JPH04143110A - Fastening structure of link to wheel supporting part - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a fastening structure between a wheel support and a link in an automobile suspension.

Conventional technology The suspension of an automobile, for example, the rear suspension, has a structure as shown in Figure 2 (Japanese Patent Laid-Open No. 59-1
(See Publication No. 43706).

In FIG. 2, 1 is a rear suspension member, 2 is a wheel support portion that rotatably supports the rear wheel, IO is a strut, and 11 is a radius link.

Reference numeral 3 denotes two pairs of links called lateral links, which are arranged parallel to each other and connect the wheel support portion 2 to the rear suspension member 1 so as to be swingable in the vertical and horizontal directions.

FIG. 3 is a sectional view showing a fastening structure between the wheel support portion 2 and the lateral link 3.

In FIG. 3, 4 is a bushing outer cylinder formed at the tip of the lateral link 3, and 6 is a cylindrical elastic body, and this cylindrical elastic body 6 is arranged on the inner surface of the bushing outer cylinder 4.

5 is a bushing inner cylinder, and this bushing inner cylinder 5 is arranged on the inner surface side of the cylindrical elastic body 6. A fastening bolt 7 is inserted between the bush inner cylinder 5 and the hole 12 formed in the wheel support portion 2.
is inserted. Then, a nut 8 is screwed onto this fastening bolt 7, and the lateral link 3 is fastened to the wheel support portion 2.

Problems to be Solved by the Invention By the way, gaps inevitably occur between the fastening bolt 7 and the inner circumferential surface of the bush inner cylinder 5 and between the fastening bolt 7 and the inner circumferential surface of the hole 12 due to manufacturing reasons. For this reason,
In the conventional fastening structure between the wheel support part 2 and the lateral link 3, when a force is applied in the longitudinal direction of the lateral link 3, the bush inner cylinder 5 moves relative to the wheel support part 2 by the amount of the gear mentioned above. This has the disadvantage of causing a change in alignment.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a fastening structure between a wheel support part of an automobile and a link, in which a link whose one end is supported by a suspension member of the car is fastened to a wheel support part. A bushing outer cylindrical portion is formed at the other end of the link, one end of the bushing inner cylindrical portion disposed within the bushing outer cylindrical portion is a substantially conical end, and the conical end is formed on the wheel support portion. It is characterized by forming a conical recess that fits into the conical recess.

The conical end of the inner cylindrical portion of the working bushing and the conical recess of the wheel support are tightly fitted together without any gap therebetween. Therefore, even if a force is applied in the longitudinal direction of the link, the inner cylinder part of the bushing will not shift relative to the wheel support part, and no change in alignment will occur.

Embodiment FIG. 1 is a sectional view of a fastening structure between a wheel support portion and a link, which is an embodiment of the present invention.

In FIG. 1, the outer bushing cylinder 4, the cylindrical elastic body 6, the fastening bolt 7, and the nut 8 have the same shapes as in the example shown in FIG. The shape of the hole 13 is different from the shape of the bush inner cylinder 5 and the hole I2 in the example shown in FIG.

In other words, the end of the bush inner cylinder 9 on the wheel support portion 2 side is a conical end 9a. Further, the diameter of the hole 13 gradually increases from near the central portion in the thickness direction of the wheel support portion 2 toward the right in the figure, forming a conical recess 13a.

Then, the conical end 9a of the bush inner cylinder 9 is inserted and fitted into the conical recess 13g. In this case, the conical end portion 9a and the conical recess 13a are closely coupled to each other without creating a gap therebetween.

Therefore, even if a force is applied in the longitudinal direction of the lateral link 3, the bushing inner cylinder 9 will not shift relative to the wheel support part 2, and no alignment change will occur, so that the lateral link 3 and the wheel support part 2 can be more securely connected.

In addition, when the lateral link 3 and the wheel support part 2 are fastened together, the conical end 9a is guided to the conical recess 13a by tightening the bolt 7 and nut 8, so that it can be easily fixed in an accurate position. I can do it.

Effects of the Invention As described above, according to the present invention, in a structure for connecting a link to a wheel support portion of an automobile, in which a link, one end of which is supported by a suspension member of the automobile, is fastened to the wheel support portion, A bushing outer cylindrical part is formed at the other end, and one end of the bushing inner cylindrical part disposed inside the bushing outer cylindrical part has a substantially conical end, and the conical end fits into the wheel support part. Since the conical recess is formed, even if force is applied in the longitudinal direction of the link, the inner cylinder of the bushing will not shift relative to the wheel support, and alignment changes will not occur, so the link and wheel support It is possible to make the conclusion more reliable.

Also, when tightening the link and the wheel support part,
Since the conical end portion is guided in the conical recess, the positioning of the link and the wheel support can be made easy and accurate.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a schematic perspective view of a rear suspension, and FIG. 3 is a sectional view of a conventional fastening structure between a wheel support portion and a lateral link. 1... Suspension member, 2... Wheel support part,
3... Lateral link, 4... Bush outer cylinder, 9...
... Bush inner cylinder, 9a... Conical end, 13...
Hole, 13a...conical recess. 2 Two Wheeled Great Chair Egg 3: I5 Chiral Link 4: Futstadt Commercial 6: Bullet 7: #M; Dort 8: Putt 9: Futushi Shimauchi Gang

Claims (1)

[Claims] (1) In a fastening structure between a wheel support part of an automobile and a link, in which a link whose one end is supported by a suspension member of a car is fastened to a wheel support part, a bush outer cylinder part is formed at the other end of the link, One end of the bush inner cylindrical part disposed within the bush outer cylindrical part is a substantially conical end, and the wheel support part is formed with a conical recess that fits into the conical end. A fastening structure between an automobile wheel support and a link.