GB2276344A - Power tool - Google Patents
Power toolInfo
- Publication number
- GB2276344A GB2276344A GB9411730A GB9411730A GB2276344A GB 2276344 A GB2276344 A GB 2276344A GB 9411730 A GB9411730 A GB 9411730A GB 9411730 A GB9411730 A GB 9411730A GB 2276344 A GB2276344 A GB 2276344A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- power tool
- cam member
- partake
- cam
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/10—Means for driving the impulse member comprising a cam mechanism
- B25D11/102—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/006—Mode changers; Mechanisms connected thereto
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Harvester Elements (AREA)
Abstract
The invention relates to portable power tool means intended to form part of a power tool or a conversion unit adapted to be fitted to the shaft of a power tool. The tool means includes a rotary cam member (6, 8) having an internal sinusoidal cam track (12) in which cam followers (26) of an output shaft (2) are received. When the cam member (6, 8) rotates, the shaft (2) is caused to partake of a lengthwise reciprocating movement suitable for application to a scraper bit or other tool kit such as a chisel. In an example of the invention, the shaft (86) passes through a fixed bearing ring (88), a slidable sleeve (96) being provided to control engagement of the shaft (86) via a key member (104) with portions of the ring (88) or the cam member (76), so as to enable the shaft (86) to partake of lengthwise movement or to be convertible to rotational movement, as selected bay the operator. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9411730A GB2276344B (en) | 1992-12-18 | 1994-06-10 | Power tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/GB1992/002352 WO1993011910A1 (en) | 1991-12-19 | 1992-12-18 | Power tool |
GB9411730A GB2276344B (en) | 1992-12-18 | 1994-06-10 | Power tool |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9411730D0 GB9411730D0 (en) | 1994-08-03 |
GB2276344A true GB2276344A (en) | 1994-09-28 |
GB2276344B GB2276344B (en) | 1995-02-01 |
Family
ID=10756581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9411730A Expired - Lifetime GB2276344B (en) | 1992-12-18 | 1994-06-10 | Power tool |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2276344B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009071908A1 (en) * | 2007-12-04 | 2009-06-11 | Impact | Power tool |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB186142A (en) * | 1921-06-20 | 1922-09-20 | Henry George Kessler | Improvements in and relating to power operated portable hammers, drills and the like |
CH113785A (en) * | 1926-04-24 | 1926-02-16 | August Mueller | Device for applying blows. |
FR775120A (en) * | 1934-03-17 | 1934-12-20 | Schmid & Wezel | Mechanically operated scraping tool |
GB612866A (en) * | 1946-06-03 | 1948-11-18 | Wodack Electric Tool Corp | Improvements in or relating to percussive tools |
US2474056A (en) * | 1945-03-09 | 1949-06-21 | Leo M Larsen | Reciprocating tool |
DE1190860B (en) * | 1955-06-27 | 1965-04-08 | Ansbacher Maschinen Und Werkze | Hammer drill |
GB2219958A (en) * | 1988-06-23 | 1989-12-28 | Hugh Edward Fisher | Power tool |
-
1994
- 1994-06-10 GB GB9411730A patent/GB2276344B/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB186142A (en) * | 1921-06-20 | 1922-09-20 | Henry George Kessler | Improvements in and relating to power operated portable hammers, drills and the like |
CH113785A (en) * | 1926-04-24 | 1926-02-16 | August Mueller | Device for applying blows. |
FR775120A (en) * | 1934-03-17 | 1934-12-20 | Schmid & Wezel | Mechanically operated scraping tool |
US2474056A (en) * | 1945-03-09 | 1949-06-21 | Leo M Larsen | Reciprocating tool |
GB612866A (en) * | 1946-06-03 | 1948-11-18 | Wodack Electric Tool Corp | Improvements in or relating to percussive tools |
DE1190860B (en) * | 1955-06-27 | 1965-04-08 | Ansbacher Maschinen Und Werkze | Hammer drill |
GB2219958A (en) * | 1988-06-23 | 1989-12-28 | Hugh Edward Fisher | Power tool |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009071908A1 (en) * | 2007-12-04 | 2009-06-11 | Impact | Power tool |
Also Published As
Publication number | Publication date |
---|---|
GB9411730D0 (en) | 1994-08-03 |
GB2276344B (en) | 1995-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |
Expiry date: 20121217 |