Trailer with non-tilting movable bed

A trailer for use in transporting a load from one area to another area has a frame and a bed operatively mounted to the frame which is capable of being moved from a first or lowered position to a second or elevated position in a substantially vertical manner or nontilting manner. At least one lifting mechanism is operatively connected to the bed, which applies the greatest force for lifting the bed from the lowered position to the elevated position at the beginning of the lift, rather than at an end or midpoint of the lift. At least one over-center latching mechanism secures the bed to the frame when the bed is in the elevated position.