GB1407277A - Rotary power tool with centrifugal coupling means - Google Patents
Rotary power tool with centrifugal coupling meansInfo
- Publication number
- GB1407277A GB1407277A GB5382072A GB5382072A GB1407277A GB 1407277 A GB1407277 A GB 1407277A GB 5382072 A GB5382072 A GB 5382072A GB 5382072 A GB5382072 A GB 5382072A GB 1407277 A GB1407277 A GB 1407277A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impact
- cam surfaces
- motor
- rollers
- causes
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
1407277 Impact tools S B MAURER 21 Nov 1972 53820/72 Heading B3N A rotary impact tool comprises a housing 10, a motor, an output shaft 16 having an impact receiving jaw 23, an impact element 31, a cage member 14 driven by the motor and mounting the impact element, a ring-like hammer member 25 being mounted for rotary motion essentially in unison with the impact element but being capable of limited rotary motion relative thereto, and centrifugal means, rollers 21, mounted between the cage member and the hammer member operative periodically to force the hammer member to rotate ahead of the cage member which causes the impact member to be moved radially inward to impact jaw 23. In operation the motor picks up speed until rollers 21 are forced outwardly. This movement causes the hammer member to rotate ahead of the cage member through the rollers engaging cam surfaces 38. The relative rotation also causes cam surfaces 34 to move the impact elements inwardly. Cam surfaces are also provided for reverse rotation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5382072A GB1407277A (en) | 1972-11-21 | 1972-11-21 | Rotary power tool with centrifugal coupling means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5382072A GB1407277A (en) | 1972-11-21 | 1972-11-21 | Rotary power tool with centrifugal coupling means |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1407277A true GB1407277A (en) | 1975-09-24 |
Family
ID=10469084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5382072A Expired GB1407277A (en) | 1972-11-21 | 1972-11-21 | Rotary power tool with centrifugal coupling means |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1407277A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1621290A1 (en) * | 2004-07-30 | 2006-02-01 | HILTI Aktiengesellschaft | Machine tool with intermittent angular momentum |
-
1972
- 1972-11-21 GB GB5382072A patent/GB1407277A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1621290A1 (en) * | 2004-07-30 | 2006-02-01 | HILTI Aktiengesellschaft | Machine tool with intermittent angular momentum |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |