WO2019031165A1 - Structure for license plate mounting section of saddled vehicle - Google Patents

Abstract

This structure for a license plate mounting section of a saddled vehicle is provided with a support seat (24, 121a, 45) for supporting the rear surface of a license plate (19). A member (16) on which mounting is to be made is provided with a mounting hole (23) into which a shaft (22a, 32a) is inserted. The support seat (24, 121a, 45) is provided around the mounting hole (23). A deformation permitting recess (24, 25, 45) which permits the deflection and deformation of the license plate (19) caused by the pulling in of the shaft (22a, 32a) is provided inside the outer edge of the support seat (24, 121a, 45).

Description

License plate mounting structure for saddle-ride type vehicles

The present invention relates to a license plate attachment structure for a saddle-ride type vehicle.
Priority is claimed on Japanese Patent Application No. 2017-154348, filed Aug. 9, 2017, the content of which is incorporated herein by reference.

In a saddle-ride type vehicle such as a motorcycle, a license plate is attached to the rear or front of the vehicle (see Patent Documents 1 and 2).

In the mounting portion of the license plate described in Patent Document 1, a pair of mounting pieces projecting outward in the width direction of the vehicle are provided in a protruding manner on the front surface of a front cover which is a mounting member of the vehicle. The left and right side edges of the number plate are fastened and fixed to the pair of mounting pieces.

Further, the mounting portion of the license plate described in Patent Document 2 has a pair of left and right mounting pieces projecting from the rear surface of a rear fender which is a mounting member of a vehicle, and has a projection at a position lower than these mounting pieces. A department is provided. The upper edge of the license plate is fastened and fixed to the left and right mounting pieces, and the rear surface of the lower edge of the license plate abuts on the projection.

Japan JP 2011-46302 Japan JP 2009-107565

In the mounting portion of the license plate described in Patent Document 1, since the mounting piece is provided on the front surface of the front cover in a cantilevered manner on the front side of the front cover, the mounting piece is used to suppress deflection of the mounted license plate. Needs to be scaled up. For this reason, when the above-described structure is adopted, the mounting member (front cover) of the vehicle is enlarged, and the appearance of the vehicle is easily impaired.

In the mounting portion of the license plate described in Patent Document 2, the upper edge of the license plate is fastened and fixed to the left and right mounting pieces, while the lower edge of the license plate is pressed against the projection. There is. For this reason, when the above-described structure is adopted, the support rigidity of the license plate is enhanced, and the runout of the license plate can be suppressed. However, when the above-described structure is adopted, it is necessary to provide a projection separately from the mounting piece on the mounting member (front cover) of the vehicle, which complicates the structure of the mounting member.

The aspect of the present invention provides a license plate attachment structure for a saddle-ride type vehicle, which can suppress runout of a license plate with a simple configuration and can also improve the appearance design of the vehicle.

In order to solve the above-mentioned subject, the following composition was adopted as the number plate attaching part structure of the saddle-ride type vehicle concerning the present invention.
(1) The license plate attachment structure of a saddle-ride type vehicle according to one aspect of the present invention includes a support seat for supporting the back surface of the license plate, and the mounting member includes the flat portion to the back surface of the license plate. There is provided a mounting hole into which the shaft portion projecting to the side is inserted, the support seat is provided around the mounting hole of the mounted member, and inside the outer edge portion of the support seat, When the shaft portion is drawn inward in the axial direction of the mounting hole to be fixed to the mounting member, a deformation permitting recess is provided which allows bending deformation of the license plate accompanied with retraction of the shaft portion.

According to the configuration of the above (1), when attaching the license plate to the mounting member of the vehicle, the shaft portion projecting from the back surface of the flat portion of the license plate is inserted into the mounting hole of the mounting member. In this state, the shaft portion is drawn inward in the axial direction of the mounting hole, and in this state, the shaft portion is fixed to the mounting member by the fixing means as appropriate. As a result, the flat portion of the license plate is pulled by the shaft, and the flat portion is bent and deformed in the deformation permitting recess. In a state where the license plate is bent into a predetermined shape and tension is applied from the shaft, the back surface is pressed against the support seat. As a result, the license plate is restrained from swinging by the applied tension, and is attached to the mounting member in that state.

(2) In the aspect of the above (1), the mounting member includes a substantially cylindrical boss that protrudes outward from the outer surface of the mounting member, and the support seat is formed on the end face of the boss A collar member may be attached to the inside of the boss, the first end being inserted into the attachment hole and holding the shaft.

In the case of the above-mentioned embodiment (2), the mounting member is provided with a substantially cylindrical boss portion projecting outward, and the support seat is formed on the end face of the boss portion. The license plate can be stably held by the boss without being affected. For this reason, the degree of freedom of the outer surface shape of the mounting member can be enhanced. Further, since the collar member for holding the shaft portion is attached to the inside of the substantially cylindrical boss portion, stress concentration occurs on the end surface of the boss portion when the shaft portion is pulled in and fixed to the inside of the mounting hole. It becomes difficult. Thus, the boss can be easily formed of a resin material.

(3) In the aspect of the above (2), the collar member has a locking claw that protrudes radially outward, and the boss is locked in a state where the locking claw is inserted from the inside It may be configured to have a locking groove.

In the case of the above aspect (3), the collar member can be easily inserted into the boss by inserting the collar member into the inside of the boss and locking the locking claw of the collar member in the locking groove of the boss in this state. Can be attached to Further, the detachment of the collar member from the boss can be restricted by the engagement between the locking claw and the locking groove.

(4) In the aspect of the above (2), the collar member has a flange wall that protrudes radially outward, and the boss portion protrudes toward the inside of the side wall of the boss portion to It may be configured to have a locking claw.

In the case of the above-mentioned mode (4), the collar member is inserted inside the side wall of the boss portion, and the flange wall of the collar member is pushed over the removal restricting claw into the boss portion. As a result, the collar member is easily attached to the boss, and removal of the collar member is restricted by the removal restricting claw.

(5) In the aspect according to any one of (2) to (4), the support seat is formed by a flat surface, and an end face of the first end portion of the collar member is in the axial direction of the mounting hole. The deformation allowing recess may be formed by the mounting hole and the end face of the collar member.

In the case of the above aspect (5), the amount of retraction of the shaft when mounting the license plate can be limited by the position of the end face of the collar member in the mounting hole. For this reason, the tension acting on the license plate can be easily adjusted by replacing the collar members with different specifications.

(6) In the aspect according to any one of (1) to (4), the support seat and the deformation allowing recess may be formed by an inclined recess surface which is recessed while being continuously inclined from the outer peripheral edge portion to the attachment hole. It may be configured.

In the case of the above aspect (6), when the shaft portion is drawn into the mounting hole at the time of attachment of the license plate, the inclined recess surface which is the support seat contacts the back surface of the license plate with a wide area. As a result, a stable tension can be generated in the license plate, and the license plate can be stably supported by the support seat.

(7) In the aspect according to any one of (1) to (4), the support seat is formed by an inclined recess surface that is inclined and recessed toward an attachment hole from an outer peripheral edge portion, A step-like recess may be provided inside the surface, and the deformation permitting recess may be configured by the inclined recess surface and the step-like recess.

In the case of the above aspect (7), since the stepped recess is provided inside the inclined recess surface which is the support seat, when the shaft is pulled into the mounting hole when the license plate is attached, the license plate The recessed portion is deeply recessed to facilitate the generation of a stronger tension on the number plate. Therefore, it is possible to further suppress the runout of the license plate.

(8) In the aspect of the above (6) or (7), a plurality of fine recesses may be formed on the inclined recess surface.

In the case of the above aspect (8), when the license plate attached to the mounting member is subjected to traveling vibration, engine vibration or the like to vibrate, the air in the recess functions to suppress the vibration. Therefore, when the configuration is adopted, the vibration of the number plate can be suppressed.

(9) In the aspect according to any one of (1) to (8), the attached member is a cover member of a vehicle larger than the license plate, and the license plate is attached to the cover member by rivets. It may be fixed.

In the case of the above aspect (9), since the license plate is attached to the mounting member by the difficult rivet to be detached and the mounting member is constituted by the large cover member which is difficult to carry out, the number plate is stolen from the vehicle Can be suppressed.

(10) In the aspect of any one of the above (2) to (4), a female screw in which the shaft portion is screwed may be formed on the inner surface of the collar member.

In the case of the above aspect (10), since the internal thread is formed in the collar member itself, it is not necessary to separately provide a nut. Therefore, in this case, the number plate can be fixed to the mounting member by a simple configuration capable of suppressing an increase in the number of parts.

(11) In the aspect according to any one of the above (2) to (4), the boss may be formed in a polygonal shape as viewed from the protrusion direction of the boss.

In the case of the aspect (11), the plurality of corner portions of the boss portion can easily impart directivity to the tension applied to the license plate.

(12) In the aspect according to any one of (2) to (4), the mounting member is a resin cover member of a vehicle, and the boss is spaced apart in the vehicle width direction toward the outer surface side. A plurality of sections are disposed, and a plurality of reinforcing ribs are disposed on the back surface side, and the reinforcing ribs are disposed between a first reinforcing rib extending in a direction connecting adjacent boss sections and an adjacent boss section. It may be configured to have an inclined rib along a direction in which the connecting direction is intersected with the connecting direction.

In the case of the above aspect (12), the back surface side of the cover member is reinforced by the first reinforcing rib and the inclined rib, and the bending rigidity and torsional rigidity of the cover member are enhanced.

(13) In the aspect of (12), the region between the adjacent bosses of the cover member may be convexly curved in the protrusion direction of the bosses.

In the case of the above aspect (13), the bending rigidity and torsional rigidity of the curved portion between the adjacent bosses of the cover member are effectively enhanced by the first reinforcing rib and the inclined rib. Therefore, even when the load accompanying the retraction of the shaft is input to the cover member at the time of fixing the number plate, the deformation of the cover member due to the input load is effectively suppressed by the first reinforcing rib and the inclined rib. Can.

According to the aspect of the present invention, the deformation allowing recess is provided inside the outer edge of the support seat that supports the back surface of the license plate, and the shaft of the license plate is pulled inside the mounting hole and fixed to the mounting member Sometimes, the deformation of the license plate due to the retraction of the shaft portion is permitted by the deformation permitting recess. For this reason, it is possible to attach the license plate to the mounting member in a state where a part of the license plate is bent into a predetermined shape and tension is applied. Therefore, according to the present invention, the support rigidity of the number plate can be enhanced while suppressing the complication and upsizing of the mounting member. And since the complexity and enlargement of a to-be-attached member can be suppressed, the appearance designability of a vehicle can also be improved.

1 is a perspective view of a saddle-ride type vehicle according to an embodiment of the present invention. It is the perspective view which looked at the front center cover of 1st Embodiment of this invention from surface side. It is the perspective view which looked at the front center cover of 1st Embodiment of this invention from the back surface side. It is a top view of a number plate attachment part of a 1st embodiment of the present invention. FIG. 5 is a cross-sectional view taken along the line VV of FIG. 2 of the number plate attachment portion of the first embodiment of the present invention. It is a top view of the color | collar member used for the license plate attaching part of 1st Embodiment of this invention. It is sectional drawing similar to FIG. 5 which shows a mode that a number plate is riveted to the number plate attaching part of 1st Embodiment of this invention. It is sectional drawing similar to FIG. 5 which shows the state which riveted the number plate to the number plate attaching part of 1st Embodiment of this invention. FIG. 9 is a cross-sectional view of the saddle-ride type vehicle according to the first embodiment of the present invention taken along the line IX-IX of FIG. 3; It is the figure which showed typically deflection | deflection behavior of a license plate when the license plate attaching part of 1st Embodiment of this invention is employ | adopted. It is sectional drawing similar to FIG. 8 which shows the state which bolted the number plate to the number plate attaching part of the modification of 1st Embodiment of this invention. It is a perspective view of the license plate attachment part of the other modification of 1st Embodiment of this invention. FIG. 12B is a cross-sectional view taken along the line XX in FIG. 12A, which is a perspective view of a license plate attachment portion of another modification of the first embodiment of the present invention. It is a perspective view of the number plate attaching part of a 2nd embodiment of the present invention. FIG. 13B is a cross-sectional view taken along the line YY of FIG. 13A, which is a perspective view of the license plate attaching portion of the second embodiment of the present invention. It is a perspective view of the color | collar member used with the license plate attaching part of 2nd Embodiment of this invention. It is the figure which showed the bending behavior of a number plate when the number plate attaching part of a 2nd embodiment of the present invention is adopted. It is a longitudinal cross-sectional view of the number plate attachment part of the modification of 2nd Embodiment of this invention. It is a perspective view of the number plate attaching part of a 3rd embodiment of the present invention. FIG. 17B is a cross-sectional view taken along the line ZZ of FIG. 17A, which is a perspective view of the license plate attaching portion of the third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, the directions such as front, rear, left, and right are the same as the directions in the vehicle unless otherwise specified. Further, arrow FR in the figure points to the front of the vehicle, arrow UP points to the upper side of the vehicle, and arrow LH points to the left of the vehicle.

FIG. 1 is a front view of a front portion of a saddle-ride type vehicle 1 according to the embodiment as viewed from the front upper left.
The saddle-ride type vehicle 1 of the present embodiment is a scooter type motorcycle.
In the saddle-ride type vehicle 1, although a detailed illustration is omitted, a steering stem is rotatably supported by a head pipe at a front portion of a vehicle body frame. A front fork supporting a front wheel is attached to the steering stem. A steering handle 2 is attached to the top of the steering stem. The main frame of the vehicle extends rearward and downward to the head pipe. In addition, a step floor is provided below the front of the seat on which the driver sits, on which the driver's foot is placed.

A front cover unit 10 covering the front side of the step floor is attached to the front body frame (head pipe and main frame). Further, a steering wheel cover 13 having a headlamp 11 and blinkers 12 is attached to the steering handle 2.

The front cover unit 10 includes a pair of left and right front side covers 14L and 14R covering the outside of the left and right front forks, and a front center cover 16 covering an opening 15 formed between the fronts of the left and right front side covers 14L and 14R. , And an inner cover 9 covering between the rear portions of the left and right front side covers 14L and 14R.

The left and right front side covers 14L and 14R are formed of metal members and attached to the vehicle body frame via a stay (not shown). The front center cover 16 and the inner cover 9 are formed of a resin material. The opening 15 between the front portions of the front side covers 14L and 14R is formed in a substantially U shape in a front view of the vehicle body. To be precise, in the opening 15, a strip-like gap between the left and right front side covers 14 </ b> L and 14 </ b> R extends vertically at the center of the lower end of the U-shaped portion.

The front center cover 16 is formed in substantially the same shape as the opening 15 between the front portions of the left and right front side covers 14L and 14R. However, a part of the lower region of the front center cover 16 is formed narrower than the width of the opening 15 in the vehicle width direction. At the edge of the lower region of the opening 15, a flange portion 17 is extended so as to be stepped. The gap between the opening 15 and the lower region of the front center cover 16 is substantially closed by the flange portion 17. However, a rubber louver cover 18 having a plurality of vent holes 18 a is attached to the flange portion 17, and outside air can flow into the front cover unit 10 through the vent holes 18 a of the louver cover 18. ing.

Here, the front center cover 16 is attached to the left and right front side covers 14L and 14R and the inner cover 9 as follows.
The position near the lower end portion and the peripheral edge portion of the front center cover 16 is engaged with the left and right corresponding front side covers 14L and 14R by the locking claws 7 or the like. The upper end of the front center cover 16 is screwed to the upper end of the inner cover 9. The fastening screw is tightened from the rear side of the inner cover 9 into a clip nut (not shown) provided at the upper end of the front center cover 16. Further, the left and right edges of the front center cover 16 close to the lower portion fix the flange portions 17 of the corresponding left and right front side covers 14L and 14R and the front side covers 14L and 14R to the vehicle body frame on the lower side of the louver cover 18. The screw 8 is fastened and fixed to a stay (not shown) for the purpose. The screw is covered by a louver cover 18 and is invisible from the outside.

The front center cover 16 is gently curved so as to be convex forward in the vertical direction. Further, the front center cover 16 is also formed to be curved in a forward convex in the width direction so that the central portion in the vehicle width direction protrudes forward in a ridge line shape.
A number plate mounting portion 20 for mounting the number plate 19 on the front side of the front center cover 16 is provided in an area closer to the top of the front center cover 16. The license plate attaching portion 20 of the present embodiment is provided with a pair of left and right boss portions 21 provided to protrude on the front surface of the front center cover 16. The bosses 21 are provided symmetrically with respect to the center in the width direction of the front center cover 16.
In the present embodiment, the front center cover 16 constitutes a mounting member of a vehicle. Further, the front center cover 16 is a cover member of a vehicle larger than the license plate 19.

The structure of the license plate attaching portion 20 of the first embodiment will be described below.
FIG. 2 is a perspective view of the license plate attachment portion 20 of the first embodiment as viewed from the front surface side (front side) of the front center cover 16. FIG. 3 is a front center of the license plate attachment portion 20 of the first embodiment. FIG. 7 is a perspective view of the cover 16 as viewed from the back side (rear side). 4 is a plan view showing a part of the license plate attaching part 20 of the first embodiment in an enlarged manner, and FIG. 5 is a cross-sectional view taken along the line VV of FIG.
In the present embodiment, the license plate 19 is fixed to the front center cover 16 by the rivets 22. In the case of the present embodiment, the shaft portion protruding from the flat portion of the license plate 19 to the back surface side is the shaft portion 22 a of the rivet 22 (see FIGS. 7 and 8). The rivet 22 can be fixed from the outer surface side of the number plate 19 by using a blind rivet, for example. The riveting will be described in detail later.

The left and right bosses 21 of the license plate mounting portion 20 are formed in a square tube shape and project forward (outside the vehicle) from the outer surface of the front center cover 16. A circular attachment hole 23 passing through the end wall of the boss 21 is formed on the end face (protruding end) of each boss 21. In the case of the present embodiment, the outer shape of each boss portion 21 is formed in an irregular quadrangular shape as viewed from the protrusion direction of the boss portion 21. Specifically, as shown in FIG. 4, in the outer shape of the boss portion 21, the vertical side on the inner side in the width direction is longer than the vertical side on the outer side in the width direction, and the lower horizontal side faces upward in the width direction It is formed in the shape of an irregular square inclined to Further, each boss portion 21 is formed so as to be slightly tapered so that the outer shape on the root portion side is large and the outer shape gradually decreases toward the projecting end side.

Further, in the peripheral area of the outer edge portion of the end face of the boss portion 21, an inclined recess surface 24 having a predetermined width is continuously formed. The inclined recess surface 24 is recessed from the outer peripheral edge of the boss portion 21 toward the mounting hole 23 while being inclined downward. Further, in the inner region of the inclined recess surface 24 of the end face of the boss portion 21, a stepped recess portion 25 recessed downward in a step-like manner is provided. The mounting hole 23 is formed in the stepped recess 25. In the present embodiment, the inclined recess surface 24 of the boss 21 abuts on the back surface of the number plate 19 to form a support seat for supporting the back surface. Further, the stepped recess portion 25 of the present embodiment is inclined downward toward the mounting hole 23 via the step, and in addition to the inclined recess surface 24, this inner region constitutes a deformation permitting recess. Further, a plurality of minute hemispherical concave portions 26 (dimples) are formed in the inclined recess surface 24 of the boss portion 21.

At the corner on the upper end side of the mutually opposing sides (for example, the vertical side on the inner side in the width direction and the vertical side on the outer side in the width direction) of the protruding ends of the boss portion 21, The notch 27 is formed so that it may do. These notches 27 constitute a locking groove in which a locking claw 28a of a collar member 28 described later is inserted from inside the boss 21 and engaged.

A metal collar member 28 is attached to the inner side of the rectangular cylindrical boss portion 21 from the back surface side of the front center cover 16.
FIG. 6 is a view of the collar member 28 as viewed from above.
As shown in FIGS. 5 and 6, the collar member 28 has a cylindrical wall 28b having an insertion hole 28bH inside, and a substantially rectangular top view projecting radially outward from the outer peripheral surface near the upper end of the cylindrical wall 28b. Of the flange wall 28c, and the above-mentioned locking claws 28a projecting in opposite directions (outward in the radial direction of the cylindrical wall 28b) from mutually opposing short sides of the flange wall 28c.

The inner surface of the side wall portion of the boss portion 21 is formed so as to be slightly tapered in a direction from the root portion side toward the projecting end side. The collar member 28 slightly inclines the cylindrical wall 28 b so that the flange wall 28 c and the locking claws 28 a at the both ends are inclined, and is inserted into the boss 21 in that state.
In this state, when the collar member 28 is pushed to the vicinity of the protruding end of the boss portion 21 and the side wall of the boss portion 21 is elastically deformed while the inclined posture of the collar member 28 is returned, the pair of locking claws 28a of the collar member 28 It is inserted into the corresponding notch 27 of the boss 21. As a result, the collar member 28 is fixed in the boss portion 21 in a state where the upper surface of the flange wall 28 c is in contact with or close to the back surface of the end wall of the boss portion 21, and the pair of locking claws 28 a correspond to each other. By coming into contact with the upper surface of the notch 27, the detachment from the boss 21 is restricted. At this time, the upper portion of the cylindrical wall 28 b of the collar member 28 is inserted into the mounting hole 23 of the end wall of the boss portion 21. In the case of this embodiment, the upper end surface 28d of the cylindrical wall 28b of the collar member 28 is set so as to be substantially the same height as the upper end of the mounting hole 23 or slightly lower than the upper end of the mounting hole 23 in this state. It is done.

FIG. 7 is a cross-sectional view similar to FIG. 5 showing how the number plate 19 is riveted to the boss portion 21 of the front center cover 16. FIG. 8 is a cross-sectional view similar to FIG. 5 showing a state in which the number plate 19 is riveted to the boss portion 21 of the front center cover 16. In FIGS. 7 and 8, the license plate 19 is shown by an imaginary line.
Here, the rivet 22 used for fixing the license plate 19 is a blind rivet, and as shown in FIG. 7, the rivet 22 has a flange portion 22 b (head) abutting on the front surface of the license plate 19 and a flange A sleeve 22c projecting to one side in the axial direction from the portion 22b and a projecting end of the sleeve 22c are integrally coupled, and are inserted into the sleeve 22c and the other end protrudes to the other side in the axial direction from the flange 22b And a stem 22d. The sleeve 22 c constitutes a shaft 22 a of the rivet 22.

When actually riveting the number plate 19 to the boss portion 21, the number plate 19 is placed on the left and right boss portions 21, and the shaft portion 22 a (sleeve 22 c) of the rivet 22 is inserted into the corresponding rivet of the number plate 19. It is inserted into the hole 19 a and the mounting hole 23 of the boss 21. At this time, the shaft portion 22 a (sleeve 22 c) of the rivet 22 is inserted into the cylindrical wall 28 b of the collar member 28 assembled in advance to the boss portion 21. The tip of the shaft 22a (sleeve 22c) penetrates the cylindrical wall 28b of the collar member 28 downward.

Next, in this state, the mandrel 22d of the rivet 22 protruding upward from the flange portion 22b is drawn in by a dedicated tool, thereby applying a drawing load to the tip of the sleeve 22c to plastically deform the tip of the sleeve 22c. Let As a result, the tip end of the sleeve 22c is axially squeezed and is radially outwardly flanged and deformed. Hereinafter, this bulging-deformed portion will be referred to as “a bulging flange 22e”. Also, at this time, the mandrel 22d of the rivet 22 is pulled out or cut away from the sleeve 22c.
As a result, the flange portion 22b of the rivet 22 and the bulging flange 22e firmly sandwich the number plate 19 and the cylindrical wall 28b of the collar member 28, and the number plate 19 is pressed against the inclined recess surface 24 of the boss portion 21 It will be fixed to the boss portion 21.

When the rivet 22 is caulked by the dedicated jig as described above, a bulging flange 22e is formed on one end side of the rivet 22, and the bulging flange 22e abuts on the lower end of the cylindrical wall 28b of the collar member 28. At this time, the shaft 22a (the upper region of the shaft 22a) of the rivet 22 is guided by the cylindrical wall 28b of the collar member 28 and pulled downward (inward in the axial direction of the mounting hole 23). Thereby, the flange portion 22b of the rivet 22 presses the peripheral portion of the rivet insertion hole 19a of the license plate 19 downward from the outer surface side. At this time, the peripheral edge of the rivet insertion hole 19 a of the license plate 19 is drawn downward in the stepped recess 25 on the boss 21, and the license plate 19 brings the back surface into contact with the entire surface of the inclined recess surface 24. As it flexes and deforms.

FIG. 9 is a cross-sectional view taken along line IX-IX of FIG. 3 of the front center cover 16 to which the license plate 19 is attached. FIG. 10 is a view showing the bending behavior of the license plate 19 when the license plate 19 is attached to the license plate attachment portion 20. As shown in FIG. The imaginary line indicated by reference numeral 19 in FIG. 9 is an exaggeration of the bending behavior of the number plate 19.
The license plates 19 attached to the left and right bosses 21 are bent and deformed so as to follow the inclined recess surfaces 24 which are the support seats of the bosses 21 and, as shown by the arrows in FIG. The tension (drawing force) centering on 22 b (attachment hole 23 of the boss portion 21) is applied to the surface of the number plate 19. As a result, the license plate 19 is fixed to the left and right bosses 21 while maintaining high surface rigidity.

Further, as shown in FIG. 3 and FIG. 9, in a region positioned between the bases of the left and right bosses 21 in the back surface of the front center cover 16, a rib formed by mutually connecting a plurality of reinforcing ribs A block 29 is provided in a protruding manner. The rib block 29 includes five first reinforcing ribs 29 a extending along the direction connecting the left and right bosses 21 and two second reinforcing ribs 29 b extending along the direction orthogonal to the first reinforcing ribs 29 a. And four inclined ribs 29c extending in a direction obliquely intersecting the first reinforcing rib 29a and the second reinforcing rib 29b. In the five first reinforcing ribs 29a, the extension length of the three inner ones is set shorter than the extension length of the two outer ones. In addition, in order to distinguish these, code | symbol 29ai is attached | subjected to the inner three 1st reinforcement rib 29a, and code | symbol 29ao is attached to the two outer 1st reinforcement rib 29a. The two second reinforcing ribs 29b connect the ends of the inner three first reinforcing ribs 29ai. The first reinforcing rib 29a and the second reinforcing rib 29b thus connected constitute an inner rib block 29i having a rectangular front view.
Four inclined ribs 29c connect the respective ends of the two outer first reinforcement ribs 29ao with the adjacent corners of the inner rib block 29i. The region between the bases of the left and right bosses 21 on the back surface of the front center cover 16 is reinforced by the rib block 29 described above.

As described above, the license plate attachment portion 20 of the present embodiment is the inside of the inclined recess surface 24 forming the deformation permitting recess inside the outer edge of the support seat (the inclined recess surface 24) that supports the back surface of the license plate 19 A region and a step-like recess 25 are provided. Further, at the time of rivet setting of the number plate 19, the bending deformation of the number plate 19 accompanied by the pulling-in of the shaft portion 22 a of the rivet 22 is allowed by the inclined recess surface 24 and the stepped recess portion 25. Therefore, the license plate 19 can be attached to the front center cover 16 in a state in which a part of the license plate 19 is bent into a predetermined shape to apply a tension.
Therefore, when the structure of the license plate attachment portion 20 of the present embodiment is adopted, the support rigidity of the license plate 19 can be enhanced while suppressing the complication and upsizing of the front center cover 16 which is a mounting member. . And when this structure is adopted, the complexity and size of the front center cover 16 can be suppressed, and the appearance design of the vehicle is also enhanced.

Further, in the license plate attaching portion 20 of the present embodiment, a substantially cylindrical boss portion 21 projecting to the vehicle outer side is provided on the front center cover 16 which is a mounting member, and the end face of the boss portion 21 is a support seat. An inclined recess surface 24 is formed. For this reason, the license plate 19 can be stably held by the boss portion 21 without being influenced by the outer surface shape of the three-dimensionally curved front center cover 16. Therefore, when the structure of the license plate attaching portion 20 of the present embodiment is adopted, the degree of freedom of the outer surface shape of the front center cover 16 can be enhanced.

Furthermore, in the license plate attachment portion 20 of the present embodiment, a collar member 28 for holding the shaft portion 22 a of the rivet 22 is attached to the inside of the substantially cylindrical boss portion 21. For this reason, when the shaft 22a of the rivet 22 is pulled into the inside of the mounting hole 23 to fix the number plate 19, stress concentration on the end face of the boss 21 is less likely to occur. Therefore, when the structure of the license plate attaching portion 20 of the present embodiment is adopted, the boss portion 21 can be easily formed of a resin material.

Further, the license plate attachment portion 20 of the present embodiment is provided on the boss portion 21 when the locking claw 28a protruding outward in the radial direction is provided on the collar member 28 and the collar member 28 is inserted into the boss portion 21. The locking claw 28a is inserted from the inside into the cut portion 27 (locking groove) and locked. Therefore, when this structure is adopted, the collar member 28 can be easily attached to the boss portion 21 and the detachment of the collar member 28 from the boss portion 21 can be achieved by the engagement between the locking claw 28a and the notch portion 27. It can be regulated by the union.

Further, in the license plate mounting portion 20 of the present embodiment, the support seat for supporting the back surface of the license plate 19 is formed by the inclined recess surface 24 which is recessed from the outer peripheral edge of the boss portion 21 toward the mounting hole 23. It is done. A step-shaped recessed portion 25 recessed in a step-like shape is provided on the inner side of the inclined recessed surface 24, and the deformation-allowed recessed portion is configured by the inclined recessed surface 24 and the step-shaped recessed portion 25. Therefore, when the shaft 22a of the rivet 22 is drawn into the mounting hole 23 at the time of attachment of the license plate 19, the peripheral portion of the rivet insertion hole 19a of the license plate 19 is deeply recessed in the stepped recess 25. Can produce a stronger tension. Therefore, when the structure of the present embodiment is adopted, the surface rigidity of the number plate 19 can be further enhanced, and the deflection of the number plate 19 can be suppressed more efficiently.

Furthermore, in the present embodiment, a plurality of fine recesses 26 (dimples) are formed on the inclined recess surface 24 with which the back surface of the license plate 19 abuts. Therefore, when the license plate 19 tries to vibrate due to traveling vibration, engine vibration, etc., the air in the plurality of recesses 26 functions to suppress the vibration, and the vibration of the license plate 19 is generated efficiently. It can be well suppressed.

Further, in the case of the present embodiment, the license plate 19 is fixed to the front center cover 16 which is a cover member larger than the license plate 19 by the rivets 22. Therefore, it is difficult to remove the riveted license plate 19 from the front center cover 16, and since the front center cover 16 is a large component, it is also difficult to remove the front center cover 16 from the vehicle and carry it out. Therefore, when this structure is adopted, theft of the license plate 19 from the vehicle can be suppressed.

Furthermore, in the license plate attaching portion 20 of the present embodiment, the bosses 21 for supporting the back surface of the license plate 19 at the end face are formed in an irregular quadrangular shape as viewed from the projecting direction. By the corner portion, the tension applied to the license plate 19 can be easily made to have directivity. Therefore, when this structure is adopted, tension can be easily applied to the desired area on the license plate 19. In the present embodiment, although the shape of the boss portion 21 viewed from the projecting direction is a quadrilateral shape, the shape of the boss portion 21 is another polygonal shape such as a triangular shape or pentagonal shape other than the quadrilateral shape. It is good.

Further, in the present embodiment, on the back surface of the front center cover 16 which is a resin-made cover member, the space between the first reinforcing rib 29 a along the direction connecting the adjacent bosses 21 and the adjacent bosses 21 is A plurality of reinforcing ribs including the inclined rib 29c along the connecting direction and the diagonally intersecting direction are provided in a protruding manner. For this reason, the bending rigidity and the torsional rigidity of the region between the left and right bosses 21 of the front center cover 16 can be efficiently enhanced by the first reinforcing rib 29 a and the inclined rib 29 c.

In particular, in the case of a cover member having a shape that is convexly curved in the projecting direction of the boss portion 21 in the region between the left and right boss portions 21 as in the front center cover 16 of the present embodiment, Even when a large load is input to the left and right bosses 21 through the rivets 22 at the time of fixing, it is possible to effectively suppress the warpage deformation of the front center cover 16 due to the input load.

FIG. 11 is a cross-sectional view similar to FIG. 8 showing a license plate attaching portion 20A of a modification of the first embodiment. In FIG. 11, the same parts as those described above are denoted by the same reference numerals.
In the number plate attachment portion 20A of this modification, bolt fastening is adopted as a fixing means for fixing the number plate 19 to the front center cover 16. The basic configuration is the same as that described above, but a female screw 31 is formed on the inner surface (insertion hole 28bH) of the cylindrical wall 28b of the collar member 28, and the shaft portion 32a of the bolt 32 for fixing the license plate 19 is a female screw 31. It is screwed into the In the present modification, the shaft portion projecting from the flat portion of the license plate 19 to the back surface side is constituted by the shaft portion 32 a of the bolt 32.

In the case of this modification, the female screw 31 is formed on the cylindrical wall 28b of the collar member 28, so that the number plate 19 can be easily attached to the front center cover 16 by bolt fastening while suppressing an increase in the number of parts. .
In addition, it is also possible to form the internal thread 31 in the cylindrical wall 28b of the collar member 28, and to share the collar member 28 at the time of riveting and at the time of bolt fastening.

FIG. 12A is a perspective view showing a license plate attaching portion 20B of another modification of the first embodiment, and FIG. 12B is a view showing a cross section along line XX of FIG. 12A. 12A and 12B, the same reference numerals are given to the same parts as those described above.
The license plate attaching portion 20B of this modification is different from that of the above description only in that a plurality of fine hemispherical concave portions 26 are not formed in the inclined recess surface 24 which is a support seat.
The present modification has the same basic configuration as that of the above description, and therefore, similar effects can be obtained except for the point regarding the recess 26. In the present modification, an internal thread 31 is formed on the inner surface of the cylindrical wall 28 b of the collar member 28.

Subsequently, the license plate attaching portion 120 of the second embodiment shown in FIGS. 13A to 15 will be described. In each embodiment described below, the same parts as those of the first embodiment are denoted by the same reference numerals.

FIG. 13A is a perspective view showing the license plate attaching portion 120 of the second embodiment, and FIG. 13B is a view showing a cross section along line YY of FIG. 13A. FIG. 14 is a perspective view of the collar member 128 used in the license plate attaching portion 120 of the present embodiment. Moreover, FIG. 15 is a figure which shows the bending behavior of the number plate 19 attached to the number plate attachment part 120 of 2nd Embodiment.
Similarly to the first embodiment, in the license plate attaching portion 120 of the present embodiment, the boss portion 121 is provided so as to protrude from the front center cover 16, and the circular attachment hole 23 is formed in the end wall of the boss portion 121. ing. The collar member 128 is attached to the inside of the boss portion 121. The end surface 121a (upper end surface) of the boss portion 121 is configured by a flat surface. In the case of the present embodiment, the flat end face 121 a of the boss portion 121 constitutes a support seat for supporting the back surface of the number plate 19. Further, at the corner on the upper end side of the mutually opposing sides of the projecting end of the boss portion 121, as in the first embodiment, the notch portion 27 is formed so as to penetrate a part of the side wall of the boss portion 121 inside and outside. Is formed.

The collar member 128 has a cylindrical wall 128b inserted into the mounting hole 23 from the inside of the boss 121, and a flange wall 128c having a rectangular plan view and projecting radially outward from one end of the cylindrical wall 128b. doing. An internal thread 31 is formed on the inner peripheral surface (insertion hole 128bH) of the cylindrical wall 128b. The collar member 128 can be formed, for example, by forging.

Further, inside the side wall of the boss portion 121, a pair of removal restricting claws 34 protruding inward from the lower end of each notch portion 27 are provided in a protruding manner. The lower surface side of the removal restricting claw 34 is formed to be inclined upward in a tapered manner toward the tip end side, and the upper surface side is formed substantially horizontally. When the collar member 128 is inserted into the inside of the boss 121 with the cylindrical wall 128 b facing upward, the removal restricting claw 34 supports the lower surface of the flange wall 128 c of the collar member 128. When the collar member 128 is pushed into the inside of the boss portion 121, when the end of the flange wall 128c deforms and slips over the stopper claw 34, the substantially horizontal upper surface is the lower surface of the flange wall 128c. Abut on. The collar member 128 is thereby restricted from coming off the boss portion 121.

Here, when the collar member 128 is attached to the boss portion 121 as described above, the upper end surface 128 d of the collar member 128 is lower than the outer end of the mounting hole 23 (a flat end surface of the boss portion 121 It is arranged to be lower than 121a. In the present embodiment, the mounting hole 23 of the boss 121 and the upper end surface 128d of the collar member 128 constitute a deformation allowing recess.

In the present embodiment, the number plate 19 may be fixed to the boss 121 either by riveting or bolting. In any case, the shaft portion of the fixing means protruding from the flat portion of the number plate 19 to the back surface side is inserted into the mounting hole 23 of the boss portion 121 and the insertion hole 128bH of the collar member 128, and the shaft portion is mounted By being drawn inward in the axial direction of the hole 23, the license plate 19 is fixed to the boss portion 121.

In the case of this embodiment, since the upper end surface 128d of the collar member 128 which constitutes the deformation allowing recess together with the mounting hole 23 is set lower than the flat end surface 121a of the boss 121, the shaft of the fixing means is the mounting hole When drawn inward in the axial direction of 23, the number plate 19 is depressed in the direction of the mounting hole 23 and is deformed in a flexible manner, and the back surface of the number plate 19 abuts on the end surface 121 a of the boss portion 121. When the license plate 19 is thus fixed to the boss portion 121 by the fixing means, as shown in FIG. 15, the tension due to the drawing around the fixing portion (in FIG. 15, the fixing portion by the rivet 22 is shown) Occurs and the state is maintained.

The license plate attaching portion 120 of the present embodiment can obtain the same basic effect as that of the first embodiment, but can obtain the following effects separately.
That is, in the license plate attachment portion 120 of the present embodiment, the flat end face 121a of the boss 121 is a support seat, and the upper end face 128d of the collar member 128 is lower than the flat end face 121a of the boss 121. The deformation allowing recess is formed by the mounting hole 23 of the boss 121 and the upper end surface 128 d of the collar member 128. Therefore, the amount of pulling in of the shaft portion of the fixing means at the time of attachment of the license plate 19 can be limited by the position of the upper end surface 128 d of the collar member 128 in the attachment hole 23. Therefore, when the license plate attaching portion 120 of the present embodiment is adopted, the tension acting on the license plate 19 can be easily made by replacing it with the collar member 128 having different specifications (different in length of the cylindrical wall 128b). It can be adjusted.

Further, in the license plate attachment portion 120 of the present embodiment, the flange member 128c is provided on the collar member 128, and the detachment restricting claw 34 projecting inward on the side wall of the boss 121 locks the flange wall 128c. It is provided. Therefore, when the license plate attaching portion 120 of the present embodiment is adopted, the collar member 128 can be easily attached to the boss portion 121, and the detachment of the collar member 128 from the boss portion 121 is restricted. The claws 34 make it possible to regulate.

FIG. 16 is a view showing a longitudinal cross section of a license plate attaching part 120A of a modification of the second embodiment.
The same color member 28 as that of the first embodiment is used for the license plate attachment portion 120A of this modification, and the license plate attachment portion 120A is attached to the boss portion 121 in the same manner as the first embodiment. That is, the collar member 28 has a cylindrical wall 28b, a flange wall 28c, and a pair of locking claws 28a, and the pair of locking claws 28a are locked to the notch 27 of the boss 121. . The boss portion 121 has a flat end surface 121 a, and the end surface 128 d of the collar member 28 disposed in the mounting hole 23 of the boss portion 121 is disposed lower than the flat end surface 121 a of the boss portion 121. Also in the case of this modification, the same effect as that described above can be obtained.

Next, the license plate attaching portion 220 of the third embodiment shown in FIGS. 17A and 17B will be described.
FIG. 17A is a perspective view showing the license plate attaching portion 220 of the third embodiment, and FIG. 17B is a view showing a cross section taken along the line ZZ in FIG. 17A.
Similarly to the first embodiment, in the license plate attaching portion 220 of the present embodiment, the boss portion 221 is provided so as to protrude from the front center cover 16, and the circular attachment hole 23 is formed in the end wall of the boss portion 221. ing. Further, a collar member 28 is attached to the inside of the boss portion 221 as in the first embodiment. At the end face of the boss portion 221, an inclined recessed surface 45 which is recessed while being inclined continuously from the outer peripheral edge portion to the mounting hole 23 is formed. In the case of the present embodiment, the support surface for supporting the back surface of the license plate is constituted by the inclined recess surface 45, and the deformation permitting recess is also constituted by the inclined recess surface 45.

Also in the case of this embodiment, the fixing means of the license plate to the boss portion 221 may be either riveting or bolt fastening. The shaft portion of the fixing means is inserted into the mounting hole 23 of the boss portion 221 and the insertion hole 28bH of the collar member 28 in the license plate, and the shaft portion is pulled inward in the axial direction of the mounting hole 23 to thereby obtain the boss portion 221. It is fixed to In the license plate attachment portion 220 of the present embodiment, since the inclined recess surface 45 is provided on the end face of the boss portion 221 so as to be inclined and recessed continuously from the outer peripheral edge portion to the attachment hole 23, the shaft portion of the fixing means Is drawn inward in the axial direction of the mounting hole 23, the license plate is bent and deformed so as to follow the inclined recess surface 45, and is fixed to the boss portion 221 in a state in which the bent state is maintained.

The license plate attaching portion 220 of the present embodiment can obtain the same basic effect as that of the first embodiment, but can separately obtain the following effects.
That is, in the license plate attachment portion 220 of the present embodiment, the end surface of the boss portion 221 is provided with the inclined recessed surface 45 which is continuously inclined and recessed from the outer peripheral edge portion to the mounting hole 23. A support seat and a deformation allowance recess are constituted. For this reason, when the shaft portion of the fixing means is drawn into the mounting hole 23 at the time of attachment of the license plate, the inclined recess surface 45 which doubles as the deformation permitting recess and the support seat contacts the back surface of the license plate with a wide area. Therefore, when the license plate attaching portion 220 of this embodiment is employed, a stable tension can be generated in the license plate, and the license plate is supported in a stable state on the inclined recess surface 45 which is a support seat. be able to.

The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the invention. For example, in each of the above embodiments, the license plate attachment portion is provided on the front surface of the front center cover 16 at the front of the vehicle body, but the license plate attachment portion is provided on vehicle members other than the front center cover 16 Also good. Further, the same license plate mounting portion as the above may be provided on a vehicle member at the rear of the vehicle such as a rear fender, and the number plate may be mounted on the license plate mounting portion.

In addition, the saddle-ride type vehicle according to the present invention is not limited to motorcycles (including motor bikes and scooter type vehicles), but also three wheels (including front two wheels and rear two wheels as well as one front and rear two wheels) Or four-wheeled small vehicles are also included.

1 ... saddle riding type vehicle 16 ... front center cover (attachment member, cover member of vehicle)
19 Number plate 20, 20A, 20B, 120, 120A, 220 Number plate mounting portion 21, 121, 221 Boss portion 22 Rivet 22a, 32a Shaft portion 23 Mounting hole 24 Inclined recessed surface (support seat, Deformable recess)
25 ... Step-like depression (deformation acceptable recess)
26 ... recessed part 27 ... notched part (locking groove)
28, 128 ... collar member 28a ... locking claw 29a ... first reinforcing rib 29c ... inclined rib 31 ... female screw 34 ... slippage restricting claw 45 ... inclined depression surface (support seat, deformation acceptable recess)
121a ... end face (support seat)
128c ... flange wall

Claims (13)

The license plate attachment structure of a saddle-ride type vehicle is
A support seat (24, 121a, 45) for supporting the back surface of the license plate (19);
The mounting member (16) is provided with a mounting hole (23) into which a shaft (22a, 32a) projecting from the flat portion of the number plate (19) to the back side is inserted.
The support seat (24, 121a, 45) is provided around the mounting hole (23) of the mounting member (16),
Inside the outer edge of the support seat (24, 121a, 45), the shaft portion (22a, 32a) is pulled inward in the axial direction of the mounting hole (23) and fixed to the attached member (16) There is provided a deformation allowing recess (24, 25, 45) for allowing the bending deformation of the license plate (19) accompanying the retraction of the shaft (22a, 32a). The mounting member (16) includes substantially cylindrical bosses (21, 121, 221) which project outward from the outer surface of the mounting member (16).
The support seat (24, 121a, 45) is formed on the end face of the boss portion (21, 121, 221),
Inside the bosses (21, 121, 221), collar members (28, 128) are inserted at the first end into the mounting holes (23) to hold the shafts (22a, 32a). The number plate attachment part structure of the saddle-ride type vehicle according to claim 1 attached. The collar member (28) has a locking claw (28a) projecting radially outward,
The number of the saddle-ride type vehicle according to claim 2, wherein the boss portion (21) has a locking groove (27) which is locked in a state where the locking claw (28a) is inserted from the inside. Plate mounting structure. The collar member (128) has a radially outwardly projecting flange wall (128c),
The saddle-ride according to claim 2, wherein the boss (121) has a pull-out restriction claw (34) which protrudes toward the inside of the side wall of the boss (121) and locks the flange wall (128c). Plate mounting part structure of a model vehicle. The support seat (121a) is formed by a flat surface,
The end face (128d) on the first end side of the collar member (128) is disposed lower than the axial outer end of the mounting hole (23),
The number of the saddle-ride type vehicle according to any one of claims 2 to 4, wherein the deformation allowing recess is constituted by the mounting hole (23) and the end face (128d) of the collar member (128). Plate mounting structure. The said support seat and the said deformation | transformation allowance recessed part are comprised by the inclined hollow surface (45) which inclines and dents continuously from the outer-periphery edge part to the said attachment hole (23) any one of Claims 1-4. The license plate attachment structure of the saddle-ride type vehicle described in. The support seat is formed by an inclined recess surface (24) which is inclined and recessed from the outer peripheral edge toward the mounting hole (23),
A stepped recess (25) recessed in a step-like manner is provided inside the inclined recess surface (24),
The number plate attachment portion structure of a saddle-ride type vehicle according to any one of claims 1 to 4, wherein the deformation allowing recess portion is constituted by the inclined recess surface (24) and the stepped recess portion (25). . The number plate attachment portion structure of a saddle-ride type vehicle according to claim 6 or 7, wherein a plurality of minute recessed portions (26) are formed in the inclined recess surface (24). The mounting member is a cover member (16) of a vehicle larger than the license plate (19), and the license plate (19) is fixed to the cover member (16) by rivets (22). The license plate attaching portion structure of a saddle-ride type vehicle according to any one of Items 1 to 8. The number of the saddle-ride type vehicle according to any one of claims 2 to 4, wherein a female screw (31) to which the shaft portion (32a) is screwed is formed on an inner surface of the collar member (128). Plate mounting structure. The saddle-ride according to any one of claims 2 to 4, wherein the bosses (21, 121, 221) are formed in a polygonal shape when viewed from the projecting direction of the bosses (21, 121, 221). Plate mounting part structure of a model vehicle. The mounting member is a resin-made cover member (16) of a vehicle, and a plurality of boss portions (21, 121, 221) are disposed apart from each other in the vehicle width direction on the outer surface side. A plurality of reinforcing ribs (29a, 29c) are arranged on the side,
The reinforcing rib (29a, 29c) is between the first reinforcing rib (29a) along the direction connecting the adjacent bosses (21, 121, 221) and the adjacent bosses (21, 121, 221) The license plate attaching portion structure of a saddle-ride type vehicle according to any one of claims 2 to 4, further comprising: an inclined rib (29c) extending in a direction crossing the direction connecting the first and second lines. The region between the adjacent bosses (21, 121, 221) of the cover member (16) has a convexly curved shape in the direction in which the bosses (21, 121, 221) project. The number plate attachment part structure of the saddle-ride type vehicle according to claim 12.

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