GB1337944A - Electric hand tool - Google Patents
Electric hand toolInfo
- Publication number
- GB1337944A GB1337944A GB1337944DA GB1337944A GB 1337944 A GB1337944 A GB 1337944A GB 1337944D A GB1337944D A GB 1337944DA GB 1337944 A GB1337944 A GB 1337944A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- wheels
- tool spindle
- tool
- selectively
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
1337944 Portable electric tools ROBERT BOSCH GmbH 27 Sept 1972 44576/72 Headings B3C and B3N An electric hand tool has a motor housing 1, a gear housing 4, an electric motor 6 with a drive shaft 9 with gear-wheels 12 and 13, a tool spindle 16, two gear-wheels 25, 26 arranged thereon and meshing with the gear-wheels 12 and 13 and means for selectively connecting selectively one of the gear-wheels 25, 26 on the tool spindle with the tool spindle to transmit drive thereto. Drive shaft 9 has its free end journalled in the gear housing and forms a third bearing with radial clearance relative to the bearing bore of the journal. The tool in Fig. 1 has driving pins 24 transversely of the tool spindle. The gear-wheels 25, 26 have two opposite grooves 27 and enlarged cut-outs at each end. These gear-wheels can be axially moved by handle 9 and U-shaped plastics member 28 so that one of the gear-wheels can be selectively drivingly coupled with the tool spindle. In the embodiment of Fig. 2 the gear-wheels 125, 126 are axially located. Clutch discs 154, 155 are axially movable to selectively engage one of the gear-wheels by clutch cones 155. The clutch discs are drivingly connected to the tool spindle and the clutch cones on the two discs have differing apex angles.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4457672 | 1972-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1337944A true GB1337944A (en) | 1973-11-21 |
Family
ID=10433933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1337944D Expired GB1337944A (en) | 1972-09-27 | 1972-09-27 | Electric hand tool |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1337944A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5278870U (en) * | 1975-12-11 | 1977-06-13 | ||
JPS5545461U (en) * | 1978-09-18 | 1980-03-25 | ||
EP0023233A1 (en) * | 1979-07-25 | 1981-02-04 | Black & Decker Inc. | Three-speed gear mechanism in a power tool |
EP0274607A1 (en) * | 1986-12-03 | 1988-07-20 | List, Heinz-Jürgen | Medical drilling machine |
WO2009156004A1 (en) * | 2008-06-24 | 2009-12-30 | Robert Bosch Gmbh | Power tool having an adjustable clutch device and method for operating the same |
CN107598859A (en) * | 2017-11-16 | 2018-01-19 | 肖学军 | A kind of multi-functional electric tools |
CN113458454A (en) * | 2021-07-29 | 2021-10-01 | 永康市晓诚电器有限公司 | Hand-held electric drill |
WO2022206186A1 (en) * | 2021-03-31 | 2022-10-06 | 南京泉峰科技有限公司 | Handheld electric tool |
-
1972
- 1972-09-27 GB GB1337944D patent/GB1337944A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5278870U (en) * | 1975-12-11 | 1977-06-13 | ||
JPS5545461U (en) * | 1978-09-18 | 1980-03-25 | ||
EP0023233A1 (en) * | 1979-07-25 | 1981-02-04 | Black & Decker Inc. | Three-speed gear mechanism in a power tool |
EP0274607A1 (en) * | 1986-12-03 | 1988-07-20 | List, Heinz-Jürgen | Medical drilling machine |
WO2009156004A1 (en) * | 2008-06-24 | 2009-12-30 | Robert Bosch Gmbh | Power tool having an adjustable clutch device and method for operating the same |
CN107598859A (en) * | 2017-11-16 | 2018-01-19 | 肖学军 | A kind of multi-functional electric tools |
WO2022206186A1 (en) * | 2021-03-31 | 2022-10-06 | 南京泉峰科技有限公司 | Handheld electric tool |
CN113458454A (en) * | 2021-07-29 | 2021-10-01 | 永康市晓诚电器有限公司 | Hand-held electric drill |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES408120A1 (en) | Portable electric impact tool | |
ES408902A1 (en) | Portable electric impact tool | |
GB1121782A (en) | Improvements in or relating to a screw-driving appliance | |
ES422804A1 (en) | Clutch with removable hydraulic operator | |
KR860007064A (en) | Differential Akuchueta | |
IN165792B (en) | ||
ES2003175A6 (en) | Multi-step gear-box. | |
GB1337944A (en) | Electric hand tool | |
GB1329139A (en) | Multi-stage change speed gear for power-operated tools | |
ES450079A1 (en) | Impact drilling tool | |
ATE169197T1 (en) | DRIVE DEVICE FOR A KITCHEN MACHINE | |
ATE17694T1 (en) | PROPELLER SCREW WITH ADJUSTABLE BLADES. | |
GB998003A (en) | Improvements in or relating to drive-transmission devices for rotary tools | |
US1545243A (en) | Transmission gearing for machine tools and other purposes | |
US1679155A (en) | Power hand tool | |
US688505A (en) | Gearing for grinding or polishing machines. | |
US3358529A (en) | Machine tool | |
US2097944A (en) | Grinding machine | |
US2919594A (en) | Variable speed and constant power chuck for lathes and other machine tools | |
US2072339A (en) | Feed mechanism for machine tools | |
GR33328B (en) | PERFECTIONS IN OR IN RELATION TO PORTABLE TOOLS AND ACCESSORIES. | |
US3431797A (en) | Device for moving machine tool components | |
GB941650A (en) | Variable speed gearing | |
US3602056A (en) | Speed control for drive shaft | |
US3165009A (en) | Table drive transmission for milling planers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |