Collision stop for suspension apparatus

A suspension device and stopper technology, applied in the directions of suspension, transportation and packaging, cantilever mounted on a pivot, etc., to achieve the effect of avoiding interference, preventing unpleasant abnormal sounds, and preventing abnormal sounds

Inactive Publication Date: 2006-06-21
SUMITOMO RIKO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The spring seat is an important protective part on the vehicle. Because it requires rust resistance, cationic coating is applied on the surface, and the surface becomes a "smooth" smooth surface. Therefore, the impact stopper acts as a stopper. During compre

Method used

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  • Collision stop for suspension apparatus
  • Collision stop for suspension apparatus
  • Collision stop for suspension apparatus

Examples

Experimental program
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Embodiment Construction

[0045] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0046] exist figure 1 Among them, 10 denotes a shock absorber constituting a vehicle suspension device, which is a main element of a strut suspension device here, 12 denotes a cylinder, and 14 denotes a piston rod protruding upward from the cylinder 12 .

[0047] The upper end of the piston rod 14 is elastically connected to the vehicle body panel 18 through the bearing 15 and the strut support 16 and can rotate around its axis.

[0048] On the other hand, the lower end of the air cylinder 12 is fixed to a knuckle not shown in the figure.

[0049] Therefore, the lower end of the cylinder 12, when operating, rotates and moves integrally with the wheel around the line connecting the ball joint and the upper end of the piston rod, specifically, the center of the bearing 15, and moves in position. The joint connects the steering knuckle and the stee...

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PUM

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Abstract

Provided is a shock stopper made of polyurethane foam for a suspension device, which can prevent the generation of unpleasant abnormal sound caused by friction against a spring seat when the stopper acts. In the impact stopper (46) made of foamed polyurethane that elastically abuts against the cylinder to limit the excessive contraction displacement of the shock absorber when jumping, the large-diameter fitting portion (60) at the upper end and the axial compression The portion between the deformable ring-shaped narrowing portion (48), and the insertion portion (80) in the state of being inserted into the concave fitting portion (44) of the spring seat (42) in the state of compression deformation when the vehicle jumps On the outer peripheral surface, a diameter reduction inducing portion (82) is provided, which has a substantially inverted tapered shape whose outer diameter gradually decreases toward the upper side, and induces a diameter reduction deformation accompanied by compression deformation, and at least at the insertion portion An annular gap for diameter-reducing deformation is formed between the inner peripheral surface (72) of the center hole (47) of (80) and the piston rod.

Description

technical field [0001] The present invention relates to a shock stopper (boundstopper) made of tubular foamed polyurethane used in a vehicle suspension device including a shock absorber and a coil spring as structural elements, and particularly relates to a shock stopper characterized in that it is used to prevent abnormalities. The technical means of sound is the shock limiter. Background technique [0002] Conventionally, in a vehicle suspension device including a shock absorber and a coil spring as structural elements, a shock limiter that contacts the cylinder of the shock absorber when the vehicle bounces and controls the excessive contraction displacement of the shock absorber is used. Bit device. [0003] For example, Patent Document 1 below describes a shock stopper. [0004] This shock stopper has a rubber shock stopper and a foam polyurethane shock stopper. In particular, when the impact stopper is made of the latter foamed polyurethane, it has a higher compress...

Claims

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Application Information

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IPC IPC(8): B60G7/04
Inventor 伊藤达哉西仲秀人林谦一土居司
Owner SUMITOMO RIKO CO LTD
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