公开(公告)号：US20210041899A1

公开(公告)日：2021-02-11

申请号：US17078854

申请日：2020-10-23

Applicant: SHOWA CORPORATION

Inventor： Yosuke MURAKAMI ,  Yosuke FUJIKAWA

IPC: G05D16/20

Abstract: A valve device includes an operating unit, a first pushing member, a plate-like member, a second pushing member, and a valve. The plate-like member includes a plurality of the moment arms arranged at intervals in a circumferential direction. A force point of each of the plurality of the moment arms is pushed by a front end of the first pushing member. The second pushing member has an acted surface receiving a force from an action point of each of the plurality of the moment arms. The plurality of the moment arms are integrally connected by an annular frame portion of the plate-like member where the fulcrum is disposed.

公开(公告)号：US20210003189A1

公开(公告)日：2021-01-07

申请号：US17031167

申请日：2020-09-24

Applicant: Showa Corporation

Inventor： Yosuke FUJIKAWA ,  Yosuke MURAKAMI

IPC: F16F9/348 ,  F16F9/18 ,  F16F9/50 ,  F16K11/10

Abstract: A valve mechanism includes: a cylindrical body; a plurality of valve bodies; and a drive valve. The drive valve includes a shaft portion having therein a flow path penetrating in the axial direction, and a step portion extending from an outer peripheral surface of the shaft portion to a radial outside of the shaft portion. The shaft portion has a tip portion which extends further on the cylindrical body side than the step portion. An outer diameter of the tip portion is smaller than an outer diameter of the step portion. A gap between the valve bodies is changed by elastically deforming an inner peripheral portion of the valve body, which comes into contact with the drive valve moved in a direction approaching the valve body, in a direction approaching the cylindrical body with respect to an outer peripheral portion of the valve body.

公开(公告)号：US20210088099A1

公开(公告)日：2021-03-25

申请号：US17110002

申请日：2020-12-02

Applicant: SHOWA CORPORATION

Inventor： Yosuke FUJIKAWA

IPC: F16F9/348 ,  F16F9/06 ,  F16K31/06

Abstract: A valve mechanism includes an orifice collar having a hollow portion penetrating in an axial direction, a valve body having a central hole and an opening portion which penetrate in the axial direction and arranged so as to come into contact with an axial end surface of the orifice collar, and a drive valve which is movable in the axial direction and is arranged on an opposite side of the orifice collar with the valve body as a boundary, where the valve body includes spoke valves, each of which includes an outer frame portion, an inner frame portion, and a plurality of spoke portions connecting the outer frame portion 74 and the inner frame portion, and a protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed.

公开(公告)号：US20210018060A1

公开(公告)日：2021-01-21

申请号：US17030215

申请日：2020-09-23

Applicant: Showa Corporation

Inventor： Yosuke FUJIKAWA ,  Yosuke MURAKAMI

IPC: F16F9/348 ,  F16F9/46

Abstract: A valve mechanism includes: a cylindrical body; a plurality of valve bodies; and a drive valve. The drive valve includes a shaft portion having a flow path penetrating in the axial direction, and a first step portion extending from an outer peripheral surface of the shaft portion to a radial outside of the shaft portion. The shaft portion has a protrusion portion protruding further toward the cylindrical body side than the first step portion and a base portion extending to a side opposite to the protrusion portion with respect to the first step portion. A gap between the valve bodies is changed by elastically deforming an inner peripheral portion of the valve body, which comes into contact with the drive valve moved in a direction approaching the valve body, in a direction approaching the cylindrical body with respect to an outer peripheral portion of the valve body.

公开(公告)号：US20200182325A1

公开(公告)日：2020-06-11

申请号：US16791441

申请日：2020-02-14

Applicant: Showa Corporation

Inventor： Naoya KUROIWA ,  Yosuke FUJIKAWA ,  Yosuke MURAKAMI

IPC: F16F13/00 ,  F16F9/32 ,  F16F9/38

Abstract: A shock absorber includes a cylinder which is a conductor; a rod inserted into the cylinder from one end side of the cylinder, a suspension spring arranged outside the cylinder, a spring receiver which receives a load of the suspension spring on the one end side of the rod, and a protective member arranged on the one end side of the rod and configured to protect the rod. The protective member has a coil configured to detect a relative position between the cylinder and the protective member, and an end portion formed on the one end side of the protective member is arranged so as not to receive a load from the spring receiver.