GB2010451A - Power Assisted Trailer - Google Patents

Power Assisted Trailer

Info

Publication number
GB2010451A
GB2010451A GB7848693A GB7848693A GB2010451A GB 2010451 A GB2010451 A GB 2010451A GB 7848693 A GB7848693 A GB 7848693A GB 7848693 A GB7848693 A GB 7848693A GB 2010451 A GB2010451 A GB 2010451A
Authority
GB
United Kingdom
Prior art keywords
trailer
motor
towing vehicle
piston
fed
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.)
Granted
Application number
GB7848693A
Other versions
GB2010451B (en
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.)
Reed & Upton Ltd
Original Assignee
Reed & Upton 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 Reed & Upton Ltd filed Critical Reed & Upton Ltd
Priority to GB7848693A priority Critical patent/GB2010451B/en
Publication of GB2010451A publication Critical patent/GB2010451A/en
Application granted granted Critical
Publication of GB2010451B publication Critical patent/GB2010451B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D59/00—Trailers with driven ground wheels or the like
    • B62D59/02—Trailers with driven ground wheels or the like driven from external propulsion unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

A trailer having a vane type hydraulic drive motor (14) arranged to be fed by a pump (26) on a towing vehicle is fitted with a tow bar (60) coupled to a piston (42) arranged to pressurize the vent line (34) of the motor in response to relative movement between the towing vehicle (10) and the trailer (12) so as to disable the motor and permit freewheeling of the trailer when the motor is not being fed with hydraulic fluid by the towing vehicle. The piston is centred by springs (70, 80) connected to a pivoted lever (75) which is connected by a Bowden cable (90, 92) to a reversing valve (22), the lever also being manually operable to prime the system when the trailer is to be manoeuvred otherwise than by a towing vehicle. A removable stop (84) prevents the overrun mode of operation of the trailer from reversing the direction of hydraulic fluid flow to the motor (14). <IMAGE>
GB7848693A 1977-12-17 1978-12-13 Trailed vehicles Expired GB2010451B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7848693A GB2010451B (en) 1977-12-17 1978-12-13 Trailed vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5259277 1977-12-17
GB7848693A GB2010451B (en) 1977-12-17 1978-12-13 Trailed vehicles

Publications (2)

Publication Number Publication Date
GB2010451A true GB2010451A (en) 1979-06-27
GB2010451B GB2010451B (en) 1982-06-16

Family

ID=26267098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7848693A Expired GB2010451B (en) 1977-12-17 1978-12-13 Trailed vehicles

Country Status (1)

Country Link
GB (1) GB2010451B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054500A1 (en) * 1980-12-16 1982-06-23 Jean-Claude Fouquet Hydraulic driving device for a tractor-coupled semi-trailer
FR2501142A1 (en) * 1981-03-04 1982-09-10 Howard Machinery AUXILIARY DRIVE DEVICE OF A TRAILER VEHICLE AXLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054500A1 (en) * 1980-12-16 1982-06-23 Jean-Claude Fouquet Hydraulic driving device for a tractor-coupled semi-trailer
FR2501142A1 (en) * 1981-03-04 1982-09-10 Howard Machinery AUXILIARY DRIVE DEVICE OF A TRAILER VEHICLE AXLE

Also Published As

Publication number Publication date
GB2010451B (en) 1982-06-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee