Electronic Device and Tyre

• US 20090009312A1
• Filed: 03/13/2006
• Published: 01/08/2009
• Est. Priority Date: 03/14/2005
• Status: Active Grant

• Current Assignee: Bridgestone Corporation
• Original Assignee: Bridgestone Corporation
• Inventors: Toyofuku, Masanobu
• Granted Patent: US 7,642,905 B2
• Time in Patent Office: Days
• US Class Current: 340/447
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60C 23/0494 Valve stem attachments positioned inside the tyre chamber

Abstract

An electronic device 40 includes a transmitter substrate 43 for generating information to be measured by a sensor 50 arranged in a partitioned space 10 which is partitioned by a tyre 1 and a rim wheel 2, a signal line 45 extended from the transmitter substrate 43 to outside of the partitioned space 10 and passing through an inner side of an air valve 30 provided at the rim wheel 2, the signal line 45 being formed by a core wire 45a made of a conductor and a coaxial cable 45b covering that core wire 45a, and an antenna 47 for transmitting radio waves containing the information (such as information of the tyre 1) generated by that transmitter substrate 43, the antenna 47 being connected to the signal line 45 and positioned outside the air valve 30.

Claims

1. An electronic device, comprising:

a generation unit for generating information to be measured by a sensor arranged in a partitioned space which is partitioned by a tyre and a rim wheel,

a signal line extended from the generation unit to outside of the partitioned space and passing through an inner side of an air valve provided at the rim wheel, the signal line being formed by a core wire made of a conductor and a coaxial cable covering the core wire, and

an antenna for transmitting radio waves containing the information generated by the generation unit, the antenna being connected to the signal line and positioned outside the air valve.

2. An electronic device, comprising:

a generation unit for generating information to be measured by a sensor arranged in a partitioned space which is partitioned by a tyre and a rim wheel,

a signal line extended from the generation unit through the rim wheel to outside of the partitioned space, the signal line being formed by a core wire made of a conductor and a coaxial cable covering the core wire, and

an antenna for transmitting radio waves containing the information generated by the generation unit, the antenna being connected to the core wire and positioned outside the partitioned space.

3. The electronic device as described in claim 2, wherein the electronic device comprises an antenna guard covering the antenna.

4. A tyre on which at least an electronic device capable of transmitting information by radio is provided, the electronic device comprising:

a generation unit for generating information to be measured by a sensor arranged in a partitioned space which is partitioned by the tyre and a rim wheel,

a signal line extended from the generation unit to outside of the partitioned space and passing through an inner side of an air valve provided at the rim wheel, the signal line being formed by a core wire made of a conductor and a coaxial cable covering the core wire, and

an antenna for transmitting radio waves containing the information generated by the generation unit, the antenna being connected to the signal line and positioned outside the air valve.

5. A tyre on which at least an electronic device capable of transmitting information by radio is provided, the electronic device comprising:

a generation unit for generating information to be measured by a sensor arranged in a partitioned space which is partitioned by the tyre and a rim wheel,

a signal line extended from the generation unit through the rim wheel to outside of the partitioned space, the signal line being formed by a core wire made of a conductor and a coaxial cable covering the core wire, and

an antenna for transmitting radio waves containing the information generated by the generation unit, the antenna being connected to the core wire and positioned outside the partitioned space.

6. The tyre as described in claim 5, wherein the type comprises an antenna guard covering the antenna.