WORKING METHOD FOR THE PARALLELOGRAM JACK Russian patent published in 2022 - IPC B66F3/08 

FIELD: parallelogram jacks.

SUBSTANCE: invention relates to a parallelogram jack, which, if necessary, can also be used as a winch. Lifting of the car is started by rotating the lead screw (6), while it leaves the grooves (9, 10) of the screw (8) and bushing (7), preparing the latter for subsequent work. When the arms (3, 4) of the broken levers reach the vertical position, the sleeve (7) is rotated, as a result of which it rises along the thread of the screw (8) and simultaneously lifts the screw part (2) through its external thread, the direction of which is opposite to the direction of its internal thread. After the bush (7) and the screw part (2) have reached the end of the thread, the vehicle will be at the maximum lifting height. When using a jack as a winch, the sleeve (7) together with the tip (11) is screwed into a stationary object. After that, one end of the halyard (13) is fixed on the right broken lever, the other end of which is fixed on the vehicle. The lead screw (6) is rotated, as a result of which the broken levers take up a vertical position. In this case, the second end of the halyard, together with the vehicle, will move to the left by the distance that the hinge of the right broken lever will move from the initial (folded) state to the vertical one. The end of the halyard (13) is pulled out by hand from the left broken lever and fixed in the left broken lever, and the halyard is released in the right lever. By rotating the lead screw (6), the levers are transferred to their original state, as a result of which the end of the halyard, together with the vehicle, will still move to the left by the distance the hinge of the left broken lever moves from the vertical position to the original one.

EFFECT: increase in operational characteristics and expansion of functionality.

8 cl, 4 dwg