Patent ID: 7415854

Claim:
Safety lock with adjustable-length bolt, in particular for doors or gates, comprising: a box-shaped body ( 2 ) defined by at least one support base ( 3 ) and by a front plate ( 4 ); at least one bolt ( 5 ) having a longitudinal axis and mounted slidably on said box-shaped body ( 2 ) in the direction of said longitudinal axis (X); actuating means ( 8 ) able to move said bolt ( 5 ) in said direction of said longitudinal axis (X) between different operating positions; at least one movable element ( 15 ) provided with engaging means ( 17 ) intended to engage in seats ( 14 ) provided along said bolt ( 5 ) so as to retain the latter in said operating positions, said movable element being movable in response to said actuating means; wherein said safety lock further comprises adjustment means operable independently of said actuating means, said adjustment means being accessible from the outside of said box-shaped body ( 2 ) and being able to actuate said movable element ( 15 ) producing a displacement of said movable element, said movable element having at least one rotary component so as to engage and/or disengage said engaging means ( 17 ) in/from said seats ( 14 ).