Patent ID: 8347666

Claim:
A locking in mechanism comprising the combination of (i) and (ii); (i) a device ( 3 ) configured for locking a shutter element ( 13 , 53 ) arranged to slide along a railing ( 11 , 57 ), which locking device ( 3 ) comprises at least one locking bolt ( 5 ) movable between a first state, in which the locking bolt ( 5 ) is configured to engage with a locking member ( 9 ) of the shutter element ( 13 , 53 ) to lock the shutter element ( 13 , 53 ) against movement, and a second state, in which the locking bolt ( 5 ) is configured to avoid engagement with the locking member ( 9 ) and allow movement of the shutter element ( 13 , 53 ), wherein the locking bolt ( 5 ) is shaped to project into the railing ( 11 , 57 ) in the first state for engagement with the locking member ( 9 ) inside the railing ( 11 , 57 ), and the bolt ( 5 ) is configured to cooperate engagingly with a shutter plate ( 28 ) of the locking member ( 9 ), the locking device ( 3 ) is shaped for placement behind the railing ( 11 , 57 ) and inside an attachment element ( 15 ) configured to connect the railing ( 11 , 57 ) with a wall ( 17 ), the locking bolt ( 5 ) is shaped to project into the railing ( 11 , 67 ) through a hole ( 19 , 59 ) in the back ( 21 ) of the railing ( 11 , 57 ), and the locking bolt ( 5 ) has opposing curved surfaces ( 25 , 27 ), both curving to a tip of the locking bolt ( 5 ), an engagement surface ( 25 ) being concavely and continuously curved and configured to engage with and lock the locking member ( 9 ) from movement, which engagement surface ( 25 ) is curved such that the locking member ( 9 ) is pressed towards a fixed side ( 21 ) of at least one of the railing ( 11 , 57 ) and locking device ( 3 ) when the locking member ( 9 ) is pressed towards the locking bolt ( 5 ), and an opposing surface ( 27 ) being convexly and continuously curved such that the bolt ( 5 ) is pressed towards the second state and into the locking device ( 3 ) when pressed by the locking member ( 9 ), and (ii) a slide ( 7 ) configured to be connected with and allow locking of the shutter element ( 13 , 53 ) and arranged to slide along the railing ( 11 , 57 ), which slide ( 7 ) comprises the at least one locking member ( 9 ) shaped to allow the locking bolt ( 5 ) to, in the first state, engage with and lock the locking member ( 9 ), and thus the shutter element ( 13 , 53 ), against movement, wherein the locking member ( 9 ) is configured to slide inside the railing ( 11 , 57 ) and comprises the shutter plate ( 28 ) comprising a hole ( 23 ) to allow passage of the locking bolt ( 5 ) through the hole ( 23 ) for engagingly cooperating with the locking bolt ( 5 ) inside the railing ( 11 , 57 ), and the hole ( 23 ) is configured to face towards a backside ( 21 ) of the railing ( 11 , 57 ), which backside ( 21 ) is configured for being attached against an attachment element ( 15 ) or a wall ( 17 ).