JPS5992206U

JPS5992206U - hydraulic cylinder

Info

Publication number: JPS5992206U
Application number: JP18826282U
Authority: JP
Inventors: 亮介古賀
Original assignee: カヤバ工業株式会社
Priority date: 1982-12-13
Filing date: 1982-12-13
Publication date: 1984-06-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図、第２図、第３図、第４図および第５図は本考案
の実施例に係る油圧シリンダを部分的に示す断面図であ
る。１・・・・・・シリンダ、２・・・・・・ピストンロッ
ド、１０・・・・・・ピストン部、１１・・・・・・ピ
ストン、１２・・・・・・ピストンリング、１３・・・
・・・バックアップリング、１４・・・・・・Ｕパツキ
ン、１６・・・・・・エキスパンタリング、１７・・・
・・・シールリング、１８・・・・・・軸受、１９・・
・・・・ワイパーリング、Ａ・・・・・・一方案、Ｂ・
・・・・・他方室、Ｃ・・・・・・空気溜室。1, 2, 3, 4 and 5 are sectional views partially showing a hydraulic cylinder according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Cylinder, 2...Piston rod, 10...Piston part, 11...Piston, 12...Piston ring, 13...・・・
...Backup ring, 14...U patchkin, 16...Expanter ring, 17...
... Seal ring, 18... Bearing, 19...
... Wiper ring, A ... One option, B.
...Other chamber, C...Air reservoir chamber.

Claims

[Scope of utility model registration request]

(1) The inside of the cylinder is divided into one chamber and the other chamber by a piston part fixed to the tip of a piston rod inserted into the cylinder, and the piston part has an appropriate backing member attached to the piston. In the hydraulic cylinder, the piston part has an air reservoir chamber in which air mixed with the cylinder inner chamber is stored in a part separated from the backing member.

(2) The hydraulic cylinder according to claim 1, wherein the air reservoir is formed in or near the piston of the piston.

(3) The hydraulic cylinder according to claim 1, wherein the air reservoir is formed on the piston of the piston portion or in the vicinity of the piston portion or on a tool.

(4) The hydraulic cylinder according to claim 1, wherein the air reservoir chamber is formed so that air from the cylinder inner chamber flows in through different paths.

(5) The hydraulic cylinder according to claim 1, wherein the air reservoir chambers are formed so that both air reservoir chambers are communicated with each other.