초록 ▼

A wheelchair has a seat frame, legrests pivotally mounted for elevation with respect to the seat frame, and an elevation mechanism. The elevation mechanism includes a latch link having a legrest end attached to the legrest, and a pivot end. Also included is a pivot link having a frame end pivotally

A wheelchair has a seat frame, legrests pivotally mounted for elevation with respect to the seat frame, and an elevation mechanism. The elevation mechanism includes a latch link having a legrest end attached to the legrest, and a pivot end. Also included is a pivot link having a frame end pivotally connected to the seat frame, and having a latch link end pivotally connected to the pivot end of the latch link., The latch link end of the pivot link and the pivot end of the latch link are pivotally connected through a latch pin. An actuator having a piston movable in forward and rearward directions with respect to the seat frame is provided to pivot the legrests relative to the seat frame, the piston having a forward end that is connected to one of the latch pin, the latch link, and the pivot link.

대표청구항 ▼

1. A wheelchair having a seat frame with a forward end, legrests pivotally mounted at the forward end of the seat frame for elevation with respect to the seat frame, and an elevation mechanism comprising:a latch link having a legrest end attached to the legrest, and a pivot end; a pivot link having

1. A wheelchair having a seat frame with a forward end, legrests pivotally mounted at the forward end of the seat frame for elevation with respect to the seat frame, and an elevation mechanism comprising:a latch link having a legrest end attached to the legrest, and a pivot end; a pivot link having a frame end pivotally connected to the seat frame, and having a latch link end pivotally connected to the pivot end of the latch link, where the latch link end of the pivot link and the pivot end of the latch link are pivotally connected through a latch pin; and an actuator movable in a forward direction with respect to the seat frame to pivot the legrests relative to the seat frame, the actuator having a forward end that is connected to one of the latch pin, the latch link, and the pivot link.