GB1424473A - Pneumatic spring hammers - Google Patents

Pneumatic spring hammers

Info

Publication number
GB1424473A
GB1424473A GB800973A GB800973A GB1424473A GB 1424473 A GB1424473 A GB 1424473A GB 800973 A GB800973 A GB 800973A GB 800973 A GB800973 A GB 800973A GB 1424473 A GB1424473 A GB 1424473A
Authority
GB
United Kingdom
Prior art keywords
air
cylinder
piston
strike
hammer
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
GB800973A
Other languages
English (en)
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 GB1424473A publication Critical patent/GB1424473A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
GB800973A 1972-02-21 1973-02-19 Pneumatic spring hammers Expired GB1424473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722207962 DE2207962C3 (de) 1972-02-21 1972-02-21 Luftfederhammer

Publications (1)

Publication Number Publication Date
GB1424473A true GB1424473A (en) 1976-02-11

Family

ID=5836534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB800973A Expired GB1424473A (en) 1972-02-21 1973-02-19 Pneumatic spring hammers

Country Status (6)

Country Link
JP (1) JPS4897174A (enrdf_load_stackoverflow)
CH (1) CH542359A (enrdf_load_stackoverflow)
DE (1) DE2207962C3 (enrdf_load_stackoverflow)
FR (1) FR2163235A5 (enrdf_load_stackoverflow)
GB (1) GB1424473A (enrdf_load_stackoverflow)
NL (1) NL7302330A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476941A (en) * 1982-06-29 1984-10-16 Robert Bosch Gmbh Motor-driven hand-held percussion tool
EP2255928A1 (de) * 2009-05-28 2010-12-01 HILTI Aktiengesellschaft Werkzeugmaschine
US9937612B2 (en) 2014-09-05 2018-04-10 Makita Corporation Impact tool
US20200331135A1 (en) * 2019-04-18 2020-10-22 Makita Corporation Striking tool
EP4039414A1 (de) * 2021-02-09 2022-08-10 Hilti Aktiengesellschaft Elektropneumatisches schlagwerk

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2511041A1 (de) * 1975-03-13 1976-09-23 Duss Maschf Schlag- oder drehschlaghammer mit einem durch formstuecke gebildeten gehaeuseraum
US4290492A (en) * 1979-01-31 1981-09-22 Black & Decker Inc. Idling and air replenishing system for a reciprocating hammer mechanism
DE3233506A1 (de) * 1982-09-09 1984-03-15 Institut gornogo dela Sibirskogo otdelenija Akademii Nauk SSSR, Novosibirsk Schlagmaschine
DE3320426C3 (de) * 1983-06-06 1998-03-26 Hilti Ag Belüftung für den Gehäuseraum eines Bohr- oder Meisselgerätes
JPS62181382U (enrdf_load_stackoverflow) * 1986-05-09 1987-11-17
DE3743333A1 (de) * 1987-12-21 1989-07-06 Bosch Gmbh Robert Motorisch angetriebener meissel- oder bohrhammer
DE102005035099A1 (de) * 2005-07-27 2007-02-01 Robert Bosch Gmbh Schlagwerk und wenigstens schlagend antreibbare Handwerkzeugmaschine mit einem Schlagwerk
DE102006000395A1 (de) * 2006-08-07 2008-02-14 Hilti Ag Handwerkzeugmaschine mit pneumatischem Schlagwerk
DE102007062246A1 (de) * 2007-12-21 2009-06-25 Robert Bosch Gmbh Handwerkzeugmaschine
EP3257634B1 (en) * 2016-06-17 2019-02-27 Sandvik Mining and Construction Oy Arrangement in an impact unit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476941A (en) * 1982-06-29 1984-10-16 Robert Bosch Gmbh Motor-driven hand-held percussion tool
EP2255928A1 (de) * 2009-05-28 2010-12-01 HILTI Aktiengesellschaft Werkzeugmaschine
CN101920489A (zh) * 2009-05-28 2010-12-22 喜利得股份公司 工具机
US8739895B2 (en) 2009-05-28 2014-06-03 Hilti Aktiengesellschaft Machine tool
CN101920489B (zh) * 2009-05-28 2015-03-11 喜利得股份公司 工具机
US9937612B2 (en) 2014-09-05 2018-04-10 Makita Corporation Impact tool
US20200331135A1 (en) * 2019-04-18 2020-10-22 Makita Corporation Striking tool
US11529724B2 (en) * 2019-04-18 2022-12-20 Makita Corporation Striking tool
EP4039414A1 (de) * 2021-02-09 2022-08-10 Hilti Aktiengesellschaft Elektropneumatisches schlagwerk
WO2022171322A1 (de) * 2021-02-09 2022-08-18 Hilti Aktiengesellschaft Elektropneumatisches schlagwerk

Also Published As

Publication number Publication date
FR2163235A5 (enrdf_load_stackoverflow) 1973-07-20
CH542359A (de) 1973-09-30
NL7302330A (enrdf_load_stackoverflow) 1973-08-23
JPS4897174A (enrdf_load_stackoverflow) 1973-12-11
DE2207962A1 (de) 1972-08-30
DE2207962B2 (de) 1979-10-31
DE2207962C3 (de) 1980-07-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees