Low-level lift

Details Low-level lift Low-level lift

2002-04-12

2003-08-05

Wilson, Lee D. (Department: 3723)

Implements or apparatus for applying pushing or pulling force

Single throw lever

Lazy tongs

C254S126000

Reexamination Certificate

active

06601826

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a scissors-type lift, in particular to a vehicle lift which has a reduced height in the fully closed position, and which for this reason is defined as “low-level”.
The U.S. Pat. No. 4,526,346 discloses a lift (
10
) which comprises a scissors-type articulation with a plurality of arms, and an oleodynamic cylinder for generating a thrust force, in order to bring the said scissors-type articulation from a closed position to a partial or total lifting position. Additionally, the lift comprises a mobile lever which is pivoted at a fulcrum point. The fulcrum point is spaced from the direction of thrust, and the oleodynamic cylinder acts in a pivoting manner against the fulcrum. The mobile lever is pivoted further relative to a semi-fixed lever, which in turn is pivoted at a fulcrum point of the scissors-type articulation.
The arms of the scissors-type are connected to a lifting runway or platform, thus giving rise to upward thrust which can support a load. Lifts of this type are mostly used “recessed”, i.e. the lift is embedded in the ground by means of appropriate foundations, such that there is no obstruction on the ground, and in order to obtain more space which can be used in a working environment.
In order to be able to open the scissors-type articulation, the oleodynamic cylinder must have good inclination, so that lift, it is obviously necessary to have a foundation in the floor with a depth of no less than 250 mm.
However, in many working environments, conditions are such that it is not possible to produce such a deep foundation, since there is a floor which is less thick than the height of the foundation required in order to embed the scissors-type lift.
SUMMARY OF THE INVENTION
The object of the present invention is to eliminate this disadvantage by means of a “low-level” scissors-type lift, which has a height no greater than 120 mm. This is possible by means of use of a lever-type kinematic mechanism as illustrated hereinafter.
The low-level scissors-type lift according to the present invention has the characteristics specified.


REFERENCES:
patent: 3891108 (1975-06-01), Traficant
patent: 4526346 (1985-07-01), Galloway et al.
patent: 4638610 (1987-01-01), Heikkinen
patent: 4858888 (1989-08-01), Cruz et al.
patent: 5192053 (1993-03-01), Sehlstedt
patent: 6464205 (2002-10-01), Wanner
patent: 0613852 (1974-09-01), None
patent: 0372246 (1990-06-01), None
patent: 0937677 (1999-08-01), None

Affiliated with

Also associated with

Rating

Low-level lift does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-level lift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-level lift will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3101983