| 摘要 |
PROBLEM TO BE SOLVED: To enhance waterproofness in an inside of a constitutive component storage casing, while securing an air discharge passage in a casing for storing constitutive components. SOLUTION: This pneumatic pressure controller for a tire is provided with: a control wire 4 connected to a valve for injecting air into the tire, and having a valve pin for opening and closing the valve; a stepping motor 3 for opening the valve to discharge the air in the tire by pushing the valve pin, a control substrate 2 for receiving a control signal for driving the stepping motor 3 from an outside; a battery 5 for receiving the control signal from the control substrate 2 to supply electric power to the motor 3; and the casing 7 storing the stepping motor 3, the control substrate 2 and the battery 5, and provided in a wheel. The casing 7 is constituted to have an air hole 7b in a face (bottom face 7a) opposed to the wheel. COPYRIGHT: (C)2005,JPO&NCIPI
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