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WO2004078516A1 - Device for displacing seat elements - Google Patents

Device for displacing seat elements Download PDF

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Publication number
WO2004078516A1
WO2004078516A1 PCT/DE2003/003074 DE0303074W WO2004078516A1 WO 2004078516 A1 WO2004078516 A1 WO 2004078516A1 DE 0303074 W DE0303074 W DE 0303074W WO 2004078516 A1 WO2004078516 A1 WO 2004078516A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
load torque
torque lock
electric motor
gear unit
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/DE2003/003074
Other languages
German (de)
French (fr)
Inventor
Manfred Winter
Willi Schmidt
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2004078516A1 publication Critical patent/WO2004078516A1/en
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
    • B60N2/225—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 cycloidal or planetary mechanisms
    • B60N2/2254—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 cycloidal or planetary mechanisms provided with braking 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/168—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable and provided with braking 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
    • B60N2/02—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
    • B60N2/2227—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 and provided with braking 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
    • B60N2/02—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
    • B60N2/2231—Worm and worm gear articulations
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2/933—Positioning and locking mechanisms rotatable
    • B60N2/938—Positioning and locking mechanisms rotatable and provided with braking systems

Definitions

  • the invention relates to a device for adjusting seat parts with at least two seat elements which are arranged such that they can move relative to one another.
  • G 9116485.0 discloses a device for adapting the course of a backrest in a motor vehicle, in which parts of the backrest are adjusted relative to one another about an axis by means of an electric motor-driven actuator.
  • the actuator is arranged on one of the two side bolsters of the backrest, auxiliary gears being driven in the two side bolsters via a shaft.
  • Such a connecting shaft of the two gears in the opposite side bolsters requires installation space in the area of the backrest cushion, as a result of which the achievable seating comfort is limited due to a limited suspension option.
  • the manufacturing effort for two corresponding gears and the connecting shaft is quite high in such an embodiment.
  • the device according to the invention with the features of independent claim 1 has the advantage that the self-locking and the minimization of the backlash of the transmission as well as the absorption of the relatively high torques in the event of a rear-end collision do not have to be absorbed directly by the transmission, but rather by a load torque lock that the transmission is connected downstream. For this reason, there is no need for a second gear in the opposite side cheek of the seat part be, especially if the frame of the seat part is designed accordingly more stable.
  • the gearbox only serves to transmit the adjustment forces, so that the elimination of the second gearbox and the connecting shaft and a synchronization device of the two side cheeks greatly reduce both the number of components and the assembly effort.
  • the omission of additional components results in advantages in terms of installation space in the seat parts, which, for example, can increase their suspension comfort.
  • the load torque lock forms a common structural unit with the gearbox and with the electric motor, since such a compact unit can be easily installed in the fittings of the seat parts. If this unit has the shape of a cylinder with a diameter of ⁇ 100 mm, for example, it can be installed directly in the fittings of the seat part as an alternative to a manually operated transmission.
  • the relatively small design of the transmission and the electric motor is made possible by the fact that the high crash moments that occur in a crash are derived via the load torque lock, so that the structural unit only has to be designed for the much lower adjustment torques of normal operation.
  • the structural unit only has to be designed for the much lower adjustment torques of normal operation.
  • a particularly preferred embodiment of a drive is an electrically commutated EC motor, which is particularly inexpensive to produce in a compact cylindrical shape. It does not matter that the EC motor has no self-locking, because the self-locking can be realized by the downstream integrated load torque lock.
  • the control of the electric motor by means of pulse width modulation enables a large number of comfort functions for seat adjustment, such as a reduction in the adjustment noise and / or a variable adjustment speed.
  • the assembly of the electric motor transmission and the load torque lock is arranged on one of two side bolsters of a backrest, which can be tilted relative to a further seat element. Since very high torques act on the transmission due to the large lifting effect of the backrest in conjunction with the body weight of a vehicle, the absorption of these high moments by the integrated load torque lock is particularly advantageous.
  • the backrest or other seat elements can be adjusted very quickly to a predetermined position by means of an accelerated adjustment process, which is optimized for optimal occupant protection in the event of a crash ,
  • such an acceleration of the adjustment of the backrest can be used to make it easier for passengers in the rear to get in or out, in which the corresponding seat parts are moved to a predefined position at high speed.
  • the drive unit includes an anti-trap device, in particular when running at high speed, in which the trapping of a passenger or an object on the front or rear seat is effectively prevented.
  • FIG. 1 shows a device according to the invention for adjusting seat parts
  • FIG. 2 shows a section through a common structural unit of transmission and load torque lock according to 11-11
  • FIGS. 3 and 4 show two sections.
  • FIGS. 5 and 6 show two sections through a further structural unit with an integrated EC motor.
  • Fig. 1 shows a vehicle seat (10) with a first seat element (12) and a second seat element (14) which is designed as a backrest.
  • the seat elements (12, 14) each have two opposite side cheeks (16, 18).
  • a fitting (20) and a fitting (22) are fastened to the seat element (12) on one side cheek (16) and are connected to one another via a joint (24), so that the two seat elements (12 and 14) can be rotated against each other.
  • a gear unit (26) with an integrated load torque lock (28), which together form a structural unit 29, is arranged in the joint (24) on a side wall (16, 18).
  • the gear unit (26) is driven by an electric motor (30), which in this exemplary embodiment is designed as a DC motor, which is operatively connected to a worm wheel (36) of the gear unit (26) via a worm (34) formed on an armature shaft 32 ,
  • the worm wheel (36) is rotatably mounted on a shaft (38) and drives an eccentric (40) which is also rotatably mounted on the shaft (38).
  • An eccentric wheel (42) is arranged on the eccentric (40) and has two external toothings (44) and (46) with a different number of teeth.
  • the first external toothing (44) behaves on an internal toothing (48) of a first gearwheel (50) which is firmly connected to the fitting (20) of the first seat element (12).
  • the second external toothing 46 interacts with an internal toothing (52) of a second gear wheel (54) with axial formations (56) which engage in recesses (58) in two brake shoes (60 of the load torque lock (28).
  • the brake shoes (60) are in turn via one Half-shaft 64 is connected to the fitting (22) of the second seat element (14), so that by means of a reduction according to the different number of teeth of the external gears (44) and (46) Rotation of the two fittings (20) and (22) with the respective seat elements (12 and 14) is generated.
  • the second gear 54 is supported axially with respect to the first gear 50 and radially via a disk 68 with respect to the shaft 38.
  • the sleeve-shaped half-shaft 64 is also mounted on the shaft 38 and transmits the drive torque and the brake shoes 60 to the fitting 22.
  • the shaft 38 is designed as a screw which penetrates a housing 70 of the structural unit 29 and axially secures the gear unit 26 and the loads 28 by means of a nut 72 and a thrust washer 74.
  • FIG. 5 A section through the load torque lock according to VV is shown in FIG. 5, elements (62) are arranged between the brake shoes (60) which, when the drive acts on the force, cause the brake shoes (60) to jam with respect to the fitting (20) with the first gear ( 59 prevents, however, forces act from the seat part (14) via the fitting 22 onto the half-shaft (64), so the brake shoes (60) jam with respect to the fitting (20) or the gearwheel (50), thereby directly affecting the seat part 14 acting forces are absorbed without loading the toothing of the gear (44), 46, 48, 52). In this way, an effective self-locking of the transmission is guaranteed regardless of the power transmission of the electric motor (30).
  • FIG. 3 and 4 show a further exemplary embodiment in which the gear unit 26 is designed in accordance with FIG. 2 and is likewise driven via a worm gear 34, 36.
  • the first gear 50 is connected to the housing 70, which in turn is attached to the fitting 20 of the first seat part 12.
  • a driver 76 is arranged on the second gear wheel 50, which in turn engages with axial formations 56 in recess 58 of a brake disk 78.
  • the brake disc 78 has brake shoes 60 which are connected to the fitting 22 of the seat part 14 and, when a torque acts from the seat part 14 on the load torque lock 28, a rotation between the brake shoes 60 (with the fitting 22) and the housing 70 (with the fitting 20) prevent.
  • FIGS. 5 and 6 A further exemplary embodiment is shown in FIGS. 5 and 6, in which the load torque lock 28 is designed according to the same principle as in FIG. 2.
  • the gearwheel 50 is connected to the fitting 20 via the housing 70, the gearwheel 54 engages via axial formations 56 in the brake shoes 60, which are directly connected to the fitting 22 via the half shaft 64.
  • the electric motor 30 is designed here as a brushless EC motor, which is completely integrated in the housing 70 of the common structural unit 29 of the transmission unit 26 and the load torque lock 28.
  • An armature 84 is rotatably arranged on the shaft 38 within field coils 86, the armature 84 being simultaneously designed as a planet carrier 88 for at least 1 set of planet gears 90 with the toothings 44 and 46.
  • the planet gears 90 are rotatably mounted in the armature 84 and roll on the internal teeth 84 and 52 of the gears 50 and 54, which are each connected to the fittings 20 and 22.
  • a reduction ratio of the EC motor 30 is determined by a difference in the teeth of the two toothings 44, 46, so that the two fittings 20 and 22 twist against each other accordingly.
  • the EC motor 30 with the gear unit 26 has no self-locking, the elimination of the play and the absorption of moments which are introduced to the joint 24 via the seat part 14, in particular a seat back, are completely eliminated by the load torque
  • Such an adjusting device with an EC motor 30 integrated into the cylindrical housing 70 is so compact that it can be installed directly as an alternative for manual seat back adjustment.
  • the assembly 29 has, for example, a diameter 92 of 70 to 100 mm and a length 94 of 50 to 80 mm. Since the load torque lock 28 can absorb very high forces even when a rear-end collision occurs, it is sufficient if such a structural unit 29 is installed only on one side of the seat elements 12 and 14. On the opposite side of the seat parts 12 and 14, only a joint 24 without a gear unit 26 is then arranged. This also eliminates the need for a connecting shaft between the two side cheeks (20, 22), but the frame of the seat parts 12 and 14 can be made correspondingly more stable.
  • the motor 30 is controlled by means of a pulse width modulation 95, which is arranged in a control unit 96.
  • the control unit 96 can be part of a central control device 98 or can be integrated within the housing 70 of the structural unit 29.
  • the adjusting device 10 can be operated in a high-speed mode, with which, for example, the backrest 14 can be very quickly adjusted to a predefined position for the function of an entry aid or an occupant impact protection.
  • the adjustment device can have an anti-trap function in which the movement of the seat part 14 is stopped or reversed as soon as it encounters an obstacle in its path of movement (forwards or backwards).
  • the invention is preferably used for the adjustment of a backrest of a motor vehicle seat, but can also be used for other seat parts such as the seat base or headrest or other parts to be adjusted in the motor vehicle.
  • the invention is not limited to a specific embodiment of the load torque lock, the reduction gear, or the electric motor, but any designs of these three assemblies can be combined in any way, therefore the invention also includes individual features of the exemplary embodiments or any combination of the features of the different ones embodiments.
  • the use of an EC motor has proven particularly favorable, in which it is arranged together with the gear unit and the load torque lock in a compact cylindrical housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention relates to a device for displacing seat elements (12,14), especially pertaining to a reclining seat (14), in relation to each other. An electric motor (30) comprising a gearbox unit (26) is arranged on at least one seat element (12, 14), a load moment blocking device (28) being mounted downstream from the gearbox unit (26).

Description

Vorrichtung zum Verstellen von SitzteilenDevice for adjusting seat parts

Stand der TechnikState of the art

Die Erfindung betrifft eine Vorrichtung zum Verstellen von Sitzteilen mit mindestens zwei gegeneinander beweglich angeordneten Sitzelementen nach der Gattung des unabhängigen Anspruchs.The invention relates to a device for adjusting seat parts with at least two seat elements which are arranged such that they can move relative to one another.

Mit der G 9116485.0 ist eine Vorrichtung zum Anpassen des Verlaufs einer Rückenlehne im Kraftfahrzeug bekannt geworden, bei der Teile der Rückenlehne mittels elektromotorischen Stellantrieb um eine Achse gegeneinander verstellt werden. Dabei ist der Stellantrieb an einer der beiden Seitenwangen der Rückenlehne angeordnet, wobei über eine Welle Hilfsgetriebe in den beiden Seitenwangen angetrieben werden. Solch ein eine Verbindungswelle der beiden Getriebe in den sich gegenüberliegenden Seitenwangen erfordert Bauraum im Bereich des Lehnenkissens, wodurch der erzielbare Sitzkomfort aufgrund einer beschränkten Federungsmöglichkeit eingeschränkt ist. Desweiteren ist bei solch einer Ausführung der Fertigungsaufwand für zwei korrespondierende Getriebe und der Verbindungswelle recht hoch.G 9116485.0 discloses a device for adapting the course of a backrest in a motor vehicle, in which parts of the backrest are adjusted relative to one another about an axis by means of an electric motor-driven actuator. The actuator is arranged on one of the two side bolsters of the backrest, auxiliary gears being driven in the two side bolsters via a shaft. Such a connecting shaft of the two gears in the opposite side bolsters requires installation space in the area of the backrest cushion, as a result of which the achievable seating comfort is limited due to a limited suspension option. Furthermore, the manufacturing effort for two corresponding gears and the connecting shaft is quite high in such an embodiment.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Vorrichtung mit den Merkmalen des unabhängigen Anspruchs 1 hat den Vorteil, dass die Selbsthemmung und die Minimierung des Verdrehspiels des Getriebes sowie die Aufnahme des relativ hohen Drehmomente bei einem Auffahrunfall nicht vom Getriebe direkt aufgenommen werden müssen, sondern von einer Lastmomentensperre, die dem Getriebe nachgeschaltet ist. Aus diesem Grunde kann auf ein zweites Getriebe in der gegenüberliegenden Seitenwange des Sitzteils verzichtet werden, insbesondere wenn der Rahmen des Sitzteils entsprechend stabiler ausgelegt ist. Das Getriebe dient dabei nur der Übertragung der Verstellkräfte, so dass durch den Entfall des zweiten Getriebes und der Verbindungswelle und einer Synchronisationsvorrichtung der beiden Seitenwangen sowohl die Anzahl der Bauteile als auch der Montageaufwand stark reduziert wird. Durch das Wegfallen zusätzlicher Bauteile ergeben sich Bauraumvorteile in den Sitzteilen, wodurch beispielsweise deren Federungskomfort gesteigert werden kann.The device according to the invention with the features of independent claim 1 has the advantage that the self-locking and the minimization of the backlash of the transmission as well as the absorption of the relatively high torques in the event of a rear-end collision do not have to be absorbed directly by the transmission, but rather by a load torque lock that the transmission is connected downstream. For this reason, there is no need for a second gear in the opposite side cheek of the seat part be, especially if the frame of the seat part is designed accordingly more stable. The gearbox only serves to transmit the adjustment forces, so that the elimination of the second gearbox and the connecting shaft and a synchronization device of the two side cheeks greatly reduce both the number of components and the assembly effort. The omission of additional components results in advantages in terms of installation space in the seat parts, which, for example, can increase their suspension comfort.

Durch die in der Unteransprüchen angegebenen Maßnahmen sind vorteilhafte Weiterbildungen der Vorrichtung nach dem Anspruch 1 möglich. So ist es von Vorteil, wenn die Lastenmomentensperre eine gemeinsame Baueinheit mit dem Getriebe und mit dem Elektromotor bildet, da eine solche kompakte Einheit einfach in die Beschläge der Sitzteile montiert werden kann. Hat diese Baueinheit in etwa die Form eines Zylinders mit einem Durchmesser von beispielsweise < 100 mm, kann diese direkt als alternative zu einem manuell betätigten Getriebe in die Beschläge des Sitzteils eingebaut werden.Advantageous further developments of the device according to claim 1 are possible through the measures specified in the subclaims. It is advantageous if the load torque lock forms a common structural unit with the gearbox and with the electric motor, since such a compact unit can be easily installed in the fittings of the seat parts. If this unit has the shape of a cylinder with a diameter of <100 mm, for example, it can be installed directly in the fittings of the seat part as an alternative to a manually operated transmission.

Die relative kleine Bauform des Getriebes und des Elektromotors wird dadurch ermöglicht, dass die bei einem crash auftretenden hohen crash-Momente über die Lastmomentensperre abgeleitet werden, so dass die Baueinheit lediglich für die weit geringeren Verstellmomente des Normalbetriebs ausgelegt werden muß. Somit kann auch bei der Verwendung nur einer Getriebeeinheit auf einer Seite des Sitzteils gewährleistet werden, dass die betreffenden Sitzteile auch bei einem Auffahrunfall in einer definierten Position verbleiben, damit wirksame Insassenschutzmaßnahmen angewendet werden können.The relatively small design of the transmission and the electric motor is made possible by the fact that the high crash moments that occur in a crash are derived via the load torque lock, so that the structural unit only has to be designed for the much lower adjustment torques of normal operation. Thus, even when only one gear unit is used on one side of the seat part, it can be ensured that the relevant seat parts remain in a defined position even in the event of a rear-end collision, so that effective occupant protection measures can be applied.

Besonders günstig ist, dass aufgrund der Lastmomentensperre das Spiel zwischen den Sitzteilen deutlich reduziert werden kann, und somit das Getriebe mit großzügigeren Toleranzen gefertigt werden kann oder auch Antriebe ohne Selbsthemmung verwendet werden können. Dadurch, dass das Spiels des Getriebes durch die Lastmomentensperre unterbunden wird, kann im Getriebe auf zusätzliche Federelemente zum Spielausgleich teilweise verzichtet werden. Beim Auftreten großer Crashkräfte können diese die Verzahnung des Getriebes nicht beschädigen, da diese Kräfte von der Lastmomentensperre aufgenommen werden. Eine besonders bevorzugte Ausführungsform eines Antriebs ist ein elektrisch kommutierter EC-Motor, der besonders günstig in kompakter Zylinderform herstellbar ist. Dabei spielt es keine Rolle, dass der EC-Motor keine Selbsthemmung aufweist, weil die Selbsthemmung durch die nachgeschaltete integrierte Lastmomentensperre realisiert werden kann. Durch den Verzicht auf ein Schneckengetriebe verbessert sich der Wirkungsgrad für die Getriebeantriebseinheit deutlich, wodurch die aufzubringende maximale Leistung des Antriebs und damit dessen Bauvolumen reduziert werden kann.It is particularly favorable that the play between the seat parts can be significantly reduced due to the load torque lock, and thus the transmission can be manufactured with more generous tolerances or drives can be used without self-locking. Because the backlash of the gearbox is prevented by the load torque lock, additional spring elements for backlash compensation can be partially dispensed with in the gearbox. If large crash forces occur, they cannot damage the gearing of the gearbox, since these forces are absorbed by the load torque lock. A particularly preferred embodiment of a drive is an electrically commutated EC motor, which is particularly inexpensive to produce in a compact cylindrical shape. It does not matter that the EC motor has no self-locking, because the self-locking can be realized by the downstream integrated load torque lock. By dispensing with a worm gear, the efficiency for the gear drive unit is significantly improved, as a result of which the maximum power of the drive that can be applied and thus its overall volume can be reduced.

Die Ansteuerung des Elektromotors mittels Pulsweitenmodulation ermöglicht eine Vielzahl von Komfortfunktionen für die Sitzverstellung, wie beispielsweise eine Reduzierung des Verstellgeräusches und/oder eine variable Verstellgeschwindigkeit.The control of the electric motor by means of pulse width modulation enables a large number of comfort functions for seat adjustment, such as a reduction in the adjustment noise and / or a variable adjustment speed.

In einer bevorzugten Ausgestaltung ist die Baueinheit von Elektromotorgetriebe und Lastmomentensperre an einer von zwei Seitenwangen einer Rückenlehne angeordnet, die gegenüber einem weiteren Sitzelement verkippt werden kann. Da durch die große Hebewirkung der Rückenlehne in Verbindung mit dem Körpergewicht eines Fahrzeugs Insassen sehr hohe Drehmomente auf das Getriebe einwirken, ist die Aufnahme dieser hohen Momente durch die integrierte Lastmomentensperre besonders vorteilhaft.In a preferred embodiment, the assembly of the electric motor transmission and the load torque lock is arranged on one of two side bolsters of a backrest, which can be tilted relative to a further seat element. Since very high torques act on the transmission due to the large lifting effect of the backrest in conjunction with the body weight of a vehicle, the absorption of these high moments by the integrated load torque lock is particularly advantageous.

Wird der Baueinheit unmittelbar vor einem Auffahrunfall ein Signal beispielsweise einer Pre-Crash-Sensorik zugeführt, so kann die Rückenlehne oder andere Sitzelemente mittels eines beschleunigten Verstell Vorgangs sehr schnell in eine vorbestimmte Position verstellt werden, die auf einen optimalen Insassenschutz im Falle eines Crashs optimiert ist.If a signal is sent to the assembly immediately before a rear-end collision, for example a pre-crash sensor system, the backrest or other seat elements can be adjusted very quickly to a predetermined position by means of an accelerated adjustment process, which is optimized for optimal occupant protection in the event of a crash ,

Des weiteren kann solch eine Beschleunigung der Verstellung beispielsweise der Rückenlehne zum komfortableren Aus/Einstieg beispielsweise von Fondpassagieren verwendet werden, bei der die entsprechenden Sitzteile im Schnelllauf in eine vordefinierte Position gefahren werden.Furthermore, such an acceleration of the adjustment of the backrest, for example, can be used to make it easier for passengers in the rear to get in or out, in which the corresponding seat parts are moved to a predefined position at high speed.

Von Vorteil ist es, wenn die Antriebseinheit einen Einklemmschutz - insbesondere beim Schnelllauf- umfasst, bei dem das Einklemmen eines Passagiers oder eines Gegenstands auf dem vorderen oder hinteren Sitz wirksam verhindert wird.It is advantageous if the drive unit includes an anti-trap device, in particular when running at high speed, in which the trapping of a passenger or an object on the front or rear seat is effectively prevented.

Zeichnung In der Zeichnung sind verschiedene Ausführungsbeispiele einer erfindungsgemäßen Vorrichtung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Fig. 1 eine erfindungsgemäße Vorrichtung zum Verstellen von Sitzteilen, Fig. 2 einen Schnitt durch eine gemeinsame Baueinheit von Getriebe und Lastmomentsperre gemäß 11-11, Fig. 3 und Fig. 4 zwei Schnitte. Ein weiteres Ausführungsbeispiel und Fig. 5 und Fig. 6 zwei Schnitte durch eine weitere Baueinheit mit integriertem EC-Motor.drawing Various exemplary embodiments of a device according to the invention are shown in the drawing and explained in more detail in the description below. 1 shows a device according to the invention for adjusting seat parts, FIG. 2 shows a section through a common structural unit of transmission and load torque lock according to 11-11, FIGS. 3 and 4 show two sections. Another embodiment and FIGS. 5 and 6 show two sections through a further structural unit with an integrated EC motor.

Beschreibungdescription

Fig. 1 zeigt einen Fahrzeugsitz (10) mit einem ersten Sitzelement (12) und einem zweiten Sitzelement (14) das als Rückenlehne ausgebildet ist. Die Sitzelemente (12, 14) weisen jeweils zwei gegenüberliegende Seitenwangen (16, 18) auf. An Sitzelement (12) sind an den einer Seitenwange (16) ein Beschlag (20) und am Sitzteil (14) ein Beschlag (22) befestigt, die über ein Gelenk (24) miteinander verbunden sind, so dass die beiden Sitzelemente (12 und 14) gegeneinander verdreht werden können. An einer Seitenwange (16, 18) ist in dem Gelenk (24) eine Getriebeeinheit (26) mit einer integrierten Lastenmomentensperre (28) angeordnet, die zusammen eine Baueinheit 29 bilden. Die Getriebeeinheit (26) wird von einem Elektromotor (30) angetrieben, der in diesem Ausführungsbeispiel als DC-Motor ausgeführt ist, der über eine auf einer Ankerwelle 32 angeformten Schnecke (34) mit einem Schneckenrad (36) der Getriebeeinheit (26) wirkverbunden ist.Fig. 1 shows a vehicle seat (10) with a first seat element (12) and a second seat element (14) which is designed as a backrest. The seat elements (12, 14) each have two opposite side cheeks (16, 18). A fitting (20) and a fitting (22) are fastened to the seat element (12) on one side cheek (16) and are connected to one another via a joint (24), so that the two seat elements (12 and 14) can be rotated against each other. A gear unit (26) with an integrated load torque lock (28), which together form a structural unit 29, is arranged in the joint (24) on a side wall (16, 18). The gear unit (26) is driven by an electric motor (30), which in this exemplary embodiment is designed as a DC motor, which is operatively connected to a worm wheel (36) of the gear unit (26) via a worm (34) formed on an armature shaft 32 ,

Wie in Fig. 2 dargestellt, ist das Schneckenrad (36) auf einer Welle (38) drehbar gelagert und treibt einen Exzenter (40) an, der ebenfalls drehbar auf der Welle (38) gelagert ist. Auf dem Exzenter (40) ist ein Exzenterrad (42) angeordnet, das axial versetzt zwei Außenverzahnungen (44) und (46) mit einer unterschiedlichen Anzahl von Zähnen aufweist. Die erste Außenverzahnung (44) verhält sich auf einer Innenverzahnung (48) eines ersten Zahnrads (50) ab, das mit dem Beschlag (20) des ersten Sitzelements (12) fest verbunden ist. Die zweite Außenverzahnung 46 wechselwirkt mit einer Innenverzahnung (52) eines zweiten Zahnrads (54) mit axial Ausformungen (56), die in Aussparungen (58) zweier Bremsbacken (60 der Lastenmomentensperre (28) greifen. Die Bremsbacken (60) sind wiederum über eine Halbwelle 64 mit dem Beschlag (22) des zweiten Sitzelements (14) verbunden, so dass mittels einer Untersetzung entsprechend der unterschiedlichen Zähneanzahl der Außenverzahnungen (44) und (46) eine Verdrehung der beiden Beschläge (20) und (22) mit den jeweiligen Sitzelementen (12 und 14) erzeugt wird. Das zweite Zahnrad 54 stützt sich axial gegenüber dem ersten Zahnrad 50, und radial über eine Scheibe 68 gegenüber der Welle 38. Auf der Welle 38 ist des weiteren die hülsenförmige Halbwelle 64 gelagert, die das Antriebsmoment und den Bremsbacken 60 auf den Beschlag 22 überträgt. Die Welle 38 ist in diesem Ausführungsbeispiel als Schraube ausgebildet, die ein Gehäuse 70 der Baueinheit 29 durchdringt und die Getriebeeinheit 26 sowie die Lasten omentsperre 28 axial mittels einer Mutter 72 und einer Anlaufscheibe 74 sichert.As shown in Fig. 2, the worm wheel (36) is rotatably mounted on a shaft (38) and drives an eccentric (40) which is also rotatably mounted on the shaft (38). An eccentric wheel (42) is arranged on the eccentric (40) and has two external toothings (44) and (46) with a different number of teeth. The first external toothing (44) behaves on an internal toothing (48) of a first gearwheel (50) which is firmly connected to the fitting (20) of the first seat element (12). The second external toothing 46 interacts with an internal toothing (52) of a second gear wheel (54) with axial formations (56) which engage in recesses (58) in two brake shoes (60 of the load torque lock (28). The brake shoes (60) are in turn via one Half-shaft 64 is connected to the fitting (22) of the second seat element (14), so that by means of a reduction according to the different number of teeth of the external gears (44) and (46) Rotation of the two fittings (20) and (22) with the respective seat elements (12 and 14) is generated. The second gear 54 is supported axially with respect to the first gear 50 and radially via a disk 68 with respect to the shaft 38. The sleeve-shaped half-shaft 64 is also mounted on the shaft 38 and transmits the drive torque and the brake shoes 60 to the fitting 22. In this exemplary embodiment, the shaft 38 is designed as a screw which penetrates a housing 70 of the structural unit 29 and axially secures the gear unit 26 and the loads 28 by means of a nut 72 and a thrust washer 74.

Ein Schnitt durch die Lastenmomentensperre gemäß V-V ist in Fig. 5 dargestellt, sind zwischen den Bremsbacken (60) Elemente (62) angeordnet, die bei einer antriebsseitigen Krafteinwirkung ein Verklemmen der Bremsbacken (60) gegenüber dem Beschlag (20) mit dem ersten Zahnrad (59 verhindert, wirken jedoch Kräfte vom Sitzteil (14) über den Beschlag 22 auf die Halbwelle (64) ein so verklemmt sich die Bremsbacken (60) gegenüber dem Beschlag (20) bzw. dem Zahnrad (50) wodurch von diesem direkt auf das Sitzteil 14 einwirkenden Kräfte aufgenommen werden, ohne die Verzahnung des Getriebes zu belasten (44), 46, 48, 52). Auf diese Weise ist unabhängig von der Kraftübertragung des Elektromotors (30) eine wirkungsvolle Selbsthemmung des Getriebes gewährleistet.A section through the load torque lock according to VV is shown in FIG. 5, elements (62) are arranged between the brake shoes (60) which, when the drive acts on the force, cause the brake shoes (60) to jam with respect to the fitting (20) with the first gear ( 59 prevents, however, forces act from the seat part (14) via the fitting 22 onto the half-shaft (64), so the brake shoes (60) jam with respect to the fitting (20) or the gearwheel (50), thereby directly affecting the seat part 14 acting forces are absorbed without loading the toothing of the gear (44), 46, 48, 52). In this way, an effective self-locking of the transmission is guaranteed regardless of the power transmission of the electric motor (30).

Die Fig. 3 und 4 zeigen ein weiteres Ausführungsbeispiel bei dem Getriebeeinheit 26 entsprechend Fig. 2 ausgebildet ist und ebenfalls über ein Schneckengetriebe 34, 36 angetrieben wird. Das erste Zahnrad 50 ist hierbei mit dem Gehäuse 70 verbunden, das wiederum am Beschlag 20 des ersten Sitzteils 12 befestigt ist. Am zweiten Zahnrad 50 ist ein Mitnehmer 76 angeordnet, der wiederum mit axialen Ausformungen 56 in Aussparung 58 einer Bremsscheibe 78 eingreift. Die Bremsscheibe 78 weist Bremsbacken 60 auf, die mit dem Beschlag 22 des Sitzteils 14 verbunden sind und beim Einwirken eines Drehmoments vom Sitzteil 14 auf die Lastenmomentensperre 28 eine Verdrehung zwischen den Bremsbacken 60 (mit dem Beschlag 22) und dem Gehäuse 70 (mit dem Beschlag 20) verhindern. Wird hingegen ein Antriebsmoment vom Mitnehmer 76 auf die Bremsscheibe 78 übertragen, wird über die Betätigung eines Federmechanismus 80 zwischen der Bremsscheibe 78 und dem Gehäuse 70 eine Bremswirkung zwischen Bremsbacken 60 und Gehäuse 70 unterbunden. Die Welle 38 ist hierbei als Bolzen ausgeführt, der über eine Klemmscheibe 82 im Gehäuse 70 gehalten wird. In den Figuren 5 und 6 ist ein weiteres Ausführungsbeispiel dargestellt, bei dem die Lastmomentensperre 28 nach dem gleichen Prinzip wie in Figur 2 ausgeführt ist. Das Zahnrad 50 ist über das Gehäuse 70 mit dem Beschlag 20 verbunden, das Zahnrad 54 greift über axiale Ausformungen 56 in die Bremsbacken 60, die über die Halbwelle 64 mit dem Beschlag 22 direkt verbunden sind. Der Elektromotor 30 ist hierbei als bürstenloser EC-Motor ausgeführt, der komplett in das Gehäuse 70 der gemeinsamen Baueinheit 29 von Getriebeeinheit 26 und der Lastmomentensperre 28 integriert ist. Dabei ist auf der Welle 38 drehbar ein Anker 84 innerhalb von Feldspulen 86 angeordnet, wobei der Anker 84 gleichzeitig als Planetenträger 88 für mindestens 1 Satz Planetenräder 90 mit den Verzahnungen 44 und 46 ausgebildet ist. Die Planetenräder 90 sind drehbar im Anker 84 gelagert und wälzen sich auf der Innenverzahnung 84 und 52 der Zahnräder 50 und 54 ab, die jeweils mit den Beschlägen 20 und 22 verbunden sind. Eine Untersetzung des EC-Motors 30 wird durch eine Differenz der Zähne der beiden Verzahnungen 44, 46 bestimmt, so dass sich die beiden Beschläge 20 und 22 entsprechend gegeneinander verdrehen. Bei dieser Ausführung weist der EC-Motor 30 mit der Getriebeeinheit 26 keine Selbsthemmung auf, die Eliminierung des Spiels und die Aufnahme von Momenten, die über das Sitzteil 14, insbesondere eine Sitzlehne, auf das Gelenk 24 eingeleitet werden, werden hierbei komplett von der Lastmomentensperre 28 übernommen.3 and 4 show a further exemplary embodiment in which the gear unit 26 is designed in accordance with FIG. 2 and is likewise driven via a worm gear 34, 36. The first gear 50 is connected to the housing 70, which in turn is attached to the fitting 20 of the first seat part 12. A driver 76 is arranged on the second gear wheel 50, which in turn engages with axial formations 56 in recess 58 of a brake disk 78. The brake disc 78 has brake shoes 60 which are connected to the fitting 22 of the seat part 14 and, when a torque acts from the seat part 14 on the load torque lock 28, a rotation between the brake shoes 60 (with the fitting 22) and the housing 70 (with the fitting 20) prevent. If, on the other hand, a drive torque is transmitted from the driver 76 to the brake disc 78, a braking action between the brake shoes 60 and the housing 70 is prevented by actuating a spring mechanism 80 between the brake disc 78 and the housing 70. The shaft 38 is designed as a bolt which is held in the housing 70 by means of a clamping disk 82. A further exemplary embodiment is shown in FIGS. 5 and 6, in which the load torque lock 28 is designed according to the same principle as in FIG. 2. The gearwheel 50 is connected to the fitting 20 via the housing 70, the gearwheel 54 engages via axial formations 56 in the brake shoes 60, which are directly connected to the fitting 22 via the half shaft 64. The electric motor 30 is designed here as a brushless EC motor, which is completely integrated in the housing 70 of the common structural unit 29 of the transmission unit 26 and the load torque lock 28. An armature 84 is rotatably arranged on the shaft 38 within field coils 86, the armature 84 being simultaneously designed as a planet carrier 88 for at least 1 set of planet gears 90 with the toothings 44 and 46. The planet gears 90 are rotatably mounted in the armature 84 and roll on the internal teeth 84 and 52 of the gears 50 and 54, which are each connected to the fittings 20 and 22. A reduction ratio of the EC motor 30 is determined by a difference in the teeth of the two toothings 44, 46, so that the two fittings 20 and 22 twist against each other accordingly. In this embodiment, the EC motor 30 with the gear unit 26 has no self-locking, the elimination of the play and the absorption of moments which are introduced to the joint 24 via the seat part 14, in particular a seat back, are completely eliminated by the load torque lock 28 taken over.

Eine solche Versteilvorrichtung mit in das zylindrische Gehäuse 70 integriertem EC- Motor 30 ist so kompakt ausgestaltet, dass diese direkt als Alternative für eine manuelle Sitzlehnenverstellung eingebaut werden kann. Die Baueinheit 29 weist beispielsweise einen Durchmesser 92 von 70 bis 100 mm und eine Länge 94 von 50 bis 80 mm auf. Da die Lastmomentensperre 28 sehr hohe Kräfte auch beim Auftreten eines Auffahrunfalls aufnehmen kann, ist es ausreichend, wenn eine solche Baueinheit 29 nur auf einer Seite der Sitzelemente 12 und 14 eingebaut wird. Auf der gegenüberliegenden Seite der Sitzteile 12 und 14 ist dann lediglich ein Gelenk 24 ohne Getriebeeinheit 26 angeordnet. Dadurch entfällt auch eine Verbindungswelle zwischen den beiden Seitenwangen (20, 22), jedoch kann dafür der Rahmen der Sitzteile 12 und 14 entsprechend stabiler ausgeführt werden.Such an adjusting device with an EC motor 30 integrated into the cylindrical housing 70 is so compact that it can be installed directly as an alternative for manual seat back adjustment. The assembly 29 has, for example, a diameter 92 of 70 to 100 mm and a length 94 of 50 to 80 mm. Since the load torque lock 28 can absorb very high forces even when a rear-end collision occurs, it is sufficient if such a structural unit 29 is installed only on one side of the seat elements 12 and 14. On the opposite side of the seat parts 12 and 14, only a joint 24 without a gear unit 26 is then arranged. This also eliminates the need for a connecting shaft between the two side cheeks (20, 22), but the frame of the seat parts 12 and 14 can be made correspondingly more stable.

In einer Variation der Ausführungsbeispiele wird der Motor 30 mittels einer Pulsweiten- Modulation 95 angesteuert, die in einer Steuereinheit 96 angeordnet ist. Die Steuereinheit 96 kann Bestandteil eines zentralen Steuergeräts 98 sein, oder innerhalb des Gehäuses 70 der Baueinheit 29 integriert sein. Aufgrund der pulsmodulierten Ansteuerung kann die Versteilvorrichtung 10 in einem Schnelllaufmodus betrieben werden, mit dem beispielsweise die Rückenlehne 14 für die Funktion einer Einstieghilfe oder eines Insassenaufprallschutzes sehr schnell in eine vordefinierte Position verstellt werden kann. Zusätzlich kann die Verstellvorrichtung eine Einklemmschutzfunktion aufweisen, bei der die Bewegung des Sitzteils 14 gestoppt oder reversiert wird, sobald sie in ihrem Bewegungsweg (vor oder zurück) auf ein Hindernis trifft.In a variation of the exemplary embodiments, the motor 30 is controlled by means of a pulse width modulation 95, which is arranged in a control unit 96. The control unit 96 can be part of a central control device 98 or can be integrated within the housing 70 of the structural unit 29. Because of the pulse-modulated control, the adjusting device 10 can be operated in a high-speed mode, with which, for example, the backrest 14 can be very quickly adjusted to a predefined position for the function of an entry aid or an occupant impact protection. In addition, the adjustment device can have an anti-trap function in which the movement of the seat part 14 is stopped or reversed as soon as it encounters an obstacle in its path of movement (forwards or backwards).

Die Erfindung findet vorzugsweise Anwendung für die Verstellung einer Rückenlehne eines Kraftfahrzeugsitzes, kann aber auch für andere Sitzteile wie Sitzuntergestell oder Kopfstütze oder andere im Kraftfahrzeug zu verstellende Teile verwendet werden. Die Erfindung ist nicht auf eine bestimmte Ausführungsform der Lastmomentensperre, des Untersetzungsgetriebes, oder des Elektromotors beschränkt, sondern es können beliebige Ausführungen dieser drei Baugruppen in beliebiger Weise kombiniert werden, daher umfasst die Erfindung auch einzelne Merkmale der Ausführungsbeispiele oder eine beliebige Kombination der Merkmale der unterschiedlichen Ausführungsbeispiele. Besonders günstig erweist sich jedoch die Verwendung eines EC-Motors, bei dem dieser zusammen mit der Getriebeeinheit und er Lastmomentsperre in einem kompakten zylindrischen Gehäuse angeordnet ist. The invention is preferably used for the adjustment of a backrest of a motor vehicle seat, but can also be used for other seat parts such as the seat base or headrest or other parts to be adjusted in the motor vehicle. The invention is not limited to a specific embodiment of the load torque lock, the reduction gear, or the electric motor, but any designs of these three assemblies can be combined in any way, therefore the invention also includes individual features of the exemplary embodiments or any combination of the features of the different ones embodiments. However, the use of an EC motor has proven particularly favorable, in which it is arranged together with the gear unit and the load torque lock in a compact cylindrical housing.

Claims

Patentansprüche claims 1. Vorrichtung (10) zum Verstellen von Sitzteilen (12, 14), insbesondere einer Rückenlehne (14), mit mindestens zwei gegeneinander beweglich angeordneten Sitzelementen (12, 14), wobei an mindestens einem der Sitzelemente (12, 14) ein Elektromotor (30) mit einer Getriebeeinheit (26) angeordnet ist, dadurch gekennzeichnet, dass der Getriebeeinheit (26) eine Lastmomentensperre (28) nachgeschaltet ist.1. Device (10) for adjusting seat parts (12, 14), in particular a backrest (14), with at least two seat elements (12, 14) arranged to be movable relative to one another, with an electric motor () on at least one of the seat elements (12, 14). 30) with a gear unit (26), characterized in that the gear unit (26) is followed by a load torque lock (28). 2. Vorrichtung (10) nach Anspruch 1, dadurch gekennzeichnet, dass die Getriebeeinheit (26) und die Lastmomentensperre (28) eine gemeinsame Baueinheit (29) bilden, die näherungsweise zylinderförmig ausgebildet ist.2. Device (10) according to claim 1, characterized in that the gear unit (26) and the load torque lock (28) form a common structural unit (29) which is approximately cylindrical. 3. Vorrichtung (10) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Lastmomentensperre (28) derart ausgelegt ist, dass bei einem Aufprallunfall auftretende Crash-Kräfte aufgenommen werden können, ohne dass sich die beiden Sitzelemente (12, 14) gegeneinander bewegen.3. Device (10) according to one of claims 1 or 2, characterized in that the load torque lock (28) is designed such that crash forces occurring in an impact accident can be absorbed without the two seat elements (12, 14) move against each other. 4. Vorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Lastmomentensperre (28) das Spiel der Getriebeeinheit (26) reduziert und eine Relativbewegung der beiden Sitzelemente (12, 14) verhindert, wenn der Elektromotor (30) stillsteht.4. Device (10) according to one of the preceding claims, characterized in that the load torque lock (28) reduces the play of the gear unit (26) and prevents a relative movement of the two seat elements (12, 14) when the electric motor (30) is at a standstill. 5. Vorrichtung (lθ)nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (30) bürstenlos kommutiert ist, und insbesondere in die gemeinsame Baueinheit (29) integriert ist. 5. The device (lθ) according to one of the preceding claims, characterized in that the electric motor (30) is commutated without brushes, and in particular is integrated in the common structural unit (29). 6. Vorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (30) mittels Pulsweitenmodulation (95) angesteuert ist.6. Device (10) according to one of the preceding claims, characterized in that the electric motor (30) is controlled by means of pulse width modulation (95). 7. Vorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein Sitzelement (12, 14) als Rückenlehnenelement (14) mit zwei Seitenwangen (16, 18, 20, 22) ausgebildet ist, wobei nur eine der beiden Seitenwangen (16, 18, 20, 22) eine Getriebeeinheit (26) aufweist.7. Device (10) according to one of the preceding claims, characterized in that at least one seat element (12, 14) is designed as a backrest element (14) with two side cheeks (16, 18, 20, 22), only one of the two side cheeks (16, 18, 20, 22) has a gear unit (26). 8. Vorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Rückenlehnenelement (14) unmittelbar vor einem Aufprallunfall im Schnelllauf in eine crashoptimierte Position verstellbar ist.8. The device (10) according to any one of the preceding claims, characterized in that the backrest element (14) is adjustable in a crash-optimized position immediately before an impact accident in high-speed. 9. Vorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das unbelastete Rückenlehnenelement (14) im Schnelllauf als Einstiegshilfe in eine vordere und hintere End-Position verstellbar ist.9. The device (10) according to any one of the preceding claims, characterized in that the unloaded backrest element (14) is adjustable in rapid motion as an entry aid in a front and rear end position. 10. Vorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Rückenlehnenelement (14) eine Einklemmschutzfunktion (98) aufweist, aufgrund derer die Bewegung des Rückenlehnenelements (14) beim Auftreten eines Einklemmfalls gestoppt oder reversiert wird. 10. The device (10) according to any one of the preceding claims, characterized in that the backrest element (14) has an anti-trap function (98), on the basis of which the movement of the backrest element (14) is stopped or reversed when a trapping occurs.
PCT/DE2003/003074 2003-03-03 2003-09-16 Device for displacing seat elements Ceased WO2004078516A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7640828B2 (en) * 2003-11-28 2010-01-05 Asmo Co., Ltd. Seat drive motor and power seat system
JP2010502500A (en) * 2006-09-08 2010-01-28 ジョンソン・コントロールズ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・オートモティブ・エクスペリエンス Seat adjustment device for vehicle seat
CN106347176A (en) * 2015-07-14 2017-01-25 布罗泽汽车部件制造科堡有限公司 Vehicle seat having a self-locking-free drive device for adjusting the backrest thereof

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005011632U1 (en) * 2005-07-20 2006-11-30 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg gearmotor
DE202007003713U1 (en) 2007-03-13 2008-07-17 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Device for adjusting seating elements
DE102007013521A1 (en) 2007-03-21 2008-09-25 Robert Bosch Gmbh Motor vehicle seat's backrest adjusting device, has gear unit with shifted gear for transferring torque from electric motor to axis of rotation of seat element, where gear unit is formed as worm gear with screw
DE102007058809A1 (en) * 2007-11-29 2009-06-04 SCHÜLE, Robert Modular combinable parts, for the construction of a large number of drives with different properties
US10220729B2 (en) 2015-09-24 2019-03-05 Faurecia Automotive Seating, Llc Seat position-sensing system
CN109070767B (en) 2016-04-11 2021-11-05 佛吉亚汽车座椅有限责任公司 Recliner for vehicle seat
DE102016207524A1 (en) * 2016-05-02 2017-11-02 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Adjustment device for a vehicle seat and control method
US10351020B2 (en) 2016-09-29 2019-07-16 Faurecia Automotive Seating, Llc Recliner for a vehicle seat
US10414296B2 (en) 2016-12-12 2019-09-17 Faurecia Automotive Seating, Llc Recliner for a vehicle seat
US10611273B2 (en) 2017-10-09 2020-04-07 Faurecia Automotive Seating, Llc Recliner system for a vehicle seat
DE102019205103A1 (en) 2019-04-10 2020-10-15 Robert Bosch Gmbh Method for operating electric drive units of seat components in the motor vehicle, preferably in a pre-crash case, and a system for carrying out the method
DE102021208537B3 (en) 2021-08-05 2022-10-13 Volkswagen Aktiengesellschaft Transmission unit, vehicle seat drive, vehicle seat
DE102022114000A1 (en) * 2022-06-02 2023-12-07 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg Drive device for applying a counterforce to avoid undesirable adjustment of an interior assembly
DE102022205736A1 (en) 2022-06-07 2023-12-07 Robert Bosch Gesellschaft mit beschränkter Haftung Method for operating electric drive units of seat components in a motor vehicle with an additional energy storage device, and a system for carrying out the method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931894A1 (en) * 1979-08-06 1981-02-26 Keiper Automobiltechnik Gmbh Vehicle seat adjustable backrest - has hinged fitment consisting of fixed and movable part with worm gear, bearing cage and housing
DE9116485U1 (en) 1991-08-24 1992-11-12 Robert Bosch Gmbh, 7000 Stuttgart Device for adjusting the backrest to the sitting position of a person
DE29907041U1 (en) * 1999-04-20 1999-07-15 Merlaku, Kastriot, 80807 München Front seat control system for two- or three-door vehicles
DE19956901A1 (en) * 1999-11-26 2001-05-31 Hammerstein Gmbh C Rob Adjustable fitting for pivotable adjustment of first linkage part relative to second has toothed parts, elastic arrangement and drive arrangement producing relative motion in left and right regions
DE10016618A1 (en) * 2000-03-28 2001-10-11 Brose Fahrzeugteile Bidirectional drive element has a pair of levers at each end a coupling assembly inbetween
US20020101106A1 (en) * 2001-02-01 2002-08-01 Kim Stephen E. No-back drive mechanism for use with aircraft seat actuators

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931894A1 (en) * 1979-08-06 1981-02-26 Keiper Automobiltechnik Gmbh Vehicle seat adjustable backrest - has hinged fitment consisting of fixed and movable part with worm gear, bearing cage and housing
DE9116485U1 (en) 1991-08-24 1992-11-12 Robert Bosch Gmbh, 7000 Stuttgart Device for adjusting the backrest to the sitting position of a person
DE29907041U1 (en) * 1999-04-20 1999-07-15 Merlaku, Kastriot, 80807 München Front seat control system for two- or three-door vehicles
DE19956901A1 (en) * 1999-11-26 2001-05-31 Hammerstein Gmbh C Rob Adjustable fitting for pivotable adjustment of first linkage part relative to second has toothed parts, elastic arrangement and drive arrangement producing relative motion in left and right regions
DE10016618A1 (en) * 2000-03-28 2001-10-11 Brose Fahrzeugteile Bidirectional drive element has a pair of levers at each end a coupling assembly inbetween
US20020101106A1 (en) * 2001-02-01 2002-08-01 Kim Stephen E. No-back drive mechanism for use with aircraft seat actuators

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7640828B2 (en) * 2003-11-28 2010-01-05 Asmo Co., Ltd. Seat drive motor and power seat system
JP2010502500A (en) * 2006-09-08 2010-01-28 ジョンソン・コントロールズ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・オートモティブ・エクスペリエンス Seat adjustment device for vehicle seat
CN106347176A (en) * 2015-07-14 2017-01-25 布罗泽汽车部件制造科堡有限公司 Vehicle seat having a self-locking-free drive device for adjusting the backrest thereof

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