公开(公告)号：US20160305552A1

公开(公告)日：2016-10-20

申请号：US15100653

申请日：2014-11-26

Applicant: KYB Corporation

Inventor： Hideto MAEDA ,  Shinji OZAKI ,  Kiyoshi KANI

IPC: F16J15/322 ,  F16F9/36 ,  F16J15/3212

CPC classification number: F16J15/322 ,  F16F9/364 ,  F16F2230/30 ,  F16J15/3212

Abstract: A seal device includes an annular seal main body; a lip part that has a main lip and a sub lip, the main lip and the sub lip being provided so as to be aligned in an axial direction on the inside of the seal main body; and an annular biasing member provided on an outer periphery of the lip part, the annular biasing member being configured to press both the main lip and the sub lip to a member from the outer periphery in a radial direction, wherein the biasing member has a length in the axial direction such that the biasing member is configured to press both a distal end site of the main lip and a distal end site of the sub lip from the outer periphery in the radial direction.

Abstract translation: 密封装置包括环形密封主体; 具有主唇缘和副唇部的唇部，所述主唇缘和所述副唇缘在所述密封主体的内侧沿轴向对准地设置; 以及设置在所述唇部的外周的环状的偏置构件，所述环状的施力构件被构造成沿径向从所述外周按压所述主唇缘和所述副唇缘到所述构件，其中，所述施力构件的长度 在所述轴向方向上，使得所述偏置构件构造成在所述径向方向上挤压所述主唇缘的远端位置和所述子唇缘的远端部位的外周。

公开(公告)号：US20240418233A1

公开(公告)日：2024-12-19

申请号：US18704088

申请日：2022-11-01

Applicant: KYB Corporation

Inventor： Masaki KOYAMA ,  Kiyoshi KANI ,  Takeshi YASUI

IPC: F16F9/36 ,  F16F9/06 ,  F16F9/19 ,  F16F9/348

Abstract: A seal device for a hydraulic apparatus according to the present invention includes an annular main piston split body (outer member), a sub piston split body (inner member) inserted into inside the main piston split body (outer member), and a seal ring accommodated in an annular groove provided in the outer circumference of the sub piston split body (inner member) and abutting on the other of the main piston split body (outer member) to prevent a liquid from passing through a gap between the main piston split body (outer member) and the sub piston split body (inner member), in which the seal ring has a self-lubricating property and has a cylindrical surface centered on an axis on an inner peripheral surface (bottom facing surface) facing a bottom of the annular groove.