公开(公告)号：US20240344588A1

公开(公告)日：2024-10-17

申请号：US18637094

申请日：2024-04-16

Applicant: Hitachi Astemo, Ltd.

Inventor： Nao KADOTA ,  Yuka KUBOTERA ,  Takashi NAKAGAWA

IPC: F16F13/00 ,  B60G15/06

CPC classification number: F16F13/007 ,  B60G15/063 ,  B60G2202/312 ,  B60G2206/40 ,  B60G2206/72 ,  B60G2800/162 ,  F16F2224/0208 ,  F16F2226/04

Abstract: A shock absorber includes a cylinder, a slider coaxially provided outside of the cylinder and movable in a direction along an axis of the cylinder, a first spring abutting against the slider and urging the slider in one direction along the axis, a second spring abutting against the slider and urging the slider in the other direction along the axis, a sleeve provided between the cylinder and the slider, a first restriction portion fixed to the cylinder and abutting against one end of the sleeve to restrict a movement of the sleeve in the one direction, a second restriction portion located outside of the cylinder and abutting against the other end of the sleeve to restrict a movement of the sleeve in the other direction, and a fixing member penetrating the sleeve in a radial direction to restrict a movement of the second restriction portion with respect to the cylinder.

公开(公告)号：US20230060765A1

公开(公告)日：2023-03-02

申请号：US18054361

申请日：2022-11-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Nao KADOTA

IPC: F16F9/32 ,  F16F9/18

Abstract: A shock absorber includes: a piston which is connected to an upper end of a rod by a fixing member and moves forward and backward in a cylinder; a conductor member which penetrates the piston from an upper end of an outer tube and extends into the rod; a coil which is provided in the rod so as to be capable of detecting a displacement of the conductor member with respect to the rod; an elastic body made of a resin material which is provided adjacent to the conductor member and on an outer side of an outer peripheral surface of the conductor member; and a support portion which supports an outer peripheral surface of the elastic body so as to restrict movement of the elastic body in a direction intersecting a center line of the conductor member.

公开(公告)号：US20220163086A1

公开(公告)日：2022-05-26

申请号：US17340668

申请日：2021-06-07

Applicant: Hitachi Astemo, Ltd.

Inventor： Daisuke IKEDA ,  Nao KADOTA

IPC: F16F9/16 ,  F16F9/50 ,  F16F9/32

Abstract: A shock absorber includes a hollow cylinder body extending in an up-down direction, a rod pipe located on an axis of the cylinder body, provided to be relatively movable in an axial direction of the cylinder body with respect to the cylinder body, and provided in a form of receiving a force in the axial direction, a rod-shaped support body extending inside the rod pipe with an upper end fixed, a stroke sensor including a coil and a conductor provided to be able to detect relative displacement of the rod pipe with respect to the support body, and a hollow intermediate member provided between the inner peripheral surface of the rod pipe and the support body to allow movement in the axial direction.