DE3879861D1 - VIBRATION PROTECTION DEVICE IN A PNEUMATIC-OPERATED CHISEL HAMMER. - Google Patents

VIBRATION PROTECTION DEVICE IN A PNEUMATIC-OPERATED CHISEL HAMMER.

Info

Publication number
DE3879861D1
DE3879861D1 DE8888116441T DE3879861T DE3879861D1 DE 3879861 D1 DE3879861 D1 DE 3879861D1 DE 8888116441 T DE8888116441 T DE 8888116441T DE 3879861 T DE3879861 T DE 3879861T DE 3879861 D1 DE3879861 D1 DE 3879861D1
Authority
DE
Germany
Prior art keywords
shank
bore
pneumatic
protection device
chisel
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 - Lifetime
Application number
DE8888116441T
Other languages
German (de)
Inventor
Kurt Aigner
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.)
Weha Ludwig Werwein GmbH
Original Assignee
Weha Ludwig Werwein 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 Weha Ludwig Werwein GmbH filed Critical Weha Ludwig Werwein GmbH
Priority to DE8888116441T priority Critical patent/DE3879861D1/en
Application granted granted Critical
Publication of DE3879861D1 publication Critical patent/DE3879861D1/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
    • B25D17/04—Handles; Handle mountings
    • B25D17/046—Sleeve-like handles surrounding the tool bit

Landscapes

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

Abstract

The pneumatic impact chisel has a piston working in a cylinder bore (2) against the chisel shank (8). An axial bore (3) in the cylinder (1) accommodates the shank rear end (7), while a protective sleeve (12) encloses the shank. An intermediate piece (5) has a rear stem (4) fitting in the bore, also a further bore (6) for the rear shank end. The sleeve fits loosely round the shank, and stops (14) limit its movement w.r.t. the shank in the direction of the chisel tip (13). Pref. a coil spring (10) is between the intermediate piece and the sleeve, holding the latter against the stop.
DE8888116441T 1987-10-17 1988-10-05 VIBRATION PROTECTION DEVICE IN A PNEUMATIC-OPERATED CHISEL HAMMER. Expired - Lifetime DE3879861D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888116441T DE3879861D1 (en) 1987-10-17 1988-10-05 VIBRATION PROTECTION DEVICE IN A PNEUMATIC-OPERATED CHISEL HAMMER.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE8713979 1987-10-17
DE8716386U DE8716386U1 (en) 1987-10-17 1987-12-11 Pneumatically operated chisel hammer
DE8888116441T DE3879861D1 (en) 1987-10-17 1988-10-05 VIBRATION PROTECTION DEVICE IN A PNEUMATIC-OPERATED CHISEL HAMMER.

Publications (1)

Publication Number Publication Date
DE3879861D1 true DE3879861D1 (en) 1993-05-06

Family

ID=25952131

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8716386U Expired DE8716386U1 (en) 1987-10-17 1987-12-11 Pneumatically operated chisel hammer
DE8888116441T Expired - Lifetime DE3879861D1 (en) 1987-10-17 1988-10-05 VIBRATION PROTECTION DEVICE IN A PNEUMATIC-OPERATED CHISEL HAMMER.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8716386U Expired DE8716386U1 (en) 1987-10-17 1987-12-11 Pneumatically operated chisel hammer

Country Status (2)

Country Link
EP (1) EP0312831B1 (en)
DE (2) DE8716386U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008674A1 (en) * 1993-09-16 1995-03-30 Milleen Constructions Pty. Ltd. Piling bell
AU680296B2 (en) * 1993-09-16 1997-07-24 Milleen Constructions Pty Ltd Piling bell

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1451102A (en) * 1922-04-17 1923-04-10 Philip T Ulmer Nonvibratory tool guide
US2929361A (en) * 1957-08-09 1960-03-22 Ingersoll Rand Co Buffer
SU604675A2 (en) * 1975-08-13 1978-04-30 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Механизированного И Ручного Строительно-Монтажного Инструмента,Вибраторов И Строительно-Отделочных Машин Impact-action machine
DE3520036A1 (en) * 1985-06-04 1986-12-04 "F. u. K." Frölich & Klüpfel Drucklufttechnik GmbH & Co KG, 5600 Wuppertal Inscription hammer
SE452426B (en) * 1985-06-19 1987-11-30 Eskil Sundstrom VIBRATION DUMPING HANDLE

Also Published As

Publication number Publication date
EP0312831A1 (en) 1989-04-26
DE8716386U1 (en) 1988-02-11
EP0312831B1 (en) 1993-03-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition