FR2383757A1 - PERCUSSION TOOL - Google Patents

PERCUSSION TOOL

Info

Publication number
FR2383757A1
FR2383757A1 FR7807579A FR7807579A FR2383757A1 FR 2383757 A1 FR2383757 A1 FR 2383757A1 FR 7807579 A FR7807579 A FR 7807579A FR 7807579 A FR7807579 A FR 7807579A FR 2383757 A1 FR2383757 A1 FR 2383757A1
Authority
FR
France
Prior art keywords
sheath
percussion tool
gas
valve
excavator
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.)
Withdrawn
Application number
FR7807579A
Other languages
French (fr)
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
Application filed by Nippon Pneumatic Manufacturing Co Ltd filed Critical Nippon Pneumatic Manufacturing Co Ltd
Publication of FR2383757A1 publication Critical patent/FR2383757A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/28—Supports; Devices for holding power-driven percussive tools in working position
    • 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
    • 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
    • B25D2209/002—Pressure accumulators
    • 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
    • B25D2209/005—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 coaxial with the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Abstract

Outil à percussion. Il comporte un cylindre 1, une gaine 2 montée sur celui-ci, un piston 5 monté dans la gaine de manière à effectuer un mouvement de va-et-vient sous l'effet d'un gaz et d'une pression hydraulique, et une soupape tubulaire 7, montée de façon coulissante sur la gaine pour commander un circuit hydraulique ; la soupape est relevée et abaissée hydrauliquement sans l'aide d'un ressort et il n'y a pas d'accumulateur de gaz. Application à un excavateur.Percussion tool. It comprises a cylinder 1, a sheath 2 mounted thereon, a piston 5 mounted in the sheath so as to perform a reciprocating movement under the effect of gas and hydraulic pressure, and a tubular valve 7, slidably mounted on the sheath to control a hydraulic circuit; the valve is hydraulically raised and lowered without the aid of a spring and there is no gas accumulator. Application to an excavator.

FR7807579A 1977-03-17 1978-03-16 PERCUSSION TOOL Withdrawn FR2383757A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52029893A JPS5819433B2 (en) 1977-03-17 1977-03-17 impact power tool

Publications (1)

Publication Number Publication Date
FR2383757A1 true FR2383757A1 (en) 1978-10-13

Family

ID=12288640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807579A Withdrawn FR2383757A1 (en) 1977-03-17 1978-03-16 PERCUSSION TOOL

Country Status (5)

Country Link
JP (1) JPS5819433B2 (en)
DE (1) DE2810285C2 (en)
FR (1) FR2383757A1 (en)
GB (1) GB1592751A (en)
IT (1) IT1103897B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462238A1 (en) * 1979-06-26 1981-02-13 Tampella Oy Ab HYDRAULIC PERCUSSION DEVICE, IN PARTICULAR FOR DRILLING APPARATUS
FR2531138A1 (en) * 1982-07-29 1984-02-03 Inst Avtomatiki Akademii Percussion device especially for a hydraulic well-drilling machine.
WO1989011568A1 (en) * 1988-05-20 1989-11-30 Alois Wimmer Hammer-swinging mechanism
EP0412203A1 (en) * 1989-08-11 1991-02-13 Nippon Pneumatic Manufacturing Co. Ltd. Cushioning device for impact tool
WO1994023906A1 (en) * 1993-04-21 1994-10-27 Roger Robarts Briggs Rock percussion mechanism
WO1996011775A1 (en) * 1994-10-17 1996-04-25 Roger Robarts Briggs Valve arrangement in a hydraulic percussive rock drill

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6293818A (en) * 1985-10-18 1987-04-30 シャープ株式会社 Membrane touch-panel
JPS62105325A (en) * 1985-10-31 1987-05-15 シャープ株式会社 Menbrane touch panel
JP2511459B2 (en) * 1987-06-12 1996-06-26 マツダ株式会社 Gas type hydraulic impact tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1431835A (en) * 1965-01-28 1966-03-18 Montabert Ets Percussion device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE690185C (en) * 1939-02-05 1940-04-18 Stahlwerk Mark Wengern Akt Ges Compressed air impact tool with slide control
DE1281370B (en) * 1963-09-06 1968-10-24 Krupp Gmbh Impact device with hydraulically reciprocating pistons
DE1703753A1 (en) * 1968-07-05 1972-02-24 Ingbuero Dipl Ing Friedrich He Hydraulically operated impact device
US3925985A (en) * 1973-01-09 1975-12-16 Rapidex Inc Impact actuator
JPS5432192B2 (en) * 1975-03-18 1979-10-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1431835A (en) * 1965-01-28 1966-03-18 Montabert Ets Percussion device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462238A1 (en) * 1979-06-26 1981-02-13 Tampella Oy Ab HYDRAULIC PERCUSSION DEVICE, IN PARTICULAR FOR DRILLING APPARATUS
FR2531138A1 (en) * 1982-07-29 1984-02-03 Inst Avtomatiki Akademii Percussion device especially for a hydraulic well-drilling machine.
WO1989011568A1 (en) * 1988-05-20 1989-11-30 Alois Wimmer Hammer-swinging mechanism
US5111888A (en) * 1988-05-20 1992-05-12 Alois Wimmer Hammer-swinging mechanism
EP0412203A1 (en) * 1989-08-11 1991-02-13 Nippon Pneumatic Manufacturing Co. Ltd. Cushioning device for impact tool
WO1994023906A1 (en) * 1993-04-21 1994-10-27 Roger Robarts Briggs Rock percussion mechanism
WO1996011775A1 (en) * 1994-10-17 1996-04-25 Roger Robarts Briggs Valve arrangement in a hydraulic percussive rock drill

Also Published As

Publication number Publication date
GB1592751A (en) 1981-07-08
IT1103897B (en) 1985-10-14
JPS5819433B2 (en) 1983-04-18
DE2810285C2 (en) 1983-12-15
DE2810285A1 (en) 1978-09-21
IT7848429A0 (en) 1978-03-14
JPS53114701A (en) 1978-10-06

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Legal Events

Date Code Title Description
ST Notification of lapse