|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B60K-001/02 A61G-005/10 A61G-005/06 A61G-005/04|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 264|
A wheelchair suspension assembly includes a frame, a drive assembly, an anti-tip linkage, a front anti-tip wheel, and a rear anti-tip wheel. The drive assembly includes a drive wheel. The front anti-tip wheel is positioned forward of the drive wheel by the anti-tip linkage. The rear anti-tip wheel is positioned rearward of the drive wheel the anti-tip linkage. The anti-tip linkage couples the front anti-tip wheel to the rear anti-tip wheel such that upward movement of the front anti-tip wheel relative to the frame causes upward movement of the rear anti-...
1. A wheelchair comprising: a frame;first and second drive assemblies that each include a drive wheel;first and second suspension assemblies that each include an anti-tip linkage and a shock absorber with a spring return;first and second front anti-tip wheels positioned forward of the drive wheels by the first and second anti-tip linkages;first and second rear anti-tip wheels positioned rearward of the drive wheels by the first and second anti-tip linkages;the first anti-tip linkage couples the first front anti-tip wheel to the first rear anti-tip wheel ...