WO2017038411A1

WO2017038411A1 - Switch

Info

Publication number: WO2017038411A1
Application number: PCT/JP2016/073491
Authority: WO
Inventors: 彰弥篠原; 篠原　賢二
Original assignee: オムロン株式会社
Priority date: 2015-08-31
Filing date: 2016-08-09
Publication date: 2017-03-09

Abstract

A switch according to the present invention has: a base (10) on which a bearing body (11) having a bearing section (12) at the top end thereof is formed in a protruding manner; an operating lever (30) having an operating shaft (31) the bottom end surface of which is rotatably supported on the bearing section and having at least one operating leg part (35) extending from the operating shaft towards the base; a movable contact point (28) that can be moved by means of the operating leg part when the operating shaft is rotated; and a fixed contact point (24). The switch is provided with at least one contact point mechanism (20) that is disposed on the top surface of the base and that allows the movable contact point to open from and close on the fixed contact point by means of the operating leg part.

Description

switch

The present invention relates to a switch, in particular, a switch that can be operated in multiple directions.

Conventionally, as a switch that can be operated in multiple directions, there are, for example, a multidirectional switch assembly and a switch module (see Patent Document 1). In the multidirectional switch assembly and the switch module, the switch modules 101 and 101 'are driven by the actuator 102 as shown in FIG.

US Pat. No. 6,787,716

However, in the multi-directional switch assembly and the switch module, the actuator 102 has the internal control unit 102a and the external control unit 102b assembled with universal joints around the guide pin 102c. For this reason, the multi-directional switch assembly has a problem that the number of parts and the number of assembling steps are large, and it takes time to assemble and the productivity is low.
In view of the above problems, an object of the present invention is to provide a switch with a low number of parts and assembly man-hours and high productivity.

A switch according to one aspect of the present invention is to solve the above problem.
A base projecting a bearing body having a bearing portion at the upper end;
The bearing portion (curved surface shape, for example curved concave, spherical convex, or spherical concave) at least one end face which extends toward the operating shaft which is rotatably supported, from the operating shaft to the base An operating lever having an operating leg of a book;
A movable contact that can be moved by the operating leg when the operating shaft rotates and a fixed contact are disposed on the upper surface of the base, and the movable contact is opened and closed with respect to the fixed contact by the operating leg. At least one contact mechanism.

According to the above aspect of the present invention, the contact mechanism can be directly driven by the operation leg extending from the operation shaft by rotating the operation shaft of the operation lever. For this reason, the number of parts and production man-hours are small, and a highly productive switch can be obtained.

These and other objects and features of the invention will become apparent from the following description taken in conjunction with the embodiments with reference to the accompanying drawings. In this drawing,
It is a perspective view which shows the switch of 1st Embodiment which concerns on this invention, It is a longitudinal cross-sectional perspective view of the switch shown in FIG. It is the longitudinal cross-sectional perspective view which cut | disconnected the switch shown in FIG. 1 in the position different from FIG. It is a perspective view which shows the state which removed the cover from the switch shown in FIG. FIG. 2 is an exploded perspective view of the switch shown in FIG. FIG. 6 is a cross-sectional perspective view showing the base and cover shown in FIG. 5; It is a perspective view which shows the contact mechanism shown in FIG. FIG. 8 is an exploded perspective view of the contact mechanism shown in FIG. FIG. 6 is a perspective view of the operation lever shown in FIG. 5. It is the perspective view which looked at the operation lever shown in FIG. 5 from a different angle, It is a perspective view which shows the state which attached the operation body to the switch of FIG. It is a longitudinal cross-sectional perspective view of the state which removed the cover from FIG. It is sectional drawing which shows the operation | movement before the switch shown in FIG. It is sectional drawing which shows the operation | movement of the switch shown in FIG. It is a perspective view which shows the switch of 2nd Embodiment which concerns on this invention, It is a perspective view which shows the state which removed the cover from the switch shown in FIG. It is a perspective view which shows the switch of 3rd Embodiment which concerns on this invention, It is a perspective view which shows the state which removed the cover from the switch shown in FIG. It is a perspective view which shows the switch of 4th Embodiment which concerns on this invention, It is the perspective view which looked at the switch shown in FIG. 19 from a different angle, It is a perspective view which shows the state which removed the cover from the switch shown in FIG. It is a longitudinal cross-sectional perspective view of FIG. It is a perspective view which shows the switch of 5th Embodiment which concerns on this invention, It is a perspective view which shows the state which removed the cover from the switch shown in FIG. It is a longitudinal cross-sectional perspective view of the switch shown in FIG. It is a disassembled perspective view of the switch shown in FIG. It is a perspective view which shows the base shown in FIG. It is a cross-sectional perspective view which shows the base shown in FIG. It is a perspective view which shows the contact mechanism shown in FIG. It is a cross-sectional perspective view of the contact mechanism shown in FIG. It is a perspective view of the operation lever shown in FIG. It is a cross-sectional perspective view of the operation lever shown in FIG. It is a cross-sectional perspective view of the cover shown in FIG. It is a perspective view which shows the switch of 6th Embodiment which concerns on this invention, It is a perspective view which shows the state which removed the cover from the switch shown in FIG. It is a disassembled perspective view of the switch shown in FIG. It is a perspective view which shows the base shown in FIG. It is a cross-sectional perspective view which shows the base shown in FIG. It is a perspective view of the operation lever shown in FIG. FIG. 40 is a cross-sectional perspective view of the operation lever shown in FIG. 39; It is a perspective view which shows the switch of 7th Embodiment which concerns on this invention, It is a perspective view which shows the state which removed the cover from the switch shown in FIG. It is a disassembled perspective view of the switch shown in FIG. 41, It is a perspective view which shows the base shown in FIG. It is a cross-sectional perspective view which shows the base shown in FIG. 1 is a perspective view of a multidirectional switch assembly and a switch module disclosed in Patent Document 1. FIG.

Before continuing the description of the present invention, the same parts are denoted by the same reference numerals in the accompanying drawings.

A switch according to an embodiment of the present invention will be described with reference to the accompanying drawings of FIGS.
In the following explanation, in describing the configuration shown in the drawings, terms indicating directions such as “up”, “down”, “left”, “right”, and other terms including them are used. However, the purpose of using these terms is to facilitate understanding of the embodiments through the drawings. Therefore, these terms do not necessarily indicate the direction in which the embodiments of the present invention are actually used, and the technical scope of the invention described in the claims is limitedly interpreted by these terms. Should not be done.

As shown in FIGS. 1 to 14, the switch according to the first embodiment is a switch that can be operated in four directions as an example.
The switch includes at least a base 10, a set of contact mechanisms 20, and an operation lever 30. That is, this switch includes a base 10 having a bearing body 11 having a bearing portion 12 at the upper end, an operation shaft 31 whose lower end surface is rotatably supported by the bearing portion 12, and an operating shaft 31 to the base 10. An operating lever 30 having at least one operating leg 35 extending toward the base, a movable contact 28 movable by the operating leg 35 when the operating shaft is rotated, and a fixed contact 24. At least one contact mechanism 20 that is disposed on the upper surface and that opens and closes the movable contact 28 with respect to the fixed contact 24 by the operation leg 35 is provided.
As a more specific example, as shown in FIG. 5, the switch generally includes a base 10, four sets of contact mechanisms 20, an operation lever 30, a coil spring 40, a pressure contact pin 41, and a cover 50. , Is composed of. Note that the base 10, the operation lever 30, and the cover 50 are made of an insulating synthetic resin or the like.

The base 10 is a flat rectangular plate-like body, and a bearing body 11 projects from the center of the upper surface. The bearing body 11 is provided with a spherical bearing portion 12 at its upper end. A guide groove 13 passing through the base 10 is formed in the base portion of the bearing portion 12 along the axial direction. The guide groove 13 is formed at a place where a core of a molding die for molding the bearing body 11 is disposed. Further, a plurality of substantially fan-shaped support receiving portions 14 having a cross-sectional shape are integrally formed on the outer peripheral surface of the bearing body 11 along the axial direction. Therefore, the guide groove 13 is disposed between the

support receiving portions

14 and 14.

The base 10 is formed with an annular rib 15 along the outer peripheral edge of the upper surface thereof. The annular rib 15 is provided with

notches

16a, 16b and 16c for assembling a normally open fixed contact terminal 21, a movable contact terminal 25 and a normally closed fixed contact terminal 23, which will be described later. In particular, the notch portion 16c is formed with a press-fitting groove for press-fitting the normally closed fixed contact terminal 23 on the opposing surface. In addition, the base 10 has a pair of locking

projections

18 and 18 projecting from opposite outer surfaces. The base 10 is provided with positioning protrusions 19 (FIG. 6) at the corners of the lower surface thereof.

As shown in FIGS. 7 and 8, the contact mechanism 20 includes a normally open fixed contact terminal 21, a normally closed fixed contact terminal 23, a movable contact terminal 25, and a movable contact piece 27.
The normally open fixed contact terminal 21 has a normally open fixed contact 22 fixed at the center thereof, for example, caulking fixed. The normally open fixed contact terminal 21 is bent at one end to form a press-fit portion 21a, while the other end is bent as a terminal portion 21b.
The normally closed fixed contact terminal 23 has press-fitting protrusions 23a projecting from both end faces at the center thereof. Further, the normally closed fixed contact terminal 23 is bent at one end and fixed, for example, fixed by caulking, while the other end is bent to form a terminal portion 23b.
The movable contact terminal 25 is bent and raised so that both side edges at the center thereof face each other to form a pair of

upstanding pieces

26 and 26. The

upright pieces

26, 26 are formed with locking

grooves

26a, 26b on the opposite outer surfaces. The movable contact terminal 25 is bent at one end to form a press-fit portion 25a, and is bent at the other end to form a terminal portion 25b.
The movable contact piece 27 is a flat rectangular conductive thin plate material. A movable contact 28 is fixed to one end of the movable contact piece 27, for example, caulking is fixed, and a reversing spring 29 is cut out from the one end. The reversing spring 29 has a substantially barrel side shape and is curved in the thickness direction. Further, the movable contact piece 27 has an engagement hole 27a at the other end.

Then, as shown in FIG. 5, the press-fit portion 21 a of the normally open fixed contact terminal 21 and the press-fit portion 25 a of the movable contact terminal 25 are respectively press-fitted and assembled into the terminal holes 17 a and 17 b of the base 10. Further, as shown in FIGS. 7 and 8, the opening edge portion of the engagement hole 27 a of the movable contact piece 27 is engaged with the engagement groove 26 a provided in the standing piece 26 of the movable contact terminal 25. Next, the free end 29 a of the reversing spring 29 is locked in the locking groove 26 b provided in the remaining upright piece 26. Thereby, the movable contact 28 opposes the normally open fixed contact 22 so that contact / separation is possible.
Further, the press-fitting protrusion 23a of the normally closed fixed contact terminal 23 is press-fitted into the press-fitting groove provided in the notch 16c of the base 10 and assembled. Thereby, the said movable contact 28 and the normally closed fixed contact 24 oppose so that contact / separation is possible.
In the first embodiment, the four contact mechanisms 20 are arranged point-symmetrically around the bearing body 11 of the base 10. Further, all the components of the contact mechanism 20 can be assembled from above the base 10. Therefore, by rotating the base 10 around the bearing body 11, the contact mechanism 20 can be continuously assembled to the base 10 with an automatic assembly machine.

As shown in FIG. 5, the operation lever 30 includes an operation shaft 31 having a substantially square cross section, and an insertion hole 32 is provided in the upper end surface of the operation shaft 31. A coil spring 40 and a pressure contact pin 41 are inserted into the insertion hole 32. The operation shaft 31 has an engaging claw portion 33 projecting from the upper end portion of the outer surface thereof.
Further, the operation shaft 31 has a spherical concave portion 34 on the lower end surface thereof, which can come into surface contact with the spherical bearing portion 12 of the bearing body 11, as shown in FIG. The operation shaft 31 has, for example, at least one, for example, four operation leg portions 35 extending obliquely downward from the lower end thereof, for example, evenly (FIGS. 9 and 10). The operation leg 35 has an operation projection 36 projecting from the lower surface of its free end. Further, the operation leg portion 35 is provided with a retaining rib 37 that can be elastically engaged with the annular base portion of the bearing portion 12 at the lower surface base portion (FIG. 3). Further, a position regulating rib 38 for preventing an erroneous operation is integrally provided between the adjacent operating leg portions 35, 35 (FIG. 4).

Then, as shown in FIG. 12, the retaining rib 37 is elastically engaged with the annular base portion of the bearing portion 12 by fitting the spherical recess 34 of the operating lever 30 to the bearing portion 12 of the base 10. Stops and can be assembled with one touch. For this reason, it is possible to prevent the operation lever 30 from falling off or from rattling. In addition, the operation protrusion 36 of the operation leg 35 is pressed against the movable contact piece 27, and the retaining rib 37 is fitted in the guide groove 13. Further, as shown in FIG. 13, the position restricting rib 38 abuts against the support receiving portion 14 of the base 10 so as to face the position restrictable.

The cover 50 has a box shape having a planar shape that can be fitted to the base 10 as shown in FIGS. The cover 50 is provided with a flat rectangular operation hole 51 on the ceiling surface. Position restriction projections 52 are provided at the corners of the operation holes 51, respectively. The cover 50 is provided with fitting projections 53 that fit into the

notches

16a, 16b, and 16c of the base 10 at the opening edge thereof. Further, the cover 50 is provided with a pair of substantially U-shaped locking portions 54 that can be locked to the locking protrusions 18 of the base 10 on the opposite outer surfaces. Next, as shown in FIG. 6, the cover 50 is provided so as to bridge a partition wall 55 between adjacent inner side surfaces in the internal space. The partition wall 55 functions as a reinforcing material, and increases the rigidity of the cover 50.

Then, as shown in FIG. 2, the cover 50 is put on the base 10 to which the contact mechanism 20 and the operation lever 30 are assembled. Then, the fitting protrusion 53 of the cover 50 is fitted into the

notches

16 a, 16 b, 16 c provided on the annular rib 15 of the base 10. Further, the locking portion 54 of the cover 50 is locked to the locking protrusion 18 of the base 10. Thereby, the operation lever 30 protrudes from the operation hole 51 of the cover 50 so as to be operable.
Further, the partition wall 55 of the cover 50 is disposed at a position for partitioning the normally closed fixed contact 24 and the movable contact 28 facing each other so as to be able to contact and separate from the internal space. For this reason, it is possible to prevent an adverse effect caused by an arc generated at the time of opening and closing the contact and the accompanying dust.

For example, as shown in FIGS. 11 and 12, a pair of engaging

arm portions

61 and 61 of the operating body 60 may be engaged with the engaging claw portion 33 of the operating shaft 31. In the first embodiment, the pressure contact pin 41 urged by the spring force of the coil spring 40 is in pressure contact with the operating body 60. For this reason, the operation body 60 does not rattle and does not fall off.

Next, an operation method of the switch will be described.
First, as shown in FIG. 13, before the operation of the operation lever 30, the operation protrusion 36 of the operation lever 30 is in contact with the movable contact piece 27. The movable contact 28 is in contact with the normally closed fixed contact 24, but is separated from the normally open fixed contact 22.

Then, when the operation lever 30 is rotated and tilted toward the front side in FIG. 13, the operation protrusion 36 of the operation leg 35 that is inclined pushes down the movable contact piece 27. When the operating point of the operating projection 36 exceeds a reference line (not shown) connecting the locking groove 26a and the locking groove 26b, the movable contact piece 27 is elastically deformed instantaneously by the spring force of the reversing spring 29. Invert. For this reason, the movable contact 28 is instantaneously switched from the normally closed fixed contact 24 to the normally open fixed contact 22 (FIG. 14).

Next, when the load on the operation lever 30 is removed, the operation leg portion 35 is pushed back by the spring force of the movable contact piece 27. For this reason, when the operating point of the operating projection 36 exceeds the reference line connecting the locking groove 26a and the locking groove 26b, the movable contact piece 27 returns to its original shape by the spring force of the reversing spring 29. As a result, the movable contact 28 is separated from the normally open fixed contact 22 and comes into contact with the normally closed fixed contact 24 to return to the original state.

In addition, the position regulation rib 38 provided between the said adjacent

operation leg parts

35 and 35 contact | abuts to the support receiving part 14 of the bearing body 11, and is facing so that position regulation is possible. For this reason, when the operation lever 30 is rotated in a direction other than the predetermined direction, the position restricting rib 38 comes into contact with the support receiving portion 14 and the position is restricted, and the operation lever 30 is rotated further in the direction other than the predetermined direction. Since it cannot be moved, erroneous operation of the operation lever 30 can be prevented.
Further, in the switch, the retaining rib 37 provided on the lower surface base of the operation leg 35 is fitted and guided in the guide groove 13 of the bearing body 11 (FIG. 12). For this reason, there is an advantage that erroneous operation of the operation lever 30 can be prevented more reliably.

The second embodiment is a case where the present invention is applied to a switch incorporating a set of contact mechanisms 20 as shown in FIGS. 15 and 16.
In the second embodiment, in order to prevent erroneous operation of the operation lever 30, the position of the arc-shaped position restricting rib 38 of the operation lever 30 can be brought into contact with the support receiving portion 14 having an arc-shaped cross section of the bearing body 11. Opposite to. For this reason, when the operation lever 30 is rotated in a direction other than a predetermined direction, the position restricting rib 38 abuts on the support receiving portion 14 and the position is restricted, and an erroneous operation of the operation lever 30 can be prevented.
Further, a retaining rib 37 provided on the lower surface base of the operation leg 35 is fitted into the guide groove 13 of the bearing body 11 and is guided (FIG. 16). For this reason, there is an advantage that erroneous operation of the operation lever 30 can be prevented more reliably.
Other parts of the second embodiment are substantially the same as those of the first embodiment described above, and therefore the same parts are denoted by the same reference numerals and description thereof is omitted.

In the third embodiment, as shown in FIGS. 17 and 18, the

contact mechanisms

20, 20 are arranged in parallel on both sides of the bearing body 11, while a pair of

operation legs

35, 35 are arranged on the same straight line with the operation lever 30. This is the case.
The other parts of the third embodiment are substantially the same as those of the first embodiment described above.

In the fourth embodiment, as shown in FIGS. 19 to 22, the bearing body 11 is centered in a housing formed by covering a planar regular octagonal base 10 with a planar regular octagonal box-shaped cover 50. This is the case where eight sets of contact mechanisms 20 are arranged radially (FIG. 21).
In the fourth embodiment, a planar circular operation hole 51 is provided in the ceiling surface of the cover 50 (FIG. 19). Further, the

terminal portions

21b, 23b, and 25b have shapes that can be respectively inserted into through holes of a printed board (not shown) (FIG. 20).
According to the fourth embodiment, as shown in FIG. 22, operations in eight directions can be detected by operating the operation lever 30 around the bearing body 11 having the spherical bearing portion 12. For this reason, there is an advantage that a versatile switch can be obtained.
Since the other parts of the fourth embodiment are substantially the same as those of the first embodiment, the same parts are denoted by the same reference numerals and description thereof is omitted.

The fifth embodiment is a switch that can be operated in four directions as shown in FIGS. As shown in FIG. 25, the first embodiment is substantially the same as the first embodiment described above, except that a curved concave surface provided on the base 10, for example, a spherical concave surface bearing portion 12b, and a spherical convex portion 34b of the operation lever 30 are provided. This is a point that I supported.

That is, as shown in FIG. 26, the base 10 is a flat rectangular plate-like body, and a bearing body 11 is projected from the center of the upper surface thereof. The bearing body 11 is provided with a spherical concave bearing portion 12b at the center of its upper end surface. Further, the bearing body 11 is provided with four retaining ribs 11a protruding at an equal pitch at the edge of the upper end surface. And the guide groove 13 which penetrates the said base 10 is formed in the base part of the said retaining rib 11a along the axial direction (FIG. 28). The guide groove 13 is formed at a place where a core of a molding die for molding the bearing body 11 is disposed.

As shown in FIG. 27, the base 10 has an annular rib 15 formed along the outer peripheral edge of the upper surface thereof. The annular rib 15 is provided with

notches

16a, 16b and 16c for assembling a normally open fixed contact terminal 21, a movable contact terminal 25 and a normally closed fixed contact terminal 23, which will be described later.
In particular, storage portions 16d are provided at the corners on both sides of the

notches

16a and 16b. The storage portion 16d can store the resin waste scraped by press-fitting

protrusions

21c and 25c (FIG. 29) described later when the normally-open fixed contact terminal 21 and the movable contact terminal 25 described later are assembled to the base 10. In addition, press-fitting

grooves

16e and 16f are formed on the inner surface of the notch 16c facing each other (FIG. 28). A press-fit protrusion 23a and a locking protrusion 23c of the normally closed fixed contact terminal 23 can be press-fitted into the press-

fit grooves

16e and 16f.

As shown in FIG. 29, the contact mechanism 20 includes a normally open fixed contact terminal 21, a normally closed fixed contact terminal 23, a movable contact terminal 25, and a movable contact piece 27.
In particular, press-fitting

protrusions

21 c and 25 c are provided on both end faces of the normally open fixed contact terminal 21 and the movable contact terminal 25, respectively.
Further, the normally closed fixed contact terminal 23 has press-fitting protrusions 23a and locking protrusions 23c projecting from both end faces at the center thereof. As shown in FIG. 30, the normally closed fixed contact terminal 23 protrudes from the bent one end and is processed to form the normally closed fixed contact 24. Further, the normally closed fixed contact terminal 23 is bent at the other end portion to form a terminal portion 23b.

As shown in FIG. 26, the operation lever 30 includes an operation shaft 31 having a substantially square cross section, and an insertion hole 32 is provided on the upper end surface of the operation shaft 31. A coil spring 40 and a pressure contact pin 41 are inserted into the insertion hole 32. The operation shaft 31 has an engaging claw portion 33 projecting from the upper end portion of the outer surface thereof.
The operation shaft 31 has, on the lower end surface thereof, a spherical convex portion 34b that can come into surface contact with the spherical concave bearing portion 12b of the bearing body 11, as shown in FIG.
Further, the operation shaft 31 is integrally formed with a substantially disc-shaped connecting portion 39 at the lower end thereof. Four operating leg portions 35 extend laterally from the outer peripheral surface of the connecting portion 39 at a uniform pitch. The operation leg 35 has an operation projection 36 projecting from the lower surface of its free end.
The connecting portion 39 corresponds to the four operating leg portions 35, and substantially square fitting holes 39 a are provided at equal pitches at the base portion of the operating shaft 31. The fitting hole 39a has a size that allows the retaining rib 11a of the base 10 to be fitted. Further, the fitting hole 39a is provided with an engaging protrusion 39b at a corner adjacent to the lower end of the operation shaft 31 among the corners of the inner peripheral surface thereof. The engaging protrusion 39b is continuous with the spherical convex portion 34b and forms the same spherical surface.
A guide groove 39c is formed along the axial direction between the pair of engaging

protrusions

39b, 39b provided in the same fitting hole 39a. The guide groove 39c is formed at a place where a core of a molding die for molding the engaging claw 33 is disposed.

Then, as shown in FIG. 25, by placing the spherical convex portion 34b of the operation lever 30 on the bearing portion 12b of the base 10, the retaining rib 11a is elastically engaged with the engaging protrusion 39b, and can be touched with one touch. Assembled. For this reason, it is possible to prevent the operation lever 30 from falling off or from rattling. Further, the operation protrusion 36 of the operation leg 35 is pressed against the movable contact piece 27.

As shown in FIG. 26, the cover 50 is substantially the same as the first embodiment described above, and has a box shape having a planar shape that can be fitted to the base 10. The cover 50 is provided with a planar rectangular operation hole 51 on the ceiling surface. Position restriction projections 52 are provided at the corners of the operation holes 51, respectively. However, as shown in FIG. 33, the inner side surface of the operation hole 51 is an inclined surface that spreads toward the inside. This is for facilitating the die-cutting operation of the mold during molding.
Since the other parts of the fifth embodiment are the same as those of the first embodiment described above, the same parts are denoted by the same reference numerals and description thereof is omitted.

As shown in FIGS. 34 to 40, the sixth embodiment is a switch that can be operated in two directions, and is substantially the same as the third embodiment described above. The difference between the sixth embodiment and the third embodiment described above is a bearing portion 12c having a curved concave surface provided on the bearing body 11 of the base 10, for example, a semicircular groove shape in cross section, as shown in FIG. This is a point where a cylindrical convex portion 34 c provided on the operation lever 30 is supported.

37 and 38, the base 10 is a flat rectangular plate-like body, and a flat rectangular bearing body 11 is provided on the upper surface thereof. The bearing body 11 is provided with a bearing part 12c having a semicircular groove shape in the center of the upper end surface. Further, the bearing body 11 is provided with four retaining ribs 11a protruding from the corners of the upper end surface. And the guide groove 13 which penetrates the said base 10 is formed in the base part of the said retaining rib 11a along the axial direction. The guide groove 13 is formed at a place where a core of a molding die for molding the bearing body 11 is disposed.

The contact mechanism 20 includes a normally open fixed contact terminal 21, a normally closed fixed contact terminal 23, a movable contact terminal 25, and a movable contact piece 27, as shown in FIGS. Since other parts of the sixth embodiment are substantially the same as those of the fifth embodiment, the same parts are denoted by the same reference numerals and description thereof is omitted.

As shown in FIG. 36, the operation lever 30 includes an operation shaft 31 having a substantially square cross section, and an insertion hole 32 is provided in the upper end surface of the operation shaft 31. A coil spring 40 and a pressure contact pin 41 are inserted into the insertion hole 32. The operation shaft 31 has an engaging claw portion 33 projecting from the upper end portion of the outer surface thereof.
And as shown in FIG. 39, the said operating shaft 31 has the cylindrical convex part 34c which can be in surface contact with the bearing part 12c of the said bearing body 11 in the lower end surface. Further, the operation shaft 31 is provided with two

operation legs

35, 35 at the lower end thereof. The operating

leg portions

35, 35 extend obliquely downward in a direction perpendicular to the axial direction of the columnar convex portion 34c. The operation leg 35 is provided with an operation projection 36 on the lower surface of the free end (FIG. 40).

Then, as shown in FIG. 35, when the cylindrical convex portion 34c of the operating lever 30 is fitted to the bearing portion 12c of the base 10, the retaining rib 11a is elastically engaged with the linear base portion of the cylindrical convex portion 34c. Combined with one touch. For this reason, it is possible to prevent the operation lever 30 from falling off or from rattling. Further, the operation protrusion 36 of the operation leg 35 is pressed against the movable contact piece 27.

The seventh embodiment is a switch that can be operated in two directions as shown in FIGS. As shown in FIG. 42, the sixth embodiment is different from the sixth embodiment in that the operation leg 35 of the operation lever 30 and the

contact mechanisms

20 and 20 are connected in the same direction along the extending direction of the operation leg 35. It is a point placed on the line.
Others are almost the same as those of the sixth embodiment described above, and the same parts are denoted by the same reference numerals and the description thereof is omitted.
According to the seventh embodiment, there is an advantage that an elongated switch can be obtained.

As a modification of the seventh embodiment, for example, only one contact mechanism 20 may be assembled to the base 10.
As mentioned above, although various embodiment in this invention was described in detail with reference to drawings, finally the various aspect of this invention is demonstrated.
According to the one aspect of the present invention, the operation direction can be arbitrarily selected by extending the operation leg of the operation lever in a desired direction even when the mounting position of the base is limited. it can. For this reason, the versatility switch with a large design freedom is obtained.
In the above aspect of the present invention, the contact surface and the lower end surface of the operating shaft and the bearing portion are in contact may be configured into a curved surface shape. For example, the bearing portion and the lower end surface of the operation shaft may be a combination of a curved convex surface and a curved concave surface, or a combination of a spherical convex surface and a spherical concave surface.

As one aspect of the present invention, in the above aspect, a contact surface where the bearing portion and the lower end surface of the operation shaft are in contact may be a spherical shape.

As another aspect of the present invention, in the above aspect, the bearing portion has a spherical convex shape, and a spherical concave portion that is in surface contact with the spherical convex shaped bearing portion is provided on the lower end surface of the operation shaft. May be.
According to this aspect, the spherical concave portion of the operating shaft comes into surface contact with the bearing portion having a spherical convex shape. For this reason, since the operation shaft can be rotated in multiple directions while ensuring a stable contact state, a large number of contact mechanisms can be operated.

As another aspect of the present invention, in the above aspect, a retaining rib that elastically engages with the annular base portion of the spherical convex shaped bearing portion may be provided on the outer peripheral edge of the spherical concave portion.
According to this aspect, the operation lever can be assembled to the bearing body with one touch. For this reason, a switch with good assemblability and higher productivity can be obtained.

As a different aspect of the present invention, in the above aspect, when the operation shaft is rotated in a direction other than a predetermined direction (for example, an operable direction), the support receiver provided on the outer peripheral surface of the bearing body. You may provide the position control rib which contacts a part and controls a position.
According to this aspect, when the operation shaft is rotated in a direction other than the predetermined direction, the position restriction rib of the operation shaft comes into contact with the support receiving portion of the bearing body, and the position of the operation shaft is restricted. For this reason, erroneous operation of the operation lever can be prevented, and a highly safe switch can be obtained.

As another aspect of the present invention, in the above aspect, the bearing portion may have a curved concave shape.

As another aspect of the present invention, in the above aspect, the curved concave surface shape of the bearing portion is a spherical concave surface shape, and a spherical surface that is in surface contact with the bottom end surface of the operation shaft and the spherical concave surface shape of the bearing portion. A convex part may be provided.
According to this aspect, the spherical convex portion of the operation shaft comes into surface contact with the bearing portion having the spherical concave shape. For this reason, since the operation shaft can be rotated in multiple directions while ensuring a stable contact state, a large number of contact mechanisms can be operated.

As another aspect of the present invention, in the above aspect, the curved concave surface shape of the bearing portion is a semicircular groove shape in cross section, and the lower end surface of the operation shaft is provided in the bearing portion of the semicircular groove shape in cross section. You may provide the cylindrical convex part which carries out surface contact.
According to this aspect, since the cylindrical convex portion is provided on the lower end surface of the operation shaft, the contact area is large and stable operation is possible.

As a different aspect of the present invention, in the above aspect, a retaining rib that elastically engages with the annular base portion of the spherical convex portion may be provided on the outer peripheral edge portion of the bearing portion in the upper end of the bearing body.
According to this aspect, the operation lever can be assembled to the bearing body with one touch. For this reason, a switch with good assemblability and higher productivity can be obtained.

As another aspect of the present invention, in the above aspect, a retaining rib that elastically engages with the linear base portion of the cylindrical convex portion is provided on the outer peripheral edge portion of the bearing portion of the upper end of the bearing body. Also good.
According to this aspect, the operation lever can be assembled to the bearing body with one touch. For this reason, a switch with good assemblability and higher productivity can be obtained.

As a different aspect of the present invention, in the above aspect, further comprising a cover fitted to the base,
An operation hole is provided on the ceiling surface of the cover so that the operation lever protrudes so that the operation lever can be operated, and when the operation lever is rotated in a direction other than a predetermined direction at an opening edge of the operation hole, the operation lever A position restricting projection that restricts the position by abutting on the surface may be provided.
According to this aspect, when the operation lever is operated in a direction other than the predetermined direction, the operation lever comes into contact with the position restriction protrusion provided at the opening edge portion of the operation hole, and the position of the operation lever is restricted. For this reason, it is possible to prevent erroneous operation of the operation lever, and to obtain a switch with higher safety.

In addition, it can be made to show the effect which each has by combining suitably the arbitrary aspects or embodiment or modification of the said various aspects or embodiments or modifications. In addition, combinations of aspects or embodiments, combinations of examples, or combinations of aspects or embodiments and examples are possible, and features in different aspects or embodiments or examples can be combined. Combinations of these are also possible.
Although the present invention has been fully described with reference to the above-described embodiments and the like with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as being included therein unless they depart from the scope of the invention as defined by the appended claims.

The switch according to the present invention is not limited to the above-described embodiment. For example, the operation lever may have three, five, or seven operation legs.

DESCRIPTION OF SYMBOLS 10 Base 11 Bearing body 12 Bearing part

12b Bearing part

12c Bearing part 13 Guide groove 14 Support receiving part 15 Annular rib

16a Notch part

16b Notch part

16c Notch part 18 Locking protrusion 19 Positioning protrusion 20 Contact mechanism 21 Normally open Fixed contact terminal 22 Normally open fixed contact 23 Normally closed fixed contact terminal 24 Normally closed fixed contact 25 Movable contact terminal 26 Standing piece

26a Locking groove

26b Locking groove 27 Movable contact piece 28 Movable contact 29 Reversing spring 29a Free end 30 Operation Lever 31 Operation shaft 32 Insertion hole 33 Engagement claw part 34 Spherical concave part 34b Spherical convex part 34c Cylindrical convex part 35 Operation leg part 36 Operation protrusion 37 Retaining rib 38 Position regulating rib 40 Coil spring 41 Pressure contact pin 50 Cover 51 Operation hole 52 Position restriction projection 53 Fitting projection 54 Stop part 55 Partition wall 60 Operating body 61 Engaging arm part

Claims

A base projecting a bearing body having a bearing portion at the upper end;
An operation lever having an operation shaft having a lower end surface rotatably supported by the bearing portion, and at least one operation leg portion extending from the operation shaft toward the base;
A movable contact that can be moved by the operating leg when the operating shaft rotates and a fixed contact are disposed on the upper surface of the base, and the movable contact is opened and closed with respect to the fixed contact by the operating leg. At least one contact mechanism
A switch with
The contact surface where the bearing portion and the lower end surface of the operation shaft are in contact with each other is a spherical shape
The switch according to claim 1.
The bearing portion has a spherical convex shape,
The switch according to claim 1, wherein a spherical concave portion that makes surface contact with the spherical convex bearing portion is provided on the lower end surface of the operation shaft.
4. The switch according to claim 3, wherein a retaining rib that elastically engages with an annular base portion of the spherical convex bearing portion is provided on an outer peripheral edge portion of the spherical concave portion.
The position control rib which contact | abuts to the support receiving part provided in the outer peripheral surface of the said bearing body and controls a position when the said operation shaft rotates in directions other than a predetermined direction is provided in the said operation shaft. The switch according to any one of the above.
The bearing portion has a curved concave shape,
The switch according to claim 1.
The curved concave shape of the bearing portion is a spherical concave shape,
The switch according to claim 6, wherein a spherical convex portion that is in surface contact with the bearing portion having the spherical concave shape is provided on the lower end surface of the operation shaft.
The curved concave shape of the bearing portion is a semicircular groove shape in cross section,
The switch according to claim 6, wherein a columnar convex portion that is in surface contact with the bearing portion having the semicircular groove shape in cross section is provided on the lower end surface of the operation shaft.
The switch according to claim 7, wherein a retaining rib that elastically engages with the annular base portion of the spherical convex portion is provided at an outer peripheral edge portion of the bearing portion among upper ends of the bearing body.
The switch according to claim 8, wherein a retaining rib that elastically engages with a linear base portion of the columnar convex portion is provided at an outer peripheral edge portion of the bearing portion among upper ends of the bearing body.
A cover fitted to the base;
An operation hole is provided on the ceiling surface of the cover so that the operation lever protrudes so that the operation lever can be operated, and when the operation lever is rotated in a direction other than a predetermined direction at an opening edge of the operation hole, the operation lever The switch according to any one of claims 1 to 10, wherein a position restricting protrusion is provided for restricting the position by abutting on the switch.