US Patent 12090102 Wheelchair back support adjustment system with central spherical joint

A wheelchair back support adjustment assembly that utilizes a swivel assembly is disclosed. This swivel assembly provides an entirety of an interconnection between the wheelchair back support adjustment assembly and a back support of a wheelchair. The wheelchair back support adjustment assembly may also include a linkage that interfaces with the swivel assembly. Opposite end portions of the linkage are connectable with a corresponding cane of a wheelchair. The configuration of the wheelchair back support adjustment assembly accommodates a variety of adjustments, to correspondingly adjust a back support of a wheelchair when in an installed configuration (e.g., to customize the back support to a user of the wheelchair). These adjustments may be through one or more adjustments of the swivel assembly, one or more adjustments adjustment of the linkage, or both.