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SIGNAL TRANSMISSION DEVICE FOR TOWING VEHICLE

  • US 20090170347A1
  • Filed: 07/17/2008
  • Published: 07/02/2009
  • Est. Priority Date: 01/02/2008
  • Status: Active Grant
First Claim
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1. A signal transmission device for connection between a first electrical connector disposed at a truck-tractor of a towing vehicle and a second electrical connector disposed at a trailer of the towing vehicle for transmission of electric signals, the signal transmission device comprising:

  • first and second magnetic holders for attaching the truck-tractor and the trailer respectively;

    a third electrical connector mounted to the first magnetic holder for connecting the first electrical connector;

    a fourth electrical connector mounted to the second magnetic holder for connecting the second electrical connector;

    a stretchable coil tube; and

    a cable spirally inserted through the stretchable coil tube and provided with two ends electrically connected with the third and fourth electrical connectors respectively.

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