| 摘要 |
A mechanical jack for lifting an object including a lever, a base and a fulcrum disposed between the lever and the base and a post for supporting the object being lifted with the post pivotally attached to the lever and a rod movably disposed between the post and the lever and the post cooperating with the lever, the base and the fulcrum is disclosed. The mechanical jack lifts and supports a wide variety of objects including, but not limited to, a snow plow blade, a sofa, a desk, a small building, a boat, a snowmobile, an aircraft, a filing cabinet, a stove, a table and other such loads. An additional feature of the mechanical jack includes a cup member disposed near a second end of the lever which faciliates lifting objects which are inconvenient or difficult to lift. Another feature of the mechanical jack includes a clasp disposed near the first end of the lever for use for assisting in the attachment of an object such as a snow plow blade to a "V" plate mounted on a vehicle. Although the mechanical jack can operate without the need for height adjustment; however, preferably, to make the mechanical jack even more functional, a vertical height of the fulcrum and of the post may be independently adjusted.
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