WO2004089686A1 - Siege de vehicule reglable en hauteur - Google Patents

Siege de vehicule reglable en hauteur Download PDF

Info

Publication number
WO2004089686A1
WO2004089686A1 PCT/EP2004/001400 EP2004001400W WO2004089686A1 WO 2004089686 A1 WO2004089686 A1 WO 2004089686A1 EP 2004001400 W EP2004001400 W EP 2004001400W WO 2004089686 A1 WO2004089686 A1 WO 2004089686A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle seat
motor vehicle
crash
designed
piston
Prior art date
Application number
PCT/EP2004/001400
Other languages
German (de)
English (en)
Inventor
Klaus-Dieter Haag
Gerhard Roth
Michael Piesche
Original Assignee
Daimlerchrysler Ag
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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Publication of WO2004089686A1 publication Critical patent/WO2004089686A1/fr

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
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42736—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the whole seat

Definitions

  • the invention relates to a motor vehicle seat, with a seat height adjustment, according to the preamble of claim 1.
  • a motor vehicle seat with a seat height adjustment is known, which is designed to adjust a first part of the motor vehicle seat against a second part of the motor vehicle seat.
  • the first seat part is a seat side part or an element connected to this seat side part and the second seat part is a base plate or an element connected to this base plate, in particular a top rail.
  • the motor vehicle seat has a drive mechanism with a rotatable spindle for height adjustment.
  • a first and a second spindle nut are arranged on the drivable spindle.
  • the first spindle nut is temporarily non-rotatably connected to the first seat part and the second spindle nut is at least temporarily non-rotatably connected to the second seat part, so that turning the spindle leads to an adjustment of at least one spindle nut along the spindle and thus to a change in the seat height.
  • the disadvantage here is that the high inertial forces acting on the vehicle occupants and a belt system securing the vehicle occupants in the event of a front impact, an upward and / or forward force and in the event of a rear impact an upward and / or rearward force on the seat height adjustment exercise which more common- is arranged at a rear end of the motor vehicle seat in the direction of travel.
  • the seat height adjustment is often a weak point of the seat structure in the event of a crash, there is a risk that the seat height adjustment will deform and / or break, causing the vehicle seat and with it the vehicle occupant to move up and / or forward or up and / or after is shifted to the rear, resulting in an increased risk of injury in the head area or injuring the fund’s residents.
  • a vehicle in particular a convertible or a coupe, with a small headroom is known.
  • the vehicle seat is received by a floor element which is movable relative to the vehicle floor and locked to it.
  • the lock is released and a means driving the floor element lowers the vehicle seat downwards through a recess in the floor of the vehicle, which is released by the floor element, and locks the floor element in the lowered position.
  • the present invention is concerned with the problem of specifying an improved embodiment for a motor vehicle seat of the type mentioned at the outset, which offers increased occupant protection and, in particular, which limits deformation movements of the vehicle seat in the event of a crash.
  • the invention is based on the general idea of arranging a crash element between a first and a second part of a motor vehicle seat which, in the event of a crash, causes a relative movement of the first part of the motor vehicle seat. prevents or at least obstructs the second part of the motor vehicle seat, while in normal operation it allows height adjustments of the seat parts.
  • the first part of the motor vehicle seat can be designed as a seat frame and / or as adjustment kinematics and / or as a seat belt buckle
  • the second part of the motor vehicle seat can be designed as an "upper rail", which is preferably adjustable in the longitudinal direction of the vehicle.
  • the associated "lower rail" is included connected to the vehicle.
  • the abrupt deceleration additionally causes an upward and / or forward and / or rearward force on a seat height adjustment, which often represents a weak point in the seat construction, so that there is a risk that the seat height adjustment deforms and / or breaks and as a result, the vehicle seat and with it the vehicle occupant are shifted upward and / or forward or backward, which results in an increased risk of injury in the head region.
  • the crash element according to the invention prevents or at least hinders this movement of the vehicle occupant and thereby contributes to increased driving safety or a reduction in the risk of injury. In normal operation, the crash element is unloaded and allows height adjustment.
  • the crash element can be designed as a clamping device, which is arranged on the first part of the motor vehicle seat and continuously leads through a connecting element, preferably a cable element, fastened to the second part of the motor vehicle seat and which, in the event of a crash, the connecting element, preferably the cable element , jammed.
  • the clamping device essentially consists of a housing and a piston which is adjustably mounted therein and which has a slotted cone at a first end and has a piston head at a second end. Complementary to the slotted cone, a formation is formed on an inner wall of the piston in such a way that, when the cone enters the formation, clamping forces can be activated on the connecting element, preferably on the cable element.
  • the connecting element preferably the cable element
  • the connecting element can be designed as a steel and / or plastic cable, for example fiber-reinforced, or as a metal or non-ferrous metal rod with or without embossing / notches.
  • the clamping device thus consists of components which are simple and inexpensive to manufacture, as a result of which, under certain circumstances, a life-saving safety device for a large number, in particular also smaller motor vehicles, can be offered inexpensively.
  • the simple design of the crash element achieves a high level of robustness and functional reliability.
  • a drive element is provided for actuating the clamping device, which in the event of a crash drives the cone to move into the formation.
  • a pyrotechnic gas generator can be provided as the drive element, for example, which is arranged in the region of the piston head and a recess provided there, which reduces a piston diameter, and which generates a high gas pressure in the recess in the event of a crash and thereby drives the piston or the connecting element or the Pinched rope element.
  • Pyrotechnic drive elements have been tried and tested components of safety devices, such as Airbags, and thus ensure high reliability.
  • the clamping device is pretensioned by a spring element with a defined spring force into a non-clamping position, a friction connection being formed between the cone and / or the piston and the connecting element, preferably the cable element, and wherein when the defined spring force is reached, the Clamping device in a connecting tion element or the rope element clamping clamping position is transferred.
  • the crash element has no function required for normal driving and is only activated in the event of a crash.
  • the impulse-like force input activates the frictional connection located between the cone and / or piston and the connecting element or the cable element, as a result of which the cone moves into the formation which is complementary to the inner wall of the piston, clamps the connecting element, preferably the cable element, and thereby one Relative movement of the first part against the second part of the motor vehicle seat prevented or at least hindered.
  • an inexpensive and easy to produce friction connection between the piston and / and / or cone and the connecting element can be arranged to activate the crash element, whereby the manufacturing costs can be reduced.
  • the crash element can also expediently be designed as a piston-cylinder damper working with a medium, preferably a liquid or a fluid.
  • a medium preferably a liquid or a fluid.
  • Such piston-cylinder dampers are common mass-produced goods and are readily available in almost all sizes and for almost all requirements, and are also particularly low-maintenance.
  • FIG. 1 is a side view of a motor vehicle seat with a crash element according to the invention
  • FIG. 3 shows a cross section as in FIG. 1, but with another crash element
  • FIG. 4 shows a cross section as in FIG. 1, but with a further crash element
  • FIG. 5 shows a cross section as in FIG. 1, but with a further crash element
  • a vertically undamped motor vehicle seat 37 has a first part 1, which can be designed, for example, as a seat frame 4 and / or as adjustment kinematics 5 and / or as a belt buckle 6, and a second part 2, which can be designed as a top rail 7 ,
  • the upper rail 7 is preferably designed to be adjustable in the longitudinal direction of the vehicle in an associated lower rail attached to a vehicle floor.
  • a seat height adjustment 38 is arranged between the first part 1 and the second part 2 of the motor vehicle seat 37 and is designed to adjust the first part 1 against the second part 2 of the motor vehicle seat 37.
  • a crash element 3 is arranged next to the seat height adjustment 38, which is designed so that it is a slow one caused by the seat height adjustment 38 Allows relative movement of the first part 1 against the second part 2, whereas it prevents or at least hinders a rapid relative movement, such as in a crash.
  • the crash element 3 according to the invention can be designed as a clamping device 8.
  • the clamping device 8 has a housing 10 and a piston 11 which is adjustably mounted therein, on which a slotted cone 12 is arranged on a first end 14 and a piston head 15 is arranged on a second end 13.
  • a shape 17 Arranged in an interior of the housing 10 on a piston inner wall 16 is a shape 17 which is complementary to the cone 12 and which causes the cone 12 to retract when the cone 12 is retracted Clamping forces 18 exerts on the connecting element, preferably the cable element 9.
  • the piston head 15 has a recess 19 that reduces a piston diameter, as a result of which a cavity is created between the piston head 15 and the piston inner wall 16.
  • a drive element 20 is provided which drives the piston head 15 in the event of a crash and thus drives the cone 12 to move into the formation 17.
  • the drive element 20 can be designed, for example, as a pyrotechnic gas generator, which generates a high gas pressure in the recess 19 in the event of a crash and thereby drives the piston 11, similar to an ignition process in an internal combustion engine.
  • the clamping device 8 can be biased into a non-clamping position by a spring element 21 with a defined spring force.
  • a friction connection 22 is formed between the cone 12 and / or the piston 11 and the connecting element 9, which in the event of a crash, i.e. in the case of a jerky relative movement of the first part 1 against the second part 2 of the vehicle seat 37, the defined spring force of the spring element 21 is reached or exceeded and thereby the clamping device 8 is brought into a clamping position.
  • the embodiment variant shown in FIG. 2 also allows a slow relative movement of the first part 1 against the second part 2 of the vehicle seat 37, i.e. a slow slipping of the connecting element 9 through the friction connection 22.
  • the crash element 3 can be a component of the seat height adjustments 38.
  • the seat height adjuster 38 has a spindle 27 which is rotatably mounted with respect to the first and the second part 1, 2 of the vehicle seat 37, the spindle 27 with a spindle head 28 in a rotationally fixed manner with the engages second part 2 of the vehicle seat 37 connected receiving part 29.
  • a nut 30 is rotatably connected to the first part 1 of the motor vehicle seat 37 and rotatably connected to an associated external thread of the spindle 27 via an internal thread.
  • a locking device 31 is provided in the area of the spindle head 28, which locks the spindle head 28 against rotation in the receiving part 29 in the event of a crash and thereby prevents the relative movement. or disabled.
  • the locking device 31 can be designed, for example, as a centrifugal lock.
  • the centrifugal lock has at least one locking element 35, which is held in a non-locking position by a spring element 34 up to a predetermined centrifugal force. If the rotation of the spindle 27 reaches a certain speed in the event of a crash, the centrifugal force which acts on the at least one locking element 35 is greater than the spring force retaining the locking element 35, as a result of which this is adjusted in the direction of the centrifugal force and thereby moves into a locking opening 36 and locks the spindle head 28 against further rotation in the receiving part 29.
  • the crash element 3 can be designed as a piston-cylinder damper 23 working with a medium 24, preferably a fluid / liquid.
  • the piston-cylinder damper 23 is also arranged between the first part 1 and the second part 2 of the motor vehicle seat 37 and allows a slow relative movement of the two by a compensating flow of the medium 24 from a first chamber 25 into a second chamber 26 or vice versa Parts against each other, whereas jerky relative movements are transmitted almost undamped.
  • the medium volume between the first chamber 25 and the second chamber 26 is compensated by a corresponding one throttled connection path, for example through a through opening 32 which is arranged in a piston 11.
  • a crash element 3 is arranged which, in the event of a crash, prevents or at least impedes a relative movement of the first part 1 against the second part 2 of the motor vehicle seat 37 and thereby contributes to increased driving safety or a reduction in the risk of injury to the vehicle occupants.
  • the first part 1 can be designed, for example, as a belt buckle 6, whereas the second part 2 can be designed as a top rail 7 of the longitudinal adjustment.
  • the crash element 3 can be designed as a clamping device 8 with a continuously guided connecting element 9, preferably as a cable element, in the event of a crash the connecting element 9, which is part of the crash element 3, is clamped by the clamping device 8.
  • the crash element 3 can also be designed as a piston-cylinder damper 23 working with a medium 24, preferably a fluid / liquid, or as a locking device 31 with a centrifugal force lock integrated into the seat height adjustment 38 working with a rotating drive part.

Abstract

L'invention concerne un siège de véhicule (37) doté d'un réglage en hauteur (38) qui permet de déplacer une première partie (1) du siège (37) contre une deuxième partie (2) du siège (37). Selon l'invention, entre la première et la deuxième partie (1,2) du siège (37) est disposé au moins un absorbeur de chocs (3) qui empêche ou du moins gêne le mouvement relatif de la première partie (1) du siège (37) contre la deuxième (2) du siège (37) en cas de collision.
PCT/EP2004/001400 2003-04-10 2004-02-14 Siege de vehicule reglable en hauteur WO2004089686A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003116341 DE10316341A1 (de) 2003-04-10 2003-04-10 Kraftfahrzeugsitz mit einer Sitzhöhenverstellung
DE10316341.7 2003-04-10

Publications (1)

Publication Number Publication Date
WO2004089686A1 true WO2004089686A1 (fr) 2004-10-21

Family

ID=33103293

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/001400 WO2004089686A1 (fr) 2003-04-10 2004-02-14 Siege de vehicule reglable en hauteur

Country Status (2)

Country Link
DE (1) DE10316341A1 (fr)
WO (1) WO2004089686A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005056869B4 (de) * 2005-11-29 2010-05-27 Isringhausen Gmbh & Co. Kg Sitzrückhaltesystem
DE102007029474A1 (de) * 2007-06-26 2008-02-07 Daimler Ag Kraftfahrzeugsitz mit einer Gurtschlosseinstellung
DE102008015181A1 (de) * 2008-03-20 2009-09-24 Volkswagen Ag Abstützung für einen Fahrzeugsitz
DE102016013964A1 (de) 2016-11-23 2017-05-18 Daimler Ag Autonom betreibbarer Kraftwagen mit öffenbarem Verdeck und höhenverstellbarem Fahrzeugsitz

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346209A1 (fr) * 1988-06-06 1989-12-13 Jean-Paul Darinot Siège de véhicule à absorbeur de chocs
DE4120608A1 (de) * 1991-06-20 1993-01-14 Heinz Peter Sicherheits-systeme fuer einzel-gruppen-sitze in fahrzeugen aller arten
WO1993001950A2 (fr) * 1991-07-19 1993-02-04 Massachusetts Institute Of Technology Siege de securite
DE9215254U1 (fr) * 1992-11-05 1993-06-24 Peter, Heinz, 1000 Berlin, De
DE4405753C1 (de) * 1994-02-23 1995-10-05 Daimler Benz Aerospace Airbus Sicherheitseinrichtung für Sitze
EP0756974A1 (fr) * 1994-06-27 1997-02-05 INDIANA MILLS & MANUFACTURING, INC. Siège et système de retenue pour passager
DE19606605A1 (de) 1996-02-22 1997-08-28 Daimler Benz Ag Fahrzeug
US5730492A (en) * 1996-02-09 1998-03-24 Simula Inc. Load-limiting seat
US6076887A (en) * 1996-02-06 2000-06-20 Autoliv Development Ab Vehicle seat
US6406092B1 (en) * 1998-12-22 2002-06-18 Bertrand Faure Sitztechnik Gmbh & Co. Kg Car seat
US6416126B1 (en) * 1997-09-10 2002-07-09 Autoliv Development Ab Vehicle seat
US6416127B1 (en) * 2000-10-26 2002-07-09 Lear Corporation Oscillating damped energy management device
DE10107695A1 (de) 2001-02-19 2002-09-05 Brose Fahrzeugteile Kraftfahrzeugsitz, insbesondere eine Sitzhöhenverstellung aufweisend

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FR2142097B1 (fr) * 1971-07-03 1973-07-13 Wingard Ltd
SE420797B (sv) * 1974-12-23 1981-11-02 Graenges Essem Ab Lasanordning vid for fordon avsedda sekerhetsselar
DE3001164A1 (de) * 1980-01-15 1981-07-16 Audi Nsu Auto Union Ag, 7107 Neckarsulm Vorrichtung zum verstellen einer sitzlehne
DE3407376A1 (de) * 1984-02-29 1985-11-07 Autoflug Gmbh, 2084 Rellingen Vorrichtung zur verhinderung der vorwaertsverlagerung von angeschnallten personen
DE3738797A1 (de) * 1987-11-14 1989-05-24 Rentrop Hubbert & Wagner Linear verstellbares kraftuebertragungselement mit stufenloser, traegheitssensitiver blockierung
DE4408219C2 (de) * 1994-03-11 2002-12-12 Brose Fahrzeugteile Fahrzeugsitz mit einem in der Höhe verstellbaren Sitzgestell
US5642916A (en) * 1995-08-22 1997-07-01 Alliedsignal Inc. Locking and tensioning for a slidable seat

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0346209A1 (fr) * 1988-06-06 1989-12-13 Jean-Paul Darinot Siège de véhicule à absorbeur de chocs
DE4120608A1 (de) * 1991-06-20 1993-01-14 Heinz Peter Sicherheits-systeme fuer einzel-gruppen-sitze in fahrzeugen aller arten
US5636424A (en) * 1991-07-19 1997-06-10 Massachusetts Institute Of Technology Safety seat
WO1993001950A2 (fr) * 1991-07-19 1993-02-04 Massachusetts Institute Of Technology Siege de securite
DE9215254U1 (fr) * 1992-11-05 1993-06-24 Peter, Heinz, 1000 Berlin, De
DE4405753C1 (de) * 1994-02-23 1995-10-05 Daimler Benz Aerospace Airbus Sicherheitseinrichtung für Sitze
EP0756974A1 (fr) * 1994-06-27 1997-02-05 INDIANA MILLS & MANUFACTURING, INC. Siège et système de retenue pour passager
US6076887A (en) * 1996-02-06 2000-06-20 Autoliv Development Ab Vehicle seat
US5730492A (en) * 1996-02-09 1998-03-24 Simula Inc. Load-limiting seat
DE19606605A1 (de) 1996-02-22 1997-08-28 Daimler Benz Ag Fahrzeug
US6416126B1 (en) * 1997-09-10 2002-07-09 Autoliv Development Ab Vehicle seat
US6406092B1 (en) * 1998-12-22 2002-06-18 Bertrand Faure Sitztechnik Gmbh & Co. Kg Car seat
US6416127B1 (en) * 2000-10-26 2002-07-09 Lear Corporation Oscillating damped energy management device
DE10107695A1 (de) 2001-02-19 2002-09-05 Brose Fahrzeugteile Kraftfahrzeugsitz, insbesondere eine Sitzhöhenverstellung aufweisend

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