To provide a pneumatic pressure adjustment mechanism which can improve seal performance, and can quickly change the pneumatic pressure of a tire.SOLUTION: In a pneumatic pressure adjustment mechanism 10 for adjusting the pneumatic pressure of a tire 4, an axle is constituted of a cylinder body 11 which is closed at a tip, opened at a terminal end, and formed into a bottomed cylindrical shape having a communication hole 11b at an outer cylinder face of a tip part. A partitioning chamber 16 which is air-tightly formed of a telescopic bulkhead 14 joined to an external peripheral face of a rim part 2 in an air chamber 8, and the external peripheral face of the rim part 2 is formed. The axle comprises; a communication path 15 formed at a disc part 3, communicating with the partitioning chamber 16 at one end, and communicating with the communication hole 11b of the cylinder body 11 at the other end; a pressor 12 reciprocating in the cylinder body 11 in a cylinder axial direction; and a drive unit 13 of the pressor 12. Liquid is charged into a space in which an internal passage 11a at the tip side of the cylinder body 11 which is liquid-tightly formed of the pressor 12, and the partitioning chamber 16 communicate with each other via the communication path 15, a capacity of the partitioning chamber 16 is varied by the reciprocation of the pressor 12 in the cylinder axial direction, and the pneumatic tire pressure of the tire 4 is adjusted.SELECTED DRAWING: Figure 1
【課題】シール性を向上するとともにタイヤの空気圧を即座に変更可能な空気圧調節機構を提供する。【解決手段】タイヤ4の空気圧を調節する空気圧調節機構10は、車軸が先端が閉口して末端が開口してなる有底円筒状で、先端部の外筒面に連通孔11bが形成されてなる筒体11で構成され、空気室8の内部でリム部2の外周面に接合された伸縮自在の隔壁14とリム部2の外周面とで気密にされた隔室16が形成され、ディスク部3に形成されて、一端が隔室16に連通し、他端が筒体11の連通孔11bに連通する連通路15と、筒体11の内部を筒軸方向に往復する押子12と、この押子12の駆動装置13と、を備え、押子12により液密にされた筒体11の先端側の内部通路11aと隔室16とが連通路15を介して連通してなる空間に液体が充填され、押子12の筒軸方向の往復により隔室16の容積を可変させてタイヤ4の空気圧を調節する。【選択図】図1
PNEUMATIC PRESSURE ADJUSTMENT MECHANISM
空気圧調節機構
2021-09-27
Patent
Electronic Resource
Japanese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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