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EP1000831B1 - Rotatable seat with improved movement, especially for a railway vehicle - Google Patents

Rotatable seat with improved movement, especially for a railway vehicle Download PDF

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Publication number
EP1000831B1
EP1000831B1 EP99402428A EP99402428A EP1000831B1 EP 1000831 B1 EP1000831 B1 EP 1000831B1 EP 99402428 A EP99402428 A EP 99402428A EP 99402428 A EP99402428 A EP 99402428A EP 1000831 B1 EP1000831 B1 EP 1000831B1
Authority
EP
European Patent Office
Prior art keywords
carriage
axis
seat according
rotation
seat
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 - Lifetime
Application number
EP99402428A
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German (de)
French (fr)
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EP1000831A1 (en
Inventor
Roger Aucheron
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.)
Alstom Holdings SA
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Alstom Holdings 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
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Publication of EP1000831A1 publication Critical patent/EP1000831A1/en
Application granted granted Critical
Publication of EP1000831B1 publication Critical patent/EP1000831B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D33/00—Seats
    • B61D33/0057—Seats characterised by their mounting in vehicles
    • B61D33/0078—Seats characterised by their mounting in vehicles adjustably mounted
    • B61D33/0085—Seats characterised by their mounting in vehicles adjustably mounted rotatably

Definitions

  • the present invention relates to a rotary seat with improved movement, especially for rail vehicles.
  • a seat of the type comprising a mobile upper part for receiving at least one occupant carried by a part fixed lower forming base and turning means of the upper part back and forth and vice versa.
  • Seats of this type are arranged in particular in vehicles rail.
  • the means for reversing a seat make it possible to reverse the orientation front-rear of this seat so as to place this seat and the passenger (s) occupying it (s) in the direction of movement of the vehicle, regardless of the direction in which this vehicle travels a path.
  • the seats of a railway vehicle are arranged close a left or right side wall of this vehicle.
  • the space between the seats and the neighboring side wall is preferably the most reduced possible, the movement of a seat from front to back (and conversely) by simply rotating the movable upper part of the seat around a fixed vertical axis is hindered by the side wall. Because of this, generally the reversal a seat is made, first of all, by moving the movable upper part of the wall next to the seat, then by rotating this movable part around a vertical axis and finally by bringing this movable part closer to the wall next to the seat.
  • a seat according to the preamble of claim 1 is known from US-1,902,282.
  • the object of the invention is to provide a seat, in particular for a vehicle rail, equipped with space-saving turning means, light and simple to maneuver in order to quickly reverse the front-rear orientation of all the seats of a railway vehicle.
  • the invention relates to a seat according to claim 1.
  • the invention also relates to a rail vehicle comprising a seat as defined above.
  • FIG. 1 shows a seat 10, according to the invention, arranged in a rail vehicle 12.
  • the seat 10 comprises a movable upper part 14 carried by a part fixed lower 16 secured to a floor 18 of the vehicle 12.
  • the upper part 14 is intended to receive at least one occupant, for example two occupants as in the case shown in Figure 1.
  • the upper part 14 includes seat cushions 20 and backrest 22 as well as armrests 24.
  • the upper part 24 is arranged at proximity of a side wall 26 of the vehicle 12.
  • the seat 10 also includes means 28 for turning over the part upper 14 from front to back and vice versa. These turning means 28, illustrated in more detail in Figures 2 to 9, allow to place the seat 10 in one or the other of its two normal use positions shown in Figures 5 and 9.
  • the turning means 28 comprise a carriage 30 connecting the part upper 14 and the base 16 of the seat.
  • This carriage 30, integral with the upper part 14, is mounted movable in rotation about a substantially vertical axis Z, linked to this carriage, and in translation substantially perpendicular to this Z axis in a rectilinear light forming a guide 32 formed in a substantially horizontal wall 34 delimiting the base 16 (see especially Figures 2 to 4).
  • the wall 34 separates two parts of the carriage 30, respectively inner and external to the base 16, these two parts being interconnected by a part intermediate 36 forming pivot of axis Z.
  • Guide 32 extends substantially parallel to a transverse vertical plane of the vehicle, such as the plan in Figure 1.
  • the external part of the carriage 30 forms a head 38 for supporting this carriage on the wall 34 of the base.
  • the head 38 is in sliding contact with the wall 34.
  • the carriage 30 is resiliently returned to the rest position, against a first end 32A of the guide (on the left considering FIG. 4) by a spring traction 40 hung on the base 16 and the interior part of the carriage 30.
  • the first end 32A of the guide is closest to the side wall 26 of the vehicle, next to the seat, the second end 36B of the guide (on the right considering FIG. 2) therefore being the furthest from this side wall 26.
  • the inner part of this carriage is rotatably mounted around the Z axis on a sliding cross member 42 on a pair of rails 44 substantially parallel to the guide 32.
  • the rails 44, integral with the base 16, are arranged for example inside this base 16, on walls substantially vertical delimiting the base 16 (see in particular Figures 2 and 3).
  • the base 16 and the carriage 30 have complementary shapes for immobilizing this carriage in rotation when it is in its rest position such that shown in particular in Figures 2 and 4.
  • these shapes complementary are provided, one 46, on the contour of the head 38 of the carriage, and the other 48, on a base 50 arranged on the wall 34.
  • the complementary immobilization surfaces 46.48 can advantageously be delimited by bevelled edges favoring the vertical immobilization of the carriage 30.
  • the immobilization form 46 formed on the head 38 of the carriage has as axis of symmetry the axis Z.
  • the turning means 28 also include means 52 drive in translation of the carriage 30 along the guide 32, shown in particular in FIG. 2, and means 54 with gear for transforming this movement of translational movement in rotation about the Z axis of the carriage 30, shown especially in Figures 5 and following.
  • the drive means 52 comprise a cable traction device 56 having a first end connected to the inner part of the carriage 30 and a second end connected to a control lever 58.
  • This control lever 58 has a first support end 58A articulated inside the base 16 around a geometric axis substantially orthogonal to the Z axis, and a second operating end 58B extending outside of the base 16 through an opening 60 of the latter.
  • the cable extends between the carriage 30 and the control lever 58 on a return pulley 62.
  • the gear means 54 comprise a toothed pinion 64, integral in rotation of the carriage 30, intended to cooperate with first and second racks 66,68 carried by an articulated assembly 70.
  • the pinion 64 carried by the inner part of the carriage 30, has a coincident axis with the Z axis.
  • the assembly 70 is articulated around three axes Z1 to Z3 substantially parallel to the Z axis.
  • the assembly 70 comprises a frame forming a support 72, carrying the racks 66.68, and a member for selecting one or other of the racks provided with a first tip forming rocker 74 and a second end forming rod 76 deformable elastically.
  • the frame 72 is articulated on the base 16 around the first axis Z1 joint.
  • the rocker 74 is also articulated on the base 16 around the second axis of articulation Z2.
  • the rod 76 constituted for example by a spring of compression, has one end of connection with the flip-flop 74 and one end articulated on the frame 72 around the third axis of articulation Z3.
  • the third axis of articulation Z3, connecting the frame 72 and the member of selection, extends substantially between the two other axes of articulation Z1, Z2.
  • the racks 66,68 have facing teeth and are arranged roughly symmetrically with respect to a plane containing the Z axis, on either side of the pinion 64.
  • the pinion 64 is intended to mesh with the first rack 66 when it moves in translation from the first end 32A to the second end 32B of the guide and with the second rack 68 when it moves in the opposite direction, from the second end 32B towards the first end 32A of the guide.
  • Each rack 66,68 is selected in the engagement position with the pinion 64 by causing the third articulation axis Z3 to cross a position in which it is coplanar with the other two axes of articulation Z1, Z2. Crossing this position is obtained by actuating the selection member, more particularly the rocker 74 of this member, with a selection finger 78 carried by the carriage 30.
  • the rocker 74 allows therefore to place the frame 72 in two stable positions which are substantially symmetrical by relative to the plane containing the first and second axes of articulation Z1, Z2.
  • the finger selection 78 is pivotally mounted around the Z axis on the inner part of the carriage 30.
  • the selection finger 78 is resiliently returned to a rest position, as shown in Figure 5, by a pair of counter tension springs 80 connecting this selection finger 78 to the sliding cross member 42.
  • the finger selection plane 78 In the rest position, the finger selection plane 78 has for plane of symmetry the plane containing the first and second axes Z1, Z2.
  • the selection finger 78 is therefore movable on either side of this plane of symmetry against the elastic restoring force of one or other of the springs antagonists 80.
  • the upper part 14 of the seat is in a first position normal use of this seat as shown in Figure 5.
  • the carriage is biased by the spring 40 against the first end 32A of the guide. Shapes complementary 46,48 immobilization in rotation of the carriage cooperate with each other.
  • the control lever 58 is in its high position (see FIG. 2). Pinion 64 is the distance from the racks 66,68.
  • Lowering the control lever 58 has the effect of moving the carriage 30 in translation, substantially parallel to a transverse vertical plane of the vehicle 12, the first end 32A towards the second end 32B of the guide.
  • the pinion 64 meshes with the first rack 66 which has the effect of turning the carriage 30 and the upper part 14 around the axis Z, clockwise when considering the figure 6.
  • the finger selection 78 cooperates with a ramp of the scale 74 in order to rotate the latter around the axis Z2, as shown in Figures 7 and 8.
  • the pivoting of the flip-flop 74 which goes against the elastic return force of the selection finger 78 (antagonistic springs 80), allows the third articulation axis Z3 to cross its position in which it is coplanar with the other two axes of articulation Z1, Z2 and thus making the pinion 64 mesh with the second rack 68.
  • the pinion 64 meshing with the second rack 68, rotates around the Z axis the carriage 30 and the upper part 14 of the seat, always in the same clockwise considering Figures 5 to 9.
  • the pinion 64 cooperates with the second rack 68 until completion of the inversion of the upper part 14 of the seat.
  • the carriage 30, always recalled elastically by the spring 40, completes its displacement by a translation along the guide 32 to the first end 32A of this guide so as to bring the part upper 14 of the seat of the side wall 26, to reach the second normal position of use of the seat shown in FIG. 9.
  • the head 38 having the axis of symmetry the axis Z, cooperates again with the base 50 to immobilize the carriage 30 in rotation.
  • the operator moves the upper part 14 according to a path necessarily opposite to that described previously.
  • electrical means for example motorization means intended for drive the upper part 14
  • the electric cables extending if necessary between this part 14 and this base 16 are not liable to accidentally wrap around the carriage 30 following successive rotations of the upper part 14 still in the Same direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs Characterized By Structure (AREA)

Description

La présente invention concerne un siège tournant à mouvement perfectionné, notamment pour véhicule ferroviaire.The present invention relates to a rotary seat with improved movement, especially for rail vehicles.

On connaít déjà dans l'état de la technique un siège du type comprenant une partie supérieure mobile de réception d'au moins un occupant portée par une partie inférieure fixe formant piétement et des moyens de retournement de la partie supérieure d'avant en arrière et réciproquement.We already know in the prior art a seat of the type comprising a mobile upper part for receiving at least one occupant carried by a part fixed lower forming base and turning means of the upper part back and forth and vice versa.

Les sièges de ce type sont agencés en particulier dans les véhicules ferroviaires. Les moyens de retournement d'un siège permettent d'inverser l'orientation avant-arrière de ce siège de façon à placer ce siège et le(s) passager(s) qui l'occupe(nt) dans le sens de déplacement du véhicule, ceci quel que soit le sens dans lequel ce véhicule parcourt un trajet.Seats of this type are arranged in particular in vehicles rail. The means for reversing a seat make it possible to reverse the orientation front-rear of this seat so as to place this seat and the passenger (s) occupying it (s) in the direction of movement of the vehicle, regardless of the direction in which this vehicle travels a path.

Habituellement, les sièges d'un véhicule ferroviaire sont agencés à proximité d'une paroi latérale gauche ou droite de ce véhicule.Usually the seats of a railway vehicle are arranged close a left or right side wall of this vehicle.

L'espace entre les sièges et la paroi latérale voisine étant de préférence la plus réduite possible, le mouvement de retournement d'un siège d'avant en arrière (et inversement) par une simple rotation de la partie supérieure mobile du siège autour d'un axe vertical fixe est entravé par la paroi latérale. De ce fait, généralement le retournement d'un siège est réalisé, tout d'abord, en écartant la partie supérieure mobile de la paroi voisine du siège, puis en faisant tourner cette partie mobile autour d'un axe vertical et enfin en rapprochant cette partie mobile de la paroi voisine du siège.The space between the seats and the neighboring side wall is preferably the most reduced possible, the movement of a seat from front to back (and conversely) by simply rotating the movable upper part of the seat around a fixed vertical axis is hindered by the side wall. Because of this, generally the reversal a seat is made, first of all, by moving the movable upper part of the wall next to the seat, then by rotating this movable part around a vertical axis and finally by bringing this movable part closer to the wall next to the seat.

Un siège conforme au préambule de la revendication 1 est connu de US-1 902 282.A seat according to the preamble of claim 1 is known from US-1,902,282.

L'invention a pour but de proposer un siège, notamment pour véhicule ferroviaire, muni de moyens de retournement peu encombrants, légers et simples à manoeuvrer afin de permettre d'inverser rapidement l'orientation avant-arrière de l'ensemble des sièges d'un véhicule ferroviaire.The object of the invention is to provide a seat, in particular for a vehicle rail, equipped with space-saving turning means, light and simple to maneuver in order to quickly reverse the front-rear orientation of all the seats of a railway vehicle.

A cet effet, l'invention a pour objet un siège selon la revendication 1. To this end, the invention relates to a seat according to claim 1.

Les revendications dépendantes portent sur des modes particuliers de réalisation. The dependent claims relate to particular modes of production.

Conformément à la revendication 10, l'invention a également pour objet un véhicule ferroviaire comprenant un siège tel que défini ci-dessus.According to claim 10, the invention also relates to a rail vehicle comprising a seat as defined above.

L'invention sera mieux comprise à la lecture de la description qui va suivre donnée uniquement à titre d'exemple et faite en référence aux dessins dans lesquels :

  • la figure 1 est une vue en élévation d'un siège selon l'invention ;
  • la figure 2 est une vue en coupe suivant un plan vertical du piétement du siège représenté sur la figure 1 ;
  • la figure 3 est une vue en coupe suivant la ligne 3-3 de la figure 2 ;
  • la figure 4 est une vue de dessus de la figure 2 ;
  • les figures 5 à 9 sont des vues de dessus, schématiques, du siège représenté sur la figure 1, montrant ce dernier dans des positions successives au cours d'une opération de retournement du siège.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the drawings in which:
  • Figure 1 is an elevational view of a seat according to the invention;
  • Figure 2 is a sectional view along a vertical plane of the base of the seat shown in Figure 1;
  • Figure 3 is a sectional view along line 3-3 of Figure 2;
  • Figure 4 is a top view of Figure 2;
  • Figures 5 to 9 are schematic top views of the seat shown in Figure 1, showing the latter in successive positions during an inversion of the seat.

On a représenté sur la figure 1 un siège 10, selon l'invention, agencé dans un véhicule ferroviaire 12.FIG. 1 shows a seat 10, according to the invention, arranged in a rail vehicle 12.

Le siège 10 comporte une partie supérieure mobile 14 portée par une partie inférieure fixe 16 solidaire d'un plancher 18 du véhicule 12. La partie supérieure 14 est destinée à recevoir au moins un occupant, par exemple deux occupants comme dans le cas représenté sur la figure 1.The seat 10 comprises a movable upper part 14 carried by a part fixed lower 16 secured to a floor 18 of the vehicle 12. The upper part 14 is intended to receive at least one occupant, for example two occupants as in the case shown in Figure 1.

De façon classique, la partie supérieure 14 comporte des matelassures d'assise 20 et de dossier 22 ainsi que des accoudoirs 24. La partie supérieure 24 est disposée à proximité d'une paroi latérale 26 du véhicule 12.Conventionally, the upper part 14 includes seat cushions 20 and backrest 22 as well as armrests 24. The upper part 24 is arranged at proximity of a side wall 26 of the vehicle 12.

Le siège 10 comprend également des moyens 28 de retournement de la partie supérieure 14 d'avant en arrière et réciproquement. Ces moyens de retournement 28, illustrés plus en détail sur les figures 2 à 9, permettent de placer le siège 10 dans l'une ou l'autre de ses deux positions d'utilisation normale représentées sur les figures 5 et 9.The seat 10 also includes means 28 for turning over the part upper 14 from front to back and vice versa. These turning means 28, illustrated in more detail in Figures 2 to 9, allow to place the seat 10 in one or the other of its two normal use positions shown in Figures 5 and 9.

Les moyens de retournement 28 comprennent un chariot 30 reliant la partie supérieure 14 et le piétement 16 du siège.The turning means 28 comprise a carriage 30 connecting the part upper 14 and the base 16 of the seat.

Ce chariot 30, solidaire de la partie supérieure 14, est monté déplaçable en rotation autour d'un axe sensiblement vertical Z, lié à ce chariot, et en translation sensiblement perpendiculairement à cet axe Z dans une lumière rectiligne formant guide 32 ménagée dans une paroi 34 sensiblement horizontale délimitant le piétement 16 (voir notamment figures 2 à 4). This carriage 30, integral with the upper part 14, is mounted movable in rotation about a substantially vertical axis Z, linked to this carriage, and in translation substantially perpendicular to this Z axis in a rectilinear light forming a guide 32 formed in a substantially horizontal wall 34 delimiting the base 16 (see especially Figures 2 to 4).

La paroi 34 sépare deux parties du chariot 30, respectivement intérieure et extérieure au piétement 16, ces deux parties étant reliées entre elles par une partie intermédiaire 36 formant pivot d'axe Z.The wall 34 separates two parts of the carriage 30, respectively inner and external to the base 16, these two parts being interconnected by a part intermediate 36 forming pivot of axis Z.

Le guide 32 s'étend sensiblement parallèlement à un plan vertical transversal du véhicule, tel que le plan de la figure 1.Guide 32 extends substantially parallel to a transverse vertical plane of the vehicle, such as the plan in Figure 1.

La partie extérieure du chariot 30 forme une tête 38 d'appui de ce chariot sur la paroi 34 du piétement. La tête 38 est en contact glissant avec la paroi 34.The external part of the carriage 30 forms a head 38 for supporting this carriage on the wall 34 of the base. The head 38 is in sliding contact with the wall 34.

Le chariot 30 est rappelé élastiquement en position de repos, contre une première extrémité 32A du guide (à gauche en considérant la figure 4) par un ressort de traction 40 accroché sur le piétement 16 et la partie intérieure du chariot 30.The carriage 30 is resiliently returned to the rest position, against a first end 32A of the guide (on the left considering FIG. 4) by a spring traction 40 hung on the base 16 and the interior part of the carriage 30.

La première extrémité 32A du guide est la plus proche de la paroi latérale 26 du véhicule, voisine du siège, la seconde extrémité 36B du guide (à droite en considérant la figure 2) étant donc la plus éloignée de cette paroi latérale 26.The first end 32A of the guide is closest to the side wall 26 of the vehicle, next to the seat, the second end 36B of the guide (on the right considering FIG. 2) therefore being the furthest from this side wall 26.

Afin de faciliter le guidage en translation du chariot 30, la partie intérieure de ce chariot est montée rotative autour de l'axe Z sur une traverse 42 coulissante sur une paire de rails 44 sensiblement parallèles au guide 32. Les rails 44, solidaires du piétement 16, sont ménagés par exemple à l'intérieur de ce piétement 16, sur des parois sensiblement verticales délimitant le piétement 16 (voir notamment figures 2 et 3).In order to facilitate the guiding in translation of the carriage 30, the inner part of this carriage is rotatably mounted around the Z axis on a sliding cross member 42 on a pair of rails 44 substantially parallel to the guide 32. The rails 44, integral with the base 16, are arranged for example inside this base 16, on walls substantially vertical delimiting the base 16 (see in particular Figures 2 and 3).

Le piétement 16 et le chariot 30 comportent des formes complémentaires d'immobilisation en rotation de ce chariot lorsqu'il est dans sa position de repos telle que représentée notamment sur les figures 2 et 4. Dans l'exemple décrit, ces formes complémentaires sont ménagées, l'une 46, sur le contour de la tête 38 du chariot, et l'autre 48, sur un socle 50 agencé sur la paroi 34. Les surfaces complémentaires d'immobilisation 46,48 peuvent avantageusement être délimitées par des bords biseautés favorisant l'immobilisation verticale du chariot 30.The base 16 and the carriage 30 have complementary shapes for immobilizing this carriage in rotation when it is in its rest position such that shown in particular in Figures 2 and 4. In the example described, these shapes complementary are provided, one 46, on the contour of the head 38 of the carriage, and the other 48, on a base 50 arranged on the wall 34. The complementary immobilization surfaces 46.48 can advantageously be delimited by bevelled edges favoring the vertical immobilization of the carriage 30.

On notera que la forme d'immobilisation 46 ménagée sur la tête 38 du chariot a pour axe de symétrie l'axe Z.Note that the immobilization form 46 formed on the head 38 of the carriage has as axis of symmetry the axis Z.

Les moyens de retournement 28 comprennent également des moyens 52 d'entraínement en translation du chariot 30 le long du guide 32, représentés notamment sur la figure 2, et des moyens 54 à engrenage de transformation de ce mouvement de translation en mouvement de rotation autour de l'axe Z du chariot 30, représentés notamment sur les figures 5 et suivantes. The turning means 28 also include means 52 drive in translation of the carriage 30 along the guide 32, shown in particular in FIG. 2, and means 54 with gear for transforming this movement of translational movement in rotation about the Z axis of the carriage 30, shown especially in Figures 5 and following.

Dans l'exemple illustré, les moyens d'entraínement 52 comprennent un câble de traction 56 comportant une première extrémité reliée à la partie intérieure du chariot 30 et une seconde extrémité reliée à un levier de commande 58.In the example illustrated, the drive means 52 comprise a cable traction device 56 having a first end connected to the inner part of the carriage 30 and a second end connected to a control lever 58.

Ce levier de commande 58 comporte une première extrémité d'appui 58A articulée à l'intérieur du piétement 16 autour d'un axe géométrique sensiblement orthogonal à l'axe Z, et une seconde extrémité de manoeuvre 58B s'étendant à l'extérieur du piétement 16 à travers une ouverture 60 de ce dernier.This control lever 58 has a first support end 58A articulated inside the base 16 around a geometric axis substantially orthogonal to the Z axis, and a second operating end 58B extending outside of the base 16 through an opening 60 of the latter.

On notera que le câble s'étend entre le chariot 30 et le levier de commande 58 sur une poulie de renvoi 62.Note that the cable extends between the carriage 30 and the control lever 58 on a return pulley 62.

En abaissant le levier de commande 58 depuis sa position haute, représentée en trait plein sur la figure 2, jusqu'à sa position basse, représentée en traits mixtes sur la figure 2, on tire le chariot 30 par l'intermédiaire du câble 56 à l'encontre de la force élastique de rappel du ressort 40 de manière à déplacer ce chariot 30 jusqu'à la seconde extrémité 32B du guide.By lowering the control lever 58 from its high position, shown in solid lines in Figure 2, to its low position, shown in phantom in the Figure 2, the carriage 30 is pulled through the cable 56 against the force elastic return spring 40 so as to move this carriage 30 until the second end 32B of the guide.

Les moyens à engrenage 54 comprennent un pignon denté 64, solidaire en rotation du chariot 30, destiné à coopérer avec des première et seconde crémaillères 66,68 portées par un ensemble articulé 70.The gear means 54 comprise a toothed pinion 64, integral in rotation of the carriage 30, intended to cooperate with first and second racks 66,68 carried by an articulated assembly 70.

Le pignon 64, porté par la partie intérieure du chariot 30, a un axe coïncidant avec l'axe Z.The pinion 64, carried by the inner part of the carriage 30, has a coincident axis with the Z axis.

L'ensemble 70 est articulé autour de trois axes Z1 à Z3 sensiblement parallèles à l'axe Z. L'ensemble 70 comprend un cadre formant support 72, portant les crémaillères 66,68, et un organe de sélection de l'une ou l'autre des crémaillères muni d'une première extrémité formant bascule 74 et d'une seconde extrémité formant verge 76 déformable élastiquement.The assembly 70 is articulated around three axes Z1 to Z3 substantially parallel to the Z axis. The assembly 70 comprises a frame forming a support 72, carrying the racks 66.68, and a member for selecting one or other of the racks provided with a first tip forming rocker 74 and a second end forming rod 76 deformable elastically.

Le cadre 72 est articulé sur le piétement 16 autour du premier axe d'articulation Z1. La bascule 74 est articulée également sur le piétement 16 autour du second axe d'articulation Z2. La verge 76, constituée par exemple par un ressort de compression, comporte une extrémité de liaison avec la bascule 74 et une extrémité articulée sur le cadre 72 autour du troisième axe d'articulation Z3.The frame 72 is articulated on the base 16 around the first axis Z1 joint. The rocker 74 is also articulated on the base 16 around the second axis of articulation Z2. The rod 76, constituted for example by a spring of compression, has one end of connection with the flip-flop 74 and one end articulated on the frame 72 around the third axis of articulation Z3.

Le troisième axe d'articulation Z3, reliant entre eux le cadre 72 et l'organe de sélection, s'étend sensiblement entre les deux autres axes d'articulation Z1,Z2. The third axis of articulation Z3, connecting the frame 72 and the member of selection, extends substantially between the two other axes of articulation Z1, Z2.

Les crémaillères 66,68 comportent des dentures en vis-à-vis et sont disposées à peu près symétriquement par rapport à un plan contenant l'axe Z, de part et d'autre du pignon 64.The racks 66,68 have facing teeth and are arranged roughly symmetrically with respect to a plane containing the Z axis, on either side of the pinion 64.

On notera que, lorsque le chariot 30 est en position de repos, le pignon 64, logé à l'intérieur du cadre 72, est à l'écart des crémaillères 66,68 (voir figure 5).It will be noted that, when the carriage 30 is in the rest position, the pinion 64, housed inside the frame 72, is away from the racks 66,68 (see Figure 5).

Le pignon 64 est destiné à engrener avec la première crémaillère 66 lorsqu'il se déplace en translation de la première extrémité 32A vers la seconde extrémité 32B du guide et avec la seconde crémaillère 68 lorsqu'il se déplace en sens inverse, de la seconde extrémité 32B vers la première extrémité 32A du guide.The pinion 64 is intended to mesh with the first rack 66 when it moves in translation from the first end 32A to the second end 32B of the guide and with the second rack 68 when it moves in the opposite direction, from the second end 32B towards the first end 32A of the guide.

On notera que, lorsque le chariot 30 se déplace de la première extrémité 32A vers la seconde extrémité 32B du guide, il est soumis tout d'abord à un simple mouvement de translation puis à un mouvement de translation combiné à un mouvement de rotation autour de l'axe Z sous l'effet de l'engrènement du pignon 64 avec la première crémaillère 66. La succession de ces mouvements est inversée lorsque le chariot est déplacé en sens contraire de la seconde extrémité 32B vers la première extrémité 32A du guide.Note that when the carriage 30 moves from the first end 32A towards the second end 32B of the guide, it is first subjected to a simple movement of translation then a translational movement combined with a rotational movement around the Z axis under the effect of the meshing of the pinion 64 with the first rack 66. The succession of these movements is reversed when the carriage is moved in the opposite direction opposite from the second end 32B to the first end 32A of the guide.

Chaque crémaillère 66,68 est sélectionnée en position d'engrènement avec le pignon 64 en faisant franchir au troisième axe d'articulation Z3 une position dans laquelle il est coplanaire avec les deux autres axes d'articulation Z1,Z2. Le franchissement de cette position est obtenu en actionnant l'organe de sélection, plus particulièrement la bascule 74 de cet organe, avec un doigt de sélection 78 porté par le chariot 30. La bascule 74 permet donc de placer le cadre 72 dans deux positions stables sensiblement symétriques par rapport au plan contenant les premiers et seconds axes d'articulation Z1,Z2.Each rack 66,68 is selected in the engagement position with the pinion 64 by causing the third articulation axis Z3 to cross a position in which it is coplanar with the other two axes of articulation Z1, Z2. Crossing this position is obtained by actuating the selection member, more particularly the rocker 74 of this member, with a selection finger 78 carried by the carriage 30. The rocker 74 allows therefore to place the frame 72 in two stable positions which are substantially symmetrical by relative to the plane containing the first and second axes of articulation Z1, Z2.

En se référant notamment aux figures 2,3 et 5, on voit que le doigt de sélection 78 est monté pivotant autour de l'axe Z sur la partie intérieure du chariot 30.With particular reference to FIGS. 2, 3 and 5, it can be seen that the finger selection 78 is pivotally mounted around the Z axis on the inner part of the carriage 30.

Le doigt de sélection 78 est rappelé élastiquement dans une position de repos, telle que représentée sur la figure 5, par une paire de ressorts de traction antagonistes 80 reliant ce doigt de sélection 78 à la traverse coulissante 42. En position de repos, le doigt de sélection 78 a pour plan de symétrie le plan contenant les premier et deuxième axes d'articulation Z1,Z2. Le doigt de sélection 78 est donc déplaçable de part et d'autre de ce plan de symétrie à l'encontre de la force élastique de rappel de l'un ou l'autre des ressorts antagonistes 80.The selection finger 78 is resiliently returned to a rest position, as shown in Figure 5, by a pair of counter tension springs 80 connecting this selection finger 78 to the sliding cross member 42. In the rest position, the finger selection plane 78 has for plane of symmetry the plane containing the first and second axes Z1, Z2. The selection finger 78 is therefore movable on either side of this plane of symmetry against the elastic restoring force of one or other of the springs antagonists 80.

On décrira ci-dessous les principales étapes du retournement du siège 10 selon l'invention, en se référant notamment aux figures 5 à 9. The main stages of turning the seat 10 according to will be described below. the invention, with particular reference to Figures 5 to 9.

Initialement, la partie supérieure 14 du siège est dans une première position normale d'utilisation de ce siège telle que représentée sur la figure 5. Le chariot est sollicité par le ressort 40 contre la première extrémité 32A du guide. Les formes complémentaires 46,48 d'immobilisation en rotation du chariot coopèrent entre elles. Le levier de commande 58 est dans sa position haute (voir figure 2). Le pignon 64 est à l'écart des crémaillères 66,68.Initially, the upper part 14 of the seat is in a first position normal use of this seat as shown in Figure 5. The carriage is biased by the spring 40 against the first end 32A of the guide. Shapes complementary 46,48 immobilization in rotation of the carriage cooperate with each other. The control lever 58 is in its high position (see FIG. 2). Pinion 64 is the distance from the racks 66,68.

Pour retourner le siège 10, l'opérateur abaisse le levier de commande 58 (de préférence avec le pied) à l'encontre de la force de rappel du ressort 40, jusqu'à la position basse de ce levier représentée en traits mixtes sur la figure 2.To return the seat 10, the operator lowers the control lever 58 (from preferably with the foot) against the return force of the spring 40, up to the position bottom of this lever shown in phantom in Figure 2.

L'abaissement du levier de commande 58 a pour effet de déplacer le chariot 30 en translation, sensiblement parallèlement à un plan vertical transversal du véhicule 12, de la première extrémité 32A vers la seconde extrémité 32B du guide.Lowering the control lever 58 has the effect of moving the carriage 30 in translation, substantially parallel to a transverse vertical plane of the vehicle 12, the first end 32A towards the second end 32B of the guide.

Ce déplacement du chariot 30 permet d'écarter la partie supérieure 14 de la paroi latérale voisine 26.This movement of the carriage 30 allows the upper part 14 of the adjacent side wall 26.

A peu près à mi-course entre les deux extrémités 32A,32B du guide, le pignon 64 engrène avec la première crémaillère 66 ce qui a pour effet de faire tourner le chariot 30 et la partie supérieure 14 autour de l'axe Z, dans le sens horaire en considérant la figure 6.About halfway between the two ends 32A, 32B of the guide, the pinion 64 meshes with the first rack 66 which has the effect of turning the carriage 30 and the upper part 14 around the axis Z, clockwise when considering the figure 6.

Lorsque le chariot 30 atteint la seconde extrémité 32B du guide, le doigt de sélection 78 coopère avec une rampe de la bascule 74 afin de faire pivoter cette dernière autour de l'axe Z2, comme cela est représenté sur les figures 7 et 8. Le pivotement de la bascule 74, qui se fait à l'encontre de la force élastique de rappel du doigt de sélection 78 (ressorts antagonistes 80), permet au troisième axe d'articulation Z3 de franchir sa position dans laquelle il est coplanaire avec les deux autres axes d'articulation Z1,Z2 et ainsi de faire engrener le pignon 64 avec la seconde crémaillère 68.When the carriage 30 reaches the second end 32B of the guide, the finger selection 78 cooperates with a ramp of the scale 74 in order to rotate the latter around the axis Z2, as shown in Figures 7 and 8. The pivoting of the flip-flop 74, which goes against the elastic return force of the selection finger 78 (antagonistic springs 80), allows the third articulation axis Z3 to cross its position in which it is coplanar with the other two axes of articulation Z1, Z2 and thus making the pinion 64 mesh with the second rack 68.

On notera que, lorsque la chariot 30 a atteint la seconde extrémité 32B du guide, la partie supérieure 14 a effectué sensiblement un quart de tour, le levier de commande 58 étant dans sa position basse telle que représentée en traits mixtes sur la figure 2.It will be noted that, when the carriage 30 has reached the second end 32B of the guide, the upper part 14 has made substantially a quarter turn, the lever control 58 being in its low position as shown in dashed lines on the figure 2.

L'opérateur relâche ensuite le levier de commande 58 si bien que le ressort 40 rappelle automatiquement, d'une part, ce levier de commande 58 vers sa position haute, et d'autre part, le chariot 30 vers la première extrémité 32A du guide, dans un mouvement de translation inverse à celui décrit précédemment. The operator then releases the control lever 58 so that the spring 40 automatically recalls, on the one hand, this control lever 58 to its high position, and on the other hand, the carriage 30 towards the first end 32A of the guide, in a movement of reverse translation to that described above.

Le pignon 64, engrenant avec la seconde crémaillère 68, entraíne en rotation autour de l'axe Z le chariot 30 et la partie supérieure 14 du siège, toujours dans le même sens horaire en considérant les figures 5 à 9. Le pignon 64 coopère avec la seconde crémaillère 68 jusqu'à l'achèvement du retournement de la partie supérieure 14 du siège.The pinion 64, meshing with the second rack 68, rotates around the Z axis the carriage 30 and the upper part 14 of the seat, always in the same clockwise considering Figures 5 to 9. The pinion 64 cooperates with the second rack 68 until completion of the inversion of the upper part 14 of the seat.

Une fois le retournement terminé, le chariot 30, toujours rappelé élastiquement par le ressort 40, achève son déplacement par une translation le long du guide 32 jusqu'à la première extrémité 32A de ce guide de manière à rapprocher la partie supérieure 14 du siège de la paroi latérale 26, pour atteindre la seconde position normale d'utilisation du siège représentée sur la figure 9.Once the turnaround is complete, the carriage 30, always recalled elastically by the spring 40, completes its displacement by a translation along the guide 32 to the first end 32A of this guide so as to bring the part upper 14 of the seat of the side wall 26, to reach the second normal position of use of the seat shown in FIG. 9.

Dans cette dernière position, la tête 38, ayant pour axe de symétrie l'axe Z, coopère à nouveau avec le socle 50 pour immobiliser en rotation le chariot 30.In this latter position, the head 38, having the axis of symmetry the axis Z, cooperates again with the base 50 to immobilize the carriage 30 in rotation.

Pour replacer le siège dans sa position illustrée sur la figure 5, l'opérateur déplace la partie supérieure 14 selon un trajet obligatoirement inverse à celui décrit précédemment. Ainsi, lorsque la partie supérieure 14 et le piétement 16 du siège sont équipés de moyens électriques (par exemple des moyens de motorisation destinés à entraíner la partie supérieure 14), les câbles électriques s'étendant le cas échéant entre cette partie 14 et ce piétement 16 ne risquent pas de s'enrouler accidentellement autour du chariot 30 à la suite de rotations successives de la partie supérieure 14 toujours dans le même sens.To return the seat to its position illustrated in Figure 5, the operator moves the upper part 14 according to a path necessarily opposite to that described previously. Thus, when the upper part 14 and the base 16 of the seat are equipped with electrical means (for example motorization means intended for drive the upper part 14), the electric cables extending if necessary between this part 14 and this base 16 are not liable to accidentally wrap around the carriage 30 following successive rotations of the upper part 14 still in the Same direction.

Parmi les avantages de l'invention, on notera que celle-ci permet à un opérateur de retourner très facilement un siège en entraínant la partie supérieure mobile de ce dernier dans un mouvement général de retournement au moyen du levier 58, ceci sans que ce mouvement soit entravé par la paroi latérale du véhicule proche du siège.Among the advantages of the invention, it will be noted that it allows a operator very easily turn over a seat by driving the movable upper part of the latter in a general reversal movement by means of the lever 58, this without this movement is hindered by the side wall of the vehicle near the seat.

Claims (10)

  1. Seat of the type that comprises a movable upper part (14) for holding at least one occupant, supported by a fixed lower part forming the underframe (16), and means (28) for revolving the upper part (14) from forwards to rearwards and from rearwards to forwards, the revolving means (28) comprising
    a carriage (30) integral with the upper part (14) and mounted so as to be able to be rotated about an essentially vertical axis (Z) connected to this carriage, and so as to be able to be moved translationally essentially perpendicularly to this axis of rotation within a straight guide (32) carried by the underframe (16),
    characterized in that the revolving means also comprise means (52) for moving the carriage (30) translationally, and
    meshing means (54) for converting the translational movement of the carriage (30) into a rotational movement of this carriage (30).
  2. Seat according to Claim 1, characterized in that the meshing means (54) comprise a pinion (64) integral in rotation with the carriage (30), of axis coinciding with the axis (Z) of rotation of this carriage, designed to engage with a first or a second rack (66, 68) carried by the underframe (16), depending on how the carriage (30) is moving translationally in opposite directions in the course of an operation to revolve the upper part (14), the two racks (66, 68) extending approximately symmetrically with respect to a plane containing the axis (Z) of rotation of the carriage, on either side of the pinion (64).
  3. Seat according to Claim 2, characterized in that the racks (66, 68) are carried by an assembly (70) pivoting about three axes (Z1 to Z3) essentially parallel to the axis (Z) of rotation of the carriage, each rack (66, 68) being positioned as and when selected to mesh with the pinion (64) by causing one of the pivot axes to pass through a position in which it is coplanar with the other two pivot axes.
  4. Seat according to Claim 3, characterized in that the assembly (70) comprises a support (72) which carries the two racks (66, 68) and pivots on the underframe (16) about a first pivot axis (Z1), and a member (74, 76), pivoting on the underframe (16) about a second pivot axis (Z2), for selecting one or other of the racks (66, 68), the support (72) and the selector member (74, 76) pivoting on each other about the third pivot axis (Z3) which lies essentially between the other two pivot axes (Z1, Z2).
  5. Seat according to Claim 4, characterized in that the selector member comprises a first end forming a rocker (74) pivoting about the second pivot axis (22) and a second end forming an elastically deformable link (76) pivoting about the third pivot axis (Z3), the rocker (74) being designed to be acted upon by a selector finger (78) carried by the carriage (30).
  6. Seat according to Claim 5, characterized in that the link (76) comprises a compression spring.
  7. Seat according to Claim 5 or 6, characterized in that the selector finger (78) is restored elastically to a rest position in which its plane of symmetry is the plane containing the first and second pivot axes (Z1, Z2) in such a way that the selector finger (78) is movable to either side of this plane of symmetry against its elastic restoring force.
  8. Seat according to any one of the preceding claims, characterized in that the drive means (52) comprise a pull cable (56) having one end connected to the carriage (30) and one end connected to a control lever (58) pivoting on the underframe (16).
  9. Seat according to any one of the preceding claims, characterized in that the carriage (30) is restored elastically to the rest position against a first end (32A) of the guide, the underframe (16) and the carriage (30) having mating shapes (46, 48) for preventing rotation of this carriage (30) when the latter is in the rest position, the axis of symmetry of the anti-rotation shape (46) carried by the carriage (30) being the axis (Z) of rotation of this carriage.
  10. Railway vehicle characterized in that it comprises a seat according to any one of the preceding claims.
EP99402428A 1998-11-13 1999-10-04 Rotatable seat with improved movement, especially for a railway vehicle Expired - Lifetime EP1000831B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9814289A FR2785780B1 (en) 1998-11-13 1998-11-13 ROTATING SEAT WITH IMPROVED MOVEMENT, PARTICULARLY FOR RAIL VEHICLE
FR9814289 1998-11-13

Publications (2)

Publication Number Publication Date
EP1000831A1 EP1000831A1 (en) 2000-05-17
EP1000831B1 true EP1000831B1 (en) 2004-12-22

Family

ID=9532706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402428A Expired - Lifetime EP1000831B1 (en) 1998-11-13 1999-10-04 Rotatable seat with improved movement, especially for a railway vehicle

Country Status (7)

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US (1) US6332648B1 (en)
EP (1) EP1000831B1 (en)
JP (1) JP3853546B2 (en)
CA (1) CA2284448C (en)
DE (1) DE69922768T2 (en)
ES (1) ES2238096T3 (en)
FR (1) FR2785780B1 (en)

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Publication number Priority date Publication date Assignee Title
US7364234B2 (en) * 2005-08-25 2008-04-29 Brunswick Corporation Eccentric swivel mechanism for a vehicle seat
FR2920011B1 (en) * 2007-08-16 2010-02-12 Airbus SWIVEL SEAT FOR AN AIRCRAFT AND ASSEMBLY OF SUCH SEATS
US20090127908A1 (en) * 2007-10-04 2009-05-21 John Kucharski Seat Swivel Mechanism
DE102009056715A1 (en) 2009-12-04 2011-06-09 Bröcker, Matthias, Dipl.-Des. Fitting for transportation unit, particularly rail transport unit for retrofitting of passenger area to arrangement of bicycles or other bulky objects, has mounting body which is held in driving direction by linear guide
US8398143B1 (en) * 2010-04-19 2013-03-19 Randal B Haley Multi-configured double stroller apparatus and method of using same
US9428276B1 (en) 2015-02-19 2016-08-30 PAC Seating Systems, Inc. Swivel mechanism for vehicle seat
JP6753720B2 (en) * 2016-07-28 2020-09-09 コイト電工株式会社 Seat support mechanism
JP6549634B2 (en) * 2017-04-28 2019-07-24 コイト電工株式会社 Seat control device
DE102017117046A1 (en) * 2017-07-27 2019-01-31 Man Truck & Bus Ag Variable interior of a passenger compartment
JP7062710B2 (en) * 2020-02-28 2022-05-06 コイト電工株式会社 Seating device
JP7062709B2 (en) * 2020-02-28 2022-05-06 コイト電工株式会社 Seating device
JP7444031B2 (en) * 2020-11-13 2024-03-06 トヨタ紡織株式会社 rotating seat

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1902282A (en) * 1929-05-13 1933-03-21 Karpen & Bros S Reversible seat or chair
US2123927A (en) * 1936-06-04 1938-07-19 Heywood Wakefield Co Cam-type reversible car-seat base
US2147953A (en) * 1937-01-18 1939-02-21 Appleton Electric Co Switch device for spotlights
US2233478A (en) * 1938-10-27 1941-03-04 Heywood Wakefield Co Reversible seat base
US2183021A (en) * 1939-01-25 1939-12-12 Haywood Wakefield Company Reversible seat base
US2301279A (en) * 1940-10-08 1942-11-10 Heywood Wakefield Co Car seat reversing mechanism with gear

Also Published As

Publication number Publication date
DE69922768D1 (en) 2005-01-27
US6332648B1 (en) 2001-12-25
CA2284448C (en) 2006-08-01
ES2238096T3 (en) 2005-08-16
DE69922768T2 (en) 2005-12-08
FR2785780B1 (en) 2001-01-19
EP1000831A1 (en) 2000-05-17
CA2284448A1 (en) 2000-05-13
JP2000139608A (en) 2000-05-23
FR2785780A1 (en) 2000-05-19
JP3853546B2 (en) 2006-12-06

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