< Topic >While dropping the seat sheet in the lower part, it offers the cross brace and the wheelchair which for the wheelchair you can fold in the compact.SolutionsCross brace 40 for the wheelchair, to be loose S shape of character condition and concatenated bar 30 the first brace component 41 which possesses the first concatenated section 411 which time motion possibly is concatenated and, be the loose converse S shape of character condition which reverses first brace component 41 with the center and the top and the second brace component 42 which possesses the second concatenated section 421 which time motion possibly is concatenated and, to have concatenated bar 30 with the center and the top, as for first brace component 41 and second brace component 42, the respective top andIt crossed in the direction which the bottom approaches, the respective approximately center section it made the configuration which time motion possibly is concatenated with intersection joint section 43.< Choice figure >Drawing 1【課題】座シートを下方に垂らしつつ、コンパクトに折り畳める車いす用クロスブレース及び車いすを提供する。【解決手段】車いす用クロスブレース40を、緩やかなS字形状であり中心と上端との間に連結バー30を回動可能に連結する第一の連結部411を有する第一のブレース部材41と、第一のブレース部材41を反転させた緩やかな逆S字形状であり中心と上端との間に連結バー30を回動可能に連結する第二の連結部421を有する第二のブレース部材42と、を備え、第一のブレース部材41と第二のブレース部材42は、それぞれの上端同士及び下端同士が近接する向きに交差し、それぞれの略中央部が交差ジョイント部43によって回動可能に連結されている構成とした。【選択図】図1