JPS6175981U - - Google Patents

Info

Publication number
JPS6175981U
JPS6175981U JP16078184U JP16078184U JPS6175981U JP S6175981 U JPS6175981 U JP S6175981U JP 16078184 U JP16078184 U JP 16078184U JP 16078184 U JP16078184 U JP 16078184U JP S6175981 U JPS6175981 U JP S6175981U
Authority
JP
Japan
Prior art keywords
hydraulic oil
oil supply
chamber
piston
hydraulic
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.)
Granted
Application number
JP16078184U
Other languages
English (en)
Other versions
JPH028710Y2 (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 JP16078184U priority Critical patent/JPH028710Y2/ja
Publication of JPS6175981U publication Critical patent/JPS6175981U/ja
Application granted granted Critical
Publication of JPH028710Y2 publication Critical patent/JPH028710Y2/ja
Expired legal-status Critical Current

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  • Percussive Tools And Related Accessories (AREA)

Description

【図面の簡単な説明】
図面は本考案の実施例を示すもので、第１図ａ
は油圧ブレーカの要部断面図、第１図ｂは第１図
ａのＡ部の拡大図、第２図はピストン作動停止用
バルブの変形例の断面図、第３図は圧力検出手段
の説明図である。 １……ピストン、２……シリンダ本体、３……
前室、４……後室、５……第１作動油供給通路、
６……第２作動油供給通路、７……アキユムレー
タ、９……第１室、１０……第２室、１１……ブ
ラダ、１２……作動油リターン通路、１３……開
閉バルブ、１６……異常圧検出バルブ、２３……
ピストン作動停止用バルブ。

Claims (1)

    【実用新案登録請求の範囲】
  1. シリンダ本体内に摺動可能に設けられたピスト
    ンにて前室及び後室が形成され、該前室及び後室
    が第１及び第２作動油供給通路を介して作動油供
    給源に接続され、前記第１作動油供給通路に、ガ
    スが封入される第１室と作動油が流出入する第２
    室とにブラダにより区画されたアキユムレータが
    介設される一方、前記第２作動油供給通路に、ピ
    ストンが所定値だけ後退したときに開くバルブ手
    段が介設され、ピストンが前進位置にある際、前
    室に作動油供給源よりの第１設定圧が作用すると
    ピストンが後退する油圧ブレーカであつて、作動
    油供給源側圧力が第１設定圧より高い第２設定圧
    になるまで、上記バルブ手段の開閉作動を禁止す
    る開閉作動禁止手段を設けたことを特徴とする油
    圧ブレーカ。
JP16078184U 1984-10-24 1984-10-24 Expired JPH028710Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16078184U JPH028710Y2 (ja) 1984-10-24 1984-10-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16078184U JPH028710Y2 (ja) 1984-10-24 1984-10-24

Publications (2)

Publication Number Publication Date
JPS6175981U true JPS6175981U (ja) 1986-05-22
JPH028710Y2 JPH028710Y2 (ja) 1990-03-01

Family

ID=30718696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16078184U Expired JPH028710Y2 (ja) 1984-10-24 1984-10-24

Country Status (1)

Country Link
JP (1) JPH028710Y2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009090458A (ja) * 2007-10-05 2009-04-30 Sandvik Mining & Construction Oy 破岩装置、防止弁および破岩装置の作動方法
US8970533B2 (en) 2008-12-08 2015-03-03 Apple Inc. Selective input signal rejection and modification
US9367151B2 (en) 2005-12-30 2016-06-14 Apple Inc. Touch pad with symbols based on mode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9367151B2 (en) 2005-12-30 2016-06-14 Apple Inc. Touch pad with symbols based on mode
JP2009090458A (ja) * 2007-10-05 2009-04-30 Sandvik Mining & Construction Oy 破岩装置、防止弁および破岩装置の作動方法
US8970533B2 (en) 2008-12-08 2015-03-03 Apple Inc. Selective input signal rejection and modification

Also Published As

Publication number Publication date
JPH028710Y2 (ja) 1990-03-01

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