GB1237643A - Improved gear-change mechanism - Google Patents
Improved gear-change mechanismInfo
- Publication number
- GB1237643A GB1237643A GB1847769A GB1847769A GB1237643A GB 1237643 A GB1237643 A GB 1237643A GB 1847769 A GB1847769 A GB 1847769A GB 1847769 A GB1847769 A GB 1847769A GB 1237643 A GB1237643 A GB 1237643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sprocket
- clutch
- sprockets
- drives
- roller
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/06—Gearings
-
- 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
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Harvester Elements (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
1,237,643. Variable-speed gearing. HAYTERS Ltd. 16 March, 1970 [10 April, 1969], No. 18477/69. Heading F2D. A two-speed C.S.G. for driving the roller 10 of a power-operated lawn-mower comprises an electric or I.C. engine driven shaft 11 which drives through a spring-engaged manually released dog clutch 13 to a gear input shaft 12 on which sprockets 18 and 19 are mounted freely and via a one-way sprag clutch 22 respectively, the sprockets 18, 19 being connected via chains 26, 27 to a lay-shaft 30 in turn connected to the roller 10 via sprockets 31, 33 and a chain 32. -In first (low) speed (Fig. 1), the input shaft 12 drives through the one-way clutch 22 to the sprocket 19 which drives the roller 10 via chains 27, 32 &c. as above, the sprocket 18 freely rotating on the shaft 12. The second (high) speed (Fig. 2) is provided by axially sliding the sprocket 18, via a manual gear selector 25 and lever arm 24, into engagement with a dog-clutch peg 23 on the input 12, whereby the sprocket 18 drives the roller via chains 26, 32 &c. and the sprocket 19 overruns on the one-way spray clutch 22. It is stated that more than two-speeds can be obtained by using for example three sprockets diminishing progressively in size, the second and third of which are fitted with sprag clutches.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1847769A GB1237643A (en) | 1969-04-10 | 1969-04-10 | Improved gear-change mechanism |
NL7003890A NL7003890A (en) | 1969-04-10 | 1970-03-18 | |
DE19702014252 DE2014252A1 (en) | 1969-04-10 | 1970-03-25 | Change gears, in particular for motor lawn mowers |
AU13419/70A AU1341970A (en) | 1969-04-10 | 1970-04-06 | Improved gear-change mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1847769A GB1237643A (en) | 1969-04-10 | 1969-04-10 | Improved gear-change mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1237643A true GB1237643A (en) | 1971-06-30 |
Family
ID=10113109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1847769A Expired GB1237643A (en) | 1969-04-10 | 1969-04-10 | Improved gear-change mechanism |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU1341970A (en) |
DE (1) | DE2014252A1 (en) |
GB (1) | GB1237643A (en) |
NL (1) | NL7003890A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4662861A (en) * | 1985-11-27 | 1987-05-05 | Canadian Fram Limited | Two speed accessory drive |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8400818A (en) * | 1984-03-15 | 1985-10-01 | Lely Nv C Van Der | MOWER. |
-
1969
- 1969-04-10 GB GB1847769A patent/GB1237643A/en not_active Expired
-
1970
- 1970-03-18 NL NL7003890A patent/NL7003890A/xx unknown
- 1970-03-25 DE DE19702014252 patent/DE2014252A1/en active Pending
- 1970-04-06 AU AU13419/70A patent/AU1341970A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4662861A (en) * | 1985-11-27 | 1987-05-05 | Canadian Fram Limited | Two speed accessory drive |
Also Published As
Publication number | Publication date |
---|---|
NL7003890A (en) | 1970-10-13 |
AU1341970A (en) | 1971-10-07 |
DE2014252A1 (en) | 1970-10-15 |
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