Obviously this arrangement is far less efficient than a situation wherein a relatively straight vertical path between the left arm and the object is employed.
As a consequence of the foregoing situation, there has existed a longstanding need among users of floor type jacks for a new type of lift mechanism that will produce a substantially straight up and down movement between the jack and the object being lifted; and the provision of such a construction is a stated objective of the present invention.
DISCLOSURE OF THE INVENTION
Briefly stated, the vertical lift floor jack construction that forms the basis of the present invention comprises in general: a housing unit; a hydraulic unit, a linkage unit; a lift arm unit; and a lift pad unit.
The hydraulic unit is operatively secured on one end to the housing unit; and, is operatively connected on the other end to the lift arm unit via the linkage unit.
However, as will be explained in greater detail further on in the specification, the housing unit is provided with a plurality of opposed slots which cooperate with the linkage unit and the left arm unit to laterally translate the lift arm unit as the lift arm unit is being raised vertically such that the lift pad unit is raised and lowered in the same vertical plane.