FR2131667A5 - - Google Patents

Info

Publication number
FR2131667A5
FR2131667A5 FR7210721A FR7210721A FR2131667A5 FR 2131667 A5 FR2131667 A5 FR 2131667A5 FR 7210721 A FR7210721 A FR 7210721A FR 7210721 A FR7210721 A FR 7210721A FR 2131667 A5 FR2131667 A5 FR 2131667A5
Authority
FR
France
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
Application number
FR7210721A
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.)
Kobelco Construction Machinery Co Ltd
Original Assignee
Yutani Heavy Industries 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
Priority claimed from JP1827671A external-priority patent/JPS5123922B1/ja
Priority claimed from JP6295571U external-priority patent/JPS516481Y2/ja
Priority claimed from JP6388371U external-priority patent/JPS516482Y2/ja
Priority claimed from JP7250371U external-priority patent/JPS4831691U/ja
Priority claimed from JP1971072504U external-priority patent/JPS5125521Y2/ja
Application filed by Yutani Heavy Industries Ltd filed Critical Yutani Heavy Industries Ltd
Application granted granted Critical
Publication of FR2131667A5 publication Critical patent/FR2131667A5/fr
Expired 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
    • B25D9/06—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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
FR7210721A 1971-03-27 1972-03-27 Expired FR2131667A5 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP1827671A JPS5123922B1 (en) 1971-03-27 1971-03-27
JP6295571U JPS516481Y2 (en) 1971-07-17 1971-07-17
JP6388371U JPS516482Y2 (en) 1971-07-19 1971-07-19
JP7250371U JPS4831691U (en) 1971-08-12 1971-08-12
JP1971072504U JPS5125521Y2 (en) 1971-08-12 1971-08-12

Publications (1)

Publication Number Publication Date
FR2131667A5 true FR2131667A5 (en) 1972-11-10

Family

ID=27520010

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7210721A Expired FR2131667A5 (en) 1971-03-27 1972-03-27

Country Status (4)

Country Link
US (1) US3792738A (en)
DE (1) DE2214933C3 (en)
FR (1) FR2131667A5 (en)
GB (1) GB1373848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442699A1 (en) * 1978-11-30 1980-06-27 Hughes Tool Co PERCUSSION TOOL, ESPECIALLY FOR MINING AND DEMOLITION WORK

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116125B (en) * 2001-07-02 2005-09-30 Sandvik Tamrock Oy Type of device
GB0428210D0 (en) * 2004-12-23 2005-01-26 Black & Decker Inc Mode change mechanism
KR101412092B1 (en) * 2013-11-28 2014-07-02 주식회사 엔와이테크 Hydraulic punching apparatus of low noise type
CH711414A1 (en) * 2015-08-13 2017-02-15 Hatebur Umformmaschinen Ag Device for generating impulse dynamic process forces.
USD871461S1 (en) * 2017-06-16 2019-12-31 Il Jae Lee Hydraulic breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559478A (en) * 1948-11-22 1951-07-03 Stonefield Inc Hydraulic impact tool
US2661928A (en) * 1952-02-09 1953-12-08 Gulf Research Development Co Hammer drill
NL110987C (en) * 1957-05-16
US2917025A (en) * 1958-06-03 1959-12-15 Richard O Dulaney Pneumatic drill hammer
US3426856A (en) * 1967-06-09 1969-02-11 Hughes Tool Co Control valve for limiting hydraulic motor speedup

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442699A1 (en) * 1978-11-30 1980-06-27 Hughes Tool Co PERCUSSION TOOL, ESPECIALLY FOR MINING AND DEMOLITION WORK

Also Published As

Publication number Publication date
US3792738A (en) 1974-02-19
DE2214933A1 (en) 1972-10-12
DE2214933C3 (en) 1975-01-02
DE2214933B2 (en) 1974-04-04
GB1373848A (en) 1974-11-13

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Legal Events

Date Code Title Description
ST Notification of lapse