Patent ID: 7513542

Claim:
A door comprising a door panel with an integrated door stopper installed in a cut-out in the door panel, said door stopper comprising a door stopper bolt with a foot movably disposed in a housing installed in the cutout, a compression spring for biasing the door stopper bolt downwardly in frictional contact with an underlying floor, and an operating mechanism comprising a lever disposed in the housing so as to be movable between two stable positions, and a rigid connecting element with a spring support member disposed at its end extending between the lever and the door stopper bolt by way of which the door stopper bolt is capable of being held with its foot raised out of contact with the underlying floor in one of the stable positions of the lever or held with a contact force of the compression spring in contact with the underlying floor in the other of the stable positions of the lever, said compression spring being disposed between the spring support member of the connecting element and the door stopper bolt, the door stopper bolt comprising a body attached to the foot at one end and attached at the other end to an upwardly extending shaft provided with a head and the compression spring extending around the upwardly extending shaft and being seated with one end on the door stopper bolt and engaging with its other end the spring support member in a pre-compressed state, the rigid connecting element with the spring support member being movable along the shaft for compressing the spring and biasing the door stopper in contact with the underlying floor with the force of the compressed compression spring.