JPH04128535U - flexible joint - Google Patents

Abstract

(57) [Summary] [Purpose] To miniaturize the flexible joint itself and improve the positional accuracy of the collar. [Structure] A bracket 2 having connecting pins 3 on both sides is fitted onto a collar 1 connected to a driving shaft side and a driven shaft side, and connecting pins 3 adjacent to each other in adjacent brackets 2, 2, A reinforcing fiber 4 was placed between the two.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to flexible joints, especially those used in power transmission systems such as automobiles. do.

0002

[Conventional technology]

Conventionally, such a flexible joint is disclosed in, for example, Japanese Utility Model Application No. 63-77130. What is described is known.

0003 This product has multiple collars (in the same publication, ``cylindrical connecting elements'' are arranged in a ring). By winding the elastic cord between adjacent collars, The elastic cords are strung directly between the collars and the It has a structure in which the gender cord is surrounded by an elastic material. and colors adjacent to each other Connect one side to the flange on the drive shaft side, and the other side to the flange on the driven shaft side. I'm trying to fasten it with bolts.

0004

[Problem that the idea aims to solve]

However, in such conventional flexible joints, for one collar, The elastic cord spans between the collar adjacent to the right side and the collar adjacent to the left side. and the elastic cord that spans between the collar and the elastic cord that is wrapped around the and the width required for the collar to wrap both elastic cords, creating a flex joint. There was a problem that the width of the hand itself became larger.

[0005] The purpose of this invention is to solve these conventional problems and to create a compact and highly accurate collar positioning system. Our purpose is to provide flexible joints.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, the flexible joint of the present invention is designed to The collar and the collar connected to the driven shaft side are arranged in an annular manner adjacent to each other, and Each of the collars is provided with locking parts on both sides in the radial direction. An elastic cord is strung between the locking portions of the collar, and the collar and the elastic cord are connected to each other. The cord is surrounded by an elastic body.

[0007]

[Effect]

The flexible joint of the present invention has a flexible joint on both sides of the collar connected to the drive shaft side and the driven shaft side. and between adjacent locking portions in adjacent collars. By spanning the elastic cords, the adjacent elastic cords can be stretched in the circumferential direction of the flexible joint. By shifting the elastic cords to eliminate the overlap of those elastic cords, the flexible bearing itself The width can be reduced to enable miniaturization.

[0008]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0009] In the figure, 1 indicates a total of six rings arranged in a ring at equal intervals of 60° on the same plane. The middle part of the bracket 2 is fitted into each collar 1. Ru. The bracket 2 has connecting pins on both left and right sides of the upper and lower plates 2A and 2B. 3 and 3 are fixed by caulking. Brackets 2, 2 adjacent to each other A reinforcing fiber (elastic cord) 4 is wound between adjacent connecting pins 3, 3. It is spanned over a bridge. Therefore, the connecting pin 3 is used to bridge the reinforcing fibers 4. It is a locking part that locks it. Furthermore, the bracket 2 and reinforcing fibers 4 are , and is integrally surrounded by an annular elastic body 5 made of rubber or the like.

0010 Therefore, the flexible joint configured in this way consists of three flexible joints located at 120° intervals. Collar 1 is bolted to a yoke on the drive shaft side (not shown), and the other three collars are The roller 1 is ready for use by being bolted to a yoke on the driven shaft side (not shown). The rotational torque of the drive shaft is transmitted to the driven shaft.

[0011] By the way, a total of six sets of reinforcing fibers 4 wound between adjacent connecting pins 3, 3 are as follows: Since the flexible joints are shifted in the circumferential direction and do not overlap each other, the connecting pin 3 The length may be any length as long as one set of reinforcing fibers 4 can be wound around it. Therefore, two sets of Compared to conventional flexible joints in which reinforcing fibers overlap, especially the left and right side of the flexible joint in Figure 2 By reducing the width in the direction, the flexible joint itself can be made smaller.

0012 Also, by placing brackets on collar 1 in this way, both sides of collar 1 in the radial direction can be By providing the connecting pin (locking part) 3 in the structure, when surrounding the elastic body 5, When a heat shrinkage force is generated in the reinforcing fiber 4, the heat shrinkage force is applied in the axial direction of the collar 1. It will act evenly from the left and right without shifting, and the color 1 should be tilted. No force is generated. Therefore, the positioning accuracy of the collar 1 becomes high.

[0013] In addition, in order to span the reinforcing fibers 4, there are locking parts located on both sides of the bracket 2. In addition to the connecting pin 3, various configurations can be adopted.In short, reinforcement Any structure may be used as long as it can lock the fibers 4 in order to span them.

[0014] In addition, the bracket 2 has a connecting pin (locking part) 3 only on one side in the radial direction of the collar 1. In this case, one side of the adjacent elastic fibers 4 may be What is necessary is to wind it around the collar 1 and wind the other side around the connecting pin (locking part) 3. difference Furthermore, the bracket 2 may be omitted and the locking portion may be integrally formed on the collar 1.

[0015]

[Effect of the idea]

As explained above, the flexible joint of the present invention is connected to the drive shaft side and the driven shaft side. A locking portion is provided on both radial sides of the collar to be tied, and a locking portion is provided on both sides of the collar to be tied. Since the structure is such that an elastic cord is strung between adjacent locking parts, Shift the elastic cords in the circumferential direction of the flexible joint to prevent the elastic cords from overlapping. Therefore, the width of the flexible bearing itself can be reduced accordingly, making it more compact. be able to.

[Brief explanation of drawings]

FIG. 1 is a half-sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG. 1;

[Explanation of symbols]

1 color 2 Bracket 2A, 2B plate 3 Connecting pin (locking part) 4 Reinforcing fiber (elastic cord) 5 Annular elastic body

Claims (1)

[Scope of utility model registration request] 1. A collar connected to a drive shaft side and a collar connected to a driven shaft side are arranged adjacent to each other in an annular shape, and each of the collars has a locking portion on both sides in a radial direction. A flexible joint, characterized in that an elastic cord is provided between the locking portions of the collars that are adjacent to each other, and the collar and the elastic cord are surrounded by an elastic body.