Dolly for Moving Tall Loads Through Thresholds with Low Clearance

摘要

A shallow-draft dolly for moving a pre-fabricated storm shelter or other load throw threshold with minimal clearance. In one embodiment, the dolly has two side rail units, each with a lower and an upper bar; four wheel arms with attached wheels extending from the ends of the side rails, at least two of which are pivotally attached; front and rear cross members disposed between the ends of the side rail units; and two or more intermediate cross members transversing between the lower bars, thereby providing a slatted load bed positioned at or below the axles of the wheels, and wherein the front cross member is removable such that a load may be moved over an open pit with the wheels astride the pit, the load lifted from the bed, the front cross member removed, and the dolly rolled from underneath the load thereby leaving the load suspended over the pit.

主权项

1. A shallow-draft transportable dolly for moving a pre-fabricated load through a threshold having a threshold height, wherein the pre-fabricated load has a height approximate to the threshold height, the dolly comprising:
at least one rear wheel; at least one rear wheel attachment structure having a mechanical reception for a rear portion of a pre-fabricated storm shelter; two front wheels, each having an axle and each being attached to a wheel arm; and two front corner structures, each being attached to a wheel arm, and each having mechanical reception for a front corner of the pre-fabricated storm shelter; wherein, upon reception of the storm shelter by the at least one rear wheel attachment structure and the two front corner structures, the storm shelter is carried by the wheels, such that the front wheels extend beyond a width of the storm shelter for straddling an open pit, and such that a bottom surface of the storm shelter is positioned at or below a level of the axles and above a bottom of the wheels, thereby allowing the storm shelter to be rolled on the wheels over an open pit with the wheels astride the pit, removal of corner structures following suspension of the load, thereby leaving the load suspended over the pit.