FR2623450A1 - Variable suspension seat for a lightweight motorised vehicle - Google Patents

Variable suspension seat for a lightweight motorised vehicle Download PDF

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Publication number
FR2623450A1
FR2623450A1 FR8716382A FR8716382A FR2623450A1 FR 2623450 A1 FR2623450 A1 FR 2623450A1 FR 8716382 A FR8716382 A FR 8716382A FR 8716382 A FR8716382 A FR 8716382A FR 2623450 A1 FR2623450 A1 FR 2623450A1
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France
Prior art keywords
seat
bench
holes
vehicle
bench seat
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Granted
Application number
FR8716382A
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French (fr)
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FR2623450B1 (en
Inventor
Marc Soquet
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Individual
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Individual
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Priority to FR8716382A priority Critical patent/FR2623450B1/en
Publication of FR2623450A1 publication Critical patent/FR2623450A1/en
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Publication of FR2623450B1 publication Critical patent/FR2623450B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50Seat suspension devices
    • B60N2/502Seat suspension devices attached to the base of the seat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50Seat suspension devices
    • B60N2/54Seat suspension devices using mechanical springs

Abstract

Variable suspension seat for a lightweight motorised vehicle, characterised in that the chassis of the vehicle includes, at a suitable height and at a suitable distance from the steering column, a backrest support beam 2 which is horizontal and at a length which is substantially equal to the overall width of the vehicle, that each end of this backrest support beam 2 includes, substantially perpendicular to its axis, a seat support tube 3, that the seat 4 together with its backrest 5 which bears, with the possibility of sliding vertically, against the backrest support beam 2, includes at each of its ends a series of holes 6, 7 of which the line which connects their axes is substantially parallel to the edge of the horizontal part of the seat 4, that, at each end of the seat 4 at least one elastic cord 9, preferably made from rubber of the "Sandoz" type is wound, passing through the aforementioned holes 6, 7 between the end of the seat 4 and the seat support tube 3, and that the number of strands of the elastic cord or cords 9 serving to suspend the seat 4 may be reduced or increased by disengaging or engaging one or more ends of elastic cords 9, provided with protuberances or hooks, in or from one or more holes 7 of the seat or of the seat support tubes 3.

Description

Il est connu qu'il est interessant d'avoir une suspension avec une tres faible course pour les deux roues arrieres d'un vehicule leger motorise en consequence, les bras qui supportent les moyeux de roues arrieres sont relies chacun au chassis du vehicule par l'intermediaire d'element en caoutchouc relativement dur qui filtrent les vibrations mais dont l'ecrasement entre charge nulle et charge maxi ne depasse pas quelques millimetres.Cette faible course pour chacune des roues arrieres permet d'une part d'éviter au vehicule de basculer sur ses suspensions dans les virages et d'autre part d'equiper la partie mediane du chassis avec une boule pour attache de remorque, boule dont le centre se trouve sensiblement a la hauteur de l'axe de rotation des roues arr ieres, legerement en avant de cet axe; la hauteur du centre de la boule etant pratiquement constante, grace a la faible course de la suspension des roues, les rections d'une remorque non freine, tant en traction qu'en freinage, sont pratiquement negligeables sur la conduite du vehicule.It is known that it is interesting to have a suspension with a very short stroke for the two rear wheels of a light motorized vehicle consequently, the arms which support the rear wheel hubs are each connected to the chassis of the vehicle by the relatively hard rubber element intermediate which filters vibrations but whose crushing between zero load and maximum load does not exceed a few millimeters. This short stroke for each of the rear wheels allows on the one hand to prevent the vehicle from tipping over on its suspensions when cornering and on the other hand to equip the middle part of the chassis with a ball for trailer hitch, ball whose center is located substantially at the height of the axis of rotation of the rear wheels, slightly in before this axis; the height of the center of the ball being practically constant, thanks to the short stroke of the suspension of the wheels, the rections of an unbraked trailer, both in traction and in braking, are practically negligible on the driving of the vehicle.

Vue le poids a vide et la vitesse maxi relativement faible d'un vehicule leger motorise, environ 153 Kg et se Km/h, la faible course de suspension des roues arrieres n'a pratiquement pas d'influence sur la maniabilite du vehicule; par contre son influence sur le confort du ou des passagers est importante et il est necessaire d'avoir pour le ou les passagers une banquette tres bien suspendue par rapport au chassis du vehicule, la flexibilite de la suspension de la banquette par rapport au chassis doit permettre une course de l'ordre de 16 cm. pour avoir un bon confort, en consequence, cette flexibilite ne peut pas etre la meme s'il y a une ou deux personnes assises sur la banquette.In view of the curb weight and the relatively low maximum speed of a light motorized vehicle, around 153 kg and at km / h, the short suspension travel of the rear wheels has practically no influence on the handling of the vehicle; on the other hand its influence on the comfort of the passenger (s) is important and it is necessary to have for the passenger (s) a bench very well suspended with respect to the chassis of the vehicle, the flexibility of the suspension of the bench relative to the chassis must allow a stroke of the order of 16 cm. to have good comfort, therefore, this flexibility cannot be the same if there are one or two people seated on the bench.

Le fait de s'assoir sur la banquette genere une premiere course de suspension sous la charge statique du poids du ou des deux personnes cette course due a la charge statique est augmentee de la course due aux chocs dynamiques lorsque le vehicule, en roulant, passe sur une plaque d'egout ou un rail de tramway par exemple. Il est un fait que pour la meme flexibilite, la course de suspension "statique" plus "dynamique" sera tres différente s'il y a une ou deux personnes assises sur la banquette, or les vehicules legers motorises sont generalement utilises pour transporter soit une soit deux personnes.Avec une flexibilite pour deux personnes, la banquette sera trop haute et sa suspension sera trop raide lors de l'utilisation avec une seule personne; avec une flexibilite pour une personne, la banquette sera trop basse, aura une course trop grande et arrivera de suite en butee de fin de course lors de l'utilisation avec deux personnes.En ayant pour but d'eliminer l'inconvenient précite, la presente invention concerne une banquette a suspension variable pour vehicule leger motorise caracterise en ce que le chassis du vehicule comporte a une hauteur appropriee et a une distance appropriee de la colonne de direction une poutre appui dossier qui est horizontale et a une longueur sensiblement egale a la largeur hors tout du vehicule, que chaque extremite de cette poutre appui dossier comporte, sensiblement perpendiculaire a son axe, un tube support de banquette, que la banquette, avec son dossier qui prend appui en pouvant coulisser verticalement contre la poutre appui dossier comporte, a chacune de ses extremites, une serine de trous dont la ligne qui reunie leurs axes est sensiblement paralelle au bord de la parteie horizontale de la banquette, que au moins l'un des trous pour chaque serie de trous comporte une fente dirigee vers I'exterieure de la banquette, cette fente ayant une largeur generalement inferieure au diametre du trou, trou ayant une section conique la pointe du cone se situant au dessus de la banquette, que, a chaque extremite de la banquette, au moins une corde elastique, de preference en caoutchouc, genre "Sandoz", est enroulee, en passant dans les trous precites, entre l'extremite de la banquette et le tube support de banquette, et que le nombre de brins de la ou des cordes elastiques servant de suspension a la banquette peut etre reduit ou augmente en declanchant ou en enclanchant une ou plusieurs extremîtes de cordes elastiques, munies d'excroissances ou de crochets, d'un ou de plusieurs trous de la banquette ou des tubes support de banquette.Sitting on the seat generates a first suspension stroke under the static load of the weight of one or two people this stroke due to the static load is increased by the stroke due to dynamic shocks when the vehicle, while rolling, passes on a manhole cover or a tramway rail for example. It is a fact that for the same flexibility, the "static" plus "dynamic" suspension stroke will be very different if there are one or two people seated on the seat, but light motorized vehicles are generally used to transport either or two people. With a flexibility for two people, the bench will be too high and its suspension will be too stiff when used with one person; with flexibility for one person, the seat will be too low, will have too much travel and will immediately reach the end stop when used with two people. With the aim of eliminating the aforementioned drawback, the present invention relates to a seat with variable suspension for a light motorized vehicle characterized in that the vehicle chassis comprises at an appropriate height and at an appropriate distance from the steering column a backrest beam which is horizontal and at a length substantially equal to the overall width of the vehicle, which each end of this backrest support beam comprises, substantially perpendicular to its axis, a seat support tube, as the seat, with its backrest which is supported by being able to slide vertically against the backrest support beam, has each of its ends, a serine of holes whose line which joins their axes is substantially parallel to the edge of the horizontal part of the bench seat, that at least one of the holes for each series of holes has a slot directed towards the outside of the bench seat, this slot having a width generally less than the diameter of the hole, hole having a conical section with the point of the cone lying above the seat, that at each end of the seat, at least one elastic cord, preferably rubber, like "Sandoz", is wound, passing through the aforementioned holes, between the end of the seat and the bench support tube, and that the number of strands of the elastic cord (s) serving as suspension for the bench can be reduced or increased by starting or engaging one or more ends of elastic cords, provided with protuberances or hooks, d '' one or more holes in the bench or bench support tubes.

Les figures ci annexees representent a titre indicatif et non limitatif une banquette a suspension variable pour vehicule leger motorise selon l'invention,La fig.1 represente une vue laterale d'un vehicule leger motorise equipe d'une banquette a suspension variable selon l'invention.The appended figures represent by way of nonlimiting indication a bench seat with variable suspension for a light motorized vehicle according to the invention, FIG. 1 represents a side view of a light motorized vehicle fitted with a bench seat with variable suspension according to invention.

La fig.2 represente une vue laterale d'une banquette a suspension variable selon l'invention en position a vide avec suspension reglee pour deux personnes. La fig.3 represente une vue laterale d'une banquette a suspens ion variable selon l'invention en position a vide avec suspension reglee pour une seule personne. La fig.4 represente une demie vue de face d'une banquette a suspens ion variable selon l'inven- tion en position a vide avec suspension reglee pour deux personnes.Fig.2 shows a side view of a variable suspension seat according to the invention in the empty position with adjustable suspension for two people. Fig.3 shows a side view of a seat with variable ion suspension according to the invention in the empty position with adjustable suspension for one person. Fig.4 shows a half front view of a seat with variable suspension according to the invention in an empty position with adjustable suspension for two people.

La fig.5 represente une demie vue de face d'une banquette a suspension variable selon l'invention en position a vide avec suspension reglee pour une seule personne. La fig.6 est une vue de dessus d'un coin lateral arriere de la banquette. La fig.7 est une coupe selon plan VII
VII de la fig.6. 1 est la poutre qui relie la poutre appui dossier 2 au chassis du vehicule, 3 sont les tubes support de banquette, 4 est la banquette avec son dossier 5 qui prend appui, tout en coulissant verticalement, contre la poutre appui dossier 2. Chaque extremite de la banquette 4 est munie de six trous 6 et d'un trou 7 avec fente 8. 9 sont les cordes elastiques en caoutchouc qui passent dans les trous 6,7 de la banquette 4 tout en passant autour des tubes support de banquette 3.
Fig.5 shows a half front view of a variable suspension seat according to the invention in the empty position with adjustable suspension for one person. Fig.6 is a top view of a rear side corner of the seat. Fig. 7 is a section along plane VII
VII of fig. 6. 1 is the beam which connects the backrest support beam 2 to the chassis of the vehicle, 3 are the seat support tubes, 4 is the seat with its backrest 5 which bears, while sliding vertically, against the backrest support beam 2. Each end of the bench seat 4 is provided with six holes 6 and a hole 7 with a slot 8. 9 are the elastic rubber cords which pass through the holes 6,7 of the bench seat 4 while passing around the bench support tubes 3.

Dans le cas des fig.2 et 4 les cordes elastiques 9 suspendent la banquette 4 a chaque extremite avec 13 brins, dans le cas des fig.3 et 5 les cordes elastiques 9 suspendent la banquette 4 a chaque extremite avec 18 brins. La longueur totale a vide des cordes elastiques 9 ne variant pas, la suspension a 13 brins donne une hauteur de depart plus importante que pour la suspension a 18 brins. L'allongement statique de la suspension a 13 brins avec deux personnes est superieur a l'allongement statique de la suspension a 16 brins avec une seule personne, en consequence, la hauteur des passagers sera sensiblement la meme apres allongement statique pour deux personnes avec suspension a 13 brins ou une personne avec suspension a 18 brins.En ayant pour chaque rangee de trous les deux trous extremes avec fente, comme.indique en 8 sur les fig.5 et 7, il est possible de realiser la suspension a chaque extremite de la banquette 4 soit avec 13 brins,soit avec 12 brins,soit avec il brins, soit avec 18 brins ou soit avec 8 brins.Ces 5 possibilites, qui ne sont pas limitatives, permettent d'adapter la flexibil ite de la suspension et sa hauteur a la morphologie, poids et hauteur de tete, des deux ou du seul passager, ceci avec une manipulation tres simple. 18 sont des tiges de guidage qui sont relies a la banquette 4 par les chappes il, ces tiges 18 coulissent librement dans des tubes 12 qui sont solidaires du chassis du vehicule. 13 est le bouclier avant du vehicule sur lequel le pare brise galbe 14 est fixe. 16 est la lunette arriere qui est articulee sous le toit 15 et est reliee a la partie superieure du dossier 5 par la tablette articulee 17. Les articulations 18,19 et 2 permettent au dossier 5 de descendre et de monter selon les courses de la suspension de la banquette 4, ceci permet d'avoir une fermeture arriere comportant un toit a hauteur fixe, une lunette arriere a hauteur fixe et un dossier de banquette a hauteur variable. Il est evident que, sans rien changer au caractere de l'invention, il est possible d'avoir un nombre de trous 6,7 plus ou moins grand avec un nombre de cordes elastiques egalement plus ou moins grand. In the case of fig. 2 and 4 the elastic cords 9 suspend the bench 4 at each end with 13 strands, in the case of fig. 3 and 5 the elastic cords 9 suspend the bench 4 at each end with 18 strands. The total empty length of the elastic cords 9 does not vary, the 13-strand suspension gives a greater starting height than for the 18-strand suspension. The static elongation of the 13-strand suspension with two people is greater than the static elongation of the 16-strand suspension with one person, therefore the passenger height will be roughly the same after static extension for two people with suspension with 13 strands or a person with 18-strand suspension. By having for each row of holes the two end holes with slot, as indicated at 8 in figs. 5 and 7, it is possible to carry out the suspension at each end of the bench seat 4 either with 13 strands, or with 12 strands, or with it strands, or with 18 strands or with 8 strands. These 5 possibilities, which are not limiting, allow the flexibility of the suspension and its body height, weight and head height, for both or one passenger, with very simple handling. 18 are guide rods which are connected to the seat 4 by the caps there, these rods 18 slide freely in tubes 12 which are integral with the chassis of the vehicle. 13 is the front bumper of the vehicle on which the curved windshield 14 is fixed. 16 is the rear window which is articulated under the roof 15 and is connected to the upper part of the backrest 5 by the articulated shelf 17. The articulations 18,19 and 2 allow the backrest 5 to descend and to rise according to the travel of the suspension of the bench seat 4, this makes it possible to have a rear closure comprising a fixed height roof, a fixed height rear window and a variable height bench seat back. It is obvious that, without changing anything in the character of the invention, it is possible to have a number of holes 6.7 more or less large with a number of elastic cords also more or less large.

Claims (4)

REVENDICATIONS 1) Banquette a suspension variable pour vehicule leser motorise1) Bench with variable suspension for motorized leser vehicle caracterise en ce que le chassis du véhicule comporte a une hauteur characterized in that the chassis of the vehicle has a height appropriee et a une distance appropriee de la colonne de direction appropriate distance from the steering column une poutre appui dossier (2) qui est horizontale et a une longueur a backrest support beam (2) which is horizontal and has a length sensiblement egale a la largeur hors tout du vehicule, que chaque substantially equal to the overall width of the vehicle, that each extremite de cette poutre appui dossier (2) comporte, sensiblement end of this backrest support beam (2) comprises, substantially perpendiculaire a son axe, un tube support de banquette (3) , que perpendicular to its axis, a bench support tube (3), which la banquette (4) avec son dossier (5) qui prend appui,en pouvant the bench seat (4) with its back (5) which is supported, being able to coulisser verticalement, contre la poutre appui dossier (2) comporte slide vertically against the backrest support beam (2) has a chacune de ses extremites une serie de trous (6,7) dont la ligne at each of its ends a series of holes (6,7) whose line qui reunie leurs axes est sensiblement parallele au bord de la partie which joins their axes is substantially parallel to the edge of the part horizontale de la banquette (4), que, a chaque extremite de la horizontal of the bench seat (4), that at each end of the banquette (4), au moins une corde elastique t9), de preference en bench seat (4), at least one elastic cord t9), preferably in caoutchouc genre "Sandoz" est enroulee,en passant dans les trous "Sandoz" type rubber is rolled up, passing through the holes < 6,7) precites,entre l'extremite de la banquette (4) et le tube <6.7) above, between the end of the bench seat (4) and the tube support de banquette (3), et que le nombre de brins de la ou des bench support (3), and the number of strands of the cordes elastiques (9) servant de suspension a la banquette (4) peut elastic cords (9) serving as suspension for the bench seat (4) can etre reduit ou augmente en declanchant ou en enclanchant une ou be reduced or increased by starting or starting one or plusieurs extremites de cordes elastiques C9), munies d'excroissances several ends of elastic cords C9), provided with protuberances ou de crochets, d'un ou de plusieurs trous (7) de la banquette ou des or hooks, one or more holes (7) in the bench seat or tubes support de banquette (3). bench support tubes (3). 2) Banquette a suspension variable pour vehicule leger motorise selon2) Bench with variable suspension for light motorized vehicle according to revendication i caracterisee en ce que au moins l'un des trous (7) claim i characterized in that at least one of the holes (7) pour chaque serie de trous (6ruz comporte une fente (8) dirigee vers for each series of holes (6ruz has a slot (8) directed towards l'exterieur de la banquette (4), cette fente C8) ayant une :larseur  the outside of the bench seat (4), this slot C8) having a: width generalement inferieure au diametre du trou (7), trou (7) ayant une generally less than the diameter of the hole (7), hole (7) having a section conique, la pointe du cone se situant au dessus de la conical section, the point of the cone lying above the banquette (4). bench seat (4). 3) Banquette a suspension variable pour vehicule leger motorise selon3) Bench with variable suspension for light motorized vehicle according to revendications 1 a 2 caracterisee en ce que, a chaque extremite de la claims 1 to 2 characterized in that at each end of the banquette (4) plusieurs cordes elastiques (9) sont placees entre la bench (4) several elastic cords (9) are placed between the banquette (4) et le tube support de banquette (3). bench seat (4) and the bench seat support tube (3). 4) Banquette a suspension variable pour vehicule leger motorise selon4) Variable suspension seat for light motorized vehicle according to revendications 1 a 3 caracterisee en ce que le dossier (5) de la claims 1 to 3 characterized in that the file (5) of the banquette (4) est relie par une tablette articulee (17) a la lunette bench seat (4) is connected by an articulated tablet (17) to the seat arriere (16) du vehicule.  rear (16) of the vehicle.
FR8716382A 1987-11-20 1987-11-20 BENCH WITH VARIABLE SUSPENSION FOR LIGHT MOTOR VEHICLE Expired - Lifetime FR2623450B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8716382A FR2623450B1 (en) 1987-11-20 1987-11-20 BENCH WITH VARIABLE SUSPENSION FOR LIGHT MOTOR VEHICLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8716382A FR2623450B1 (en) 1987-11-20 1987-11-20 BENCH WITH VARIABLE SUSPENSION FOR LIGHT MOTOR VEHICLE

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FR2623450A1 true FR2623450A1 (en) 1989-05-26
FR2623450B1 FR2623450B1 (en) 1990-05-04

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FR8716382A Expired - Lifetime FR2623450B1 (en) 1987-11-20 1987-11-20 BENCH WITH VARIABLE SUSPENSION FOR LIGHT MOTOR VEHICLE

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186963A (en) * 1978-11-01 1980-02-05 Sears Manufacturing Company Upright vehicle seat support
DE3142553A1 (en) * 1980-11-03 1982-08-26 Karl-Gunnar 95600 Överkalix Andersson "DEVICE FOR ELIMINATING VIBRATIONS IN A DRIVER'S SEAT"
EP0104853A2 (en) * 1982-09-23 1984-04-04 Britax (Dynasafe) Limited Seats

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186963A (en) * 1978-11-01 1980-02-05 Sears Manufacturing Company Upright vehicle seat support
DE3142553A1 (en) * 1980-11-03 1982-08-26 Karl-Gunnar 95600 Överkalix Andersson "DEVICE FOR ELIMINATING VIBRATIONS IN A DRIVER'S SEAT"
EP0104853A2 (en) * 1982-09-23 1984-04-04 Britax (Dynasafe) Limited Seats

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