GB1428021A - Shaft drive mechanism incorporating a clearance take-up device - Google Patents
Shaft drive mechanism incorporating a clearance take-up deviceInfo
- Publication number
- GB1428021A GB1428021A GB1493973A GB1493973A GB1428021A GB 1428021 A GB1428021 A GB 1428021A GB 1493973 A GB1493973 A GB 1493973A GB 1493973 A GB1493973 A GB 1493973A GB 1428021 A GB1428021 A GB 1428021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- spring
- driven
- torque
- clearance
- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H55/18—Special devices for taking up backlash
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Braking Arrangements (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
1428021 One-way friction brakes GITAC 28 March 1973 [29 March 1972] 14939/73 Heading F2E A shaft drive mechanism which includes a driven shaft and a device for taking up the clearance between two contacting elements of the mechanism makes use of resilient retardation of the driven shaft and comprises a spiral spring having at least one convolution prestressed between the driven shaft and an abutment and tending to apply to the shaft a torque in the opposite direction to the normal direction of rotation imparted to the shaft. As shown in Fig. 1, meshing teeth on pinions 3 and 2 on driving shaft 4 and driven shaft 1 respectively have clearance, compensated for by placing around shaft 1 a spiral spring 5 having one end secured to a stationary abutment 6 and the other end bearing frictionally against shaft 1. The spring is pre-tensioned so that its convolutions have a tendency to tighten, so that with the shaft 1 being driven in the counter-clockwise direction f 2 , the spring applies a torque in the clockwise direction. In Fig. 2, the inner end 5b of the spring is located between two friction shoes 7, 7a, disposed on shaft 1 and pressed into contact therewith by the innermost convolution of the spring. The shoes may be interconnected by a flexible strip or hinge, or they may be replaced by a split sleeve. In Fig. 4 (not shown) a pre-tensioned spiral spring has its inner end in frictional engagement with a shaft and its outer end in frictional engagement with the inner surface of a drum. When either the shaft or the drum is driven in the direction to wind up the spring further, the required frictional torque is applied. Either or both ends of the spring may have a friction shoe attached (Fig. 5, not shown). Shaft 1 may be the hand-setting shaft of a timepiece or the needle shaft of an indicating instrument.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7211060A FR2178359A5 (en) | 1972-03-29 | 1972-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1428021A true GB1428021A (en) | 1976-03-17 |
Family
ID=9096015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1493973A Expired GB1428021A (en) | 1972-03-29 | 1973-03-28 | Shaft drive mechanism incorporating a clearance take-up device |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2315576A1 (en) |
ES (1) | ES412953A1 (en) |
FR (1) | FR2178359A5 (en) |
GB (1) | GB1428021A (en) |
IT (1) | IT984425B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105988211A (en) * | 2015-01-28 | 2016-10-05 | 上海微电子装备有限公司 | Dual-lens laser attenuation device capable of realizing full-open mode |
US20190041276A1 (en) * | 2016-04-20 | 2019-02-07 | Daegu Gyeongbuk Institute Of Science And Technology | Elastically actuating device |
CN110248773A (en) * | 2017-03-09 | 2019-09-17 | Abb瑞士股份有限公司 | Static torque regulating device, the industrial robot including the device and the method for adjusting static torque |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106224497B (en) * | 2016-09-22 | 2018-11-27 | 苏州顺革智能科技有限公司 | A kind of gear with combination axle sleeve |
-
1972
- 1972-03-29 FR FR7211060A patent/FR2178359A5/fr not_active Expired
-
1973
- 1973-03-22 IT IT6782773A patent/IT984425B/en active
- 1973-03-23 ES ES412953A patent/ES412953A1/en not_active Expired
- 1973-03-28 GB GB1493973A patent/GB1428021A/en not_active Expired
- 1973-03-28 DE DE19732315576 patent/DE2315576A1/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105988211A (en) * | 2015-01-28 | 2016-10-05 | 上海微电子装备有限公司 | Dual-lens laser attenuation device capable of realizing full-open mode |
US20190041276A1 (en) * | 2016-04-20 | 2019-02-07 | Daegu Gyeongbuk Institute Of Science And Technology | Elastically actuating device |
US10533904B2 (en) * | 2016-04-20 | 2020-01-14 | Daegu Gyeongbuk Institute Of Science And Technology | Elastically actuating device |
CN110248773A (en) * | 2017-03-09 | 2019-09-17 | Abb瑞士股份有限公司 | Static torque regulating device, the industrial robot including the device and the method for adjusting static torque |
CN110248773B (en) * | 2017-03-09 | 2023-05-09 | Abb瑞士股份有限公司 | Static torque adjusting device, industrial robot comprising the device and method for adjusting static torque |
Also Published As
Publication number | Publication date |
---|---|
ES412953A1 (en) | 1976-01-16 |
DE2315576A1 (en) | 1973-10-11 |
FR2178359A5 (en) | 1973-11-09 |
IT984425B (en) | 1974-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |