JPH03108902U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図〜第３図の本考案の実施例を示し、第１
図は安全弁の断面図、第２図は全体断面図、第３
図は変形例を示す全体断面図、第４図は従来例の
断面図である。 １……流体モータ、２……操作弁、３……第１
主回路、４……第２主回路、５……チエツク弁、
６……ブレーキ弁、１０……安全弁、１１……弁
本体、１２……第１ポート、１３……第２ポート
、２５……フリーピストン。 Embodiments of the present invention are shown in FIGS. 1 to 3, and the first
The figure is a cross-sectional view of the safety valve, the second figure is an overall cross-sectional view, and the third figure is a cross-sectional view of the safety valve.
The figure is an overall sectional view showing a modified example, and FIG. 4 is a sectional view of a conventional example. 1...Fluid motor, 2...Operation valve, 3...First
Main circuit, 4...Second main circuit, 5...Check valve,
6... Brake valve, 10... Safety valve, 11... Valve body, 12... First port, 13... Second port, 25... Free piston.

Claims (1)

【実用新案登録請求の範囲】 流体モータ１の第１・第２ポート１ａ，１ｂと
操作弁２を第１・第２主回路３，４で接続し、こ
の第１・第２主回路３，４にチエツク弁５とブレ
ーキ弁６を設け、前記第１・第２主回路１，２に
おける流体モータ１とブレーキ弁６との間に安全
弁１０を設け、 該安全弁１０を弁本体１１に第１・第２ポート
１２，１３を連通・遮断するフリーピストン２５
を設け、そのフリーピストン２５の第１ポート１
２の高圧流体が作用する受圧面積と第２ポート１
３の高圧流体が作用する受圧面積を同一とした構
造とし、 前記第１ポート１２を第１主回路３に
連通すると共に、第２ポート１３を第２主回路４
に連通したことを特徴とする流体ブレーキ装置。[Claims for Utility Model Registration] The first and second ports 1a and 1b of the fluid motor 1 and the operation valve 2 are connected by first and second main circuits 3 and 4, and the first and second main circuits 3, 4 is provided with a check valve 5 and a brake valve 6; a safety valve 10 is provided between the fluid motor 1 and the brake valve 6 in the first and second main circuits 1 and 2;・Free piston 25 that communicates and blocks the second ports 12 and 13
and the first port 1 of the free piston 25
Pressure-receiving area on which the high-pressure fluid of No. 2 acts and the second port No. 1
The first port 12 is connected to the first main circuit 3, and the second port 13 is connected to the second main circuit 4.
A fluid brake device characterized by communicating with.