GB2157780A - A forward-and-reverse gear suitable for motor cycles - Google Patents

A forward-and-reverse gear suitable for motor cycles Download PDF

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Publication number
GB2157780A
GB2157780A GB08403214A GB8403214A GB2157780A GB 2157780 A GB2157780 A GB 2157780A GB 08403214 A GB08403214 A GB 08403214A GB 8403214 A GB8403214 A GB 8403214A GB 2157780 A GB2157780 A GB 2157780A
Authority
GB
United Kingdom
Prior art keywords
gear
pawls
reverse gear
axle
sprocket
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.)
Withdrawn
Application number
GB08403214A
Other versions
GB8403214D0 (en
Inventor
Alan John Graham
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08403214A priority Critical patent/GB2157780A/en
Publication of GB8403214D0 publication Critical patent/GB8403214D0/en
Publication of GB2157780A publication Critical patent/GB2157780A/en
Withdrawn legal-status Critical Current

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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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • F16H3/60—Gearings for reversal only

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Gears, Cams (AREA)

Abstract

The unit consists basically of inner and outer annular gear teeth 11 and 12 and gear wheels 9. Gear teeth 11 and 12 being of unitary construction with members 4 and 2 respectively. Gear wheels 9 are locked up under normal operation with the carrier 8 connected to the members 2 by pawls 10, hence the drive is transmitted via gear teeth 12, pawls 10 to driven member 4 via gear teeth 11. With locking pawls 10 disengaged the gear wheels 9 are free to rotate when a torque is applied via sprocket 1. The direction of rotation of the drive axle 6 is reversed as a result of the now rotating gear wheels. A sprocket 1 is fixed to driving member 2. <IMAGE>

Description

SPECIFICATION Reversible drive This device relates to a reversible final drive gear.
Reverse gear is a standard feature on most vehicles and is normally an integral part of the gear box itself.
The present device sets out to enable vehicles without integral reverse gear fitted, normally motor cycles, to have a reversible final drive by direct incorporation into the sprocket/axle drive.
WITH REFERENCE TO FIGURES 1 AND 2 A sprocket type final drive 1 is suitably fixed to the driving member 2 with bolts 3.
The driving member 2 is borne by bearing 5 which is located on driven member 4. The driven member 4 is secured to the axle 6 by nuts 7. The carriage member 8 is a complete casing and houses gear wheels 9 and pawls 10. The carriage member 8 is located between members 2 and 4 in such a fashion as to permit gear wheels 9 and pawls 10 to mesh with annular gear teeth 11 and 12 respectively, the carriage member 8 is retained by ring 13. A pawl operating plate 14 is secured to carriage member 8 by screws 15.
With reference to Fig. 1. With pawls 10 engaged, the driving force is transmitted directly to the axle in the direction of the applied force. With pawls 10 Fig.2. disengaged the gear wheel g are free to rotate driving the axle mounted member 4 in the opposite direction to the applied force. The pawls engaged/disengaged position is maintained by a spring loaded ball arrangement (not shown) which is recessed into the body of the carriage member 8. A non maintained contact pawl operating device acts upon pawl plate teeth 16, this has not been included in the specification.
1. A reverse gear incorporated into the final drive sprocket with particular emphasis on the Honda type ATC tricycles and OD DESSY off the road, utility/sporting vehicles.
2. A reverse gear employing the previously described principle but varying in physical dimensions and appearance due to design modifications necessary to fix the device to different vehicles.
3. A reverse gear as in Claim 1 where the pawl locks the gear wheel directly and in fact is integral with the gear wheel assembly.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Reversible drive This device relates to a reversible final drive gear. Reverse gear is a standard feature on most vehicles and is normally an integral part of the gear box itself. The present device sets out to enable vehicles without integral reverse gear fitted, normally motor cycles, to have a reversible final drive by direct incorporation into the sprocket/axle drive. WITH REFERENCE TO FIGURES 1 AND 2 A sprocket type final drive 1 is suitably fixed to the driving member 2 with bolts 3. The driving member 2 is borne by bearing 5 which is located on driven member 4. The driven member 4 is secured to the axle 6 by nuts 7. The carriage member 8 is a complete casing and houses gear wheels 9 and pawls 10. The carriage member 8 is located between members 2 and 4 in such a fashion as to permit gear wheels 9 and pawls 10 to mesh with annular gear teeth 11 and 12 respectively, the carriage member 8 is retained by ring 13. A pawl operating plate 14 is secured to carriage member 8 by screws 15. With reference to Fig. 1. With pawls 10 engaged, the driving force is transmitted directly to the axle in the direction of the applied force. With pawls 10 Fig.2. disengaged the gear wheel g are free to rotate driving the axle mounted member 4 in the opposite direction to the applied force. The pawls engaged/disengaged position is maintained by a spring loaded ball arrangement (not shown) which is recessed into the body of the carriage member 8. A non maintained contact pawl operating device acts upon pawl plate teeth 16, this has not been included in the specification. CLAIMS
1. A reverse gear incorporated into the final drive sprocket with particular emphasis on the Honda type ATC tricycles and OD DESSY off the road, utility/sporting vehicles.
2. A reverse gear employing the previously described principle but varying in physical dimensions and appearance due to design modifications necessary to fix the device to different vehicles.
3. A reverse gear as in Claim 1 where the pawl locks the gear wheel directly and in fact is integral with the gear wheel assembly.
GB08403214A 1984-02-07 1984-02-07 A forward-and-reverse gear suitable for motor cycles Withdrawn GB2157780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08403214A GB2157780A (en) 1984-02-07 1984-02-07 A forward-and-reverse gear suitable for motor cycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08403214A GB2157780A (en) 1984-02-07 1984-02-07 A forward-and-reverse gear suitable for motor cycles

Publications (2)

Publication Number Publication Date
GB8403214D0 GB8403214D0 (en) 1984-03-14
GB2157780A true GB2157780A (en) 1985-10-30

Family

ID=10556217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08403214A Withdrawn GB2157780A (en) 1984-02-07 1984-02-07 A forward-and-reverse gear suitable for motor cycles

Country Status (1)

Country Link
GB (1) GB2157780A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193273A (en) * 1986-06-13 1988-02-03 Stephen Carl Henderson Motorcycle reversing gearing mechanism
GB2403782A (en) * 2003-07-08 2005-01-12 Russell Collinson Forward / reverse gearbox
US8926467B2 (en) 2013-03-08 2015-01-06 Harley-Davidson Motor Company Group, LLC Transmission with reverse drive assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB326660A (en) * 1929-03-07 1930-03-20 Coom Kittilsen Improvements relating to variable speed planetary gearing
GB365316A (en) * 1931-01-13 1932-01-21 Austin Hopkinson Improvements in coal-cutting machinery
GB687996A (en) * 1950-03-20 1953-02-25 Lynn Transmissions Proprietary Hydraulic automatic variable speed power transmission
GB1272469A (en) * 1969-05-07 1972-04-26 Walter Gutbrod Reversing gear with belt pulley drive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB326660A (en) * 1929-03-07 1930-03-20 Coom Kittilsen Improvements relating to variable speed planetary gearing
GB365316A (en) * 1931-01-13 1932-01-21 Austin Hopkinson Improvements in coal-cutting machinery
GB687996A (en) * 1950-03-20 1953-02-25 Lynn Transmissions Proprietary Hydraulic automatic variable speed power transmission
GB1272469A (en) * 1969-05-07 1972-04-26 Walter Gutbrod Reversing gear with belt pulley drive

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193273A (en) * 1986-06-13 1988-02-03 Stephen Carl Henderson Motorcycle reversing gearing mechanism
GB2403782A (en) * 2003-07-08 2005-01-12 Russell Collinson Forward / reverse gearbox
US8926467B2 (en) 2013-03-08 2015-01-06 Harley-Davidson Motor Company Group, LLC Transmission with reverse drive assembly

Also Published As

Publication number Publication date
GB8403214D0 (en) 1984-03-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)