초록 ▼

A wheelchair combination includes a hand-propelled wheelchair (1) having two large drive wheels (3), at least one front support wheel 950 and a seat for the wheelchair occupant, wherein the combination also includes a separate drive unit (2) having at least one electric drive motor and the requisite

A wheelchair combination includes a hand-propelled wheelchair (1) having two large drive wheels (3), at least one front support wheel 950 and a seat for the wheelchair occupant, wherein the combination also includes a separate drive unit (2) having at least one electric drive motor and the requisite batteries therefor. The hand-propelled wheelchair and the drive unit are provided with mutually coacting coupling means and the wheelchair occupant is able to activate the coupling means to couple the wheelchair to the drive unit while seated in his/her seat, so as to obtain a functional motor-driven wheelchair. According to the invention, the drive unit (2) is intended to be coupled to the hand-propelled wheelchair (1) from behind, so that when the unit is connected, it will be located at least partially between the two large drive wheels of the hand-propelled wheelchair (1). The resultant motor-driven wheelchair uses the support wheels (11) of the drive unit as rear wheels, together with the drive wheels (3) of the hand-propelled wheelchair.

대표청구항 ▼

[ I claim:] [1.] A wheelchair combination comprising:a hand-propelled wheelchair (1), having two large drive wheels (3), at least one front support wheel (5), and a seat (7) for the occupant of the wheelchair,a separate drive unit (2), which is provided with at least one support wheel (11) and inclu

[ I claim:] [1.] A wheelchair combination comprising:a hand-propelled wheelchair (1), having two large drive wheels (3), at least one front support wheel (5), and a seat (7) for the occupant of the wheelchair,a separate drive unit (2), which is provided with at least one support wheel (11) and includes at least one electric drive motor (44, 45) and batteries needed therefor, andmutually coacting coupling devices (19, 20, 21) on the hand-propelled wheelchair and the drive unit,wherein the wheelchair occupant is able to activate the coupling devices personally while seated in the wheelchair (1) so as to couple the wheelchair to the drive unit and therewith obtain a functional motor-driven wheelchair,characterized in that the drive unit (2) is constructed to be coupled to the hand-propelled wheelchair (1) from behind, such that when coupled said drive unit will be located at least partially between the two large drive wheels (3) of the hand-propelled wheelchair (1), in that the resultant motor-driven wheelchair utilizes said at least one support wheel (11) of the drive unit as a rear wheel together with the drive wheels (3) of the hand-propelled wheelchair, and in that when coupled, the drive unit (2) functions to transmit power to axles (36) of the drive wheels (3) of the hand-propelled wheelchair, these drive wheels (3) therewith functioning as drive wheels also for the motor-driven wheelchair; andfurther characterized by means (29) which when coupling the drive unit (2) to the hand-propelled wheelchair (1) function to tip the wheelchair slightly backwards around the axles of the drive wheels (3), so as to swing said at least one front support wheel (5) up out of the engagement with the underlying surface.