Kabushiki Kaisha Showa Seisakusho

Shigenobu Abe

Yasuyuki Hayashi

A vehicle height adjusting device for attachment to a vehicle hydraulic shock absorber having a pump chamber used for delivering the fluid under pressure by the compression and extension strokes of the shock absorber. The device includes a hydraulic jack unit arranged in series with a suspension spring and a change-over valve for selectively adjusting vehicle height to a up position or a down position. The pump chamber, jack unit and reservoir are connected through the change-over valve by the delivery line for delivering hydraulic fluid from the pump chamber to the jack unit in the up position set by the change-over valve, a line for returning hydraulic fluid from the jack unit to the reservoir in the down position of vehicle height, and a line for by-passing hydraulic fluid from the pump chamber. The device has a supply line which branches from the delivery line upstream to the change-over valve and communicates with the reservoir, a first check valve arranged in the supply line in the direction of preventing the flow of fluid from the pump chamber to the reservoir, a second check valve provided in the delivery line downstream to a branch point of the supply line in the direction of preventing the flow of fluid from the jack unit to the pump chamber, a relief line provided between the second check valve and the branch point of the supply line and communicating with the reservoir, and a relief valve provided in the relief line.

Vehicle height adjusting device for attachment to a hydraulic shock

A shock absorber according to the present invention for use in a vehicle for cushioning a vibration generating between a vehicle body and an axle, in which a suspension spring is disposed between one member which may serve as a mass below the spring and the other member which may serve as a mass above the spring, has an apparatus for adjusting the height of vehicle permits its mounting length to be adjusted without changing an initially set load of the suspension spring while being relatively displaced with respect to the one member so that a stroke of the shock absorber may be changed.

Shock absorber for use in a vehicle

A hydraulic type vehicle height adjusting device for a vehicle shock absorber. The device has a mechanical locking means for holding relative positions before and after adjustment in vehicle height between the piston rod of the shock absorber and one of the mounting members for attaching the above absorber to the axle or the vehicle body.

Growing community of inventors

Hamamatsu, Japan

Shigenobu Abe