| 摘要 |
A brake and anti-tipping system for a conventional wheelchair is disclosed. The system engages the ground to prevent rearward movement of a wheelchair and is disengaged when the wheelchair is occupied. The braking and anti-tipping system comprises a pivotable member which is pivotably supported between portions of a wheelchair frame assembly, a pair of arms each of which is fastened to the pivotable member, an abutment member which is supported on upper ends of arms, and a biasing member which is secured between the wheelchair frame assembly and wheelchair brake system. In another embodiment, the braking system includes a pair of mounting plates which are adapted and configured to be secured to opposite sides of the wheelchair frame, a pivotable frame member positioned between the mounting plates, at least one arm and at least one leg which are each pivotably mounted between the mounting plates, an abutment member and at least one connector, connected between the pivotable frame member connected to the arm and the leg. The system further includes a handle lock which is movable into engagement with the leg for keeping the leg in a movable position of the wheelchair.
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