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 wearInfo
- 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
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.
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)
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)
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 |
-
1975
- 1975-08-13 SU SU752165688A patent/SU604675A2/en active
-
1976
- 1976-07-28 DE DE19762633955 patent/DE2633955C3/en not_active Expired
- 1976-08-10 FR FR7624417A patent/FR2320812A2/en active Pending
- 1976-08-11 DD DD19428676A patent/DD126346A2/xx unknown
Cited By (5)
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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