JPH0354873Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is applicable to flywheels, clutch disks,
This invention relates to a centering jig for clutch structural parts, which is used when assembling clutch structural parts such as a clutch cover, and is used to assemble the clutch structural parts so that they are aligned on the same center.

[Prior art] Clutches used to transmit and detransmit power from automobile engines often wear out the clutch disk pads, damage the pad pressure blades, etc. during use, and are often disassembled during vehicle inspections or periodic inspections. Each structural component must be inspected or replaced. Replacement of clutch structural parts includes replacing the clutch disk, replacing the bearing located in the center hole of the flywheel, and replacing the clutch cover.
The replaced parts are assembled together. When assembling and connecting the clutch structural parts, it is necessary to align each clutch structural part with the same center. Therefore, these tasks include
Conventionally, a jig for centering clutch structural parts as shown in FIG. 12 or 14 has been used.

Figure 10 is a sectional view showing how the flywheel and clutch disk are assembled using a conventional centering jig for FR vehicles, and Figure 11 is a cross-sectional view showing how the flywheel and clutch disk are assembled using a conventional centering jig for FF vehicles. 12th cross-sectional view showing the assembled state of the clutch cover and the clutch cover.
The figure shows a side view of the centering jig for FR cars, Figure 13 is a side view showing the disassembled state of the centering jig for FR cars, and Figure 14 shows the side view of the centering jig for FF cars. FIG. 15 is a side view showing the disassembled state of the centering jig for a front-wheel drive vehicle.

Centering jig 10 for FR vehicles shown in Fig. 12
1 is a longitudinal base body 1 having a gripping part 11 at its base end.
2. The base body 12 has a connecting shaft 13 on the tip side.
A first threaded portion 14 is formed on the distal end side of the coupling shaft 13, and a second threaded portion 15 is formed on the proximal end side (see Fig. 13). A threaded portion 17 of the fixing ring 16 is screwed into the second screwed portion 15 . Further, a clutch disk attachment 18 is attached to the distal end side of the second threaded portion 15 to which the fixing ring 16 is threaded, so as to be inserted over the coupling shaft 13 . The clutch disk attachment 18 is provided with a large diameter portion 19 and a small diameter portion 20, respectively. Connection shaft 1 with clutch disc attachment 18 attached
A collar 21 is fitted onto the distal end of the collar 3, and a screw hole 23 of an attachment 22 for a pilot bearing is screwed into the first threaded portion 14. That is,
The clutch disk attachment 18 and the collar 21 which are inserted into the coupling shaft 13 are attached to the fixing ring 1.
6 and attachment 2 for pilot bearing
It is integrated into the base body 12 while being sandwiched between the two (see FIG. 12).

The centering jig 10 for FR vehicles is assembled by aligning the disassembled flywheel 24 and clutch disk 25 on the same center as shown in FIG. 10. For assembly, the jig 10 is first inserted into the center hole 26 of the clutch disk 25 in the direction of arrow A, and the inner diameter portion of the center hole 26 is fitted into the small diameter portion 20 of the clutch disk attachment 18. Since the inner diameter W1 of the center hole 26 differs depending on the clutch manufacturer and vehicle model, the clutch disk attachment 18, which is provided with a small diameter portion 20 with an outer diameter corresponding to the inner diameter W1 of the center hole 26, is attached to the coupling shaft 13 of the jig 10 in advance. extrapolate to The clutch disk 2 is attached to the small diameter portion 20 of the clutch disk attachment 18.
When the center hole 26 of No. 5 is fitted, the clutch disk 2
The center of 5 will correspond.

Next, the pilot bearing attachment 22 provided at the tip of the jig 10 is inserted and fitted into the inner diameter portion of the pilot bearing 28 disposed in the center hole 27 of the flywheel 24. Since the inner diameter W2 of this pilot bearing 28 also differs depending on the clutch manufacturer and vehicle model, an attachment 22 having an outer diameter corresponding to each inner diameter W2 is screwed onto the first threaded portion 14 in advance. As a result, by inserting the attachment 22 into the pilot bearing 28, the central axis B of the base body 12 of the jig 10 corresponds to the central axis P of the clutch.

As described above, according to the jig 10, by inserting the pilot bearing attachment 22 (first setting part) into the inner diameter part of the pilot bearing 28, the center axis B of the base body 12 of the jig 10 can be aligned with the center of the clutch. It becomes possible to set and position on the axis P. At the same time, by inserting the small diameter portion 20 (second setting portion) of the clutch disk attachment 18 into the center hole 26 of the clutch disk 25, the center of the clutch disk 25 is aligned with the center axis P of the clutch.
It becomes possible to set and position the upper part. Therefore, the flywheel 24 and clutch disk 2
In this state, the clutch disk 25 can be integrally supported with respect to the flywheel 24, and each clutch structural component can be assembled in a state in which they are centered relative to each other. It becomes possible.

On the other hand, the centering jig 30 for FF vehicles shown in FIG. It is constructed by attaching a taper attachment 32 and further inserting a clutch disk attachment 33 onto the coupling shaft 13 on the distal end side of the taper attachment 32 (see FIG. 15).
Further, a threaded portion 35 of the cap 34 is screwed into the first screwed portion 14 . Taper attachment 32
is attached to the base body 12 by screwing the threaded portion 36 into the second threaded portion 15 . In addition, the coupling shaft 13
Clutch disk attachment 3 extrapolated to
3 is a taper attachment 32 and a cap 34
It is integrated into the base body 12 while being sandwiched therebetween (see FIG. 14).

The centering jig 30 for FF vehicles is assembled by aligning the disassembled clutch disk 37 and clutch cover 38 on the same center as shown in FIG. 11. To assemble, first insert the jig 30 into the inner diameter part of the pad pressure blade 39 of the clutch cover 38 in the direction of arrow A (see the two-dot chain line C in FIG. The inner diameter portion of the pad pressure blade 39 is brought into contact with the inner diameter portion of the pad pressure blade 39. Padded presser blade 3
The inner diameter W3 of the clutch 9 varies depending on the clutch manufacturer and vehicle model, and also varies depending on the pressure applied in the direction of arrow A. Therefore, by inserting the jig 30 in the direction of arrow A until the inner diameter part of the pad pressure blade 39 and the entire circumference of the tapered part 31 come into contact with each other, the center axis of the base body 12 of the jig 30 can be adjusted. The center of the clutch cover 38 corresponds to B.

Next, the tip of the jig 30 is inserted in the direction of arrow A into the center hole 40 of the clutch disk 37 whose center is located on the central axis P of the clutch. As a result, the clutch disc attachment 33 is inserted and fitted into the inner diameter of the center hole 40. Since the inner diameter W4 of this center hole 40 also differs depending on the clutch manufacturer and vehicle model, the clutch disc attachment 33 corresponding to each inner diameter W4 is installed in advance on the coupling shaft 1.
Extrapolate to 3. As a result, by inserting the clutch disk attachment 33 into the center hole 40 of the clutch disk 37, the center axis P of the clutch can be adjusted.
In contrast, the central axis B of the base body 12 of the jig 30 corresponds.

As described above, according to the jig 30, by inserting the clutch disk attachment 33 (first setting part) into the center hole of the clutch disk 37, the center axis B of the base body 12 of the jig 30 can be adjusted to the center of the clutch. It becomes possible to set and position on the axis P.
At the same time, the taper portion 31 of the taper attachment 32
By inserting the (second setting part) into the inner diameter part of the pad pressure blade 39 of the clutch cover 38 and making contact with it, it becomes possible to set and position the center of the clutch cover 38 on the central axis P of the clutch. . Therefore, it is possible to arrange the clutch disk 37 and the clutch cover 38 in parallel with each other on the same center, and by connecting the clutch cover 37 and the flywheel 24 and other structural parts in this state, the respective clutch structures can be adjusted. The parts will be assembled in a mutually centered state.

[Problems to be solved by the invention] However, each of the above centering jigs 10 and 3
0, the centering jig 10 for FR vehicles is a clutch disk having a small diameter portion 20 of various diameters depending on the manufacturer, vehicle model, etc., and the inner diameter W1 of the center hole 26 of the clutch disk 25. Attachments 18 had to be prepared in advance (usually more than 10 types), and the work of selecting each of these clutch disk attachments 18 and attaching them to the coupling shaft 13 was considered troublesome.

On the other hand, in the case of the centering jig 30 for FF vehicles, the taper part 31 of the taper attachment 32 is inserted into the inner diameter part of the pad pressure blade 39 to center the clutch cover 38. For example, two people had to work together to bolt the clutch cover 38 to the flywheel 24. That is, one worker must press the jig 30 in the direction of arrow A so that the tapered part 31 and the inner diameter part of the pad pressure blade 39 come into contact (see FIG. 11). In addition, another worker had to bolt the clutch cover 38 to the flywheel 24 in the centered state. This type of work required a worker to crawl into the bottom of the vehicle, and it was considered inefficient for two workers to work in such a narrow space. Further, even when the tapered portion 31 is inserted into the inner diameter portion of the pad pressure blade 39 and is brought into contact with the pad pressure blade 39, there is a possibility that the outer side of the clutch cover 38 may be displaced in the direction of the arrow D. In this way, when the clutch cover 38 is slightly misaligned and the clutch is assembled, the pressing force of each pad pressure blade 39 will be different, which may cause uneven wear on the disk pad or damage caused by long-term use. The clutch connection
There was a risk that an abnormality would occur in the release action.

Each of the centering jigs 10 and 30 has a longitudinal base body 12 having a gripping portion 11 and a connecting shaft 13.
Since each attachment is attached to the clutch, the direction of the center axis of the clutch (P direction)
It was considered to be long and difficult to handle. Particularly in FF vehicles with horizontal engines, the wheel house is located at the position shown by the two-dot chain line E (see Figure 11), and when centering the wheel house, insert the jig 30 diagonally as shown by the arrow F. However, since the tapered portion 31 must be brought into contact with the inner diameter portion of the pad pressure blade 39, the workability is poor.

Furthermore, the conventional centering jigs 10 and 30 are
Since the configurations are different for FR and FF vehicles, there has been a desire among maintenance personnel to develop a jig that can be used for both.

Furthermore, there has been a clutch disk centering jig shown in Japanese Utility Model Application No. 120786/1986. This jig includes three abutment plates that expand and contract in diameter in the radial direction and abut against internal splines of the clutch disk. That is, the guide arm provided on the proximal end side of the contact plate slides on a tapered conical shaft along the axial direction of the clutch, and by adjusting and moving this shaft in the axial direction of the clutch, the guide arm is brought into contact with a conical shaft that is tapered along the axial direction of the clutch. The contact plate was expanded and contracted in diameter in the radial direction.

However, in this centering jig, the guide arm of the contact plate slides against a long shaft that is tapered along the clutch axis direction, and the movement of the contact plate in the expansion/reduction direction is controlled. As a result, like the centering jigs 10 and 30 described above, the centering jigs are long in the direction of the center axis of the clutch, making them difficult to handle. In other words, even with this centering jig,
When disassembling and reassembling the clutch of a horizontally mounted engine in a FF vehicle, there is a risk that it may interfere with parts such as the flywheel because it is long in the axial direction.

This invention is compatible with both FR and FF vehicles, does not require a large number of components, and is highly workable.
To provide a centering jig for clutch structural parts with which even one worker can easily and accurately center each clutch structural part and assemble the clutch.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a base body disposed along the central axis direction of the clutch, and a base body provided at the distal end of the base body, with a center portion of the clutch. A first setting for positioning the center of the base body on the center axis of the clutch by being inserted into the inner diameter of the center hole of the flywheel or the inner diameter of the center hole of the clutch disk, which is arranged correspondingly on the center axis. Department and
provided at the base end of the base body, and when the first setting part is inserted into the center hole of the flywheel, the first setting part is inserted into the inner diameter part of the center hole of the clutch disk; a second setting part which is inserted into the inner diameter part of the pad pressure vane of the clutch cover and sets and positions the center of the clutch disk or the clutch cover on the center axis of the clutch when In the centering jig for structural parts, the second setting part is rotatably supported on the base by a rotary plate having a scroll-shaped uneven part on one side, and a support supported by the base, It is provided with a concavo-convex portion that is positioned and supported at each position in the circumferential direction with respect to the base body and engages with the concave-convex portion of the rotary plate, and when the rotary plate is rotated, the base body is positioned and supported at each position in the circumferential direction. It is constructed of at least three pawls that can expand or contract in diameter and can come into contact with the inner diameter of the center hole of the clutch disk or the inner diameter of the pad pressure blade of the clutch cover.

[Function] According to the present invention, the second setting part is rotatably supported with respect to the base body, and the rotary plate having a scroll-shaped uneven portion on one side and the support body supported by the base body are used to control the second setting part against the base body. It is provided with an uneven part that is positioned and supported at each circumferential position and engages with the uneven part of the rotating plate, and by rotating the rotating plate,
At least three members whose diameters expand or contract in the radial direction at the same distance from each other with respect to the center of the base body, and which are capable of coming into contact with the inner diameter of the center hole of the clutch disk or the inner diameter of the pad pressure vane of the clutch cover. Since it is composed of a book claw body, in the case of FR cars,
With the first setting part inserted into the center hole of the flywheel, if each pawl is expanded or contracted in diameter and brought into contact with the inner diameter of the center hole of the clutch disk, the center of the flywheel and clutch disk can be adjusted. It becomes possible to easily and accurately set them on the same center. Also
In the case of a FF vehicle, with the first setting part inserted into the center hole of the clutch disc, each pawl is expanded or contracted in diameter so that it touches the inner diameter part of the pad pressure blade of the clutch cover. If they are brought into contact with each other, the centers of the clutch disk and clutch cover can be easily and precisely set on the same axis.

At this time, the expansion and contraction of the diameter of each claw body in the radial direction is performed by rotating a rotary plate equipped with a scroll-shaped uneven portion, and the diameter of each claw body is expanded through the uneven portion of the claw body that engages with this uneven portion. Each claw body will be operated. Therefore, the second setting part only needs to be the thickness of the rotary plate and the length of the claw body on the central axis of the clutch, making the entire centering jig more compact and improving ease of handling. .

As described above, the centering jig for clutch structural parts according to the present invention can easily accommodate the inner diameter of the center hole of the clutch disk or the inner diameter of the pad pressure blade, which differs depending on the manufacturer, vehicle model, etc. In addition, since the clutch can be short in the direction of the center axis, there is no interference between the jig and parts such as the flywheel, and one worker can easily disassemble the clutch even in a narrow space at the bottom of the car body. , can perform assembly work.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a perspective view of a centering jig for a clutch structural component according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is an exploded state of the centering jig. FIG. 4 is a perspective view showing how each clutch structural part of an FR vehicle is assembled using a centering jig, FIG. 7 is a sectional view of the same, FIG. 8A is a front view showing the clutch cover for a FF vehicle in an exploded state, and FIG. 8B is the same. FIG. 9A is a front view showing the clutch cover for a front-wheel drive vehicle in an assembled state, and FIG. 9B is a longitudinal sectional view thereof.

The centering jig 50 for the clutch structural component has a cylindrical support 52 around the axis of the base shaft 51 (base body).
(See Figure 1). The base shaft 51 has a grip portion 53 at its base end, and a male threaded portion 54 at its distal end (see FIG. 3). A cylindrical attachment 55 having various outer diameters W5 can be attached to the tip of the base shaft 51. To attach the attachment 55, attach the female threaded portion 56 formed on the attachment 55 to the male threaded portion 54 of the base shaft 51.
This is done by screwing the

The cylindrical support 52 has a rotating handle 57.
(rotating body) is installed integrally. The rotary handle 57 is provided with an insertion hole 58 for the base shaft 51 at its center. A scroll-shaped protrusion 59 (unevenness) is formed on the surface of the rotating handle 57 facing the support body 52 (see FIG. 3). In addition, the rotating handle 5
7, on the outer periphery of the surface facing the support body 52,
A stepped portion 60 is formed.

On the other hand, an insertion hole 61 for the base shaft 51 is also formed in the center of the support body 52 . The rotating handle 57 has a stepped portion 60
into the recess 62 formed in the support 52,
The rotary handle 57 is integrated by inserting the insertion hole 58 of the rotating handle 57 into the rim portion 63 formed on the support body 52 (see FIG. 2). Rotating handle 57
A ring nut 64 is attached to the support body 52 formed by integrating the two. The ring nut 64 is installed by screwing a female threaded portion 66 formed on the ring nut 64 into a male threaded portion 65 formed on the rim portion 63 . Slit 6 in ring nut 64
7 is formed, and the ring nut 64 attached to the rim portion 63 has a set screw 68 in the slit 67.
are screwed together. When the set screw 68 is screwed together, the gap between the slits 67 is narrowed, and the male threaded portion 65 and the female threaded portion 66 are firmly engaged. As a result, the rotating handle 57 is attached to the support body 52 without detaching from it (see FIG. 2).

In the centering jig 50, three elongated holes 69 are formed in the end surface on the tip side of the support body 52. Each elongated hole 69 penetrates the front and back surfaces of the support body 52 similarly to the insertion hole 61 of the support body 52, and extends in the radial direction with respect to the center of the insertion hole 61. Each long hole 6
9 are spaced apart from each other by 120 degrees with respect to the center of the support 52. Guide grooves 70 extending in the radial direction are formed on both side surfaces of the elongated hole 69 .

A holder 71 is inserted into the elongated hole 69 as shown by arrow G in FIG. In the holder 71,
Convex portions 72 that fit into the guide grooves 70 of the elongated hole 69 are formed on both sides. Convex portion 72 in guide groove 70
The holder 71 in which the holder 71 is inserted has a plurality of grooves 73 (uneven portions) on the back side. Further, the front side of the holder 71 is provided with a claw attachment portion 74, and a screw hole 75 is formed in the attachment portion 74.
A long claw body 76A and a short claw body 76B are each replaceably attachable to the mounting portion 74 (see FIG. 3). Each of the claw bodies 76A, 76B is attached by inserting a mounting screw 77 into the hole 78 of the claw body 76A, 76B, and then screwing the mounting screw 77 into the screw hole 75. In addition, holder 71
The concave groove 73 on the back side is fitted with the protrusion 59 formed on the front side of the rotary handle 57 when the rotary handle 57 is attached to the support body 52 in advance (the second
(see figure).

Thus, as shown in FIG. 1 or 2,
The centering jig 50 for the clutch structural parts will be assembled. Centering jig 5 in assembled state
0, the mounting positions of the holders 71 are set so that the positions of the claw bodies 76A or 76B mounted on each holder 71 are at the same distance T1 with respect to the central axis J of the base shaft 51 (see FIG. 2). ). In addition, the assembled jig 50 has the rotary handle 57 indicated by the arrow θ
By rotating in the direction, each holder 71 can be expanded or contracted in the radial direction along the guide groove 70. That is, by rotating the rotary handle 57, the scroll-shaped protrusion 59 and the groove 7 are rotated.
3 are in sliding contact with each other, thereby making it possible to move each holder 71 along the elongated hole 69 in an interlocked manner. As a result, the claw body 76A or 76B attached to each holder 71 is moved along the central axis J of the base shaft 51.
On the other hand, it becomes possible to expand or contract the diameter with the same interval T1.

Centering jig 5 formed in this way
0 allows assembly of the flywheel 24 and clutch disk 25 in an FR vehicle in a state where they are aligned on the same center (see FIGS. 4 and 5). The assembly is
The long claw body 76A is attached to the attachment part 74 of the holder 71, and first the center hole 26 of the clutch disk 24 is inserted.
The base shaft 51 of the jig 50 is inserted in the direction of arrow A, and the three claw bodies 76A in a reduced diameter state are further inserted into the inner diameter portion of the center hole 26. Next, the rotation handle 57 is rotated in the direction of arrow K while holding and fixing the outer peripheral portion of the support body 52. Then, a scroll-shaped protrusion 59
The concave grooves 73 come into sliding contact with each other, and each claw body 76A expands in the radial direction in an interlocking manner. When each claw body 76A to be expanded comes into contact with the inner diameter part of the center hole 26 as shown by the two-dot chain line L in FIG. The center of will be set and positioned. That is, the inner diameter W1 of the center hole 26 of the clutch disk 25 varies depending on the clutch manufacturer, vehicle model, etc., and by abutting each pawl body 76A with the center hole 26 having such a different inner diameter W1, various It becomes possible to center the clutch disk 25 of various types. At this time, the claw body 76A is aligned with the axis J of the base shaft 51.
Since the claw body 76A and the inner diameter part of the center hole 26 are in surface contact with each other, accurate centering is possible.

Next, the attachment 55 attached to the tip of the base shaft 51 is inserted and fitted into the inner diameter part of the pilot bearing 28 disposed in the center hole 27 of the flywheel 24 attached to the engine main body 79 side. The inner diameter W2 of this pilot bearing 28
Since this differs depending on the clutch manufacturer and vehicle model, an attachment 55 having an outer diameter W5 corresponding to each inner diameter W2 is screwed onto the male threaded portion 54 at the tip of the base shaft 51 in advance. As a result, by inserting the attachment 55 into the pilot bearing 28,
The base axis 5 of the jig 50 is
1 corresponds to the central axis J.

In this way, according to the jig 50, the base shaft 51
Attachment 55 (first
By inserting the setting part) into the inner diameter part of the pilot bearing 28, the central axis J of the base shaft 51 of the jig 50 can be adjusted.
can be set and positioned on the central axis P of the clutch. At the same time, each pawl body 76A (second setting part) is attached to the inner diameter part of the center hole 26 of the clutch disc 25.
By expanding and touching the clutch disk 2,
5 can be set and positioned on the center axis P of the clutch. Therefore, it becomes possible to arrange the flywheel 24 and the clutch disk 25 side by side on the same center, and in this state, the clutch disk 25
It is possible to assemble the clutch structural parts in a state where they are mutually centered.

Clutch disc 2 against flywheel 24
5 is integrally supported, the claw body 76 of the jig 50
If B is reduced in diameter and the attachment 55 is pulled out from the center hole 27 of the flywheel 24,
The jig 50 can now be removed.

On the other hand, the centering jig 50 is used for a clutch disk 37 and a clutch cover 3 in a FF vehicle.
8 can be assembled in a state where they are aligned on the same center (see FIGS. 6 and 7). Assembly is done with holder 71
Attach the short claw body 75B to the attachment portion 74 of the clutch cover 38, and first attach the pad pressure blade 3 of the clutch cover 38.
9, the base shaft 51 of the jig 50 is inserted in the direction of arrow A, and the three claw bodies 76B in a reduced diameter state are further inserted into the inner diameter part. Next, the rotary handle 57 is rotated in the direction of arrow K while holding and fixing the outer peripheral portion of the support body 52 (see FIG. 6). Then, the scroll-shaped protrusion 59 and the groove 73 come into sliding contact, and each claw body 76B
will expand in the radial direction in conjunction with each other. When each claw body 76B to be expanded comes into contact with the inner diameter part of the pad pressure blade 39 as shown by the two-dot chain line M in FIG. , the center of the clutch cover 38 is set and positioned. That is, the inner diameter W3 of the pad pressure blade 39 varies depending on the clutch manufacturer, vehicle model, and pressure deformation applied in the direction of arrow A.
By abutting each claw body 76B on the three parts, it is possible to center various types of clutch covers 38. At this time, since the pawl body 76B is parallel to the axis of the base shaft 51, the pawl body 76B and the inner diameter portion of the pad pressure blade 39 come into surface contact, allowing accurate centering.

Next, the attachment 55 attached to the tip of the base shaft 51 is inserted in the direction of arrow A into the center hole 40 of the clutch disk 37 whose center is disposed on the central axis P of the clutch, and is fitted. This center hole 40
Since the inner diameter W4 of the clutch also differs depending on the clutch manufacturer and vehicle model, attach an attachment 55 with an outer diameter corresponding to each inner diameter W4 to the male threaded portion 54 at the tip of the base shaft 51 in advance.
Screw it together. As a result, attachment 55
By inserting the jig into the center hole 40, the center axis J of the base shaft 51 of the jig 50 corresponds to the center axis P of the clutch.

Furthermore, the clutch cover 38 in a FF vehicle is
The inner diameter of the pad pressure blade 39 is determined in the assembled state with the clutch disk 37 and flywheel 24 (see FIGS. 9A and 9B) and in the disassembled state (see FIGS. 8A and 8B). Make it different. That is, in the disassembled state of the clutch cover 38, the pad pressure blades 39 are in the open state, and the inner diameter is W.
It is expanded to 5. On the other hand, clutch cover 3
8 is integrated into the flywheel 24 using bolts, the pad pressure blade 3
9 is compressed, and the inner diameter is reduced to W6.

For this reason, the pawl body 76B attached to the centering jig 50 of the clutch structural component is formed of, for example, a flexible metal piece having a spring force, and the pad pressure vane 39 of the pawl body 76B is
The abutting portion is curved in the direction of arrow R (see FIG. 3). In addition, the claw body 7 formed in a curved manner
The radius of curvature r1 of R of 6B (see Fig. 3) is the inner diameter W5 of the pad pressure blade 39 shown in Fig. 8A.
The radius of curvature is smaller than the radius of curvature r2. The pawl body 76B thus formed is first inserted into the inner diameter portion of the disassembled pad pressure blade 39, and then the handle 57 is turned to expand the pawl body 76B (see FIG. 8B). Then, the base end of each claw body 76B comes into contact with the tip of the pad pressure blade 39,
The claw body 76B is bent at that portion.

Therefore, the tip side of the claw body 76B with respect to the corresponding pressure portion is bent in the direction of the arrow S (the eighth
(See Figure B). As a result, the centering jig 50
The clutch cover 38 is held against the clutch cover 38. By integrally attaching the clutch cover 38 to the flywheel 24 in this state, the inner diameter of the pad pressure blade 39 is reduced, and at this time, the tip of the claw body 76B, which had been bent in the direction of arrow S, is reversed. (See Figure 9B). In this manner, by forming the claw body 76B from a flexible material, the clutch cover 38 can be kept centered at all times from the disassembled state to the assembled state.

In this way, according to the jig 50, the base shaft 51
Attachment 55 (first
By inserting the setting part) into the inner diameter part of the center hole 40 of the clutch disk 37, it becomes possible to position the center axis J of the base shaft 51 of the jig 50 on the center axis P of the clutch. At the same time, clutch cover 3
The center of the clutch cover 38 is set and positioned on the center axis P of the clutch by expanding and abutting each pawl body 76B (second setting part) on the inner diameter part of the pad pressure blade 39 of No. 8. becomes possible.
Therefore, it is possible to arrange the clutch disk 37 and the clutch cover 38 in parallel with each other on the same center, and by connecting the clutch cover 38 and the flywheel 24 and other structural parts in this state, the respective clutch structures can be adjusted. The parts will be assembled in a mutually centered state.

Next, the operation of the above embodiment will be explained.

According to the above embodiment, the second setting section is connected to the base shaft 51.
(Base body) is composed of three claw bodies 76A or 76B that expand or contract in diameter in the radial direction at the same distance from each other with respect to the central axis J,
In the case of an FR vehicle, the attachment 55 attached to the tip of the base shaft 51 is attached to the flywheel 24.
When the flywheel 24 and the clutch disk 25 are inserted into the inner diameter of the pilot bearing 28, each pawl 76A is expanded and brought into contact with the inner diameter of the center hole 26 of the clutch disk 25, thereby easily aligning the centers of the flywheel 24 and the clutch disk 25. Moreover, it becomes possible to set them accurately on the same center. In addition, in the case of a FF vehicle, the base shaft 51
If the attachment 55 attached to the tip of the clutch disk 37 is inserted into the center hole 40 of the clutch disk 37, and each claw body 76B is expanded and brought into contact with the inner diameter part of the pad pressure blade 39 of the clutch cover 38. ,
It becomes possible to easily and accurately set the centers of the clutch disk 37 and the clutch cover 38 on the same axis.

Here, the second setting portion of the jig 50 includes the claw body 76A,
Since the actuating means of 76B is a mechanism in which the scroll-shaped protrusion 59 and the groove 73 formed in the holder 71 slide into contact, the claw bodies 76A, 76B and the support body 52 are connected to each other as shown at T2 in FIG. The actuating mechanism of the pawls 76A, 76B, which is a combination of the rotary handles 57, can be shortened in the axial direction of the clutch. Therefore, the entire jig 50 can be made compact and its handling properties can be improved. Particularly in the case of FF vehicles with horizontally mounted engines, the clearance between the clutch and the wheel house is short as shown in the conventional figure 11, so this embodiment is short in the axial direction of the clutch and centering the clutch with each pawl 76B. By using the jig 50 according to the above, work efficiency will be improved.

In this way, the centering jig 5 according to this embodiment
0, it can easily accommodate the inner diameter W1 of the center hole 26 of the clutch disc 25 or the inner diameter W3 of the pad pressure blade 39, which differs depending on the manufacturer and car model, and can be easily adapted to the inner diameter W1 of the center hole 26 of the clutch disc 25 or the inner diameter W3 of the pad pressure blade 39, and can be used with various outer diameter dimensions as in the past. Since there is no need to prepare a plurality of clutch disc attachments each having a clutch disc attachment, the number of components can be reduced.

Each claw body 7 expands or contracts in diameter in the radial direction.
6A and 76B into the center hole 2 of the clutch disc 25.
6 or the inner diameter of the pad pressure blade 39 of the clutch cover 38, and the clutch structural parts can be assembled with each other in the corresponding state. As a result, unlike the taper attachment 32 of the conventional jig 30, one worker does not perform centering work and another worker performs assembly work, and only one worker can perform each clutch. Structural parts can be assembled in a centered state, allowing easy work even in narrow spaces such as the bottom of a vehicle body.

Furthermore, as shown by the conventional arrow D in FIG. 9, the pawl body 76B is brought into surface contact with the inner diameter portion of the pad pressure blade 39 of the clutch cover 38 without causing any displacement of the clutch cover 38. (See the two-dot chain line M in FIG. 7), the clutch cover 38 can be assembled with it accurately centered. Therefore, uneven wear may occur on the desk pad,
No abnormal clutch operation occurs. Also
Even in the case of FR vehicles, the claw body 76A is located in the center hole 2.
Since the clutch disk 25 makes surface contact with the inner diameter portion of the clutch disk 25, accurate centering of the clutch disk 25 can be performed.

Moreover, according to the jig 50 according to the present embodiment, the jig 50 can be used for both FR and FF vehicles without replacing the jig attachments (clutch disc attachment and taper attachment) as in the conventional case. becomes possible.

Furthermore, if the pawl body 76B attached to the centering jig 50 is made of a material with spring force and is curved to match the inner diameter W5 of the pad presser blade 39 (direction R in FIG. 3), The jig 50 is held by the clutch cover 38 during the process from the disassembled state to the assembled state, and the clutch cover 38 is always kept centered. Therefore, each clutch structural part in a FF vehicle can be easily assembled by one worker.

Note that in the above embodiment, there are three claw bodies 76A and 76B that expand or contract in diameter, but four
It may be a book or more.

[Effects of the invention] As described above, the centering jig for clutch structural parts according to the invention can be applied to both FR vehicles and FF vehicles, without using a large number of components.
It is highly workable and has the effect that even one worker can easily and accurately center each clutch structural part and assemble the clutch.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a centering jig for a clutch structural component according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is an exploded state of the centering jig. FIG. 4 is a perspective view showing how each clutch structural part of an FR vehicle is assembled using a centering jig, FIG. 7 is a sectional view of the same, FIG. 8A is a front view showing the clutch cover for a FF vehicle in an exploded state, and FIG. 8B is the same. 9A is a front view showing the clutch cover for an FF vehicle in an assembled state, FIG. 9B is a longitudinal sectional view of the same, and FIG. 10 is a front view showing the clutch cover for a FF vehicle in the assembled state. A sectional view showing how the flywheel and clutch disk are assembled. Figure 11 is a sectional view showing how the clutch disc and clutch cover are assembled using a conventional centering jig for FF cars. Side view showing centering jig for car, Figure 13 is FR
A side view showing the disassembled state of the car centering jig,
FIG. 14 is a side view showing a centering jig for FF vehicles, and FIG. 15 is a side view showing an exploded state of the centering jig for FF vehicles. 24... Flywheel, 25, 37... Clutch disk, 26, 27, 40... Center hole, 28... Pilot bearing, 38... Clutch cover, 3
9... Pad pressure blade, 50... Centering jig for clutch structural parts, 51... Base shaft (base body),
55... Attachment (first setting part), 76A,
76B...Claw body (second setting part), P...Center axis of clutch, J...Center axis of base shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] A base body disposed along the central axis direction of the clutch, and a flywheel provided at the tip of the base body with its center portion corresponding to the central axis line of the clutch. a first setting part that is inserted into the inner diameter part of the center hole or the inner diameter part of the center hole of the clutch disk and sets and positions the center of the base body on the central axis of the clutch; When the setting section is inserted into the center hole of the flywheel, the first setting section is inserted into the center hole of the clutch disk, and when the first setting section is inserted into the center hole of the clutch disk, the pad plenum of the clutch cover is inserted. a second setting part that is inserted into the inner diameter part of the shear vane and sets and positions the center of the clutch disk or clutch cover on the center axis of the clutch; The setting section is positioned and supported at each position in the circumferential direction with respect to the base by a rotary plate that is rotatably supported on the base and has a scroll-shaped uneven portion on one side, and a support body supported by the base. and a concavo-convex portion that engages with the concave-convex portion of the rotary plate, and expands or contracts in diameter in the radial direction at the same distance from the center of the base body by rotating the rotary plate,
A centering jig for a clutch structural component, comprising at least three pawls that can come into contact with the inner diameter of a center hole of a clutch disk or the inner diameter of a pad pressure blade of a clutch cover.