Head restraint for automotive vehicle
First Claim
Patent Images
1. A head restraint system for an automotive vehicle, comprising:
- a plurality of mounting posts extending generally vertically from a seatback, with each of said posts having a lower base portion with a longitudinal axis and an upper eccentric portion;
a head rest carried upon said eccentric portion of said posts;
a first drive mechanism, coupled to said base portion of each of said mounting posts, for extending and retracting said posts, so as to raise and lower said head rest;
a second drive mechanism for rotating said posts about said longitudinal axes, so as to move said eccentric portions and said head rest fore and aft and a controller for operating said first drive mechanism and said second drive mechanism.
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Abstract
A head restraint system for an automotive vehicle seat includes a headrest carried upon eccentric mounting posts which may be extended telescopically from a seatback and rotated about their base axes so as to reposition the headrest not only vertically, but also horizontally. A sensor mounted in the headrest feeds back the location of an occupant'"'"'s head to a system controller.
80 Citations
14 Claims
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1. A head restraint system for an automotive vehicle, comprising:
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a plurality of mounting posts extending generally vertically from a seatback, with each of said posts having a lower base portion with a longitudinal axis and an upper eccentric portion; a head rest carried upon said eccentric portion of said posts; a first drive mechanism, coupled to said base portion of each of said mounting posts, for extending and retracting said posts, so as to raise and lower said head rest; a second drive mechanism for rotating said posts about said longitudinal axes, so as to move said eccentric portions and said head rest fore and aft and a controller for operating said first drive mechanism and said second drive mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for adjusting a passenger headrest in an automotive vehicle, comprising the steps of:
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activating a head proximity sensor located in said headrest; activating a first drive mechanism to adjust the vertical position of the headrest based upon a signal from said proximity sensor; and activating a second drive mechanism to adjust the horizontal position of the headrest based upon said signal from said proximity sensor, wherein said first drive mechanism telescopically extends a plurality of headrest mounting posts in a generally vertical direction, and said second drive mechanism causes said mounting posts to rotate such that eccentrics incorporated in said headrest mounting posts reposition the headrest in a horizontal direction.
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14. A seat for an automotive vehicle, comprising:
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a seat frame; a seat cushion mounted to said seat frame; a seatback mounted to said seat frame; a plurality of mounting posts extending generally vertically from said seatback, with each of said posts having a lower base portion with a longitudinal axis and an upper eccentric portion; a head rest mounted to said eccentric portion of said posts; a first drive mechanism, coupled to said base portion of each of said mounting posts, for extending and retracting said posts, so as to raise and lower said head rest; a second drive mechanism for rotating said posts about said longitudinal axes, so as to move said eccentric portions and said head rest fore and aft and a sensor for determining a position of a passenger'"'"'s head with respect to said head rest, and a controller for operating said first drive mechanism and said second drive mechanism so as to adjust the position of said head rest to establish a predetermined spatial relationship between the head rest and the passenger'"'"'s head.
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Specification