JPH0570866U - Work holding device - Google Patents

Abstract

(57) [Summary] [Purpose] Inexpensive and surely holds the work. [Structure] Work pieces (W1 and W) that are integrally formed by bending an elastic member and are arranged on the outermost sides, respectively.
2, a pair of abutting portions (20b1, abutting against the end surface of W3)
20b2) and a pair of contact portions (20b1, 20b)
2) A connecting part (20a) for connecting the one ends to each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work holding device that holds a plurality of works in a state of being superposed on each other.

[0002]

[Prior Art]

 For example, a synchronizer hub applied to a transmission is press-fitted to an input shaft or an output shaft with a synchronizer sleeve splined around its outer periphery and concentric synchronizer rings at both ends thereof.

Therefore, conventionally, as shown in FIGS. 5 and 6, a pair of work holding devices 10 and 10 are applied, and the synchronizer hub W1, the synchronizer sleeve W2, and the pair of synchronizer rings W3 and W3 are superposed in advance. By keeping it in this state, it is possible to facilitate press-fitting work to the input shaft and output shaft (not shown).

The work holding device 10 is formed into a U-shaped cross section having a recess 11 on the inner peripheral surface thereof by subjecting a material having a semi-arc shape to cutting. By covering the outer peripheral surface and both end surfaces of the synchronizer hub W1, the synchronizer sleeve W2, and the pair of synchronizer rings W3, W3 which are in a state of being superposed on each other by the three-sided wall portions 10a, 10b, 10c which constitute them, they are separated from each other. The movement in the direction of movement is restricted.

[0005]

[Problems to be solved by the device]

 By the way, since the above-mentioned conventional work holding device 10 is formed by cutting the material as described above, the working work is complicated, the working time is long, and the manufacturing cost is remarkably increased. It

In order to cover the outer peripheral surfaces and both end surfaces of the synchronizer hub W1, the synchronizer sleeve W2 and the pair of synchronizer rings W3, W3 by the three wall portions 10a, 10b, 10c, that is, in the recess 11 In order to insert these works W1, W2, W3, W3 into the work, a clearance c must be provided between the work W1, W2, W3, W3. If the holding force is applied, the holding devices 10, 10 may easily fall off the works W1, W2, W3, W3.

In view of the above situation, an object of the present invention is to provide a work holding device that is inexpensive and can hold a work reliably.

[0008]

[Means for Solving the Problems]

 The work holding device according to the present invention is a work holding device for holding a plurality of works in a state of being stacked on each other. The work holding device is integrally formed by bending an elastic member, and is arranged at the outermost position. A pair of abutting portions that abut the end surface of the work, and a connecting portion that connects one end portions of the pair of abutting portions to each other.

[0009]

[Action]

 According to the above configuration, the plurality of works are held in a stacked state by the elastic force of the pair of abutting portions and the connecting portion integrally formed by the elastic member.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment. FIG. 1 conceptually shows a work holding device according to the present invention. As shown in FIG. 4, the holding device 20 illustrated here has a synchronizer sleeve W2 concentrically attached to the outer peripheral region of a synchronizer hub W1 applied to a transmission, and further has synchronizer rings W3 and W3 at both ends thereof. As shown in FIG. 1, it is held in a concentrically mounted state. As shown in FIG. 1, the connecting portion 20a has a rectangular shape, and extends from both end edges of the connecting portion 20a in a direction perpendicular to each other. It has a pair of abutting portions 20b1 and 20b2 arranged in this manner.

The connecting portion 20a has a flat plate shape with a uniform plate thickness, and as shown in FIG. 3, a distance L1 between the end portions where the pair of contact portions 20b1 and 20b2 are arranged. Is the maximum thickness when the above-mentioned synchronizer hub W1, the synchronizer sleeve W2 and the pair of synchronizer rings W3 and W3 are superposed on each other, that is, both ends of the pair of synchronizer rings W3 and W3 which are superposed on the synchronizer hub W1. It has a length that is approximately equal to the face-to-face distance.

As shown in FIG. 2, the abutting portions 20b1 and 20b2 are such that the length L2 extending from the connecting portion 20a overlaps the synchronizer hub W1, the synchronizer sleeve W2, and the pair of synchronizer rings W3 and W3, respectively. The maximum outer diameter in the combined state, that is, shorter than the diameter of the synchronizer sleeve W2 and longer than its half diameter is formed, and its width L3 is formed substantially equal to the straight diameter of the synchronizer sleeve W2. Notches 20c, 20c are provided in the central portion, and a pair of restricting portions 20d, 20d ... Are provided at corresponding portions of the respective side edge portions.

The notches 20c and 20c are U-shaped and open from the position corresponding to the center of the synchronizer sleeve W2 to the tip edges of the abutting portions 20b1 and 20b2, respectively, and the synchronizer rings W3 and W3. The widths L4 and L4 are smaller than the outer diameter of the synchronizer rings W3 and W3 and are larger than the inner diameters of the through holes H3 and H3 formed at the center of the synchronizer rings W3 and W3.

As shown in FIG. 1, the restriction portions 20d, 20d, ... Have a rectangular flat plate shape having a length shorter than a half of the height of the connecting portion 20a, and the contact portions 20b1, The projections are provided so as to be orthogonal to the extending direction of 20b2 and close to the other abutting portions 20b2, 20b1.

It should be noted that lips 20e, 20e are formed at the tip of one contact portion 20b1 and are slightly inclined toward the direction away from the other contact portion 20b2.

In this work holding device 20, the above-mentioned connecting portion 20a, the pair of abutting portions 20b1, 20b2, the regulating portions 20d, 20d ... And the lips 20e, 20e each have a thickness of 1 mm. It is integrally formed by bending a thin metal plate (elastic member) such as (SK5), and the pair of abutting portions 20b1 and 20b2 are elastically expandable with respect to each other. The distance between the tips of the pair of contact portions 20b1 and 20b2 (not including the lips 20e and 20e) is equal to that of the pair of synchronizer rings W3 and W3 in a state of being superposed on the synchronizer hub W1. It is configured to be narrower than the distance between both end surfaces.

In order to hold the synchronizer hub W1, the synchronizer sleeve W2, and the pair of synchronizer rings W3, W3 by the work holding device 20 configured as described above, these are put on top of each other and put in the mounted state. The outer peripheral surface of the synchronizer sleeve W2 contacts the connecting portion 20a and the restricting portions 20d, 20d ... by being inserted between the pair of abutting portions 20b1, 20b2 from the tip end side via the lips 20e, 20e. Just contact them.

In this state, as shown in FIG. 3, the tip portions of the pair of contact portions 20b 1 and 20b 2 are separated from each other as compared with the normal state, and the elastic restoring force of the pair of contact portions 20b 1 and 20b 2 causes the pair of contact portions 20b 1 and 20b 2 to contact each other. The contact portions 20b1 and 20b2 press the end faces of the pair of synchronizer rings W3 and W3, respectively, whereby the pair of synchronizer rings W3 and W3 are held in a state of being pressed against the synchronizer hub W1 and the connecting portion. Since the radial movement of the sleeve W2 with respect to the holding device 20 is restricted by abutting the outer peripheral surface of the synchronizer sleeve W2 with the restricting portions 20a and the restricting portions 20d, 20d, ..., The synchronizer hub W1 and the synchronizer sleeve W2. And a pair of synchronizer rings W3, W3 and the holding device 20 are shaken. Even if a motion is applied, the holding device 20 does not accidentally fall off from the synchronizer hub W1, the synchronizer sleeve W2 and the pair of synchronizer rings W3 and W3.

On the other hand, after the synchronizer hub W1 is press-fitted into the input shaft or the output shaft (not shown) through the notches 20c and 20c formed in the pair of contact portions 20b1 and 20b2, the lip 20e, The holding device 20 can be easily removed from the synchronizer hub W1, the synchronizer sleeve W2, and the pair of synchronizer rings W3, W3 by expanding the pair of contact portions 20b1, 20b2 via 20e.

In the above embodiment, the synchronizer sleeve W2 is concentrically attached to the outer periphery of the synchronizer hub W1 applied to the transmission, and the synchronizer rings W3 and W3 are concentrically attached to both ends of the synchronizer sleeve W2. Although the holding device 20 for holding is shown as an example, the present invention can be applied to hold other works in a state of being superposed on each other. In this case, the work does not necessarily have to be circular. Further, in order to press the synchronizer hub W1 into the shaft, notches 20c and 20c are formed in the abutting portions 20b1 and 20b2. 20c and 20c are not always necessary. Further, although the restricting portions 20d, 20d ... Are provided only on both sides of the pair of abutting portions 20b1, 20b2, the abutting portions are formed so as to match the size of the work, and the tips thereof are also formed. A restriction part may be provided. In this case, since the movement of the work piece with respect to the holding device is completely prevented, it becomes possible to more reliably prevent the holding device from falling off the work piece.

Further, in the above embodiment, the holding device 20 is molded using a thin metal plate, but a non-metallic material such as a resin material may be used as long as it is a member having elasticity.

[0022]

As described above, according to the work holding device of the present invention, since the pair of abutting portions and the connecting portions are respectively formed by the elastic members, the elastic force exerts a force on the work. It is possible to surely hold the superposed state.

Moreover, since the pair of abutting portions and the connecting portions are integrally formed by bending, the working can be performed easily and in a short time, and the manufacturing cost can be increased. Can be suppressed.

[Brief description of drawings]

FIG. 1 is a perspective view conceptually showing a work holding device according to the present invention.

FIG. 2 is a plan view thereof.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an exploded sectional side view conceptually showing a work to which the holding device according to the present invention is applied.

FIG. 5 is a plan view conceptually showing a conventional work holding device.

6 is a sectional view taken along line VI-VI in FIG.

[Explanation of symbols]

 20a Connection part 20b1, 20b2 Contact part W1, W2, W3 Workpiece

Claims (1)

[Scope of utility model registration request] 1. A work holding device for holding a plurality of works in a state of being overlapped with each other, wherein the work is integrally formed by bending an elastic member, and the end faces of the works arranged on the outermost sides are contacted with each other. A work holding device comprising: a pair of abutting portions that are in contact with each other; and a connecting portion that connects one end portions of the pair of abutting portions to each other.