JPH0362777U - - Google Patents

Info

Publication number
JPH0362777U
JPH0362777U JP12489189U JP12489189U JPH0362777U JP H0362777 U JPH0362777 U JP H0362777U JP 12489189 U JP12489189 U JP 12489189U JP 12489189 U JP12489189 U JP 12489189U JP H0362777 U JPH0362777 U JP H0362777U
Authority
JP
Japan
Prior art keywords
piston
pressure
gas chamber
hydraulic breaker
striking
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
JP12489189U
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 JP12489189U priority Critical patent/JPH0362777U/ja
Publication of JPH0362777U publication Critical patent/JPH0362777U/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 the drawing]

図は本考案に係る打撃力切替装置を備えた油圧
ブレーカの断面図である。 １０……油圧ブレーカ、１１……機体、１２…
…打撃ピストン、１３……前室、１４……後室、
１７……チゼル、１８……高圧ガス室、２０……
プランジヤ、２１……手動切替弁。 The figure is a sectional view of a hydraulic breaker equipped with a striking force switching device according to the present invention. 10... Hydraulic breaker, 11... Airframe, 12...
...Strike piston, 13...front chamber, 14...rear chamber,
17...chisel, 18...high pressure gas chamber, 20...
Plunger, 21...manual switching valve.

Claims (1)

【実用新案登録請求の範囲】 打撃ピストンの前室と後室に油圧を交互に供給
して、該ピストンの往復動でチゼルを打撃する油
圧ブレーカにおいて、 上記ピストンの後端側に高圧ガス室が形成され
、該ガス室に、切替えによりガス圧を高める加圧
手段が設けられていることを特徴とする油圧ブレ
ーカの打撃力切替装置。[Scope of Claim for Utility Model Registration] A hydraulic breaker that alternately supplies hydraulic pressure to the front and rear chambers of a striking piston and strikes a chisel with the reciprocating motion of the piston, wherein a high-pressure gas chamber is provided at the rear end of the piston. A striking force switching device for a hydraulic breaker, characterized in that the gas chamber is provided with pressurizing means for increasing gas pressure by switching.
JP12489189U 1989-10-25 1989-10-25 Pending JPH0362777U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12489189U JPH0362777U (en) 1989-10-25 1989-10-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12489189U JPH0362777U (en) 1989-10-25 1989-10-25

Publications (1)

Publication Number Publication Date
JPH0362777U true JPH0362777U (en) 1991-06-19

Family

ID=31672786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12489189U Pending JPH0362777U (en) 1989-10-25 1989-10-25

Country Status (1)

Country Link
JP (1) JPH0362777U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018131689A1 (en) * 2017-01-12 2018-07-19 古河ロックドリル株式会社 Hydraulic hammering device
US11052524B2 (en) 2015-07-13 2021-07-06 Furukawa Rock Drill Co., Ltd. Hydraulic hammering device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11052524B2 (en) 2015-07-13 2021-07-06 Furukawa Rock Drill Co., Ltd. Hydraulic hammering device
WO2018131689A1 (en) * 2017-01-12 2018-07-19 古河ロックドリル株式会社 Hydraulic hammering device
JPWO2018131689A1 (en) * 2017-01-12 2019-11-07 古河ロックドリル株式会社 Hydraulic striking device
US11207769B2 (en) 2017-01-12 2021-12-28 Furukawa Rock Drill Co., Ltd. Hydraulic hammering device

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