| 摘要 |
An automatic braking wheelchair having an automatic braking assembly which automatically locks one or both wheels of a wheelchair when the patient attempts to rise. The automatic braking assembly includes a movable seat on which a patient sits, a support assembly for supporting the movable seat, the support assembly having two axles connected thereto, each of the axles having a rotatable hub connected thereto, each of the hubs having a drive wheel rigidly connected thereto, the movable seat being slidably connected to the support assembly, at least one spring connected to the support assembly and to the movable seat for moving the movable seat upward when the patient is not sitting in the movable seat, a locking gear rigidly connected to each of the two hubs, the locking gear having a plurality of teeth thereon, a locking gear receiver rigidly connected to the movable seat, the locking gear receiver having a cavity therein for receipt of the teeth of the locking gear to selectively lock the hub and said drive wheel in a stationary position.
|
