JPS6282374U

JPS6282374U -

Info

Publication number: JPS6282374U
Application number: JP17365285U
Authority: JP
Priority date: 1985-11-13
Filing date: 1985-11-13
Publication date: 1987-05-26

Description

[Brief explanation of the drawing]

第１図Ａは本考案の一実施例を示す縦断面図、
第１図Ｂは第１図Ａの下面図、第１図Ｃは第１図
Ａの―部分のロータの部分周面図、第１図Ｄ
は本考案の一使用態様図、第２図Ａは従来例（低
圧仕様）の機構図、第２図Ｂは従来例（高圧仕様
）の機構図、第３図は他の従来例の機構図である
。１ａ，１ｂ：往復動油圧シリンダ、２０ａ，２
０ｂ：ケーシング、２４ａ_１，２４ｂ_１：ロツド
側ポート、２４ａ_２，２４ｂ_２：ヘツド側ポート
、２５：ロータ、２６ａ，２６ｂ：圧油給排路、
２７：短絡路、３０：シール。 FIG. 1A is a vertical sectional view showing an embodiment of the present invention;
Fig. 1B is a bottom view of Fig. 1A, Fig. 1C is a partial peripheral view of the rotor at the - part of Fig. 1A, Fig. 1D
Figure 2A is a mechanism diagram of a conventional example (low pressure specification), Figure 2B is a mechanism diagram of a conventional example (high pressure specification), and Figure 3 is a mechanism diagram of another conventional example. It is. 1a, 1b: Reciprocating hydraulic cylinder, 20a, 2
0b: Casing, 24a ₁ , 24b ₁ : Rod side port, 24a ₂ , 24b ₂ : Head side port, 25: Rotor, 26a, 26b: Pressure oil supply and drainage path,
27: Short circuit, 30: Seal.

Claims

[Scope of utility model registration request]

A rotor that is rotatably operated is provided in a casing that is expanded and contracted, and a plurality of rod side ports and a plurality of head side ports connected to each oil chamber of a plurality of reciprocating hydraulic cylinders are arranged in opposition to each other in the casing. , a short-circuit path and a plurality of hydraulic supply/discharge paths that are switched and communicated with the rod-side port and the head-side port are arranged in opposition to each other in the rotor, and a seal is provided at a communication opening between the rotor and the casing. A flow path switching device for a double-row reciprocating hydraulic cylinder, characterized by the following.