JPS622807U

JPS622807U -

Info

Publication number: JPS622807U
Application number: JP9296985U
Authority: JP
Priority date: 1985-06-21
Filing date: 1985-06-21
Publication date: 1987-01-09
Also published as: JPH0331842Y2

Description

[Brief explanation of the drawing]

第１図乃至第６図は、本考案の実施例を示した
もので、第１図は、スプリングリターン形シリン
ダ式アクチユエータの一実施例を示す横断面図、
第２図は同上の他例を示す部分断面図、第３図は
、スプリングリターン形シリンダ式アクチユエー
タの他例を示す横断面図、第４図は、スプリング
リターン形シリンダ式アクチユエータの他の実施
例を示す横断面図、第５図は、同上の部分正面図
、第６図は、第４図のＡ―Ａ線断面における部分
断面図、第７図は、スプリングリターン形シリン
ダ式アクチユエータのその他の実施例を示す横断
面図であり、第８図は、スプリングリターン形シ
リンダ式アクチユエータの従来例を示した横断面
図、第９図は、同上の一部切欠き正面図、第１０
図は、同上に示した従来例の分解要領を説明する
ための部分正面図である。１１，３１……ばね装置、１２，３２……ばね
、１３，３３……端部、１４，３４……端部、１
５，３５……ロツド、１８，３８……めねじ、２
０，４０……おねじ、２１，４１……ピストン。 1 to 6 show an embodiment of the present invention, and FIG. 1 is a cross-sectional view showing an embodiment of a spring return type cylinder actuator.
Fig. 2 is a partial cross-sectional view showing another example of the same as above, Fig. 3 is a cross-sectional view showing another example of the spring return type cylinder type actuator, and Fig. 4 is another example of the spring return type cylinder type actuator. 5 is a partial front view of the same as above, FIG. 6 is a partial sectional view taken along line AA in FIG. 4, and FIG. FIG. 8 is a cross-sectional view showing a conventional example of a spring return type cylinder actuator; FIG. 9 is a partially cutaway front view of the same; FIG.
The figure is a partial front view for explaining the procedure for disassembling the conventional example shown above. 11, 31... Spring device, 12, 32... Spring, 13, 33... End, 14, 34... End, 1
5, 35...rod, 18,38...female thread, 2
0,40...male thread, 21,41...piston.

Claims

[Scope of utility model registration request]

One end of a spring provided in the spring device is brought into contact with one end of the spring device, the other end is brought into contact with a portion that presses the piston, and one end and the other end of the spring device are brought into contact with each other. In a cylinder type actuator in which the above-mentioned rod is screwed together with a male thread and a female thread formed to have a long screw-in length, when this screwing is loosened until it comes off, the above-mentioned A spring return type cylinder actuator characterized in that the spring is configured so that it has already expanded to its free length.