WO2008083405A1 - Siège de véhicule - Google Patents

Siège de véhicule Download PDF

Info

Publication number
WO2008083405A1
WO2008083405A1 PCT/US2008/050045 US2008050045W WO2008083405A1 WO 2008083405 A1 WO2008083405 A1 WO 2008083405A1 US 2008050045 W US2008050045 W US 2008050045W WO 2008083405 A1 WO2008083405 A1 WO 2008083405A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
latch mechanism
rotation
seat back
drive link
Prior art date
Application number
PCT/US2008/050045
Other languages
English (en)
Inventor
Kurt Seibold
Thomas G. Hall
Original Assignee
Johnson Controls Technology Company
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 Johnson Controls Technology Company filed Critical Johnson Controls Technology Company
Publication of WO2008083405A1 publication Critical patent/WO2008083405A1/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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • 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
    • B60N2/235—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 gear-pawl type mechanisms
    • B60N2/2352—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 gear-pawl type mechanisms with external pawls
    • 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
    • B60N2/32—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use
    • B60N2/36—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a loading platform
    • 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
    • B60N2002/924—Positioning and locking mechanisms using electric or hydraulic energy

Definitions

  • the present application relates generally to the field of automotive vehicle seat systems and more specifically to the field of recliner mechanisms for use in automotive vehicle seat systems.
  • Some power seating systems employ a continuously engaged recliner mechanism driven by an electric motor, hi certain continuously engaged power recliner mechanisms, the motor drives a set of planetary gears which in turn drives a mating gear which rotates the seat-back.
  • the motor may drive an inner gear, which in turn drives an outer gear which rotates the seat-back.
  • the motor may drive a lead screw, which in turn drives a gear which rotates the seat-back.
  • Automotive vehicle manufacturers offer many different levels of performance, safety, function and convenience off the same vehicle platform. It has become common to offer one level vehicle with manual seat adjust mechanisms and a second level vehicle with electronic controlled, motor driven seat adjust mechanisms. This has been achieved by using different subsystems with little or no common or similar parts between the power and the manual operated seating systems. Thus, there is additional cost and complexity associated with achieving the flexibility to offer different options to the end user. Hence, it would be advantageous for a manufacturer to be able to interchange manual and power seat adjust systems with as little tear up as possible to the mechanism interfacing systems, such as back-frame or cushion-frame.
  • Seating systems may be operated manually by employing a release lever or handle to unlatch a manual seat-back adjust mechanism to allow for rotation of the seat-back from the occupant seating position or design position to a utility position such as fold flat or a stow position.
  • Manual adjustment may also be provided through the use of disengaging or discontinuously engaged systems, such as pawl and sector type recliners or round recliners.
  • a vehicle seat system including a seat bottom and a seat back.
  • the seat includes a recliner mechanism for providing rotation of the seat-back.
  • the recliner mechanism includes a latch mechanism coupled to the seat back and a rotation mechanism for rotating the latch mechanism and the seat back.
  • the seat system includes a single electric motor for driving the release of the latch mechanism to permit rotation of the seat back and for driving the rotation of the seat back.
  • the system may include a drive link coupled to the latch mechanism; wherein the drive link includes a slot configured to receive a bushing connected to the latch mechanism.
  • the system may be configured so that rotation of the sector gear causing the drive link to move relative to the bushing to thereby operate a latching cam to unlatch the latch mechanism.
  • a vehicle seat system including a seat bottom and a seat back is provided.
  • the system is configured so that the seat back is prevented from rotating by a latch mechanism connected to the seat back.
  • the latch mechanism is configured to be disengaged to permit rotation of the seat back to a flat position adjacent the seat bottom.
  • the seat system includes a single motor for both disengaging the latch mechanism and driving the rotation of the seat back.
  • Fig. 1 is a perspective view of an automotive vehicle seat.
  • FIG. 2 is a perspective view of an embodiment of seating recliner mechanism in the seat-back latch locked position.
  • FIG. 3 is a perspective view of the seating recliner mechanism in the seat- back latch unlocked position.
  • Fig. 4 is a perspective view of the seating recliner mechanism of Fig. 2 showing the seat-back clock spring and motor attachment.
  • Fig. 5 is a perspective view of a vehicle seating system including the recliner mechanism of Fig. 2.
  • Fig. 6 is a perspective view of an alternative embodiment of a seat recliner mechanism showing power gear elements that are driven by the electric motor.
  • An exemplary embodiment of a vehicle seat that provides convenient utility in the form of a power rotatable seat-back through the coupling of a discontinuously engaged latch mechanism with a single electric motor that both serves to release the mechanism and rotate the seat-back.
  • the motor drives the release of the discontinuously engaged latch mechanism by driving a set of coupled gears which in turn uses the rotational motion of the sector gear to translate a link mechanism in a quasi-linear direction which in turn creates a rotation on the latch mechanism's latching cam inducing the latch mechanism to release.
  • the same motor then by rotation of the coupled gears allows for the latch mechanism or seat-back to rotate from a design or occupant seating position to a utility or fold flat position.
  • the remote switch Through actuation of the remote switch, it reverses direction of rotation of the motor and through the coupled gears rotates the latch mechanism or seat-back from the fold flat position back up to the occupant seating position and allows for the latch mechanism to relock.
  • the latch mechanism is in the load path and manages the necessary strength requirements, while the motor, gears, and linkage are not in the load path, so they may be reduced in mass for efficiency.
  • FIG. 1 Another exemplary embodiment of a vehicle seat that provides convenient utility in the form of a power rotatable seat-back through the coupling of a discontinuously engaged round recliner mechanism with a single electric motor that both serves to release the mechanism and rotate the seat-back.
  • the motor drives the release of the discontinuously engaged round recliner mechanism by driving a set of coupled gears which in turn uses the rotational motion of the sector gear to rotate the release lever attached to the round recliner mechanism latching cam inducing release of recliner mechanism to release.
  • the same motor then by rotation of the coupled gears allows for the latch mechanism or seat-back to rotate from a design or occupant seating position to a utility or fold flat position.
  • the remote switch Through actuation of the remote switch, it reverses direction of rotation of the motor and through the coupled gears rotates the latch mechanism or seat-back from the fold flat position back up to the occupant seating position and allows for the recliner mechanism to relock.
  • the recliner mechanism is in the load path and manages the necessary strength requirements, while the motor, gears, and linkage are not in the load path, so they may be reduced in mass for efficiency.
  • the present application discloses the coupling of a discontinuously engaged, or locking, recliner mechanism with an electric motor through a gear mesh and release linkage to provide power rotation of the seat-back while maintaining the necessary strength requirements.
  • an exemplary embodiment of an automotive vehicle seat system 10 comprising a seat-back 13, a seat bottom or seat cushion 15, a remote switch or operating mechanism 17 for operation of seat 10, a seat-back pivot axis 19 and a recliner mechanism system 20 (contained internally to seat system).
  • Switch 17 may be located anywhere in the automotive vehicle, but typically for end user convenience is on or near the seat to which responds to operation of the switch operates.
  • seat-back 13 may be rotatable, about seat-back axis 19, by powered operation from a normal occupant seating position (position shown in Fig. 1) to that of a utility position (or fold flat position), through actuation of remote switch 17.
  • Seat-back 13 may be rotatable, about seat-back axis 19, by powered operation from the utility position back to the occupant seating position through reverse actuation of remote switch 17.
  • An alternative embodiment of seat system 10 may involve the use of a four bar system in which the motion of the seat-back drives motion of the seat base or seat cushion.
  • an exemplary embodiment of recliner mechanism system 20 including a rotatable gear or sector 21 (i.e., a portion or sector of a disc containing gear teeth), a pinion drive gear 22, an electric motor 23, a stop stud 25, a bushing 26, a drive link 27, a pivot pin 28, a latching cam 29, a release shaft 31, a conventional manual latch mechanism 33, a clock spring 35, an axis of relative rotation 37 (extending along the longitudinal axis of pivot pin 28), a mounting mechanism 39, a remote switch 17 and a seat-back pivot axis 19.
  • the rotatable sector 21, drive gear 22, and drive link 27 form part of a rotation mechanism for the seat back.
  • recliner mechanism system 20 is shown in the occupant seating position with latch mechanism 33 in the locked position.
  • recliner mechanism system 20 is shown in the occupant seating position with latch mechanism 33 in the unlocked position.
  • the user may move seatback 13, which is rigidly attached to latch mechanism 33, to the utility position by actuation of remote switch 17.
  • actuation of remote switch 17 may induce electric motor 23, which may be rigidly fixed to mounting mechanism 39, to rotate pinion drive gear 22 in the clockwise direction.
  • Pinion drive gear 22 may be attached to the drive shaft of electric motor 23.
  • Pinion drive gear 22 may be coupled to rotatable sector 21 through meshing gear teeth.
  • Rotatable sector 21 may be attached to latch mechanism 33, but the sector 21 may also be free to rotate relative to latch mechanism 33 about seat-back pivot axis 19.
  • the leading edge of rotatable sector 21 rotates into contact with drive link 27, and then continues in its counter-clockwise rotation, which may induce an upward quasi- linear slide direction of drive link 27.
  • Drive link 27 may slide over bushing 26, which may be rigidly fixed to latch mechanism 33, until the bottom of the slot in drive link 27 contacts bottom side of bushing 26.
  • Drive link 27 may be attached to latching cam 29 by pivot pin 28, which may allow for relative rotation between drive link 27 and latching cam 29 about axis of relative rotation 37.
  • latching cam 29 may be rigidly attached to release drive shaft 31.
  • the drive shaft 31 may induce release of latch mechanism 33.
  • Release of latch mechanism 33 allows the latch mechanism along with seat-back 13 to rotate about seat-back pivot axis 19 in a counter-clockwise direction until stop stud 25, which may be rigidly attached to latch mechanism 33, contacts the trailing edge of rotatable sector 21.
  • This counter-clockwise rotation of latch mechanism 33 and seat-back 13 may be induced by a preexisting torque from clock spring 35.
  • the preexisting torque may be created by winding clock spring 35 when seat-back 13 rotates from the utility position to the occupant seating position. Rotation of seat-back 13 and latch mechanism 33 to the fold flat or utility position may be achieved by continued actuation of remote switch 17, which may drive electric motor 23, inducing a continued clockwise rotation of pinion drive gear 22 inducing continued counter-clockwise rotation of rotatable sector 21.
  • the user may bring seatback 13 and latch mechanism 33, to the occupant seating position by reverse actuation of remote switch 17.
  • the reverse actuation of remote switch 17 may reverse the rotation direction of electric motor 23, which may induce a counter-clockwise rotation of pinion drive gear 22.
  • pinion drive gear 22 may then rotate rotatable sector 21 in the clockwise direction.
  • the trailing edge of rotatable sector 21 when moving from occupant seating position to utility position may rotate into contact with stop stud 25.
  • rotatable sector 21 may then rotate latch mechanism 33 in a clockwise direction to the seating occupant position, whereby latch mechanism 33 may then relock, rotating latching cam 29 in a counter-clockwise direction thus sliding drive link 26 back to the down or locked position.
  • Fig. 5 discloses an exemplary embodiment of a seat structure comprising a cushion structure 43, a recliner mechanism system 20 and a back structure 41.
  • Mounting mechanism 39 may be rigidly attached to cushion structure 43.
  • Recliner mechanism system 20 may be rigidly attached to back structure 41.
  • the latch mechanism 33 includes a pair of parallel side plates sandwiching a conventional pawl, sector, cam device. When the shaft 31 rotates a corresponding cam rotates to disengage a pawl from a sector rigidly attached to the mounting bracket to thereby permit rotation movement of the latch mechanism and seat back with respect to the mounting bracket.
  • the recliner mechanism 20 may be configured for manual operation to adjust the recliner and the latch mechanism.
  • the latch cam 29 may be connected to a manually operated lever or cable.
  • a radial gap could be provided between sector 21 and the drive link 27 to allow the user to manually recline the seat back and also permit motor driven operation to move the seat back into the folded flat permit.
  • the arrangement would allow for manual adjustment of the seat back position for comfort and for power operation of the seat back to move to the folded or stowage position.
  • the position of the seat back may be changed without use of the motor.
  • a basically common design may be employed for both power and manual recliner mechanisms.
  • a power driven round recliner mechanism may be provided.
  • Fig. 6 discloses a vehicle seat recliner mechanism including a rotatable sector 21, a pinion drive gear 22, an electric motor 23, a stop stud 25, a round recliner mechanism 53, a release lever 51, a clock spring 35, a mounting mechanism 39, a remote switch 17 and a seat-back pivot axis 19.
  • actuation of remote switch 17 may rotate recliner mechanism 53 (and seat back) from the occupant seating position to the utility or fold flat position.
  • Actuation of remote switch 17 may induce electric motor 23 to rotate pinion drive gear 22 in a counter-clockwise direction which is coupled to rotatable sector 21 through gear mesh, thereby causing rotation of the rotatable sector 21 in a clockwise direction.
  • Rotatable sector 21 may be attached to mechanism 53, and may be free to rotate about seat-back pivot axis 19.
  • Rotatable sector 21 may rotate in clockwise fashion into contact with release lever 51, which may then rotate release lever 51 to a predetermined angle which may release recliner mechanism 53.
  • recliner mechanism 53 Once recliner mechanism 53 is unlocked and free to rotate, the mechanism may rotate in the clockwise direction induced by torque of clock spring 35. The rotation causes the stop stud 25, which is rigidly fixed to mechanism 53, to make contact with rotatable sector 21. Continued actuation of remote switch 17 may continue to rotate mechanism 53 to cause the seat back to move to the fold flat position.
  • Reverse actuation of remote switch 17 may rotate mechanism 53 and the seat back from the fold flat position to the occupant seating position.
  • Reverse actuation of remote switch 17 may induce electric motor 23 to rotate pinion drive gear 22 in a clockwise direction which may in turn rotate rotatable sector 21 in a counterclockwise direction.
  • the torque may be transferred from rotatable sector 21 into stop stud 25, allowing for counter-clockwise rotation of mechanism 53 back to the occupant seating position.
  • Rotatable sector 21 rotates free of release lever 51, allowing for mechanism 53 to lock in the occupant seating position.
  • release lever 51 may be operated manually to unlatch and adjust the recliner mechanism 53 and seat back position.
  • lever 51 is operated manually and moved to a predetermined angle to release mechanism 53.
  • the lever 51 may be integrated or attached to a suitable lever or cable that is easily gripped by the occupant of the seat or operator of the vehicle.
  • the mechanism and seat back may rotate in the clockwise direction induced by torque of clock spring 35.
  • the seat may be folded flat or stowed without operation of the motor.
  • a catch or latch may be provided to lock the seat back in the stowed position.
  • the seat back may be returned to the normal upright position by the operating manually lifting the seat to oppose the force of the clock spring.
  • references to "front,” “rear,” “top,” and “base” in this description are merely used to identify various elements as are oriented in the Figures, with “front” and “rear” being relative to the environment in which the device is provided.
  • the term “coupled” means the joining of two members directly or indirectly to one another. Such joining may be stationary or moveable in nature. Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another. Such joining may be permanent in nature or may be removable or releasable in nature.

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  • 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

La présente invention concerne un système de siège de véhicule comportant une partie assise et un dossier de siège, le dossier est interdit de rotation par un mécanisme de verrouillage (33) connecté au dossier. Le mécanisme de verrouillage (33) est configuré pour être dégagé pour permettre la rotation du dossier vers une position à plat adjacente à la partie assise. Le système de siège comporte un moteur (23) pour à la fois libérer le mécanisme de verrouillage (33) et entraîner la rotation du dossier.
PCT/US2008/050045 2007-01-03 2008-01-02 Siège de véhicule WO2008083405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87807307P 2007-01-03 2007-01-03
US60/878,073 2007-01-03

Publications (1)

Publication Number Publication Date
WO2008083405A1 true WO2008083405A1 (fr) 2008-07-10

Family

ID=39243698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/050045 WO2008083405A1 (fr) 2007-01-03 2008-01-02 Siège de véhicule

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WO (1) WO2008083405A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2994134A1 (fr) * 2012-08-03 2014-02-07 Faurecia Sieges Automobile Siege de vehicule comportant une partie reglable motorisee, unite electrique de commande de vehicule automobile
WO2014026752A1 (fr) * 2012-08-14 2014-02-20 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Structure de siège comportant deux dispositifs d'entraînement servant à faire pivoter deux parties réglables
WO2020018986A1 (fr) * 2018-07-20 2020-01-23 Magna Seating Inc. Mécanisme de commande électrique à libération de verrou intégrée et à neutralisation manuelle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033250A2 (fr) * 2002-10-04 2004-04-22 Johnson Controls Technology Company Mecanisme de fauteuil inclinable
US20050248302A1 (en) * 2004-05-07 2005-11-10 Garland Nathan L Powered remote release actuator for a seat assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033250A2 (fr) * 2002-10-04 2004-04-22 Johnson Controls Technology Company Mecanisme de fauteuil inclinable
US20050248302A1 (en) * 2004-05-07 2005-11-10 Garland Nathan L Powered remote release actuator for a seat assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2994134A1 (fr) * 2012-08-03 2014-02-07 Faurecia Sieges Automobile Siege de vehicule comportant une partie reglable motorisee, unite electrique de commande de vehicule automobile
DE102013012539B4 (de) * 2012-08-03 2014-11-27 Faurecia Sièges d'Automobile Fahrzeugsitz mit motorisch einstellbarem Abschnitt, sowie elektonische Steuereinheit für einen Fahrzeugsitz
US9344013B2 (en) 2012-08-03 2016-05-17 Faurecia Sièges d'Automobile Vehicle seat comprising a motorized adjustable part, electric control unit of a motor vehicle
WO2014026752A1 (fr) * 2012-08-14 2014-02-20 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Structure de siège comportant deux dispositifs d'entraînement servant à faire pivoter deux parties réglables
WO2020018986A1 (fr) * 2018-07-20 2020-01-23 Magna Seating Inc. Mécanisme de commande électrique à libération de verrou intégrée et à neutralisation manuelle

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