GB1413720A - Sound attenuating device for a work steel - Google Patents

Sound attenuating device for a work steel

Info

Publication number
GB1413720A
GB1413720A GB2474273A GB2474273A GB1413720A GB 1413720 A GB1413720 A GB 1413720A GB 2474273 A GB2474273 A GB 2474273A GB 2474273 A GB2474273 A GB 2474273A GB 1413720 A GB1413720 A GB 1413720A
Authority
GB
United Kingdom
Prior art keywords
steel
opening
elastomeric material
percussive
sound attenuating
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
GB2474273A
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.)
Thor Power Tool Co
Original Assignee
Thor Power Tool Co
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 Thor Power Tool Co filed Critical Thor Power Tool Co
Publication of GB1413720A publication Critical patent/GB1413720A/en
Expired 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
    • B25D17/02—Percussive tool bits
    • 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
    • B25D17/11—Arrangements of noise-damping means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

1413720 Percussive tools THOR POWER TOOL CO 23 May 1973 [7 June 1972] 24742/73 Heading B4C A sound attenuating device for the steel 20 of a percussive tool comprises a tube 41 and a liner 42 of elastomeric material such as natural gum rubber, at least a portion of the opening 44 in the liner for the steel being of smaller crosssection than that of the steel. The elastomeric material may be injected through openings 46-49 and vulcanized while in a mould. The opening 44 may be tapered to facilitate mounting of the device against a shoulder 26 and compression relief grooves 57 may be provided in the opening in alignment with the corner edges of the hexagonal cross-section of the steel. The tube is cut away at 50 to accommodate a latch lever 29. In order to balance compressive forces, the side of the elastomeric material 42 opposite to the cut-away 50 may be recessed at 59. The percussive drill may be pneumatically operated under the control of a throttle lever 14.
GB2474273A 1972-06-07 1973-05-23 Sound attenuating device for a work steel Expired GB1413720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26037372A 1972-06-07 1972-06-07

Publications (1)

Publication Number Publication Date
GB1413720A true GB1413720A (en) 1975-11-12

Family

ID=22988911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2474273A Expired GB1413720A (en) 1972-06-07 1973-05-23 Sound attenuating device for a work steel

Country Status (3)

Country Link
US (1) US3783970A (en)
CA (1) CA982489A (en)
GB (1) GB1413720A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE371770B (en) * 1972-11-22 1974-12-02 Atlas Copco Ab
FI60514C (en) * 1978-07-04 1982-02-10 Tampella Oy Ab LJUDDAEMPARE FOER BORRMASKIN
DE2844110A1 (en) * 1978-10-10 1980-04-24 Bosch Gmbh Robert HAND TOOL MACHINE, ESPECIALLY CHISEL HAMMER
DE2851160A1 (en) * 1978-11-25 1980-06-04 Wacker Werke Kg DEVICE FOR REDUCING NOISE DEVELOPMENT ON THE TOOLS OF DRILLING AND BURNING HAMMER
US4284284A (en) * 1979-01-31 1981-08-18 Black & Decker Inc. Retainer arrangement for tools
EP0522190B1 (en) * 1991-07-10 1995-04-12 Ingersoll-Rand Company Limited Sound attenuated chuck for hydraulically or pneumatically powered impact- and drillhammers
US5407018A (en) * 1994-01-10 1995-04-18 Tc Services Pneumatic impact tool having improved vibration and noise attenuation
KR200151343Y1 (en) * 1995-04-14 1999-07-15 최해성 The hydraulic hammer of low noise type
US20040238270A1 (en) * 2003-06-02 2004-12-02 Shih-Lin Chang Noise elimination device for a table height adjustment
SE528470C2 (en) * 2004-02-03 2006-11-21 Mircona Ab Vibration-damped tool holder with viscoelastic damping material
SE528247C2 (en) * 2004-05-07 2006-10-03 Mircona Ab Vibration dampened tool holder
US9278443B2 (en) 2006-12-07 2016-03-08 Terminator Ip Limited Breaking machine shock absorbing apparatus
NZ551876A (en) * 2006-12-07 2009-06-26 Rocktec Ltd Breaking machine shock absorbing system
US8689930B2 (en) * 2012-03-29 2014-04-08 Westerngeco L.L.C. Seismic vibrator having airwave suppression
EP3067152A1 (en) * 2015-03-10 2016-09-14 HILTI Aktiengesellschaft Driving sleeve in tool holder
WO2017199823A1 (en) * 2016-05-18 2017-11-23 株式会社マキタ Impact tool
ZA201902043B (en) * 2019-04-02 2019-11-27 Rhosch Eng Pty Ltd Drill steel and its manufacture

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB332914A (en) * 1929-04-12 1930-07-14 Johannesburg Cons Invest Compa Improvements in or relating to drill steels
GB521323A (en) * 1938-12-02 1940-05-17 Wearne Dunstan Improvements in shank formations of percussive drilling tools
US2716393A (en) * 1949-03-17 1955-08-30 Chicago Pneumatic Tool Co Chipping hammer tool retainer
US2685274A (en) * 1951-04-12 1954-08-03 Phyllis E Liddicoat Pneumatic tool
US2830792A (en) * 1954-10-13 1958-04-15 Ingersoll Rand Co Collar for drill steels
US2889811A (en) * 1956-08-10 1959-06-09 Electro Chimie Metal Percussion tools
US3179185A (en) * 1962-06-14 1965-04-20 Chicago Pneumatic Tool Co Demolition tool with shock attenuating means
US3263770A (en) * 1964-10-19 1966-08-02 Atlas Copco Ab Noise deadening means for percussive tools
US3662855A (en) * 1970-05-04 1972-05-16 Robert D Adams Muffled tool for vibratory or impact machines

Also Published As

Publication number Publication date
AU5553573A (en) 1974-11-14
CA982489A (en) 1976-01-27
US3783970A (en) 1974-01-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee