PROBLEM TO BE SOLVED: To provide a hand rim device which can be detachably installed to an existing wheel without remodeling a body frame of a wheelchair, and includes a deceleration mechanism to turn the wheel with smaller power.SOLUTION: This hand rim device includes: an output-side rotary member that can be detachably installed to a handle installation part of the wheel such that the output-side rotary member rotates integrally with the wheel of the wheelchair a support body rotatably connected to the output-side rotary member concentrically with the rotation center thereof, and detachably installed to a machine frame of the wheelchair such that the support body does not rotate an input-side rotary member having a ring handle in an outer circumferential part, and connected to the support body rotatably around the rotational axis of the same direction as the rotational axis of the output-side rotary member and the deceleration mechanism provided between the output-side rotary member and the input-side rotary member, decelerating the rotation of the input-side rotary member with respect to the support body, and transmitting the rotation to the output-side rotary member.COPYRIGHT: (C)2013,JPO&INPIT【課題】 車椅子の本体フレームを改造することなく、既存の走行車輪に着脱自在に取り付けられるとともに、前記、走行車輪をより小さい力で旋回させることができる減速機構を備えたハンドリム装置を提供する。【解決手段】 車椅子の車輪と一体に回転するように、前記車輪のハンドル取付部に着脱自在に取付けられる出力側回転部材と、前記出力側回転部材に対して、その回転中心と同心に回転自在に結合されているとともに、前記車椅子の機枠に対して、回転しないように着脱自在に取付けられる支持体と、外周部にリング状のハンドルを有し、前記支持体に対して、前記出力側回転部材の回転軸線と同方向の回転軸線回りに回転自在に結合された入力側回転部材と、前記出力側回転部材と入力側回転部材との間に設けられて、前記支持体に対する入力側回転部材の回転を減速して、出力側回転部材に伝達する減速機構とを備える。【選択図】図1
