Powered remote release actuator for a seat assembly

• US 7,152,922 B2
• Filed: 06/22/2004
• Issued: 12/26/2006
• Est. Priority Date: 05/07/2004
• Status: Active Grant

• Current Assignee: JP Morgan Chase Bank, N.A. (JP Morgan Chase & Co)
• Original Assignee: Fisher Dynamics Corporation
• Inventors: Garland, Nathan L.
• Primary Examiner(s): Donovan, Lincoln
• Assistant Examiner(s): COLON SANTANA, EDUARDO
• Application Number:
  US10/874,155
• Publication Number:
  US 20050248302A1
• Time in Patent Office: 917 Days
• Field of Search: None
• US Class Current: 297/362.11
• CPC Class Codes: B60N 2/01583 locking on transversal elements on the vehicle floor or rail, e.g. transversal rods
• CPC Class Codes: B60N 2/02246 Electric motors therefor
• CPC Class Codes: B60N 2/0228 Hand-activated mechanical switches B60N2/0229 takes precedence
• CPC Class Codes: B60N 2/0296 Central command actuator to selectively switch on or engage one of several special purpose circuits or mechanisms
• CPC Class Codes: B60N 2/2352 with external pawls
• CPC Class Codes: B60N 2/3011 the back-rest being hinged on the cushion, e.g. "portefeuille movement"
• CPC Class Codes: B60N 2/305 the cushion being hinged on the vehicle frame
• CPC Class Codes: B60N 2/366 characterised by the locking device
• CPC Class Codes: B60N 2002/924 using electric or hydraulic energy
• CPC Class Codes: B60N 2205/40 Dual or redundant actuating means, e.g. backrest tilting can be actuated alternatively by a lever at the backrest or a lever in the luggage compartment

Abstract

A mechanism for a vehicle seat is includes a seat bottom supported by the vehicle and a seatback coupled to the seat bottom. The mechanism includes a first adjustment mechanism connected to the vehicle seat and operable between a locked position and an unlocked position and a first powered remote activation device coupled to the first adjustment mechanism. The first powered remote actuation device includes a motor and a transmission element operable to toggle the first adjustment mechanism into the unlocked position.

Claims

1. A mechanism for a vehicle seat including a seat bottom supported by the vehicle and a seatback coupled to the seat bottom, said mechanism comprising:

a manually operable first adjustment mechanism connected to the vehicle seat and operable between a locked position and an unlocked position, said first adjustment mechanism comprising a recliner mechanism connected between the seatback and seat bottom of the vehicle seat;

a second adjustment mechanism connected between the vehicle and the vehicle seat, said second adjustment mechanism comprising a floor-latch mechanism and operable between a locked position and an unlocked position; and

a powered remote activation device coupled to said first adjustment mechanism and said second adjustment mechanism, said powered remote activation device including a motor and a transmission element operable to toggle said first adjustment mechanism into said unlocked position and to toggle said second adjustment mechanism into said unlocked position after said first adjustment mechanism is toggled into said unlocked position.

2. The mechanism of claim 1, wherein said first adjustment mechanism is a latch mechanism.

3. The mechanism of claim 1, wherein said first adjustment mechanism is a combination floor-latch and recliner mechanism.

4. The mechanism of claim 1, wherein said second mechanism includes a kneel mechanism.

5. The mechanism of claim 4, wherein said floor-latch mechanism and said kneel mechanism are a combination floor-latch and kneel mechanism.

6. A mechanism for a vehicle seat having a seat bottom supported by the vehicle and a seatback pivotably connected to the seat bottom, comprising:

a first adjustment mechanism having locked and unlocked states and being connected to the vehicle seat to enable movement of the vehicle seat between a first position and a second position, said first adjustment mechanism including a first release mechanism having a release position and a non-release position and operable when actuated to said release position to transfer said first adjustment mechanism from said locked state when the vehicle seat is in said first position to said unlocked state wherein the vehicle seat is free to move between said first and second positions;

a second adjustment mechanism connected between the vehicle seat bottom and the vehicle to enable the vehicle seat bottom to move from a first orientation wherein the seat bottom is substantially horizontal to a second orientation wherein the seat bottom is substantially vertical, said second adjustment mechanism having locked state and an unlocked state and having a second release mechanism with a release position and a non-release position for transferring said second adjustment mechanism between said locked and unlocked states; and

a powered remote activation assembly comprising a motor and a first transmission device connected between said motor and said first release mechanism, said powered remote activation assembly being adapted to actuate said first release mechanism to its release position and unlock said first adjustment mechanism when the motor is operated in a first rotational direction to thereby permit movement of said vehicle seat from said first position to said second position, and to return said first release mechanism to its non-release position and thereby enable said first adjustment mechanism to transfer back to said locked state when the vehicle seat is returned to said first position;

wherein said powered remote activation assembly is adapted to return said first release mechanism to its non-release position a predetermined period of time after actuation of said first release mechanism to its release position; and

wherein said first adjustment mechanism is manually operable and connected between the seatback and seat bottom of the vehicle seat for permitting rotation of said seatback relative to said seat bottom, and further wherein said first position of said vehicle seat corresponds to said seatback in a substantially upright position and said second position of said vehicle seat corresponds to said seatback in a folded position.

7. The mechanism of claim 6 wherein said motor is operable in a second opposite rotational direction and further wherein said first release mechanism is returned to its non-release position by operating said motor in said second rotational direction.

8. The mechanism of claim 6 wherein said first transmission device comprises a cable connected at one end to said motor and at its other end to said first release mechanism.

9. The mechanism of claim 6 wherein said first adjustment mechanism includes biasing means for biasing said seatback toward said folded position.

10. The mechanism of claim 6 further including a second transmission device connected between said motor and said second release mechanism so that when said motor is operated in said first rotational direction said second release mechanism is actuated to its release position to unlock said second adjustment mechanism after actuation of said first release mechanism to its release position.

11. The mechanism of claim 10 wherein said second transmission device is connected between said first release mechanism and said second release mechanism.

12. The mechanism of claim 11 wherein said first release mechanism includes a rotatable handle member and further wherein rotation of said handle member to a first position actuates said first release mechanism to its release position to unlock said first adjustment mechanism and further rotation of said handle member to a second position actuates said second release mechanism to its release position to unlock said second adjustment mechanism.

13. The mechanism of claim 12 wherein said first transmission device comprises a cable connected at one end to said motor and at its other end to said first release mechanism.

14. The mechanism of claim 13 wherein said second transmission device comprises a link connected to said handle member and to said second release mechanism.

15. The mechanism of claim 10 wherein said second release mechanism is returned to its non-release position and thereby enable said second adjustment mechanism to transfer back to said locked state when said vehicle seat bottom is returned to said first orientation.

16. The mechanism of claim 15 wherein said powered remote activation assembly is further adapted to return said second release mechanism to its non-release position a second predetermined period of time after actuation of said second release mechanism to its release position.

17. The mechanism of claim 16 wherein said motor is operable in a second opposite rotational direction and further wherein said second release mechanism is returned to its non-release position by operating said motor in said second rotational direction.

18. The mechanism of claim 6 wherein said second adjustment mechanism includes biasing means for biasing said vehicle seat bottom toward said second orientation.

19. The method of operating a vehicle seat having a seat bottom supported by the vehicle and a seatback pivotably connected to the seat bottom by a first adjustment mechanism adapted in a locked state to secure the seatback in a substantially upright position and in an unlocked state to permit rotation of said seatback to a folded position and including a first release mechanism for transferring said first adjustment mechanism between said locked and unlocked states, and a second adjustment mechanism pivotably connecting the seat bottom to the vehicle, the second adjustment mechanism adapted in a locked state to secure the seat bottom to the vehicle in a substantially horizontal orientation and in an unlocked state to permit rotation of said seat bottom to a substantially vertical orientation and including a second release mechanism for transferring said second adjustment mechanism between said locked and unlocked states;

the method comprising the steps of;

providing a powered remote activation assembly comprising a motor, a first transmission device connected between the motor and said first release mechanism, and a second transmission device connected between the motor and said second release mechanism,

i) energizing said motor for a first period of time to drive said first transmission device in a first direction to actuate said first release mechanism and unlock said first adjustment mechanism;

ii) energizing said motor for a second period of time after said first period of time to drive said second transmission device in said first direction to actuate said second release mechanism and unlock said second adjustment mechanism;

iii) driving said first transmission device in a second direction opposite to said first direction a first predetermined period of time after performing step i) to deactuate said first release mechanism and enable said first adjustment mechanism to return to its locked state; and

iv) driving said second transmission device in a second direction opposite to said first direction a second predetermined period of time after performing step ii) to deactuate said second release mechanism and enable said second adjustment mechanism to return to its locked state.

20. The method of claim 19 wherein said step of providing a powered remote actuation assembly includes connecting a first transmission cable between said motor and said first release mechanism.

21. The method of claim 20 wherein said step of providing a powered remote actuation assembly further includes connecting a link between said first release mechanism and said second release mechanism.

22. The method of claim 21 wherein step i) is performed by energizing said motor in a first rotational direction for said first period of time and step ii) is performed by energizing said motor in said first rotational direction for said second period of time.

23. The method of claim 22 wherein steps iii) and iv) are performed by energizing said motor in a second opposite rotational direction for a third period of time sufficient to deactuate both of said first and second release mechanisms.

24. The method of claim 19 wherein step iv) is performed after step ii) and before step iii).