PROBLEM TO BE SOLVED: To provide a wheelchair brake device having a simple structure and capable of smoothly folding a wheelchair, which can automatically brings the wheelchair into a braking state when a sitting person leaves the wheelchair.SOLUTION: The brake device includes: a presence detector which has a base portion disposed on a shaft member 14A disposed on a cross portion of a cross member 10X in a body frame 10, is raised from the base portion and is to be urged so as to move up by an urging means 23, and moves down when the user sits on a seat 15 disposed above the cross member 10X and moves up when the user leaves the wheelchair and a brake device 30 for stopping the rotation of the main wheels 12, which is coupled to the presence detector via a mechanical transmission means 27, is brought into an unbraking state due to the downward movement of the presence detector and into a braking state by the upward movement of the presence detector.COPYRIGHT: (C)2013,JPO&INPIT【課題】簡単な構造であり且つ円滑に車椅子の折畳みを可能とできる、搭乗者の離席時に自動的に制動状態とする車椅子のブレーキ装置を提供する。【解決手段】車体フレーム10におけるクロスメンバ10Xの交差部分に配置される軸部材14Aに基部が配置され、基部から立設され且つ付勢手段23により上昇するよう付勢され、クロスメンバ10Xの上方に配置されるシート15への搭乗者の着座により下降され且つ離席により上昇する在席検出装置と、前記在席検出装置に機械的な伝達手段27を介して連結され、在席検出装置の下降移動により非制動状態とされ、在席検出装置の上昇移動により制動状態とされる、前記主車輪12の回転を停止させるブレーキ装置30と、を備える。【選択図】図5
