GB981492A - Improvements in percussion drills - Google Patents
Improvements in percussion drillsInfo
- Publication number
- GB981492A GB981492A GB4843963A GB4843963A GB981492A GB 981492 A GB981492 A GB 981492A GB 4843963 A GB4843963 A GB 4843963A GB 4843963 A GB4843963 A GB 4843963A GB 981492 A GB981492 A GB 981492A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- disc
- ribs
- spindle
- movement
- 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
- 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
- B25D11/106—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 cam member and cam follower having the same shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
- B62D49/06—Tractors adapted for multi-purpose use
- B62D49/0685—Reversible tractors adapted for shuttle work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
981,492. Drilling machine details. ROBERT BOSCH G.m.b.H. Dec. 9, 1963 [Dec. 12 1962], No. 48439/63. Heading B3C. [Also in Division B4C] A rotary-percussive drill comprises a tool spindle 12 guided for axial movement in a gear housing 10 having a thrust bearing 20, 21 contained in an axially displaceable adjusting sleeve 19, the sleeve being formed with at least one inclined surface for engagement with a corresponding surface 34 on a disc 25 formed with ribs 29 such that, upon rotation of the sleeve, ribs on a second disc 23 are brought into engagement with those on the disc 25 in order to effect percussive movement of the spindle. In operation, in order to provide rotary motion only of the spindle 12, the sleeve is rotated such as to withdraw the ribs on the disc 23 out of contact with those on the disc 25, the sleeve being retained in this position by means of a spring-loaded plunger 42 engaging in a dimple 45 in the sleeve; the plunger also engages in a groove 44 formed in the sleeve during the rotary movement.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1962B0069944 DE1204126C2 (en) | 1962-12-12 | 1962-12-12 | MOTOR-DRIVEN DRILLING MACHINE THAT CAN BE USED BOTH FOR IMPACT AND ROTARY DRILLING |
Publications (1)
Publication Number | Publication Date |
---|---|
GB981492A true GB981492A (en) | 1965-01-27 |
Family
ID=6976481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4843963A Expired GB981492A (en) | 1962-12-12 | 1963-12-09 | Improvements in percussion drills |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH406031A (en) |
DE (1) | DE1204126C2 (en) |
GB (1) | GB981492A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695365A (en) * | 1969-11-14 | 1972-10-03 | Bosch Gmbh Robert | Torque and impulse transmitting machine |
EP0051923A1 (en) * | 1980-11-11 | 1982-05-19 | Kango Wolf Power Tools Limited | Portable power-operated drill |
CN102069475A (en) * | 2009-11-20 | 2011-05-25 | 南京德朔实业有限公司 | Dynamic hammer |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2715682C3 (en) * | 1977-04-07 | 1982-05-27 | Metabowerke KG Closs, Rauch & Schnizler, 7440 Nürtingen | Impact drill with notches fixed to the housing |
DE4013512A1 (en) * | 1990-04-27 | 1991-10-31 | Black & Decker Inc | SWITCHING DEVICE FOR SWITCHING A POWERED TOOL |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2630723A (en) * | 1947-08-30 | 1953-03-10 | New Britain Machine Co | Drill head |
DE1105332B (en) * | 1956-01-27 | 1961-04-20 | Friedrich Muthmann | Electric motor-driven hammer drill |
DE1155657B (en) * | 1959-12-24 | 1963-10-10 | Bosch Gmbh Robert | Hand drill |
-
1962
- 1962-12-12 DE DE1962B0069944 patent/DE1204126C2/en not_active Expired
-
1963
- 1963-12-03 CH CH1475663A patent/CH406031A/en unknown
- 1963-12-09 GB GB4843963A patent/GB981492A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695365A (en) * | 1969-11-14 | 1972-10-03 | Bosch Gmbh Robert | Torque and impulse transmitting machine |
EP0051923A1 (en) * | 1980-11-11 | 1982-05-19 | Kango Wolf Power Tools Limited | Portable power-operated drill |
CN102069475A (en) * | 2009-11-20 | 2011-05-25 | 南京德朔实业有限公司 | Dynamic hammer |
CN102069475B (en) * | 2009-11-20 | 2013-08-21 | 南京德朔实业有限公司 | Dynamic hammer |
Also Published As
Publication number | Publication date |
---|---|
CH406031A (en) | 1966-01-15 |
DE1204126B (en) | 1965-10-28 |
DE1204126C2 (en) | 1975-02-27 |
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