公开(公告)号：US09850975B2

公开(公告)日：2017-12-26

申请号：US15105989

申请日：2014-12-17

Applicant: NIFCO INC.

Inventor： Shigemitsu Tomita

IPC: F16F11/00 ,  F16F9/02 ,  F16F7/09 ,  F16F9/32 ,  F16F9/36

CPC classification number: F16F9/0218 ,  F16F7/09 ,  F16F7/095 ,  F16F9/3214 ,  F16F9/3235 ,  F16F9/368

Abstract: A damper includes a piston provided with a rod, and a housing storing the piston, and generates a braking force by an operation of the piston. The piston is provided with a seal member relative to an inner wall of the housing; and a slider provided slidably relative to the piston, and contacting the inner wall of the housing with a predetermined frictional force. When the braking force is generated, the slider presses against the seal member, and a portion contacting the inner wall of the housing in the seal member deforms outwardly toward the housing.

公开(公告)号：US10883557B2

公开(公告)日：2021-01-05

申请号：US16341197

申请日：2017-08-31

Applicant: NIFCO INC.

Inventor： Shigemitsu Tomita

IPC: F16F9/02 ,  F16F11/00 ,  F16F7/09 ,  F16F9/512 ,  F16F9/36 ,  F16F9/516 ,  F16J15/3236 ,  F16F9/00 ,  F16J15/3248 ,  F16J15/3204

Abstract: A damper includes a piston provided with a rod, and a housing storing the piston, and generates a braking force by an operation of the piston. The piston includes a seal member relative to an inner wall of the housing; and a slider contacting the inner wall of the housing with a predetermined frictional force. When the braking force is generated, the slider presses against the seal member, and a portion contacting the inner wall of the housing in the seal member deforms toward an outside of the housing. At an inner side of the portion contacting the inner wall of the housing in the seal member, a deformation control portion is provided, which suppresses the seal member from deforming toward an inside of the housing.

公开(公告)号：US10584758B2

公开(公告)日：2020-03-10

申请号：US15573703

申请日：2016-05-11

Applicant: NIFCO INC.

Inventor： Shigemitsu Tomita

IPC: E05F3/02 ,  F16F9/02 ,  F16F7/09 ,  F16F9/32 ,  F16J10/04 ,  F16F9/34 ,  F16F9/36 ,  F16F9/512

Abstract: A damper includes a piston provided with a rod, and a cylinder storing the piston, and generates a braking force by a movement or relative movement of the piston. The cylinder is provided with width-side wall portions and thickness-side wall portions, and a shape in a cross section of the cylinder in a direction orthogonal to a moving direction of the piston is flat. The cylinder has a connection portion on an open side thereof, and the connection portion bridges the width-side wall portions.