JPH06195843A - Recording disk performance device - Google Patents

Abstract

PURPOSE:To stably house a recording disk in a magazine. CONSTITUTION:A magazine 3 to house the disk almost radially in the state that the disk is erected is rotated and stopped and the disk is delivered and received between a disk loading/unloading section 4 and performance part 9 provide on the side of the rotation/movement path of the magazine and the magazine. At this recording disk performance device, a disk holding groove 31 for inserting and holding the disk directing toward a rotation center from an outer peripheral part is almost radially provided on the magazine. The central part of the disk holding groove 31 is made lower than the outer periphery and over the whole length, it is gradually made narrower toward the groove bottom side and the rotation center side of the magazine 3. The width of a groove bottom is made to correspond to the thickness of the disk over the whole length and the internal end upper edge of the groove 31 in contact with the outer peripheral edge of the disk is located on a position higher than the lowest position of the groove by the height nearly equal to the radius of the disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention accommodates a plurality of disc-shaped recording media (hereinafter referred to as discs) such as grooved or optical recording discs on which information is recorded and plays a desired disc. Alternatively, the present invention relates to a disc playing device that can be taken out to the outside and replaced with another disc.

[0002]

2. Description of the Related Art FIG.
4, as shown in FIG. 35, a disc housing magazine (610) is rotatably provided on the base chassis (600), and the magazine (61
Outside the rotation transition path of 0), two playing parts (630) (630) and 1
It is proposed to have one input / output section (620).
(JP-A-4-57248). On the outer peripheral side of the magazine (610), grooves (611) and (614) are formed in the bottom and the ceiling, respectively, from the outer peripheral side toward the center of rotation, and the lower and upper ends of the disc D are fitted in the grooves. Can be accommodated in the upright position. A notch (612) is provided on the outer end side of each of the lower grooves (611),
A leaf spring (613) is provided in the notch so as to project from the notch. In the loading / unloading section (620), a kicking-out arm (621) for kicking out the disc on the magazine (610) to the outside is rotatably arranged in a vertical plane, and is provided in each playing section (630) (630). Is a kicking arm (631) that kicks the disc to the playing set position (633) and a kicking arm (632) that kicks the disc D from the playing set position (633) into the magazine (610) in a vertical plane. It is movably deployed.

From the outside of the loading / unloading section (620), the magazine (61
When the disc is pushed into (0), the disc D will
Guided by 4), it penetrates into the inside of the magazine (610), pushes the leaf spring (613) downwards while passing over, and when the disk D crosses the leaf spring (613), the spring returns elastically. hand,
Prevents accidental ejection of the disc D. When playing a disc, the magazine (610) rotates according to the position of the disc selected by the user, and the disc D is played by two playing parts (630).
The disc D is kicked to the playing position (633) of the playing portion (630) by the kicking arm (631) so as to face one of the empty playing portions of (630). When the performance is finished, the kicking arm (632) kicks the disk D into the original position of the magazine (610).

[0004]

In the above-described disc playing device, the upper and lower grooves (611) (614) of the magazine (610) are deeper than the width of the non-signal portion on the outer periphery of the disc, so that the signal recording surface is Since it may come into contact with the groove wall and be damaged, it must be opened extremely shallow, so that the disc cannot be supported stably, and the disc may tilt while the magazine is rotating or when the disc is being delivered. May occur. The present invention is
An object of the present invention is to provide a disc playing device capable of stably storing a disc in a magazine without damaging the disc and solving the above problems.

[0005]

DISCLOSURE OF THE INVENTION The disk playing device of the present invention comprises:
Magazine that can be stored in a substantially radial shape with the disc upright
In a recording disk playing device that rotates and stops (3), and transfers the disk between the magazine and the disk loading / unloading section (4) and the playing section (9) provided on the side of the rotation transition path of the magazine, A disc holding groove (31) for fitting and holding the disc from the outer peripheral portion toward the center of rotation is provided in the magazine in a substantially radial manner, and the disc holding groove (31) is lower than the outer peripheral portion in the central portion and extends over the entire length. It is gradually narrowed toward the bottom side and the rotation center side of the magazine (3), the width of the groove bottom is formed slightly larger than the thickness of the disc, and the upper edge of the inner end of the groove (31) with which the outer peripheral edge of the disc abuts is It is located at a position higher than the lowest position of the groove by substantially the radial height of the disc.

[0006]

[Operation and effect] The disc holding groove (31) is gradually narrowed over the entire length toward the groove bottom side and the rotation center side of the magazine (3), and the width of the groove bottom is formed slightly larger than the thickness of the disc. Disc D that fits in the disc holding groove (31)
With the outer peripheral signalless portion being sandwiched by both walls at the bottom of the groove, the disk is supported almost without play, and the disk recording surface does not contact the groove wall. Further, the inner end height of the disc holding groove (31) is increased from the lowest position of the groove bottom supporting the disc by the radial height of the disc, so that the disc edge is sandwiched between the inner end upper edge (31e). The disk can be supported stably.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The disc playing device will be described below item by item. The mechanism will be described together with the configuration and operation effects. [Overall Outline] (See FIGS. 1, 2, 3, and 12) The embodiment is a disk playing device in which an audio signal is recorded by using a laser, and a diameter of 12 cm which is a standard size of two kinds of disks. Of the 8 cm and 8 cm, it is a performance device dedicated to a 12 cm disc, but the present invention is not limited to this, and it is needless to say that it can be applied to a performance device of various disc-shaped recording media. A disc housing magazine (3) is rotatably arranged in a horizontal plane on the base chassis (1) of the disc playing device.
A disk loading / unloading section (4) and a disk playing section (9) are provided outside the rotation transfer path of (3). The disc loading / unloading part (4) and the playing part (9) are separated from each other by 135 ° about the center of rotation of the magazine (3) in order to make the playing device as a whole compact.

The magazine (3) can accommodate 24 discs D in a radial manner, and the delivery device (6) provided in the disc loading / unloading section (4) externally feeds the discs D into the magazine (3) and magazines. Eject the disc from (3) to the outside. The loading / unloading of the disc, the selection of the performance, and the stop of the performance are performed by the ON-OFF button (22), the play button (23), the stop button (24), and the open / open button provided on the front panel (2) of the performance apparatus shown in FIG. This is done by operating the close button (25) and the numeric keypad (26). For example, if the user selects a disc to be played, the magazine (3) is rotated and the disc is conveyed to the playing section (9). The playing side delivery device (6a) sends the disc to the playing section (9). When the performance is over,
Return the disc to its original position in the magazine (3). The operation of various buttons on the front panel (2) will be described later.

In FIG. 2, M _{1 to} M ₇ are drive motors for operating the following mechanisms, SW _{1 to} SW ₈ are switches for detecting the operation end position of the mechanism, and SE _{1 to} SE ₈ are disk size and disk passage. SE ₉ sensor
Is a sensor for detecting the rotation angle of the magazine, each of which indicates a schematic arrangement position.

“Magazine (3)” (see FIGS. 3, 4, 5, and 8) The magazine (3) is formed into a thick disc-shaped body by injection molding of synthetic resin, and is a cylindrical portion provided in the center. (39) is rotatably fitted in the supporting column (10) protruding from the base chassis (1). 24 disc retaining grooves (31) on top of magazine (3)
Are opened at equal intervals in a substantially radial manner, the tips of the holding grooves (31) are opened to the side of the outer peripheral wall of the magazine (3), and the base ends are the cylindrical portions.
You are hitting (39). Number of disc retaining grooves (31) is 24
The number of disc holding grooves (31) is used for the reason of design to make the outer diameter of the magazine (3) as small as possible and to accommodate as many discs as possible. Is not meant to be limiting.

Each disk holding groove (31) of the embodiment is a magazine
It is exactly in the radial direction of (3), but the magazine (3)
It is also possible to provide a disc holding groove from the central cylindrical portion (39) in the tangential direction, and the fact that the arrangement of the disc holding grooves (31) is expressed as substantially radial means that the latter is also included.
Further, in the embodiment, the disc holding groove (31) is opened in a plane vertical to the base chassis (1), but if the disc holding groove (31) is opened at a slight tilt to the base chassis (1), the disc is slightly tilted. Since it is accommodated by standing, the disc accommodating portion can be made smaller in the height direction.

Each disc holding groove is formed on the upper surface of the magazine (3).
Next to (31), the groove numbers No. 1 to No. 24 are sequentially added in the counterclockwise direction. As shown in Fig. 8, the disc holding groove (31)
The groove bottom has a central portion in the lengthwise direction which is 5 mm lower than the bottom (31a) of the opening to the outer periphery of the magazine. Further, the disc holding groove (31) is gradually narrowed over the entire length toward the groove bottom side and the rotation center side of the magazine (3), and the width of the groove bottom is formed slightly larger than the disc thickness over the entire length. ing. Figure 4
Shows a state in which the magazine (3) is viewed from the back side, the disk holding groove (31) partially penetrates the bottom surface of the magazine (3) to form a slit (32). Disc retaining groove (31)
As shown in FIG. 8, the disc D fitted in the contacting portion is in contact with a plurality of places (31a) (31b) (31c) (31d) on the bottom of the groove, and the outer peripheral non-signal portion is sandwiched at these places, so that there is almost no play. The disk recording surface never touches the groove wall.

A ring-shaped elastic member (30) is attached to the outer periphery of the upper end of the central tubular portion (39) of the magazine (3). From the lowest point (31c) of the groove bottom of the disk holding groove (31) to the elastic member (30)
The vertical height H to the upper edge is 6 cm, which corresponds to the radial length of the disk D. The upper edge (3e) of the upper end (3e) of the disc holding groove (31) is raised from the lowest position of the groove bottom for supporting the disc by the radial height of the disc (3e).
The disc can be supported stably by sandwiching the edge of the disc in 1e). The ring-shaped elastic member (30) is a disk D.
This prevents the impact noise from coming into direct contact with the tubular portion (39) when falling into the disc holding groove (31).

As shown in FIG. 4, an annular tooth surface (33) for rotational drive and an annular rib (34) are concentrically formed on the bottom of the magazine (3), and the rotational position of the magazine (3) is determined. A hitting plate (35) is provided for this purpose. Magazine (3) has ribs (34) above
However, as shown in FIG. 5, the plurality of receiving rollers (12) arranged on a virtual circle concentric with the magazine support column (10) on the base chassis (1) are positioned in the height direction, The central tubular portion (39) is fitted in the support column (10) to stop the lateral movement.

As shown in FIG. 5, the magazine (3) has two 2
Motor (M ₃ ) for magazine rotation via step gears (310) (320)
Be connected to. The outer periphery of the large gear of the two-step gear (320) having a small gear (330) meshing with the annular tooth surface (33) of the magazine (3) has two through holes (340 ) (340)
Has been established. The base chassis (1) has two gears (3
A count sensor (SE ₉ ) is provided so as to partially sandwich the large gear of 20) from above and below, and the count sensor (SE ₉ ) counts the passage of the through hole (340). If the two-stage gear (320) rotates 1/2 turn, the magazine (3) rotates 15 °, that is, one pitch of the disc holding groove (31).

As shown in FIG. 5, on the base chassis (1), the lever (37) approaches the rotation transfer path of the contact plate (35) of the magazine (3) and is fixed around the shaft (37a). It is rotatably arranged within the range. One free end of the lever (37) is a contact plate
The spring (38) is biased so as to come out to the rotation transfer path of the mountain portion (36) formed in (35), and the detection switch (SW ₅ ) is provided in the rotation transfer path of the lever (37). ing. The lever (37) contacts the ridge (36) of the contact plate (35) and rotates, and the detection switch S
When W ₅ is activated, the No. 1 disc holding groove (31) of the magazine (3) faces the magazine (3) of the contact plate (35) so as to face the disc loading / unloading section (4) described later. The mounting position is fixed.

When the No. 1 disk holding groove (31) reaches the disk loading / unloading section (4), the magazine driving 2
Of the two through holes (340) (340) opened in the step gear (320),
One of the through holes (340) corresponds to the position of the count sensor (SE ₉ ). Disc No. 1 position detection switch (SW ₅ )
When the count sensor (SE ₉ ) works at the same time, No. 1
It is detected that the disc holding groove (31) is located in the disc loading / unloading section (4). If the ON-OFF button (22) on the front panel (2) is turned on, the magazine (3)
Always rotates so that the No. 1 disk holding groove (31) faces the disk loading / unloading section (4), and moves to the next operation.

"Disk upper guide member (5)" (Fig. 1,
(See FIGS. 3 and 6 to 8) Above the magazine (3), a guide member (5) for guiding the upper part of the disk group housed in the magazine (3) is provided. The guide member (5) is provided with a plurality of leg pieces (50) (51) projecting downward at the central portion and the outer peripheral portion, and the leg portion (50) at the central portion is the central tubular portion (of the magazine (3) ( It fits on the upper part of the support pillar (10) that penetrates through (39), and each leg piece (51) on the outer periphery is the base chassis.
The guide member (5) does not rotate because it is fitted and supported by the guide member support column (11) that is provided to project from (1). Figure 7 shows the guide member
It is an oblique view in which (5) is turned upside down, but an annular groove-shaped guide surface (52) is formed surrounding the central leg piece (50), and the central leg piece (5
The cross-sectional shape of the guide surface (52), which is cut in the radial direction centered on (0), substantially matches the outer peripheral curvature of the disc. As shown in FIG. 8, the guide surface (52) of the guide member (5) covers the disc D housed in the magazine (3) close to the upper part of the disc, and the playing device is housed in the state where the disc is housed. The disc does not escape from the magazine when moved or inverted.

As shown in FIG. 7, on the annular groove-shaped guide surface (52) of the guide member (5), the disc loading / unloading section (4) and the playing section (9) are centered around the central leg piece (50). Same as the angle formed by
Two guide grooves (53) and (54) are formed at intervals of 35 ° in the radial direction of the guide member (5), and both guide grooves (53)
(54) is open at the side edge of the guide member (5). The guide grooves (53) and (54) are used for the disc loading / unloading section (4) and the playing section.
Corresponding to position (9), the magazine for the disc at that position
Allow delivery to (3). Further, the guide member (5) is provided with a substantially triangular notch (55) from the outer peripheral portion to the side of the central leg piece (50), and a lid (56) is detachably attached to the notch. lid
The inner surface of (56) has a guide surface (5
2a) has been formed. The disc can be taken out of the magazine (3) by removing the lid (56) without removing the entire guide member (5).
It is convenient for the repairer to promptly take out the disc and give it to the user, and bring back only the playing device to carry out the repair, thereby avoiding the trouble of losing the disc.

"Disc loading / unloading part (4)" (see FIGS. 2, 6, and 12 to 17) As shown in FIG. 12, a slit (21) for loading and unloading a disc is formed at the center of the front panel (2). It is opened vertically. A revolving door (41) for opening and closing the slit is provided behind the slit (21) of the front panel (2), and as shown in FIG. 2, an insertion guide member (500) is provided behind the revolving door (41) and further behind it. A disk delivery device (6) to the magazine (3) is provided in the disk, and constitutes a disk loading / unloading section (4). Revolving door
(41) is formed by injection molding of synthetic resin, and as shown in FIG. 13, it has a vertically long cylindrical body when viewed from the front panel side, and two plate members (40) and (40) are installed and supported in the center. Plate member
A vertically long slit (42) through which the disc passes is formed between (40) and (40). The rear peripheral wall of the revolving door (41) is omitted for the convenience of manufacturing.

The slit 42 is slightly longer than the diameter of the disc. The interval between the slits (42) is widest in the range W of about 15 mm in the height direction at the central portion in the length direction of the slit, and the slit width is gradually narrowed from the wide range W in the vertical direction. At the edge, the disk is formed with a width that allows the disk to pass through with almost no margin. Further, the slit (42) is formed so as to extend outward along the entire length on the front panel (2) side and the opposite opening edge side. Therefore, when the disc D passes through the slit (42), even if the disc rubs against the side wall of the wide portion W of the slit, it is limited to the non-signal portion on the outer periphery of the disc, and the signal recording portion of the disc has the side wall of the slit. Therefore, the signal recording surface can be prevented from being damaged. Incidentally, the slit (21) of the front panel (2) and the disc insertion guide port (510) of the insertion guide member (500) described later.
Similarly to the slit (21) of the revolving door (41), the signal recording surface of the disk D is formed so as not to rub against the side wall.

In the revolving door (41), shafts (44) (44) projecting in the center of the upper and lower end plates are freely rotated by ribs (not shown) projecting on the back surface of the front panel (2). As shown in FIG. 15, the arc wall plate (43) is normally directed toward the slit (21) of the front panel (2) to close the slit (21). The slit (42) is driven to rotate clockwise by about 90 ° by a door opening / closing drive (400) described later.
Align the direction with the slit (21) on the front panel (2). As shown in FIG. 14B, stoppers (46) (46) are provided at the lower end of the revolving door (41) so as to hit the protruding piece (27) of the front panel (2) and regulate the rotation angle of the door.

As shown in FIG. 16, a hook (45) is projectingly provided on the upper end of the revolving door (41), and a spring (47) having a weak urging force for constantly urging the door in a closing direction and a hook (45) are provided on the hook. The door opening / closing device (400) is connected. The door opening / closing drive (400) has a slider (4) that slides horizontally along the front panel (2).
10) is provided with a torsion spring (440), and one end of the spring is extended so as to come into contact with the hook (45) of the revolving door (41). The slider (410) has a rack surface (420) formed in the sliding direction,
A pinion (450) meshes with the rack surface (420). Figure 6
As shown in FIG. 5, the slider (410) and the pinion (450) are arranged on the disc upper guide member (5).
A door opening / closing motor (M ₁ ) is attached to the guide member (5), the pinion (450) is rotationally driven by the motor (M ₁ ) and the slider (410) slides.

In FIGS. 15 and 16, the slider (410) is used.
When slides to the right, one end of the torsion spring (440) on the slider (410) hits the hook (45) of the revolving door (41), the spring (440) is compressed, and the revolving door (41) is closed. The rotating door (41) is rotated clockwise, that is, in the opening direction by overcoming the force of the spring (47) urging the door. When the slider (410) slides to the left, the torsion spring (440) opens
The biasing force on the revolving door (41) disappears away from the hook (45) of (41), and the revolving door (41) moves counterclockwise by the spring (47) force that biases the revolving door (41) in the closing direction. Revolving, the revolving door (41)
Front panel (2) slits (21) by wall plate (43) of
Close up.

A door fully closed detection switch (SW ₁ ) and a door fully opened detection switch (SW ₂ ) are provided along the transition path of the slider (410), and the slider (410) slides to a position where the rotary door is fully closed. For example, the protrusion (43
(0) operates the door fully closed detection switch (SW ₁ ) to stop the door opening / closing motor (M ₁ ), and if the slider (410) slides to the position where the rotary door is fully closed, the protrusion (430 ) Operates the door fully open detection switch (SW ₂ ) to open the door opening / closing motor (M ₁ )
To stop. As above, slider (410) and revolving door
(41) is not connected by a rigid body,
Open the revolving door (41) through the (440) and press the spring (4
Since the revolving door (41) is closed with 7), the slider (410) slides when the disc is caught in the revolving door (41),
Even when the spring (47) force in the closing direction acts on the revolving door (41), the revolving door (41) stops rotating in a state that the disc is caught, and the disc is not destroyed.

Further, on the back surface of the front panel (2), there is a disc bite detection switch (SW ₃ ) for hitting the hook (45) of the revolving door (41) and detecting the fully opened state of the revolving door (41). It has been deployed. As previously mentioned, the slider (410) and revolving door (4
1) is not connected by a rigid body, and the torsion spring (4
Since it is only connected via the (40), the revolving door (4
Even when the disk is caught in 1), the slider 410 may slide in the closing direction of the revolving door 41, and the door fully closed detection switch SW ₁ may be operated. Assuming this case, the disc bite detection switch (SW ₃ )
While detecting the fully opened state of the door, it is not possible to move to the next operation, further improving safety.

An insertion guide member (500) is fixedly arranged across the base chassis (1) and the disc upper guide member (5) behind the revolving door (41) by approaching the revolving door (41). It As shown in FIG. 17, the insertion guide member (500) includes two plate members (52
0) Connect the upper ends of (530) with end plates (540) (540), and plate member (520)
A disc insertion guide port (510) having a shape that does not rub against the recording surface of the disc is formed between (530) similarly to the slit (21) of the revolving door (41). Plate member (520) (530)
There are four through cutouts (550) at opposite positions, and the through cutouts are the _first of the six sensors (SE ₁ ) to (SE ₆ ) for detecting the size of the disk described later.
It is opened from (SE ₁ ) to the arrangement position of the fourth sensor (SE ₄ ) to allow the passage of sensor light.

"Disc delivery device (6)" (see FIGS. 2, 8, and 17 to 22) The delivery device (6) is arranged behind the insertion guide member (500). The delivery device (6) is a pair of rollers that are arranged close to the insertion guide member (500) and that conveys the disc D between them.
(61) (62) and the base chassis behind the rollers (61) (62)
(1) A kicking-out member (7) which is slidably arranged on the magazine (3) and kicks out the disk D on the magazine (3) toward the rollers (61) (62).
Composed of and. As shown in FIG. 17, two rollers (61)
In (62), shafts (601) and (602) protruding from each other at the centers of the upper and lower ends are rotatably supported by roller supporting members (63) and (64), and the roller supporting members (63) and (64) are ) Is fixed by straddling between the base chassis (1) and the disc upper guide member (5).

In FIG. 17, the roller (61) on the left side is held at a fixed position in contact with the surface of the disk passing through the width center of the insertion guide port (510) of the insertion guide member (500) and is rotationally driven at the lower end. Gear wheel (67) is attached. The other roller (62)
The shafts (602) at the upper and lower ends are notches at the upper end of the roller support member (64).
The (65) is fitted into the mating roller (61) in such a state that it can be moved toward and away from the mating roller (61), and is biased by the mating roller (61) by the spring (66) so that the two rollers are always in contact with each other. The lateral opening width of the notch (65) of the roller support member (64) is narrower than the diameter of the shaft (602) to prevent the roller shaft (602) from coming out. As shown in FIG. 18, the kicking member (7) is a base chassis.
Roller (6) from the support pillar (10) side for magazine support on (1)
1) A push piece (71) that is slidably provided between (62) and that pushes the disc into the bottom slit (32) of the magazine (3) and kicks the disc toward the rollers (61) (62) side at the rear end. ) Is projected upward, and a guide long hole (7
2) has been opened.

The localization roller (61) and kicking member (7)
A common drive unit (705) is connected to the. Drive unit (705)
As shown in FIG. 19, the loading / unloading side loading motor (M ₂ ) mounted on the base chassis (1) has a gear train (70
0) are connected, and the gear (67) at the lower end of the localization roller (61) is meshed with the large diameter gear (710) of the two-stage gear (730) on the downstream side of the gear train (700) to form the two-stage gear (730). The control gear (73) meshes with the small diameter gear (720) of the control gear (73) via the intermediate gear (740), and the shaft (77) protruding from the control gear (73) is engaged with the guide elongated hole (72) of the kicking member (7). ) Is slidably fitted. Not only the drive unit (705) but also the gears used in the mechanism of this embodiment are made of synthetic resin. As shown in FIG. 20, the intermediate gear (740) and the control gear (73) are rotatably fitted in the recess (13) formed in the base chassis (1). The recessed portion (13) is formed by continuously stacking a part of the small circular recessed portion (15) into which the intermediate gear (740) fits and the large circularly recessed portion (14) into which the control gear (73) fits. ing.

If no load is applied to the lower surface of the intermediate gear (740), the intermediate gear (740) rotates together with the intermediate gear (740), and if a load acts,
A hanging plate that slips against the intermediate gear (740)
(750) is installed. The hanging plate (750) has a rotation restricting piece (760) whose tip is bent downward and an arm piece (770) protruding laterally in a V shape. In the small circular recess (15) of the base chassis (1) in which the intermediate gear (740) is fitted, the rotation restricting piece (76
An arcuate hole (16) into which the bent portion of (0) is fitted is opened, and the rotation restricting piece (760) can be rotated by a margin of the hole. The arm piece (770) projects into the great circle recess (14) into which the control gear (73) is fitted. The control gear (73) is partially formed with a tooth surface (76), and both ends of the tooth surface (76) are notches extending along the tooth surface (76) in directions toward each other.
(74) (75) are opened to give elasticity to both sides of the tooth surface (76). A shaft (77) that fits into the elongated guide hole (72) of the kicking member (7) is provided on the upper surface of the control gear (73), and the lower surface is provided with notches (74) (75) near the outer periphery. The contact pieces (78) (79) are projected so as to approach each other.

When the disc is housed in the magazine (3), the loading / unloading side loading motor (M ₂ ) is operated to
As shown in FIG. 1, the two-step gear (730) rotates clockwise, and the localization roller (61) rotates in the direction to pull in the disc. Intermediate gear (740) meshing with small diameter gear (720) of two-step gear (730)
Rotates counterclockwise and the control gear 73 rotates clockwise to retract the kicking member (7) (FIG. 21 shows the kicking member in the retracted position). The hang-up plate (750) on the lower surface of the intermediate gear (740) rotates following the counterclockwise rotation of the intermediate gear (740), but the bent end of the rotation restricting piece (760) has an arc hole (16). The rotation stops when it hits the end of
Only the intermediate gear (740) rotates. When the kicking member (7) is retracted, the pushing piece (71) on the member (7) escapes from the disc holding groove (31) of the magazine (3), and the disc is inserted into the disc holding groove (31). There is no hindrance.

Even when the kicking member (7) reaches the retracted end, the two-step gear (730) continues to rotate, the localization roller (61) continues to rotate and continuously pulls in the disc, and the disc detection sensor SE to be described later is described. It is detected that ₁ to (SE ₆ ) have passed through the localization roller (61), and after a predetermined time elapses, 0.5 seconds in the embodiment, the loading / discharging side loading motor (M ₂ ) stops. As shown in FIG. 8, when the disc passes the rollers (61) (62), the disc is in the disc holding groove of the magazine (3).
It reaches the back of the (31) and, at the moment when it is separated from the rollers (61) and (62), it falls into the lower bottom portion of the disc holding groove (31). In Fig. 8, the disc and roller fall into the disc holding groove (31).
The self-weight rolling stroke A of the disc is larger than the distance B from (61). As shown in FIG. 21, the two-stage gear (730)
While the is rotating, the intermediate gear (740) also continues to rotate,
When the kicking member (7) reaches the backward end, the control gear (7
The notch (74) in 3) corresponds to the intermediate gear (740) and the intermediate gear (74
0) spins idle, no rotational force is transmitted to the control gear (73), and the mechanism is not damaged.

The disc is loaded from the magazine (3) to the rollers (61) (6
When loading to the 2) side, loading / unloading side loading motor
(M ₂ ) rotates in the opposite direction to the above, and as shown in FIG.
The two-step gear (730) rotates counterclockwise and the rollers (61) (62)
Rotate in the disc ejection direction. The intermediate gear (740) rotates clockwise, and at this time, the disengagement plate (750) also rotates, and the arm piece (770) causes the contact piece (78) on the lower surface of the control gear (73).
And rotate the control gear (73) slightly counterclockwise.

When the control gear (73) slightly rotates counterclockwise, the intermediate gear (740) and the tooth surface (76) of the control gear (73) mesh with each other, and the control gear (73) rotates counterclockwise. To drive. The hanging plate (750) on the lower surface of the intermediate gear (740) is the intermediate gear (740).
Rotation follows the clockwise rotation of the
The rotation stops when the bent portion of the tip (760) hits the end of the arc hole (16). The intermediate gear (740) continues to rotate. The counterclockwise rotation of the control gear (73) causes the kicking member (7) to move forward to enter the slit (32) at the bottom of the magazine (3),
Position the rollers in the disc holding groove (31) (61) (62)
Kick out until it bites (FIG. 22 shows the kicking completion position of the kicking member). At the time when the kick member (7) kicks the disc to the rollers (61) (62), the notch (75) of the control gear (73) corresponds to the intermediate gear (740) of the control gear (73). The rotation stops and the intermediate gear (740) does not damage the mechanism if it continues to rotate. If passing through the disk D roller (61) (62), the disk detection sensor worked-up and discharge side loading motor to be described later (M ₂₎ is stopped.

When the disc is housed in the magazine (3) again, the loading / unloading side loading motor (M ₂ ) is activated, the two-stage gear (730) rotates clockwise, and the roller (61) moves the disc (61). Rotate in the direction to pull in D. Two-step gear (730)
The intermediate gear (740) meshing with the small-diameter gear (720) rotates in the counterclockwise direction, and at this time, the arm piece (770) of the hanging plate (750) that rotates in the counterclockwise direction together with the intermediate gear (740). ) Kicks the contact piece (79) on the lower surface of the control gear (73) and slightly rotates the control gear (73) clockwise, so that the tooth surface (76) of the control gear (73) meshes with the intermediate gear (740). Let The subsequent operation is as described above.

The kicking member retracting position detecting switch (SW ₄ ) on the inserting / discharging side corresponding to the retracted position of the kicking member (7)
When the switch (SW ₄ ) does not detect that the kicking member (7) is in the retracted position, the magazine rotation motor (M ₃ ) is not energized,
The pushing piece (71) of the kicking member (7) is prevented from rotating the magazine (3) while being fitted in the slit (32) of the magazine (3).

[Mounting of Motor] (FIGS. 9, 10, and 11) The loading / unloading side loading motor (M ₂ ) is mounted on the plate (701), and the plate (701) is mounted on the base chassis (1). The side wall (100) is fixed to the receiving plate (18) protruding inward and the boss (17) projecting on the base chassis (1) with screws (19). A gear (780) fixed to the motor shaft penetrates the plate (701) downward. On the plate (701),
Multiple positioning notches (702) (702) (703) and screw insertion holes
(704) (704) has been established. On the backing plate (18) on the base chassis (1) and the base chassis (1), the gears of the motor shaft are
Corresponding to the position where (780) meshes with the gear (790) at the upstream end of the gear train (700), the notches (702) (702) (70) of the plate (701)
Protrusions (180) (180) (170) that fit in 3) are provided, and the plate
Corresponding to the screw insertion holes (704) (704) of (701), screw holes (171) (1
81) has been established.

The side wall (100) of the base chassis (1) hinders the plate (701) from being aligned with the protrusions (180) (180) and the screw holes (171) (181) from directly above. Interfering piece (1
10) is projected. Top of protrusion (180) and baffle (110)
The height interval from the lower surface of the plate is larger than the thickness of the plate (701). Therefore, loading / discharging side loading motor (M ₂ )
To fix the plate (701) to which the gear (780) and the gear (780) are attached to the base chassis (1), as shown in FIG.
It is necessary to dodge the (0) so that it can be submerged below the baffle (110), and at this time, the gear (7
The gear 80 is engaged with the mating gear 790 from the side, and it is possible to prevent the teeth of the gears 780 and 790 from colliding from the vertical direction and damaging the teeth. The motor mounting structure described above is also used for mounting the other motors used in this embodiment.

"Disc Detection" (FIGS. 23 and 24) The disc loading / unloading section (4) has six sensors (S) for detecting the size and passage of the disc as shown in FIG.
E ₁ ) (SE ₂ ) (SE ₃ ) (SE ₄ ) (SE ₅ ) (SE ₆ ) are deployed. Each sensor is configured by disposing a light emitting element and a light receiving element facing each other with a transition path of the disk interposed therebetween. The roller (61) (6
2) 1st to 4th sensor in a row vertically on the outside of
(SE ₁ ) (SE ₂ ) (SE ₃ ) (SE ₄ ) are deployed, and Laura (61)
The fifth sensor (SE5) and the sixth sensor (S
E ₆ ) is deployed.

The first sensor (SE ₁ ) is at a position where the center of the 12 cm disk passes, and the second sensor (SE ₂ ) is shown in FIG.
When the 8 cm disk d ₃ passes under the transition path as shown in FIG.
(SE ₃ ) is at a position for detecting the passage of the lower end of the disk, and the fourth sensor (SE ₄ ) is at a position for detecting the upper part of the 12 cm disk. The fifth sensor (SE ₅ ) is the first sensor (SE
Located between ₁ ) and 3rd sensor (SE ₃ ), 6th sensor
(SE ₆ ) is the second sensor (SE ₂ ) and the fourth sensor (SE ₄ ).
Between the 5th sensor (SE ₅ ) and the 6th sensor
(SE ₆ ) is 8c in the middle of the transition path of the 12cm disc.
When the m disk passes, the 5th sensor (SE ₅ ) or 6th sensor
At least one of the sensors (SE ₆ ) is arranged in a positional relationship capable of being detected.

In the following explanation of the operation, each sensor (SE ₁ )
(SE ₆ ) is turned on when light is transmitted. <When loading the disc> The user rolls the disc (61) (62)
Bite in between. 12 cm Disc Detection Procedure The first sensor (SE ₁ ) is switched from ON to OFF, the loading / ejection side loading motor (M ₂ ) is rotated, and the rollers (61) (62) are rotated to pull in the disc as described above. (State of disks D ₁ to D _{2 in} FIG. 23). The second sensor (SE ₂ ) to the sixth sensor (SE ₆ ) are all OFF (detection of a 12 cm disc) (state of D _{3 in} the figure). The first sensor (SE ₁ ) is ON (passing through the central hole of the disk), the 5th and 6th sensors (SE ₅ ) (SE ₆ ) OF
F. 5th and 6th sensor (SE ₅ ) (SE ₆ ) ON. disk
(D) slides down into the disc holding groove (31). A little after the fifth and sixth sensors (SE ₅ ) and (SE ₆ ) are turned on, and in the embodiment, after 0.5 seconds, the loading / discharging side loading motor (M ₂ ) is stopped, and the door opening / closing motor ( M ₁ ) operates and the revolving door (41) closes.

The presence of the disk D in the disk holding groove (31) is stored in the control device described later. It should be noted that the loading motor on the side of the disk loading / unloading section (4) is 0.5 seconds after the fifth and sixth sensors (SE ₅ ) and (SE ₆ ) are turned on.
(M ₂ ) is stopped and the door opening / closing motor (M ₁ ) is operated.
In consideration of slippage of the discs and the rollers (61) (62) that convey the discs, the rollers stop rotating while the discs are sandwiched between the rollers (61) (62) and the revolving door (41), and the next operation is performed. This is to prevent the move to.

8 cm Disc Detection Procedure 'As shown by d ₁ in FIG. 24, the fourth sensor (SE ₄ ) and the sixth sensor (SE ₆ ) are OFF and the third sensor (SE ₃ ) and the fifth sensor (SE ₅ ) Is ON. Alternatively, as shown by d ₂ in FIG. 24, the third sensor (SE ₃ ) and the fifth sensor (SE ₅ )
When OFF, the 4th sensor (SE ₄ ) and 6th sensor (SE ₄ )
₆ ) is ON. Alternatively, as indicated by d ₃ in FIG. 24, either or both of the fifth sensor (SE ₅ ) and the sixth sensor (SE ₆ ) are turned off, and the third sensor (SE ₃ ) and the fourth sensor (S ₃ ).
E ₄ ) is ON. The loading / unloading side loading motor (M ₂ ) rotates in the opposite direction to the above to rotate the rollers (61) and (62) in the disk ejecting direction. ′ The fifth sensor (SE ₅ ) and the sixth sensor (SE ₆ ) are O
N. ′ Loading / discharging side loading motor (M ₂ ) stops (8 cm
Hold the disc with the rollers (61) (62) biting it). If the 8 cm disc is reinserted from the above state ', it returns to' due to the above detection operation. When the user pulls out the disc from the rollers (61) and (62) in the state of ', the first sensor (SE ₁ ) is turned on, the door opening / closing motor (M ₁ ) is activated, and the revolving door (41) is moved. close.

<During Disc Ejection> By operating the open / close button (25) described later, the disc D accommodated in the disc holding groove (31) of the predetermined number of the magazine (3) is loaded into the disc loading / unloading portion ( 4) The magazine (3) is rotated so as to correspond to the position and stopped, and as described above, the transfer device (6) is operated to rotate the rollers (62) and (63) in the disc ejecting direction and kick out. The member (7) kicks out the disc and the rollers (61) (62)
Bite into. The third sensor (SE ₃ ) and the fourth sensor (SE ₄ ) are O
FF 5th sensor (SE ₅ ) and 6th sensor (SE ₆ ) are O
N Loading / discharging side loading motor (M ₂ ) stops (holds the disc while the rollers (61) and (62) are caught).

Next, 'the first sensor (SE ₁ ) is ON (when the user pulls out the disk from the rollers (61) (62))' The door opening / closing motor (M ₁ ) is activated and the revolving door (41) Closes. Alternatively, "the fifth sensor (SE ₅ ) and the sixth sensor (SE ₆ ) are O
N (when the disc is pushed in from the state of ") The loading / ejection side loading motor (M ₂ ) is operated to rotate the roller (61) to the disc pull-in side and store the disc in the magazine (3). In this state, if left for a certain period of time, the loading / unloading side loading motor
(M ₂ ) rotates in the disc loading direction to store the disc in the magazine again.

As described above, when the disc is ejected, the disc is not completely ejected to the outside of the rollers (61) and (62), but is held in a state of being caught in the rollers (61) and (62). The disc will not roll over the slits (21) on the front panel (2) and be damaged. Incidentally, when a known annular adapter (not shown) is attached to the 8 cm disk to make it a size of 12 cm, the operation is of course the same as the case of the 12 cm size.

"Delivery unit-side delivery device (6a)" (FIGS. 2 and 1)
8, FIG. 25 to FIG. 27) Corresponding to the playing portion (9), the disc in the magazine (3) is placed in the playing portion (9) or the disc of the playing portion (9) is placed in the magazine (3).
A delivery device (6a) to be delivered to is provided. Delivery device (6
a) is a delivery device on the side of the disc loading / unloading unit (4)
Similarly to (6), the kicking-out member (7) that slides on the base chassis (1) to kick out the disc on the magazine (3).
a), a pair of transport rotation rollers that transports the disc between them
(61a) (62a), kicking member (7a) and roller (61a) driving side loading motor for driving through the gear train (700a)
(M ₄ ), an intermediate gear (740a) provided between the kicking member (7a) and the gear train (700a), a control gear (73a) and an intermediate gear (74).
It is composed of a hanging plate (750a) attached to the lower surface of 0a).

A kicking member retracting position detection switch (SW ₆ ) is provided corresponding to the retracting end of the kicking member (7a),
Unless the switch detects the kicking member (7a),
That is, the kicking member (7a) is at the retracted position, and the magazine
(3) The motor for rotating the magazine (M ₃ ) is not energized unless it is confirmed that it has not entered the inside. Also, as described in the delivery device on the disc loading / unloading side, the pushing piece (71a) of the kicking member (7a) enters the slit (32) at the bottom of the magazine (3) to push the disc D into the roller (61a). when finished kicking up biting (62a), by later playing side disc detecting sensor _{(SE 7) (SE 8)} , kick member (7
The loading motor (M ₄ ) on the playing side that drives a) is stopped, and the pushing piece (71a) of the kicking member (7a) remains in the slit (32) of the magazine (3) described later, and the disc is playing. It is possible to prevent the magazine (3) from rotating carelessly.

When a disc is delivered by either one of the delivery device (6a) and the delivery device (6) on the side of the disc loading / unloading section (4), a disc kicking member of the other delivery device. By electrically controlling the pushing pieces (71) and (71a) of (7) and (7a) into the bottom slit (32) of the magazine (3) to the extent that the disc does not stick out, It is possible to prevent the magazine (3) from accidentally rotating and damaging the disc D during the delivery of the disc.

Transfer device (6a) on the playing side and disk insertion
The difference from the delivery device side delivery device (6) is that among the rollers (61) (62) of the delivery device (6) of the disc loading / ejecting part (4),
The driving side roller (61) does not move from the fixed position, and only the other roller (62) moves to clamp or release the disc. However, the delivery device on the performance section (9) side (6a) roller
(61a) and (62a) are points at which the rollers (61a) and (62a) approach and separate from the disc transfer passage, and clamp or release the disc. The two roller support members (63a) (64a) that rotatably support the upper and lower ends of the rollers (61a) (62a) are fixed at a fixed position between the base chassis (1) and the disc upper guide member (5). It is rotatably supported. A roller (61a) having a drive gear (67a) at its lower end is a roller support member (63a) while meshing with a gear (710a) at the downstream end of a gear train (700a) with which the gear (67a) is meshed. ) Gear (710a)
Revolve around. Two roller support members (63a) (64a)
Are urged by springs (60) (60) in a direction in which the rollers (61a) (62a) are pressed against each other.

The shafts (68) and (69) projecting from the center of the lower ends of the rollers (61a) and (62a) are opened and closed by the rollers opened on the inner end side of the slide plate (8) mounted on the base chassis (1). Cam groove (8
1) Fitted in (82). The slide plate (8) is a kicking member
Slide on the extension of the slide transition path in (7a). FIG. 26
As described above, the two cam grooves (81) (82) of the slide plate (8) approach the parallel part (81) from the kicking member (7a) toward the playing part (9).
When the slide plate (8) slides toward the kick-out member (7a), the roller (61a) is continuous with the (0) (820), the outer inclined parts (811) (821), and the parallel parts (812) (822). ) (62a) is opened, and the clamping pressure of the disk can be released. The slide plate (8) is the kick member (7
Slide away from (a) to roll (61a) (62a)
The space is closed and the disc can be pinched. As shown in FIG. 27, the slide plate (8) further includes a head side opening / closing cam groove (8
3) (83) and clamper side opening / closing cam groove (85) are opened,
A rack surface (88) is formed at one side edge in the sliding direction. Disk clamp motor (M ₅ ) for opening and closing rollers
The gear (84) at the downstream end of the gear train (80) connected to each other meshes with the rack surface (88) of the slide plate (8).

"Performance part (9)" (FIGS. 2 and 25 to 33) The performance part (9) includes a disc housing case (91) for accommodating the discs supplied from the magazine (3), and It is composed of a head mounting body (92) and a clamper (93) which are arranged on both sides so as to be able to approach and separate from each other and clamp the disk in the case to rotate freely. As shown in FIG. 28, the disc housing case (91) has a peripheral plate (91
The plate member (912) and the plate member (913) provided with the protrusion (0) are joined to each other so as to be formed in a vertically long shape with an opening on the disc entry side. Case
The (91) is fixed to the base chassis (1) above the slide transition path of the slide plate (8) with the openings approaching the rollers (61a) and (62a) with the openings therebetween. Case (9
When the disc is stored in 1), the disc protrudes from the case opening to the magazine (3) side, and a part of the disc is fitted in the magazine (3). Inside the case (91), the disc has a little margin in the vertical direction and in the direction orthogonal to the intrusion transition path of the disc.

A notch (not shown) into which the turntable (922) on the head mounting body (92) and the disc (933) of the clamper (93) can enter is inserted into both plate members (912) and (913) of the case. 914) and (915) have been opened. As shown in FIG. 30, the head mounting body (92) has a turntable (922) for rotating the disk,
A head mount (92) equipped with a disk rotation motor (M ₆ ) for rotating the turntable (922) and a read head.
3), motor for head slide that drives the head mount (923) horizontally through the rack and the rack and pinion
(M ₇ ) is included. In the head mounting body (92), the pivots (921) (921) projecting on both sides of the upper end are the disk housing case (91).
It is rotatably supported on the upper part of. Head mount (9
At the lower end of 2), two leg shafts (924) (924) are provided so as to project.
(924) is slidably fitted in the head side opening / closing cam grooves (83) and (83) formed in the slide plate (8).

The clamper (93) is a disc storage case (91)
A disk (933) with a built-in magnet is provided at a position corresponding to the turntable (922) on a frame (932) swingably supported by pivots (931) (931) in the lower part of It is configured to fit the state. A leg shaft (934) is provided at the lower end of the frame body (932) so that the leg shaft (934) can be slidably fitted in the clamper side opening / closing cam groove (85) formed in the slide plate (8). waiting. The cam groove (85) for opening / closing the clamper side and the cam grooves (83) (83) for opening / closing the head side are provided when the slide plate (8) slides to the magazine (3) side, the head mounting body (92) and the clamper ( When the slide plate (8) slides away from the magazine (3) by rotating the shafts (93) in directions toward each other around the pivots (921) (931), the head mounting body (92) and the clamper (93) ) In the direction in which they slide away from each other, with respect to the sliding direction of the slide plate (8), the cam groove (8
3) (83) (85) are inclined. However, the cam groove (85) for opening and closing the clamper rotates to the side where the clamper (93) clamps the disc, and once at the center of the inner width of the case (91) with the turntable (922). After reaching the position to hold the pinch (state of Fig. 32), the groove shape is changed so that the disc (933) rotates slightly to the right so as to allow the turntable (922) to rotate in the suction state. Has been decided.

At the center of the turntable (922), a conical protrusion (925) that fits into the hole of the disc is provided so as to project, and the clamper (93)
The circular disc (933) is fitted with a conical concave portion (93) into which the conical convex portion (925) is fitted.
5) is formed, and as described above, the turntable (922) and the disc (93) are attached to the disc housed in the case (91).
3) approach each other and fit the conical convex portion (925) and the conical concave portion (935). At this time, the hole edge of the disc is
The disc is pressed against the turntable (922) by sliding the conical convex portion (925) of 2), and the turntable (922) and the core of the disc can be surely aligned. From this state, the clamper (93) rotates slightly to the right as described above,
The disc (933) is attracted to the turntable (922) even if the pressure against (33) is released, the core of the disc does not shift, and the disc does not contact the inner surface of the case (91). Disc D can be clamped with. The playing operation after the disc D is clamped is well known, and therefore its explanation is omitted.

The cam grooves (83) (83) (85) of the slide plate (8)
And the cam grooves (81) (82) for opening and closing the roller, the roller (61a)
(62a) opening and closing, turntable (922) and clamper (93)
The disc clamp timing with
a) (62a) sends the disc D to the disc housing case (91), and after the disc is clamped by the turntable (922) and the clamper (93), the rollers (61a) (62a) are opened to open the disc. When the clamping pressure is released and the disc D is returned from the performance section (9) to the magazine (3) after the performance is finished, the rollers (61a) (62a) are closed to clamp the disc, and then the turntable is turned on. The timing is set so that the clamp of the disc D by the (922) and the clamper (93) is released. That is, when the disc is delivered, the disc should be the roller (61a) (62a) or the turntable (922) and the clamper.
Since it is always pressed from both sides by (93),
Even if the playing device tilts itself due to, for example, lifting the playing device during delivery of the disc, the delivery of the disc can be reliably performed. As described above, the common slide plate (8) opens and closes the rollers (61a) (62a), and the turntable (922) and the clamper (93) clamp and unclamp the disc, so that the operation is reliable. Trouble due to the timing deviation does not occur. The disc is played while the disc is fitted between the rollers (61a) and (62a) of the delivery device (6a). Does not come into contact with each other and does not hinder the rotation of the disc.

As shown in FIG. 27, a clamp completion switch (SW ₇ ) and a clamp release switch (SW ₈ ) are arranged along the transition path of the slide plate (8). When the slide plate (8) advances toward the magazine (3) side until the disc is completely clamped, the clamp completion switch (SW ₇ ) detects the protruding piece (89) on the slide plate (8) for clamping. It stops the motor (M _5). When the slide plate (8) retracts until the disc is released, the clamp release switch
(SW ₈ ) detects the protrusion (89) and stops the clamping motor (M ₅ ).

As shown in FIG. 33, the delivery device (6a) comes close to the rollers (61a) and (62a), and is located inside the rollers, and is the same as the disc detection sensor on the disc loading / unloading side of the seventh device.
A sensor (SE ₇ ) and an eighth sensor (SE ₈ ) are provided. The seventh sensor (SE ₇ ) can detect the passage between the rollers (61a) and (62a), and the disk D can detect the disk housing case (9).
It is provided at a position where it comes off the disc D when it reaches the depth of 1). The eighth sensor (SE ₈ ) is provided at a position to detect the presence of the disc D when the disc D reaches the back of the disc housing case (91). 7th sensor when playing
Unless (SE ₇ ) detects the passage of the disk D, that is, the completion of conveyance to the playing position, the next operation is not started.
While the eighth sensor (SE ₈ ) detects the presence of the disk D, the magazine rotation motor (M ₃ ) is not energized,
The magazine (3) never rotates.

When the disk D is returned from the playing position to the magazine (3), unless the seventh sensor (SE ₇ ) detects the passage of the disk D, that is, the completion of housing the disk in the magazine (3), Does not start. As mentioned above,
When playing a disc, a part of the disc being played is in a magazine.
Since it is carried out in the state of being fitted in (3), it is possible to contribute to the miniaturization of the device as compared with a playing device which plays in a state where the disc D is completely ejected from the magazine (3).

Since the disc has information recorded only on one side, when the disc is accommodated in the magazine (3) with the front and back opposite, the signal reading head is used to
OC cannot be read. The disc loaded in the playing section (9) in the reverse direction is immediately returned to the magazine (3) when unreadable is detected. The returned disc can be controlled so that the magazine (3) is rotated to convey it to the disc loading / unloading section (4) and immediately eject it, or when playing a plurality of discs continuously, It is also possible to memorize the position of the facing disc D by a controller to be described later, and after the performance of all the discs, carry the backward disc D to the disc loading / unloading section (4) and eject it to the outside. Is.

“Front Panel and Button Operation” (FIGS. 2 and 12) As shown in FIG. 12, the front panel (2) has a disc loading / unloading slit (21) at the center and a display unit (28) at the upper left. ,
In the upper right corner, there is a view window (29), ON-OFF button (22), play button (23), stop button (24), open / close button (2
5), equipped with a numeric keypad (26) consisting of 10 key buttons numbered 0-9.

On the display unit (28), various displays are displayed according to the mode of the playing device. Lookout window (29) is a magazine
It is for seeing the accommodation state and rotation status of the disc above (3), and the illumination lamp (not shown) provided inside the device causes the disc to shine in a rainbow color, resulting in an excellent decorative effect. be able to.

The operation of each mechanism by operating the buttons on the front panel will be briefly described. The eight switches (SW ₁ ) to (SW ₈ ) and the nine disk detection sensors are described.
The (SE ₁ ) to (SE ₉ ) and the seven motors (M ₁ ) to (M ₇ ) are electrically connected to a controller (not shown) including a microprocessor and controlled according to a program.

In the following explanation, the disc No. and the magazine (3)
No. attached to each disk holding groove (31) of is the same,
For example, a No. 5 disc refers to a disc housed in the No. 5 disc holding groove (31).

The ON-OFF button (22) is turned ON. The magazine rotation motor (M ₃ ) is activated, and the magazine (3) rotates until the No. 1 disc holding groove (31) is located at the disc loading / unloading section.

There are two types of operating procedures for playing a disc. Play operation Use the numeric keypad (26) to select a disc. For example N
To select the o.14 disc, use numeric keys (26) 1 and 4
Press the key. Then press the play button (23). The magazine rotating motor (M ₃ ) is activated to convey the designated disk No. 1 to the playing section (9). From the magazine (3), perform the operation as described in the description of the performance section.
The disk is delivered to and played in (9), and when the performance is completed, the disk is stored in the original position of the magazine (3). The rotation direction of the disk D is controlled so as to rotate to the side where the rotation angle is small.

Further, as described above, when the disc is rotated, the delivery device (6) or the performance unit on the side of the disc loading / unloading unit (4).
Both kicking members (7) and (7a) of the delivery device (6a) on the (9) side
Press pieces (71) (71a) it is, unless it detects that reaches the retracted position (SW _4, detected by the SW _6), energizing the magazine rotating motor (M ₃₎ is to not, the magazine (3) Magazine (3) with pushing pieces (71) (71a) fitted in the bottom slit (32) of
Will not spin and destroy the mechanism.

Performance operation Disc No. Press the play button (23) without specifying.
In this case, the magazine (3) is rotated and played until the disk No. displayed on the display unit (28) is positioned on the playing unit (9). The display unit (28) displays the No. of the disk that has been operated immediately before the main performance operation, for example, the performance, the disk accommodation and the like.

There are two types of operation procedures for loading / unloading a disc. Input / output section operation Specify the disk No. with the ten keys (26), and open / close button (2
5) Press. The magazine (3) rotates, and the disc holding groove (31) of the designated No. faces the disc loading / unloading section (4).

When there is a disc in the disc holding groove (31) of the designated No., the door opening / closing motor (M ₁ ) operates to turn the revolving door (41).
And the loading / unloading side loading motor (M ₂ ) operates the delivery device (6) to eject the disc.
When there is no disc in the designated No. disc holding groove (31), the door opening / closing motor (M ₁ ) operates to open the revolving door (41),
Prepare for loading a disc.

Insertion / ejection operation Press the open / close button (25) to specify the disk No. The magazine (3) rotates and the No. displayed on the display (28).
The disc holding groove (31) is made to face the disc loading / unloading part (4), and the revolving door (41) is opened. If there is the disc D in the indicated disc holding groove (31), the disc D is ejected,
If there is no disk D, prepare for loading the disk.

Performance Stop Operation When the stop button (24) is pressed, the performance of the disc being played is stopped, and the magazine (3) is returned to its original position. The disc playing device does not have an eject button dedicated to ejecting the disc, and the disc is ejected by operating the open / close button (25).

In each of the above operations, the following safety measures and other measures are implemented in the form of an electric circuit (some of them have already been described). Magazine-related The magazine (3) passes through the sensor that confirms that the disk D has been transported to the magazine (3), and also the revolving door.
If it does not detect that (41) is closed, it will not rotate. It is possible to insert or eject another disc while allowing the magazine (3) to rotate while the disc is playing. However, another disc cannot be inserted into the disc holding groove (31) in which the disc being played is accommodated. The magazine (3) does not rotate unless it is detected that the disc kicking members (7), (7a) have escaped from the slit (32) of the magazine (3).

Revolving door relation The revolving door (41) is closed after passing a sensor for confirming that the disc has been conveyed to the magazine (3). The revolving door (41) opens after the magazine (3) stops rotating, and does not open while the magazine (3) is rotating.

Disc Ejection When the disc in the performance section (9) is stored in the magazine (3) by the stop button (24) or the open / close button (25), the storage causes the magazine (3) to be full. If
When a disc is newly loaded into the disc loading / unloading unit (4), the localization roller (61) of the delivery device (6) rotates in the ejection direction, and the disc is automatically ejected. The roller (61)
It is also possible to stop the rotation of the disc to prevent the disc from being pulled in. When the disc is mounted upside down on the playing section (9), it is detected that the TOC cannot be read, and the backward disc is ejected from the magazine (3).

[Characteristics of the Embodiment] The disc playing device of the embodiment has the following excellent characteristics. 1. Disc insertion / ejection slit (21) of front panel (2), slit (42) of revolving door (41), insertion guide member (50
The insertion guide port (510) of (0) is vertically narrowed from the center in the height direction of the opening width, and the disc loading side gradually widens, so when the disc is loaded, the slits (21) (42), insertion guide It is possible to prevent the recording portion of the disc from rubbing against the wall surface of the mouth (510) and damaging the disc. Also, the front panel
The slit (21) of (2) is closed except when the disc is inserted or removed to prevent foreign matter from being inserted.

2. The above slit (2
The revolving door (41) that opens and closes (1) is closed by the spring (47) and the opening operation (440) by the slider (410) via the torsion spring (440). Even if the slider (410) slides in the closing direction while the disc is sandwiched between (42), the revolving door (41) does not rotate and the disc is not damaged. Also, the slider (410) moves in the door closing direction and the fully closed moving end is detected by the door fully closed detection switch.
Disc bite detection switch even if (SW ₁ ) detects
While (SW ₃ ) detects that the revolving door (41) is in the fully open state, it cannot move to the next operation, so that it is possible to prevent damage to the disk double.

3. 1st sensor (SE ₁ ) to 6th sensor
With (SE ₆ ), it is possible to determine the disc size and prevent the discs other than the specified size from being loaded.
You can prevent troubles caused by out-of-size discs entering the magazine.

4. Since the magazine (3) rotates in a direction in which the rotation angle is small, the set time can be shortened.

5. Since part of the upper disc guide member (5) can be removed, the guide member (5) can be used when carrying out repairs.
It is convenient because you can take out the internal disc without removing the whole.

6. Each disc holding groove (31) of the magazine (3)
Is formed to accommodate one disc D to prevent double insertion, and the bottom of the disc holding groove (31) is a magazine.
With a simple structure in which the middle portion is lower than the outer peripheral side of (3), the magazine (3) can be stably supported, and inadvertent ejection of the rotating disk can be prevented.

7. The disc holding groove (31) is gradually narrowed over the entire length toward the groove bottom side and the rotation center side of the magazine (3), and the groove bottom width is formed slightly larger than the thickness of the disc D. The peripheral edge can be supported almost without play, and the disc recording surface can be prevented from coming into contact with the groove wall. 8. Since the ring-shaped elastic member (30) is attached to the cylindrical part (39) at the center of the magazine where the inner end of the disc holding groove (31) abuts,
It is possible to suppress the impact sound when the disc D is dropped into the disc holding groove (31). 9. The upper edge of the upper end of the disc holding groove (31) is higher than the lowest position of the groove bottom for supporting the disc by the radial height of the disc, and the disc edge can be sandwiched by the upper edge to stably support the disc. .

10. Since the performance of the disc D is performed with a part of the disc D left in the magazine (3), the performance of the disc D is larger than that of the performance device in which the disc D is completely ejected from the magazine (3). Can contribute to downsizing.

11. In the performance section (9), when the disc D is delivered, the transport rollers (61a) (62a) send the disc D to the disc housing case (91), and the turntable (922) and the clamper (93) disc D. After the clamping of the disc is completed, the rollers (61a) (62a) open and the disc D
When the disc D is returned from the performance section (9) to the magazine (3) after releasing the disc, the rollers (61a) (62a) are closed to sandwich the disc D and then the turntable (922). The timing is set so that the clamp of the disk D by the clamper (93) is released. Therefore, when the disc is delivered, the disc is constantly pressed and held from both sides by the rollers (61a) (62a) or the turntable (922) and the clamper (93), and the playing device tilts during the delivery of the disc. Even if the disc itself occurs, the disc is not dropped, and the disc can be delivered without fail. 12. Open and close the rollers (61a) (62a) and turntable
Clamping and unclamping of the disc D by the (922) and the clamper (93) are performed by sliding one slide plate (8), so that the operation is reliable and no troubles due to the timing shift occur.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a disc playing device.

FIG. 2 is a schematic plan view of a disc playing device.

FIG. 3 is a perspective view of a base chassis and a magazine.

FIG. 4 is a bottom perspective view of the magazine.

FIG. 5 is a schematic illustration of a magazine rotation and positioning stopping device.

FIG. 6 is a perspective view of a disc upper guide member.

FIG. 7 is a bottom-side perspective view of a disc upper guide member.

FIG. 8 is an explanatory diagram of a state where a disc falls into a magazine.

FIG. 9 is an exploded perspective view of a motor mounting portion.

FIG. 10 is a plan view of a motor mounting portion.

FIG. 11 is a plan view showing a state immediately before mounting the motor.

FIG. 12 is a perspective view of a front panel.

FIG. 13 is a front view of a revolving door.

14 is a cross-sectional view of the revolving door, FIG. 14A is FIG. 13A
-A line sectional view, and FIG. 14B is a 13B-B line sectional view.

FIG. 15 is a perspective view of a drive unit of a revolving door.

FIG. 16 is a plan view of a drive unit of the revolving door.

FIG. 17 is a perspective view of a disk delivery device.

FIG. 18 is a perspective view of a base chassis and a kick member.

FIG. 19 is a perspective view of a drive system of a slide member.

FIG. 20 is an exploded perspective view of a main part of a drive system of a slide member.

FIG. 21 is a plan view of a drive system of a slide member.

FIG. 22 is a plan view showing an operating state of the above.

FIG. 23 is an explanatory diagram showing passage detection of a 12 cm disc.

FIG. 24 is an explanatory diagram of a state where an 8 cm size disc is detected.

FIG. 25 is a perspective view of the performance unit delivery device.

FIG. 26 is a plan view of a roller portion of the performance section delivery device.

FIG. 27 is a perspective view of the playing portion.

FIG. 28 is an exploded perspective view of the disc housing case and the clamper.

FIG. 29 is a perspective view of the head mounting body.

FIG. 30 is a rear perspective view of the head mounting body.

FIG. 31 is an explanatory diagram showing a state of a head attachment body and a clamper before clamping a disc.

FIG. 32 is an explanatory diagram showing a state where a disc is sandwiched by an attachment body and a clamper.

FIG. 33 is an explanatory diagram of a detected state of the performance unit side disk sensor.

FIG. 34 is a perspective view of a conventional example.

FIG. 35 is a sectional view of a conventional example.

[Explanation of symbols]

 (1) Base chassis (2) Front panel (3) Magazine (4) Disc loading / unloading section (5) Disc top guide member (6) Delivery device (7) Slide member (9) Performance section

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[Procedure amendment]

[Submission date] March 4, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0074

[Correction method] Change

[Correction content]

In each of the above operations, the following safety measures and other measures are implemented in the form of an electric circuit (some of them have already been described). Magazine-related The magazine (3) passes through the sensor that confirms that the disk D has been transported to the magazine (3), and further the revolving door.
It does not rotate unless it detects that (41) is closed. The magazine (3) does not rotate unless it is detected that the disc kicking members (7), (7a) have escaped from the slit (32) of the magazine (3).

Claims (1)

[Claims] 1. A magazine (3) capable of accommodating in a substantially radial shape with a disc standing upright is rotated and stopped, and a disc loading / unloading section (4) and a performance section (provided on a side of a rotation transfer path of the magazine). 9) In a recording disk playing device for transferring a disk between a magazine and a magazine, the magazine has a disk holding groove for fitting and holding the disk from the outer peripheral portion toward the center of rotation.
(31) is opened substantially radially, the central portion of the disc holding groove (31) is lower than the outer circumference, and gradually narrows toward the groove bottom side and the rotation center side of the magazine (3) over the entire length, The width of the disc is slightly larger than the thickness of the disc. apparatus.