Patent ID: 8235642

Claim:
A load handling system comprising: a trailer capable of being hitched to a towing vehicle and/or to other trailers in order to form a conveyor train, the trailer being configured to move in a direction, the trailer defining a first side parallel to the direction, and a second side opposing the first side; and a load-bearing dolly including a plurality of wheels configured to support the dolly and allow movement of the dolly characterised in that the trailer comprises a shaft configured to rotate thereby enabling movement of trailer, the shaft supporting a chassis equipped with a loading and unloading module for the load-bearing dolly, the loading and unloading module comprising a motor, a conveyor actuated by the motor, the conveyor defining a first incline and a second incline, the first incline being for positioning the dolly, the first incline being configured to engage a first part of the dolly over the first incline at a time when a second part of the dolly is not over the conveyor, and to move so as to engage the second part of the dolly over the first incline at a time when the first part of the dolly is over the conveyor, whereby the dolly is no longer in contact with the ground and is held in position on the trailer such that the plurality of wheels is suspended from the dolly, and the plurality of wheels is displaced, along the direction, from the first incline and displaced, along the direction, from the second incline, a height of the first incline being a decreasing function of a distance from an axis, the axis being perpendicular to the shaft, and the second incline being for positioning the dolly, the second incline being configured to engage the second part of the dolly over the second incline at a time when the first part of the dolly is not over the conveyor, and to move so as to engage the first part of the dolly over the second incline at a time when the second part of the dolly is over the conveyor, whereby the dolly is no longer in contact with the ground and is held in position on the trailer such that the plurality of wheels is suspended from the dolly, and the plurality of wheels is displaced, along the direction, from the first incline and displaced, along the direction, from the second incline, a height of the second incline being a decreasing function of a distance from the axis, the second incline having a symmetric position with respect to the first incline, the axis being an axis of symmetry of the symmetric position, whereby the conveyor enables loading and unloading of the dolly on the first side of the trailer and on the second side of the trailer.