This invention provides an one-piece type wheel rim structure for wheelchair, comprising a wheel rim integrally formed with a groove on the outer diameter side for mounting the tire, and a wheel frame rim on the inner diameter side a wheel handle disposed in parallel and integrally formed with a palm-holding part on the outer diameter side and a finger-holding part on the inner diameter side a second hollow part is formed and encircled commonly by the palm-holding part and finger-holding part a hollow rib, each of the hollow rib body equipped between the wheel rim and the wheel handle is formed by two rib bodies disposed at the predetermined distance, and a rib-hollow part is formed between the rib bodies and is connected with the first and the second hollow parts, the rib body on the outer side is formed into a palm-holding part at its outer edge for contacting the palm. As a result, the hollow rib is connected with the wheel rim and armrest rim integrally, so that its central space can block the impact force from the ground for providing a shock-absorbing effect. Moreover, since the thickness of the hollow-wheel rim is larger and has a better strength, it has a higher bending resistance and torsion resistance, and has the lightweight effect, and enhances the comfortability and safety.本發明主要係提供一種一體式之輪椅用輪圈結構,一輪圈,係以一體方式形成有位於外徑側之一輪胎槽,及位於內徑側之一輪框圈;一輪把,與該輪圈平行設置,係以一體方式形成有位於外徑側之一掌握部,及位於內徑側之一指握部,各該掌握部及指握部共同圍設形成中空狀之一第二中空部;一中空肋,係設於各該輪圈及輪把間之中空肋體,為距預設距離之二肋體所共同形成,並使各該肋體間形成可與各該第一、第二中空部相連通之一肋空部,位於外側之該肋體其外側緣設為一掌接部,係為可提供手掌接觸之部位;藉此,中空肋一體連接輪圈及扶手圈,其中央空間可對於來自地面上之衝擊力量,作適當阻隔,而具有吸震之緩衝效果,同時中空肋之厚度較大,且具有較佳之強度,故具有較高之抗彎性及抗扭力性,又具有輕量化之效果,亦能提升使用舒適性及安全性。(10)‧‧‧輪圈(11)‧‧‧輪胎槽(12)‧‧‧輪框圈(13)‧‧‧第一中空部(20)‧‧‧輪把(21)‧‧‧掌握部(22)‧‧‧指握部(23)‧‧‧第二中空部(30)‧‧‧中空肋(31)(32)‧‧‧肋體(33)‧‧‧肋空部(34)‧‧‧掌接部
