Floor board with insurance against lifting and procedure to secure a floor board to prevent its lifting as well as procedure to unlock a floor board secured against lifting

摘要

Floor board with at least one lifting insurance (25) fixed in an area of the front end (21) of the floor board, which is formed by a rotating safety lever (26) that can be turned manually around a vertical axis of rotation in the use position (22) of the floor board from an open position (28), in which the floor board (20) can be placed or removed from a horizontal support, to a closed position or safe against the lift (31) and vice versa, in which the floor board (20), when placed on the support (30) is secured against the lift with respect to the support (30), the rotating safety lever being secured (26) at least in its closed or secure position against lifting (31) against an involuntary rotation around the axis of rotation (27) in a first interlocking position (29), by means of an elastic interlocking element (35) that forms a coupling interlock posi tive, and presenting the rotating safety lever (26) a first lever arm (37.1) extending from the axis of rotation (27) in a first transverse direction (36.1) and a second lever arm (37.2) which is extends from the axis of rotation (27) in a second transverse direction (36.2), characterized in that the elastic interlocking element (35) is formed with a moving pressure part (50) relative to the second lever arm (37.2) and arranged spaced apart from the axis of rotation (27), and in which the separate pressure piece (50), additionally provided to the lever arms (37.1, 37.2) in the form of a bolt or a ball, of the interlocking element elastic (35), is subjected to a compression spring, in which the pressure piece (50) separated, fixed or supported on or on the second remote lever arm with respect to the mobile pivot axis (27) in relation to the second lever arm (37.2) is subjected to the compression spring, qu e is supported spaced apart from the axis of rotation (27) on the second lever arm (37.2), separated, provided additionally to the lever arms (37.1, 37.2), or the separate pressure piece, fixed or supported on or on a part of the floor board, provided in the area of the front end of the floor board, distanced from the movable axis of rotation with respect to the second lever arm elastically attacks the second lever arm upon request by the compression spring, and because in the interlocking position (29) the pressure piece (50) subjected to the elastic force of the compression spring is interlocked with positive coupling in a hole (40.1) arranged distanced from the axis of rotation (27) so that it is then only It is possible to rotate the rotary safety lever (26) around the axis of rotation (27) from the closed or secure position against the lift (31) to the open position (28), applying a higher turning force.