Foldable tiltable wheelchair and frame therefor

A foldable tiltable wheelchair comprising:

• a base frame comprising laterally spaced side frames;
• a tiltable seat frame supported for pivotal movement in relation to the base frame, the tiltable seat frame comprising laterally spaced seat rails;
• a seat back supported in relation to the seat frame, the seat back comprising laterally spaced back canes;
• a first foldable cross-member forming a connection between the seat rails and foldable within a plane coplanar with a plane bounded between the seat rails and providing a rigid connection between the seat rails when in an unfolded position,
• wherein the first foldable cross-member is coupled to the seat frame, the back canes being coupled to the first foldable cross-member so the first foldable cross-member limits lateral flexure of the back canes, and
• wherein the first foldable cross-member is foldable to a folded position to fold the wheelchair.

A foldable tiltable wheelchair comprising:

• a base frame comprising laterally spaced side frames;
• a tiltable seat frame supported for pivotal movement in relation to the base frame, the tiltable seat frame comprising laterally spaced seat rails;
• a seat back supported in relation to the seat frame, the seat back comprising laterally spaced back canes;
• a first foldable cross-member providing a rigid connection between the seat rails when in an unfolded position and folds in a plane defined between the seat rails,
• wherein the first foldable cross-member is coupled to the seat frame, the back canes being coupled to the first foldable cross-member so the first foldable cross-member limit lateral flexure of the back canes, and
• wherein the first foldable cross-member is foldable to a folded position to fold the wheelchair,
• a clevis supported in fixed relation to each seat rail, the first foldable cross-member being coupled for pivotal movement to the seat frame by the clevis, wherein the clevis forms a part of a bracket comprising:
• a first member extending in a first direction in relation to the clevis, the first member being supportable in fixed relation to the seat rails;
• and
• a second member extending in a second direction in relation to the clevis, the back canes being supportable for pivotal movement in relation to the second member.