Seat having tiltable seat cushion
AssigneeLear Corporation
InventorsPeter Robert McCulloch, Mark A. Farquhar
Life of this patent
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Abstract
A seat is disclosed herein. The seat includes a seat cushion frame assembly. The seat also includes a seat cushion mounted on the seat cushion frame assembly for pivoting movement about a cushion pivoting axis. The seat also includes a cushion lock operably disposed to selectively lock the seat cushion frame assembly and the seat cushion relative to one another and thereby prevent the pivoting movement. The cushion lock defines a plurality of locked positions such that the seat cushion is positionable in a plurality of different orientations relative to the seat cushion frame assembly.
Claims18
A seat comprising:
- a seat cushion frame assembly;
- a seat cushion mounted on said seat cushion frame assembly for pivoting movement about a cushion pivoting axis;
- a cushion lock operably disposed to selectively lock said seat cushion frame assembly and said seat cushion relative to one another and thereby prevent the pivoting movement, wherein said cushion lock defines a plurality of locked positions such that said seat cushion is positionable in a plurality of different orientations relative to said seat cushion frame assembly;
- a torsion bar engaged with both of said seat cushion frame assembly and said seat cushion;
- and
- a ratchet assembly having a first locking member defining a first set of teeth, and a second locking member defining a second set of teeth, wherein said second locking member is moveable relative to said first locking member between a first position wherein said first and second sets of teeth are meshed together and a second position wherein said first and second sets of teeth are spaced from one another;
- wherein said first locking member includes first and second cam portions;
- and
- wherein said second locking member includes a first cam follower portion operable to be driven in movement by said first cam portion and a second cam follower portion operable to be driven in movement by said second cam portion.
A seat comprising:
- a seat cushion frame assembly;
- a seat cushion mounted on said seat cushion frame assembly for pivoting movement about a cushion pivoting axis;
- and
- a cushion lock operably disposed to selectively lock said seat cushion frame assembly and said seat cushion relative to one another and thereby prevent the pivoting movement, wherein said cushion lock defines a plurality of locked positions such that said seat cushion is positionable in a plurality of different orientations relative to said seat cushion frame assembly;
- a torsion bar engaged with both of said seat cushion frame assembly and said seat cushion;
- and
- a ratchet assembly having a first locking member defining a first set of teeth, and a second locking member defining a second set of teeth;
- wherein said second locking member is moveable relative to said first locking member between a first position, wherein said first and second sets of teeth are meshed together, and a second position wherein said first and second sets of teeth are spaced from one another;
- and
- wherein one of said first and second locking members is directly connected to said torsion bar.
Dependencies are inferred from the claim text.