Dual drive wheelchair

摘要

A dual drive wheelchair comprising a frame with a seat, a rear driving wheel set including a cross axle and a vertical rod, wherein the cross axle connects two rear wheels, a supporting structure including a support and an axial tube, wherein the support is connected to the frame and a front driving wheel set; and the axial tube fits around the vertical rod, and further comprising a first steering member of the first turning structure connected to the support and a second steering member of the first turning structure; wherein the second steering member is fixed to the vertical rod and a control structure including a pair of backrest canes fixed to the first steering member enabling a user or a caregiver to operate the control structure of the dual drive wheelchair.

主权项

1. A dual drive wheelchair, comprising:
a frame having a seat; a front driving wheel set including a pair of front wheels; a rear driving wheel set including a cross axle and a vertical rod, wherein the cross axle has two ends to connect a pair of rear wheels respectively; the vertical rod is connected to the cross axle; a supporting structure provided under the frame, including a support and an axial tube, wherein the support is connected to the frame with an end, while another end of the support is connected to the front driving wheel set; the axial tube is connected to the support, and has an axle hole for the vertical rod of the rear driving wheel set to pass through; a first turning structure including a first steering member and a second steering member, wherein the first steering member has a first end and a second end; the first end is connected to the support, and the second end is pivotally connected to an end of the second steering member; another end of the second steering member is fixed to an end of the vertical rod which is exposed out of the axial tube; and a control structure including a pair of backrest canes, wherein each of the backrest canes is fixed to the first steering member with an end thereof, and another end of each of the backrest canes forms a handle.