JPH0280170U - - Google Patents

Info

Publication number
JPH0280170U
JPH0280170U JP1988158767U JP15876788U JPH0280170U JP H0280170 U JPH0280170 U JP H0280170U JP 1988158767 U JP1988158767 U JP 1988158767U JP 15876788 U JP15876788 U JP 15876788U JP H0280170 U JPH0280170 U JP H0280170U
Authority
JP
Japan
Prior art keywords
safety valve
driver
construction machinery
seat switch
safety
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
JP1988158767U
Other languages
English (en)
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 JP1988158767U priority Critical patent/JPH0280170U/ja
Publication of JPH0280170U publication Critical patent/JPH0280170U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)

Description

【図面の簡単な説明】
第1図乃至第3図は本考案の一実施例に係るも
のであり、第1図は油圧回路の全体を示す図面、
第2図は運転席の部分縦断面図、第3図は操作レ
バーの操作要領を示す概略平面図、第4図は着座
スイツチと安全弁との変形実施例を示す概略縦断
面図、第5図は一般的なパワーシヨベルを示す側
面図である。 1…パワーシヨベル、20,21…油圧ポンプ
、22…タンク、23,24…コントロールバル
ブ、37,38…安全弁、14…着座スイツチ、
40…安全弁。

Claims (1)

    【実用新案登録請求の範囲】
  1. 建設機械の油圧供給源と、各アクチユエータへ
    圧力油を分配供給するコントロールバルブとの流
    路間に配設された安全弁をON,OFF制御する
    安全装置であつて、運転席に運転者の着座の有無
    を検知してON,OFF動作する着座スイツチを
    設け、該着座スイツチを前記安全弁に電気的又は
    機械的に接続して運転者の着座の有無によつて安
    全弁をON,OFF制御するようにしたことを特
    徴とする建設機械の油圧回路安全装置。
JP1988158767U 1988-12-06 1988-12-06 Pending JPH0280170U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988158767U JPH0280170U (ja) 1988-12-06 1988-12-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988158767U JPH0280170U (ja) 1988-12-06 1988-12-06

Publications (1)

Publication Number Publication Date
JPH0280170U true JPH0280170U (ja) 1990-06-20

Family

ID=31439393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988158767U Pending JPH0280170U (ja) 1988-12-06 1988-12-06

Country Status (1)

Country Link
JP (1) JPH0280170U (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0510039U (ja) * 1991-07-19 1993-02-09 小松フオークリフト株式会社 荷役車両のキヤブ装置
JPH09329107A (ja) * 1996-04-11 1997-12-22 Nabco Ltd 油圧回路
EP0819795A1 (en) 1996-02-01 1998-01-21 Shin Caterpillar Mitsubishi Ltd. Hydraulic circuit for hydraulic machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760960B2 (ja) * 1977-02-15 1982-12-22 Mashiinenbau Uee Aa Emu Marugarete Osuteruhoofu

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760960B2 (ja) * 1977-02-15 1982-12-22 Mashiinenbau Uee Aa Emu Marugarete Osuteruhoofu

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0510039U (ja) * 1991-07-19 1993-02-09 小松フオークリフト株式会社 荷役車両のキヤブ装置
EP0819795A1 (en) 1996-02-01 1998-01-21 Shin Caterpillar Mitsubishi Ltd. Hydraulic circuit for hydraulic machine
JPH09329107A (ja) * 1996-04-11 1997-12-22 Nabco Ltd 油圧回路

Similar Documents

Publication Publication Date Title
JPH0280170U (ja)
JPS6386482U (ja)
JPH0229858U (ja)
JPS62194201U (ja)
JPH0369752U (ja)
JPH02120547U (ja)
JPS63116562U (ja)
JPS62125669U (ja)
JPH0229859U (ja)
JPH01139151U (ja)
JPS6297232U (ja)
JPS6212664U (ja)
JPH02147061U (ja)
JPH0346554U (ja)
JPS6186397U (ja)
JPH0230755U (ja)
JPS6281645U (ja)
JPH0192502U (ja)
JPS6263562U (ja)
JPS6316101U (ja)
JPH01101304U (ja)
JPH01103478U (ja)
JPS61112063U (ja)
JPH01175475U (ja)
JPS6265390U (ja)