Apparatus for reproducing signals recorded on discs

Claim 1

An apparatus for reproducing signals recorded on discs, comprising: a fixed base; a loading-ejecting mechanism provided on said fixed base and having a sliding member for engaging with a case wherein a disc is accommodated, and in which loading-ejecting mechanism, for reproducing signals recorded on the disc, said case is loaded into a specific loaded position by manual insertion of said case thereinto, and from which loading-ejecting mechanism, for ejection of said case after reproduction, said case is ejected by a movement of said sliding member; a movable base having disc reproducing means including a pickup for reading information signals recorded on discs, said movable base further having disc driving means including a spindle motor for rotating discs, said movable base being pivotally supported relative to said fixed base by pivot pins; movable base driving means for actuating said movable base, said movable base driving means operating, at the time of loading said case containing said disc, to actuate said movable base in pivotal displacement thereof relative said fixed base to a specific reproducing position thereby to cause said disc reproducing means to confront the disc within the case and to cause said disc driving means to engage the disc, and said movable base driving means further operating, at the time of ejection of the case containing said disc, to actuate the movable base in pivotal displacement thereof relative the fixed base to withdraw the movable base from said specific reproducing position; locking and locked state detection means for operating, when the case reaches said specific loaded position, to engage and lock said sliding member thereby to prevent displacement of the case, said locking and locked state detection means operating to detect the state wherein the case has thus been positioned and locked in said specific loaded position and then to generate and transmit a starting signal to said movable base driving means, said locking and locked state detection means being provided with a set lever which set lever, when said case is being correctly inserted into said specific loaded position, is moved by the case into a position for permitting said locking and locked state detection means to operate, and which set lever, when the case has not been inserted, is in a free position to prevent locking of said sliding member even when the sliding member is pressed; and unlocking means for operating in unison with said movable base driving means at the time of case ejection to unlock said sliding member from the locked state thereof due to said locking and locked state detection means.

Claim 2

An apparatus for reproducing signals recorded on discs, comprising: a fixed base; a loading-ejecting mechanism provided on said fixed base and having a sliding member for engaging with a case wherein a disc is accommodated, and in which loading-ejecting mechanism, for reproducing signals recorded on the disc, said case is loaded into a specific loaded position by manual insertion of said case thereinto, and from which loading-ejecting mechanism, for ejection of said case after reproduction, said case is ejected by a movement of said sliding member; a movable base having disc reproducing means including a pickup for reading information signals recorded on discs, said movable base further having disc driving means including a spindle motor for rotating discs, said movable base being pivotally supported relative to said fixed base by pivot pins; movable base driving means for actuating said movable base, said movable base driving means operating, at the time of loading said case containing said disc, to actuate said movable base in pivotal displacement thereof relative said fixed base to a specific reproducing position thereby to cause said disc reproducing means to confront the disc within the case and to cause said disc driving means to engage the disc, and said movable base driving means further operating, at the time of ejection of the case containing said disc, to actuate the movable base in pivotal displacement thereof relative the fixed base to withdraw the movable base from said specific reproducing position; locking and locked state detection means for operating, when the case reaches said specific loaded position, to engage and lock said sliding member thereby to prevent displacement of the case, said locking and locked state detection means operating to detect the state wherein the case has thus been positioned and locked in said specific loaded position and then to generate and transmit a starting signal to said movable base driving means, said locking and locked state detection means being provided with a set lever which set lever, when said case is being correctly inserted into said specific loaded position, is moved by the case into a position for permitting said locking and locked state detection means to operate, and which set lever, when the case has not been inserted, is in a free position to prevent locking of said sliding member even when the sliding member is pressed; and unlocking means for operating in unison with said movable base driving means at the time of case ejection to unlock said sliding member from the locked state thereof due to said locking and locked state detection means.

Claim 6

An apparatus for reproducing signals recorded on discs, comprising: a fixed base; a loading-ejecting mechanism provided on said fixed base and having a sliding member for engaging with a case wherein a disc is accommodated, and in which loading-ejecting mechanism, for reproducing signals recorded on the disc, said case is loaded into a specific loaded position by manual insertion of said case thereinto, and from which loading-ejecting mechanism, for ejection of said case after reproduction, said case is ejected by a movement of said sliding member; a movable base having disc reproducing means including a pickup for reading information signals recorded on discs, said movable base further having disc driving means including a spindle motor for rotating discs, said movable base being pivotally supported relative to said fixed base by pivot pins; movable base driving means for actuating said movable base, said movable base driving means operating, at the time of loading said case containing said disc, to actuate said movable base in pivotal displacement thereof relative said fixed base to a specific reproducing position thereby to cause said disc reproducing means to confront the disc within the case and to cause said disc driving means to engage the disc, and said movable base driving means further operating, at the time of ejection of the case containing said disc, to actuate the movable base in pivotal displacement thereof relative the fixed base to withdraw the movable base from said specific reproducing position; locking and locked state detection means for operating, when the case reaches said specific loaded position, to engage and lock said sliding member thereby to prevent displacement of the case, said locking and locked state detection means operating to detect the state wherein the case has thus been positioned and locked in said specific loaded position and then to generate and transmit a starting signal to said movable base driving means; and unlocking means for operating in unison with said movable base driving means at the time of case ejection to unlock said sliding member from the locked state thereof due to said locking and locked state detection means, said unlocking means including an unlocking bar provided at one end thereof with a recess, said unlocking means further including a canceling lever which at one end thereof is engageable with and disengageable from the recess of the unlocking bar, said unlocking bar and said canceling lever being operable in co-operation with said locking and locked state detection means and with said loading-ejecting mechanism to prevent the locking operation of said locking and locked state detection means when said case is interrupted from a complete ejection and is forced to be reloaded towards said specific loaded position.

Claim 7

An apparatus for reproducing signals recorded on discs, comprising: a fixed base; a loading-ejecting mechanism provided on said fixed base and having a sliding member for engaging with a case wherein a disc is accommodated, and in which loading-ejecting mechanism, for reproducing signals recorded on the disc, said case is loaded into a specific loaded position by manual insertion of said case thereinto, and from which loading-ejecting mechanism, for ejection of said case after reproduction, said case is ejected by a movement of said sliding member; a movable base having disc reproducing means including a pickup for reading information signals recorded on discs, said movable base further having disc driving means including a spindle motor for rotating discs, said movable base being pivotally supported relative to said fixed base by pivot pins; movable base driving means for actuating said movable base, said movable base driving means operating, at the time of loading said case containing said disc, to actuate said movable base in pivotal displacement thereof relative said fixed base to a specific reproducing position thereby to cause said disc reproducing means to confront the disc within the case and to cause said disc driving means to engage the disc, and said movable base driving means further operating, at the time of ejection of the case containing said disc, to actuate the movable base in pivotal displacement thereof relative the fixed base to withdraw the movable base from said specific reproducing position; locking and locked state detection means for operating, when the case reaches said specific loaded position, to engage and lock said sliding member thereby to prevent displacement of the case, said locking and locked state detection means operating to detect the state wherein the case has thus been positioned and locked in said specific loaded position and then to generate and transmit a starting signal to said movable base driving means; and unlocking means for operating in unison with said movable base driving means at the time of case ejection to unlock said sliding member from the locked state thereof due to said locking and locked state detection means, said unlocking means including an unlocking bar provided at one end thereof with a recess, said unlocking means further including a canceling lever which at one end thereof is engageable with and disengageable from the recess of the unlocking bar, said unlocking bar and said canceling lever being operable in co-operation with said locking and locked state detection means and with said loading-ejecting mechanism to prevent the locking operation of said locking and locked state detection means when said case is interrupted from a complete ejection and is forced to be reloaded towards said specific loaded position.