WO2004078516A1 - Dispositif pour deplacer des parties de siege - Google Patents

Dispositif pour deplacer des parties de siege Download PDF

Info

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
Application number
PCT/DE2003/003074
Other languages
German (de)
English (en)
Inventor
Manfred Winter
Willi Schmidt
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/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
    • B60N2/02—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

L'invention concerne un dispositif servant à déplacer des parties de siège (12, 14), notamment un dossier (14), et comprenant au moins deux éléments de siège (12, 14) déplaçables l'un par rapport à l'autre. Selon l'invention, un moteur électrique (30) muni d'une unité de transmission (26) est monté sur au moins un élément de siège (12, 14), un arrêt de moment de charge (28) étant placé en aval de l'unité de transmission (26).
PCT/DE2003/003074 2003-03-03 2003-09-16 Dispositif pour deplacer des parties de siege WO2004078516A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10309083A DE10309083A1 (de) 2003-03-03 2003-03-03 Vorrichtung zum Verstellen von Sitzteilen
DE10309083.5 2003-03-03

Publications (1)

Publication Number Publication Date
WO2004078516A1 true WO2004078516A1 (fr) 2004-09-16

Family

ID=32864041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/003074 WO2004078516A1 (fr) 2003-03-03 2003-09-16 Dispositif pour deplacer des parties de siege

Country Status (2)

Country Link
DE (1) DE10309083A1 (fr)
WO (1) WO2004078516A1 (fr)

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 (ja) * 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 車両シートのためのシート調節装置
CN106347176A (zh) * 2015-07-14 2017-01-25 布罗泽汽车部件制造科堡有限公司 具有用于调节靠背的非自锁的驱动装置的车辆座椅

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005011632U1 (de) * 2005-07-20 2006-11-30 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg Getriebemotor
DE202007003713U1 (de) 2007-03-13 2008-07-17 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Vorrichtung zum Verstellen von Sitzelementen
DE102007013521A1 (de) 2007-03-21 2008-09-25 Robert Bosch Gmbh Sitzverstellvorrichtung
DE102007058809A1 (de) * 2007-11-29 2009-06-04 SCHÜLE, Robert Modular kombinierbare Teile, zum Bau einer Vielzahl von Antrieben mit unterschiedlichen Eigenschaften
US10220729B2 (en) 2015-09-24 2019-03-05 Faurecia Automotive Seating, Llc Seat position-sensing system
CN109070767B (zh) 2016-04-11 2021-11-05 佛吉亚汽车座椅有限责任公司 用于车辆座椅的倾角调节器
DE102016207524A1 (de) * 2016-05-02 2017-11-02 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Verstelleinrichtung für einen Fahrzeugsitz und Steuerungsverfahren
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 (de) * 2019-04-10 2020-10-15 Robert Bosch Gmbh Verfahren zum Betreiben von elektrischen Antriebseinheiten von Sitzkomponenten im Kraftfahrzeug, vorzugsweise in einem Pre-Crash-Fall, sowie ein System zum Ausführen des Verfahrens
DE102021208537B3 (de) 2021-08-05 2022-10-13 Volkswagen Aktiengesellschaft Getriebeeinheit, Fahrzeugsitzantrieb, Fahrzeugsitz
DE102022114000A1 (de) * 2022-06-02 2023-12-07 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg Antriebsvorrichtung zum Aufbringen einer Gegenkraft für die Vermeidung einer unerwünschten Verstellung einer Innenraumbaugruppe
DE102022205736A1 (de) 2022-06-07 2023-12-07 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Betreiben von elektrischen Antriebseinheiten von Sitzkomponenten im Kraftfahrzeug mit einem zusätzlichen Energiespeicher, sowie ein System zum Ausführen des Verfahrens

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931894A1 (de) * 1979-08-06 1981-02-26 Keiper Automobiltechnik Gmbh Gelenkbeschlag fuer sitze mit verstellbarer rueckenlehne, insbesondere fuer kraftfahrzeugsitze
DE9116485U1 (de) 1991-08-24 1992-11-12 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum Anpassen des Verlaufs der Rückenlehne an die Sitzposition einer Person
DE29907041U1 (de) * 1999-04-20 1999-07-15 Merlaku, Kastriot, 80807 München Vordersitz-Steuerungs-System für zwei- oder drei-türige Fahrzeuge
DE19956901A1 (de) * 1999-11-26 2001-05-31 Hammerstein Gmbh C Rob Einstellbarer Beschlag für eine Schwenkverstellung eines ersten Gelenkteils gegenüber einem zweiten Gelenkteil
DE10016618A1 (de) * 2000-03-28 2001-10-11 Brose Fahrzeugteile Beidseitig wirkender Antrieb
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 (de) * 1979-08-06 1981-02-26 Keiper Automobiltechnik Gmbh Gelenkbeschlag fuer sitze mit verstellbarer rueckenlehne, insbesondere fuer kraftfahrzeugsitze
DE9116485U1 (de) 1991-08-24 1992-11-12 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum Anpassen des Verlaufs der Rückenlehne an die Sitzposition einer Person
DE29907041U1 (de) * 1999-04-20 1999-07-15 Merlaku, Kastriot, 80807 München Vordersitz-Steuerungs-System für zwei- oder drei-türige Fahrzeuge
DE19956901A1 (de) * 1999-11-26 2001-05-31 Hammerstein Gmbh C Rob Einstellbarer Beschlag für eine Schwenkverstellung eines ersten Gelenkteils gegenüber einem zweiten Gelenkteil
DE10016618A1 (de) * 2000-03-28 2001-10-11 Brose Fahrzeugteile Beidseitig wirkender Antrieb
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 (ja) * 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 車両シートのためのシート調節装置
CN106347176A (zh) * 2015-07-14 2017-01-25 布罗泽汽车部件制造科堡有限公司 具有用于调节靠背的非自锁的驱动装置的车辆座椅

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