FR2755913A1 - Vehicle seat shock absorber - Google Patents

Vehicle seat shock absorber Download PDF

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Publication number
FR2755913A1
FR2755913A1 FR9613946A FR9613946A FR2755913A1 FR 2755913 A1 FR2755913 A1 FR 2755913A1 FR 9613946 A FR9613946 A FR 9613946A FR 9613946 A FR9613946 A FR 9613946A FR 2755913 A1 FR2755913 A1 FR 2755913A1
Authority
FR
France
Prior art keywords
frame
seat
rear part
support
occupant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR9613946A
Other languages
French (fr)
Other versions
FR2755913B1 (en
Inventor
Laurent Froc
Arnaud Mechelaere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR9613946A priority Critical patent/FR2755913B1/en
Publication of FR2755913A1 publication Critical patent/FR2755913A1/en
Application granted granted Critical
Publication of FR2755913B1 publication Critical patent/FR2755913B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42709—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure
    • B60N2/42718—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure with anti-submarining systems
    • 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
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
    • B60N2/4221—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal due to impact coming from the front

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The vehicle seat comprises a back (3) and a seat frame (2) articulated on a support (5) fixed to the vehicle near the frame front. A shock absorber is inserted between the back and the frame rear part. The articulation axis on the support is carried by the seat frame which carries seat occupant's load suspension localised between the frame lateral beams. During a collision vertical loads exerted by the occupant on the seat lower the rear part of the frame from the point H of the occupant relative to the suspension. This engenders a longitudinal constraint from rear to front on the front cross member. The rear part of the seat frame is supported on a fixed support (6) carrying guides for the rear part. The fixed support carries the seat back articulation axis and a guide groove (25) for absorbing the force of the anchoring components (24) of the rear part of the frame on the support.

Description

SIEGE ABSORBEUR D'ENERGIE
L'invention concerne un siège absorbeur d'énergie notamment de véhicule automobile du type comportant un dossier et une armature d'assise montée à articulation sur un support de siège solidaire du véhicule et localisé à proximité de la partie avant de ladite armature, et des moyens absorbeurs d'énergie intercalés entre ledit dossier et la partie arrière de ladite armature.ENERGY ABSORBING SEAT
The invention relates to an energy-absorbing seat, in particular for a motor vehicle, of the type comprising a backrest and a seat frame mounted for articulation on a seat support integral with the vehicle and located near the front part of said frame, and energy absorbing means interposed between said backrest and the rear part of said frame.

La publication US-A-5.125.598 décrit un siège absorbeur d'énergie dont l'armature d'assise est montée à pivotement et permet à l'occupant du siège d'occuper une position modifiée par rapprochement des cuisses de son buste.The publication US-A-5,125,598 describes an energy absorbing seat whose seat frame is pivotally mounted and allows the occupant of the seat to occupy a modified position by bringing the thighs closer to his bust.

Néanmoins lorsque l'occupant de siège sanglé par une ceinture de sécurité subit de fortes accélérations horizontales il importe que l'affaissement de la partie postérieure de l'assise soit suffisamment importante pour éviter le phénomène de sous-marinage au cours duquel s'opère un déplacement relatif non souhaité de la zone abdominale de l'occupant du siège par rapport à la sangle ventrale de la ceinture de sécurité.However, when the seat occupant strapped by a seat belt undergoes strong horizontal accelerations, it is important that the sagging of the rear part of the seat is significant enough to avoid the phenomenon of submarining during which a unwanted relative movement of the seat occupant's abdominal area relative to the lap belt of the seat belt.

L'invention a pour objet un siège absorbeur d'énergie de conception simplifiée dont refflcacité peut être obtenue sans affaissement notable de l'armature d'assise.The subject of the invention is an energy-absorbing seat of simplified design, the effectiveness of which can be obtained without significant sagging of the seat frame.

L'invention a également pour objet une structure de siège dont la technologie trouve tout naturellement une application sur les véhicules automobiles.The invention also relates to a seat structure, the technology of which naturally finds application in motor vehicles.

Selon l'invention raxe d'articulation sur le support de siège est porté à intérieur par un cadre constituant l'armature articulée, et que ledit cadre porte les moyens de suspension de la charge de roccupant du siège localisés entre les longerons latéraux dudit cadre, de sorte que les charges verticales exercées durant une collision par l'occupant du siège sur ce dernier engendrent rabaissement de la partie arrière de Varmature et celui du point H de Occupant du siège par rapport audits moyens de suspension, affin d'engendrer une contrainte longitudinale d'arrière en avant sur ladite traverse avant.According to the invention, the hinge pin on the seat support is carried inside by a frame constituting the articulated frame, and that said frame carries the means for suspending the load of seat occupant located between the side rails of said frame, so that the vertical loads exerted during a collision by the occupant of the seat on the latter generate lowering of the rear part of the frame and that of the point H of Occupant of the seat with respect to said suspension means, in order to generate a longitudinal stress from back to front on said front crossmember.

Le siège ainsi réalisé possède un encombrement sensiblement identique à celui d'un siège conventionnel, ce qui le rend particulièrement apte à améliorer la sécurité des passagers transportés.The seat thus produced has a space which is substantially identical to that of a conventional seat, which makes it particularly suitable for improving the safety of the passengers transported.

D'autres caractéristiques et avantages de Invention ressortiront de la description de réalisation du siège en référence aux dessins annexés dans lesquels - la figure 1 est une vue en perspective de la structure d'un siège absorbeur
d'énergie comportant une armature d'assise articulée, - la figure 2 est une représentation schématique d'une vue latérale du siège
en position d'utilisation de celui-ci précédant une collision, - la figure 3 est une représentation schématique d'une vue latérale du siège
illustrant le mouvement de l'assise dans les conditions d'une collision, - la figure 4 est une vue de dessus du montage fonctionnel de l'armature du
siège, - la figure 5 est une vue de détail de la rainure de guidage d'un élément
d'accrochage de Armature du siège.Other characteristics and advantages of the invention will emerge from the description of embodiment of the seat with reference to the appended drawings in which - Figure 1 is a perspective view of the structure of an absorbent seat
energy comprising an articulated seat frame, - Figure 2 is a schematic representation of a side view of the seat
in the position of use thereof before a collision, - Figure 3 is a schematic representation of a side view of the seat
illustrating the movement of the seat under the conditions of a collision, - Figure 4 is a top view of the functional mounting of the armature of the
seat, - Figure 5 is a detailed view of the guide groove of an element
for hanging the seat frame.

Le siège 10 conforme aux figures 1, 2, 4, 5 est représenté en sa position d'utilisation sous la forme d'une armature 2 d'assise et d'une armature articulée 3 de dossier.The seat 10 according to Figures 1, 2, 4, 5 is shown in its position of use in the form of a seat frame 2 and an articulated frame 3 of the backrest.

L'armature d'assise 2 est articulée autour d'un axe 4 porté par ladite armature et par des supports latéraux 5 solidaires du véhicule et localisés à proximité de la partie avant 2a de cette armature 2. The seat frame 2 is articulated around an axis 4 carried by said frame and by lateral supports 5 secured to the vehicle and located near the front part 2a of this frame 2.

L'armature d'assise 2 est également en appui sur des supports fixes 6 d'articulation du dossier 3, porteurs de moyens de guidage de la partie arrière 2ar de ladite armature. Bien entendu les supports 5, 6 peuvent être rigidement reliés run à rautre par l'intermédiaire d'un soubassement commun ou support 11 tel que représenté à la figure 1. Dans cette hypothèse le soubassement 11 peut être monté fixe ou coulissant sur des glissières de siège solidaires de traverses 13 de renforcement du plancher 14 du véhicule.The seat frame 2 is also supported on fixed supports 6 for articulation of the backrest 3, carrying means for guiding the rear part 2ar of said frame. Of course the supports 5, 6 can be rigidly connected run to rautre via a common base or support 11 as shown in Figure 1. In this case the base 11 can be mounted fixed or sliding on rails of seat integral with cross members 13 for reinforcing the floor 14 of the vehicle.

Ainsi que cela est visible à la figure 4, Armature 2 est constituée par un cadre sur lequel les longerons latéraux 23 portent une nappe de ressorts de suspension 22 de la charge de l'occupant du siège.As can be seen in Figure 4, Armature 2 is constituted by a frame on which the side rails 23 carry a sheet of suspension springs 22 of the load of the seat occupant.

La nappe de ressorts de suspension 22 est ainsi localisée entre deux longerons latéraux 23 dudit cadre.The sheet of suspension springs 22 is thus located between two lateral side members 23 of said frame.

La comparaison des figures 2 et 3 montre que les charges verticales F exercées par un occupant 0 sur le siège 10 durant une collision, engendrent rabaissement de la partie arrière 2ar de l'armature et celui du point H de Occupant 0 du siège par rapport à la partie avant 2a. n en résulte que Occupant 0 exerce sur la traverse avant 21 une contrainte de déformation longitudinale d'arrière en avant.The comparison of FIGS. 2 and 3 shows that the vertical loads F exerted by an occupant 0 on the seat 10 during a collision, generate lowering of the rear part 2ar of the frame and that of the point H of Occupant 0 of the seat relative to the front part 2a. As a result, Occupant 0 exerts on the front cross member 21 a longitudinal deformation constraint from back to front.

Selon une autre caractéristique de rinvention, la partie arrière du cadre 2, porte des éléments d'accrochage aux supports fixes 6.According to another characteristic of the invention, the rear part of the frame 2 carries elements for hooking to the fixed supports 6.

Les éléments d'accrochage sont constitués à titre d'exemple par des goujons 24 latéraux portés par les longerons 23. Les goujons 24 sont engagés dans un perçage dans lequel débouchent des rainures rétrécies de guidage curvilignes 25 à absorption d'effort dont rune est représentée à la figure 5.The hooking elements consist, for example, of lateral studs 24 carried by the side members 23. The studs 24 are engaged in a bore in which open curved guide grooves 25 are absorbed by force, one of which is shown in Figure 5.

Les rainures 25 sont découpées dans les supports 6 et se déforment en assurant le guidage des goujons 24 à la partie arrière 2ar de Armature 2 pendant rabaissement de celle-ci dans les conditions accidentelles précitées. The grooves 25 are cut from the supports 6 and are deformed by guiding the studs 24 to the rear part 2ar of the frame 2 during lowering of the latter under the accident conditions mentioned above.

La description du siège a été faite en référence du mode de réalisation illustré de celui-ci. Néanmoins des variantes de réalisation du siège issues de modifications de détail pourront être suggérées et envisagées par l'homme de tarot sans sortir du cadre de rinvention. The description of the seat has been made with reference to the illustrated embodiment thereof. However, embodiments of the seat resulting from modifications of detail may be suggested and envisaged by the tarot man without departing from the scope of the invention.

Claims (3)

REVENDICATIONS 1) Siège absorbeur d'énergie pour véhicules automobiles du type1) Energy absorbing seat for motor vehicles of the type comportant un dossier (3) et une armature (2) d'assise montée à comprising a backrest (3) and a seat frame (2) mounted at articulation sur un support (5) solidaire du véhicule et localisé à articulation on a support (5) integral with the vehicle and located at proximité de la partie avant (2a) de ladite armature (2) et des moyens proximity of the front part (2a) of said frame (2) and of the means absorbeurs d'énergie intercalés entre ledit dossier (3) et la partie arrière energy absorbers interposed between said backrest (3) and the rear part (2ar) de ladite armature, caractérisé par le fàit que raxe d'articulation sur (2ar) of said frame, characterized by the fact that a hinge pin on le support (5) est porté par un cadre d'armature (2) et que ledit cadre the support (5) is carried by a frame (2) and that said frame porte les moyens de suspension (22) de la charge de Occupant du siège carries the means of suspension (22) of the load of occupant of the seat localisés entre les longerons latéraux (23) dudit cadre, de sorte que les located between the side rails (23) of said frame, so that the charges verticales exercées par l'occupant du siège sur ce dernier, durant vertical loads exerted by the seat occupant on the seat during une collision, engendrent rabaissement de la partie arrière de l'armature  a collision, lead to a lowering of the rear part of the frame (2) et celui du point H de Occupant du siège, par rapport audits moyens (2) and that of point H of Occupant of the seat, in relation to the average audits de suspension, afin d'engendrer une contrainte longitudinale d'arrière en suspension, in order to generate a longitudinal rear stress in avant sur ladite traverse avant (21). front on said front cross member (21). 2) Siège absorbeur d'énergie selon la revendication 1, caractérisé par le fait2) energy absorbing seat according to claim 1, characterized by the fact que la partie arrière du cadre constitutif de l'armature d'assise (2) est en that the rear part of the frame constituting the seat frame (2) is in appui sur un support fixe (6) porteur des moyens de guidage de ladite support on a fixed support (6) carrying the means for guiding said partie arrière. rear part. 3) Siège absorbeur selon la revendication 2, caractérisé par le fait que le3) absorber seat according to claim 2, characterized in that the support fixe du cadre constitutif de Varmature d'assise (2) est porteur de fixed support of the frame of the seat frame (2) carries raxe d'articulation du dossier du siège et d'une rainure de guidage (25) à hinge pin of the seat back and a guide groove (25) to absorption d'effort d'éléments d'accrochage (24) de la partie arrière de force absorption of hooking elements (24) of the rear part of armature sur ledit support (6).  armature on said support (6).
FR9613946A 1996-11-15 1996-11-15 ENERGY ABSORBING SEAT Expired - Fee Related FR2755913B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9613946A FR2755913B1 (en) 1996-11-15 1996-11-15 ENERGY ABSORBING SEAT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9613946A FR2755913B1 (en) 1996-11-15 1996-11-15 ENERGY ABSORBING SEAT

Publications (2)

Publication Number Publication Date
FR2755913A1 true FR2755913A1 (en) 1998-05-22
FR2755913B1 FR2755913B1 (en) 1998-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9613946A Expired - Fee Related FR2755913B1 (en) 1996-11-15 1996-11-15 ENERGY ABSORBING SEAT

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FR (1) FR2755913B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1245437A1 (en) * 2001-03-28 2002-10-02 Johnson Controls GmbH Seating element for a vehicle seat with antisubmarining device
JP2007126051A (en) * 2005-11-04 2007-05-24 Delta Tooling Co Ltd Seat structure
DE102011054960A1 (en) * 2011-10-31 2013-05-02 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Seat component for arrangement below seat cushion of motor car seat, has attachment units that are formed such that displacement of seat component relative to rear portion allowed in crash position
WO2017042690A1 (en) 2015-09-07 2017-03-16 Ningbo Geely Automotive Research And Development Company Limited Method and vehicle seat arrangement comprising a deformation portion

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322280A (en) * 1971-07-13 1973-07-04 Chapple J E Motor vehicle automatic safety seat
US3998291A (en) * 1975-08-06 1976-12-21 Edwin George Davis Automotive safety seat
US4154472A (en) * 1977-09-09 1979-05-15 Gateway Industries, Inc. Method and apparatus for protecting a vehicle occupant
US4232895A (en) * 1977-07-11 1980-11-11 Japan Automobile Research Institute, Inc. Impact absorbing device for protecting vehicle's occupant from impact caused by collision
EP0463436A2 (en) * 1990-06-23 1992-01-02 Bayer Ag Vehicle seat
DE4300801A1 (en) * 1993-01-14 1994-07-21 Thomas Dipl Ing Fischer Automatic seat belt grabber for aircraft passenger seat

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322280A (en) * 1971-07-13 1973-07-04 Chapple J E Motor vehicle automatic safety seat
US3998291A (en) * 1975-08-06 1976-12-21 Edwin George Davis Automotive safety seat
US4232895A (en) * 1977-07-11 1980-11-11 Japan Automobile Research Institute, Inc. Impact absorbing device for protecting vehicle's occupant from impact caused by collision
US4154472A (en) * 1977-09-09 1979-05-15 Gateway Industries, Inc. Method and apparatus for protecting a vehicle occupant
EP0463436A2 (en) * 1990-06-23 1992-01-02 Bayer Ag Vehicle seat
DE4300801A1 (en) * 1993-01-14 1994-07-21 Thomas Dipl Ing Fischer Automatic seat belt grabber for aircraft passenger seat

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1245437A1 (en) * 2001-03-28 2002-10-02 Johnson Controls GmbH Seating element for a vehicle seat with antisubmarining device
JP2007126051A (en) * 2005-11-04 2007-05-24 Delta Tooling Co Ltd Seat structure
DE102011054960A1 (en) * 2011-10-31 2013-05-02 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Seat component for arrangement below seat cushion of motor car seat, has attachment units that are formed such that displacement of seat component relative to rear portion allowed in crash position
WO2017042690A1 (en) 2015-09-07 2017-03-16 Ningbo Geely Automotive Research And Development Company Limited Method and vehicle seat arrangement comprising a deformation portion
EP3347236A4 (en) * 2015-09-07 2019-05-01 Ningbo Geely Automobile Research & Development Co. Ltd. Method and vehicle seat arrangement comprising a deformation portion
US10814750B2 (en) 2015-09-07 2020-10-27 Ningbo Geely Automobile Research & Development Co., Ltd. Method and vehicle seat arrangement comprising a deformation portion

Also Published As

Publication number Publication date
FR2755913B1 (en) 1998-12-18

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Effective date: 20130731