Tire information acquisition device having first and second bands fixing a sensor unit to a rim
Provided is a tire information acquisition device that includes a sensor unit including a sensor that acquires tire information, a first band that is for fixing the sensor unit ( 1 ) to a rim (R) and has an adjustable band circumferential length by fastening another end reversibly with a fastening portion provided to one end, and at least one second band that fastens the sensor unit and the first band integrally.
1. A tire information acquisition device, comprising:
a sensor unit including a sensor configured to acquire tire information;
a first band for fixing the sensor unit to a rim, the first band having an adjustable band circumferential length by fastening another end reversibly with a fastening portion provided to one end; and
at least one second band configured to fasten the sensor unit and the first band integrally.
2. The tire information acquisition device according to claim 1 , wherein the first band has a width falling within a range from 5 mm to 50 mm.
3. The tire information acquisition device according to claim 2 , wherein, before a state of mounting to the rim, a band length of the first band falls within a range from 1800 mm to 2500 mm, and the first band has a structure in which the other end is cuttable.
4. The tire information acquisition device according to claim 3 , wherein the first band has breathability.
5. The tire information acquisition device according to claim 4 , wherein the sensor unit is arranged between the first band and the rim.
6. The tire information acquisition device according to claim 5 , wherein a groove or a hole that allows the second band to pass therethrough is formed in a housing forming the sensor unit, and the groove or the hole accommodates a part of or an entirety of a fastening portion of the second band.
7. The tire information acquisition device according to claim 6 , wherein at least parts of a band body and the fastening portion of the first band, which are held in contact with the rim, are formed of a non-metal material.
8. The tire information acquisition device according to claim 7 , wherein a base configured to retain the sensor unit is inserted between the second band and the rim, and the base has thermal conductivity of 1.0 W/mK or less.
9. The tire information acquisition device according to claim 8 , wherein at least a part of the base, which is held in contact with the rim, has a slippage prevention portion.
10. The tire information acquisition device according to claim 1 , wherein, before a state of mounting to the rim, a band length of the first band falls within a range from 1800 mm to 2500 mm, and the first band has a structure in which the other end is cuttable.
11. The tire information acquisition device according to claim 1 , wherein the first band has breathability.
12. The tire information acquisition device according to claim 1 , wherein the sensor unit is arranged between the first band and the rim.
13. The tire information acquisition device according to claim 1 , wherein a groove or a hole that allows the second band to pass therethrough is formed in a housing forming the sensor unit, and the groove or the hole accommodates a part of or an entirety of a fastening portion of the second band.
14. The tire information acquisition device according to claim 1 , wherein at least parts of a band body and the fastening portion of the first band, which are held in contact with the rim, are formed of a non-metal material.
15. The tire information acquisition device according to claim 1 , wherein a base configured to retain the sensor unit is inserted between the second band and the rim, and the base has thermal conductivity of 1.0 W/mK or less.
16. The tire information acquisition device according to claim 15 , wherein at least a part of the base, which is held in contact with the rim, has a slippage prevention portion.
17. The tire information acquisition device according to claim 1 , wherein the sensor unit, including the sensor, is arranged inward of the first band in a tire radial direction.