DE2214933C3 - Hydraulischer Schlaghammer - Google Patents

Hydraulischer Schlaghammer

Info

Publication number
DE2214933C3
DE2214933C3 DE2214933A DE2214933A DE2214933C3 DE 2214933 C3 DE2214933 C3 DE 2214933C3 DE 2214933 A DE2214933 A DE 2214933A DE 2214933 A DE2214933 A DE 2214933A DE 2214933 C3 DE2214933 C3 DE 2214933C3
Authority
DE
Germany
Prior art keywords
oil
piston
chamber
hammer
space
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
Application number
DE2214933A
Other languages
German (de)
English (en)
Other versions
DE2214933B2 (de
DE2214933A1 (de
Inventor
Auf Nichtnennung Antrag
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 JP46018276A 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 JP1971072504U external-priority patent/JPS5125521Y2/ja
Priority claimed from JP7250371U external-priority patent/JPS4831691U/ja
Application filed by Yutani Heavy Industries Ltd filed Critical Yutani Heavy Industries Ltd
Publication of DE2214933A1 publication Critical patent/DE2214933A1/de
Publication of DE2214933B2 publication Critical patent/DE2214933B2/de
Application granted granted Critical
Publication of DE2214933C3 publication Critical patent/DE2214933C3/de
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)
DE2214933A 1971-03-27 1972-03-27 Hydraulischer Schlaghammer Expired DE2214933C3 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP46018276A JPS5123922B1 (enExample) 1971-03-27 1971-03-27
JP6295571U JPS516481Y2 (enExample) 1971-07-17 1971-07-17
JP6388371U JPS516482Y2 (enExample) 1971-07-19 1971-07-19
JP1971072504U JPS5125521Y2 (enExample) 1971-08-12 1971-08-12
JP7250371U JPS4831691U (enExample) 1971-08-12 1971-08-12

Publications (3)

Publication Number Publication Date
DE2214933A1 DE2214933A1 (de) 1972-10-12
DE2214933B2 DE2214933B2 (de) 1974-04-04
DE2214933C3 true DE2214933C3 (de) 1975-01-02

Family

ID=27520010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2214933A Expired DE2214933C3 (de) 1971-03-27 1972-03-27 Hydraulischer Schlaghammer

Country Status (4)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256187A (en) * 1978-11-30 1981-03-17 Hughes Tool Company Impact tool with hydraulic cocking mechanism
USD457534S1 (en) 2000-11-03 2002-05-21 Soosan Heavy Industries Co., Ltd. Hydraulic breaker
FI116125B (fi) * 2001-07-02 2005-09-30 Sandvik Tamrock Oy Iskulaite
GB0428210D0 (en) * 2004-12-23 2005-01-26 Black & Decker Inc Mode change mechanism
KR101412092B1 (ko) * 2013-11-28 2014-07-02 주식회사 엔와이테크 저소음형 유압 타격 장치
CH711414A1 (de) * 2015-08-13 2017-02-15 Hatebur Umformmaschinen Ag Vorrichtung zur Erzeugung impulsdynamischer Prozesskräfte.
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
BE564122A (enExample) * 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

Also Published As

Publication number Publication date
DE2214933B2 (de) 1974-04-04
US3792738A (en) 1974-02-19
DE2214933A1 (de) 1972-10-12
FR2131667A5 (enExample) 1972-11-10
GB1373848A (en) 1974-11-13

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee