WO2001056830A1 - Dossier a rigidite variable pour siege de vehicule - Google Patents

Dossier a rigidite variable pour siege de vehicule Download PDF

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Publication number
WO2001056830A1
WO2001056830A1 PCT/NL2001/000074 NL0100074W WO0156830A1 WO 2001056830 A1 WO2001056830 A1 WO 2001056830A1 NL 0100074 W NL0100074 W NL 0100074W WO 0156830 A1 WO0156830 A1 WO 0156830A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
seat back
fixation
damping
damping means
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.)
Ceased
Application number
PCT/NL2001/000074
Other languages
English (en)
Inventor
Johannes Theodorus Maria Rasenberg
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.)
WHIPLASH PREVENTIE SYSTEMS HOLDING NV
Original Assignee
WHIPLASH PREVENTIE SYSTEMS HOLDING NV
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
Priority claimed from NL1014246A external-priority patent/NL1014246C2/nl
Application filed by WHIPLASH PREVENTIE SYSTEMS HOLDING NV filed Critical WHIPLASH PREVENTIE SYSTEMS HOLDING NV
Priority to AU2001237788A priority Critical patent/AU2001237788A1/en
Publication of WO2001056830A1 publication Critical patent/WO2001056830A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/2222—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable the back-rest having two or more parts
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/23—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by linear actuators, e.g. linear screw mechanisms
    • B60N2/231—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by linear actuators, e.g. linear screw mechanisms by hydraulic actuators
    • 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
    • B60N2/4228—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 rear
    • 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
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42745—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the back-rest
    • 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
    • B60N2/68—Seat frames
    • B60N2/682—Joining means
    • 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
    • B60N2/80—Head-rests
    • B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest

Definitions

  • the invention relates to a seat, particularly for application in a vehicle, provided with a seat part and an upright seat back connected thereto.
  • a vehicle seat is generally known.
  • a problem which occurs in conventional vehicle seats is that they generally do not provide the passengers of a vehicle with sufficient protection in the case of a rear- end collision. In such accidents injury is hereby often caused to the neck and dorsal vertebrae, this being known by the name "whiplash" .
  • Whiplash occurs as a result of high loads on the vertebra and the neck which are a consequence of the great accelerations which the different parts of the body of the passenger undergo at different times during a collision.
  • the load In the case of a collision the load generally travels within several tens of milliseconds from the point of first contact in the construction of the vehicle. In the case of a rear-end collision it takes on average about 20 ms before the force reaches the driver' s seat. From that point in time it takes about another 20 ms before the force acts on the lower body and pelvis of the passenger, and then roughly another 10 to 30 ms before the upper body and the head of the passenger are also loaded. The total duration of the load on the body is then about 150 ms, wherein the highest values occur after 90 and up to 110 ms .
  • the said movements of the different parts of the body are not cushioned in a conventional vehicle seat, or hardly so.
  • a conventional seat the seat back will bend rearward when it is loaded on the underside in the first instance by the pelvis of the passenger, which is the first part of the body to respond to the force of the collision.
  • the seat back and the head support hereby move away from the upper body and the head of the passenger, and space is thus created for making said lurching movements when the force finally also acts on the upper body and head.
  • the acceleration of the head in particular which herein occurs can reach a value of 20 to 30 g, which can result in an elongation of the cervical vertebrae of 2 to 15 cm. Such an elongation can be fatal, and will in any case result in permanent injury.
  • the invention therefore has for its object to provide a vehicle seat which provides more protection against the occurrence of whiplash in the case of a rear- end collision. According to the invention this is achieved in such a seat by means for limiting a jerking movement of the seat back under load. By preventing the seat back from jerking further, no great distances occur between the upper body and head of the passenger on the one hand and the seat back with head support on the other, and great accelerations are thus avoided. Particularly the lurching movement of the body is thus limited or even wholly obviated.
  • the jerk limiting means are formed in that the seat back has a rigidity variable in height direction. Differences in the load on the seat back owing to the user being pushed with force thereagainst can hereby be compensated, whereby the deformation of the seat back precisely follows the loads on the body of the user.
  • the seat back preferably comprises at least two parts, and a part in the vicinity of the seat part is less rigid than a part further removed from the seat part.
  • the less rigid part is advantageously movable relative to the seat part.
  • the initial load of the pelvis sliding backward can thus be cushioned by co-displacement o of the part of the seat back in the vicinity of the seat part.
  • a structurally simple and properly operating seat is herein obtained when the less rigid part is connected pivotally to the rest of the seat back.
  • the jerk s limiting means are formed in that the seat back is pivotable on an axis located at a distance above the seat part. Not only is the distance between the seat back and the upper body of the passenger thus prevented from increasing, but this distance is in fact even reduced, o since the part of the seat back above the pivot axis moves toward the passenger. In this manner the successive movements of the different body parts can advantageously also be used to damp each other.
  • the seat is preferably further provided with means for damping the (pivoting) movement of the less rigid o part or the pivotable seat back, thereby preventing too great a load being exerted on the body of the user when the pivotable part or the pivotable seat back reaches the end of its movement.
  • damping means into which the fixation means can advantageously be integrated, can for 5 instance comprise a granular or particulate material .
  • a suitable embodiment of such damping means on the basis of a particulate material is described in the earlier, as yet unpublished Netherlands patent application 1016968 of applicant .
  • fixation and/or damping means are however preferably of pneumatic or hydraulic character. These fixation and/or damping means are herein advantageously adjustable as a function of an anticipated load. By adjusting the damping on the basis of the anticipated mass inertia force of the user, the same optimal damping can in principle be realized for any user. This prevents for instance lighter passengers, generally women, undergoing an insufficiently damped movement and eventually being subjected to greater loads than heavier users .
  • the seat then preferably has means connected to the fixation and/or damping means for measuring a mass inertia force exerted thereon by the user and adjusting the fixation and/or damping means on the basis thereof.
  • the required damping does not therefore have to be adjusted manually, but can be deduced automatically.
  • the measuring means are herein adapted to measure a mass generating the mass inertia force in the unloaded state, and comprise for instance at least one pressure sensor.
  • the fixation and/or damping means preferably comprise at least one housing which is at least partially filled with a fluid and which is connected to a supply and a discharge for the fluid, and said means can preferably be adjusted by adjusting the resistance in the fluid supply and/or discharge.
  • a seat is thus obtained, the damping of which is very easy to regulate.
  • the mass-measuring means can otherwise be advantageously connected to the seat part of the seat .
  • the mass of the passenger can thus be measured in simple manner during normal use of the seat and be used to determine the anticipated mass inertia force in the case of a collision at a determined acceleration. So as not to be dependent on failure of the fixation means to enable initiation of the damping action of the seat, this latter is preferably provided with controllable means for releasing the fixation means under load.
  • the fixation means preferably comprise a valve blocking the fluid supply and/or discharge, and the release means are adapted to open the valve in the case of loading.
  • the release means can herein comprise at least one shock- sensitive switch, whereby a very rapid reaction is achieved.
  • the invention also relates to a seat back and to fixation and/or damping means for application in a seat as described above.
  • the invention is now elucidated on the basis of four embodiments, wherein reference is made to the annexed drawing, in which:
  • Fig. 1 is a schematic perspective view of a vehicle seat according to a first embodiment of the invention
  • Fig. 2A to 2D are schematic cross-sections through the seat of fig. 1 at rest and during different phases of a rear-end collision
  • Fig. 3 is a schematic perspective detail view of the seat back according to a second embodiment of the invention.
  • Fig. 4 is a schematic cross-section through a third embodiment of the seat back
  • Fig. 5 is a partly cut-away perspective view of a seat with a seat back according to a fourth embodiment
  • Fig. 6 and 7 show cross-sections through a damper applied in the embodiment according to fig. 5 in its rest position and its loaded position
  • Fig. 8A-C show in side view a fifth embodiment of the seat according to the invention during different stages of the movement in the case of a rearward directed load by a mass inertia force
  • Fig. 9 shows a circuit diagram of the damping means in the seat of fig. 8, and
  • Fig. 10 shows a circuit diagram of alternative damping means for use in such a seat .
  • a seat 1 (fig. 1) is formed by a seat part 2, a seat back 3 pivotally connected thereto and a head support 4 mounted on the upper side of the seat back.
  • Seat 1 is mounted on the floor of a vehicle for sliding along rails 5.
  • the seat 1 faces toward the direction of travel of the vehicle.
  • seat 1 is adapted to limit further jerking of seat back 3 as much as possible. In the embodiment shown here this is achieved in that the rigidity of seat back 3 is not constant over the whole height thereof.
  • a local load resulting from a first contact of a part of the body of user 6 with the seat back can be cushioned by a local deformation of that part of seat back 3 , without the remaining part of the seat back already being deformed or displaced.
  • the seat back is embodied in two parts 7 and 8, which are pivotally connected to each other by means of a lying hinge 9.
  • the part 7 located in the vicinity of seat part 2 is herein only connected to the remaining part 8, while this part 8 of seat back 3 is connected to seat part 2 in conventional manner for pivoting on a lying axis 16.
  • Each of these parts conventionally comprises a frame 10 respectively 11 to which a cushion body 12 respectively 13 is attached.
  • Frames 10, 11 and cushions 12, 13 are covered with a suitable fabric or type of leather.
  • Materials suitable for cushion bodies 12, 13 are conventional elastic foam plastics as well as inherently damping plastic materials.
  • Damping means 14 are arranged between the two parts 7, 8. These damping means 14, which are here formed by a granular or particulate material, hold the pivotable part 7 in the position as shown in fig. 2A during normal use, and thus also form the fixation means.
  • the action of the seat back 3 in the case of a rear- end collision is as follows. During the collision the seat 1 with user 6 thereon is accelerated in forward direction later than the surrounding construction of the vehicle as a result of the mass inertia. This delay generally amounts to about 20 ms, calculated from the start of the collision. Relative to the vehicle the seat 1 and user 6 are thus as it were accelerated in the opposite direction. This acceleration does not herein take place at the same moment at each point of seat 1 and the body of user 6.
  • the seat part 2 of the seat will thus react first, whereby again about 20 ms later the lower body 15 of user 6 is also accelerated and pressed against the movable lower part 7 of seat back 3. This part 7 will hereby pivot rearward round axis 9 relative to the remaining part 8 of the seat back, wherein damping material 14 is compressed (fig. 2B) .
  • the remaining part 8 of seat back 3 herein remains in its position for the time being.
  • the part 7 with lesser rigidity could also be movable in other manner. 5
  • This part 7 could for instance be slidable substantially transversely of the plane of seat back 3 (fig. 3) .
  • the damping means 14 and fixation means could herein be formed by a number of combined spring/damper units 18 arranged spread over part 7. o
  • the part 7 with lesser rigidity does not necessarily have to be movable relative to the rest of seat back 3. It is also conceivable for the cushion body 12 of this part 7 to simply take a less rigid form than cushion 13 of the remaining part 8 of seat back 3 (fig. 4) .
  • the chosen degree of filling of cushion 12 can be slightly lower than that of cushion 13.
  • the degree of filling must however remain so high herein that the difference in rigidity is not perceptible in o normal use, but only becomes noticeable at an extremely high load in the case of a rear-end collision.
  • seat 1 which is recommended at this moment, not only the bottom part 7 but also the whole seat back 3 take a pivotal form.
  • the frame 21 of seat back 3 is connected by means of bearings 19 to a fixed frame part 20, which is mounted (optionally adjustably) on frame 22 of seat part 2 (fig. 5) .
  • Bearings 19 are once again arranged at roughly the same height as hinge 9 in the embodiment of fig. 1 and 2, o i.e. roughly at the position of the lower thoracic and upper lumbar vertebrae of the user, so that the lower part 7 of the seat back is again movable in the same manner.
  • the significant difference is however that in this embodiment there is not only ensured that the upper 5 part 8 of seat back 3 does not jerk rearward, but that this part 8 is even moved actively forward.
  • means 23 are also present for fixing the seat back 3 into a neutral position in normal use, in addition to means 24 for damping the pivoting movement of the seat back.
  • Fixation means 23 and damping means 24 are combined in a spring/damper combination 25, which is arranged between a bottom end of pivotable frame 5 21 and fixed frame 20.
  • Spring/damper combination 25 here comprises a pneumatic damper formed by a cylinder 26 which is attached to fixed frame 20 and in which a piston 27 is movable, wherein piston 27 is urged to its neutral position by means of a fixation spring 28.
  • the free end o 29 of piston 27 is received in a slot 30 in a connecting block 31 fixed to frame 21.
  • Cylinder 26 is almost completely open at one end in order to ensure a rapid outward stroke of piston 27 and thereby a rapid reaction of seat back 3.
  • the outward s stroke is otherwise bounded by two stops 34, 35 in and outside spring/damper combination 25.
  • the cylinder 26 is provided with a number of calibrated openings 32 which are closed by non-return valves 33. These valves 33 do not close the openings o completely, so that air can also be pressed out of cylinder 26 during the return stroke of piston 27, be it that the resistance is then considerably higher, whereby this return movement is well damped.
  • the seat back 3 is likewise o provided with two different cushion bodies 12, 13 with varying rigidity.
  • the rigidity of the lower cushion body 12 is herein greater than that of the upper cushion body 13.
  • seat 101 In yet another embodiment of the seat 101 according to the invention (fig. 8) , not only is seat back 103 pivotable relative to the frame 120 connected to seat part frame 122, but the head support 104 is in turn also pivotable via a hinge 139 on the upper side of seat back 103.
  • the underside of head support 104 is connected to the upper part of the upright part 120 of the fixed frame by means of a bounding element 140, for instance a cable, whereby the movements of head support 104 are bounded.
  • the pivotable seat back 103 is provided on its underside with an extension 131.
  • This extension 131 is connected on one side to the fixed seat part frame 122 via a breaking pin 123, whereby the pivotable seat back 104 is fixed during normal use.
  • the extension 131 is connected to damping means 124, which are in turn likewise connected to the fixed seat part frame 122.
  • the damping means 124 comprise a piston-cylinder combination, the cylinder 126 of which is pivotally connected with one end 135 to the seat part frame 122, while the free end 137 of piston 127 is pivotally connected to extension 131.
  • damping means 124 The resistance force which is exerted by damping means 124 to absorb a mass inertia force is adjustable according to the invention as a function of this force of inertia.
  • damping means 124 Connected for this purpose to damping means 124 are means 118 for measuring the mass inertia force and adjusting damping means 124 on the basis thereof. These measuring means can for instance be adapted to measure the weight G of the person sitting down on seat 101, since this weight is of course directly linked to the mass inertia force at a determined acceleration.
  • the measuring means 118 are of pneumatic nature, and comprise a pneumatic pressure sensor 151 which is arranged in seat part 102 and which is connected over a line 152 having therein a controllable valve 153 to a control input 154 of an adjustable throttle valve 155.
  • the valve 153 is connected controllably to ignition lock 169 of the vehicle in which seat 101 is mounted, for the purpose of determining and then storing the weight of a 5 user at the start .
  • Adjustable throttle valve 155 is received in a line 156 which leads to one side 157 of cylinder 126. On the other side 158 the cylinder 126 is connected to a second line 159. Both lines 158, 159 are provided on their free o end with inlet and outlet combinations 161, 162, which each comprise a relatively large inlet opening 163 closable by a return valve 164, and an adjustable calibrated outlet opening 132. The inlet and outlet combinations 161, 162 are also further provided with s filters (not shown here) , whereby dirtying of the damping means 124 is prevented and which also function as sound dampers .
  • the adjustable throttle valve 155 also has, in addition to the actual throttle o 166, a bypass line 167 having therein a non-return valve 168.
  • the throttle 166 influences the resistance force of the piston-cylinder combination in only one stroke direction of piston 127.
  • Bypass line 167 can of course be omitted when it is desirable to 5 influence the movement of piston 127 in both directions.
  • valve 153 is then moved to its open position by ignition lock 169, whereby the pressure of sensor 151 becomes perceptible in the whole 5 line 152, and throttle valve 155 is thus adjusted.
  • ignition lock 169 closes valve 153, whereby the control pressure in line 152 and thereby the adjustment of throttle valve 155 is thus stored during driving.
  • the indrawn air 5 flows through the relatively large inlet opening 164 and through valve 168 into bypass line 167, while the driven- out air escapes through the calibrated outlet opening 132.
  • this opening is herein adjusted such that the outward stroke of the piston can o take place in about 20 ms . The movement of the pelvis is thus damped.
  • the upper body (after about 10 ms) and the head (after about 30 ms) are also set into motion and strike s against seat back 103 and head support 104 of seat 101.
  • a rearward directed load Fr respectively Fh is herein exerted on these parts.
  • these loads are counteracted by the forward directed rotational force -Fb of the part of seat back 103 located above the pivot o axis, whereby the movement of the upper body is therefore in fact damped by that of the pelvis .
  • both the head support 104 and the lower part of seat back 103 are again pivoted rearward on 5 their pivot axes 139 respectively 119 (fig. 8C) .
  • the rearward pivoting movement of head support 104 is once again bounded by bounding element 140, thereby preventing the head of the user swinging backward, which could result in severe injury.
  • the rearward pivoting movement o of seat back 103 is now damped by damping means 124.
  • the measuring means 218 are electrically connected to damping means 224.
  • Measuring means 218 once again comprise a pressure sensor 251 in the form of a membrane, which is connected to a pressure difference meter 273.
  • This pressure difference meter 273 is connected to a central processing unit 274 with a memory and a control block 275 for an adjusting motor 276.
  • Central processing unit 274 is permanently powered, for instance by a battery 277 of the vehicle 271 in which the seat is arranged.
  • Adjusting motor 276 is connected to the adjustable throttle 266 of throttle valve 255.
  • damping cylinders 226 are present, each comprising a piston 227 with continuous rod. Both piston rods are connected to the movable part of seat back 203. Both cylinders 226 form a closed system, with combined supply and discharge lines 256, 259 for the fluid present therein.
  • a controllable blocking valve 223 whereby the flow of fluid through lines 256, 259 is prevented under normal conditions, and the movable part of seat back 203 is thus fixed.
  • This blocking valve 223 is embodied as an electromagnetic valve loaded by a spring 278, and is connected to a circuit 270 which extends from front to rear through vehicle 271. Shock-sensitive switches 272 are arranged in this circuit 270 on the front and rear side of vehicle 271.
  • Central processing unit 274 is adapted to carry out a zero value measurement or taring when a door of vehicle 271 is opened.
  • this taring the pressure on membrane 251 is measured and stored in the memory of central processing unit 274.
  • a new measurement is performed. This preferably takes place as soon as vehicle 271 begins to move, since it is then in any case certain that the passenger is sitting wholly in the seat, and a correct measurement can thus be performed.
  • Sensors in the drive line can for instance be used for this purpose.
  • the difference between the two measured values of the pressure forms a measure for the weight of the passenger, which can be used to adjust the damping force of cylinders 226, by further opening or closing throttle valve 255.
  • the seat back could thus consist of more than two separate parts, whereby the progression of the displacement of the body of the user could be followed even more precisely.
  • the position of the hinge connection between the two parts could be chosen at a different height than is shown here.
  • a sliding movement along a curved path could also be envisaged, whereby a part of the seat back still moves rearward and another part thereof moves forward .
  • the pressure sensor (s) could be arranged at positions other than in the seat part, for instance in the frame of the seat or even under the seat, in the seat rail or vehicle base, while it is also conceivable for a user to adjust the damping by entering his weight. It is even not inconceivable for a separate damper to be wholly omitted, and to suffice with the mutual damping of the different successive movements of the body parts.

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

Abstract

L'invention concerne un siège de véhicule protégeant un passager contre les conséquences d'une collision arrière, en particulier contre le coup de fouet cervical. Ce siège pour véhicule présente une partie de siège (2), un dossier vertical (3) relié à cette dernière ainsi que des moyens destinés à limiter un mouvement d'à-coup du dossier (3) soumis à une charge. Ces moyens de limitation d'à-coup peuvent être formés de manière que le dossier (3) présente une rigidité variable dans le sens de la hauteur. La rigidité du dossier (3) au voisinage de la partie du siège (2) est ici inférieure par rapport à un peu plus loin de la partie de siège (2). La partie moins rigide peut être mobile, par exemple pivotante par rapport à la partie pivotante, par rapport à la partie de siège (3). Les moyens de limitation d'à-coup peuvent également être formés de manière que le dossier soit pivotant sur un axe situé à une certaine distance au-dessus de la partie de siège (2). Dans les deux cas, des moyens peuvent être prévus pour fixer les parties pivotantes dans leur position de repos. On peut également prévoir des moyens d'amortissement du mouvement de ces parties. Ces moyens de fixation et/ou d'amortissement peuvent être réglables, de manière que le degré d'amortissement puisse être adapté à la masse de l'utilisateur. L'invention concerne également un dossier ainsi que des moyens de fixation et/ou d'amortissement permettant une application dans un siège tel que décrit ci-dessus.
PCT/NL2001/000074 2000-02-01 2001-02-01 Dossier a rigidite variable pour siege de vehicule Ceased WO2001056830A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001237788A AU2001237788A1 (en) 2000-02-01 2001-02-01 Seat back with variable rigidity for vehicle seat

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL1014246A NL1014246C2 (nl) 2000-02-01 2000-02-01 Rugleuning met variabele stijfheid voor voertuigstoel.
NL1014246 2000-02-01
NL1016560 2000-11-08
NL1016560A NL1016560C1 (nl) 2000-02-01 2000-11-08 Rugleuning met variabele stijfheid voor voertuigstoel.

Publications (1)

Publication Number Publication Date
WO2001056830A1 true WO2001056830A1 (fr) 2001-08-09

Family

ID=26643127

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2001/000074 Ceased WO2001056830A1 (fr) 2000-02-01 2001-02-01 Dossier a rigidite variable pour siege de vehicule

Country Status (3)

Country Link
AU (1) AU2001237788A1 (fr)
NL (1) NL1016560C1 (fr)
WO (1) WO2001056830A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1019869C2 (nl) * 2001-05-11 2002-11-12 Whiplash Preventie Systems Hol Pyrotechnische bedieningsinrichting en daarmee uitgeruste stoel, alsmede daarin toe te passen dempingsorgaan.
WO2002085664A3 (fr) * 2001-04-25 2003-01-03 Whiplash Preventie Systems Hol Siege a dossier mobile sur l'assise et dispositif mecanique a cet effet
EP1612093A1 (fr) * 2004-06-29 2006-01-04 Ford Global Technologies, LLC Agencement de sièges de véhicules
DE202004014363U1 (de) * 2004-09-10 2006-01-19 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Kraftfahrzeugsitz
DE102005007428A1 (de) * 2005-02-18 2006-08-31 Volkswagen Ag Fahrzeugsitz für ein Fahrzeug, insbesondere für ein Kraftfahrzeug
WO2008036005A1 (fr) * 2006-09-19 2008-03-27 Autoliv Development Ab Système de repose-tête pour siège de véhicule
DE102008011246A1 (de) * 2008-02-22 2009-09-03 Recaro Gmbh & Co. Kg Fahrzeugsitz, insbesondere Kraftfahrzeugsitz
FR2955063A1 (fr) * 2010-01-08 2011-07-15 Peugeot Citroen Automobiles Sa Siege de vehicule integrant un amortisseur de choc
WO2014000892A1 (fr) * 2012-06-29 2014-01-03 Isringhausen Gmbh & Co. Kg Siège de véhicule présentant un réglage d'inclinaison de dossier ainsi qu'une adaptation aux épaules
CN104494483A (zh) * 2014-12-16 2015-04-08 东北大学 一种能够防止挥鞭伤的车辆座椅
RU2620145C1 (ru) * 2015-12-08 2017-05-23 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" Адаптивное транспортное кресло с активными спинкой и подголовником
EP3381805A1 (fr) * 2017-03-31 2018-10-03 Acro Aircraft Seating Limited Dispositif d'absorption d'énergie
CN110789554A (zh) * 2017-11-06 2020-02-14 北京交通大学 具有铰链解锁机构的安全座椅
US20250042552A1 (en) * 2023-07-31 2025-02-06 Textron Aviation, Inc. Electronically Actuated Seat Recline Release
US12534002B2 (en) 2021-07-16 2026-01-27 Bayerische Motoren Werke Aktiengesellschaft Vehicle seat with a vibration-absorber

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NL1018059C2 (nl) * 2001-05-11 2002-11-12 Whiplash Preventie Systems Hol Stoel met onder belasting beweegbare rugleuning.

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GB2283163A (en) * 1993-10-26 1995-05-03 Autoliv Dev "Improvements in or relating to a vehicle seat"
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WO2002085664A3 (fr) * 2001-04-25 2003-01-03 Whiplash Preventie Systems Hol Siege a dossier mobile sur l'assise et dispositif mecanique a cet effet
NL1019869C2 (nl) * 2001-05-11 2002-11-12 Whiplash Preventie Systems Hol Pyrotechnische bedieningsinrichting en daarmee uitgeruste stoel, alsmede daarin toe te passen dempingsorgaan.
EP1612093A1 (fr) * 2004-06-29 2006-01-04 Ford Global Technologies, LLC Agencement de sièges de véhicules
DE202004014363U1 (de) * 2004-09-10 2006-01-19 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Kraftfahrzeugsitz
DE102005007428A1 (de) * 2005-02-18 2006-08-31 Volkswagen Ag Fahrzeugsitz für ein Fahrzeug, insbesondere für ein Kraftfahrzeug
WO2008036005A1 (fr) * 2006-09-19 2008-03-27 Autoliv Development Ab Système de repose-tête pour siège de véhicule
DE102008011246A1 (de) * 2008-02-22 2009-09-03 Recaro Gmbh & Co. Kg Fahrzeugsitz, insbesondere Kraftfahrzeugsitz
FR2955063A1 (fr) * 2010-01-08 2011-07-15 Peugeot Citroen Automobiles Sa Siege de vehicule integrant un amortisseur de choc
CN104411539B (zh) * 2012-06-29 2016-09-07 伊思灵豪森有限责任公司 具有靠背倾斜设置以及肩部调整的汽车座椅
CN104411539A (zh) * 2012-06-29 2015-03-11 伊思灵豪森有限责任公司 具有靠背倾斜设置以及肩部调整的汽车座椅
US9340127B2 (en) 2012-06-29 2016-05-17 Isringhausen Gmbh & Co. Kg Vehicle seat with backrest tilt setting and shoulder adjustment
WO2014000892A1 (fr) * 2012-06-29 2014-01-03 Isringhausen Gmbh & Co. Kg Siège de véhicule présentant un réglage d'inclinaison de dossier ainsi qu'une adaptation aux épaules
RU2630879C2 (ru) * 2012-06-29 2017-09-13 Исрингхаузен Гмбх Энд Ко. Кг Сиденье транспортного средства с регулировкой положения наклона спинки, а также подгонкой под плечи
CN104494483A (zh) * 2014-12-16 2015-04-08 东北大学 一种能够防止挥鞭伤的车辆座椅
RU2620145C1 (ru) * 2015-12-08 2017-05-23 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" Адаптивное транспортное кресло с активными спинкой и подголовником
EP3381805A1 (fr) * 2017-03-31 2018-10-03 Acro Aircraft Seating Limited Dispositif d'absorption d'énergie
US20180283483A1 (en) * 2017-03-31 2018-10-04 Acro Aircraft Seating Limited Energy absorbing device
CN108688815A (zh) * 2017-03-31 2018-10-23 埃克罗航空器座椅有限公司 能量吸收装置
GB2561548B (en) * 2017-03-31 2019-07-17 Acro Aircraft Seating Ltd Energy absorbing device
US10858109B2 (en) 2017-03-31 2020-12-08 Acro Aircraft Seating Limited Energy absorbing device
CN108688815B (zh) * 2017-03-31 2023-03-31 埃克罗航空器座椅有限公司 能量吸收装置
CN110789554A (zh) * 2017-11-06 2020-02-14 北京交通大学 具有铰链解锁机构的安全座椅
US12534002B2 (en) 2021-07-16 2026-01-27 Bayerische Motoren Werke Aktiengesellschaft Vehicle seat with a vibration-absorber
US20250042552A1 (en) * 2023-07-31 2025-02-06 Textron Aviation, Inc. Electronically Actuated Seat Recline Release

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