Electronic signal device for a set of pneumatic tires
First Claim
1. An electronic signal device for a set of pneumatic tires of a vehicle, comprising:
- a plurality of pressure gauges respectively attached to the pneumatic tires, each said pressure gauge including a cap-like casing;
a hollow adaptor threaded to the cap-like casing and having a central finger piece for opening the inflating valve of the tire;
a disc member secured inside the hollow adaptor and having a projection extending in a direction opposite the finger piece;
a hollow screw member for securing the disc member to the hollow adaptor and having an annular end serving as an electrical contact surface;
a signal transmitting unit electrically connected to the electrical contact surface of the hollow screw member and mounted inside the cap-like casing;
a cell means electrically connected to the signal transmitting unit; and
means for electrically connecting the cell means to the electrical contract surface of the hollow screw member, which includes a conductive plate member to contact the electrical contact surface and a coil spring having one end connected to the conductive plate and the other end electrically connected to the cell means;
said signal transmitting unit transmitting through the air a binary code signal unique to that gauge when said tire to which the gauge is attached is deflated below a predetermined proper pressure;
a remote receiver circuit for receiving the binary code signal transmitted by said signal transmitting unit of said pressure gauges; and
display means located adjacent the driver of the vehicle having a display plate with a figure depicting a top view of the vehicle on said display plate, and a plurality of light emitting diodes electrically connected to said receiving circuit and arranged on said figure in such a manner that each said light emitting diode corresponds to a specific tire of the vehicle and its relative position with respect to the vehicle body whereby when a binary code signal is received from a pressure gauge by the receiver circuit it lights up the diode on the figure of that tire to which that gauge is attached, said display means including a sound alarm unit having a buzzer therein electrically coupled to said receiver circuit and activated whenever a light emitting diode is activated.
1 Assignment
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Accused Products
Abstract
An electronic signal device for a set of pneumatic tires of a vehicle includes a plurality of pressure gauges, each respectively attached to the pneumatic tires, each pressure gauge having a cap unit which houses a switching unit responsive to the pressure in the respective tire and a signal transmitting unit electrically connected to the switching unit and activated when pressure in the tire is deficient. Each tire is represented by a binary code which is transmitted to a receiver circuit when said tire is deflated below a predetermined proper pressure. The receiver circuit is found inside the driver room of the vehicle and is electrically connected to a display means. The display means has a display plate with a figure of the vehicle on said display plate, and a plurality of light emitting diodes electrically connected to the receiver circuit, arranged on the figure in such a manner that each light emitting diode corresponds to a specific tire and the relative position of the tire with respect to the vehicle body. The display means further includes an elongated casing which houses the display plate and is rotatably mounted to a support member. A sound alarm unit, similarly connected to the receiving circuit, sounds whenever the tire is deflated below a predetermined proper pressure.
35 Citations
12 Claims
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1. An electronic signal device for a set of pneumatic tires of a vehicle, comprising:
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a plurality of pressure gauges respectively attached to the pneumatic tires, each said pressure gauge including a cap-like casing;
a hollow adaptor threaded to the cap-like casing and having a central finger piece for opening the inflating valve of the tire;
a disc member secured inside the hollow adaptor and having a projection extending in a direction opposite the finger piece;
a hollow screw member for securing the disc member to the hollow adaptor and having an annular end serving as an electrical contact surface;
a signal transmitting unit electrically connected to the electrical contact surface of the hollow screw member and mounted inside the cap-like casing;
a cell means electrically connected to the signal transmitting unit; and
means for electrically connecting the cell means to the electrical contract surface of the hollow screw member, which includes a conductive plate member to contact the electrical contact surface and a coil spring having one end connected to the conductive plate and the other end electrically connected to the cell means;
said signal transmitting unit transmitting through the air a binary code signal unique to that gauge when said tire to which the gauge is attached is deflated below a predetermined proper pressure;a remote receiver circuit for receiving the binary code signal transmitted by said signal transmitting unit of said pressure gauges; and display means located adjacent the driver of the vehicle having a display plate with a figure depicting a top view of the vehicle on said display plate, and a plurality of light emitting diodes electrically connected to said receiving circuit and arranged on said figure in such a manner that each said light emitting diode corresponds to a specific tire of the vehicle and its relative position with respect to the vehicle body whereby when a binary code signal is received from a pressure gauge by the receiver circuit it lights up the diode on the figure of that tire to which that gauge is attached, said display means including a sound alarm unit having a buzzer therein electrically coupled to said receiver circuit and activated whenever a light emitting diode is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification