Front fork

Details Front fork Front fork

2005-12-01

2008-10-28

Williams, Thomas J (Department: 3683)

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

C188S318000, C280S124105, C280S124158, C267S064150

Reexamination Certificate

active

07441638

ABSTRACT:
A front fork, which is interposed between a vehicle body and an axle to restrain a change in vehicle attitude, comprises a fork body (101) including a reservoir chamber (106) partially filled with gas and performing an expansion and contraction operation, a reservoir tank (102) partially filled with gas and communicating with the reservoir chamber (106) through a flow path (103) in which hydraulic oil flows, an on-off valve (35) switching between opening and closing of the flow path (103), and a relief valve (40) accepting flow of hydraulic oil from the reservoir chamber (106) toward the reservoir tank (102) when a pressure of the reservoir chamber (106) reaches a predetermined pressure.

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