Disc-record player

A disc-record player comprising a deck plate (1) carrying a rotatable turntable (2) and a pivotable pick-up arm (4) which is rigidly connected to a pick-up arm support (24) underneath said deck plate, in which turntable (2) two depressible sensing pins (38,39) are arranged at different distances from the turntable shaft (3) to sense the presence of a disc record on the turntable (2), a control device being provided which comprises:

• a drive element (20) which is movably connected to the deck plate (1) and which is provided for controlling the pivotal movement of the pick-up arm (4) from a rest position towards the turntable (2) and for this purpose can be coupled to the pick-up arm support (24),
• a selection element (27),which can be set selectively to two operative positions and carries first and second positioning projections (29a, 29c) which each constitute a stop for the pivotal movement of the pick-up arm support (24) as a result of the coupling to the drive element (20), to position the free end of the pick-up arm (4) above the turntable (2) in a first position and a second position respectively,
• a positioning element (32) which cooperates with the selection element (27) and which comprises first and second positioning portions (34,35) which during a revolution of the turntable (2) cooperate with a first or a second depressed sensing pin (38,39) respectively depending on the diameter of a disc record placed on the turntable (2) after which the positioning element (32) always sets the selection element (27) in one of the operative positions, and
• a starting element (17) which is movable between two positions and which by a movement to a first position causes the rotation of the turntable (2) to be started and the control device to be activated, characterized in that
• the positioning portions (34,35) are movable between an upper or operative and a lower or inoperative position, the positioning portions (34,35) being situated in the path of the respective depressed sensing pin (38,39) in the upper position only,
• a movement of the starting element (17) to the first position causes the positioning portions (34,35) to be set to the upper position and a movement of the starting element (17) to a second position causes the positioning portions (34,35) to be set to the lower position,
• control means are provided which after the first revolution of the turntable (2) enable the starting element (17) to move out of the first position, so that the starting element (17) moves to the second position,
• the selection element (27) can also be set to an inoperative position in which a third positioning projection of the selection element (27) functions as a stop for the pick-up arm support (24) to prevent the pick-up arm (4) from being pivoted out of the rest position, and
• the drive element (20) carries a control element (22) which positions the selection element (27) into the inoperative position after every pivotal movement of the pick-up arm support (24) and of the free end of the pick-up arm (4) into one of the positions above the turntable(2).