| 摘要 |
The transmitting device used in the tire condition monitoring system includes a sensor having a plane sensor detecting face that senses tire information; a transmitter that wirelessly transmits the tire information; and a housing within which the sensor and the transmitter are provided, that includes an internal space in contact with the sensor detecting face of the sensor, and a ventilation hole that communicates with the internal space and the tire cavity region and that extends in a linear manner. An inside opening part of the ventilation hole is inclined with respect to the sensor detecting face, and, is provided on the wall surface of the internal space that extends parallel to the sensor detecting face. The angle ¸ between the extension direction of the ventilation hole extending from the internal space to the tire cavity region and the normal line direction of the sensor detecting face is not less than 10 degrees and not more than 120 degrees. |
