JP2509453Y2 - Rotational force transmission mechanism - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotational force transmission mechanism.

[0002]

2. Description of the Related Art As a conventional rotational force transmitting mechanism, there is one disclosed in Japanese Utility Model Publication No. 62-15544.
In the rotational force transmission mechanism shown in this figure, two clamp members are provided on a drive plate fixed to a drive shaft of a rotary drive device at intervals so as to sandwich a coupling boss for a driven object. The clamp member is formed with an inclined surface and is movable in the axial direction against the spring force. When the drive shaft of the rotary drive device is rotated, the drive plate integral with the drive plate is rotated, and the connecting boss comes into contact with the first clamp member and pushes the inclined surface thereof, whereby the connecting boss moves to the first position. The first clamp member returns to the initial position by overcoming the clamp member and by the spring force. As a result, the connecting boss is sandwiched between the two clamp members, and the rotational force of the rotary drive device is transmitted to the driven object. By doing so, the rotational force of the motor of the rotary drive device can be transmitted to a driven object such as a torque converter without using fastening means such as bolts.

[0003]

However, in the conventional torque transmission mechanism as described above, the motor of the rotary drive does not always stop at a fixed position, and the driven object also has a constant rotational direction position. Therefore, the operator confirms the positional relationship between the position of the clamp member of the drive plate and the connecting boss of the driven object so that the position of the boss of the driven object and the position of the second clamp member do not match, If the two match, it was necessary to shift the positions. This is because when the boss of the driven object and the second clamp member are in the same position, the driven object cannot be attached to the rotary plate because the axial position of the driven object is retracted. For this reason, there is a problem that it takes time to confirm the positional relationship between the motor shaft position and the driven object, and work for shifting the rotational position of the driven object, for example, which requires a long time for mounting. The present invention aims to solve such problems.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by making two clamp members both axially movable against a spring force. That is, the rotational force transmission mechanism of the present invention is a rotational force transmission mechanism for transmitting rotational force from the rotary drive device (32) to the driven object (28) and is fixed to the drive shaft (34) of the rotary drive device. The driving plate (10) is provided with two clamp members (14) at intervals so as to sandwich the boss (30) for connecting the driven object, and when the driving plate rotates in the predetermined direction, One clamp member located on the side in contact with the connecting boss is movably supported in the axial direction of the connecting boss and receives a force in a direction projecting from the drive plate by the spring (18). The projecting end surface of the member is formed into an inclined surface (22) that is inclined such that the height from the driving plate becomes lower as it goes away from the other clamp member.
The connecting boss can be sandwiched between two clamp members by contacting the inclined surface of one clamp member and passing it while pushing it toward the drive plate against the force of the spring. In another rotational force transmission mechanism, the other clamp member is supported by the drive plate so as to be movable in the axial direction, and a spring (18) for exerting a force in a direction projecting the other clamp member from the drive plate is provided. It is provided. In addition, the protruding side end surface of the other clamp member may be formed as an inclined surface (20) which is inclined so that the height from the drive plate becomes lower as the distance from the one clamp member increases. The reference numerals in parentheses indicate the corresponding members of the embodiment.

[0005]

When the driven object is attached to the rotary drive device, it is assumed that the other clamp member and the connecting boss are aligned with each other. When the driven object is pressed against the rotary drive device in that state, the other clamp member enters the drive plate against the force of the spring, so that the driven object can be attached to the rotary drive device. When the rotary drive device is activated to rotate the drive plate, the connecting boss is disengaged from the end surface of the other clamp member as the drive plate rotates. As a result, the other clamp member is located at a position protruding from the drive plate by the force of the spring. When the drive plate further rotates, the protruding side end surface of one clamp member comes into contact with the connecting boss, whereby one clamp member is pushed. Further, when the drive plate rotates, the connecting boss is sandwiched between both clamp members. Thereby, the driven object is connected to the rotary plate, and the driven object can be rotated by the rotation driving device. By forming an inclined surface opposite to the inclined surface of the one clamp member on the protruding side end surface of the other clamp member, the rotation of the motor of the rotation drive device is opposite to the predetermined direction. In the case of the connection, the connection with the connection boss is possible. Also, a common component can be used as the clamp member.

[0006]

1 to 3 show an embodiment of the present invention. Two sleeves 12 are fixed to the drive plate 10 attached to the drive shaft 34 of the performance tester with a predetermined gap on the outer peripheral side. A slide pin 14 is slidably fitted to each inner diameter portion of the sleeve 12. Shoulders 26 are formed at the lower ends of the slide pins 14 in FIG. 2 so that the slide pins 14 project from the drive plate 10 by a predetermined length. Both slide pins 1
The distance between the four is large enough to hold the connecting boss 30 (shown in phantom in FIG. 1) of the torque converter 28 (see FIG. 3) of the automatic transmission therebetween. Threads are formed on the outer diameter of the sleeve 12, and the caps 16 are screwed into the threads. Springs 18 are arranged in the spaces between the inner surface of the cap 16 and the slide pins 14, respectively. The spring 18 acts so as to push the slide pin 14 upward in FIG. Inclined surfaces 20 and 22 are formed at upper ends of the slide pin 14 in the figure, respectively. Inclined surface 20 and inclined surface 22
The positions of the inclined surfaces are different by 180 degrees from each other, and they are formed to be higher toward the side where the connecting boss is sandwiched. Both slide pins 14 are positioned by a rotation stop mechanism (not shown) so as not to rotate relative to the sleeve 12. The cap 16 and the sleeve 12 are integrated by a screw member 24. Sleeve 12, slide pin 14, cap 16, spring 1
A rotational force transmission mechanism is constituted by 8 and the like. FIG.
In the case of the embodiment shown in (1), the rotational force transmission mechanism is provided at two positions, upper and lower in the figure.

Next, the operation of this embodiment will be described. The automatic transmission is attached to the mounting plate of the performance testing device, and the performance testing device is activated to rotate the drive plate 10 in the direction of arrow A (counterclockwise direction) in FIG. 2, for example. First, in the figure, the inclined surface 22 of the slide pin 14 on the right side contacts the connecting boss 30. As a result, the slide pin 14 on the right side is
By being pushed down against the force of 8, the connecting boss 30 gets over the right slide pin 14. Connecting boss 30
When the vehicle slides over the right slide pin 14, the right slide pin 14 returns to the initial position by the force of the spring 18. The connecting boss 30 is fixed at a position sandwiched by the left and right slide pins 14. Thereby, the drive plate 1
The rotational force of 0 is transmitted to the connecting boss 30. That is,
The connecting boss 30 rotates together with the drive plate 10 while being sandwiched between the left and right slide pins 14. The performance test is performed in this state. After the performance test is completed, the rotation is stopped, and the automatic transmission is removed from the performance test device, that is, the torque converter 28 is moved to the right in FIG. When the automatic transmission is attached to the performance test apparatus, it is assumed that the left slide pin 14 and the connecting boss 30 in the figure are aligned with each other. When the automatic transmission is pressed against the performance testing device in this state, the left slide pin 14 moves into the sleeve 12 against the force of the spring 18, so that the automatic transmission can be attached to the performance testing device. When the drive plate 10 is rotated, for example, in the direction of arrow A (counterclockwise) in FIG. 2 by activating the performance test device, the connecting boss 30 causes the end surface of the slide pin 14 on the left side in the drawing as the drive plate 10 rotates. Get out of. As a result, the left slide pin 14
Is located at a position protruding from the sleeve 12 by the force of the spring 18. After that, in the same manner as above, the connecting boss 3
Since 0 is fixed at the position sandwiched by the left and right slide pins 14 and the torque converter 28 is connected to the drive plate 10, a performance test can be performed. In the description of the above embodiment, the inclined surfaces 20 and 22 are provided on the two slide pins 14, but for example, the inclined surface 20 is not provided on the left slide pin 14 in FIG. It may be a plane orthogonal to the axis center of. This is because the automatic transmission is generally driven in a fixed rotation direction regardless of the model, and the motor of the performance test device is also rotated only in a predetermined rotation direction. However, the provision of the inclined surfaces on both the slide pins as in the above-described embodiment makes it possible to use common parts, and it is also possible to deal with the case where the motor of the performance testing device may rotate in the reverse direction.

[0008]

As described above, according to the present invention,
The drive plate and the driven object can be automatically connected regardless of the relative position between the rotational direction position of the rotary plate of the rotary drive device and the rotational direction position of the driven object. You can do it efficiently.

[Brief description of drawings]

FIG. 1 is a plan view of a driving plate using a torque transmission mechanism of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a diagram in which an automatic transmission (with a torque converter) is attached to the performance testing device.

[Explanation of symbols]

 10 Drive Plate 12 Sleeve 14 Slide Pin (Clamping Member) 16 Cap 18 Spring 20 Slope 22 Slope 28 Torque Converter (Driven Object) 30 Connecting Boss 32 Performance Tester (Rotary Drive) 34 Drive Shaft

Claims (2)

(57) [Scope of utility model registration request] 1. A rotational force transmitting mechanism for transmitting rotational force from a rotary drive device to a driven object, wherein a boss for connecting the driven object is provided on a drive plate fixed to a drive shaft of the rotary drive device. Two clamp members are provided at an interval so that they can be sandwiched, and when the drive plate rotates in a predetermined direction, one clamp member located on the side that comes into contact with the connecting boss first can move in the connecting boss axial direction. Is supported by a spring and receives a force in a direction projecting from the drive plate by a spring, and the protruding end surface of the one clamp member is inclined so that the height from the drive plate becomes lower as the distance from the other clamp member increases. It is formed on an inclined surface, and the connecting boss comes into contact with the inclined surface of one of the clamp members and pushes it against the drive plate side against the force of the spring to pass therethrough, whereby the two clans are connected. In the rotational force transmission mechanism capable of sandwiching the connecting boss between the drive members, the other clamp member is supported by the drive plate so as to be movable in the axial direction, and the other clamp member is protruded from the drive plate. A rotating force transmitting mechanism, characterized in that a spring for exerting a force on the is provided. 2. The rotational force transmission according to claim 1, wherein the protruding end surface of the other clamp member is formed into an inclined surface so that the height from the drive plate becomes lower as the distance from the one clamp member increases. mechanism.