GB1150076A - Overrun brake control - Google Patents

Overrun brake control

Info

Publication number
GB1150076A
GB1150076A GB1993366A GB1993366A GB1150076A GB 1150076 A GB1150076 A GB 1150076A GB 1993366 A GB1993366 A GB 1993366A GB 1993366 A GB1993366 A GB 1993366A GB 1150076 A GB1150076 A GB 1150076A
Authority
GB
United Kingdom
Prior art keywords
lever
trailer
rod
coupling
damper
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
GB1993366A
Inventor
Pierre Hahn
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
Publication of GB1150076A publication Critical patent/GB1150076A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/037—Bistable circuits
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01—Details
    • H03K3/013—Modifications of generator to prevent operation by noise or interference
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/033—Monostable circuits

Landscapes

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

Abstract

1,150,076. Overrun brakes for trailer vehicles. P. HAHN. May 5, 1966 [ May 5, 1965], No. 19933/66. Heading F2E. An overrun brake control for trailer vehicles comprises a coupling rod connected between a tractor vehicle and an hydraulic damper on the trailer, the damper being of the oleopneumatic type which is provided with a compressed air chamber 9, separated from the hydraulic fluid by a free piston 10, to provide initial resistance to collapse of the towbar assembly, a trailer brake lever or levers being acted on by a force derived from that acting on the coupling-rod through a parallel connection, e.g. a spring, so arranged that the derived force is different. As shown, a spring 16 is arranged in parallel with the damper and acts on lever 11 of the trailer brake linkage whenever movement of the coupling-rod 2 occurs, whilst the damper 7 acts directly between the tractor and trailer. For this purpose, the coupling rod 2 supports a tube 3, which slides within a tube 6 secured to the trailer, and has an extension-rod 15 extending rearwardly from it to connect with the piston rod 21 of the damper 7, the latter being secured at 8 within the tube 6. Spring 16, which surrounds the rod 15 and is enclosed within a tube 12, acts on the lever 11 via a collar 13 which includes pins 14 engaging slots in bifurcations of the lever 11. Extension of the coupling is limited by a stop-ring 18 and interposed resilient ring 19. The relay lever 11 is pivoted at 26 on a clamp 28 secured to the tube 6, and acts on a rod 17 coupled to the trailer brakes, the lever giving a mechanical advantage of more than 2:1. A pneumatic or hydraulic slave cylinder may also act directly on the trailer brakes under control of the tractor brake system. A hand-brake lever formed by a pair of lever arms 23 is also pivoted at 26 and engages with play in extensions of the coupling pin which connects the linkage 17 to the lever 11. A pawl 26 on the hand-brake lever engages a ratchet 27 formed on the clamp 28. A chain 25 is connected between the lower end of the handbrake lever and the tractor to apply the brakes automatically if the coupling should become disconnected.
GB1993366A 1965-05-05 1966-05-05 Overrun brake control Expired GB1150076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR15837A FR1484622A (en) 1965-05-05 1965-05-05 Inertia braking system

Publications (1)

Publication Number Publication Date
GB1150076A true GB1150076A (en) 1969-04-30

Family

ID=8578006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1993366A Expired GB1150076A (en) 1965-05-05 1966-05-05 Overrun brake control

Country Status (3)

Country Link
DE (1) DE1555785A1 (en)
FR (1) FR1484622A (en)
GB (1) GB1150076A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469202A (en) * 1981-11-24 1984-09-04 H & K Bradley (Trailer Equipment) Limited Brake control mechanisms for use with trailers
WO2004056633A1 (en) * 2002-12-23 2004-07-08 Alan Murfin Brooks Auto reserse facility in trailer vehicle to automatically over-run braking system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364539A (en) * 1970-11-27 1974-08-21 Koper Manpar Ag Overrunning brake installations for trailers
DE202005019223U1 (en) * 2005-12-08 2006-08-10 Knott Gmbh Braking system preventing vehicle trailer or caravan from running-on, includes sensor determining drawbar displacement and applying brakes when threshold is exceeded

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469202A (en) * 1981-11-24 1984-09-04 H & K Bradley (Trailer Equipment) Limited Brake control mechanisms for use with trailers
WO2004056633A1 (en) * 2002-12-23 2004-07-08 Alan Murfin Brooks Auto reserse facility in trailer vehicle to automatically over-run braking system

Also Published As

Publication number Publication date
DE1555785A1 (en) 1970-08-27
FR1484622A (en) 1967-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees