PROBLEM TO BE SOLVED: To provide a wheelchair with an automatic brake which has an inexpensive and safe automatic brake mechanism having a simple and strong structure, attached to the wheelchair not only when a wheelchair is newly manufactured but also when wheelchair is in use.SOLUTION: A mechanism including a pair or two pairs of chevron-shaped rotary brake rods and spring mechanisms is annexed to a wheelchair. A pair of the chevron-shaped rotary brake rods is provided on the rear side of the lower part of the wheelchair or two pairs of the chevron-shaped rotary brake rods are provided on the front side and the rear side of the wheelchair. Each of the chevron-shaped rotary brake rods includes a brake arm with a brake member at the lower end and a rotary operation arm directly or indirectly connected to a leaving/sitting detection arm, and the chevron-shaped rotary brake rods convert the elevating/lowering movement of the leaving/sitting detection arm to a rotary movement. Each of the spring mechanisms performs braking using the elevating/lowering movement of the leaving/sitting detection arm and the turning movement of the rotary brake rod and performs cancellation of the braking.COPYRIGHT: (C)2013,JPO&INPIT【課題】新規製作時は勿論のこと、使用中の車椅子に容易に後付可能な簡単で堅牢な構造で安価で安全な自動ブレ-キ機構を有する自動ブレーキ付車椅子を提供する提供する。【解決手段】下端にブレーキ部材を有するブレーキアーム及び回転操作アームを有し前記回転操作アームを前記離・着座検出アームに直接又は間接的に接続し前記離・着座検出アームの昇降動作を回転動作に変換するへの字の回転ブレーキロッドを車椅子の下部の後部側に一対又は前部側と後部側に二対設け、前記離・着座検出アームの昇降動作と回転ブレーキロッドの回動動作による制動とその解除を行うスプリング機構を設けた自動ブレーキ機構を付設したことを特徴とする自動ブレーキ付車椅子。【選択図】 図1
