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Rear door safety lock arrangement

  • US 4,652,768 A
  • Filed: 07/02/1985
  • Issued: 03/24/1987
  • Est. Priority Date: 07/07/1984
  • Status: Expired due to Fees
First Claim
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1. A safety and locking arrangement for preventing unauthorized interior unlocking of at least one vehicle door, comprising:

  • first switching means for alternately connecting a first voltage potential to a first or second conductive line;

    first motor means, connected in series with a second voltage potential, for operating a door lock;

    second switching means connected between said first and second conductive lines and said first motor means for connecting said first motor means by said first conductive line to said first switching means only when said door is unlocked, to activate said first motor means to lock the door in response to actuation of said first switching means, and for connecting said first motor means by said second conductive line to said first switching means only when said door is locked, to activate said motor means to unlock the door in response to actuation of said first switching means; and

    indicator means connected in parallel with said first switching means and between said first voltage potential and said second conductive line, for indicating when said door is locked and unlocked.

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