Actuation device for vehicle seats
AssigneeFaurecia Autositze GmbH
InventorsRalf Oberbeck, Frank Remmers
Life of this patent
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Abstract
A device to actuate a drive gear of an adjustment mechanism of a vehicle seat includes a stepped switching mechanism manually operable in two directions by means of a swiveling lever that is rotationally connected with the drive gear in order to rotate it. The rotational connection between the stepped switching mechanism and the drive gear is releasable to facilitate a greater range of seat back adjustment.
Claims19
A device to actuate a drive gear of an adjustment mechanism of a seat with a stepped switching mechanism manually operable in two directions by means of a swiveling lever that is rotationally connected with said drive gear in order to rotate it, comprising:
- a release mechanism providing a releasable rotational connection between said stepped switching mechanism and said drive gear such that when said release mechanism is activated, said drive gear is not in contact with any other gears and may rotate freely about a horizontal tilt axis.
An adjustment mechanism to rotate a seat back relative to a seat body about a horizontal tilt axis having a first position wherein said seat back may be rotated about said horizontal tilt axis and a second position wherein said seat back may rotate freely about said horizontal tilt axis, said adjustment mechanism comprising:
- a swing lever rotatably secured about a rotation axis to said seat body;
- a first gear rotatably mounted to said seat back;
- a second gear rotatably disposed about said rotation axis;
- a third gear rotatably disposed about said swing lever, said third gear in constant communication with said second gear;
- a swivel lever in communication with second gear;
- and
- an engagement mechanism operable between a first and a second position, whereby in said first position, said first, said second and said third gear are in communication with each other such that when said swivel lever is rotated in a first or a second direction, said seat back rotates in a first and a second direction respectively, and whereby in said second position, said engagement mechanism is in communication with said swivel lever such that when said swivel lever is rotated, said third gear is not in communication with said first gear and said seat back is freely rotatable about said horizontal tilt axis.
A seat mechanism to rotate a seat back relative to a seat body about a horizontal tilt axis comprising:
- a plurality of gears having a drive gear, the plurality of gears adapted to be in communication with each other;
- a swivel lever in communication with at least one of said gears;
- and
- an engagement mechanism in communication with said swivel lever such that when said swivel lever is rotated, said drive gear is not in communication with any of the other of said plurality of gears and whereby said seat back is freely rotatable about said horizontal tilt axis.
Dependencies are inferred from the claim text.