Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific vehicle support structure
Reexamination Certificate
1999-11-19
2002-08-27
Olszewski, Robert P. (Department: 2167)
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific vehicle support structure
C187S214000, C187S217000, C187S218000, C187S219000
Reexamination Certificate
active
06439346
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a lifting device and particularly (though not exclusively) to a lifting device for use in connection with a motor-cycle or similar vehicle.
SUMMARY OF THE INVENTION
The present invention therefore provides a lifting device comprising a base-member adapted in use to support the device on a substantially level surface, a support-beam extending laterally from the base-member, a lifting-column attached to the distal end of the support-beam and extending substantially perpendicularly upwardly therefrom, together with a lifting-assembly in operative engagement with the lifting-column, the lifting-assembly being adapted to be raised and lowered along the axis of the lifting-column.
Suitably, the base-member is of substantially “H”-shaped configuration. Preferably, the centre-rail of the “H” is of larger overall dimension than the side-rails of the “H”.
Preferably, the lifting-assembly comprises a first beam extending substantially at 90° from the lifting column and in a plane substantially parallel to that of the base member, together with a second beam attached to the distal end of the first beam and extending substantially at 90° on either side of the first beam, the second beam also being in a plane substantially parallel to that of the base member.
The second beam of the lifting-assembly is suitably adapted, in use, to support beneath its engine area a vehicle to be lifted by means of a device according to the present invention.
For example, means may be provided which are adapted, in use, to engage and support the wheels and/or tires of a motor-cycle or similar vehicle.
Alternatively, means may be provided which are adapted, in use, to engage the rear suspension of a motor-cycle or similar vehicle and to support the vehicle from beneath the engine area.
Again alternatively, means may be provided which are adapted, in use, to engage the rear swing-arm and front forks of a motor-cycle or similar vehicle.
In a particularly preferred embodiment of the present invention, means are provided to engage and support the side-stand of a motor-cycle or similar vehicle. Such means may, for example, include a bracket-and-clamp assembly. The foot of the vehicle's own side-stand engages the bracket and is secured thereto by means of, say, a C-bolt and associated cap-screw. Preferably, the bracket-and-clamp assembly is pivotally attached to the lifting-means (for example, to the support-beam associated with the lifting-column) and is capable of being moved through 360° about its point of attachment.
Preferably, with reference to the lifting-assembly, the beam adapted, in use, to support the vehicle may be of hollow construction and adapted to receive one or more sets of mountings on which the vehicle is supported. For instance, mountings can be provided which support the vehicle at points beneath its chassis. Alternatively, mountings can be provided which support the vehicle at the base of the wheels or tires.
In a further embodiment of the present invention, the mountings are adapted for longitudinal and/or lateral movement relative to the beam.
In a yet further embodiment, the beam which is adapted, in use, to support the vehicle is provided with beam brackets, each bracket extending at substantially 90° to the longitudinal axis of the beam and being adapted, in use, to support vehicles such as custom vehicles, off-road bicycles or tricycles and four-wheeled “all-terrain” vehicles. One or more of the brackets may be provided with additional means (such as hook-bolts or the like) for further securing the vehicle before lifting. Again, each bracket can be adapted for movement relative to the beam.
The lifting-assembly may suitably be raised and lowered on the lifting-column by means of a threaded shaft (e.g. a trapezoidal screw-shaft) in association with a lifting nut acting on the lifting-beam. The shaft may be rotated by means of a drive-nut or the like. Rotation of the drive-nut can be achieved by mechanical means such as a crank-handle. Alternatively, the drive-nut can be rotated by means of a motor. Locking means such as a security-bolt may be provided to engage the lifting-beam so that the device can be locked in the raised position for added security.
In addition, provision can be made for adjusting the angle of the lifting-column relative to the ground or other surface, to compensate for any unevenness in the surface on which the lifting-device is to stand.
Thus, the present invention provides a secure, stable and versatile lifting device which is capable of lifting vehicles, especially motor-cycles and the like, to facilitate maintenance and repair work. The device according to the present invention can be readily portable and can be used on any relatively firm surface.
The present invention will be illustrated, merely by way of example, in the following description and with reference to the accompanying drawings.
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McAllister Steven B.
Olszewski Robert P.
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