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 PDFInfo
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D13/00—Steering specially adapted for trailers
- B62D13/06—Steering specially adapted for trailers for backing a normally drawn trailer
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
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)
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)
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)
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 |
-
1987
- 1987-11-24 FR FR8716387A patent/FR2623462A1/en not_active Withdrawn
Patent Citations (2)
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)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |