초록 ▼

A carriage device providing a base structure having a frame with a pair of parallel tubular members and front and rear cross members extending between and secured therewith to provide a rectangular configuration, and wheel means for movably supporting the base structure having a folded position prox

A carriage device providing a base structure having a frame with a pair of parallel tubular members and front and rear cross members extending between and secured therewith to provide a rectangular configuration, and wheel means for movably supporting the base structure having a folded position proximate to the base structure and an extended operative position. Handle means provide for the base structure is movable between a folded position proximate to the base structure and an extended position away from the base structure, and wheel positioning means comprise a pair of elongated rod elements each received and enclosed within a respective one of the tubular members are rotatable for moving the wheel means between their extended and folded positions by the corresponding movement of the handle means. Locking means engage the rod elements of the wheel positioning means for automatically locking the wheel positioning means against movement when the wheel means is either in its extended or folded positions. An infant seat is extendable from the handle means for use and is foldable when not in use. A foldable frame unit is secured with the front cross member to provide the container of a collapsible shopping cart.

대표청구항 ▼

A carriage device comprising a base structure, wheel means for movably supporting the base structure having a folded position proximate the base structure and an extended position, handle means for the base structure movable between a folded position proximate to the base structure and an extended p

A carriage device comprising a base structure, wheel means for movably supporting the base structure having a folded position proximate the base structure and an extended position, handle means for the base structure movable between a folded position proximate to the base structure and an extended position away from the base structure, and wheel positioning means received within and substantially entirely enclosed by the base structure and actuated by the handle means, the wheel positioning means being secured with the wheel means for moving the wheel means between the extended and folded positions as the handle means is moved correspondingly between its extended and folded positions, the base structure comprising a frame having a pair of parallel elongated tubular members with front and rear ends and a plurality of fixtures secured therewith, and the wheel positioning means including a pair of elongated rod elements each having front and rear ends and each being received and substantially enclosed within a respective one of the members and rotatable with the movement of the handle means for moving the wheel means between the extended and folded positions, the rod elements of the wheel positioning means each having gear means which are substantially entirely enclosed by the tubular members and fixtures and are engaged by the handle means for rotating the rod elements wth the movement of the handle means.