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Vehicular seat assembly having a cam driven self positioning head restraint

  • US 6,860,564 B2
  • Filed: 01/31/2002
  • Issued: 03/01/2005
  • Est. Priority Date: 01/31/2001
  • Status: Expired due to Fees
First Claim
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1. A seat assembly comprising:

  • a seat cushion extending between front and rear portions;

    a seat back having a front surface for supporting the back of an occupant seated on said seat cushion and extending between an upper portion and a lower portion operatively connected to said rear portion of said seat cushion for pivotal movement relative to said seat cushion between a plurality of reclined seating positions;

    a head restraint having a front surface for supporting the head of the occupant seated on said seat cushion, said head restraint pivotally coupled to said upper portion of said seat back for movement relative to said seat back between a plurality of angled head supporting positions; and

    a mechanism operatively interconnecting said head restraint and said seat back for providing automatic and continuous pivotal movement of said head restraint to one of said head supporting positions in response to pivotal adjustment of said seat back to one of said reclined seating positions, wherein said mechanism includes a cam plate fixedly secured to said seat cushion and having a cam slot formed therein and operatively interconnected with said head restraint for controlling said pivotal movement of said head restraint between said plurality of head supporting positions in response to movement of said seat back between said plurality of reclined seating positions and a control rod extending between a first end pivotally connected to said head restraint and a second end coupled with said cam slot for forcing said movement of said head restraint between said plurality of head supporting positions in response to movement of said seat back between said plurality of reclined seating positions.

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