PROBLEM TO BE SOLVED: To obtain a tire washing device efficiently washing a tire and facilitating replacement of a fixed brush, by obtaining a rotary brush which simultaneously washes a ground contact surface and a side surface of the tire and whose frictional force rotates a wheel to be washed, and which brushes more strongly the ground contact surface side of a tire which is greatly polluted and whose surface is strong.SOLUTION: The tire washing device of a wheelchair includes a pair of side surface brushes mounted freely relatively rotatably and freely movably in a shaft direction sandwiching a rotation body supporting a wheel of the wheelchair and transmitting rotational force and washing both side surfaces of a tire. The side surface brushes include brush bristles extending in a shaft direction and are energized to the tire. The side surface brushes form rotary brushes, are rotated by frictional force acting from the tire at a tangential speed slower than a peripheral speed of the tire and brush the side surfaces of the tire by speed difference thereof. Washing power is enhanced and the fixed brush is easily replaced by providing the U-shaped fixed brush having the bristles together with the rotary brushes.COPYRIGHT: (C)2012,JPO&INPIT【課題】タイヤの接地面と側面とを同時に洗浄する回転ブラシであって、当該ブラシの摺擦力により洗浄しようとする車輪を回転させるものにおいて、汚れが大きくかつ表面が強靱なタイヤの接地面側ほど強く摺擦される回転ブラシを得る。また、タイヤを効率よく洗浄でき、固定ブラシの交換も容易なタイヤ洗浄装置を得る。【解決手段】車椅子の車輪を支持して回転力を伝達する回転体を挟んで相対回転自在かつ軸方向移動自在に装着されてタイヤの両側面を洗浄する一対の側面ブラシを備えている。側面ブラシは、軸方向に伸びるブラシ毛を備え、タイヤに向けて付勢されている。側面ブラシは、回転ブラシを形成しており、タイヤから作用する摩擦力で、タイヤの周速より遅い接線速度で回転し、その速度差により、タイヤの側面を摺擦する。回転ブラシとともに、剛毛を備えたU字形の固定ブラシを設けることにより、洗浄力が向上し、固定ブラシの交換も容易になる。【選択図】図1
