QUICK-RELEASE AND EASY-TO-ASSEMBLE ADJUSTABLE WHEELCHAIR Russian patent published in 2021 - IPC A61G5/08 

FIELD: transportation.

SUBSTANCE: present invention relates to wheelchairs. Adjustable wheelchair comprises carcass assembly, seat pad assembly mounted on carcass assembly, armrest assembly mounted on carcass assembly on both sides of seat pad assembly, a movable step connected to the front part of the frame assembly, a brake assembly arranged on the side of the carcass assembly, and rear and universal wheels mounted on the carcass assembly. Frame assembly includes a rear bulkhead, a frame, a frame connection unit and a first mounting plate of the rear wheel. Rear bulkhead includes upper and lower back bulkheads, between which backrest folding mechanism is arranged. On upper back bulkhead partition there is a handle, and lower back bulkhead is connected to frame connecting unit equipped with armrest clamp. Frame includes upper and lower frames, and frame connecting unit has coupling attachment with upper frame. First mounting plate of rear wheel is located between upper and lower frames and is combined with frame connection unit. On upper frame there installed is an armrest slot, tie-rod and gasket-damper of partition bulk. In front part of lower frame there is fixing unit, and in rear part of it - lower rear coupling attachment. Seat cushion assembly includes a seat cushion casing with central rods coupled by a coupling on both sides of the cushion casing, and a pull-out cushion mounted on said rods. Armrest assembly comprises an armrest case with a backrest of the armrest connection unit and a guide unit on the lower side of the connecting unit. Guide arm unit is connected to the frame connection unit. On the front part of the armrest casing the eccentric lock is installed, combined with the slot for the armrest. Armoured screen equipped with an armrest lining is fixed on the armrest body. Movable rod is attached to the upper part of the armrest lining, and an armrest pad is fixed in the upper part of this rod. Armrest lining and movable rod are combined with sliding pin and pressure handle installed on the armrest body to adjust the height of the pad of the armrest. Movable footstep includes a bulkhead part, a support bulkhead, a foot plate and an assembled eccentric lock of the foot step. Bulkhead step part is connected with lower frame, support bulkhead is with lower part of foot step bulkhead, and foot plate is with lower part of support bulkhead. In the upper part of the footstep bulkhead there is an assembled eccentric lock of the foot step, which is connected to the fixing unit. Rear wheel is connected to carcass assembly by first rear wheel set plate, and universal wheel is connected with lower frame.

EFFECT: proposed invention ensures creation of adjustable wheelchair with fast disassembly and assembly.

9 cl, 7 dwg