EP0522344A3 - Hydraulic impact hammer - Google Patents

Hydraulic impact hammer Download PDF

Info

Publication number
EP0522344A3
EP0522344A3 EP19920110512 EP92110512A EP0522344A3 EP 0522344 A3 EP0522344 A3 EP 0522344A3 EP 19920110512 EP19920110512 EP 19920110512 EP 92110512 A EP92110512 A EP 92110512A EP 0522344 A3 EP0522344 A3 EP 0522344A3
Authority
EP
European Patent Office
Prior art keywords
impact hammer
hydraulic impact
hydraulic
hammer
impact
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.)
Granted
Application number
EP19920110512
Other versions
EP0522344A2 (en
EP0522344B1 (en
Inventor
Timo Sippus
Seppo Jurvanen
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.)
Tamrock Oy
Original Assignee
RAMMER BRETEC Oy
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 RAMMER BRETEC Oy filed Critical RAMMER BRETEC Oy
Publication of EP0522344A2 publication Critical patent/EP0522344A2/en
Publication of EP0522344A3 publication Critical patent/EP0522344A3/en
Application granted granted Critical
Publication of EP0522344B1 publication Critical patent/EP0522344B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • 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
    • B25D17/24—Damping the reaction force

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP19920110512 1991-07-09 1992-06-22 Hydraulic impact hammer Expired - Lifetime EP0522344B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI913311 1991-07-09
FI913311A FI91944C (en) 1991-07-09 1991-07-09 Hydraulic impact hammer

Publications (3)

Publication Number Publication Date
EP0522344A2 EP0522344A2 (en) 1993-01-13
EP0522344A3 true EP0522344A3 (en) 1993-07-28
EP0522344B1 EP0522344B1 (en) 1997-08-27

Family

ID=8532868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920110512 Expired - Lifetime EP0522344B1 (en) 1991-07-09 1992-06-22 Hydraulic impact hammer

Country Status (5)

Country Link
EP (1) EP0522344B1 (en)
JP (1) JPH0777709B2 (en)
DE (1) DE69221788T2 (en)
ES (1) ES2104773T3 (en)
FI (1) FI91944C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401250B (en) * 1993-03-08 1996-07-25 Winter Udo Pneumatic hammer
SE503683C2 (en) * 1994-11-17 1996-07-29 Berema Atlas Copco Ab Hydraulic breaker
NZ551876A (en) * 2006-12-07 2009-06-26 Rocktec Ltd Breaking machine shock absorbing system
JP5845492B2 (en) * 2012-12-03 2016-01-20 アピュアン株式会社 Work tools

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE801565C (en) * 1948-10-02 1951-01-11 Wilhelm Dipl-Ing Schmitt Shock absorber for air hammer
DE805268C (en) * 1948-10-02 1951-05-10 Hauhinco Maschf Jackhammer
DE805748C (en) * 1948-10-02 1951-05-28 Hauhinco Maschf Striking tool, in particular jackhammer
US3797586A (en) * 1971-12-20 1974-03-19 Bell Telephone Labor Inc Mole with decoupled nose and body
FR2209311A5 (en) * 1972-12-05 1974-06-28 Maco Meudon Sa
FR2303645A1 (en) * 1975-03-13 1976-10-08 Duss Maschf HAND-OPERABLE HAMMER WHOSE TOOL RECEIVES SHOCKS FROM A FREELY MOVING PISTON
US4074777A (en) * 1974-08-08 1978-02-21 Atlas Copco Aktiebolag Pneumatic impact tool
EP0080446A2 (en) * 1981-11-20 1983-06-01 Atlas Copco Aktiebolag Method of controlling an impact motor and an impact motor
FR2647870A1 (en) * 1989-06-06 1990-12-07 Eimco Secoma HYDRAULIC PERCUSSION APPARATUS WITH RETURNING SHOCK WAVE DAMPING DEVICE
US5018792A (en) * 1990-05-25 1991-05-28 Caterpillar Inc. Impact ripper apparatus with linear reciprocating ram
WO1991012934A1 (en) * 1990-02-23 1991-09-05 Tamrock Oy An arrangement for an axial bearing in a drilling machine
EP0471649A1 (en) * 1990-08-16 1992-02-19 SIG Schweizerische Industrie-Gesellschaft Fluid pressure-operated hammer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62184993U (en) * 1986-05-19 1987-11-25
JPH04124283A (en) * 1990-09-17 1992-04-24 Sumitomo Electric Ind Ltd Coating method with boron nitride film

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE801565C (en) * 1948-10-02 1951-01-11 Wilhelm Dipl-Ing Schmitt Shock absorber for air hammer
DE805268C (en) * 1948-10-02 1951-05-10 Hauhinco Maschf Jackhammer
DE805748C (en) * 1948-10-02 1951-05-28 Hauhinco Maschf Striking tool, in particular jackhammer
US3797586A (en) * 1971-12-20 1974-03-19 Bell Telephone Labor Inc Mole with decoupled nose and body
FR2209311A5 (en) * 1972-12-05 1974-06-28 Maco Meudon Sa
US4074777A (en) * 1974-08-08 1978-02-21 Atlas Copco Aktiebolag Pneumatic impact tool
FR2303645A1 (en) * 1975-03-13 1976-10-08 Duss Maschf HAND-OPERABLE HAMMER WHOSE TOOL RECEIVES SHOCKS FROM A FREELY MOVING PISTON
EP0080446A2 (en) * 1981-11-20 1983-06-01 Atlas Copco Aktiebolag Method of controlling an impact motor and an impact motor
FR2647870A1 (en) * 1989-06-06 1990-12-07 Eimco Secoma HYDRAULIC PERCUSSION APPARATUS WITH RETURNING SHOCK WAVE DAMPING DEVICE
WO1991012934A1 (en) * 1990-02-23 1991-09-05 Tamrock Oy An arrangement for an axial bearing in a drilling machine
US5018792A (en) * 1990-05-25 1991-05-28 Caterpillar Inc. Impact ripper apparatus with linear reciprocating ram
EP0471649A1 (en) * 1990-08-16 1992-02-19 SIG Schweizerische Industrie-Gesellschaft Fluid pressure-operated hammer

Also Published As

Publication number Publication date
EP0522344A2 (en) 1993-01-13
JPH0777709B2 (en) 1995-08-23
FI91944B (en) 1994-05-31
FI913311A0 (en) 1991-07-09
FI913311A (en) 1993-01-10
FI91944C (en) 1994-09-12
DE69221788D1 (en) 1997-10-02
JPH05185380A (en) 1993-07-27
DE69221788T2 (en) 1998-01-15
ES2104773T3 (en) 1997-10-16
EP0522344B1 (en) 1997-08-27

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