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Shock absorber

A technology of buffer and disc valve, applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems of increasing manufacturing cost and management cost, etc.

Inactive Publication Date: 2010-08-04
HITACHI AUTOMOTIVE SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the shape of the seat member is changed according to each requirement, it is necessary to prepare a plurality of valve bodies formed with the seat member, thereby increasing the manufacturing cost and the management cost.

Method used

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  • Shock absorber
  • Shock absorber
  • Shock absorber

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] A buffer according to an embodiment of the present invention will be described below with reference to the drawings.

[0014] figure 1 The shock absorber 1 of the present embodiment shown includes a bottomed cylindrical cylinder 2 . A piston (valve body) 3 is slidably fitted in the cylinder 2 . The cylinder 2 is divided into two chambers, an upper cylinder chamber 2A and a cylinder lower chamber 2B, by the piston 3 and the annular sliding member 4 installed on the outer peripheral surface of the piston 3 . One end of the piston rod 5 is connected to the piston 3 via a nut 6 . The other end side of the piston rod 5 passes through a rod guide 7 and an oil seal 8 installed on the opening side of the cylinder 2, and protrudes to the outside.

[0015] On the piston rod 5 , a limiting member 12 , a spring seat 13 , a coil spring 14 , a spring seat 15 and a buffer body 16 are sequentially provided between the piston 3 and the rod guide 7 . The piston rod 5 passes through t...

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PUM

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Abstract

A valve main body where an opening of a passage is formed comprises a clamp seat portion adapted to clamp a disk valve, the opening, a non-annular first seat portion where the disk valve can be seated, and an annular second seat portion, which are formed in this order from the inner circumferential side. The first seat portion has an axial height equal to or higher than the axial height of the clamp seat portion and lower than the axial height of the second seat portion.

Description

technical field [0001] The present invention relates to a buffer. Background technique [0002] In the shock absorber, there is a structure in which a disc valve is provided in the passage where the piston slides in the cylinder to allow the fluid to flow to control the damping force. For example, as disclosed in JP Unexamined Publication No. 2-66333, in this kind of buffer, the seat for placing the disc valve can be set as various seats such as annular seats and special-shaped (non-annular) seats. . [0003] However, customers and users have various requirements for the damping force characteristics of the shock absorber. Therefore, if the shape and the like of the seat are changed according to each requirement, it is necessary to prepare a plurality of valve bodies on which the seat is formed, which increases manufacturing cost and management cost. Contents of the invention [0004] Accordingly, an object of the present invention is to provide a damper capable of redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/348
CPCF16F9/3405F16F9/585F16K15/148F16F9/348F16F9/34B60G13/08
Inventor 山口裕之
Owner HITACHI AUTOMOTIVE SYST LTD