GB1237643A - Improved gear-change mechanism - Google Patents

Improved gear-change mechanism

Info

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
Application number
GB1847769A
Inventor
John Wilson Roberts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hayters Ltd
Original Assignee
Hayters Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hayters Ltd filed Critical Hayters Ltd
Priority to GB1847769A priority Critical patent/GB1237643A/en
Priority to NL7003890A priority patent/NL7003890A/xx
Priority to DE19702014252 priority patent/DE2014252A1/en
Priority to AU13419/70A priority patent/AU1341970A/en
Publication of GB1237643A publication Critical patent/GB1237643A/en
Expired legal-status Critical Current

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)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (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.
GB1847769A 1969-04-10 1969-04-10 Improved gear-change mechanism Expired GB1237643A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400818A (en) * 1984-03-15 1985-10-01 Lely Nv C Van Der MOWER.

Cited By (1)

* Cited by examiner, † Cited by third party
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
AU1341970A (en) 1971-10-07
NL7003890A (en) 1970-10-13
DE2014252A1 (en) 1970-10-15

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