Dolly for moving pianos and other heavy goods
AssigneeAnnecy Electronique
InventorBernard Wintz
Life of this patent
Estimating the term…
Abstract
A load handling dolly (1) assists in the transportation of a load P, such as a piano. A pair of cross-pieces (11, 12) are selectively slid beneath the load, either directly or using an intermediate support plate (17). A pair of side frames (3, 4) are disposed on either side of the load above free ends of the cross-pieces. The cross-pieces are received within extremities or eyelets (13b) of tie rods (13a) which are supported by the side frames for vertical movement by rotating a nut (15). As the nuts are turned, the tie rods, cross-pieces, and the load are lifted, transferring the load to two sets of wheels (5, 6, 7; 8, 9, 10) that rotatably mounted in the side frames.
Claims12
A load handling dolly for transporting a load comprising:
- first and second separate and detached lateral side-frames for positioning independently parallel to each other on opposite sides of a load and parallel to a longitudinal axis of the load, the side-frames each having a front wheel and a rear wheel, and framing which interconnects the front and rear wheels of each side-frame without interconnecting the first and second side frames to each other;
- at least two cross-pieces which are independently positioned transversely under the load between the side-frames, each of the cross-pieces being independently and detachably connected to the side-frames to interconnect the side frames into a unitary construction with the load supported therebetween on the cross-pieces during transport.
A load handling dolly for transporting a load including a longitudinal displacement device for displacing the dolly along a rectilinear trajectory parallel to a longitudinal axis, the longitudinal displacement device including:
- lateral side-frames disposed longitudinally parallel to the longitudinal axis, the side-frames each supported on at least a front wheel and a rear wheel;
- at least two cross-pieces disposed transversely between the side frames being independently and detachable connected to the side frames,
- a connection means for connecting the side-frames with the cross-pieces to make the side frames solid, between themselves at a time of transport, the connecting means including:
- at least four tie-rods each cooperating with one of two ends of the cross-pieces freely pre-disposed beneath the side-frames;
- and
- a device for causing the tie-rods to draw the cross-pieces into contact with lower edges of the side frames.
A load handling dolly for transporting a load such as a piano, the dolly comprising:
- first and second lateral side frames each supported on at least front and rear wheels, the first and second side frames being independently positionable in a parallel relationship on opposite sides of the load;
- first and second cross bars which are each independently inserted transversely below the load and below the first and second side frames;
- lifting mechanisms mounted to each side frame for lifting the first and second cross bars to concurrently (1) lift the load and (2) lock each of the first and second cross bars to the side frames such that the side frames are interconnected into a unitary conveyance by the cross bars locking to the side frames.
Dependencies are inferred from the claim text.