WO1988004001A1

WO1988004001A1 - Centered/decentered power transmission wheel

Info

Publication number: WO1988004001A1
Application number: PCT/JP1987/000906
Authority: WO
Inventors: Kenkichi Onogi
Original assignee: Tokyo Jido Kiko Kabushiki Kaisha
Priority date: 1986-11-24
Filing date: 1987-11-24
Publication date: 1988-06-02
Also published as: AU8325787A

Abstract

A centered/decentered power transmission wheel (10), in which a disc wheel (15), which constitutes the transmission wheel (10), is provided so that it can be moved slidingly along a support member (13), which is mounted on a rotary shaft (11), to maintain by removing or re-mounting a bushing (14), which is normally fitted in the transmission wheel (10), from or on the power transmission wheel (10) the center (C) of rotation of the disc wheel (15) and the axis (0) of the rotary shaft (11) in alignment with each other while the transmission wheel (10) is in a normal operation, and out of alignment while the replacement of a belt or the repairing of a part is carried out, whereby the replacement of a belt, the repairing of a part and other kinds of operations can be carried out speedily without moving the rotary shaft (11) itself.

Description

Description Eccentric power transmission vehicle Technology field

The present invention relates to an improvement in a transmission vehicle mainly used for a power transmission device such as rotary power.

More specifically, an eccentric power transmission capable of performing an operation without moving each axis position on the driving side and the driven side, for example, when exchanging a belt or chain. It concerns cars.

Background technology

Conventionally, for example, various types of transmission wheels for transmitting rotational power, such as pulleys, gears, idler wheels, and sprockets, are known. As an example, FIG. 7 (A) is a cross-sectional view of a conventional Zhang Dy transmission machine, and FIG. 7 (B) is a plan view of a state in which the transmission car is attached. And have you in the drawings, the driven wheel 1 is attached ¾ to the output shaft 0 E, the drive wheel 2 is attached daringly the input shaft 0 _2. Belt 3 is wound around driven vehicle 1 and driven vehicle 2, and transmits rotational power from the input shaft to the output shaft. A tension wheel 4 is used to apply the required tension to the belt 3, which is supported by an arm 5 connecting the axes 0 ₃ and 0 ₄ , and the axis 0 ₄ is under pressure by the adjuster 6 . 7 is a clamp element pushing, 8 is a bolt, and 9 is a ring composed of an inner ring 9a and an outer ring 9b. The transmission wheels 1 and 2 on the driven side and the drive side are fixed to the rotating shafts _{{1} and} # ₂ , respectively. This sticking is due to the keys and keyways used in the past. In recent years, the method of fixing using friction and pushing has been adopted as the clamp element 7 because of its large torque transmission and impact load compared to the conventional fixing method.

However, in the structure of a transmission wheel that is supported by this type of fixing method, it is easier to remove the transmission wheel from the rotating shaft than when using a key and keyway. While there is an advantage that the work efficiency is improved at one time, the tension is transmitted in the state where Zhang Dy is wrapped around in maintenance work that needs to be performed frequently such as exchange of belts etc. The clamp element cannot be removed from the axle because it is acting as a large force on the car.

In transfer machine utilizing transmission wheel of this kind, to so enable the Berudo exchange frequent and easily is one of the axis of the input shaft 0 ₂ or the output shaft 0 is moved in the direction of the mating axis The only option is to loosen the belt. Usually, the output shaft is not suitable for moving because it is kicked dog weight of the load device is敢付, input - to so as to move with the force axis 0 ₂ of the motor to which it is directly connected (not shown) Is common. Therefore, there is a disadvantage in that an adjustment stand specially designed according to a specific device is required to be installed so that the motor can be transferred as well as simply supported. In addition, since the entire gantry becomes larger with an increase in output, the adjustment gantry for mounting the motor is usually installed separately from the load device. Then, this time, there is a problem that the distance between the input and output axes must be increased, so that a number of accompanying problems frequently occur.

The first is that the belt grows at a high rate due to the long Zhang Dyna. In order to make use of this, it is essential to adjust the tension wheel frequently, for example, every week, or to move and adjust the motor mount every few weeks, which necessitates the maintenance staff to be resident and a large cost. Increased disadvantageous power.

The second problem is that this type of transmitter and motor are separate, so the transmitter must be hermetically sealed in a single housing or at least semi-hermetic due to the need to connect to the motor. Cannot be wrapped. Therefore, the transmitter must be open. For this reason, this type of transmitter cannot be used in a standing atmosphere such as water vapor, water droplets, powder, and salt at all times, and there are many restrictions on operating conditions. Especially when installing this type of power transmission vehicle outdoors, a pulley wheel with a large diameter is used to overcome the decrease in friction coefficient due to rainwater, but the perimeter of the tension band wrapped around it Long, the effects of Zhang Dyi's growth mentioned above will increase accordingly.

Third, in the case of a long skirt, Zhang Dyi undulates during the rotation of the lotus, and the tension compensation function, such as a tension car, does not work effectively.

Therefore, in this type of power transmission vehicle, maintenance work such as replacement of brooms or repair of the transmission unit can be easily performed without having to move the axis of the rotating shaft on which it is mounted. The emergence of transmission vehicles and transmitters was eagerly awaited. Disclosure of the invention

An eccentric power transmission vehicle according to the present invention is provided with a support having a sliding surface attached to a rotating shaft and having a sliding surface formed in a plane direction perpendicular to the axis thereof. A disc wheel provided with a coupling portion with the power transmission member, and a bushing attached to one of the rotating shaft, the support, and the PJ wheel to be fitted with the disc wheel. The center of rotation of the car and the axis of the rotating shaft are coaxial with each other when the bushing is fitted to the wheel, and remain in the centered state when the push-fit is released. the cormorant O is, the disc wheel is pushing the easy single a description of _α FIG surface is obtained by slidably Te沿Tsu to the support in accordance with the removable

FIG. 1 shows a power transmission vehicle capable of shaking according to a first embodiment of the present invention, in which a marauder (Α) is a cross-sectional view, a diagram (Β) is a plan view, and a concealed (C) is a belt operator. This is an explanatory screen that shows the trouble.

FIGS. 2A and 2B show a power transmission vehicle capable of being centered according to a second embodiment of the present invention. FIG. 2B is a front view, FIG. 2B is a plan view, and FIGS. It is an explanatory view showing a belt exchange boat in a modification in which means are added. FIG. 3 is a cross-sectional view of a power transmission vehicle according to a third embodiment of the present invention, in which FIG. 3 is a sectional view, FIG. 3B is a partial side view of the groove portion, and FIG. 3C is a third embodiment. It is a top view explaining belt exchange in the transmission machine using the transmission car of the example.

FIG. 4 is a sectional view of a power transmission vehicle according to a fourth embodiment.

FIG. 5 shows an eccentric power transmission vehicle according to a fifth embodiment of the present invention, in which FIG. (断面) is a cross-sectional view, and FIG. (Β) is a partial cross-sectional view showing a deformation 钶 of the pushing.

FIG. 6 is a sectional view showing an eccentric power transmission vehicle according to a sixth embodiment of the present invention by way of an example of a sprocket. Fig. 7 shows a conventional transmission vehicle. Fig. (A) is a sectional view, and Fig. (B) is a schematic configuration diagram of a belt transmission vehicle using the transmission vehicle. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, as an embodiment of the present invention, a case where an eccentric power transmission vehicle is mainly applied to a pulley vehicle of a belt transmission will be described.

[First embodiment]

FIGS. 1 (A) and 1 (B) are a cross-sectional view and a plan view of an eccentric power transmission vehicle (indicated by reference numeral 10) mounted on a rotating shaft 11 according to a first embodiment of the present invention. is there. The eccentric pulley 10 of the present invention as a whole includes a support 13 attached to a rotary shaft 11 via a key 12, a tapered pushing or clamping member 14, and a detachably supported support 13 on the support 13. And a pulley disc wheel 15 coaxially arranged with the shaft 11 by a tapered pusher 14.

In FIG. 1 (A), the support base 13 is shown as being separate from the rotating shaft 11, but may be processed as a lead body if desired. The support base 13 has a number of screw holes 13a near its periphery and, as described later with reference to FIG. 1 (C), an upper surface for slidingly guiding the disc wheel 15 when the pusher 14 is loosened and removed. Are formed.

The pusher 14 has a generally frusto-conical profile, with a tapered wedge portion 14a on the outer periphery, a bolt hole 14b at the top, and a shaft insertion hole 14c at the center. Is formed. The bolt 17 is inserted into the through hole 14b, and is screwed into the screw hole 11a of the rotating shaft 11. Below the top of the bushing 14, a member 18 is pressed in to move the pushing upward. The pulley disk wheel 15 has a belt engaging portion 15a on its outer periphery, a flat portion 15b to be supported on the support base 13, and a pushing seat portion 15c at the center. The belt engaging portion 15a has a V-groove that receives the tensioned belt 20 [see the first surface (C) (C-1)] in a tight transmission relationship (hard coupling). The flat portion 15b is provided with a plurality of sets of long holes 15e arranged so as to face each other on the diameter. In Fig. 1 (B), there are two pairs of this long 15e, each pair consisting of two slots arranged on the same diameter, which are orthogonal to the other pairs. The receiving portion 15c has a central opening 15f, which is demarcated by a PJ conical surface 15d, and is arranged coaxially with the rotating shaft 11 in a normal state (FIGS. 1A and 1B). A bolt 16 is inserted into a long hole 15 e aligned with the screw hole 13 a of the support 13, and the bolt 16 is fastened to fix the wheel 15 to the support 13. In order to distinguish bolts inserted in one set of long holes 15e arranged on the diameter from bolts inserted in other sets of long holes, reference numerals 16a and 16b are used in Fig. 1 (B). The set of bolts 16a is arranged in parallel with the direction in which the disk wheel 15 can be moved in the example shown in FIG.

Prior to the fastening of the bolt 16, the wheel 15 inserts the pushing 14 into the central opening 15f and the bolt 17 into the threaded hole 11a of the rotary shaft 11 as shown in FIG. As shown in A), they are arranged coaxially with the rotation axis 11.

The operation of the power transmission vehicle according to the present invention will be described with reference to FIG. 1 (C). Fig. (C-1) shows a drive shaft 22, for example, a drive pulley 21 mounted on a motor shaft, and a tightening belt 20 wound around a driven boo string formed on a center pulley of the present invention. Is shown. In Fig. 1 (C) and (C-1), the axis 0 of the rotating load U coincides with the center C of the rotary wheel 15, and the pulley 21 and the pulley 10 are normally driven via the tightening belt 20. Join In a relationship. one

If the belt 20 needs to be replaced for any reason, first, bolts 16b on a row perpendicular to the line connecting the rotation axis center 0 and the center of the drive shaft 22 must be removed from the slot 15e. Remove and then loosen the bolt 16a in a direction parallel to the above line to some extent. Then, when the bolt 17 is gradually loosened, the pushing 14 is pushed upward by the cooperation of the wedge portion 14e and the conical surface 15d of the circular wheel 15 under the influence of the tension belt 20. Then, the disk wheel 15 is slid toward the drive shaft 22 along the flat portion 13b of the support base 13, and finally the pushing 14 is completely removed from the central opening 15f, and the wheel wheel 15 is (C) It reaches the position shown in (C-2). In this state, the drive (hard) connection between the belt 20 and the disk wheel 15 is completely disengaged, and between the belt 20 and the wheel wheel 15 is shown in FIG. The belt 20 can be easily removed from the pulleys 21 and 10 because of the gap between them, as shown in -2). Instead, the center C of the circular wheel 15 is eccentric as shown in FIGS. 1 (C) and (C-2).

The new belt 20 'can be easily wrapped around pools 21 and 10 because of the gap β. The disk wheel 15 is manually slid on the flat portion 13b of the support base 13 so that the belt 20 'is engaged with the groove 15a and moved in the direction in which the tension is applied. next. The pusher 14 is inserted into the center opening 15ί of the disk wheel 15, and the bolt 17 is inserted into the screw hole 11a of the rotating shaft 11 from the re-bolt through hole 14b. ) Tighten until they match as shown in (C-1). Tightening bolts 16a and 16b completes reassembly of pulley 10. .

[Second embodiment] 2 (A) and 2 (B) show a second embodiment of an eccentric power transmission vehicle of the present invention as a sectional view and a plan view, respectively. The same reference numerals used in FIGS. 1 (A) and 1 (B) indicate the same or corresponding parts.

The pulley 10 in FIGS. 2 (A) and 2 (B) comprises a support 13 attached to a rotating shaft 11 via a clamp element 12, a tapered bushing 14, and a disk wheel 15. The bushing and the disc wheel are connected to each other by a connecting bolt 17 inserted therebetween. The clamp element 12 may be a publicly known one. Here, the clamp element 12 includes an outer ring 12c and an inner ring 12b fastened by a port 12a that can be tightened from the front of the apparatus. The support base 13 has a flat portion 13a on the upper surface, a support portion 13b, and a central opening 13c for accommodating the clamp element 12.

The bushings 14 shown in FIGS. 2A and 2B function as power transmission means, but the bushings 14 in FIGS. 1A and 1B have less power transmission functions, Used as a positioning member for coaxial. In the case of the second embodiment, a key 19 may be interposed between the rotating shaft 11 and the pushing 14. Further, a slit 14e may be formed on the pushing 14 to increase the positioning accuracy.

The circular wheel 15 in FIGS. 2 (A) and (B) does not have a slot as shown in FIGS. 1 (A) and 1 (B), and the upper surface flat portion 13a of the support base 13 is provided on the back surface. The sliding surface 15g that is in contact is machined. Grooves 15a are formed on the outer peripheral surface of the circular wheel 15 for winding a timing belt (not shown), and locking holes 15h are attached to upper and lower portions thereof.

In the embodiment shown in FIGS. 2 (A) and 2 (B), the tension due to the timing belt is smaller than when a V belt is used, so that the bushing 14 can be easily detached from the disk car 15. It is possible. Pushing 14 Excluding, disc wheel 15 slides over the flat portion 13a of the support base 13, a distance of any smaller interval L ₂ between the thickness or pulleys of bushings sheet ring 14 support base 13 to You can move around, where you can remove the old belt and replace it with a new one.

2 (C) and 2 (D) show modified examples when the transmission wheel 10 of the present invention is used vertically. When the pusher 14 is removed, the disc wheel 15ί falls due to gravity to the position shown in FIG. + β. One surface of the disk wheel 15 is provided with falling-off preventing means 15k for preventing the disk wheel from falling off in the direction indicated by the arrow で in FIG. 2 (C). The prevention means 15k is formed by fixing the locking piece 15i to the disc wheel 15 with a bolt or a screw 15j. As shown in (D), it is sandwiched between the disc wheel 15. It is to be noted that a combination of the bolt 16 and the long 6e 15e as shown in FIG. 1 (B) can be used as a means for preventing the vertically disposed disc wheel 15 from falling off.

[Third embodiment]

FIGS. 3 (Α), (Β) and (C) relate to a third embodiment of the present invention. Here, the pushing 14 is not tightened with the wheel 15 as in the previous example, but is fixed with the support 13. Is press-fitted into the tapered opening. Flop from the support base 13 - so FIG. 3 (B) will by shown in Do § Li groove 13 _g Contact and 15J2 as a drop-off preventing means pulley 15 is provided, between the support base 13 and the pulley 15 Is allowed only in the direction along the groove. Further, no key or clamp means is interposed between the rotating shaft 11 and the support 13, but rather, a clearance fit is provided. And clipping 13d for retaining Is provided. Accordingly, when the pusher 14 is removed, the wheel 15 moves the support 13 to the rotating shaft 11 even if the rotating shaft 11 cannot be manually rotated depending on the type of a load device (not shown). On the other hand, by manually rotating independently, it is possible to change the direction to a desired rotation direction. For this reason, the support 13 and the rotating shaft 11 are soft-coupled without using a key.

Fig. 3 (G) illustrates the belt exchange method of the belt transmitter. If the axial grooves 13g, 15β (or the length 15e in FIG. 1) lie in the direction shown by the broken line D 時に when the shaft 〇停止 stops, it is assumed that the bushing 14 has been loosened. The wheel 15 cannot move in the direction to loosen the belt. Therefore, the direction of the manually rotated chain line § Li groove (or Choroku) D _z in the direction of arrow A circular扳車15 according to the present invention对to independently support base 13 by the rotation shaft 11 If turned, the disc wheel 15 can slide in the direction of arrow B, and the bell 20 can be loosened and replaced easily. At this time, it is not necessary to move any of the axes Ο, Ο ζ or 〇 ₃ .

[Fourth embodiment]

FIG. 4 shows a power transmission vehicle according to a fourth embodiment. In this implementation, the bilateral axle 11 is supported on the rainy side of the Confucian pulley 10. When the bolt 17 is removed through the maintenance hole 50a provided in the support lid 50 and the bushing 40 is moved from the pulley wheel 15 as indicated by the dotted line, the belt pressure applied to the pulley wheel 15 is released. Therefore, after that, the lid 50 is removed, and the belt is detached.

In addition, the upper part of the illustrated pushing 40 is extended upward as a dredge for supporting both shafts, and one end is closed as shown in Fig. 1 (A). It may be formed into a jig-like shape, and the bolt 17 for attachment to the rotating shaft 11 may be passed through the closing part and fastened. A bearing similar to 19a may be attached. In this case, when the bolt 17 is released, the pushing 40 moves upward in the lid 50, and the belt can pass between the lower end of the bushing 40 and the tip of the rotating shaft 11 in the lid 50. A gap may be formed, and belt exchange may be performed using this gap.

[Fifth embodiment]

In the fifth embodiment shown in FIG. 5 (A), a cylindrical bushing 14 is used, which is a screw 17 between a convex inner ring bushing 14h and a concave outer ring bushing 14f. It is a clamp. The joint surface between the inner ring bushing 14h and the outer ring bushing 14f is tapered. In this example, there is an advantage that the distance L between the inner wall of the receiving portion 15c and the back surface of the rotating shaft 11 can be increased, so that even a belt with poor workability such as a scrum belt is used. It can be easily detached. In FIG. 5 (A), the pushing 14 and the rotating shaft 11 have a hard transmission coupling relationship.

Next, FIG. 5 (B) shows an example in which the concept of the outer ring pushing 14ί in FIG. 5 (Α) is used in the same manner as the pushing 14 shown in FIG. 1 (Α). The cap-shaped pushing 14 in FIG. 5 (5) has a tapered inner surface that engages with the tapered portion 11 a at the tip of the rotating shaft 11. The outer surface of the bushing 14ί and the inner surface of the pulley 15 are screwed together to form an insertion guide. A transmission (hard) connection is set between the pulley 15 and the support [not shown, but similar to the support 13 in FIG. 1 (Α)] via a fastening bolt 16, and the other side of the pushing 14 And the tip of the rotating shaft 11 1 1 a Is soft-connected so that it can be easily attached and detached, and is used for positioning because the rotation center of the circular wheel 15 and the axis of the rotating shaft 11 are coaxial.

[Example S]

FIG. 6 shows still another embodiment in which the eccentric power transmission vehicle of the present invention is applied to a sprocket transmission vehicle. In this example, as the pushing, a type in which the tapered portion 24 between the inner ring 21 and the outer ring 22 of the clamp element 14 ′ is tightened with the bolt 23 is used, and 钶 in FIGS. 1 and 2 is used. In contrast to the park lamp element, this example forms a cylindrical sleeve. When the disk wheel 15 is small, the hoisting adjuster 30 is unnecessary because the axis can be adjusted manually, but when the wheel wheel 15 uses a complex chain, the hoisting bolt 31 is used. A hoisting adjuster 30 including:

When the pusher 1 shown in Fig. 6 is applied to a belt transmission vehicle, a cap pulling structure similar to the pusher 14 shown in Fig. 1) is added above the inner chamber 21 and the bolt is used. The bolt 17 can be screwed into the rotation shaft 11 through the through hole 14b. The attachment and detachment is facilitated by the mutual connection between the bolt 23 and the bolt 27. When it is necessary to switch the connection between the belt and the pulley to soft or hard, only the tip of the outer bellows 22 is tapered to have a male taper, and correspondingly, the seat 15d is formed. If only the upper opening is female-tapered, pulley positioning and clamping can be performed simultaneously without impairing the function of clamp element 14 '. In this case, the moving distance of the wheel car 15 has the maximum interval L.

In the above example, the bushing 14 has been described as being limited to the metal structure in which the bushing 14 is guided by the rotary shaft 11, but the bushing 14 is not provided with the shaft insertion hole 14c. The bolt 17 itself may be used as the guide shaft, and when the pushing 14 and the disk wheel 15 are soft-coupled, it is not necessary to provide the guide end of the rotary shaft 11. At that time, the eccentricity of the disk wheel 15 can fluctuate greatly. In addition, a known slit can be inserted into the pushing 14 in order to obtain coaxial accuracy. Industrial utility

As described above, the eccentric power transmission vehicle according to the present invention has been described mainly with respect to the transmission vehicle for rotational power using a belt tension belt. However, the present invention is not limited to a belt or chain tension belt. Needless to say, the present invention can be effectively applied to a case in which a pressure contact is made between gears or other transmission members such as a roller, an idler wheel, a friction transmission wheel, or the like. Absent.

The eccentric power transmission vehicle of the present invention is expected to bring about new industrial innovation, particularly in the field of belt transmissions. That is, according to the present invention, just by attaching / detaching the bushing to / from the disk wheel, the rotation center of the transmission wheel and the axis of the rotary shaft are maintained coaxial during normal operation, and eccentric during belt replacement. It can be maintained in a state. This means that, unlike the conventional case in which the rotating shaft itself is moved together with the transmission vehicle, the belt can be replaced even when the input and output shafts are fixed. As a result, the belt transmission, which was considered impossible in the past, can be housed in a single housing and modularized just like a gear transmission. From an industrial perspective, conventional pulley transmission vehicles or belts are often assembled on site in accordance with each machine, and overwhelmingly sold and sold as mere parts. However, according to the present invention, like the gear reducer, / JP87 / 0 90

It means that the position as a new standardized or standardized transmitter module can be secured.

In particular, if the housing is made of a material, a heavy motor can be integrated, and the life of the transmitter can be extended even under the surrounding environment such as rainwater and dust. In addition, since the distance between the shafts can be reduced, a short-perimeter belt can be used, and only a small amount of belt extension is required. In addition, this degree of belt extension is sufficient by adding a tension adjustment mechanism inside the housing. Since it can be absorbed, there is an advantage that it is possible to provide a transmitter with virtually no maintenance for a long time and low noise.

In addition, as described above, regarding the pulley transmission vehicle, since it is a part, production control of many kinds has been forced, but according to the present invention, it is possible to standardize the standard as a belt transmission. As a result, it is possible to reduce the number of production models and to mass-produce it. * It is possible to provide a new modularized transmitter that is less expensive than a vehicle transmitter and has less shock absorption. In particular, when the shaft pulley is supported by a rain bearing, advantageous transmission can be achieved even when an impact force is applied to the output shaft.

In addition, the concept of Honmei can be applied to transmission vehicles other than Zhang Dyi transmission machine, internal repair and parts replacement, and its industrial value is high.

Other aspects, objects, and advantages of the present invention will become apparent from a review of the claims, including the drawings and the description.

Claims

The scope of the claims

A support mounted on the rotating shaft and having a sliding surface formed in a direction perpendicular to the axis thereof; a disc wheel provided with a connection portion with another transmission body on a peripheral edge; A pusher that is screwed to either the support or the disk wheel and fits with the disk wheel. The rotation center of the disk wheel and the axis of the rotation shaft are formed by the bushing on the disk wheel. The disc wheel can slide along the support so that the disc wheel is maintained coaxial with each other when it is fitted to the vehicle and eccentric when the fitting is released. The eccentric power transmission vehicle described above. The above-mentioned disc wheel is sandwiched by a support disposed on one plane side thereof and a pusher detached from the disc wheel on the other plane side. An eccentric power transmission vehicle as set forth in claim 1.

3. The eccentric power transmission according to claim 2, wherein the disc wheel has a sliding plane that is in contact with a sliding face of the support. The disc wheel is a pulley disc wheel. And the other transmission is a belt, and the boxing is detachable with the belt wound around the pulley wheel. An eccentric power transmission vehicle according to the item.

5. The eccentric power transmission vehicle according to claim 4, wherein the support is formed integrally with the rotary shaft.

5. The eccentric power transmission vehicle according to claim 4, wherein the support is connected to the rotating shaft via a connecting means such as a key or a clamp.

The pushing is centered on the rotating shaft and the disk wheel. 7. The power transmission vehicle according to claim 5 or 6, wherein the power transmission vehicle is hard-connected to the opening. ·

8. The power transmission vehicle according to claim 5 or 6, wherein the bushing is softly coupled to a receiving portion provided on the disk wheel.

9. The eccentric power transmission vehicle according to claim 8, wherein the bushing is soft-coupled between the rotating shaft and a center opening provided in the disk wheel.

10. The eccentric power transmission vehicle according to claim 9, wherein the rotating shaft that guides the pushing in the axial direction is integrally formed with the support body. '

11. The eccentric power transmission vehicle according to claim 9 or 10, wherein the support is hard-coupled to the disk wheel.

12. The support and the circular wheel are provided with guide means for enabling the disk wheel to move only in a single sliding direction along the support. An eccentric power transmission vehicle according to claim 11.

13. The eccentric power according to claim 12, wherein the guide means comprises an elongated hole formed in the disc wheel, and a guide bolt that passes through the elongated hole and engages with the support. Transmission car.

14. The bushing has a shape of a cap to cover the free end of the rotating shaft, and the closed end has a single winding means screwed in the thrust direction with the rotating shaft. 11. The power transmission vehicle as set forth in claim 10, wherein

15. The power transmission vehicle as claimed in claim 14, wherein said pushing has a cap-shaped inner and outer wall both formed in a cylindrical shape.

16. The eccentric power transmission vehicle according to claim 14, wherein said pushing is formed such that one of a cap-shaped inner wall and an outer wall is formed in a tapered shape.

17. The eccentric power transmission according to claim 4, wherein said support is softly coupled so as to be rotatable independently of said rotary shaft.

18. The above-mentioned pushing is hard-connected between the rotating shaft and a center opening provided in the disk wheel, and furthermore, hard-bonded between the support and the wheel. An eccentric power transmission vehicle according to range 17 頊.

19. The eccentric power according to claim 18, wherein the pushing has a minimum thickness of the inner and outer walls that is equal to or greater than a gap required for removing the belt from the circular wheel. Transmission car. '

20. In the above-mentioned pushing, one of the inner and outer walls is tapered. The depth of the taper is the depth required for the connection between the pulley and the belt to be transferred between the hard connection and the soft connection. The eccentric power transmission vehicle according to claim 19, wherein the power transmission vehicle is an eccentric power transmission vehicle.

21. The eccentric power transmission vehicle according to claim 20, wherein the span of the sliding surface of the support is larger than the minimum inner diameter of the taper of the disk wheel.

22. The support and the disk wheel are provided with a falling-off preventing means for preventing the disk wheel from separating from the support when the bushing is released from the disk wheel. The eccentric power transmission vehicle according to claim 4, wherein

23. The rotating shaft is supported on the rain side of the disc wheel on the rainy side, and the thickness of the bushing is larger than the thickness of the bushing between the supporting wheel on the other flat side of the disc wheel and the disc wheel. The eccentric power transmission vehicle according to claim 4, wherein an interval is provided.

24. The eccentric power transmission vehicle according to claim 7, wherein an inner ring of the bearing on the other flat surface side of the circular wheel is press-fitted into the pushing and supported via the pushing.

25. In the above-mentioned pushing, when the inside of the support is moved in the axial direction by the screw hoisting means, an interval at which the belt can pass between the pushing and the tip of the free end of the rotating shaft is provided. The eccentric power transmission vehicle according to claim 24, comprising: -