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GB2394438B - Pnuematically cushioned impact mechanism - Google Patents

Pnuematically cushioned impact mechanism

Info

Publication number
GB2394438B
GB2394438B GB0324352A GB0324352A GB2394438B GB 2394438 B GB2394438 B GB 2394438B GB 0324352 A GB0324352 A GB 0324352A GB 0324352 A GB0324352 A GB 0324352A GB 2394438 B GB2394438 B GB 2394438B
Authority
GB
United Kingdom
Prior art keywords
pnuematically
impact mechanism
cushioned impact
cushioned
pnuematically cushioned
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
GB0324352A
Other versions
GB0324352D0 (en
GB2394438A (en
Inventor
Willy Braun
Axel Kuhnle
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB0324352D0 publication Critical patent/GB0324352D0/en
Publication of GB2394438A publication Critical patent/GB2394438A/en
Application granted granted Critical
Publication of GB2394438B publication Critical patent/GB2394438B/en
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
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/12—Means for driving the impulse member comprising a crank mechanism
    • B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body
    • 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
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • 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
    • B25D2250/035—Bleeding holes, e.g. in piston guide-sleeves
    • 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
    • B25D2250/185—Pressure equalising means between sealed chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
GB0324352A 2002-10-22 2003-10-17 Pnuematically cushioned impact mechanism Expired - Fee Related GB2394438B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10249139A DE10249139A1 (en) 2002-10-22 2002-10-22 Air cushion percussion

Publications (3)

Publication Number Publication Date
GB0324352D0 GB0324352D0 (en) 2003-11-19
GB2394438A GB2394438A (en) 2004-04-28
GB2394438B true GB2394438B (en) 2005-01-12

Family

ID=29557905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0324352A Expired - Fee Related GB2394438B (en) 2002-10-22 2003-10-17 Pnuematically cushioned impact mechanism

Country Status (5)

Country Link
KR (1) KR20040035566A (en)
CN (1) CN100352610C (en)
CH (1) CH696633A5 (en)
DE (1) DE10249139A1 (en)
GB (1) GB2394438B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206445A1 (en) * 2012-04-19 2013-10-24 Hilti Aktiengesellschaft machine tool
GB201216905D0 (en) 2012-09-21 2012-11-07 Black & Decker Inc A hammer drill
EP2857149A1 (en) * 2013-10-03 2015-04-08 HILTI Aktiengesellschaft Manual tool machine
EP2871028A1 (en) * 2013-11-11 2015-05-13 HILTI Aktiengesellschaft Manual tool machine
KR102552492B1 (en) * 2018-04-23 2023-07-06 현대자동차주식회사 Hammering assembly system and hammering unit
WO2020234005A1 (en) 2019-05-21 2020-11-26 Inventio Ag Aligning device and method for aligning a guide rail of an elevator system by means of force pulses

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1446547A (en) * 1919-03-22 1923-02-27 Louis K De Bus Valve for pneumatic tools
US1640570A (en) * 1925-03-20 1927-08-30 Concrete Surfacing Machinery C Power hammer
GB2190147A (en) * 1986-03-27 1987-11-11 Derek George Saunders Hydraulically-operated tools
DE3910598A1 (en) * 1989-04-01 1990-10-04 Bosch Gmbh Robert Hammer with air spring percussion mechanism
EP0388383B1 (en) * 1989-03-16 1995-10-18 Atlas Copco Berema Aktiebolag Hammer machine
US6116352A (en) * 1998-03-10 2000-09-12 Robert Bosch Gmbh Drilling and/or percussion power tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2069399B (en) * 1980-02-12 1983-10-19 V Ni I P Konstrukt I Mek I Ruc Percussive tool

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1446547A (en) * 1919-03-22 1923-02-27 Louis K De Bus Valve for pneumatic tools
US1640570A (en) * 1925-03-20 1927-08-30 Concrete Surfacing Machinery C Power hammer
GB2190147A (en) * 1986-03-27 1987-11-11 Derek George Saunders Hydraulically-operated tools
EP0388383B1 (en) * 1989-03-16 1995-10-18 Atlas Copco Berema Aktiebolag Hammer machine
DE3910598A1 (en) * 1989-04-01 1990-10-04 Bosch Gmbh Robert Hammer with air spring percussion mechanism
US6116352A (en) * 1998-03-10 2000-09-12 Robert Bosch Gmbh Drilling and/or percussion power tool

Also Published As

Publication number Publication date
DE10249139A1 (en) 2004-05-06
CH696633A5 (en) 2007-08-31
GB0324352D0 (en) 2003-11-19
CN1496790A (en) 2004-05-19
CN100352610C (en) 2007-12-05
GB2394438A (en) 2004-04-28
KR20040035566A (en) 2004-04-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20131017