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Three point lock mechanism

  • US 5,911,763 A
  • Filed: 01/12/1998
  • Issued: 06/15/1999
  • Est. Priority Date: 01/12/1998
  • Status: Expired due to Term
First Claim
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1. A three point lock mechanism for a hinged panel, comprising:

  • a central deadbolt lock set having a rotary shaft with a rotational axis, and driving a central jamb deadbolt;

    an actuator plate having a center affixed to said rotary shaft of said deadbolt lock set, with said actuator plate including an upper and a lower deadbolt actuating rod attachment point, wherein said upper deadbolt actuating rod attachment point is farther from said center of said actuating plate than said lower deadbolt actuating rod attachment point, for providing a larger moment arm for said upper deadbolt actuating rod than for said lower deadbolt actuating rod;

    an upper deadbolt actuating rod and a lower deadbolt actuating rod, each having a plate connecting end pivotally affixed to said upper and said lower deadbolt actuating rod attachment point of said actuator plate;

    an upper deadbolt and a lower deadbolt, with said upper and said lower deadbolt each including a pivotal deadbolt actuating arm; and

    said upper and said lower deadbolt actuating rod each having a distal end respectively connected to said actuating arm of said upper and said lower deadbolt.

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