FR2320812A2 - Pneumatic hammer with flattened shaft - has rollers preventing direct contact between tool and hood for reducing wear - Google Patents

Pneumatic hammer with flattened shaft - has rollers preventing direct contact between tool and hood for reducing wear

Info

Publication number
FR2320812A2
FR2320812A2 FR7624417A FR7624417A FR2320812A2 FR 2320812 A2 FR2320812 A2 FR 2320812A2 FR 7624417 A FR7624417 A FR 7624417A FR 7624417 A FR7624417 A FR 7624417A FR 2320812 A2 FR2320812 A2 FR 2320812A2
Authority
FR
France
Prior art keywords
tool
hood
direct contact
rollers
pneumatic 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.)
Pending
Application number
FR7624417A
Other languages
French (fr)
Inventor
I V Nikolaev
L A Gornik
A I Lednikov
L M Dronova
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.)
PK I
Original Assignee
PK I
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 PK I filed Critical PK I
Publication of FR2320812A2 publication Critical patent/FR2320812A2/en
Pending 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 hammer has housing and a sliding barrel for holding a tool with a collar. The impact piston within the barrel is loaded with compressed air. The tool is held on the barrel in a noncircular bore with transverse holding pins. Direct contact between the machine hood and tool side wall is prevented so that no vibrations are transmitted to the worker. This arrangement simplifies the hammer guide and reduces hood wear. Between the front part of the hood (16) and the tool (6) are arranged intermediate rods or rollers (52) in contact with the tool (6). These truncate the sides of the opening to form an opening of noncircular shape which matches flats on the sides of the tool (6). The intermediate rollers are arranged in crossed pairs in different planes at right angles to the tool axis.
FR7624417A 1975-08-13 1976-08-10 Pneumatic hammer with flattened shaft - has rollers preventing direct contact between tool and hood for reducing wear Pending FR2320812A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752165688A SU604675A2 (en) 1975-08-13 1975-08-13 Impact-action machine

Publications (1)

Publication Number Publication Date
FR2320812A2 true FR2320812A2 (en) 1977-03-11

Family

ID=20629617

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7624417A Pending FR2320812A2 (en) 1975-08-13 1976-08-10 Pneumatic hammer with flattened shaft - has rollers preventing direct contact between tool and hood for reducing wear

Country Status (4)

Country Link
DD (1) DD126346A2 (en)
DE (1) DE2633955C3 (en)
FR (1) FR2320812A2 (en)
SU (1) SU604675A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312831A1 (en) * 1987-10-17 1989-04-26 Weha- Ludwig Werwein Gmbh Vibration isolator for a pneumatic chiselling hammer
GB2394202A (en) * 2002-10-18 2004-04-21 Black & Decker Inc Tool holder for impacting machine
WO2024073196A1 (en) * 2022-09-30 2024-04-04 Caterpillar Inc. Rods for engaging a tool of a hammer within a housing of the hammer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520036A1 (en) * 1985-06-04 1986-12-04 "F. u. K." Frölich & Klüpfel Drucklufttechnik GmbH & Co KG, 5600 Wuppertal Inscription hammer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312831A1 (en) * 1987-10-17 1989-04-26 Weha- Ludwig Werwein Gmbh Vibration isolator for a pneumatic chiselling hammer
GB2394202A (en) * 2002-10-18 2004-04-21 Black & Decker Inc Tool holder for impacting machine
CN100341675C (en) * 2002-10-18 2007-10-10 布莱克-德克尔公司 Tool-clamp of impactor
US8672053B2 (en) 2002-10-18 2014-03-18 Black & Decker Inc. Tool holder for impacting machine
WO2024073196A1 (en) * 2022-09-30 2024-04-04 Caterpillar Inc. Rods for engaging a tool of a hammer within a housing of the hammer

Also Published As

Publication number Publication date
DE2633955C3 (en) 1979-07-12
DE2633955B2 (en) 1978-11-02
DE2633955A1 (en) 1977-03-03
SU604675A2 (en) 1978-04-30
DD126346A2 (en) 1977-07-13

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