< Topic >It is possible to assure entire structural strengthening and light weight conversion, rim structure for the wheelchair of one type is offered.SolutionsRim 10 and hand rim it includes 20 and hollow rib 30. The rim displays the frame of hollow condition, possesses the rim edge 12 which, is located in the well 11 which with one mode is located on major diameter side and inside diameter side the median forms 1st hollow section 13. Hand rim 20 is provided parallel with the rim, displays the frame of hollow condition, possesses the finger grip section 22 which is located in the palm grip section 21 which with one mode is located on major diameter side and inside diameter side, the palm grip section and the finger grip section form the 2nd hollow section 23 of hollow condition together. Hollow rib 30 is provided between the rim and the hand rim, two ribs 31 which separate specified distance and 32 form together, rib 1st and 2nd hollow section communicate 13 and 23 between 31 and 32 and form the rib empty section 33, junction provide palm connection section 34 in rib 31 outside.< Choice figure >Drawing 3【課題】全体の構造強化と軽量化を図ることができる、一体式の車椅子用リム構造を提供する。【解決手段】リム10とハンドリム20と中空リブ30とを含む。リムは中空状の筐体を呈し、一体方式で外径側に位置するウエル11と、内径側に位置するリム縁12を有し、その中央は第1中空部13を形成する。ハンドリム20はリムと平行に設けられ、中空状の筐体を呈し、一体方式で外径側に位置する掌握り部21と、内径側に位置する指握り部22を有し、掌握り部と指握り部は共に中空状の第2中空部23を形成する。中空リブ30はリムとハンドリムの間に設けられ、所定距離を離した2つのリブ31、32が共に形成し、リブ31、32の間に第1、第2中空部13、23と連通して接合するリブ空き部33を形成し、外側のリブ31に掌接部34を設ける。【選択図】図3
