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Seat belt warning device

  • US 6,239,695 B1
  • Filed: 03/06/2000
  • Issued: 05/29/2001
  • Est. Priority Date: 08/28/1997
  • Status: Expired due to Term
First Claim
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1. A seat belt warning device, comprising:

  • a sitting detection switch adapted to be in an on-state when a person sits and in an off-state when a person is not sitting, said sitting detection switch including a set of first electrodes disposed on a first film layer, a set of second electrodes disposed on a second film layer, and a set of adhesive members located between adjacent pairs of the first electrodes and adjacent pairs of the second electrodes and contacting both the first and second film layers;

    a fastening detection switch connected to the sitting detection switch in series, and adapted to be in an on-state when a seat belt is not fastened and in an off-state when the seat belt is fastened; and

    a warning member connected to the sitting detection switch and the fastening detection switch in series and supplied with electric current in the on-state of the sitting detection switch and the on-state of the fastening detection switch to issue a warning.

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