| abstract |
A joint ( 1 ) having a first edge ( 2 ) and a second edge ( 3 ), the first edge ( 2 ) being provided with a distal edge ( 21 ) and a downwards protruding heel ( 22 ) The distal edge ( 21 ) is further provided with an upper joint edge ( 25 ) beneath which a groove ( 23 ) is arranged. The second edge ( 3 ) is provided with lower cheek ( 31 ) having a distal end ( 32 ) at which an upwards protruding lower cheek heel ( 33 ) is arranged. The second edge ( 3 ) is further provided with an upper joining edge ( 35 ) beneath which an undercut ( 34 ) is arranged. A moveable locking element ( 40 ) is arranged in the space created by the undercut ( 34 ). The moveable locking element ( 40 ) have a locking tongue ( 41 ), a locking tongue leg ( 42 ) and a manoeuvring leg ( 43 ). |