< Topic >The wheelchair front inversion and being the run floor face and the road surface which are made to park suddenly, run without the excessiveness, it does not fall in side channel gurechingu and the grade crossing concave difference in level, furthermore, enlargement of the wheelchair itself can be avoided, structure is simple, the compact and wheelchair which installs the nosewheel caster for the lightweight wheelchair is offered.SolutionsThrough the sub- large diameter axis arm 9 which, is provided in the adjacent upper part of caster fixed pivot 7 of the fork in the wheelchair which main small diameter wheel 5 distribution facilities is done in the lower part of the fork 4 which is installed in the fore-leg frame, sub- large diameter wheel 6 of pair is installed.< Choice figure >Drawing 2【課題】車椅子を前転倒や急停車させてしまう走行床面や路面であっても、無理なく走行でき、側溝グレーチングや踏切凹段差に嵌らない、さらに、車椅子自体の大型化を避けられ、構造が簡単で、コンパクトかつ軽量な車椅子用前輪キャスターを取り付けた車椅子を提供する。【解決手段】前脚フレームに取り付けたフォーク4の下方に主小径車輪5を配設された車椅子において、フォークのキャスター旋回軸7の近傍上方に設けた副大径車輪軸9を介して一対の副大径車輪6を取り付ける。【選択図】図2
