| 摘要 |
A bag spreader apparatus has an upper portion of a first length comprising two parallel upper side rails defining a substantially horizontal plane, a handle element at one end spanning and joining the upper side rails, a first jaw element at the opposite end spanning and joining the side rails and extending downward from the plane of the side rails, and guide structures contiguous with each upper side rail forming partially enclosed tracks open to the inside along a portion of each upper side rail, and a lower portion of a second length less than the first length comprising two parallel lower side rails defining a substantially horizontal plane, a handle portion spanning and joining the lower side rails, and a second jaw element extending downward from the plane of the lower side rails, the lower side rails constrained in the partially enclosed tracks of the upper guide rails, such that the lower portion may be translated relative to the upper portion to vary the distance between the first and second jaw elements. |
