JPS5882510U

JPS5882510U - Cushion seal device

Info

Publication number: JPS5882510U
Application number: JP17891581U
Authority: JP
Inventors: 永並　宏; 前田　紀二; 牧村　兵衛
Original assignee: 三菱電線工業株式会社
Priority date: 1981-11-30
Filing date: 1981-11-30
Publication date: 1983-06-04
Also published as: JPS6141441Y2

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図は従来のクッション装置を示す縦断面部分図、第
２図は別の従来例を示す縦断面部分図、第３図は本考案
によるクッションシール装置を示す縦断面部分図、第４
図は第３図の拡大部分図、第５図は本考案における金属
リテーナの正面図、　　□第６図は本考案におけるゴム
リングの正面図、第７図、第８図は作動説明図、第９図
は更に別の実施例における金属リテーナの正面図、第１
０″図、第１１図は更に別の実施例による縦断面部分図
、第１２図は第１１図中のゴムリングの正面図、第１３
図は更に別の実施例におけるゴムリングの正面図、第１
４図は更に別の実施例による縦断面部分図である。１・
・・シリンダ、２・・・ピストン、２ａ。２ｂ・・・クッションカラー、３・・・肉厚部、３ａ・
・・内壁面、８・・・シリンダ室、ｌｌａ・・・側壁部
、１２・・・円環状溝、１３．１９・・・貫通孔、１４
．１４’。１４′・・・ゴムリング、１４ａ・・・内周部、１４ｂ
・・・外周部、１５．１５’、１５″・・・流体連通孔
、２０・・・切欠゛き、２１・・・円−状通路、２２・
・・ヘッドカバー、Ｘ□・・・シリンダ中心線、ｘ３・
・・面。ｌ２−　　ノ４ｔFIG. 1 is a vertical cross-sectional partial view showing a conventional cushion device, FIG. 2 is a vertical cross-sectional partial view showing another conventional example, FIG. 3 is a vertical cross-sectional partial view showing a cushion seal device according to the present invention, and FIG.
The figure is an enlarged partial view of Fig. 3, Fig. 5 is a front view of the metal retainer in the present invention, □ Fig. 6 is a front view of the rubber ring in the present invention, Figs. 7 and 8 are operation explanatory diagrams, FIG. 9 is a front view of a metal retainer in yet another embodiment, the first
Fig. 0'', Fig. 11 is a vertical cross-sectional partial view of yet another embodiment, Fig. 12 is a front view of the rubber ring in Fig. 11, and Fig. 13 is a partial longitudinal cross-sectional view of another embodiment.
The figure is a front view of a rubber ring in yet another embodiment, the first
FIG. 4 is a partial vertical cross-sectional view according to yet another embodiment. 1・
...Cylinder, 2...Piston, 2a. 2b... Cushion collar, 3... Thick part, 3a.
...Inner wall surface, 8...Cylinder chamber, lla...Side wall portion, 12...Annular groove, 13.19...Through hole, 14
．． 14'. 14'...Rubber ring, 14a...Inner peripheral part, 14b
...outer circumference, 15.15', 15"...fluid communication hole, 20...notch, 21...circular passage, 22...
・Head cover, X□・・・Cylinder center line, x3・
··surface. l2-no4t

Claims

[Scope of utility model registration request]

The inner periphery of a rubber ring is fitted into an annular groove with a substantially U-shaped cross section that opens toward the center of the cylinder and is provided on the cylinder chamber side end of the inner periphery wall of the head cover or rod cover at the end of the cylinder. In a cushion seal device for a fluid pressure cylinder that reduces the movement speed of a piston by slidingly contacting a cushion collar that is coaxial with and adjacent to the piston, a cylinder chamber is connected to the side wall of the cylinder chamber near the bottom of the annular groove. A through hole is provided for communication, the width is thinner than the width of the annular groove, and a fluid communication path extending in the width direction is provided on the outer periphery of the groove, and an annular notch is provided on at least one of the outer periphery ends. A rubber ring is fitted into the annular groove so as to be slidable in the direction along the cylinder center line so that the notch side faces the cylinder chamber side, thereby forming an annular passage connecting the fluid communication passage and the through hole. Cushion seal device.