Vehicle seat stow release system and method

• US 8,282,150 B2
• Filed: 03/03/2009
• Issued: 10/09/2012
• Est. Priority Date: 03/03/2008
• Status: Expired due to Fees

• Current Assignee: Adient Luxembourg Holding S..R.L.
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Clor, Michael B., Neaga, Dan, Malusev, Aleksandar, Dagcioglu, M. Omer
• Primary Examiner(s): Dayoan, Glenn
• Assistant Examiner(s): ROMAIN, PINEL E
• Application Number:
  US12/812,469
• Publication Number:
  US 20110031775A1
• Time in Patent Office: 1,316 Days
• Field of Search: 296/65.05, 296/65.08, 296/65.09, 296/65.12, 296/65.01, 297/335, 297/15, 297/378.12, 745/005
• US Class Current: 296/65.09
• 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 2/3079 in a recess
• CPC Class Codes: Y10T 74/20402 Flexible transmitter [e.g., Bowden cable]

Abstract

A fold flat seat and more specifically a cable control system for engaging and disengaging various actuators and latches to allow a vehicle seat to move between an upright position and various stowed or folded positions, as well as a method for stowing a vehicle seat with a single motion by the operator of the vehicle.

Claims

1. A cable release system for a vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said cable release system comprising:

a first actuator; and

a junction box having single a lever arm coupled to a first cable and a second cable and wherein said lever arm is pivotably coupled to said junction box, said lever arm having a lateral extent with a first end and a second end and a pivot axis wherein said pivot axis is offset from the center of the lateral extent and wherein said

first cable extends between said junction box and said first actuator and wherein said first cable is coupled to said lever arm proximate to said first end and wherein said

second cable extends between said junction box and the latch mechanism and wherein said second cable is coupled to said lever proximate to said second end, and wherein said junction box includes a spring coupled to said second cable.

5. The cable release system of claim 1 wherein said first actuator includes a strap coupled to said first cable.

10. The cable release system of claim 1 further including an auto recline release cable extending from the recline mechanism.

11. The cable release system of claim 10 wherein said auto recline release cable includes a handle disposed between said recline mechanism and a terminal end.

2. A cable release system for a vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said cable release system comprising:

a first actuator;

a junction box having a lever arm pivotably coupled to said junction box, said lever arm having a lateral extent with a first end and a second end and a pivot axis wherein said pivot axis is offset from the center of the lateral extent;

a first cable extending between said junction box and said actuator and wherein said first cable is coupled to said lever arm proximate to said first end;

second cable extending between said junction box and the latch mechanism and wherein said second cable is coupled to said lever proximate to said second end; and

wherein said junction box includes a spring coupled to said second cable.

3. The cable release system of claim 2 wherein said spring applies a biasing force to said lever arm.

4. The cable release system of claim 3 wherein said junction box includes an outer shell having a first cable entrance for said first cable and a second cable entrance for said second cable and wherein said biasing force at rest disposes said lever arm closer to second cable entrance than said first cable entrance.

6. A cable release system for a vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said cable release system comprising:

a first actuator;

a junction box having a lever arm pivotably coupled to said junction box, said lever arm having a lateral extent with a first end and a second end and a pivot axis wherein said pivot axis is offset from the center of the lateral extent;

a first cable extending between said junction box and said actuator and wherein said first cable is coupled to said lever arm proximate to said first end;

second cable extending between said junction box and the latch mechanism and wherein said second cable is coupled to said lever proximate to said second end; and

a leg fold cable system extending directly between the at least one leg and the pivot attachment.

7. A cable release system for a vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said cable release system comprising:

a first actuator;

a junction box having a lever arm pivotably coupled to said junction box, said lever arm have a lateral extent and a pivot axis wherein said pivot axis is offset from the center of the lateral extent;

a leg fold cable system extending between the at least one leg and the pivot attachment;

a first cable extending between said junction box and said actuator; and

a second cable extending between said junction box and the latch mechanism and wherein said leg fold cable includes a spring disposed between a first cable and a second cable and wherein said first cable is coupled to said at least one leg and the second cable is coupled to the at least one pivot attachment.

8. The cable release system of claim 7 wherein said leg fold cable is configured to apply a force to the at least one leg in the direction of folding the leg against the lower seat as the lower seat is pivoted in a first direction about the pivot attachment.

9. The cable release system of claim 8 wherein said leg fold cable is configured to have a length that after a specified angle of rotation in said first direction, the force from said rotation causing said spring to extend.

12. A cable release system for a vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said cable release system comprising:

a first actuator;

a junction box having a lever arm pivotably coupled to said junction box, said lever arm have an integral lateral extent and a pivot axis wherein said pivot axis is offset from the center of the lateral extent;

a first cable extending between said junction box and said actuator and coupled to said lever arm within said integral lateral extent;

a second cable extending between said junction box and the latch mechanism and coupled to said lever arm within said integral extent; and

an auto recline release cable extending from the recline mechanism, said auto recline release cable including a handle disposed between said recline mechanism and a terminal end and wherein said recline release cable includes a terminal cable extending between said terminal end and said handle, and a recline cable extending between said handle and the recline mechanism.

13. A method of folding a vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said method comprising:

pulling a first actuator to release the latch mechanism;

pulling the seat rearward about the pivot attachment with said first actuator and wherein as said seat is pulled rearward, a recline release cable is automatically pulled by the seat'"'"'s movement;

continue pulling said seat rearward until said recline release cable disengages the recline release mechanism and the lower seat half and the upper seat half fold together and wherein as said seat is pulled rearward, a leg fold cable having a pivot end coupled to said pivot attachment and a leg end coupled to said legs stays stationary at said pivot end while said leg end extends in an arcuate motion about said pivot attachment and causes said legs to fold inward; and

release said first actuator and placing said seat within a seat well on the vehicle.

14. The method of claim 13 further including the steps of:

lifting the seat from the seat well;

rotating the folded seat about the pivot attachment;

engaging the leg latches;

pulling a second actuator to release the recline mechanism;

pulling the seat back to an upright position while pulling the second actuator; and

releasing the second actuator to lock the recline mechanism.

15. A method of folding a vehicle seat into a seat well on a vehicle with a single motion, said vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism in a latched position with the seat is in an upright position and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said method comprising:

by a single action, pulling a first actuator in a direction away from the rear of the upper seat, causing the latch mechanism to release and allowing the seat to pivot rearward about the pivot attachment and wherein as the seat pivots about the pivot attachment, a recline release cable is automatically pulled by the seat'"'"'s movement and disengages the recline release mechanism causing the lower seat half and the upper seat half fold together into a clamshell position and wherein as the seat is pulled rearward, a leg fold cable extending between said pivot attachment and said legs automatically causes said legs to fold inward; and

upon releasing the first actuator, the seat is configured to fit within a seat well on the vehicle.

16. The method of claim 15 wherein upon releasing the first actuator, the seat automatically falls into the seat well and into a fold flat position.

17. A cable release system for a vehicle seat having an upper seat and a lower seat pivotably coupled together with a recline mechanism and wherein said lower seat includes at least one leg and at least one latch mechanism and wherein said lower seat is pivotably coupled to a vehicle with a pivot attachment, said cable release system comprising:

a first actuator;

a junction box having a unitary lever arm pivotably coupled to said junction box;

a first cable coupled to said lever arm extending between said lever arm and said actuator; and

a second cable coupled to said lever arm and extending between said lever arm and the latch mechanism, and wherein said lever arm includes a lateral extent between said first and second coupled cables and wherein said pivot axis is offset from the center of said lateral extent.