SPIKE STRIP ANCHOR FOR CAR SELF-PULLING Russian patent published in 2025 - IPC B60S9/00 

FIELD: transportation.

SUBSTANCE: invention relates to transport. Spike strip anchor for car self-pulling comprises hollow tubular body, stops, windows, conical detachable point, hooks. Body is threaded from the outside from above and from the inside from below with two guide partitions with central holes inside. Stops are rigidly attached radially from the outside. Windows are made of rectangular cross-section radially in the wall of the housing. Tip screwed into the body has a central cylindrical recess in the threaded base. Hooks are made in the form of plates of rectangular section with sharpened outer ends and passed through return helical cylindrical springs. First turns of springs are rigidly attached to thrust caps of hooks, the last ones - to inner surface of housing coaxially with windows. Removable cup with an internal thread and an eyebolt rigidly attached to its bottom from the outside is put on the upper part of the housing. Hook extension mechanism includes an axis from a cylindrical rod with a head for a wrench, a lever from above and a support end from below. Spacing cylindrical helical spring, a square-section cam with rounded ribs and a ratchet device with a ratchet fixed by a lock nut are put on the axle. Ball spring retainers are attached to the upper partition.

EFFECT: higher bearing capacity.

1 cl, 4 dwg