초록 ▼

A hand truck includes a rectangular main frame having a hand grip attached at the upper end of the main frame and a nose attached at the lower end of the main frame. A secondary rectangular frame lies alongside the back side of the main frame, with the secondary frame being pivotally attached at its

A hand truck includes a rectangular main frame having a hand grip attached at the upper end of the main frame and a nose attached at the lower end of the main frame. A secondary rectangular frame lies alongside the back side of the main frame, with the secondary frame being pivotally attached at its upper end to the main frame. A pair of primary wheels are attached to the lower end of the secondary frame for rolling the hand truck over a support surface such as the ground or floor. A pair of auxiliary wheels are provided on a swing away frame. The auxiliary wheels can be moved to a position in which the hand truck rests in a stable position on all four wheels. The main frame can then be pivoted about the pivotal connection to the secondary frame to be positioned in a horizontal or near horizontal position elevated from the ground or floor. Heavy objects such as kegs of beer can be rolled directly from a truck, rack or conveyor to the hand truck without requiring the operator to lift the heavy objects.

대표청구항 ▼

A hand truck comprising an elongate, substantially rectangular main frame having a front side, back side, upper end and lower end; a hand grip attached at the upper end of said main frame; a nose attached at the lower end of said main frame; a secondary, elongate, substantially rectangular frame hav

A hand truck comprising an elongate, substantially rectangular main frame having a front side, back side, upper end and lower end; a hand grip attached at the upper end of said main frame; a nose attached at the lower end of said main frame; a secondary, elongate, substantially rectangular frame having a front side, a back side, upper end and lower end, with the front side of said secondary frame lying alongside the back side of the main frame, said secondary frame being pivotally attached at its upper end to said main frame about a pivot axis that is essentially transverse of the main frame at a position spaced from the upper end of said main frame by no more than about 45% of the longitudinal length of said main frame; means for releasably locking the lower end of said main frame in abutting attachment to the lower end of said secondary frame, comprising a releasable catch member mounted on said main frame and a keeper on said secondary frame that is releasable engaged by said catch member; a pair of first wheels attached to said secondary frame near the lower end of said secondary frame for rolling the hand truck over a support surface; a pair of second wheels positioned on a swing away frame such that the second wheels can be moved between a first operative position in which the second wheels are located adjacent the back side of said secondary frame and spaced upwardly from said first wheels and a second operative position in which the second wheels swing upwardly from said first wheels and outwardly from the back side of said secondary frame, whereby the hand truck can be supported by all four wheels on the support surface, with the main frame of the hand truck sloping at an acute angle to the support surface; means for releasing the locking of the lower end of said main frame to the lower end of said secondary frame when said hand truck is supported on all four wheels; means for pivoting said main frame about said pivot axis so that when said hand truck is supported on all four wheels and when the lower end of the main frame has been released from its locked engagement to said secondary frame, the main frame can be pivoted upwardly; and means for releasably locking the main frame in a substantially horizontal orientation when the main frame has been pivoted to the horizontal orientation.