Patent attributes
A backupholstery adjustment device for a wheelchair includes a wheelchair having a horizontally and/or obliquely adjusted backupholstery which has a pair of upper positioning rods and a pair of lower positioning rods spacedly secured to a plurality of V-shaped linking plates on inward arcuate lateral sides thereof, a pair of upper and a pair of lower adjustment pieces respectively secured to the upper and lower portions of a pair of L-shaped handles through a plurality of clamping plates. The upper adjustment pieces each has a slit abutting a stopping portion in the top insertable by the pair of upper positioning rods and a plurality of grooves formed inside for selectively engaging the upper positioning rods. The lower adjustment pieces each has a slit abutting a stopping portion, too, insertable by the pair of lower positioning rods and a single groove engageable within the lower positioning rods. In an alternate arrangement, both the upper and lower adjustment pieces having a plurality of positioning grooves.
