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Title:
TELESCOPIC HYDRAULIC SHOCK ABSORBER
Document Type and Number:
Japanese Patent JPS5533930
Kind Code:
A
Abstract:
PURPOSE:To obtain constant stable damping by preventing sucking of air foams into working oil that descends to a lower room while expansion process of hydraulic shock absorber. CONSTITUTION:Hydraulic shock absorber comprises a tubular outer tube 10w/ bottom an inner tube 20 inserted in the outer tube 10 slidably, a 1st hollow rod 30 also inserted in the outer tube 10 and is fixed to it at its bottom, and a working piston which separates a 1st working oil room R1 into two sections. A 2nd hollow rod 50 is inserted in the rod 30 slidably for a fixed range, and an oil passage P is provided, between rods 30 and 50, being separated from an inner working oil room and connected to upper section r1 and lower section r2 of the 1st working oil room R1. By relative sliding between the tubes 10 and 20 while expansion of the shock absorber delivers portion of working oil in the upper section r1 into the loser section r2 via an oil passage P.

Inventors:
WATANABE SHIYOUEI
Application Number:
JP10580178A
Publication Date:
March 10, 1980
Filing Date:
August 30, 1978
Export Citation:
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Assignee:
YAMAHA MOTOR CO LTD
International Classes:
F16F9/16; F16F9/06; F16F9/40; (IPC1-7): F16F9/16



 
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