| 摘要 |
PURPOSE:To eliminate the carrying of an air pumping tool, according to a method wherein an exterior operating type air pressure adjusting means is communicated with the interior of a rubber tire, being mounted in the wheel drum of the tire. CONSTITUTION:When air is pumped into a tire 1, an adjusting helical lever 11 is rotated, and a knob 11a is held to compress an inlet and exhaust pump 8 to the direction of an arrow A. Therefore, air in the pump 8 is introduced into the tire 1 through a pipe 8a, tire pressure being increased. On the other hand, when the pressure in the tire 1 is decreased, the lever 11 is reversely rotated, the pump 8 being expanded to the direction of an arrow B by means of the knob 11a to exhaust the air in the tire 1 into the pump 8. According to the above constitution, the air pressure can be adjusted without an air pumping tool. |
