Ki Mobility LLC

Alan Ludovici

Thomas J Whelan

Murray G Slagerman

Richard E Schneider

A tiltable wheelchair comprises a tilt seat guide assembly supported in relation to a base frame and a first roller supported in relation to the tilt seat guide assembly for supporting a seat frame for movement in relation to the base frame. The first roller is movable along the tilt seat guide assembly in fore and aft directions to enable tilt of the seat frame in relation to the base frame. A link arm may be connected between the base frame and seat frame to urge the seat frame upward and rearward to tilt the seat frame as the first roller moves in a forward direction. A second roller may be provided to cooperate with a guide rail, which is supported in relation to the tilt seat guide assembly, so as to track the movement of the first roller and prevent lateral translation of the seat frame in relation to the base frame. A locking device may be provided for holding the seat frame in a desired position.

Tiltable wheelchair

A foldable tiltable wheelchair that overcomes the foregoing deficiencies comprises a base frame comprising laterally spaced side frames. A tiltable seat frame is supported for pivotal movement in relation to the base frame. The tiltable seat frame comprises laterally spaced seat rails. A first foldable cross-member provides a rigid connection between the seat rails when in an unfolded position. According to one embodiment, a second foldable cross-member provides a rigid connection between the side frames when in an unfolded position. The first and second foldable cross-members coupled so that moving one cross-member moves the other cross-member. According to another embodiment, the tiltable seat frame comprises a seat back supported in relation to the seat frame. The seat back comprises laterally spaced back canes. The first foldable cross-member is coupled to the seat frame so that the back canes are supported in relation to the first foldable cross-member so as to limit lateral flexure of the back canes. The first foldable cross-member is foldable to a folded position to fold the wheelchair.

Foldable tiltable wheelchair and frame therefor

A dampening system is efficient in dampening vibration through a wheelchair frame. The system allows a lower base frame and wheels to be rigidly attached, while an upper seat frame is joined to the base frame through elastomeric dampening bushings to isolate the seat frame from the base frame. The bushings may be hidden in vertical upright tubes of the base frame. The bushings can also be used for supporting front caster forks and/or a rear axle assembly in isolation to the base frame.

Dampening system for wheelchair and wheelchair therewith

A foldable wheelchair comprises a plurality of width-adjustable hinged foldable cross-members connected to side frames to support a pivotable tiltable seat frame. The seat frame angle is operably controlled by use of gas springs that can be configured to support users of varying weight. The wheelchair is further configured to control lateral stability of the seat frame. The seat frame cooperates with a forward positioned pivot that maintains the user's knees in a position relative to the ground. Wheel adjustments allow for a range of seat height.

A keyed and indexed tube and a taper lock system are suitable for use with a wheelchair, especially a pediatric wheelchair, which may require frequent adjustments during the growth of the occupant.

Keyed and indexed embossed tube and taper lock system

A latch mechanism for wheelchair seatbacks has multiple latch positions. The latch mechanism comprises a latch plate for supporting the back cane. The latch plate comprises a first relief and a second relief spaced from the first relief. A pivot pin is provided between the first and second reliefs for supporting the latch plate for pivotal movement in relation to the seat rail. A first catch is supported in relation to the latch plate for releasably engaging the first relief upon pivoting the latch plate in a first direction to lower the back cane to a folded position. A second catch is supported in relation to the latch plate for releasably engaging the second relief upon pivoting the latch plate in a second direction to raise the back cane to an unfolded position. The first and second catches are positioned with the latch plate therebetween.

Folding latch mechanism with multiple latch positions

An angle adjustment assembly comprises a first member configured to pivot about a first axis. A second member is configured to rotate about a second axis transverse to the first axis. The first member is eccentrically supported in relation to the second member so that rotation of the second member produces pivotal movement of the first member. A third member may be configured to rotate about a third axis transverse to the first axis. The second member may be eccentrically supported in relation to the third member so that rotation of the third member further produces pivotal movement of the first member. The second member may comprise an inner cam member. The third member may comprise an outer cam member. The first member may be a caster stem for supporting a wheelchair caster assembly, or alternatively, an axle receiver for supporting an axle of a wheelchair drive wheel.

Growing community of inventors

Stevens Point, WI, United States of America

Alan Ludovici