JPS58173748U

JPS58173748U - piston device

Info

Publication number: JPS58173748U
Application number: JP19179281U
Authority: JP
Inventors: 荒井　啓光
Original assignee: 株式会社小松製作所
Priority date: 1981-12-24
Filing date: 1981-12-24
Publication date: 1983-11-19

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 the drawing]

第１図は従来のピストン装置の側面図、第２因は同正面
図、第３図は従来の他のピストンの縦断面図、第４図は
従来のピストン装置におけるピストンピン支持部分の断
面図、第５図は従来のピストン装置の一部省略した縦断
面図、第６図は本考案−実施例の一部断面した側面図、
第７は第６図■−■線に沿う断面図である。２はリテーナ、５はピストンピン、１１は逆止弁、１６
はチャンバ、２１は通孔。Fig. 1 is a side view of a conventional piston device, the second factor is a front view of the same, Fig. 3 is a longitudinal sectional view of another conventional piston, and Fig. 4 is a sectional view of a piston pin support portion in a conventional piston device. , FIG. 5 is a partially omitted vertical sectional view of a conventional piston device, and FIG. 6 is a partially sectional side view of an embodiment of the present invention.
7 is a sectional view taken along the line ■-■ in FIG. 6; 2 is a retainer, 5 is a piston pin, 11 is a check valve, 16
is a chamber, and 21 is a through hole.

Claims

[Scope of utility model registration request]

A piston pin 5 is provided in the cylindrical portion 13 of the piston body 12 with some play in the direction of movement of the piston body 12, a retainer 2 is fixed to the piston pin 5, and the retainer 2 is fitted into the cylindrical portion 13. A chamber 16 is formed between the retainer 2 and the top of the cylindrical part 13, and a through hole 21 is provided from the chamber 16 to the retainer 2, and oil is passed through the through hole 21 from the chamber 16 only to the retainer 2 side.
A piston device characterized in that a stop valve 11 is provided, a connecting rod 1 is connected to a bistoy pin 5, and a chamber 16 is communicated with an oil supply mechanism A.