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Device for monitoring the state of radial deformation of a tyre

  • US 8,714,002 B2
  • Filed: 01/18/2011
  • Issued: 05/06/2014
  • Est. Priority Date: 01/18/2011
  • Status: Expired due to Fees
First Claim
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1. A device (51) for monitoring the state of inflation of vehicle wheel tyres, the wheels comprising a rim (100) and a respective tyre (101) delimiting a hollow space (103) inside the wheel from the outside environment (104), the device (51) comprising:

  • a first end (53) equipped with a self-closing valve connectable to means for inflating and deflating the tyre (101);

    a second end (99) sealingly connectable on a hole (102) in the rim (100) of the wheel;

    a cavity (62) interposed between the two ends (53) and (99) and sealingly delimited by a wall (81) which is integral with a body (52) of the device and by an elastically deformable partition (203) having an inside face subjected to the pressure inside the tyre and an outside face subjected to the atmospheric pressure of the outside environment, characterized in that it, comprises;

    means (221) for generating and transmitting electromagnetic signals and a power source (215);

    a switch (208) mounted in the cavity (62) and configured to drive the means (221) for generating and transmitting electromagnetic signals,where the deformable partition (203) comprises a contact element (222) operating on the switch (208) in such a way as to activate it in response to a deformation of the partition (203) itself.

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