Material or article handling – Self-loading or unloading vehicles – Loading or unloading by other carrier or mover means – and...
Patent
1989-04-19
1990-09-25
Bucci, David A.
Material or article handling
Self-loading or unloading vehicles
Loading or unloading by other carrier or mover means, and...
182 88, 182158, 187 9R, 187 18, 254 9C, 254122, 414558, 414921, B60P 144
Patent
active
049589792
DESCRIPTION:
BRIEF SUMMARY
SUMMARY OF THE INVENTION
the present invention relates to an arrangement for a lift adapted to a motor vehicle, which lift comprises a lifting platform capable of moving between the vehicle and a floor.
The principal object of the present invention is to make available an arrangement of the kind indicated above which is simple, compact, reliable and durable and is easy to operate.
Said object is achieved by means of an arrangement in accordance with the present invention, which is characterized essentially in that the platform is attached via a scissor mechanism to a source of power for the platform, so that the platform, upon actuation of said source of power, will move between a lower and an upper end position, one of which at least is situated at a different level to that of the attachment of the scissor mechanism to the source of power.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described below in terms of a preferred illustrative embodiment, in conjunction with which reference is made to the accompanying drawings, in which:
FIG. 1 illustrates the invention mounted on a vehicle;
FIG. 2 illustrates a section through the lift arrangement in a withdrawn storage position beneath the vehicle;
FIG. 3 illustrates the lift arrangement extended to a lifting position next to the vehicle;
FIG. 4 illustrates a perspective view of the lift arrangement alone, with its platform displaced to an intermediate position;
FIG. 5 illustrates the lift arrangement with its platform in the lowered position;
FIG. 6 illustrates the lift arrangement with its platform in the raised position and viewed from above;
FIG. 7 illustrates the lift arrangement viewed from below;
FIG. 8 illustrates a part of a scissor mechanism forming part of the lift arrangement;
FIG. 9 illustrates an edge stop mechanism situated on the platform, in a hinged stop position;
FIG. 10 illustrates said mechanism folded down in the unactuated position.
DESCRIPTION OF THE PREFERRED EMBODIMENT
An arrangement 1 for a passenger lift 2 executed in accordance with the present invention, which lift is adapted to a motor vehicle and comprises a lift platform 5 capable of moving between the vehicle 3 and a floor 4, includes a scissor mechanism 6. The platform 5 is connected via said scissor mechanism 6, which can include a supporting link 9, 10 and a guide link 11, 12 situated on the two lateral edges 7, 8 of the platform, to a suitable source of power 13, which enables the platform 5 to be actuated in order to achieve the desired raising of same. It is possible in this way, by actuating said source of power 13, to cause the platform 5 to be displaced between a lower end position D and an upper end position E, as illustrated in FIG. 5 and FIG. 6, for example, At least one of said end positions D, E is situated at a different level A and B to the level C at which the connection 14 between the scissor mechanism 6 and the source of power 13 is situated.
The platform 5 is conveniently so arranged as to be capable of moving between a level A and a level B respectively situated below and above said drive connection 14 and the level C for same, as illustrated in the drawings.
The attitude of said platform 5 is essentially horizontal during the period for which it is being caused to move between said end positions D and E, provided, of course, that the vehicle 3 is standing on a level floor 4, thanks to the presence of said scissor mechanism 6.
The platform 5, which in the embodiment illustrated is in the form of a flat sheet, but which may naturally exhibit some other desired form, including a form resembling a chair seat or some other support for a seated individual, is appropriately supported by a frame 15, which in turn may be supported by a guide arrangement 16 situated, for example, on the underside 3A of a vehicle, which guide arrangement may consist of two guide channels 16A, 16B, for example, attached to the chassis frame 17 of the vehicle, along which channels the lifting frame 15 is supported in such a way as to be capable of being freely guided, conv
REFERENCES:
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patent: 3912048 (1975-10-01), Manning
patent: 4058228 (1977-11-01), Hall
patent: 4134504 (1979-01-01), Salas et al.
patent: 4180366 (1979-12-01), Roth et al.
patent: 4407623 (1983-10-01), Parks
patent: 4579503 (1986-04-01), Disque
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