JPS641878U - - Google Patents

Info

Publication number
JPS641878U
JPS641878U JP9549387U JP9549387U JPS641878U JP S641878 U JPS641878 U JP S641878U JP 9549387 U JP9549387 U JP 9549387U JP 9549387 U JP9549387 U JP 9549387U JP S641878 U JPS641878 U JP S641878U
Authority
JP
Japan
Prior art keywords
replenishment
hydraulic
switching valve
hydraulic breaker
drive circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9549387U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP9549387U priority Critical patent/JPS641878U/ja
Publication of JPS641878U publication Critical patent/JPS641878U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)

Description

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

第１図は、この考案の一実施例の油圧回路図で
ある。 図中、１，２は第１及び第２の油圧ポンプ、３
，４はその吐出管路、５，６は第１、第２の台車
制御弁、１０は油圧ブレーカ、１１は油圧ブレー
カ駆動回路、１２は補給用切換弁、１３は分流弁
、１４は補給回路である。 FIG. 1 is a hydraulic circuit diagram of an embodiment of this invention. In the figure, 1 and 2 are the first and second hydraulic pumps, 3
, 4 are the discharge pipes thereof, 5 and 6 are the first and second truck control valves, 10 is the hydraulic breaker, 11 is the hydraulic breaker drive circuit, 12 is the replenishment switching valve, 13 is the diversion valve, and 14 is the replenishment circuit. It is.

Claims (1)

【実用新案登録請求の範囲】 (1) 複数の油圧ポンプを備えた作業台車におい
て、第１の油圧ポンプの吐出管路に設けた第１の
台車制御弁に油圧ブレーカ駆動回路を接続すると
共に、他の油圧ポンプの吐出管路に補給用切換弁
を設け、該補給用切換弁から分流弁を介して油圧
ブレーカ駆動回路へ、補給回路を接続したことを
特徴とする作業台車用油圧ブレーカの油量増加装
置。 (2) 補給用切換弁が、第１の台車制御弁の油圧
ブレーカ駆動回路側への切換えに伴つて、補給回
路側への切換えが行われるパイロツト操作切換弁
である、実用新案登録請求の範囲第１項記載の作
業台車用油圧ブレーカの油量増加装置。[Scope of Claim for Utility Model Registration] (1) In a work trolley equipped with a plurality of hydraulic pumps, a hydraulic breaker drive circuit is connected to a first trolley control valve provided in a discharge pipe of the first hydraulic pump, and Oil of a hydraulic breaker for a work trolley, characterized in that a replenishment switching valve is provided in the discharge pipe of another hydraulic pump, and the replenishment circuit is connected from the replenishment switching valve to the hydraulic breaker drive circuit via a diversion valve. Volume increasing device. (2) The scope of the utility model registration claim, in which the replenishment switching valve is a pilot-operated switching valve that switches to the replenishment circuit side when the first bogie control valve switches to the hydraulic breaker drive circuit side. The oil amount increasing device for a hydraulic breaker for a work trolley as described in item 1.
JP9549387U 1987-06-22 1987-06-22 Pending JPS641878U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9549387U JPS641878U (en) 1987-06-22 1987-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9549387U JPS641878U (en) 1987-06-22 1987-06-22

Publications (1)

Publication Number Publication Date
JPS641878U true JPS641878U (en) 1989-01-09

Family

ID=30960089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9549387U Pending JPS641878U (en) 1987-06-22 1987-06-22

Country Status (1)

Country Link
JP (1) JPS641878U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011026078A (en) * 2009-07-27 2011-02-10 Kotobuki Sangyo Kk Roller lifting tool
EP2407599A1 (en) * 2009-03-12 2012-01-18 Caterpillar Japan Ltd. Working machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510064U (en) * 1978-07-06 1980-01-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510064U (en) * 1978-07-06 1980-01-22

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2407599A1 (en) * 2009-03-12 2012-01-18 Caterpillar Japan Ltd. Working machine
EP2407599A4 (en) * 2009-03-12 2014-12-31 Caterpillar Sarl Working machine
US9309649B2 (en) 2009-03-12 2016-04-12 Caterpillar Sarl Work machine
JP2011026078A (en) * 2009-07-27 2011-02-10 Kotobuki Sangyo Kk Roller lifting tool

Similar Documents

Publication Publication Date Title
JPS641878U (en)
JPH0262953U (en)
JPS595599U (en) Control circuit for clamper for forklift truck
JPS58170379U (en) Speed control circuit for cranes, etc.
JPH0175604U (en)
JPH01143401U (en)
JPS5830699U (en) Hydraulic circuit of cargo handling vehicle with fork shift device
JPH0278497U (en)
JPS62147703U (en)
JPS6175399U (en)
JPS6184754U (en)
JPH0344204U (en)
JPH0341211U (en)
JPS59137300U (en) Tilt and side shift switching device for forklift trucks
JPS5931658U (en) Hydraulic circuit for turning construction machinery, etc.
JPS63132102U (en)
JPS62803U (en)
JPS62162906U (en)
JPS6324402U (en)
JPS6012703U (en) Control circuit for hydraulic motor for travel
JPS6325802U (en)
JPS6193552U (en)
JPS6271187U (en)
JPH01176147U (en)
JPS62188603U (en)