FR2623462A1 - Automatic device for steering, in reverse gear, the wheels of follower axles intended for road-transport vehicles - Google Patents

Automatic device for steering, in reverse gear, the wheels of follower axles intended for road-transport vehicles Download PDF

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Publication number
FR2623462A1
FR2623462A1 FR8716387A FR8716387A FR2623462A1 FR 2623462 A1 FR2623462 A1 FR 2623462A1 FR 8716387 A FR8716387 A FR 8716387A FR 8716387 A FR8716387 A FR 8716387A FR 2623462 A1 FR2623462 A1 FR 2623462A1
Authority
FR
France
Prior art keywords
wheels
reverse gear
chambers
vehicle
follower
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Withdrawn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
FR8716387A
Other languages
French (fr)
Inventor
Michel Lisik
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.)
COLLAERT FRERES SA
Original Assignee
COLLAERT FRERES SA
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 COLLAERT FRERES SA filed Critical COLLAERT FRERES SA
Priority to FR8716387A priority Critical patent/FR2623462A1/en
Publication of FR2623462A1 publication Critical patent/FR2623462A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D13/00Steering specially adapted for trailers
    • B62D13/06Steering specially adapted for trailers for backing a normally drawn trailer

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Device for orienting the wheels of a follower axle in reverse gear. The invention relates to a device making it possible to orient the wheels of a follower axle when a vehicle is in reverse gear. It consists of two thrust cylinders VA and VB the fluid pressure in whose chambers VAC1 and VBC1 controls manocontacts MA and MB, these latter triggering the electrical directional control valve D1 allowing the wheels to be oriented depending on the trajectory of the vehicle. The device according to the invention is particularly intended for equipping the follower axles of transport vehicles.

Description

La présente invention concerne un dispositif automatique de direction, en marche arrière, des roues d'essieux-suiveurs destinés aux véhicules de transports sur route. The present invention relates to an automatic steering device, in reverse, of the axle-follower wheels intended for road transport vehicles.

Le dispositif de l'invention a pour but d'obtenir lors de la marche arrière d'un véhicule équipé d'essieux-suiveurs les mêmes avantages qu'en marche avant, c'est à dire
- Orienter les roues selon un angle correspondant à la trajectoire.
The aim of the device of the invention is to obtain the same advantages when reversing a vehicle fitted with steering axles as in forward gear, that is to say
- Orient the wheels at an angle corresponding to the path.

- Faciliter les manoeuvres et en réduire la puissance de traction
ou de poussée.
- Facilitate maneuvers and reduce traction power
or push.

- Réduire les contraintes de rippage au niveau des élèments de
suspension et chassis.
- Reduce the constraints of ripping at the level of the elements of
suspension and chassis.

- Réduire l'usure des pneumatiques. - Reduce tire wear.

Le dispositif, objet de la présente invention, est composé pour l'essentiel de
- 2 vérins repère (VA) et (VB) reliant le corps d'essieu solidaire
du véhicule au support de fusée orientable.
The device, object of the present invention, is essentially composed of
- 2 reference cylinders (VA) and (VB) connecting the integral axle body
from the vehicle to the steerable rocket support.

- 2 manocontacts repère (MA) et (MB) commandés par la pression des
chambres de vérins (VACI) ou (VBCI).
- 2 reference pressure switches (MA) and (MB) controlled by the pressure of the
cylinder chambers (VACI) or (VBCI).

- I électrodistributeur repère (Dl) commandé par les manocontacts
repère (MA) ou (MB) et alimentant les chambres (VAC2) ou (VBC2)
Le distributeur (Dl) alimente les chambres (VAC2) et (VBC2)
jusqu'à l'annulation des pressions (VACI) et (VBCI) (arrêt du
mouvement).
- I reference solenoid valve (Dl) controlled by the pressure switches
mark (MA) or (MB) and supplying the chambers (VAC2) or (VBC2)
The distributor (Dl) supplies the chambers (VAC2) and (VBC2)
until the pressures (VACI) and (VBCI) are canceled (stop of
movement).

- 2 électrodistributeurs repère (D2) et (D3) actionnés en position
d'orientation maxi des roues par les contacts (CA) et (CB). Cette
fonction assure un volume constant de fluide dans les chambres
(VACI) et (VBCI).
- 2 reference solenoid valves (D2) and (D3) actuated in position
maximum orientation of the wheels by the contacts (CA) and (CB). This
function ensures a constant volume of fluid in the chambers
(VACI) and (VBCI).

L'alimentation des électrodistributeurs (D2) et (D3) en simultané, assure le blocage de l'ensemble quelque soit leur position angulaire. The simultaneous supply of the solenoid valves (D2) and (D3) ensures the blocking of the assembly whatever their angular position.

I - Rappel du fonctionnement d'un essieu-suiveur conventionnel (fig.I > .  I - Reminder of the operation of a conventional steering axle (fig.I>.

En marche avant, les roues suivent la trajectoire du véhicule par le fait qu'un pivot d'articuiation des fusées se trouve déplacé à l'avant de l'axe de rotation de celles-ci. When moving forward, the wheels follow the path of the vehicle by the fact that a hinge pivot for the rockets is displaced in front of the axis of rotation of the latter.

En marche arrière, le fonctionnement n'étant pas réversible, les manoeuvres ne sont possibles qu'après blocage des roues en ligne droite, ce qui revient à neutraliser le système. In reverse, the operation is not reversible, maneuvers are only possible after locking the wheels in a straight line, which amounts to neutralizing the system.

2 - Dispositif de la présente invention (fig.2). 2 - Device of the present invention (fig.2).

2a) Marche AV. Le dispositif n'a aucune influence sur le fonctionnement d'un essieu suiveur initial. 2a) Forward operation. The device has no influence on the functioning of an initial tracking axle.

2b) Marche AR. Le dispositif est mis sous tension, l'effort latéral engendré par le pneu au sol crée à l'intérieur des chambres VACI ou VBCI une montée en pression du fluide qui actionne le manocontact MA ou MB, commandant ainsi l'électrodistributeur Dl. Celui-ci alimente la chambre VAC2 ou VBC2 qui assure un mouvement d'orientation des fusées jusqu'à l'équilibre des pressions des chambres VACI et VBCI donc jusqu'à l'orientation idéale des roues et selon leur position correspondante à la trajectoire du véhicule.  2b) Reverse step. The device is energized, the lateral force generated by the tire on the ground creates inside the VACI or VBCI chambers a rise in pressure of the fluid which actuates the pressure switch MA or MB, thus controlling the solenoid valve Dl. This feeds the VAC2 or VBC2 chamber which ensures a rocket orientation movement until the pressures in the VACI and VBCI chambers are balanced, thus up to the ideal orientation of the wheels and according to their position corresponding to the trajectory of the vehicle.

Claims (3)

REVENDICATIONS I) Dispositif pour orienter automatiquement en marche arrière les roues d'un essieu-suiveur d'un véhicule tracté caractérisé en ce qu'il comporte 2 vérins (VA) et (VB) reliant le corps d'essieu solidaire du véhicule au support de fusées orientables dont les chambres (VACI) ou (VBCI) sont reliées à des manocontacts (MA) ou (MB) déclanchant lors de la montée en pression dans les dites chambres exercée par l'effort latéral engendré par le pneu au sol, l'alimentation des chambres (VAC2) ou (VBC2) par un fluide provenant d'un électrodistributeur (Dl) actionnant ainsi les vérins (VA) et (VB) jusqu a équilibre des pressions des moyens de mise en tension du dispositif étant entre autre prévus. I) Device for automatically orienting the wheels of a trailing axle of a towed vehicle in reverse gear, characterized in that it comprises 2 jacks (VA) and (VB) connecting the axle body integral with the vehicle to the support for steerable rockets whose chambers (VACI) or (VBCI) are connected to pressure switches (MA) or (MB) triggering during the pressure build-up in said chambers exerted by the lateral force generated by the tire on the ground, the supply of the chambers (VAC2) or (VBC2) by a fluid coming from a solenoid valve (Dl) thus actuating the jacks (VA) and (VB) until the pressures of the tensioning means of the device are balanced, among other things provided. 2) Dispositif selon la revendication 1 caractérisé en ce qu'il comporte 2 électro-distributeurs (D2) et (D3) actionnés en position d'orient,ation maxi des roues par des contacts (CA) et (CB) de manière à assurer un volume constant de fluide (VACI) et (VBCI).  2) Device according to claim 1 characterized in that it comprises 2 solenoid valves (D2) and (D3) actuated in the orient position, maximum ation of the wheels by contacts (CA) and (CB) so as to ensure a constant volume of fluid (VACI) and (VBCI). 3) Dispositif selon les revendications I et 2 caractérisé en ce que les électrodistributeurs (D2) et (D3) soient reliés à des moyens d'alimentation en simultané de manière à assurer le blocage de l'ensemble quelque soit la position angulaire.  3) Device according to claims I and 2 characterized in that the solenoid valves (D2) and (D3) are connected to simultaneous supply means so as to block the assembly whatever the angular position.
FR8716387A 1987-11-24 1987-11-24 Automatic device for steering, in reverse gear, the wheels of follower axles intended for road-transport vehicles Withdrawn FR2623462A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8716387A FR2623462A1 (en) 1987-11-24 1987-11-24 Automatic device for steering, in reverse gear, the wheels of follower axles intended for road-transport vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8716387A FR2623462A1 (en) 1987-11-24 1987-11-24 Automatic device for steering, in reverse gear, the wheels of follower axles intended for road-transport vehicles

Publications (1)

Publication Number Publication Date
FR2623462A1 true FR2623462A1 (en) 1989-05-26

Family

ID=9357186

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8716387A Withdrawn FR2623462A1 (en) 1987-11-24 1987-11-24 Automatic device for steering, in reverse gear, the wheels of follower axles intended for road-transport vehicles

Country Status (1)

Country Link
FR (1) FR2623462A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0577571A2 (en) * 1992-07-03 1994-01-05 Marco Bettini A reverse steering group for a self-steering axle in trucks, articulated trucks and the like
CN103465956A (en) * 2013-09-27 2013-12-25 徐州重型机械有限公司 Steering control valve, engineering vehicle steering system and steering striking resistant method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450702A1 (en) * 1979-03-07 1980-10-03 Bourgogne Essieux Trailing axle for vehicle - has pivoted wheel hubs with track rod linked to hydraulic cylinder with control valve between cylinder chambers (NL 9.9.80)
BE904155A (en) * 1986-02-03 1986-05-29 Constructiewerken En Landbouwm Self-steering trailer rear wheel lock - has track rod fixed to piston rods of hydraulic cylinders on axle beam with cylinders connected via valve closable to lock wheels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450702A1 (en) * 1979-03-07 1980-10-03 Bourgogne Essieux Trailing axle for vehicle - has pivoted wheel hubs with track rod linked to hydraulic cylinder with control valve between cylinder chambers (NL 9.9.80)
BE904155A (en) * 1986-02-03 1986-05-29 Constructiewerken En Landbouwm Self-steering trailer rear wheel lock - has track rod fixed to piston rods of hydraulic cylinders on axle beam with cylinders connected via valve closable to lock wheels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0577571A2 (en) * 1992-07-03 1994-01-05 Marco Bettini A reverse steering group for a self-steering axle in trucks, articulated trucks and the like
EP0577571A3 (en) * 1992-07-03 1994-07-20 Marco Bettini A reverse steering group for a self-steering axle in trucks, articulated trucks and the like
CN103465956A (en) * 2013-09-27 2013-12-25 徐州重型机械有限公司 Steering control valve, engineering vehicle steering system and steering striking resistant method
CN103465956B (en) * 2013-09-27 2015-11-25 徐州重型机械有限公司 Steering control valve, engineering truck steering swivel system and turn to the method for protecting against shock

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