公开(公告)号：US20200080613A1

公开(公告)日：2020-03-12

申请号：US16485082

申请日：2017-05-10

Applicant: Showa Corporation

Inventor： Gota NAKANO ,  Kazunari MAEDA ,  Hiroshi ENDO ,  Seiryo KONAKAI

IPC: F16F9/18 ,  F16F9/348 ,  F16K47/02

Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and a pressing part having elasticity, the pressing part being configured to press the valve against the piston.

公开(公告)号：US20190390731A1

公开(公告)日：2019-12-26

申请号：US16484031

申请日：2017-05-10

Applicant: Showa Corporation

Inventor： Gota NAKANO ,  Kazunari MAEDA ,  Hiroshi ENDO ,  Seiryo KONAKAI

IPC: F16F9/348 ,  F16F9/18

Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and an imparting part having elasticity, the imparting part being configured to impart, to the valve, a load that is uneven in a circumferential direction of the valve and directed toward the piston.