초록 ▼

A balance-shifted personal carriage (19) designed for physically challenged persons such as paraplegics confined to wheelchairs. The carriage (19) basically consists of a base frame assembly (13) that supports a seating assembly (15) a pair of free pivoting wheels (18) located in the front, a pair o

A balance-shifted personal carriage (19) designed for physically challenged persons such as paraplegics confined to wheelchairs. The carriage (19) basically consists of a base frame assembly (13) that supports a seating assembly (15) a pair of free pivoting wheels (18) located in the front, a pair of steerable wheels (20) controlled by the rider and located in the back, and a centrally located power wheel (22) that is controlled by the rider. The balanced-shifted carriage (19) is operated in either of two modes of operation: in Mode 1, the rider shifts their weight backwards to allow the steerable wheels to contact the floor at which time the power wheel (2) is made to rotate to propel the carriage; in Mode 2, the rider shifts their weight forward to cause the steerable wheels (20)to rise and allow the pivoting wheels (12) to contact the floor allowing the rider to pivot and move the carriage away from an obstacle.

대표청구항 ▼

A balance shifted personal carriage comprising: a) a base frame assembly, b) a seating assembly attached to said base frame assembly, c) a free-pivoting wheel attached to each front or back corner of said base frame assembly, d) a steerable wheel attached to said base frame assembly at each corner o

A balance shifted personal carriage comprising: a) a base frame assembly, b) a seating assembly attached to said base frame assembly, c) a free-pivoting wheel attached to each front or back corner of said base frame assembly, d) a steerable wheel attached to said base frame assembly at each corner opposite the corners where said pivoting wheels are attached, e) a power wheel attached to said base frame assembly and substantially centered between said pivoting wheels and said steerable wheels, where said power wheel is mounted with its lowest tangential point below the tangential line between said pivoting wheels and said steerable wheels, wherein said power wheel is driven by a manual drive assembly having dual opposed hand cranks that are connected to a common hand crank shaft, wherein each of said hand cranks further comprise a thumb or finger lever which functions in combination with a squeeze lever that is connected to a means for controlling the steering angle of the two steerable wheels, and f) wherein said carriage is operable in either of two modes of operation: in Mode 1, the seated rider shifts his or her weight backwards to allow the steerable wheels to pivot downwardly with respect to said pivoting wheels, and make contact with the floor surface allowing said carriage to be steered by the seated rider; in Mode 2, the seated rider shifts his or her weight forward to allow said steerable wheels to rise above the floor and said pivoting wheels to make contact with the floor surface allowing the seated rider to pivot and move said carriage away from an obstacle in a direction opposite the pushing or pulling direction.