Patent ID: 7036422

Claim:
A continuously lockable adjusting device, comprising: a fluid-filled cylindrical piston housing, having a pair of sealed ends; a piston, which is axially movable in said housing, and which subdivides said housing into two pressure chambers, which are capable of communicating with one another; a piston rod, connected to said piston, and extending axially in said housing and through an opening in a first one of said sealed ends of said housing to a space outside said housing; a locking valve arranged in said piston housing proximate a second one of said sealed ends and having a valve body and a closing member movably arranged in said valve body; an actuable trigger tappet with a transmission disc that is axially in playless bearing contact with said closing member, said trigger tappet being axially fixed in relation to said closing member, and such that a tilting movement of said trigger tappet causes said closing member to be axially movably acted on by said transmission disc, thereby causing said locking valve to open so as to cause said pressure chambers to communicate with one another; and a supporting disc fixedly connected in said valve body of said locking valve, wherein said supporting disc is fixed at a position relative to said closing member when said closing member is held at a closed position during assembly of said locking valve such that said supporting disc bears on said transmission disc and holds said transmission disc in playless contact with said closing member.