초록

A back pack formed of spaced apart hollow tubular members open at the lower end where each support member receives a shaft with each of the shafts supporting an axle extending therefrom and a wheel on each axle.

대표청구항 ▼

In a back carrier of the type having two substantially parallel tubular support members adapted to be fitted generally vertically to the back of a person, said members having tubular lower ends, wherein the improvement comprises: two support shafts, each of said shafts inserted into the lower end of

In a back carrier of the type having two substantially parallel tubular support members adapted to be fitted generally vertically to the back of a person, said members having tubular lower ends, wherein the improvement comprises: two support shafts, each of said shafts inserted into the lower end of one of said support members; each of said shafts supporting an axle extending therefrom; two wheels, each rotatably mounted on one of said axles, means for securing said shafts in said members and means slidably mounted to at least one of said support shafts for engaging the wheel on said support shaft and preventing rotation thereof.