WO2008031991A2 - Motor vehicle seat - Google Patents

Motor vehicle seat Download PDF

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Publication number
WO2008031991A2
WO2008031991A2 PCT/FR2007/051917 FR2007051917W WO2008031991A2 WO 2008031991 A2 WO2008031991 A2 WO 2008031991A2 FR 2007051917 W FR2007051917 W FR 2007051917W WO 2008031991 A2 WO2008031991 A2 WO 2008031991A2
Authority
WO
WIPO (PCT)
Prior art keywords
seat
frame
central portion
backrest
access
Prior art date
Application number
PCT/FR2007/051917
Other languages
French (fr)
Other versions
WO2008031991A3 (en
Inventor
Frédéric Combeau
Original Assignee
Peugeot Citroën Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peugeot Citroën Automobiles SA filed Critical Peugeot Citroën Automobiles SA
Publication of WO2008031991A2 publication Critical patent/WO2008031991A2/en
Publication of WO2008031991A3 publication Critical patent/WO2008031991A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
    • B60N2/3038—Cushion movements
    • B60N2/304—Cushion movements by rotation only
    • B60N2/3045—Cushion movements by rotation only about transversal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7023—Coach-like constructions
    • B60N2/7035—Cushions
    • B60N2/7047—Springs
    • B60N2/7058—Metallic springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R7/00—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps
    • B60R7/04—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks
    • B60R7/043—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks mounted on or under a seat

Definitions

  • the present invention relates generally to motor vehicle seats.
  • the invention relates to a motor vehicle seat, of the type comprising a frame that can be fixed on the floor of the vehicle, a seat bound to the frame, and a folder linked to the frame.
  • Such a seat is known from WO-99/42329, which describes a seat whose frame is integrated in a solid base, inside which is formed a storage bin. The seat is likely to tilt forward relative to the frame, so as to allow access from above to the storage bin.
  • Such a seat has the defect that the movement of the seat requires a significant free space around the seat, so as to prevent interference between the seat and other equipment.
  • the invention aims to provide a seat that is more ergonomic.
  • the invention relates to a motor vehicle seat of the aforementioned type, characterized in that the seat comprises a inspection door capable of selectively adopting a release position of a manhole to a space located under the seat through the seat, and a closed position of the manhole.
  • the seat may also have one or more of the following characteristics, considered individually or in any technically possible combination: - the seat comprises a peripheral part at least partially delimiting the access well, and a movable central part with respect to the peripheral part and constituting the inspection hatch;
  • the seat comprises pivot connection means from the central part to the frame; - The backrest is located near a rear transverse edge of the seat, the pivot connecting means being adapted to allow pivoting of the central portion of the seat relative to the peripheral portion around a transverse axis located near a transverse edge before the seat;
  • the central portion in the closed position extends rearwardly to a lower edge of the backrest, the backrest being movable relative to the frame between an erect position in which the file prevents the central portion from moving from its position d shutter at its release position, and at least one position tilted backwards in which the backrest allows the central portion to move from its closed position to its release position;
  • the seat comprises a ply of support springs of the central part of the seat in the closed position, and means for connecting the ply of springs to the frame;
  • the means for connecting the spring ply to the frame allow the spring ply to move relative to the frame between a position lying across the access well, and a retracted position in which said ply of springs releases the access shaft.
  • FIG. 1 is a perspective view of a seat according to the invention, the inspection door being shown in the release position;
  • FIG. 2 is a sectional view in a median longitudinal vertical plane of the seat, considered according to the incidence of the arrows II of Figure 1, the hatch being shown in the closed position;
  • - Figure 3 is a view similar to that of Figure 2, the hatch being shown in the release position;
  • FIG. 4 is a view similar to that of Figure 3, the seat back being shown tilted backwards;
  • FIG. 5 is a view similar to that of FIG. 4, the ply of support springs of the seat being shown in an erect position;
  • FIG. 6 is a view similar to that of Figure 5, the battery normally housed under the seat cushion being shown during extraction through the access shaft.
  • the seat 10 shown in Figure 1 comprises a substantially rectangular frame 14 may be mounted on the floor 12 of a motor vehicle, a seat 16 fixed to the frame 14, and a backrest 18 linked to the frame 14.
  • the frame 14 comprises two longitudinal side plates 20 and front transverse profiles 22 (see Figure 2) and rear 24 rigidly attached to the side plates 20.
  • the plates 20 and the front and rear profiles 22 and 24 define a central vacuum.
  • the longitudinal and transverse directions, the front and the rear are defined relative to the direction of normal movement of the vehicle.
  • the seat 10 also includes feet 26 rigidly fixed to the side plates 20, and having a lower end engageable in grooves 28 formed in the floor 12 of the vehicle.
  • the feet 26 are rigidly fixed to the floor 12 by screws 30.
  • the seat 16 extends horizontally, or is slightly inclined downwards from front to back.
  • the seat 16 comprises a U-shaped peripheral portion 32 rigidly fixed to the frame 14 and a central portion 34 movable relative to the peripheral portion 32 and disposed in the center of the U.
  • the U-shaped peripheral portion 32 extends generally along the two side plates 20 and the front transverse section 22.
  • the U-shaped peripheral portion 32 masks the plates 24 and the profile 22 and covers them upwardly and outwardly of the frame 14.
  • the frame 14 and the seat 16 are arranged at a distance above the floor 12 of the vehicle, so that equipment, such as a backup battery 35 or an additional battery intended to supply energy to the vehicle , can be arranged between, on the one hand, the frame 14 and the seat 16 and, on the other hand, the floor 12.
  • equipment such as a backup battery 35 or an additional battery intended to supply energy to the vehicle
  • the backrest 18 is mounted near a rear transverse edge 37 of the seat 16. It is mounted by a lower edge 36 pivoting about a transverse axis not shown relative to the frame 14. Said pivot axis extends slightly above the rear profile 24, and is mounted between the two side plates 20.
  • the backrest 18 is thus movable between an erected position, represented in FIGS. 1 to 3, substantially vertical or slightly inclined rearwardly from the lower edge 36, and a rearward pivoted position, in which the backrest 18 is strongly inclined backward from the vertical, as shown in Figure 4.
  • the peripheral portion 32 of the seat defines an access shaft 38 through the seat 16 to the space under the seat 10, that is to say between the 16 and the floor 12. More specifically, the access well 38 is delimited laterally and forwardly both by the frame 14 and the U-shaped peripheral portion 32, and rearwardly by the lower edge 36 of the file and the section 24.
  • the access well 38 has a rectangular section corresponding substantially to the section of the frame 14.
  • the central portion 34 of the seat also has a rectangular shape.
  • the seat 16 comprises pivot connection means of the central portion 34 to the frame 14 about a transverse axis 40.
  • the axis 40 extends slightly above the front profile 22, that is to say to near a transverse edge before 42 of the seat.
  • the central portion 34 thus constitutes a viewing hatch, movable relative to the peripheral portion 32 between a release position of the access well 38, shown in FIGS. 1 and 3, and a closed position of the manhole. 38, shown in Figure 2.
  • the central portion 34 In the closed position, the central portion 34 completely closes the well 38. It fits perfectly in the center of the peripheral portion 32, virtually without a solution of continuity between the parts 32 and 34. The seat 16 is then likely to receive a passenger in a sitting position.
  • the central portion 34 extends from the axis 40 rearwards to below the lower edge 36 of the backrest 18, as can be seen in FIG.
  • the central portion 34 is raised substantially vertically above the axis 40.
  • the seat 16 further comprises a sheet of springs 44 able to support the central portion 34 of the seat in the closed position, and connection means 46 of the ply of springs 44 to the frame 14.
  • the sheet of springs 44 comprises for example several flat corrugated springs arranged in the same plane, and fixing elements of the corrugated springs to each other.
  • the wave springs are arranged side by side, parallel to each other, and parallel to a longitudinal general direction. Rear ends of the wave springs are connected to the rear section 24, and are shaped to allow pivoting of the spring web 44 relative to this section.
  • the front ends of the corrugated springs are in hooks 48.
  • the hooks 48 are capable of being engaged at the top in orifices provided for this purpose in the front section 22.
  • connection means 46 between the ply 44 and the frame 14 are thus constituted by the two opposite ends of the corrugated springs.
  • the sheet 44 is thus capable of moving between a lying position across the access well 38, and a retracted position in which the sheet of springs 44 disengages the access well 38. In its supine position, the sheet of springs 44 extends substantially horizontally over the entire free section of the access well 38. In its erect position, illustrated in FIG. 5, the spring ply 44 is substantially vertically above the rear section 24.
  • the battery 35 is disposed immediately below the access well 38, and this well has dimensions such that the battery can be extracted upwards by the well through the seat 16.
  • the seat 10 In the initial state, the seat 10 is in its normal position of use, shown in Figure 2.
  • the sheet of springs 44 is in the supine position and rests via the hooks 48 on the front profile 22.
  • the part central 34 of the seat is in the closed position of the access shaft 38.
  • the back 18 is in the erect position.
  • the battery 35 is disposed under the seat 16, to the right of the access well 38.
  • a user wants to extract the battery 35 from the underside of the seat, it will, initially, move the backrest 18 in the tilted position to the rear. Indeed, in the upright position of the file, the lower edge 36 of the backrest interferes with the movement of the central portion 34, so that the backrest 18 prevents the central portion 34 of the seat from passing from its closed position to its release position of the access well 38. On the contrary, in When the position is tilted backwards, the backrest 18 allows the central portion 34 to move between its closed position and its disengaged position.
  • a second step the user rotates the central portion 34 of the seat forwardly about the axis 40, so as to pass this central portion 34 from its closed position of the access well to its release position. Then, it rotates the spring web 44 backwards, so as to move the spring web 44 from its supine position to its retracted position.
  • the access well 38 is then completely cleared and the user can extract the battery from the space under the seat 16 through the access well 38.
  • the vehicle seat described above has many advantages.
  • the additional cost of the seat is extremely limited, since this seat has no additional room compared to a conventional seat of the state of the art. The result is achieved simply by modifying the spring sheet and the design of the seat.
  • the access hole through the seat can be used for all kinds of operations requiring access under the seat, such as the screwing and unscrewing of the fastening screws of certain vehicle components on the floor .
  • These operations can conveniently be performed through the manhole, without having to disassemble the seat or to motivate the whole of the seat. Some operations can even be performed with the spring sheet lying down in the access well.
  • the seat described above can have multiple variants.
  • the backrest and the movable central portion of the seat can be drawn so that it is not necessary to tilt the backrest to move the central portion of the seat in the position of release of the well. 'access.
  • the shape of the central portion 34 of the seat and the access well 38 may not be rectangular, but present all kinds of shapes. All kinds of objects can be placed under the seat and extracted through the access hole, not just a battery.
  • the respective pivoting axes of the central part of the seat and / or the sheet of springs may not be longitudinal, but for example transverse.
  • the seat described above may be a right or left front seat of the vehicle, a right, left or central rear seat, or even a bench.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

The motor vehicle seat (10) comprises a frame (14) capable of being mounted on the floor (12) of the vehicle, a seat cushion (16) connected to the frame (14) and a backrest (18) connected to the frame (14). The seat cushion (16) comprises an inspection hatch (34) capable selectively of adopting a position in which it uncovers a pit (38) providing access to a space located under the seat (10) through the seat cushion (16) and a position in which it closes off the access pit (38).

Description

Siège de véhicule automobile Motor vehicle seat
La présente invention concerne en général les sièges de véhicule automobile.The present invention relates generally to motor vehicle seats.
Plus précisément, l'invention concerne un siège de véhicule automo- bile, du type comprenant un cadre susceptible d'être fixé sur le plancher du véhicule, une assise liée au cadre, et un dossier lié au cadre.More specifically, the invention relates to a motor vehicle seat, of the type comprising a frame that can be fixed on the floor of the vehicle, a seat bound to the frame, and a folder linked to the frame.
Un tel siège est connu du document WO-99/42329, qui décrit un siège dont le cadre est intégré dans une base pleine, à l'intérieur de laquelle est ménagé un bac de rangement. L'assise est susceptible de basculer vers l'avant par rapport au cadre, de manière à permettre l'accès par le haut au bac de rangement.Such a seat is known from WO-99/42329, which describes a seat whose frame is integrated in a solid base, inside which is formed a storage bin. The seat is likely to tilt forward relative to the frame, so as to allow access from above to the storage bin.
Un tel siège présente le défaut que le débattement de l'assise nécessite un volume libre important autour du siège, de manière à éviter qu'il se produise des interférences entre l'assise et d'autres équipements. Dans ce contexte, l'invention vise à proposer un siège qui soit plus ergonomique.Such a seat has the defect that the movement of the seat requires a significant free space around the seat, so as to prevent interference between the seat and other equipment. In this context, the invention aims to provide a seat that is more ergonomic.
A cette fin, l'invention porte sur un siège de véhicule automobile du type précité, caractérisé en ce que l'assise comporte une trappe de visite susceptible d'adopter sélectivement une position de dégagement d'un puits d'accès à un espace situé sous le siège à travers l'assise, et une position d'obturation du puits d'accès.To this end, the invention relates to a motor vehicle seat of the aforementioned type, characterized in that the seat comprises a inspection door capable of selectively adopting a release position of a manhole to a space located under the seat through the seat, and a closed position of the manhole.
Le siège peut également présenter une ou plusieurs des caractéristiques ci-dessous, considérées individuellement ou selon toutes les combinaisons techniquement possibles : - l'assise comprend une partie périphérique délimitant au moins partiellement le puits d'accès, et une partie centrale mobile par rapport à la partie périphérique et constituant la trappe de visite ;The seat may also have one or more of the following characteristics, considered individually or in any technically possible combination: - the seat comprises a peripheral part at least partially delimiting the access well, and a movable central part with respect to the peripheral part and constituting the inspection hatch;
- l'assise comprend des moyens de liaison pivot de la partie centrale au cadre ; - le dossier se dresse à proximité d'un bord transversal arrière de l'assise, les moyens de liaison pivot étant aptes à permettre un pivotement de la partie centrale de l'assise par rapport à la partie périphérique autour d'un axe transversal situé à proximité d'un bord transversal avant de l'assise ;the seat comprises pivot connection means from the central part to the frame; - The backrest is located near a rear transverse edge of the seat, the pivot connecting means being adapted to allow pivoting of the central portion of the seat relative to the peripheral portion around a transverse axis located near a transverse edge before the seat;
- la partie centrale en position d'obturation s'étend vers l'arrière jusque sous un bord inférieur du dossier, le dossier étant mobile par rapport au cadre entre une position dressée dans laquelle le dossier empêche la partie centrale de passer de sa position d'obturation à sa position de dégagement, et au moins une position basculée vers l'arrière dans laquelle le dossier autorise la partie centrale à passer de sa position d'obturation à sa position de dégagement ; - l'assise comprend une nappe de ressorts de soutien de la partie centrale de l'assise en position d'obturation, et des moyens de liaison de la nappe de ressorts au cadre ; et- The central portion in the closed position extends rearwardly to a lower edge of the backrest, the backrest being movable relative to the frame between an erect position in which the file prevents the central portion from moving from its position d shutter at its release position, and at least one position tilted backwards in which the backrest allows the central portion to move from its closed position to its release position; the seat comprises a ply of support springs of the central part of the seat in the closed position, and means for connecting the ply of springs to the frame; and
- les moyens de liaison de la nappe de ressorts au cadre autorisent un déplacement de la nappe de ressorts par rapport au cadre entre une po- sition couchée en travers du puits d'accès, et une position escamotée dans laquelle ladite nappe de ressorts dégage le puits d'accès.the means for connecting the spring ply to the frame allow the spring ply to move relative to the frame between a position lying across the access well, and a retracted position in which said ply of springs releases the access shaft.
D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée qui en est donnée ci-dessous, à titre indicatif et nullement limitatif, en référence aux figures annexées, parmi lesquelles : - la figure 1 est une vue en perspective d'un siège conforme à l'invention, la trappe de visite étant représentée en position de dégagement ;Other features and advantages of the invention will emerge from the detailed description given below, by way of indication and in no way limiting, with reference to the appended figures, in which: FIG. 1 is a perspective view of a seat according to the invention, the inspection door being shown in the release position;
- la figure 2 est une vue en coupe dans un plan vertical longitudinal médian du siège, considérée selon l'incidence des flèches II de la figure 1 , la trappe étant représentée en position d'obturation ; - la figure 3 est une vue similaire à celle de la figure 2, la trappe étant représentée en position de dégagement ;- Figure 2 is a sectional view in a median longitudinal vertical plane of the seat, considered according to the incidence of the arrows II of Figure 1, the hatch being shown in the closed position; - Figure 3 is a view similar to that of Figure 2, the hatch being shown in the release position;
- la figure 4 est une vue similaire à celle de la figure 3, le dossier du siège étant représenté basculé vers l'arrière ;- Figure 4 is a view similar to that of Figure 3, the seat back being shown tilted backwards;
- la figure 5 est une vue similaire à celle de la figure 4, la nappe de ressorts de soutien de l'assise étant représentée en position dressée ; etFIG. 5 is a view similar to that of FIG. 4, the ply of support springs of the seat being shown in an erect position; and
- la figure 6 est une vue similaire à celle de la figure 5, la batterie logée normalement sous l'assise du siège étant représentée en cours d'extraction à travers le puits d'accès. Le siège 10 représenté sur la figure 1 comporte un cadre 14 sensiblement rectangulaire susceptible d'être monté sur le plancher 12 d'un véhicule automobile, une assise 16 fixée au cadre 14, et un dossier 18 lié au cadre 14. Le cadre 14 comporte deux plaques latérales longitudinales 20 et des profilés transversaux avant 22 (voir figure 2) et arrière 24 rigidement fixées aux plaques latérales 20. Les plaques 20 et les profilés avant et arrière 22 et 24 délimitent un vide central. Dans la description qui va suivre, les directions longitudinale et transversale, l'avant et l'arrière sont définis relativement au sens de déplacement normal du véhicule.- Figure 6 is a view similar to that of Figure 5, the battery normally housed under the seat cushion being shown during extraction through the access shaft. The seat 10 shown in Figure 1 comprises a substantially rectangular frame 14 may be mounted on the floor 12 of a motor vehicle, a seat 16 fixed to the frame 14, and a backrest 18 linked to the frame 14. The frame 14 comprises two longitudinal side plates 20 and front transverse profiles 22 (see Figure 2) and rear 24 rigidly attached to the side plates 20. The plates 20 and the front and rear profiles 22 and 24 define a central vacuum. In the following description, the longitudinal and transverse directions, the front and the rear are defined relative to the direction of normal movement of the vehicle.
Le siège 10 comporte encore des pieds 26 rigidement fixés sur les plaques latérales 20, et présentant une extrémité inférieure susceptible d'être engagée dans des rainures 28 ménagées dans le plancher 12 du véhicule. Les pieds 26 sont rigidement fixés au plancher 12 par des vis 30. L'assise 16 s'étend horizontalement, ou est légèrement inclinée vers le bas d'avant en arrière.The seat 10 also includes feet 26 rigidly fixed to the side plates 20, and having a lower end engageable in grooves 28 formed in the floor 12 of the vehicle. The feet 26 are rigidly fixed to the floor 12 by screws 30. The seat 16 extends horizontally, or is slightly inclined downwards from front to back.
L'assise 16 comporte une partie périphérique en U 32 rigidement fixée au cadre 14 et une partie centrale 34 mobile par rapport à la partie périphérique 32 et disposée au centre du U. La partie périphérique en U 32 s'étend généralement le long des deux plaques latérales 20 et du profilé transversal avant 22. La partie périphérique en U 32 masque les plaques 24 et le profilé 22 et recouvre ceux-ci vers le haut et vers l'extérieur du cadre 14.The seat 16 comprises a U-shaped peripheral portion 32 rigidly fixed to the frame 14 and a central portion 34 movable relative to the peripheral portion 32 and disposed in the center of the U. The U-shaped peripheral portion 32 extends generally along the two side plates 20 and the front transverse section 22. The U-shaped peripheral portion 32 masks the plates 24 and the profile 22 and covers them upwardly and outwardly of the frame 14.
Le cadre 14 et l'assise 16 sont disposés à distance au-dessus du plancher 12 du véhicule, de telle sorte qu'un équipement, tel qu'une batterie de secours 35 ou une batterie additionnelle destinée à fournir de l'énergie au véhicule, peut être disposé entre, d'une part, le cadre 14 et l'assise 16 et, d'autre part, le plancher 12.The frame 14 and the seat 16 are arranged at a distance above the floor 12 of the vehicle, so that equipment, such as a backup battery 35 or an additional battery intended to supply energy to the vehicle , can be arranged between, on the one hand, the frame 14 and the seat 16 and, on the other hand, the floor 12.
Le dossier 18 se dresse à proximité d'un bord transversal arrière 37 de l'assise 16. Il est monté par un bord inférieur 36 pivotant autour d'un axe transversal non représenté par rapport au cadre 14. Ledit axe de pivotement s'étend légèrement au-dessus du profilé arrière 24, et est monté entre les deux plaques latérales 20. Le dossier 18 est ainsi mobile entre une position dressée, représentée sur les figures 1 à 3, sensiblement verticale ou légèrement inclinée vers l'arrière à partir du bord inférieur 36, et une position basculée vers l'arrière, dans laquelle le dossier 18 est fortement incliné vers l'arrière par rapport à la verticale, comme le montre la figure 4.The backrest 18 is mounted near a rear transverse edge 37 of the seat 16. It is mounted by a lower edge 36 pivoting about a transverse axis not shown relative to the frame 14. Said pivot axis extends slightly above the rear profile 24, and is mounted between the two side plates 20. The backrest 18 is thus movable between an erected position, represented in FIGS. 1 to 3, substantially vertical or slightly inclined rearwardly from the lower edge 36, and a rearward pivoted position, in which the backrest 18 is strongly inclined backward from the vertical, as shown in Figure 4.
Comme le montrent les figures 1 et 3, la partie périphérique 32 de l'assise délimite un puits d'accès 38 à travers l'assise 16 à l'espace situé sous le siège 10, c'est-à-dire entre l'assise 16 et le plancher 12. Plus précisément, le puits d'accès 38 est délimité latéralement et vers l'avant à la fois par le cadre 14 et par la partie périphérique en U 32, et vers l'arrière par le bord inférieur 36 du dossier et le profilé 24. Le puits d'accès 38 présente une section rectangulaire correspondant sensiblement à la section du cadre 14.As shown in Figures 1 and 3, the peripheral portion 32 of the seat defines an access shaft 38 through the seat 16 to the space under the seat 10, that is to say between the 16 and the floor 12. More specifically, the access well 38 is delimited laterally and forwardly both by the frame 14 and the U-shaped peripheral portion 32, and rearwardly by the lower edge 36 of the file and the section 24. The access well 38 has a rectangular section corresponding substantially to the section of the frame 14.
La partie centrale 34 de l'assise présente elle aussi une forme rectangulaire. L'assise 16 comprend des moyens de liaison pivot de la partie centrale 34 au cadre 14 autour d'un axe transversal 40. L'axe 40 s'étend légèrement au-dessus du profilé avant 22, c'est-à-dire à proximité d'un bord transversal avant 42 de l'assise.The central portion 34 of the seat also has a rectangular shape. The seat 16 comprises pivot connection means of the central portion 34 to the frame 14 about a transverse axis 40. The axis 40 extends slightly above the front profile 22, that is to say to near a transverse edge before 42 of the seat.
La partie centrale 34 constitue ainsi une trappe de visite, mobile par rapport à la partie périphérique 32 entre une position de dégagement du puits d'accès 38, représentée sur les figures 1 et 3, et une position d'obturation du puits d'accès 38, représentée sur la figure 2.The central portion 34 thus constitutes a viewing hatch, movable relative to the peripheral portion 32 between a release position of the access well 38, shown in FIGS. 1 and 3, and a closed position of the manhole. 38, shown in Figure 2.
En position d'obturation, la partie centrale 34 obture complètement le puits 38. Elle s'inscrit parfaitement au centre de la partie périphérique 32, pratiquement sans solution de continuité entre les parties 32 et 34. L'assise 16 est alors susceptible de recevoir un passager en position assise.In the closed position, the central portion 34 completely closes the well 38. It fits perfectly in the center of the peripheral portion 32, virtually without a solution of continuity between the parts 32 and 34. The seat 16 is then likely to receive a passenger in a sitting position.
En position d'obturation, la partie centrale 34 s'étend à partir de l'axe 40 vers l'arrière jusque sous le bord inférieur 36 du dossier 18, comme visible sur la figure 2.In the closed position, the central portion 34 extends from the axis 40 rearwards to below the lower edge 36 of the backrest 18, as can be seen in FIG.
En position de dégagement, la partie centrale 34 se dresse sensible- ment verticalement au-dessus de l'axe 40.In the disengaged position, the central portion 34 is raised substantially vertically above the axis 40.
L'assise 16 comprend encore une nappe de ressorts 44 apte à soutenir la partie centrale 34 de l'assise en position d'obturation, et des moyens de liaison 46 de la nappe de ressorts 44 au cadre 14. La nappe de ressorts 44 comporte par exemple plusieurs ressorts ondulés plats disposés dans un même plan, et des éléments de fixation des ressorts ondulés les uns aux autres.The seat 16 further comprises a sheet of springs 44 able to support the central portion 34 of the seat in the closed position, and connection means 46 of the ply of springs 44 to the frame 14. The sheet of springs 44 comprises for example several flat corrugated springs arranged in the same plane, and fixing elements of the corrugated springs to each other.
Les ressorts ondulés sont disposés côte à côte, parallèlement les uns aux autres, et parallèlement à une direction générale longitudinale. Des extrémités arrière des ressorts ondulés sont liés au profilé arrière 24, et sont conformés de manière à permettre un pivotement de la nappe de ressorts 44 par rapport à ce profilé.The wave springs are arranged side by side, parallel to each other, and parallel to a longitudinal general direction. Rear ends of the wave springs are connected to the rear section 24, and are shaped to allow pivoting of the spring web 44 relative to this section.
Les extrémités avant des ressorts ondulés sont conformées en cro- chets 48. Les crochets 48 sont susceptibles de s'engager par le haut dans des orifices prévus à cet effet dans le profilé avant 22.The front ends of the corrugated springs are in hooks 48. The hooks 48 are capable of being engaged at the top in orifices provided for this purpose in the front section 22.
Les moyens de liaison 46 entre la nappe 44 et le cadre 14 sont ainsi constitués par les deux extrémités opposées des ressorts ondulés.The connection means 46 between the ply 44 and the frame 14 are thus constituted by the two opposite ends of the corrugated springs.
La nappe 44 est ainsi susceptible de se déplacer entre une position couchée en travers du puits d'accès 38, et une position escamotée dans laquelle la nappe de ressorts 44 dégage le puits d'accès 38. Dans sa position couchée, la nappe de ressorts 44 s'étend sensiblement horizontalement, sur toute la section libre du puits d'accès 38. Dans sa position dressée, illustrée sur la figure 5, la nappe de ressorts 44 se dresse sensiblement vertica- lement au-dessus du profilé arrière 24.The sheet 44 is thus capable of moving between a lying position across the access well 38, and a retracted position in which the sheet of springs 44 disengages the access well 38. In its supine position, the sheet of springs 44 extends substantially horizontally over the entire free section of the access well 38. In its erect position, illustrated in FIG. 5, the spring ply 44 is substantially vertically above the rear section 24.
La batterie 35 est disposée immédiatement en dessous du puits d'accès 38, et ce puits présente des dimensions telles que la batterie est susceptible d'être extraite vers le haut par le puits à travers l'assise 16.The battery 35 is disposed immediately below the access well 38, and this well has dimensions such that the battery can be extracted upwards by the well through the seat 16.
L'utilisation du siège décrit ci-dessus va maintenant être détaillée. A l'état initial, le siège 10 est dans sa position normale d'utilisation, représentée sur la figure 2. La nappe de ressorts 44 est en position couchée et repose par l'intermédiaire des crochets 48 sur le profilé avant 22. La partie centrale 34 de l'assise est en position d'obturation du puits d'accès 38. Le dossier 18 est en position dressée. La batterie 35 est disposée sous l'assise 16, au droit du puits d'accès 38.The use of the seat described above will now be detailed. In the initial state, the seat 10 is in its normal position of use, shown in Figure 2. The sheet of springs 44 is in the supine position and rests via the hooks 48 on the front profile 22. The part central 34 of the seat is in the closed position of the access shaft 38. The back 18 is in the erect position. The battery 35 is disposed under the seat 16, to the right of the access well 38.
Si un utilisateur veut extraire la batterie 35 du dessous du siège, il va, dans un premier temps, faire passer le dossier 18 en position basculée vers l'arrière. En effet, dans la position dressée du dossier, le bord inférieur 36 du dossier interfère avec le mouvement de la partie centrale 34, de sorte que le dossier 18 empêche la partie centrale 34 de l'assise de passer de sa position d'obturation à sa position de dégagement du puits d'accès 38. Au contraire, en position basculée vers l'arrière, le dossier 18 autorise le dépla- cernent de la partie centrale 34 entre sa position d'obturation et sa position de dégagement.If a user wants to extract the battery 35 from the underside of the seat, it will, initially, move the backrest 18 in the tilted position to the rear. Indeed, in the upright position of the file, the lower edge 36 of the backrest interferes with the movement of the central portion 34, so that the backrest 18 prevents the central portion 34 of the seat from passing from its closed position to its release position of the access well 38. On the contrary, in When the position is tilted backwards, the backrest 18 allows the central portion 34 to move between its closed position and its disengaged position.
Dans un deuxième temps, l'utilisateur fait pivoter la partie centrale 34 de l'assise vers l'avant autour de l'axe 40, de manière à faire passer cette partie centrale 34 de sa position d'obturation du puits d'accès à sa position de dégagement. Ensuite, il fait pivoter la nappe de ressorts 44 vers l'arrière, de manière à faire passer la nappe de ressort 44 de sa position couchée à sa position escamotée.In a second step, the user rotates the central portion 34 of the seat forwardly about the axis 40, so as to pass this central portion 34 from its closed position of the access well to its release position. Then, it rotates the spring web 44 backwards, so as to move the spring web 44 from its supine position to its retracted position.
Le puits d'accès 38 est alors entièrement dégagé et l'utilisateur peut extraire la batterie de l'espace situé sous l'assise 16 à travers le puits d'ac- ces 38.The access well 38 is then completely cleared and the user can extract the battery from the space under the seat 16 through the access well 38.
La remise du siège dans sa position normale d'utilisation se fait selon la séquence inverse, qui ne sera pas décrite plus en détail ici.The return of the seat in its normal position of use is in the reverse sequence, which will not be described in more detail here.
Le siège de véhicule décrit ci-dessus présente de multiples avantages. Le fait que l'assise comporte une trappe de visite, susceptible de dégager un puits d'accès à l'espace situé sous le siège à travers l'assise, permet d'extraire facilement un objet disposé sous l'assise, sans risque d'interférence de l'assise avec l'environnement du siège.The vehicle seat described above has many advantages. The fact that the seat has a inspection hatch, capable of releasing a well access to the space under the seat through the seat, makes it easy to extract an object placed under the seat, without risk of interference of the seat with the environment of the seat.
Le surcoût du siège est extrêmement limité, puisque ce siège ne comporte aucune pièce supplémentaire par rapport à un siège classique de l'état de la technique. Le résultat est obtenu simplement en modifiant la nappe de ressorts et la conception de l'assise.The additional cost of the seat is extremely limited, since this seat has no additional room compared to a conventional seat of the state of the art. The result is achieved simply by modifying the spring sheet and the design of the seat.
Par ailleurs, le puits d'accès à travers l'assise peut être utilisé pour toutes sortes d'opération nécessitant d'accéder sous le siège, comme par exemple le vissage et le dévissage des vis de fixation de certains organes du véhicule sur le plancher. Ces opérations peuvent commodément être réalisées à travers le puits d'accès, sans avoir à démonter le siège ou à esca- moter l'ensemble de l'assise. Certaines opérations peuvent même être réalisées avec la nappe de ressorts en position couchée dans le puits d'accès.Furthermore, the access hole through the seat can be used for all kinds of operations requiring access under the seat, such as the screwing and unscrewing of the fastening screws of certain vehicle components on the floor . These operations can conveniently be performed through the manhole, without having to disassemble the seat or to motivate the whole of the seat. Some operations can even be performed with the spring sheet lying down in the access well.
Le siège décrit ci-dessus peut présenter de multiples variantes.The seat described above can have multiple variants.
Ainsi, le dossier et la partie centrale mobile de l'assise peuvent être dessinés de manière à ce qu'il ne soit pas nécessaire de basculer le dossier en arrière pour faire passer la partie centrale de l'assise en position de dégagement du puits d'accès.Thus, the backrest and the movable central portion of the seat can be drawn so that it is not necessary to tilt the backrest to move the central portion of the seat in the position of release of the well. 'access.
La forme de la partie centrale 34 de l'assise et du puits d'accès 38 peut ne pas être rectangulaire, mais présenter toutes sortes de formes. Toutes sortes d'objets peuvent être placés sous le siège et extraits à travers le puits d'accès, et pas seulement une batterie.The shape of the central portion 34 of the seat and the access well 38 may not be rectangular, but present all kinds of shapes. All kinds of objects can be placed under the seat and extracted through the access hole, not just a battery.
Les axes de pivotement respectifs de la partie centrale de l'assise et/ou de la nappe de ressorts peuvent ne pas être longitudinaux, mais être par exemple transversaux. Le siège décrit ci-dessus peut être un siège avant droit ou gauche du véhicule, un siège arrière droit, gauche ou central, ou même une banquette. The respective pivoting axes of the central part of the seat and / or the sheet of springs may not be longitudinal, but for example transverse. The seat described above may be a right or left front seat of the vehicle, a right, left or central rear seat, or even a bench.

Claims

REVENDICATIONS
1.- Siège (10) de véhicule automobile comprenant un cadre (14) susceptible d'être monté sur le plancher (12) du véhicule, une assise (16) liée au cadre (14), et un dossier (18) lié au cadre (14), caractérisé en ce que l'assise (16) comporte une trappe de visite (34) susceptible d'adopter sélectivement une position de dégagement d'un puits (38) d'accès à un espace situé sous le siège (10) à travers l'assise (16), et une position d'obturation du puits d'accès (38).1.- A seat (10) of a motor vehicle comprising a frame (14) capable of being mounted on the floor (12) of the vehicle, a seat (16) connected to the frame (14), and a backrest (18) connected to the frame (14), characterized in that the seat (16) comprises a inspection hatch (34) capable of selectively adopting a position of clearance of a well (38) for access to a space under the seat ( 10) through the seat (16), and a closed position of the access shaft (38).
2. Siège selon la revendication 1 , caractérisé en ce que l'assise (16) comprend une partie périphérique (32) délimitant au moins partiellement le puits d'accès (38), et une partie centrale (34) mobile par rapport à la partie périphérique (32) et constituant la trappe de visite.2. Seat according to claim 1, characterized in that the seat (16) comprises a peripheral portion (32) defining at least partially the access shaft (38), and a central portion (34) movable relative to the peripheral portion (32) and constituting the inspection hatch.
3. Siège selon la revendication 2, caractérisé en ce que l'assise (16) comprend des moyens (40) de liaison pivot de la partie centrale (34) au ca- dre (14).3. Seat according to claim 2, characterized in that the seat (16) comprises means (40) for pivot connection of the central portion (34) to the frame (14).
4. Siège selon la revendication 3, caractérisé en ce que le dossier (18) se dresse à proximité d'un bord transversal arrière (37) de l'assise (16), les moyens de liaison pivot étant aptes à permettre un pivotement de la partie centrale (34) de l'assise (16) par rapport à la partie périphérique (32) au- tour d'un axe transversal (40) situé à proximité d'un bord transversal avant (42) de l'assise (16).4. Seat according to claim 3, characterized in that the backrest (18) is mounted near a rear transverse edge (37) of the seat (16), the pivot connecting means being adapted to allow pivoting of the central portion (34) of the seat (16) relative to the peripheral portion (32) around a transverse axis (40) located near a front transverse edge (42) of the seat ( 16).
5. Siège selon la revendication 4, caractérisé en ce que la partie centrale (34) en position d'obturation s'étend vers l'arrière jusque sous un bord inférieur (36) du dossier (18), le dossier (18) étant mobile par rapport au ca- dre (14) entre une position dressée dans laquelle le dossier (18) empêche la partie centrale (34) de passer de sa position d'obturation à sa position de dégagement, et au moins une position basculée vers l'arrière dans laquelle le dossier (18) autorise la partie centrale (34) à passer de sa position d'obturation à sa position de dégagement. 5. Seat according to claim 4, characterized in that the central portion (34) in the closed position extends rearwardly to a lower edge (36) of the backrest (18), the backrest (18) being movable relative to the frame (14) between an upright position in which the backrest (18) prevents the central portion (34) from passing from its closed position to its disengaged position, and at least one tilted position towards the in which the backrest (18) allows the central portion (34) to move from its closed position to its release position.
6. Siège selon l'une quelconque des revendications 2 à 5, caractérisé en ce que l'assise (16) comprend une nappe (44) de ressorts de soutien de la partie centrale (34) de l'assise (16) en position d'obturation, et des moyens de liaison (46) de la nappe de ressorts (44) au cadre (14). 6. Seat according to any one of claims 2 to 5, characterized in that the seat (16) comprises a ply (44) of support springs of the central portion (34) of the seat (16) in position shutter, and connecting means (46) of the spring web (44) to the frame (14).
7. Siège selon la revendication 6, caractérisé en ce que les moyens de liaison (46) de la nappe de ressorts (44) au cadre (14) autorisent un déplacement de la nappe de ressorts (44) par rapport au cadre (14) entre une position couchée en travers du puits d'accès (38), et une position escamotée dans laquelle ladite nappe (44) de ressorts dégage le puits d'accès (38). 7. Seat according to claim 6, characterized in that the connecting means (46) of the sheet of springs (44) to the frame (14) allow a displacement of the sheet of springs (44) relative to the frame (14) between a lying position across the access shaft (38) and a retracted position in which said spring web (44) clears the access shaft (38).
PCT/FR2007/051917 2006-09-13 2007-09-12 Motor vehicle seat WO2008031991A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0653705A FR2905639B1 (en) 2006-09-13 2006-09-13 SEAT OF MOTOR VEHICLE
FR0653705 2006-09-13

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WO2008031991A2 true WO2008031991A2 (en) 2008-03-20
WO2008031991A3 WO2008031991A3 (en) 2011-04-21

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PCT/FR2007/051917 WO2008031991A2 (en) 2006-09-13 2007-09-12 Motor vehicle seat

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WO (1) WO2008031991A2 (en)

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CN109866661A (en) * 2019-03-29 2019-06-11 重庆长安汽车股份有限公司 A kind of cushion turnover mechanism of automotive seat
DE102012021417B4 (en) 2012-10-27 2023-09-28 Mercedes-Benz Group AG Motor vehicle seat

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FR2948615B1 (en) * 2009-07-28 2011-08-26 Cera MOTOR VEHICLE SEAT CUSHION
FR2964916B1 (en) * 2010-09-16 2012-08-31 Renault Sa SEAT FOR MOTOR VEHICLE

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WO1999042329A1 (en) 1996-08-29 1999-08-26 Johnson Controls Automotive (Uk) Limited Seats for motor vehicles

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US6135549A (en) * 1998-08-14 2000-10-24 Johnson Controls Technology Company Vehicle seat with computer storage and work table
US6419313B1 (en) * 1999-06-09 2002-07-16 Magna Seating Systems Inc. Seat cushion with flip open storage bin
KR100559701B1 (en) * 2002-11-06 2006-03-10 미쯔비시 지도샤 고교 가부시끼가이샤 Seat structure for vehicle

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WO1999042329A1 (en) 1996-08-29 1999-08-26 Johnson Controls Automotive (Uk) Limited Seats for motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012021417B4 (en) 2012-10-27 2023-09-28 Mercedes-Benz Group AG Motor vehicle seat
CN109866661A (en) * 2019-03-29 2019-06-11 重庆长安汽车股份有限公司 A kind of cushion turnover mechanism of automotive seat

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FR2905639B1 (en) 2010-03-12
WO2008031991A3 (en) 2011-04-21
FR2905639A1 (en) 2008-03-14

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