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Single cylinder hydraulic shock absorber

A hydraulic shock absorber, single-cylinder technology, applied in the direction of gas-liquid shock absorber

Inactive Publication Date: 2006-08-30
KYB CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It will be apparent to those skilled in the art from this disclosure that this invention addresses this need as well as other needs in the related art.

Method used

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  • Single cylinder hydraulic shock absorber
  • Single cylinder hydraulic shock absorber
  • Single cylinder hydraulic shock absorber

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Embodiment Construction

[0015] Detailed description of the preferred embodiment

[0016] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0017] will be described below figure 1 and figure 2 A first preferred embodiment of the invention is shown in .

[0018] Such as figure 1 As shown, the single-cylinder hydraulic shock absorber 1 in the first preferred embodiment of the present invention is provided with a cylinder body 11 and an air chamber 2, wherein the cylinder body 11 is made of aluminum, and the air chamber 2 is used as an air spring, and is provided in the upper end side of the cylinder 11. However, only a part of the air chamber 2 is shown in the figure.

[0019] Such as figure 2 As shown, the entire periphery of the upper end, which is the opening end of the cylinder body 11, is bent inward by the caulking process. An oil seal (not shown) is fixed to the upper end surface of the cylinder block 11 by means of a ca...

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Abstract

A single-cylinder hydraulic shock absorber ( 1 ) is provided with an air chamber ( 2 ) which is formed of flexible tubular member ( 2 a) to connects in an air-tight condition with the upper part of the cylinder ( 11 ) and the piston rod ( 12 ) and enclosing air therein. The flexible tubular member ( 2 a) includes a tubular rolling diaphragm ( 21 ), a tubular piston pipe ( 22 ) connected air-tightly to a lower end of the rolling diaphragm ( 21 ), and a tubular protector ( 23 ) connected air-tightly to a lower end of the piston pipe ( 22 ). The protector ( 23 ) is engaged on the upper part of the cylinder ( 11 ) in such a way as to retain the flange part ( 23 a) of the upper end of the protector ( 23 ) on an upper end surface of the cylinder ( 11 ). A seal member ( 4 ) is interposed between the protector ( 2 ) and the cylinder ( 11 ).

Description

field of invention [0001] The present invention relates to improvements in single cylinder hydraulic shock absorbers with air springs for use in vehicle suspensions. Background of the invention [0002] In JP2004-332747A there is disclosed a single-cylinder hydraulic shock absorber used in a vehicle suspension, which has an air chamber in its upper portion. [0003] In this example, the air chamber is provided with a rolling diaphragm which is airtightly connected on one end side to a piston rod and on the other end side to a cylinder side, thereby Keep the air chamber airtight. Summary of the invention [0004] With the cylinder block made of aluminum, the weight of the hydraulic shock absorber is considerably reduced. However, when the rolled diaphragm is hermetically connected to the aluminum cylinder by welding, the strength of the aluminum material is lowered, which is disadvantageous. [0005] In view of the foregoing, there is a need for a single-cylinder hydraul...

Claims

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Application Information

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IPC IPC(8): F16F9/06
Inventor 小岛茂
Owner KYB CORP