GB1297591A - - Google Patents
Info
- Publication number
- GB1297591A GB1297591A GB1297591DA GB1297591A GB 1297591 A GB1297591 A GB 1297591A GB 1297591D A GB1297591D A GB 1297591DA GB 1297591 A GB1297591 A GB 1297591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- groove
- impact
- follower
- hammer
- anvil
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/22—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts
- F16L37/23—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts by means of balls
-
- 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
- B25B21/026—Impact clutches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1297591 Impact wrenches ATLAS COPCO AB 7 Jan 1971 [14 Jan 1970] 720/71 Heading B3N A rotary impact motor comprises an anvil 19 with a hammer 34 rotatably surrounding the anvil, a peripheral groove 30 on and circumferentially around the anvil, an impact surface or surfaces 31, 32 in said groove, an impact dog 37 axially movable but non-rotatably supported in the hammer for taking impact and release positions, a radially inwardly directed follower 40 in said impact dog in engagement with the groove, the groove providing an axial cam rise for moving the follower lug to an impact position during relative movement between the hammer and the anvil, see Fig. 7, and means for providing an axial bias on the impact dog for moving it to a release position. The groove is a screw groove and the means for providing an axial power bias is an oblique groove 41 in a driving member 24 and a ball 42 which engages in the groove and a recess 39 in the impact dog. This ball also provides the driving connection between member 24 and the hammer 34. In clockwise operation after an impact of the follower against face 31 the relative positions of part of the motor are shown in Fig. 7. Further rotation of the hammer and driving member occurs with the anvil stationary. This causes ball 42 to move to the other end of groove 41 and thus cause the follower member to move in the same direction out of engagement with face 31 and into alignment with groove 30. The follower then moves along the groove for another impact. The drive for the motor is a conventional reversible pneumatic vane motor. In an alternative embodiment, Figs. 10-12, (not.shown), the groove is a ring groove having a cam crest bordered by cam surfaces and the cam follower has a cam crest bordered by cam surfaces, The groove 41 is replaced by a V-shaped ball groove.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE00421/70A SE347685B (en) | 1970-01-14 | 1970-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1297591A true GB1297591A (en) | 1972-11-22 |
Family
ID=20256546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1297591D Expired GB1297591A (en) | 1970-01-14 | 1971-01-07 |
Country Status (10)
Country | Link |
---|---|
US (1) | US3675726A (en) |
BE (1) | BE761523A (en) |
CA (1) | CA929050A (en) |
CH (1) | CH517565A (en) |
DE (1) | DE2100550A1 (en) |
FR (1) | FR2075316A5 (en) |
GB (1) | GB1297591A (en) |
NL (1) | NL7100109A (en) |
SE (1) | SE347685B (en) |
ZA (1) | ZA7136B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010043099A1 (en) * | 2010-10-29 | 2012-05-03 | Robert Bosch Gmbh | Hand tool with a mechanical percussion |
US12048988B2 (en) | 2020-12-08 | 2024-07-30 | Snap-On Incorporated | Impact mechanism for a rotary impact tool |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3001429A (en) * | 1959-04-16 | 1961-09-26 | Master Power Corp | Rotary impact wrench |
US3001428A (en) * | 1960-02-23 | 1961-09-26 | Master Power Corp | Rotary impact wrench |
US3253662A (en) * | 1961-10-20 | 1966-05-31 | Cooper Bessemer Corp | Controlled torque tool |
DE1218370B (en) * | 1963-09-27 | 1966-06-02 | Bosch Gmbh Robert | Motor-driven, especially portable screwdriver |
US3272265A (en) * | 1964-03-26 | 1966-09-13 | Ingersoll Rand Co | Rotary impact tool |
-
1970
- 1970-01-14 SE SE00421/70A patent/SE347685B/xx unknown
-
1971
- 1971-01-04 ZA ZA710036A patent/ZA7136B/en unknown
- 1971-01-05 US US104045A patent/US3675726A/en not_active Expired - Lifetime
- 1971-01-05 CA CA101974A patent/CA929050A/en not_active Expired
- 1971-01-06 NL NL7100109A patent/NL7100109A/xx unknown
- 1971-01-07 DE DE19712100550 patent/DE2100550A1/en active Pending
- 1971-01-07 GB GB1297591D patent/GB1297591A/en not_active Expired
- 1971-01-08 FR FR7100422A patent/FR2075316A5/fr not_active Expired
- 1971-01-13 BE BE761523A patent/BE761523A/en unknown
- 1971-01-14 CH CH57871A patent/CH517565A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2075316A5 (en) | 1971-10-08 |
BE761523A (en) | 1971-06-16 |
DE2100550A1 (en) | 1971-07-22 |
US3675726A (en) | 1972-07-11 |
CH517565A (en) | 1972-01-15 |
SE347685B (en) | 1972-08-14 |
ZA7136B (en) | 1971-10-27 |
NL7100109A (en) | 1971-07-16 |
CA929050A (en) | 1973-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |