초록 ▼

Apparatus for securing a wheelchair to the floor of a vehicle or the like comprises two pairs of clamp posts journaled for up and down movement. Each post has a pair of clamp jaw members positioned to engage the wheelchair underframe. A main piston raises and lowers the posts simultaneously. Each po

Apparatus for securing a wheelchair to the floor of a vehicle or the like comprises two pairs of clamp posts journaled for up and down movement. Each post has a pair of clamp jaw members positioned to engage the wheelchair underframe. A main piston raises and lowers the posts simultaneously. Each post has a pair of clamp jaw pistons operatively connected to the corresponding clamp jaw members to grip the underframe. A control circuit comprises an electrical-motor-operated pump, a four-way solenoid-operated direction control spool valve, a pair of sequence valves, pilot operated check valves in the pressure lines leading to the clamp jaw pistons, and a three-way electrical toggle switch having “UP”, “DOWN”and “OFF”modes. In “UP”mode the main piston lifts the clamp posts to and optionally beyond a position to engage the frame where one of the sequence valves directs pressure fluid to the clamp jaw pistons to lock the clamp jaws onto the frame. Locking pressure is held by the pilot-operated check valves even during “OFF”mode. In “DOWN”mode, the other sequence valve actuates the pilot-operated check valves to release pressure from the clamp jaw pistons to open the clamp jaws, and to lower the clamp posts to stowed positions beneath the frame.

대표청구항 ▼

Apparatus for securing a wheelchair to the floor of a vehicle comprising: a housing having means for fixing it to the floor of the vehicle; clamp means comprising a plurality of vertically moveable post means having upwardly open jaw means and being supported by said housing for movement between rai

Apparatus for securing a wheelchair to the floor of a vehicle comprising: a housing having means for fixing it to the floor of the vehicle; clamp means comprising a plurality of vertically moveable post means having upwardly open jaw means and being supported by said housing for movement between raised and lowered positions; power means for raising and lowering said post means and for locking and unlocking said jaw means; and control means for said power means including means selectively operable to move said post means between a lowered position with the jaw means unlocked and a raised position with the jaw means locked.