ES233778U - Video disc player - Google Patents

Abstract

A video disc player for playing video discs that can be read optically, comprising: a housing with a recess; a cover that can be moved around a pivot axis between a fully open position and a fully closed playing position and that in the playback position covers a video disc that has been placed; latching means for engaging the lid in its reproducing position, comprising a latch supported for rotational and spring loaded movement, and a cam body which is secured to one side (front side) of the lid opposite the pivot axis whose cam body in the reproducing position extends into said recess of the housing and is provided with a latching cam, which cooperates with the latch in the position of reproduction of the lid, and of a safety cam; releasing means for releasing the lid so that it passes from its hooked position to an unlatched position, from which the lid, without being hindered by the latching means, can be moved to the fully open position, which disengagement means comprises a manually operated member, a disengagement member on which the detent is supported to rotate, which disengagement member is movable between an initial position and a disengagement position by means of the manually operated member, as well as a disengagement spring means for elastically pushing the lid from its reproducing position towards its disengaged position, the disengaging member being moved from its initial position to its disengaged position by the actuation of the manually operated member, so that the sear is moved relative to the body of cam moving from the coupling cam to a position in which the cap, without being impeded by the engagement cam can be opened by the release spring means by reaching a safety position which is located between the engaged position and the unlatched position, in which safety position the safety cam of the cam support is pressed against the lock by the release spring means, and because the release member returns from its unhooked position to its initial position, the detent is moved relative to the cam body reaching a position in which the cover, without being seen hindered by the safety cam, it can be opened to a greater extent by the release spring means reaching its disengaged position; a main engine; a drive shaft driven by the main motor to rotate a video disk; an electrical power source to supply power to the main motor; a main motor switch for connecting and disconnecting the supply of a power supply current to the main motor with the aid of the cam body, making the connection by a movement of the lid from its unengaged position to its reproduction position and disconnecting by the movement of the lid from its reproduction position to its safety position; and a safety mechanism that prevents the release member from returning from its unhooked position to its initial position for a certain time interval that is sufficient to allow the rotation speed of the drive shaft to be reduced to a safe non-hazardous value, characterized in that the cam body is provided with an additional latching cam which, if the aforementioned disengagement member is in its initial position, cooperates with the latch if the latch is in an intermediate position located between the disengaged position and the latching position. Reproduction, in whose intermediate position the application of supply current to the main motor has not yet been connected by the cam body, and the cam body is further provided with an additional safety cam which, when the sear is located on the cam of additional latching, prevents the disengagement member from moving from its initial position to its position. Uncoupling by cooperation with the sear, in order to prevent the lid from opening completely when the lid has not yet reached its reproducing position, but has adopted enters both a position in which the supply current is already applied to the main engine. (Machine-translation by Google Translate, not legally binding)