FIELD: construction.
SUBSTANCE: invention relates to a locking device (1, 2, 3), which comprises a body (10), at least one lever (20) and a narrowing element (30). Movements of the lever (20) and the narrowing element (30) relative to each other result in extension of the lever (20) from the body (10). During operation of the locking device the lever (20) is pressed to the wall of the chute and retains the locking device (1, 2, 3) in place.
EFFECT: prevention of roller curtain opening.
15 cl, 6 dwg
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