Collision stopper for suspension apparatus

A technology of suspension device and limiter, which is applied in the direction of suspension, transportation and packaging, cantilever installed on pivot, etc., to achieve the effect of preventing abnormal sound, preventing unpleasant abnormal sound and avoiding interference

Inactive Publication Date: 2009-04-22
SUMITOMO RIKO CO LTD +1
View PDF5 Cites 0 Cited by
  • 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 compression and deformation, friction occurs against the spring seat, specifically, against the inner peripheral surface of the inverted cup-shaped concave fitting portion, so there is a problem that abnormal sound consisting of stick slip sound is likely to be generated.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Collision stopper for suspension apparatus
  • Collision stopper for suspension apparatus
  • Collision stopper for suspension apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0046] in figure 1 In the figure, 10 denotes a shock absorber that constitutes the main element of a vehicle suspension device, here a strut type suspension device, 12 denotes a cylinder, and 14 denotes a piston rod protruding upward from the cylinder 12.

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

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

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

[0050] That is, in the shock a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

To provide a foamed polyurethane bound stopper for a suspension device, having no unpleasant abnormal sounds due to friction against a spring seat during stopper operation. The foamed polyurethane bound stopper 46 elastically abuts on a cylinder during bound to restrict the excessive contractive displacement of a shock absorber. Between a large-diameter fitting portion 60 at the upper end and an annular constriction portion 48 for giving axial compressive deformation capability thereto on the outer peripheral face of an insertion portion 80 which is in the condition of being inserted into a recessed fitting portion 44 of the spring seat 42 under the condition of compressive deformation during the bound of a vehicle, a diameter shrinking guide portion 82 is provided in the form of an approximately inverted taper with its outer diameter gradually smaller toward the upper side for guiding diameter shrinking deformation with the compressive deformation. An annular gap is formed in at least the insertion portion 80 between an inner peripheral face 72 of a center hole 47 and the piston rod to provide for diameter shrinking deformation.

Description

Technical field [0001] The present invention relates to a cylindrical foamed polyurethane impact stopper (boundstopper) used in a vehicle suspension device including a shock absorber and a coil spring as a structural element, and in particular to a bound stopper characterized by being used for preventing abnormalities. Shock limiter for sound technical means. Background technique [0002] Conventionally, in vehicle suspension devices that include shock absorbers and coil springs as structural elements, they are used to contact the cylinder of the shock absorber when the vehicle jumps to control the shock limit of excessive contraction and displacement of the shock absorber. Positioner. [0003] For example, the following Patent Document 1 describes an impact stopper. [0004] The impact limiter has an impact limiter made of rubber and an impact limiter made of foamed polyurethane. In particular, when the impact stopper is made of the latter foamed polyurethane, it has the charact...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap