FR2248695A5 - Motor vehicle trailer drawgear - has double piston shock absorber which is immobilised when tractor brakes operate - Google Patents

Motor vehicle trailer drawgear - has double piston shock absorber which is immobilised when tractor brakes operate

Info

Publication number
FR2248695A5
FR2248695A5 FR7337159A FR7337159A FR2248695A5 FR 2248695 A5 FR2248695 A5 FR 2248695A5 FR 7337159 A FR7337159 A FR 7337159A FR 7337159 A FR7337159 A FR 7337159A FR 2248695 A5 FR2248695 A5 FR 2248695A5
Authority
FR
France
Prior art keywords
shock absorber
drawgear
immobilised
motor vehicle
tractor brakes
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
FR7337159A
Other languages
French (fr)
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.)
FAURE JEAN LOUIS FR
Original Assignee
FAURE JEAN LOUIS FR
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 FAURE JEAN LOUIS FR filed Critical FAURE JEAN LOUIS FR
Priority to FR7337159A priority Critical patent/FR2248695A5/en
Application granted granted Critical
Publication of FR2248695A5 publication Critical patent/FR2248695A5/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
    • B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
    • B60D1/32—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving damping devices
    • B60D1/322—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving damping devices using fluid dampers

Abstract

A blockable shock absorber consists of a cylindrical body (8). At one end of which is an articulated fixing piece (9), and the cylinder is separated into two parts by a central piece (10) with a sealed opening in it. In this slides a rod (11), one end of which (12) penetrates the other end of the cylinder. This rod has two pistons (14), (15) with rings. A pipe (16) joins the two compartments with an electrically operated valve (17) in the centre. This valve is energised when the tractor brakes are applied. It closes the connection between the two ends of the cylinder, so immobilising the shock absorbing facility.
FR7337159A 1973-10-18 1973-10-18 Motor vehicle trailer drawgear - has double piston shock absorber which is immobilised when tractor brakes operate Expired FR2248695A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7337159A FR2248695A5 (en) 1973-10-18 1973-10-18 Motor vehicle trailer drawgear - has double piston shock absorber which is immobilised when tractor brakes operate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7337159A FR2248695A5 (en) 1973-10-18 1973-10-18 Motor vehicle trailer drawgear - has double piston shock absorber which is immobilised when tractor brakes operate

Publications (1)

Publication Number Publication Date
FR2248695A5 true FR2248695A5 (en) 1975-05-16

Family

ID=9126587

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7337159A Expired FR2248695A5 (en) 1973-10-18 1973-10-18 Motor vehicle trailer drawgear - has double piston shock absorber which is immobilised when tractor brakes operate

Country Status (1)

Country Link
FR (1) FR2248695A5 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133552A (en) * 1977-06-15 1979-01-09 Gerald Sheine Control means for a vehicular tractor-trailer connection
DE2837765A1 (en) * 1978-08-30 1980-03-13 Maschf Augsburg Nuernberg Ag Stabilised joint for rear drive articulated vehicle - includes hydraulic servo rams between units each side of pivot
FR2448987A1 (en) * 1979-02-14 1980-09-12 Pailler Marie Ange Stabiliser for road towed caravan - uses horizontally fitted pivoting shock absorber with higher resistance to tension than to compression
US4402522A (en) * 1980-03-10 1983-09-06 Autoipari Kutato Intezet Jackknifing angle influencing apparatus for articulated motor vehicle
EP0122956A1 (en) * 1983-04-20 1984-10-31 Rainer M. Schultz Stabilising device for road trains with fifth wheel traction couplings and for articulated vehicles
WO2000052354A1 (en) * 1999-03-03 2000-09-08 Robert Preston Jackknife resistant apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133552A (en) * 1977-06-15 1979-01-09 Gerald Sheine Control means for a vehicular tractor-trailer connection
DE2837765A1 (en) * 1978-08-30 1980-03-13 Maschf Augsburg Nuernberg Ag Stabilised joint for rear drive articulated vehicle - includes hydraulic servo rams between units each side of pivot
FR2448987A1 (en) * 1979-02-14 1980-09-12 Pailler Marie Ange Stabiliser for road towed caravan - uses horizontally fitted pivoting shock absorber with higher resistance to tension than to compression
US4402522A (en) * 1980-03-10 1983-09-06 Autoipari Kutato Intezet Jackknifing angle influencing apparatus for articulated motor vehicle
EP0122956A1 (en) * 1983-04-20 1984-10-31 Rainer M. Schultz Stabilising device for road trains with fifth wheel traction couplings and for articulated vehicles
WO2000052354A1 (en) * 1999-03-03 2000-09-08 Robert Preston Jackknife resistant apparatus

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Legal Events

Date Code Title Description
ST Notification of lapse