초록

A multi-function chair comprising a fore and a hind leg pivotally combined together and adapted to be altered to become a chair or a light duty truck or to be folded up to become a small dimension for storing away.

대표청구항 ▼

A multi-function chair structure, comprising: a seat comprising of two parallel round tubes and a plurality of parallel crosswise plates fixed on and extending between the parallel tubes, each tube having an open front end, a first pair of opposing pin holes at a rear end of said tube, a second pair

A multi-function chair structure, comprising: a seat comprising of two parallel round tubes and a plurality of parallel crosswise plates fixed on and extending between the parallel tubes, each tube having an open front end, a first pair of opposing pin holes at a rear end of said tube, a second pair of opposing pin holes adjacent the front end of the tube, a wheel on the rear end of each tube mounted on an axis perpendicular to the tube and a stop projection fixed under the seat at the rear end of said tube, and a bracket at approximately the longitudinal center of said tube; a backrest comprising a U-shaped tube frame and a plurality of parallel crosswise plates fixed on the frame, each leg of said U-shaped frame having a third pair of opposing pin holes at lower ends of the limbs of said frames to attach said frame, by means of bolts through said third pin holes, to one leg of an L-shaped fastener, another leg of said fastener being attached to a corresponding said parallel tube by means of bolts though said tube\s first pair of pin holes, whereby the seat is connected to the backrest; a fore leg shaped as a rectangular frame, having a first shaft hole at approximately the longitudinal center of each of two side tubes of said fore leg; a U-shaped hind leg, having a second shaft hole at approximately the longitudinal center of each of two side limbs of said hind leg so that a shaft tube may pass through both the first shaft holes of said fore leg and said second shaft holes of said hind leg, to affix the fore leg with the hind leg; two extending tubes received respectively in the front ends of said round tubes, each extending tube having a straight slot for a pin received in said second opposing pin holes of a corresponding said parallel tube to pass through, and each having a fourth pair of opposing pin holes at a front end of said extending tube for a pin to connect with a linking member, said linking member attached on an opposite end to a corresponding free end of a limb of said hind leg, whereby said extending tubes are mounted for back and forth motion within said parallel tubes, to enable partial ingress into and egress out of the front end of each of said parallel tubes for the respective linking members and limbs of the hind leg, the legs being moveable between a first configuration for use of the structure as a chair in which the linking members are withdrawn from the front ends of said parallel tubes, the hind leg limbs and fore leg side tubes are angled relative to one another under the seat and a top tube of the fore leg engages said stop projection, and a second configuration for use of the structure as a truck supported on said wheels in which the linking members are inserted in the front ends of said parallel tubes, the limbs of the hind leg project coaxially from the front ends of said parallel tubes and the top tube of the fore leg engages said brackets with the fore leg side tubes being parallel to the hind leg limbs.