公开(公告)号：US09776468B2

公开(公告)日：2017-10-03

申请号：US15022921

申请日：2014-09-19

Applicant: KYB Corporation

Inventor： Takashi Teraoka ,  Tatsuya Masamura

IPC: F16F9/18 ,  B60G17/08 ,  F16F9/50 ,  F16F9/32 ,  B60G15/06 ,  F16F9/34 ,  F16F9/512

CPC classification number: B60G17/08 ,  B60G15/061 ,  F16F9/187 ,  F16F9/32 ,  F16F9/34 ,  F16F9/46 ,  F16F9/50 ,  F16F9/5126

Abstract: A shock absorber includes at least one of an expansion-side sensitive unit and a contraction-side sensitive unit. The expansion-side sensitive unit has an expansion-side actuating chamber that communicates with an expansion-side chamber and a contraction-side chamber, an expansion-side free piston that partitions the expansion-side actuating chamber into a first expansion-side pressure chamber and a second expansion-side pressure chamber, and an expansion-side spring element configured to bias the expansion-side free piston to compress the first expansion-side pressure chamber. The contraction-side sensitive unit has a contraction-side actuating chamber that communicates with a contraction-side chamber and a reservoir, a contraction-side free piston that partitions the contraction-side actuating chamber into a first contraction-side pressure chamber and a second contraction-side pressure chamber, and a contraction-side spring element configured to bias the contraction-side free piston to compress the first contraction-side pressure chamber.

公开(公告)号：US09476477B2

公开(公告)日：2016-10-25

申请号：US14654622

申请日：2013-12-18

Applicant: KYB Corporation

Inventor： Takashi Teraoka

IPC: F16F9/34 ,  F16F9/49

CPC classification number: F16F9/49

Abstract: A shock absorber includes a cylinder, a piston, a piston rod, a damping passage, a bypass path, a shutter, a biasing member, and a control spring secured to the cylinder by one end. Another end of the control spring is opposed to the shutter. When the piston exceeds a predetermined position with respect to the cylinder by displacing on the compression-side chamber side, the shutter is pushed by the control spring and closes the bypass path. The control spring is a conical coil spring. The other end side of the control spring has a small diameter. A guide ring, which is slidably in contact with an inner periphery of the cylinder, is mounted to the small-diameter side end of the control spring.

Abstract translation: 减震器包括一个气缸，一个活塞，一个活塞杆，一个阻尼通道，一个旁通通道，一个挡板，一个偏置构件和一个通过一端固定在气缸上的控制弹簧。 控制弹簧的另一端与快门相对。 当活塞通过在压缩侧室侧移位而超过相对于气缸的预定位置时，闸门被控制弹簧推压并关闭旁路路径。 控制弹簧是锥形螺旋弹簧。 控制弹簧的另一端具有小直径。 可滑动地与缸体的内周接触的导向环安装在控制弹簧的小直径侧端。

公开(公告)号：US09834054B2

公开(公告)日：2017-12-05

申请号：US15022323

申请日：2014-09-18

Applicant: KYB Corporation

Inventor： Takashi Teraoka ,  Kazutaka Inamitsu ,  Tatsuya Masamura

IPC: F16F9/512 ,  B60G13/08 ,  F16F9/516 ,  F16F9/348 ,  F16F9/46 ,  F16F9/18 ,  F16F9/06

CPC classification number: B60G13/08 ,  B60G2202/24 ,  B60G2206/41 ,  B60G2800/162 ,  F16F9/061 ,  F16F9/18 ,  F16F9/348 ,  F16F9/468 ,  F16F9/5126 ,  F16F9/516 ,  F16F2228/066

Abstract: A shock absorber includes; a free piston that partitions the compression chamber into an expansion-side compression chamber and a contraction-side compression chamber; an expansion-side flow passage that connects the expansion-side chamber with the expansion-side compression chamber; a contraction-side flow passage that connects the contraction-side chamber with the contraction-side compression chamber; an expansion-side bypass valve provided in the expansion-side flow passage to admit only a flow directed from the expansion-side chamber to the expansion-side compression chamber and generate resistance; a contraction-side bypass valve provided in parallel with the expansion-side bypass valve to admit only a flow directed from the expansion-side compression chamber to the expansion-side chamber and generate resistance; an expansion-side elastic stopper configured to stop the free piston at an expansion-side stroke end; and a contraction-side elastic stopper configured to stop the free piston at a contraction-side stroke end.