GB1367764A - Trailers - Google Patents

Trailers

Info

Publication number
GB1367764A
GB1367764A GB5234870A GB5234870A GB1367764A GB 1367764 A GB1367764 A GB 1367764A GB 5234870 A GB5234870 A GB 5234870A GB 5234870 A GB5234870 A GB 5234870A GB 1367764 A GB1367764 A GB 1367764A
Authority
GB
United Kingdom
Prior art keywords
trailer
rod
link
brakes
lift
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
GB5234870A
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.)
Perkins Engines Group Ltd
Original Assignee
Massey Ferguson Perkins 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 Massey Ferguson Perkins Ltd filed Critical Massey Ferguson Perkins Ltd
Priority to GB5234870A priority Critical patent/GB1367764A/en
Publication of GB1367764A publication Critical patent/GB1367764A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

1367764 Trailer braking system; spring applied brakes; transmitting mechanisms MASSEYFERGUSON-PERKINS Ltd 27 Oct 1971 [4 Nov 1970] 52348/70 Heading F2E A trailer 1 has wheel brakes 12a, 13a urged to a brake-applied condition by springs 10, the springs 10 being overcome to release the brakes 12a, 13a when a mechanical release arrangement on the trailer 1 is connected to the power lift of a tractor 17 and the power lift is raised. As shown in Figs. 1, 2 the release arrangement comprises a bell-crank lever 6 carried on a bracket 5 attached to the trailer drawbar 2 and also connected to a brake rod 9 through a connecting rod 7 and a transfer lever 9a which receives the brake applying force of the springs 10. The forces transmitted by the rod 9 are transmitted through a double bell crank equalizer 11 to actuating rods 12, 13 for wheel brakes 12a, 13a. The bell crank lever 6 carries a link 14 and when the trailer 1 is coupled to the tractor 17 by a tongue 3 and coupling pin 4, the link 14 is also connected to a bridge piece 15 fastened to both lower links 16 of the trailer powerlift. A control 18 acts via a ram 19, lift arms 20 and lift links 21 on the lower links 16 whereby as the lift is raised the link 14 and rod 7 are pulled to a new position and the brakes 12a, 13a are released. The bridge piece 15 is positioned directly above the coupling pin 4 and the bracket 5 is positioned adjacent the tongue 3 to prevent unintentional brake operation during movement of the tractor-trailer. In the embodiment of Fig. 3 (not shown) the link 14 and rod 7 are replaced by a cable (23) running over a pulley (24) and the transfer lever 9a is replaced by a lever (25) having a horizontal pivotal axis.
GB5234870A 1971-10-27 1971-10-27 Trailers Expired GB1367764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5234870A GB1367764A (en) 1971-10-27 1971-10-27 Trailers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5234870A GB1367764A (en) 1971-10-27 1971-10-27 Trailers

Publications (1)

Publication Number Publication Date
GB1367764A true GB1367764A (en) 1974-09-25

Family

ID=10463571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5234870A Expired GB1367764A (en) 1971-10-27 1971-10-27 Trailers

Country Status (1)

Country Link
GB (1) GB1367764A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014405A1 (en) * 1979-02-02 1980-08-20 Josef Peitz Fahrzeugteile Over-run brake with an additional brake actuating installation
CN104417507A (en) * 2013-08-21 2015-03-18 石荣斌 Safe and stable six-wheel articulated tractor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014405A1 (en) * 1979-02-02 1980-08-20 Josef Peitz Fahrzeugteile Over-run brake with an additional brake actuating installation
CN104417507A (en) * 2013-08-21 2015-03-18 石荣斌 Safe and stable six-wheel articulated tractor

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Legal Events

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