DE3882971D1 - Hydraulische schlagvorrichtung. - Google Patents

Hydraulische schlagvorrichtung.

Info

Publication number
DE3882971D1
DE3882971D1 DE8888105471T DE3882971T DE3882971D1 DE 3882971 D1 DE3882971 D1 DE 3882971D1 DE 8888105471 T DE8888105471 T DE 8888105471T DE 3882971 T DE3882971 T DE 3882971T DE 3882971 D1 DE3882971 D1 DE 3882971D1
Authority
DE
Germany
Prior art keywords
piston
cylinder
diameter part
lower chambers
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.)
Expired - Fee Related
Application number
DE8888105471T
Other languages
English (en)
Other versions
DE3882971T3 (de
DE3882971T2 (de
Inventor
Hiroshi Terada
Hiroshi Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Pneumatic Manufacturing Co Ltd
Original Assignee
Nippon Pneumatic Manufacturing Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8198864&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3882971(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Pneumatic Manufacturing Co Ltd filed Critical Nippon Pneumatic Manufacturing Co Ltd
Application granted granted Critical
Publication of DE3882971D1 publication Critical patent/DE3882971D1/de
Publication of DE3882971T2 publication Critical patent/DE3882971T2/de
Publication of DE3882971T3 publication Critical patent/DE3882971T3/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B25D9/20—Valve arrangements therefor involving a tubular-type slide valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D2209/007—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously having a tubular-slide valve, which is not coaxial with the piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/371—Use of springs
    • B25D2250/375—Fluid springs

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
DE3882971T 1988-04-06 1988-04-06 Hydraulische Schlagvorrichtung. Expired - Fee Related DE3882971T3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88105471A EP0335994B2 (de) 1988-04-06 1988-04-06 Hydraulische Schlagvorrichtung

Publications (3)

Publication Number Publication Date
DE3882971D1 true DE3882971D1 (de) 1993-09-09
DE3882971T2 DE3882971T2 (de) 1993-11-25
DE3882971T3 DE3882971T3 (de) 1997-02-06

Family

ID=8198864

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3882971T Expired - Fee Related DE3882971T3 (de) 1988-04-06 1988-04-06 Hydraulische Schlagvorrichtung.

Country Status (4)

Country Link
US (1) US4852664A (de)
EP (1) EP0335994B2 (de)
DE (1) DE3882971T3 (de)
ES (1) ES2044995T5 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03208215A (ja) * 1990-01-10 1991-09-11 Izumi Seiki Seisakusho:Kk 油圧式ブレーカー
CN1035245C (zh) * 1993-06-07 1997-06-25 株式会社水山重工业 使用气体和油压的冲击机构
US5398772A (en) * 1993-07-01 1995-03-21 Reedrill, Inc. Impact hammer
IT1270226B (it) * 1994-06-15 1997-04-29 Giordano S R L Off Dispositivo di distribuzione di olio in pressione e martello idraulico dotato di tale dispositivo
US5893419A (en) * 1997-01-08 1999-04-13 Fm Industries, Inc. Hydraulic impact tool
US6491114B1 (en) 2000-10-03 2002-12-10 Npk Construction Equipment, Inc. Slow start control for a hydraulic hammer
CA2515076C (en) * 2003-10-14 2009-02-03 Astec Industries, Inc. Scaling assembly
SE528033C2 (sv) 2004-03-12 2006-08-15 Atlas Copco Constr Tools Ab Hydraulslagverk
SE535068C2 (sv) * 2010-04-01 2012-04-03 Atlas Copco Rock Drills Ab Bergborrmaskin och användning därav för att förhindra uppkomst och spridning av kavitationsbubblor
US8733468B2 (en) * 2010-12-02 2014-05-27 Caterpillar Inc. Sleeve/liner assembly and hydraulic hammer using same
SE538675C2 (sv) * 2012-02-17 2016-10-18 Construction Tools Pc Ab Slidventil, slaganordning & metod
DE102012208891A1 (de) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Pneumatische Schlagwerkvorrichtung
SE536562C2 (sv) * 2012-06-28 2014-02-25 Atlas Copco Rock Drills Ab Anordning och förfarande vid en hydraulisk bergborrmaskin jämte bergborrmaskin
SE536903C2 (sv) * 2012-11-28 2014-10-21 Atlas Copco Rock Drills Ab Anordning vid fördelningsventil för en bergborrmaskin och bergborrmaskin
EP3085880B1 (de) * 2013-12-18 2018-10-24 Nippon Pneumatic Manufacturing Co., Ltd. Schlagangetriebenes werkzeug
JP6438896B2 (ja) * 2014-01-30 2018-12-19 古河ロックドリル株式会社 液圧式打撃装置
FR3037345B1 (fr) * 2015-06-11 2017-06-23 Montabert Roger Appareil hydraulique a percussions
KR102317232B1 (ko) * 2020-01-08 2021-10-22 주식회사 현대에버다임 유압 브레이커

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243118B (de) * 1958-11-17 1967-06-22 Ingbuero Dipl Ing Friedrich He Steuerung fuer hydraulisch betriebene Schlagvorrichtungen, insbesondere fuer handgefuehrte Schlagwerkzeuge mit in einer Fuehrung laengsverschieblich gelagertem Einsteckwerkzeug
US3741316A (en) * 1968-01-16 1973-06-26 Forges Et Atellers De Meudon S Fluid operated percussion tool
US3701386A (en) * 1970-12-11 1972-10-31 Dresser Ind Hydraulic drifter
SE391664B (sv) * 1973-10-23 1977-02-28 Svenska Hymas Ab Anordning vid hydrauliskt drivet slagverktyg
JPS5432192B2 (de) * 1975-03-18 1979-10-12
US4466493A (en) * 1981-12-17 1984-08-21 Hed Corporation Reciprocating linear fluid motor
EP0236721A3 (de) * 1986-03-11 1989-10-25 NITTETSU JITSUGYO CO., Ltd. Hydraulischer Brecher

Also Published As

Publication number Publication date
EP0335994B1 (de) 1993-08-04
DE3882971T3 (de) 1997-02-06
ES2044995T3 (es) 1994-01-16
ES2044995T5 (es) 1996-10-16
US4852664A (en) 1989-08-01
DE3882971T2 (de) 1993-11-25
EP0335994B2 (de) 1996-06-26
EP0335994A1 (de) 1989-10-11

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee