Tire device
First Claim
1. A tire device, comprising:
- a vibration power generating element that is arranged inside a tire and outputs a voltage corresponding to a time variation of a vibration generated in a tread of the tire;
a signal processing unit that is arranged inside the tire and performs signal processing on the voltage outputted from the vibration power generating element; and
a transmitter that is arranged inside the tire and sends data, which is prepared by signal-processing the output voltage, in the signal processing unit to an external device arranged outside the tire,wherein;
the signal processing unit and the transmitter are driven by power generated in the vibration power generating element;
the vibration power generating element includes a fixed substrate fixed to the tread and a movable substrate arranged opposite to the fixed substrate and movable in a tire tangential direction with respect to the fixed substrate, and generates power with a change in a position of the movable substrate with respect to the fixed substrate; and
the movable substrate is supported by combining two or more types of springs each having a different spring constant.
1 Assignment
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Accused Products
Abstract
A tire device includes a vibration power generating element, a signal processing unit, and a transmitter. The vibration power generating element is arranged inside a tire and outputs a voltage corresponding to a time variation of a vibration generated in a tread of the tire. The signal processing unit is disposed inside the tire and performs signal processing on the voltage outputted from the vibration power generating element. The transmitter is arranged inside the tire and sends data subjected to the signal processing in the signal processing unit to a device provided outside the tire. The signal processing unit and the transmitter are driven by power generated in the vibration power generating element.
8 Citations
9 Claims
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1. A tire device, comprising:
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a vibration power generating element that is arranged inside a tire and outputs a voltage corresponding to a time variation of a vibration generated in a tread of the tire; a signal processing unit that is arranged inside the tire and performs signal processing on the voltage outputted from the vibration power generating element; and a transmitter that is arranged inside the tire and sends data, which is prepared by signal-processing the output voltage, in the signal processing unit to an external device arranged outside the tire, wherein; the signal processing unit and the transmitter are driven by power generated in the vibration power generating element; the vibration power generating element includes a fixed substrate fixed to the tread and a movable substrate arranged opposite to the fixed substrate and movable in a tire tangential direction with respect to the fixed substrate, and generates power with a change in a position of the movable substrate with respect to the fixed substrate; and the movable substrate is supported by combining two or more types of springs each having a different spring constant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification