FR2650223A1 - Guiding front axle assembly with independent wheels (independent front suspension) - Google Patents

Guiding front axle assembly with independent wheels (independent front suspension) Download PDF

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Publication number
FR2650223A1
FR2650223A1 FR8909972A FR8909972A FR2650223A1 FR 2650223 A1 FR2650223 A1 FR 2650223A1 FR 8909972 A FR8909972 A FR 8909972A FR 8909972 A FR8909972 A FR 8909972A FR 2650223 A1 FR2650223 A1 FR 2650223A1
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FR
France
Prior art keywords
lateral
arms
articulation
front axle
fittings
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.)
Granted
Application number
FR8909972A
Other languages
French (fr)
Other versions
FR2650223B1 (en
Inventor
Francois Mounier-Poulat
Guy Guiavarch
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.)
Renault Trucks SAS
Original Assignee
Renault Vehicules Industriels SA
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Filing date
Publication date
Application filed by Renault Vehicules Industriels SA filed Critical Renault Vehicules Industriels SA
Priority to FR8909972A priority Critical patent/FR2650223B1/en
Publication of FR2650223A1 publication Critical patent/FR2650223A1/en
Application granted granted Critical
Publication of FR2650223B1 publication Critical patent/FR2650223B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/12—Understructures, i.e. chassis frame on which a vehicle body may be mounted assembled from readily detachable parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/06—Connections between superstructure or understructure sub-units readily releasable
    • B62D27/065—Connections between superstructure or understructure sub-units readily releasable using screwthread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/15—Mounting of subframes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/44—Centering or positioning means
    • B60G2204/4404—Retainers for holding a fixing element, e.g. bushing, nut, bolt etc., until it is tightly fixed in position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/60—Subframe construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7102—Aluminium alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8105—Shaping by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8207—Joining by screwing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

Guiding front axle assembly with independent wheels 1 with laced transverse arms 6, 7 particularly intended for industrial vehicles, capable of being fixed simply to the parallel longerons made of folded sheet metal 21 or extruded section 22 and including a central crossmember 20 which contains the rack-type steering mechanism 23 as well as lateral fixtures 19 for connecting the said crossmember to the said longerons, as well as the means allowing rapid installation, setting, and fastening of such an axle assembly 18 to extruded longerons 22 including fastening grooves.

Description

TRAIN AVANT DIRECTEUR A ROUES INDEPENDANTES
La présente invention se rapporte à un train avant directeur à roues indépendantes à bras transversaux triangulés.STEERING FRONT STEERING WITH INDEPENDENT WHEELS
The present invention relates to a steering front axle with independent wheels with triangulated transverse arms.

Ce type de train avant a été très employé dans la construction des voitures particulières, mais il trouve une application originale en étant appliqué à des véhicules industriels (pour le transport des marchandises ou des personnes) et tout particulièrement à ceux qui ont une structure porteuse constituée principalement dans leur partie -avant par deux poutres (ou longerons) disposés sensiblement horizontalement et parallèles à l' axe longitudinal du véhicule.This type of front axle has been widely used in the construction of passenger cars, but it finds an original application by being applied to industrial vehicles (for the transport of goods or people) and especially to those which have a load-bearing structure constituted mainly in their front part by two beams (or longitudinal members) arranged substantially horizontally and parallel to the longitudinal axis of the vehicle.

selon une technique appliquée sur les véhicules industriels, les bras transversaux supérieurs et inférieurs sont articulés sur un berceau qui est fixé, soit rigidement, soit de façon souple sur la structure dudit véhicule.according to a technique applied to industrial vehicles, the upper and lower transverse arms are articulated on a cradle which is fixed, either rigidly or flexibly on the structure of said vehicle.

Le mécanisme qui commande la rotation en braquage des roues avant n'est & néralement pas fixé sur le berceau décrit plus haut mais sur une autre partie de la structure.The mechanism which controls the turning rotation of the front wheels is not generally fixed on the cradle described above but on another part of the structure.

Le train avant selon l'invention est un berceau modulaire construit grâce à l'assemblage d' éléments standardisés. Les avantages attendus sont : - La possibilité de réaliser des trains avant avec une voie différente en
conservant le maximum d'éléments communs.The front axle according to the invention is a modular cradle built thanks to the assembly of standardized elements. The expected advantages are: - The possibility of making front axles with a different track in
keeping the maximum of common elements.

- L'accès aux parties basses du moteur par démontage de la traverse
inférieure (pour la maintenance du véhicule).- Access to the lower parts of the engine by dismantling the crossmember
lower (for vehicle maintenance).

- Le pré-asssemblage du train complet sur une ligne de montage
spécifique.- Pre-assembly of the complete train on an assembly line
specific.

- Le règlage de la position longitudinale du train avant (ce qui est
fréquent sur les véhicules industriels1.- The adjustment of the longitudinal position of the front axle (which is
common on industrial vehicles 1.

- L' incorporation du mécanisme de direction dans la traverse inférieure
pour une meilleure protection de celui-ci. - The incorporation of the steering mechanism in the lower crossmember
for better protection of it.

L' accès au mécanisme de direction par une trappe démontable. Access to the steering mechanism by a removable hatch.

Les dessins annexés illustrent l'invention : - La figure l représente un train avant selon l'état actuel de la
technique.The accompanying drawings illustrate the invention: - Figure l shows a front axle according to the current state of the
technical.

- La figure 2 représente le berceau, les bras transversaux triangulés et
l'articulation desdits bras sur le berceau selon l' état actuel de la
technique.- Figure 2 shows the cradle, the triangulated transverse arms and
the articulation of said arms on the cradle according to the current state of the
technical.

- La figure 3 représente un train avant suivant l'invention. - Figure 3 shows a front axle according to the invention.

- La figure 4 représente la section d' un longeron du type pouvant être
utilisé pour le montage du train avant suivant l'invention.- Figure 4 shows the section of a beam of the type that can be
used for mounting the front axle according to the invention.

- La figure 5 représente la liaison du train avant suivant l'invention
avec son longeron tubulaire.- Figure 5 shows the front axle connection according to the invention
with its tubular beam.

- La figure 6 représente la liaison du train avant suivant l'invention avec
un longeron en C.- Figure 6 shows the connection of the front axle according to the invention with
a C spar.

- La figure 7 représente une forme de liaison sur un longeron en profilé
extrudé tel celui décrit sur le brevet français N 86-05185.- Figure 7 shows a form of connection on a profile spar
extruded such as that described in French patent N 86-05185.

- La figure 8 représente la mise en place des ferrures latérales sur un
longeron de type en profilé extrudé (le train avant étant supposé
descendu au dessus des longerons retournés).- Figure 8 shows the establishment of lateral fittings on a
type beam in extruded profile (the front axle being assumed
lowered above the inverted side members).

- La figure 9 est une perspective de la figure 8. - Figure 9 is a perspective of Figure 8.

- La figure 10 représente un assemblage semblable à celui décrit sur la
figure 8, mais avec des rivets au lieu de boulons.- Figure 10 shows an assembly similar to that described on the
figure 8, but with rivets instead of bolts.

- La figure 11 représente un agencement d' écrous se positionnant dans
une rainure d'un longeron en profilé extrudé. - Figure 11 shows an arrangement of nuts positioned in
a groove of a spar in extruded profile.

Un train avant directeur à roues indépendantes conçu selon une technique habituelle est représenté sur la figure 1. La roue avant 1 pivote autour d'une fusée 2 qui est solidaire d'un porte fusée 3 comportant à ses extrémités inférieure et supérieure des rotules 4 et 5 sur lesquelles s'articulent l'extrémité des bras latéraux triangulés supérieurs 6 et inférieurs 7. Ces bras pivotent autour des axes 8 et 9 sensiblement parallèles à l'axe longitudinal du véhicule et appartenant à une pièce 10 appelée généralement "berceau". Comme on le voit sur la figure 2, ce berceau 10 est une pièce rigide qui supporte les deux demi trains et dont la forme est adaptée à une fixation d' une façon souple ou rigide avec le châssis ou la structure.L'élément élastique Il qui peut être un ensemble amortisseur hydraulique concentrique a un ressort hélicoidal ou un élément olëo-pneumatique relie le bras inférieur 7 au berceau 10.A front axle steering with independent wheels designed according to a usual technique is shown in FIG. 1. The front wheel 1 pivots around a spindle 2 which is integral with a stub axle 3 having at its lower and upper ends ball joints 4 and 5 on which are articulated the end of the upper triangulated side arms 6 and lower 7. These arms pivot around the axes 8 and 9 substantially parallel to the longitudinal axis of the vehicle and belonging to a part 10 generally called "cradle". As can be seen in FIG. 2, this cradle 10 is a rigid piece which supports the two half-trains and whose shape is adapted to a flexible or rigid fixing with the chassis or the structure. The elastic element Il which can be a hydraulic shock absorber assembly concentric with a helical spring or an oil-pneumatic element connects the lower arm 7 to the cradle 10.

Le train avant selon l'invention est illustré sur la figure 3. Une structure principale 18 en forme de berceau est composée - de deux ferrures latérales symétriques 19, - de deux supports latéraux symétriques 17, - d'une traverse 20.The front axle according to the invention is illustrated in FIG. 3. A main structure 18 in the form of a cradle is composed of - two symmetrical lateral fittings 19, - two symmetrical lateral supports 17, - a cross member 20.

Cette structure est conçue de façon à venir en appui sous les deux longerons 21 parallèles, disposés approximativement parallèlement à l'axe longitudinal du véhicule et en position horizontale. Ces longerons peuvent etre en tale pliée 39 en forme de C ou être réalisés sous la forme d'un profilé 22 tubulaire tel que celui représenté sur le figure 4. Un tel profilé est décrit dans le brevet NO 86-05185 déposé le 11.04.1986 au nom de RENAULT VEHICULES INDUSTRIELS. Il est évident que cette structure peut entre monobloc, mais elle perd alors les avantages qui vont etre décrit plus loin.This structure is designed so as to come to bear under the two parallel beams 21, arranged approximately parallel to the longitudinal axis of the vehicle and in a horizontal position. These beams can be in folded plate 39 in the form of a C or be produced in the form of a tubular profile 22 such as that shown in FIG. 4. Such a profile is described in patent NO 86-05185 filed on 04/11/986 on behalf of RENAULT VEHICULES INDUSTRIELS. It is obvious that this structure can be in one piece, but it then loses the advantages which will be described later.

Les ferrures latérales 19 sont fixées sur la face verticale intérieure des longerons 21 par des fixations 29 comme des boulons ou par rivetage 32. The lateral fittings 19 are fixed to the internal vertical face of the side members 21 by fasteners 29 such as bolts or by riveting 32.

Elles possèdent une face aménagé pour venir prendre appui sous la partie correspondante du longeron 21. Cette disposition est particulièrement utile dans le cas d' un longeron extrudé 22 comme celui dont la section est représentée sur la figure 4, car la rigidité de celui-ci permet de transmettre la charge d' appui vertical sur toute la largeur de la semelle.They have a face arranged to come to bear under the corresponding part of the spar 21. This arrangement is particularly useful in the case of an extruded spar 22 like the one whose section is shown in Figure 4, because the rigidity of it allows the vertical bearing load to be transmitted over the entire width of the sole.

Ces mêmes ferrures latérales 19 servent de fixation aux paliers d'articulation 15 des bras inférieurs 7. Elles sont fixées aux deux extrémités de la traverse 20 qui a préférentiellement une forme tubulaire pour obtenir une rigidité importante et une robuste liaison avec les ferrures latérales 19. Le volume intérieur est utilisé pour l'implantation du bottier du mécanisme de direction 23. Un mécanisme à crémaillère est particulièrement bien adapté à son intégration dans une telle traverse 20.These same lateral fittings 19 serve to fix the articulation bearings 15 of the lower arms 7. They are fixed to the two ends of the cross-member 20 which preferably has a tubular shape in order to obtain significant rigidity and a robust connection with the lateral fittings 19. The internal volume is used for the installation of the boot of the steering mechanism 23. A rack mechanism is particularly well suited to its integration into such a cross member 20.

Toujours sur la figure 3 on voit les deux biellettes de direction 12 de commande de braquage des roues directrices liées par les articulations 13 et 14 à ladite crémaillère elle-même actionnée par le bottier de direction 24 et la colonne de direction 25. Un des avantages d' une telle implantation est une excellente protection de ce mécanisme face aux agents exterieurs. Bien entendu, la traverse 20 est munie d'une porte de visite démontable afin de permettre le montage du mécanisme et d' en assurer un entretien aisé.Still on FIG. 3, we see the two steering rods 12 for steering the steering wheels steered linked by the articulations 13 and 14 to said rack itself actuated by the steering boot 24 and the steering column 25. One of the advantages such an implantation is an excellent protection of this mechanism against external agents. Of course, the cross 20 is provided with a removable inspection door to allow the mounting of the mechanism and to ensure easy maintenance.

L'ensemble constitué par la traverse 20 et les deux supports latéraux 19 peut être réalisé par un ensemble unique possèdant les caractéristiques énumérées plus haut.The assembly constituted by the cross member 20 and the two lateral supports 19 can be produced by a single assembly having the characteristics listed above.

La solution consistant à lier entre eux les deux supports latéraux 19 grâce à la traverse 20 trouve son intérêt dans la construction des véhicules industriels ; il est en effet courant dtutiliser les mêmes organes sur des véhicules ayant des caractéristiques différentes. En utilisant des traverses 20 de longueur différente, on obtient des berceaux 18 pouvant équiper des véhicules ayant une voie différente.The solution consisting in linking together the two lateral supports 19 thanks to the cross-member 20 finds its interest in the construction of industrial vehicles; it is indeed common to use the same components on vehicles with different characteristics. By using sleepers 20 of different lengths, cradles 18 are obtained which can be fitted to vehicles having a different track.

Selon un mode de réalisation représenté sur la figure 7, les paliers 16 d' articulation des bras supérieurs 6 sont fixés rigidement sur la partie supérieure de la face verticale des longerons 22. Cette fixation est généralement coulissante dans une direction avant/arrière afin de pouvoir ajuster l'angle de chasse au montage, et 1' utilisation d' un longeron 22 tel que décrit sur la figure 4 est alors très utile.According to an embodiment shown in Figure 7, the bearings 16 of articulation of the upper arms 6 are rigidly fixed on the upper part of the vertical face of the side members 22. This fixing is generally sliding in a front / rear direction in order to be able adjust the flush angle during assembly, and the use of a beam 22 as described in FIG. 4 is then very useful.

L'utilisation de supports latéraux 17 facilite un tel montage qui est illustré sur les figures 5 et 6.The use of lateral supports 17 facilitates such an assembly which is illustrated in FIGS. 5 and 6.

Ces supports 17 sont reliés aux supports latéraux 19 par des fixations 26 qui peuvent être des boulons avec écrous Ils reçoivent - Les paliers 16 d'articulation de bras latéraux supérieurs 6, ces paliers
sont dans un premier temps, maintenus pré-assemblés.These supports 17 are connected to the lateral supports 19 by fasteners 26 which can be bolts with nuts. They receive - The bearings 16 of articulation of upper lateral arms 6, these bearings
are initially kept pre-assembled.

- Les articulations supérieures 27 de l'élément élastique de suspenbsion 11 I
dont l'articulation inférieure 28 appartient au bras inférieur 7.- The upper joints 27 of the elastic suspension element 11 I
whose lower joint 28 belongs to the lower arm 7.

On a alors un ensemble comprenant : - 1 berceau 18 constitué : . d'une traverse 20
de deux ferrures latérales 19
. de deux supports latéraux 17 - Les bras de roue 6 et 7 articulés 8 et 9 dans les paliers 15 et 16.We then have an assembly comprising: - 1 cradle 18 consisting of:. of a cross 20
of two side fittings 19
. of two lateral supports 17 - The wheel arms 6 and 7 articulated 8 and 9 in the bearings 15 and 16.

- Les porte-fusées 3 avec les fusées 2.- The rocket carriers 3 with the rockets 2.

- Le mécanisme de commande de direction 23, 12, 13, 14, 24, 25.- The steering control mechanism 23, 12, 13, 14, 24, 25.

Tous ces éléments peuvent etre pré-assemblé et réglés avant le montage sur les longerons.All these elements can be pre-assembled and adjusted before mounting on the side members.

I1 est ainsi possible de réaliser l'assemblage du train avant complet sur le chassies, par simple translation de l'ensemble sur les longerons. Une fois cet ensemble positionné dans le sens longitudinal on peut bloquer les ferrures latérales 19 sur les longerons 21. Les paliers 16 d'articulation qui étaient maintenus sur les supports latéraux 17 peuvent être bloqués sur les longerons 21. L'assemblage 26 ne pourra pas être bloqué pendant
I' accostage du train avant sur le longeron 21, le blocage sera fait après la mise en place et le verrouillage en position par les fixations 29 des ferrures latérales 19 sur lesdits longerons 21.It is thus possible to carry out the assembly of the complete front axle on the casings, by simple translation of the assembly on the longitudinal members. Once this assembly is positioned in the longitudinal direction, the lateral fittings 19 can be blocked on the longitudinal members 21. The articulation bearings 16 which were held on the lateral supports 17 can be blocked on the longitudinal members 21. The assembly 26 cannot be blocked for
I docking the front axle on the side member 21, the blocking will be done after the positioning and locking in position by the fasteners 29 of the lateral fittings 19 on said side members 21.

La figure 8 décrit un mode de fixation des ferrures latérales 19 avec le longeron 22 lorsqu'il est du type de celui représenté sur la figure 4, c' est-à-dire en métal extrudé comme le type décrit sur le brevet français N" 86-05185. Des barrettes-écrou 30 reçoivent les vis 29 de blocage de la ferrure latérale 19.FIG. 8 describes a method of fixing the lateral fittings 19 with the spar 22 when it is of the type of that shown in FIG. 4, that is to say of extruded metal like the type described in French patent N " Nut bars 30 receive the screws 29 for locking the lateral fitting 19.

La même solution est représentée sur la vue en perspective de la figure 9 qui illustre un accostage par translation simple. La ferrure latérale 19 possède des fentes 31 avec des chanfreins d'entrée 35 qui la positionne directement sur le longeron 22 en se guidant sur les vis 29 (figure 8) ou sur les rivets 32 (figures 9 et 10).The same solution is shown in the perspective view of FIG. 9 which illustrates docking by simple translation. The lateral fitting 19 has slots 31 with inlet chamfers 35 which position it directly on the beam 22 by being guided on the screws 29 (FIG. 8) or on the rivets 32 (FIGS. 9 and 10).

Les têtes des vis 29 de la figure 8 ou les bagues de rivet 34 de la figure 10 prennent appui sur une bande de tale percée 33 qui assure le même rôle que des rondelles qui seraient placées sous la tête de chaque vis. Dans le cas d' utilisation de vis à tête hexagonale 29, le bord de la bande de tale 33 peut être rabattu sur le flanc de la tête de la vis 29 et servir ainsi de "frein d' écrou". The heads of the screws 29 in FIG. 8 or the rivet rings 34 in FIG. 10 are supported on a perforated plate strip 33 which performs the same role as the washers which would be placed under the head of each screw. When using hexagonal head screws 29, the edge of the blade strip 33 can be folded over the flank of the head of the screw 29 and thus serve as a "nut lock".

Les barrettes d' écrou peuvent comporter un nombre de trous variable. Sur la figure 11 on voit une disposition qui permet de positionner, dans une rainure du longerons 22, des écrous dont les trous seront facilement positionnés en vis-à-vis des encoches 31 d'un élément à fixer. Pour celà, selon les cas, les écrous comporteront un nombre de trous variable : 30 est un écrou à 3 trous, 36 un écrou à 1 trou, 37 un écrou à 2 trous.The nut bars can have a variable number of holes. In FIG. 11 is seen an arrangement which makes it possible to position, in a groove of the side members 22, nuts whose holes will be easily positioned opposite the notches 31 of an element to be fixed. For this, depending on the case, the nuts will have a variable number of holes: 30 is a 3-hole nut, 36 is a 1-hole nut, 37 is a 2-hole nut.

Une plaque de liaison 38 solidarise les différents écrous en assurant le bon entr' axe des trous, afin de faciliter le montage des éléments sur le châssis. A connection plate 38 secures the various nuts while ensuring the correct spacing of the holes, in order to facilitate the mounting of the elements on the chassis.

Claims (7)

REVENDîCATIONS 1. Train avant directeur à roues < I) indépendantes à bras transversaux (6, 7) triangulés particulièrement destiné aux véhicules industriels pour le transport des marchandises ou des personnes, comprenant une structure principale (18) transversale en forme de berceau, caractérisé en ce qu'elle cOmporte - 2 ferrures latérales (19) portant les paliers d'articulation (15) des bras1. Steering front axle with independent wheels <I) with transverse arms (6, 7) triangulated, particularly intended for industrial vehicles for the transport of goods or people, comprising a main structure (18) transverse in the form of a cradle, characterized in that that it carries - 2 lateral fittings (19) carrying the articulation bearings (15) of the arms triangulés inférieurs (7). lower triangles (7). paliers d'articulation (16) des bras triangulés supérieurs (6). articulation bearings (16) of the upper triangular arms (6). - 2 supports latéraux (17) reliés aux ferrures latérales (19) et portant les- 2 lateral supports (17) connected to the lateral fittings (19) and carrying the chacune de ses extrémités sur les ferrures latérales (19). each of its ends on the lateral fittings (19). creuse, pouvant contenir le mécanisme de direction (23) et - fixée à hollow, which can contain the steering mechanism (23) and - fixed to - I traverse inférieure (20) de rigidification, démontable et de section- I lower cross member (20) for stiffening, removable and of section 2. Train avant directeur selon la revendication 1, caractérisé en ce que les zones de. fixation entre chaque ferrures (19) à et le longeron (21) correspondant sont aménagées en forme de dièdre à 900 ayant une arête horizontale et parallèle au plan de symétrie longitudinal du véhicule, la partie horizontale pouvant être en appui sous la partie inférieure du longeron.2. Steering front axle according to claim 1, characterized in that the areas of. fixing between each fittings (19) to and the corresponding spar (21) are arranged in the form of a dihedral at 900 having a horizontal edge and parallel to the longitudinal plane of symmetry of the vehicle, the horizontal part being able to be supported under the lower part of the spar . 3. Train avant directeur selon les revendications 1 et 2 , caractérisé en ce qué les longerons (22) qui possèdent des rainures longitudinales permettent une infinité de positions de fixation des ferrures latérales (19) dans la position longitudinale.3. front axle according to claims 1 and 2, characterized in that the side members (22) which have longitudinal grooves allow an infinite number of fixing positions of the lateral fittings (19) in the longitudinal position. 4. Train avant directeur selon les revendications 1, 2 et 3, caractérisé en ce que chacun des paliers d'articulation (16) des bras transversaux supérieurs (6) est fixé dans des rainures aménagées dans la partie haute du longeron lorsque celui-ci est un longeron extrudé (22). 4. Front axle assembly according to claims 1, 2 and 3, characterized in that each of the articulation bearings (16) of the upper transverse arms (6) is fixed in grooves provided in the upper part of the spar when the latter is an extruded beam (22). 5. Train avant directeur selon les revendications de 1 à 4, caractérisé en ce que les paliers supérieurs (16) d'articulation des bras latéraux triangulés supérieurs (6) sont reliés aux supports latéraux (17) et les paliers inférieurs (15) d' articulation des bras latéraux triangulés inférieurs (7) sont reliés aux ferrures latérales (19) de manière à maintenir en position relativement correcte les axes (8 et 9) d' articulation des bras latéraux triangulés supérieurs (6) et inférieurs (7) pendant la manutention de l'ensemble du berceau (18) avant son montage sur les longerons (21).5. Front axle assembly according to Claims 1 to 4, characterized in that the upper bearings (16) for articulation of the upper triangulated lateral arms (6) are connected to the lateral supports (17) and the lower bearings (15) d articulation of the lower triangulated lateral arms (7) are connected to the lateral fittings (19) so as to maintain in a relatively correct position the axes (8 and 9) of articulation of the upper triangulated lateral arms (6) and lower (7) during handling the entire cradle (18) before mounting it on the side members (21). 6. Train avant directeur selon les revendications 1 à 5, caractérisé en ce que les fixations des ferrures latérales (19) sur les longerons (22) sont aménagées de façon à ce que le train avant pré-assemblé puisse être mis en place par simple translation du berceau (18) sur lesdits longerons (22).6. front undercarriage according to claims 1 to 5, characterized in that the fasteners of the lateral fittings (19) on the side members (22) are arranged so that the pre-assembled front undercarriage can be put in place by simple translation of the cradle (18) on said beams (22). 7. Train avant directeur selon les revendications 1 à 6, caractérisé en ce que les fixations des paliers (15, 16) d'articulation des axes de guidage (8, 9) des bras transversaux (6, 7) sont maintenus par des barrettes (30, 36, 37), positionnées dans des rainures aménagées. dans les longerons (22), les différentes barrettes (30, 36,. 37), correspondant à des groupes de fixations distincts de long dudit longeron pouvant être retenues à 1' écartement nécessaire par une bande de tôle mince (38) sur laquelle chacune d' elle est fixée. 7. front undercarriage according to claims 1 to 6, characterized in that the fasteners of the bearings (15, 16) of articulation of the guide pins (8, 9) of the transverse arms (6, 7) are held by bars (30, 36, 37), positioned in arranged grooves. in the longitudinal members (22), the various bars (30, 36 ,. 37), corresponding to groups of separate fasteners along said longitudinal member which can be retained at the necessary spacing by a strip of thin sheet metal (38) on which each of it is fixed.
FR8909972A 1989-07-25 1989-07-25 STEERING FRONT STEERING WITH INDEPENDENT WHEELS Expired - Lifetime FR2650223B1 (en)

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FR8909972A FR2650223B1 (en) 1989-07-25 1989-07-25 STEERING FRONT STEERING WITH INDEPENDENT WHEELS

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FR2650223B1 FR2650223B1 (en) 1991-10-04

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887247A1 (en) * 1997-06-24 1998-12-30 Daimler-Benz Aktiengesellschaft Method for connecting an aggregate cross member on a vehicle front structure
WO2002026548A1 (en) * 2000-09-26 2002-04-04 Dana Corporation Modular subframe assembly for a motor vehicle
WO2010011625A2 (en) 2008-07-24 2010-01-28 Hyro-Gear Limited Partnership Front steering module for a zero turn radius vehicle
US9649923B2 (en) 2014-01-21 2017-05-16 Interactive Fully Electrical Vehicles, S.R.L. Electric-propulsion vehicle

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US2041936A (en) * 1934-12-08 1936-05-26 R W Fair Vehicle chassis
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EP0034531A1 (en) * 1980-02-13 1981-08-26 Automobiles Citroen Self-propelling vehicle axle support
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WO1987004679A1 (en) * 1986-02-10 1987-08-13 British Alcan Aluminium Plc Load bearing structural member and frame structure
FR2597056A1 (en) * 1986-04-11 1987-10-16 Renault Vehicules Ind Longitudinal member for the chassis frame of industrial vehicles
DE3742599A1 (en) * 1987-12-16 1989-07-06 Bayerische Motoren Werke Ag Device for adjusting the height of a vehicle wheel
EP0287278B1 (en) * 1987-04-07 1993-07-07 Technology Investments Limited A vehicle chassis transverse structural member

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR762051A (en) * 1932-12-15 1934-03-30 Daimler Benz Ag Wheel suspension mode, the movements of which are damped by springs, independently of each other
US2041936A (en) * 1934-12-08 1936-05-26 R W Fair Vehicle chassis
GB677861A (en) * 1950-07-31 1952-08-20 Daimler Benz Ag Improvements in the suspension of the engine units and axle aggregates of motor vehicles
EP0034531A1 (en) * 1980-02-13 1981-08-26 Automobiles Citroen Self-propelling vehicle axle support
DE3620328A1 (en) * 1985-06-18 1987-02-12 Ssab Svenskt Stal Ab Road vehicle with pairs of wheels attached to frame members
WO1987004679A1 (en) * 1986-02-10 1987-08-13 British Alcan Aluminium Plc Load bearing structural member and frame structure
FR2597056A1 (en) * 1986-04-11 1987-10-16 Renault Vehicules Ind Longitudinal member for the chassis frame of industrial vehicles
EP0287278B1 (en) * 1987-04-07 1993-07-07 Technology Investments Limited A vehicle chassis transverse structural member
DE3742599A1 (en) * 1987-12-16 1989-07-06 Bayerische Motoren Werke Ag Device for adjusting the height of a vehicle wheel

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887247A1 (en) * 1997-06-24 1998-12-30 Daimler-Benz Aktiengesellschaft Method for connecting an aggregate cross member on a vehicle front structure
WO2002026548A1 (en) * 2000-09-26 2002-04-04 Dana Corporation Modular subframe assembly for a motor vehicle
US6398262B1 (en) 2000-09-26 2002-06-04 Dana Corporation Modular subframe assembly for a motor vehicle
US10035537B2 (en) 2006-07-07 2018-07-31 Hydro-Gear Limited Partnership Front steering module for a zero turn radius vehicle
WO2010011625A2 (en) 2008-07-24 2010-01-28 Hyro-Gear Limited Partnership Front steering module for a zero turn radius vehicle
EP2313301A2 (en) * 2008-07-24 2011-04-27 Hydro-Gear Limited Partnership Front steering module for a zero turn radius vehicle
EP2313301A4 (en) * 2008-07-24 2014-08-06 Hydro Gear Ltd Partnership Front steering module for a zero turn radius vehicle
EP3162663A1 (en) * 2008-07-24 2017-05-03 Hydro-Gear Limited Partnership Front steering module
US9649923B2 (en) 2014-01-21 2017-05-16 Interactive Fully Electrical Vehicles, S.R.L. Electric-propulsion vehicle

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