JP2889782B2 - Recording disk playing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art FIG.
4. As shown in FIG. 35, a disk housing magazine (610) is rotatably provided on the base chassis (600), and the magazine (61) is provided.
The two playing sections (630) (630) and 1
There has been proposed a device provided with two charging / discharging sections (620) (Japanese Patent Application Laid-Open No. 4-57248).

A magazine (61) is provided in the input / output section (620).
(0) A kick arm (621) for kicking the upper disk to the outside of the magazine is rotatably provided, and the disk is ejected by the kick arm (621), when the disk is ejected, or when the ejection is completed. If the protruding disc is reinserted and forcibly pushed in, excessive force may be applied to the disc or the kicking arm (621), causing damage to the disc or damaging the kicking arm (621). .

[0004] When a small-diameter disk (for example, an 8-cm disk) having a different outer diameter from the 12-cm disk is inserted into the magazine (610) from the input / output unit (620), the small-diameter disk is divided into two playing units ( 630) The transport between the (630) and the magazine (610) and the disc cannot be mounted on the playing section.
Further, it is impossible to discharge a small-diameter disc from the magazine (610) to the outside of the disc playing device. In this manner, loading and unloading a disk having a different outer diameter such as a small-diameter disk not only damages the disk but also causes a failure of the disk playing device.

On the other hand, the above-mentioned disk playing device (Japanese Patent Laid-Open No.
No. 57248), the disc loading / unloading section of this kind of disc playing apparatus has conventionally been
An opening for loading and unloading a disk is provided on the front panel of the apparatus, and a plate-shaped shutter for opening and closing the opening is rotatably provided behind the front panel. A disk insertion opening / closing mechanism configured to rotate the shutter by the force to close the opening and to rotate the shutter against the urging force of the spring to open the opening when the disk is taken in and out has been awarded. .

However, the disk insertion opening / closing mechanism is
Opening and closing the shutter because the opening and shutter for loading and unloading the disk are not formed in a slit shape that is substantially the same shape as the cross section in the radial direction of the disk, and because the shutter can be easily rotated against the urging force of the spring. Then, the disc can be inserted into the apparatus at any time. This means
For example, a plurality of discs are accidentally inserted into the device by the user while the shutter is closed during operation of the device,
Or, it is expected that foreign matter is inserted into the apparatus, and in some cases, not only damage to the disc, but also a failure of the disc playing apparatus.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has a slit formed in a disk loading / unloading section (4) having substantially the same shape as the radial cross section of the disk.
(21) Install (42) on the front panel (2) and revolving door (41),
And, only when the slit (42) of the revolving door (41) coincides with the slit (21) of the front panel (2), by the rotation control device that rotates the revolving door to the door fully open position in accordance with the loading and unloading of the disk, Allows insertion or ejection of a disc to prevent damage to the disc and malfunction of the disc playing device.

A second object is to control the rotation of the revolving door (41) so that the disc is sandwiched between the slits (21) of the front panel (2), and the revolving door (41) is rotated in this state to recycle the disc. Solve the problem of possible damage.

[0009]

[0010]

[0011]

In order to solve the above-mentioned problems, the present invention firstly rotates and stops a magazine (3) which can be substantially radially accommodated in a state where a disk on which information is recorded is set up. The disc is inserted or ejected in a disc loading / unloading section (4) provided on the side of the rotation transfer path of the magazine and a disc playing apparatus for transferring the disc between the playing section (9) and the magazine (3). A slit (42) for discharging is provided on a cylindrical rotating door (41), and the rotating door is rotatably supported behind a slit (21) provided on a front panel (2), and the rotating door is The first and second stop positions are taken in accordance with the rotation of (41), and the slit (42) is aligned with the slit (21) of the front panel (2) at the first stop position to insert or eject a disk. At the second stop position, the slit (42) is removed from the slit (21) of the front panel (2). The slits (21) and (42) are provided with an interval of a predetermined width in the height direction at the center in the length direction of the slits (21) and (42). A parallel portion is formed, and the slit width is gradually narrowed in the vertical direction from the parallel portion,
And a disk playing device characterized in that the upper and lower ends thereof are formed to have substantially the same width as the thickness of the disk. Secondly, a disk on which information is recorded can be stored in a substantially radial state in a standing state. The disk loading and unloading unit provided on the side of the magazine rotation transition path for rotating and stopping the magazine (3)
(4) In a disk playing device for transferring a disk between the playing section (9) and the magazine (3), a slit (42) for inserting or discharging a disk is formed in a cylindrical rotating door (41). The revolving door is rotatably supported behind a slit (21) provided in the front panel (2) and the revolving door is provided.
The first and second stop positions are taken in accordance with the rotation of (41), and the slit (42) is provided at the first stop position by the front panel (2).
Only when the slit (21) coincides with the slit (21), the disc is allowed to be inserted or ejected, and at the second stop position, the slit (42) is inserted or ejected to conceal the slit (21) of the front panel (2). A spring (47) that is connected to a hook (45) provided at the upper end of the revolving door (41) and that constantly urges the revolving door in the closing direction. A slider (410) connected to the upper end of the revolving door (41) and sliding horizontally along the front panel (2) to rotate the door, and one end of the slider abutting on the hook (45). Possibly engaging torsion spring
(440) a door opening and closing drive (400), and the slider
(410) A door full-open detection switch (SW2) that is provided along the transition path and detects the first stop position and a door full-close detection switch (SW1) that detects the second stop position. The present invention provides a disk playing device characterized by the following.

[0012]

[Operation and effect] First, the disk loading / unloading section (4)
In addition, slits (21) and (42) formed substantially in the same shape as the cross section in the radial direction of the disk are provided on the front panel (2) and the revolving door (41), and the revolving door is opened and closed according to the insertion and removal of the disc. Since the rotation control device for rotating to the fully open position is provided, the loading or unloading of the disk is allowed only when the slits (21) and (42) match by the rotation of the rotary door (41), and the slit (21) ( If (42) does not match, loading or ejecting of the disc is prevented. That is, for example, the slit of the revolving door (41)
In the closed state where (42) is closed, the rotating door cannot be rotated by the disk from the slit (21) of the front panel (2) to insert the disk. Accordingly, it is possible to prevent a user from inserting a plurality of discs into the disc playing apparatus and to insert foreign substances, thereby preventing damage to the disc and failure of the disc playing apparatus.

Second, the full-open door detection switch (S) for detecting the first rotation stop position of the revolving door (41) by the revolving control device.
W2) and a door full-close detection switch (SW1) for detecting the second rotation stop position of the revolving door (41), and the slit position of the revolving door (41) is controlled by the detection. And the revolving door (41) that opens and closes the slit (21) of the front panel (2),
The closing operation is performed by the spring (47), and the opening operation is performed by the slider (410) via the torsion spring (440) .Therefore, while the disc is sandwiched in the slit (42) of the revolving door (41), the slider (410) When the is slid in the closing direction, the revolving door (41) does not rotate and the disc is not damaged.

[0014]

[0015]

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The mechanism will be described including the configuration and the operation and effect.

"Overall outline" (FIG. 1, FIG. 2, FIG. 3, FIG. 1)
The embodiment is a disk playing device in which an audio signal is recorded by using a laser, and is a playing device dedicated to a 12 cm disk out of two standard sizes of a disk, 12 cm and 8 cm. It is needless to say that the present invention is not limited to this and can be implemented in various disc-shaped recording medium playing devices.

A disk storage magazine (3) is rotatably provided in a horizontal plane on a base chassis (1) of the disk playing device, and a disk loading / unloading unit (4) and a disk loading / unloading unit (4) are provided outside a rotation transfer path of the magazine (3). A disk playing section (9) is provided.

Disk loading / unloading section (4) and playing section (9)
Are 135 degrees apart from the center of rotation of the magazine (3), in order to make the entire performance device most compact.

The magazine (3) can accommodate 24 disks D in a radial manner, and a loading / unloading device (6) provided in a disk loading / unloading section (4) allows loading / discharging of the disk D into the magazine (3) from outside. The disc is ejected from (3) to the outside.

The loading and unloading of the disc, the selection of performance, and the stop of performance are performed by an ON-OFF button (22), a play button (23), and a stop button (24) provided on the front panel (2) of the performance apparatus shown in FIG. The operation is performed by operating the open / close button (25) and the numeric keypad (26). For example, if the user selects a disc to be played, the magazine (3) rotates and the disc is transferred to the playing section (9). The disc is conveyed, and the disc is sent out to the playing section (9) by the playing side transfer device (6a).

When the performance is completed, the disc is loaded into a magazine.
Return to (3).

The operation of various buttons on the front panel (2) will be described later.

In FIG. 2, M1 to M7 are drive motors for operating the following mechanisms, SW1 to SW8 are switches for detecting the operation end position of the mechanisms, SE1 to SE8 are sensors for disc size and disc passing discrimination, and SE9.
Is a sensor for detecting the rotation angle of the magazine, and each indicates a schematic arrangement position.

"Magazine (3)" (see FIGS. 3, 4, 5, and 8) The magazine (3) is formed in a thick and substantially disk-shaped body by injection molding of a synthetic resin, and has a cylindrical portion provided at the center. (39) is rotatably fitted to a support column (10) protruding from the base chassis (1).

On the upper surface of the magazine (3), 24 disk holding grooves (31) are formed in a substantially radial manner at equal intervals.
Has an opening at the side of the outer peripheral wall of the magazine (3), and a base end thereof abuts the cylindrical portion (39).

The reason why the number of the disc holding grooves (31) is set to 24 is that the outer diameter of the magazine (3) is made as small as possible, and the design is designed to accommodate as many discs as possible. For the reason, the number of the disc holding grooves (31) is not limited.

Each disk holding groove (31) of the embodiment is a magazine.
Although it is completely coincident with the radial direction of (3), the magazine (3)
It is also possible to provide a disk holding groove from the central cylindrical portion (39) in the tangential direction, and the expression of the disk holding groove (31) as being substantially radial means that the latter is included.

Further, in the embodiment, the disc holding groove (31) is formed in a vertical plane with respect to the base chassis (1). It will be housed standing in a tilted state,
The disk housing can be made smaller in the height direction.

Each disc holding groove is provided on the upper surface of the magazine (3).
Next to (31), groove numbers from No. 1 to No. 24 are sequentially attached in the counterclockwise direction.

As shown in FIG. 8, the groove bottom of the disk holding groove (31) has a central portion in the length direction at the bottom of the opening (3) to the outer periphery of the magazine.
5mm lower than 1a).

The disk holding groove (31) gradually narrows to the groove bottom side and the rotation center side of the magazine (3) over the entire length, and the width of the groove bottom is slightly smaller than the thickness of the disk over the entire length. It is formed large.

FIG. 4 shows a state in which the magazine (3) is viewed from the back side.
A slit (32) is formed through the bottom surface of (3). The disk D fitted in the disk holding groove (31) contacts a plurality of locations (31a) (31b) (31c) (31d) on the groove bottom as shown in FIG. Therefore, the disk recording surface is supported with almost no play, and the disk recording surface does not contact the groove wall.

A ring-shaped elastic member (30) is mounted on the outer periphery of the upper end of the central cylindrical portion (39) of the magazine (3). The elastic member (30) starts from the lowest point (31c) of the groove bottom of the disc holding groove (31).
The height H in the vertical direction up to the upper edge is 6 cm, which corresponds to the radial length of the disk D. By raising the upper edge (31e) of the upper end of the disk holding groove (31) from the lowest position of the groove bottom supporting the disk by the radial height of the disk, the upper edge (3
The disk can be stably supported by sandwiching the edge of the disk in 1e).

The ring-shaped elastic member (30) prevents the disk D from directly hitting the cylindrical portion (39) and generating an impact sound when the disk D falls into the disk holding groove (31).

As shown in FIG. 4, at the bottom of the magazine (3), an annular tooth surface (33) for rotational driving and an annular rib (34) are formed concentrically, and the rotational position of the magazine (3) is determined. A contact plate (35) is provided.

As shown in FIG. 5, the magazine (3) has the ribs (34) on the base chassis (1) as shown in FIG.
Positioning in the height direction is performed on a plurality of receiving rollers (12) arranged on an imaginary circle concentric with the center cylindrical portion (39)
Is fitted to the support column (10) to stop the lateral movement.

As shown in FIG. 5, the magazine (3) has two
Magazine rotation motor (M3) via step gear (310) (320)
Connected to.

The outer peripheral portion of the large gear of the two-stage gear (320) having the small gear (330) meshing with the annular tooth surface (33) of the magazine (3) has two through holes at opposite positions on the diameter line. Holes (340) and (340) are opened.

A count sensor is mounted on the base chassis (1) such that the large gear of the two-stage gear (320) is partially sandwiched from above and below.
(SE9) is provided, and the count sensor (SE9) counts the passage through the through hole (340).

When the two-stage gear (320) makes a half turn, the magazine (3) rotates by 15 degrees, that is, by one pitch of the disk holding groove (31).

As shown in FIG. 5, on the base chassis (1), the lever (37) approaches the rotation transition path of the contact plate (35) of the magazine (3) and the lever (37) is fixed around the shaft (37a). It is provided so as to be rotatable in the range. Lever (37) has one free end hitting plate
A spring (38) is urged so as to protrude into the rotation transition path of the peak (36) formed in (35), and a detection switch (SW5) is provided in the rotation transition path of the lever (37). I have.

When the lever (37) is rotated by hitting the peak (36) of the hitting plate (35) and the detection switch (SW5) is operated, the disk holding groove (31) of No. 1 of the magazine (3). The mounting position of the hit plate (35) with respect to the magazine (3) is determined so that the bracket (3) faces the disk loading / unloading section (4) described later.

When the disk holding groove 31 of No. 1 reaches the disk loading / unloading section 4, the magazine drive 2
Of the two through holes (340) and (340) opened in the step gear (320),
One through hole (340) corresponds to the position of the count sensor (SE9).

The position detection switch (SW) of the disk No. 1
When 5) and the count sensor (SE9) work simultaneously, No.
It is detected that one disk holding groove (31) is located at the disk loading / unloading section (4).

When the ON-OFF button (22) of the front panel (2) is turned ON, the magazine (3) is always set to No.
The first disk holding groove (31) is rotated so as to face the disk loading / unloading section (4), and the operation proceeds to the next operation.

"Disc upper guide member (5)" (FIG. 1,
(See FIGS. 3, 6 to 8.) A guide member (5) for guiding an upper part of a group of disks housed in the magazine (3) is provided above the magazine (3).

The guide member (5) has a plurality of leg pieces (50) and (51) projecting downward at a central portion and an outer peripheral portion thereof.
Is a supporting column penetrating the central cylindrical portion (39) of the magazine (3).
Each of the outer leg pieces (51) is fitted on and supported by a guide member support column (11) protruding from the base chassis (1), and the guide member (5) does not rotate. .

FIG. 7 is a perspective view in which the guide member (5) is turned upside down. An annular groove-shaped guide surface (52) is formed around the center leg (50), and the center leg (50) is formed. The cross-sectional shape of the guide surface (52) cut in the radial direction centered on ()) substantially matches the outer peripheral curvature of the disk.

As shown in FIG. 8, the guide surface (5) of the guide member (5) faces the disk D stored in the magazine (3).
Even if the player touches the upper part of the disk 2) and moves or reverses the playing device while the disk is stored, the disk does not escape from the magazine.

As shown in FIG. 7, on the annular groove-shaped guide surface (52) of the guide member (5), a disk loading / unloading section (4) and a playing section (9) are arranged around a center leg piece (50). ), Two guide grooves (53) and (54) are opened in the radial direction of the guide member (5) at an interval of 135 degrees as in the case of the guide groove (5).
3) (54) is open at the side edge of the guide member (5).

The guide grooves (53) and (54)
Corresponding to the positions of the ejection unit (4) and the performance unit (9), the delivery of the disc to the magazine (3) at that position is permitted.

The guide member (5) is provided with a substantially triangular notch (55) from the outer periphery to the center leg (50) side, and a lid (56) is detachably attached to the notch. Can be

The inner surface of the lid (56) is formed with a guide surface (52a) which is continuous with the guide surface (52).

Without removing the entire guide member (5),
By removing the lid (56), the disc can be removed from the magazine (3). When repairing the malfunction of the performance device, the repair contractor immediately removes the disc and hands it over to the user, and returns only the performance device. It is convenient because it can be repaired and the trouble of losing the disk can be avoided.

"Disc loading / unloading section (4)" (see FIGS. 2, 6, 12 to 17) As shown in FIG. 12, a slit (21) for taking in and out a disc is provided at the center of the front panel (2). It is set up vertically.

A rotary door (41) for opening and closing the slit is provided behind the slit (21) of the front panel (2). As shown in FIG. 2, an insertion guide member (500), Further, a disk transfer device (6) to the magazine (3) is provided at the rear thereof to constitute a disk loading / unloading section (4).

The revolving door (41) is formed by injection molding of a synthetic resin. As shown in FIG. 13, the revolving door (41) has a vertically long cylindrical shape when viewed from the front panel side, and has two plate members (40) (40) in the center.
Is provided, a vertically elongated slit (42) through which the disk passes is formed between the plate members (40) (40).

The rear peripheral wall of the revolving door (41) is omitted for convenience in manufacturing.

The slit (42) is slightly longer than the diameter of the disk.

The interval between the slits 42 is the widest in a range W of about 15 mm in the height direction at the center in the length direction of the slit, and the slit width gradually decreases in the vertical direction from the wide range W. The upper and lower ends are formed to have a width that allows the disk to pass with little room.

Further, the slit (42) is provided on the front panel (2).
The side and the opposite side of the opening edge are formed so as to extend outward over the entire length.

Accordingly, when the disk D passes through the slit (42), even if the disk 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 disk and the signal recording portion of the disk is It does not come into contact with the side wall of the slit, so that damage to the signal recording surface can be prevented.

The slit (2) of the front panel (2)
1) and the disk insertion guide port (510) of the insertion guide member (500) described later is formed in the same manner as the slit (42) of the revolving door (41) so that the signal recording surface of the disk D does not rub against the side wall. Have been.

The revolving door (41) is provided so that the shafts (44) (44) projecting from the center of the upper and lower end plates can freely rotate on ribs (not shown) projecting from the rear surface of the front panel (2). As shown in FIG. 15, normally, the arc wall plate (43) faces the slit (21) of the front panel (2) and closes the slit (21). It is rotated clockwise about 60 degrees by the door opening and closing drive (400) described later, and the slit (42)
To the slit (21) of the front panel (2).

At the lower end of the revolving door (41), as shown in FIG. 14B, stoppers (46) (46) projecting from the protruding piece (27) of the front panel (2) to restrict the rotation angle of the door are projected. ing.

As shown in FIG. 16, a hook (45) protrudes from the upper end of the revolving door (41). The hook (45) has a weak urging force for constantly urging the door in the closing direction and a spring (47). The door opening / closing drive device (400) is linked.

The door opening / closing drive (400) includes a front panel
A slider (410) that slides horizontally along (2) is provided with a torsion spring (440), and one end of the spring is connected to a rotating door (41).
It is extended so that it can contact the hook (45).

The slider (410) has a rack surface (420) formed in the sliding direction, and a pinion (450) is formed on the rack surface (420).
Are engaged.

As shown in FIG. 6, the slider (410) and the pinion (450) are arranged on the disk upper guide member (5). A door opening / closing motor (M1) is attached to the guide member (5), and a pinion is operated by the motor (M1).
(450) is driven to rotate, and the slider (410) slides.

In FIGS. 15 and 16, the slider (410)
Slides to the right, one end of the torsion spring (440) on the slider (410) hits the hook (45) of the revolving door (41) and the spring (440) is compressed, closing the revolving door (41). The rotating door (41) is rotated in the clockwise direction, that is, in the opening direction, by overcoming the force of the spring (47) that is being biased.

When the slider (410) slides to the left, the torsion spring (440) separates from the hook (45) of the revolving door (41) and the urging force on the revolving door (41) disappears.
The door (41) rotates counterclockwise by the force of a spring (47) that biases the door in the closing direction, and the wall (43) of the door (41) cuts the slit (21) of the front panel (2). Close up.

A door full-close detection switch (SW1) and a door full-open detection switch (SW2) are provided along the transition path of the slider (410), and when the slider (410) slides to a position where the revolving door is fully closed, The protrusion (43) provided on the slider (410)
(0) activates the door full-close detection switch (SW1) to stop the door opening / closing motor (M1), and if the slider (410) slides to a position where the revolving door is fully opened, the protrusion (430) opens the door. Operate the full open detection switch (SW2) to open and close the door open / close motor (M1)
To stop.

As described above, the slider (410) and the revolving door (4)
1) is not connected by a rigid body and the torsion spring (4
Open the revolving door (41) via the (40), and the spring (47) with a weak biasing force
In order to close the revolving door (41), the slider (410) slides with the disc sandwiched between the revolving door (41) and the spring (47) force in the closing direction acts on the revolving door (41). Even the revolving door
In (41), the rotation is stopped while the disk is bitten, and the disk is not destroyed.

Further, on the rear surface of the front panel (2), there is provided a disk biting detection switch (SW3) for detecting the fully opened state of the revolving door (41) by hitting the hook (45) of the revolving door (41). Have been.

As described above, the slider (410) and the revolving door (4)
1) is not connected by a rigid body and the torsion spring (4
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) to operate the door full-close detection switch (SW1). Assuming this case, the disk biting detection switch (SW3)
While detecting the fully opened state of the door, the next operation cannot be performed and the safety is further improved.

An insertion guide member (500) is fixedly provided near the revolving door (41) and behind the revolving door (41), straddling the base chassis (1) and the disc upper guide member (5). You.

As shown in FIG. 17, the insertion guide member (500) is an end plate (540) (540) between the upper ends of the two plate members (520) (530).
In the same manner as the slit (21) of the revolving door (41) between the plate members (520) (530), a disk insertion guide port (510) having a shape that does not rub against the recording surface of the disk is formed. I have.

The plate members (520) and (530) are respectively provided with four through notches (550) at opposing positions. The through notches are provided with six sensors (described later) for detecting the size of the disk. Among SE1) to (SE6), the sensors are opened corresponding to the arrangement positions of the first sensor (SE1) to the fourth sensor (SE4), and allow passage of sensor light.

[Disc Delivery Device (6)] (See FIGS. 2, 8, 17 to 22) A delivery device (6) is provided behind the insertion guide member (500).

The delivery device (6) is provided near a pair of rollers (61) and (62) which are arranged close to the insertion guide member (500) and transports the disk D therebetween, and is provided behind the rollers (61) and (62). Kick-out member that is slidably mounted on the base chassis (1) and kicks out the disk D on the magazine (3) toward the rollers (61) and (62).
(7).

As shown in FIG. 17, two rollers (61) and (62)
The shafts (601) and (602) projecting from the centers of the upper and lower ends are rotatably supported by roller support members (63) and (64), and the roller support members (63) and (64) are attached to the base chassis (1). ) And the disc upper guide member (5).

In FIG. 17, the left roller (61) is held at a fixed position in contact with the surface of the disk passing through the center of the width of the insertion guide port (510) of the insertion guide member (500). Gear (67) is mounted.

The other roller (62) has a shaft (602) at the upper and lower ends and a notch (65) at the upper end of the roller support member (64).
(61) is fitted in a state where there is enough room to approach and separate,
The other roller (61) is urged by the spring (66), and the two rollers are always in contact.

The side opening width of the notch (65) of the roller support member (64) is smaller than the diameter of the shaft (602),
The escape of (602) is prevented.

As shown in FIG. 18, the kick-out member (7) is slidably provided on the base chassis (1) from the support column (10) for supporting the magazine to between the rollers (61) and (62). At the rear end, a push piece (71) is provided which projects into the bottom slit (32) of the magazine (3) and kicks the disc toward the rollers (61) and (62). A guide slot (72) is opened in a direction orthogonal to the guide.

The positioning roller (61) and the kick-out member (7)
Are connected to a common driving device (705).

As shown in FIG. 19, the drive unit (705) connects the gear train (700) to the loading / unloading side loading motor (M2) mounted on the base chassis (1), and connects the gear train (700). The localization roller (6) is attached to the large gear (710) of the two-stage gear (730) on the downstream side.
1) Small gear of two-stage gear (730) meshing with gear (67) at lower end
(720) meshes with the control gear (73) via the intermediate gear (740),
A shaft (77) protruding from the control gear (73) is slidably fitted in the guide slot (72) of the kick-out member (7). Not only the driving device (705) but also the gears used in the mechanism of the present embodiment are all made of synthetic resin.

As shown in FIG. 20, the intermediate gear (740) and the control gear (73) are provided with recesses (13) formed in the base chassis (1).
Is freely rotatable. The recess (13) has an intermediate gear (74
The small circular recess (15) in which the control gear (73) fits and the large circular recess (14) in which the control gear (73) fits are formed so as to be continuous.

Under no load, the lower surface of the intermediate gear (740) rotates integrally with the intermediate gear (740).
Release 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) projecting sideways in a V-shape.

Base chassis in which intermediate gear (740) fits
The small circular concave portion (1) of (1) is provided with an arc hole (16) in which the bent portion of the rotation restricting piece (760) fits, and the rotation restricting piece (760) can rotate by a margin of the hole. .

The arm piece (770) projects into a large circular recess (14) into which the control gear (73) fits.

The control gear (73) is partially formed with a tooth surface (76), and both ends of the tooth surface (76) are cut out (74) (74) extending in a direction approaching each other along the tooth surface (76). 75) has been set up, giving elasticity to both sides of the tooth surface (76).

The kick-out member is provided on the upper surface of the control gear (73).
A shaft (77) that fits in the guide slot (72) of (7) is protruded, and the lower surface approaches the notches (74) and (75) near the outer periphery, and the contact piece (78)
(79) is protruding.

When the disc is stored in the magazine (3), the loading / unloading side loading motor (M2) is operated, and FIG.
As shown in FIG. 1, the two-stage gear (730) rotates clockwise, and the localization roller (61) rotates in a direction to draw the disk.

The intermediate gear (740) meshed with the small-diameter gear (720) of the two-stage gear (730) rotates counterclockwise, and the control gear (73) rotates clockwise to form the kick-out member (7). Retreat
(FIG. 21 shows a state where the kick-out member is in the retracted position).

The hanging plate (75) on the lower surface of the intermediate gear (740)
(0) 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, and only the intermediate gear (740) rotates.

When the kick-out member (7) is retracted, the member
(7) The pushing piece (71) on the disc (3) is the disc holding groove (3) of the magazine (3).
There is no problem in getting out of 1) and inserting the disk into the disk holding groove (31).

Even if the kick-out member (7) reaches the retreat end, the two-stage gear (730) continues to rotate, the localization roller (61) continues to rotate and pulls in the disk, and a disk detection sensor (described later) It is detected that SE1) to (SE6) have passed the localization roller (61), and after a lapse of a predetermined time, in this embodiment, 0.5 seconds, the loading / discharging side loading motor (M2) is stopped. As shown in FIG. 8, when the disk has passed the rollers (61) and (62), the disk is inserted into the disk holding groove (3) of the magazine (3).
It reaches the back of 1) and falls into the low bottom of the disk holding groove (31) at the moment when it is separated from the rollers (61) and (62).

In FIG. 8, the self-weight rolling stroke A of the disc is larger than the distance B between the disc dropped into the disc holding groove (31) and the roller (61).

As shown in FIG. 21, while the two-stage gear (730) is rotating, the intermediate gear (740) also continues to rotate, but when the kicking member (7) reaches the retreat end, the control gear The notch (74) of (73) corresponds to the intermediate gear (740), the intermediate gear (740) idles, no torque is transmitted to the control gear (73), and the mechanism is not damaged.

The disc is removed from the magazine (3) by the rollers (61) (6).
2) When discharging to the side, loading / discharging side loading motor
(M2) rotates in the opposite direction to the above, and as shown in FIG.
The two-stage gear (730) rotates counterclockwise, and the rollers (61) (62)
Is rotated in the disc ejection direction.

The intermediate gear (740) rotates clockwise. At this time, the hanging plate (750) also rotates, and the arm (770) kicks the contact piece (78) on the lower surface of the control gear (73). The control gear (73) is rotated slightly counterclockwise.

When the control gear (73) rotates slightly counterclockwise, the intermediate gear (740) meshes with the tooth surface (76) of the control gear (73), and the control gear (73) rotates counterclockwise. Drive.

[0108] The hanging plate (75) on the lower surface of the intermediate gear (740)
0) rotates following the clockwise rotation of the intermediate gear (740), but stops when the bent end of the rotation restricting piece (760) hits the end of the arc hole (16). The intermediate gear (740) keeps rotating.

By the counterclockwise rotation of the control gear (73),
The kicking member (7) moves forward, enters the slit (32) at the bottom of the magazine (3), and kicks the disk in the disk holding groove (31) until the positioning rollers (61) and (62) bite. (FIG. 22 shows the kick-out completion position of the kick-out member).

The kick-out member (7) applies the disk to the roller (61).
Notch (75) of control gear (73) when kicking out to (62)
Corresponds to the intermediate gear (740), the rotation of the control gear (73) is stopped, and the mechanism is not damaged even if the intermediate gear (740) continues to rotate.

When the disk D passes through the rollers (61) and (62), the disk detection sensor described later operates to stop the loading / unloading side loading motor (M2).

When the disc is stored in the magazine (3) again, the loading / unloading side loading motor (M2) is operated, the two-stage gear (730) rotates clockwise, and the roller (61) rotates the disc D. Rotate in the direction to pull in.

The intermediate gear (740) meshed with the small-diameter gear (720) of the two-stage gear (730) rotates counterclockwise, and at this time, the unscrewing that rotates counterclockwise together with the intermediate gear (740). The arm (770) of the plate (750) is a contact piece (79) on the lower surface of the control gear (73).
And slightly rotate the control gear (73) clockwise to engage the tooth surface (76) of the control gear (73) with the intermediate gear (740).

The subsequent operation is as described above.

The retracting position detection switch (SW4) for the ejection / ejection side ejection member corresponding to the retraction position of the ejection member (7).
When the switch (SW4) does not detect that the kick-out member (7) is at the retracted position, the magazine rotation motor (M3) is not energized,
The magazine (3) is prevented from rotating while the pushing piece (71) of the kick-out member (7) is fitted in the slit (32) of the magazine (3).

"Mounting of motor" (FIGS. 9, 10 and 1)
1) The loading / unloading side loading motor (M2) is mounted on a plate (701), and the plate (701) is a receiving plate (18) protruding inward on a side wall (100) of the base chassis (1). And it is fixed to a boss (17) protruding from the base chassis (1) with screws (19).

The gear (780) fixed to the motor shaft is a plate
(701) penetrates downward.

The plate (701) is provided with a plurality of positioning notches (702) (703) (704) and screw insertion holes (704) (704).

The position where the gear (780) of the motor shaft meshes with the gear (790) at the upstream end of the gear train (700) is provided on the receiving plate (18) and the base chassis (1) on the base chassis (1). Corresponding to, the projections (180) (180) (170) that fit into the notches (702) (702) (703) of the plate (701) are provided, and the screw insertion holes (704) ( Screw holes (171) and (181) are opened corresponding to (704).

On the side wall (100) of the base chassis (1), it is difficult to align the plate (701) with the protrusions (180) (180) and the screw holes (171) (181) from directly above. Disturbance piece (1
10) is protruding.

The height interval between the upper end of the projection (180) and the lower surface of the baffle (110) is larger than the thickness of the plate (701).

Therefore, the loading / unloading side loading motor
In order to fix the plate (701) to which the (M2) and the gear (780) are attached to the base chassis (1), as shown in FIG. The gear (780) of the motor shaft engages with the mating gear (790) from the side, and the tooth portions of the gears (780) and (790) Can be prevented from colliding from above and from below to damage the teeth.

The above-described motor mounting structure is also used for mounting other motors used in this embodiment. "Disc Detection" (see FIGS. 23 and 24) As shown in FIG. 23, the disc loading / unloading section (4) has six sensors (S
E1) (SE2) (SE3) (SE4) (SE5) (SE6) are deployed. Each sensor is configured by arranging a light emitting element and a light receiving element to face each other across a transition path of the disk.

Outside the rollers (61) and (62), the first to fourth four sensors (SE1) (SE2) (SE
3) (SE4) is provided, and a fifth sensor (SE5) and a sixth sensor (SE6) are provided inside the rollers (61) and (62).

The first sensor (SE1) is located at the position where the center of the 12 cm disk passes, and the second sensor (SE2) is located at the position shown in FIG.
When the 8 cm disk d3 passes below the transition path, the upper part of the disk slightly comes off as shown in FIG.
(SE3) is at a position for detecting the passage of the lower end of the disk, and the fourth sensor (SE4) is at a position for detecting the upper portion of the 12 cm disk. The fifth sensor (SE5) is the first sensor (SE5).
Located between 1) and 3rd sensor (SE3), 6th sensor
(SE6) is the second sensor (SE2) and the fourth sensor (SE4)
Between the fifth sensor (SE5) and the sixth sensor
(SE6) is 8c at the almost middle position of the transition path of the 12cm disk.
m When the disk passes, the fifth sensor (SE5) or the sixth sensor
The sensors (SE6) are arranged in a positional relationship that can be detected by at least one of the sensors (SE6).

In the following description of the operation, each sensor (SE1)
(SE6) is turned ON when light passes through.

<At the time of loading the disc> The user bites the disc between the rollers (61) and (62).

Detection procedure of 12 cm disk The first sensor (SW1) changes from ON to OFF, the loading / unloading side loading motor (M2) rotates, and the transport rotating rollers (61) and (62) rotate as described above to pull in the disk (FIG. 23). State of the disks D1 to D2).

[0127] 2. Second sensor (SE2) to sixth sensor
(SE6) are all OFF (detection of a 12 cm disk) (the state of disk D3 in FIG. 23).

3. The first sensor (SE1) is ON (by passing through the center hole of the disk), and the fifth and sixth sensors (SE1)
5) (SE6) is OFF.

4. Fifth and sixth sensors (SE5) (SE
6) is ON. The disc D slides down into the disc holding groove (31).

[0130] 5. Fifth and sixth sensors (SE5) (SE
6) After a lapse of a short time from the ON of 0.5), in the embodiment, after a lapse of 0.5 seconds, the loading / ejection side loading motor (M2) stops,
Further, the door opening / closing motor (M1) operates to close the revolving door (41).

The presence of the disk D in the disk holding groove (31) is stored in a control device described later.

It is to be noted that the disk loading / unloading section is performed 0.5 seconds after the fifth and sixth sensors (SE5) and (SE6) are turned on.
The loading motor (M2) on the (4) side is stopped, and the door opening / closing motor (M1) is activated by taking into account the slippage of the disc and the rollers (61) and (62) for transporting the disc.
This is to prevent the roller from stopping rotating with the disk being sandwiched between (62) and the rotating door (41), and moving to the next operation.

Detection procedure of 8 cm disc As shown in d1 of FIG. 24, the fourth sensor (SE4) and the sixth sensor (SE6) are OFF and the third sensor (S4) is OFF.
E3) and the fifth sensor (SE5) are ON.

Alternatively, as shown at d2 in FIG. 24, when the third sensor (SE3) and the fifth sensor (SE5) are OFF,
Fourth sensor (SE4) and sixth sensor (SE6)
N.

Alternatively, as shown at d3 in FIG. 24, one or both of the fifth sensor (SE5) and the sixth sensor (SE6) are turned off, and the third sensor (SE3) and the fourth sensor (SE3) are turned off.
Sensor (SE4) is ON.

[0136] 2. Loading / discharging side loading motor (M
2) rotates in the opposite direction to the above, and the transporting rotation roller (61)
(62) is rotated in the disc ejection direction.

[0137] 3. The fifth sensor (SE5) and the sixth sensor (SE6) are turned on.

[0138] 4. Loading / discharging side loading motor (M
2) Stops (Rotating rollers for transporting 8cm discs (61) (62)
Is held in a biting state).

If the user re-inserts the 8 cm disc from the above state 4, the state returns to the above state 2 by the above-described detection operation.

When the user pulls out the 8 cm disk from the transport rotation rollers (61) and (62) from the above state 4, the first sensor (SE1) is turned on, and the door opening / closing motor (M1) operates to rotate. The door (41) closes.

<During Ejection of Disc> By operating the open / close button (25) described later, the disc D housed in the disc holding groove (31) of a predetermined number of the magazine (3) is moved to the disc loading / unloading section ( The magazine (3) rotates and stops so as to correspond to the position of (4), and as described above, the transfer device (6) operates to rotate the rollers (62) and (63) in the disk ejection direction, and
The kick-out member (7) kicks out the disc and the rollers (61) (6
2) bite.

1. The third sensor (SE3) and the fourth sensor (SE4) are turned off.

[0143] 2. The fifth sensor (SE5) and the sixth sensor (SE6) are turned on.

[0144] 3. Loading / discharging side loading motor (M
2) is stopped (in this case, the 12 cm disk is held in a state of being sandwiched between the transport rotation rollers (61) and (62)).

Next, a. The first sensor (SE1) is ON (when the user pulls out the 12 cm disk from the transport rotating rollers (61) and (62)).

In this case, the door opening / closing motor (M1) operates to close the revolving door (41).

Or, b. The fifth sensor (SE5) and the sixth sensor (SE6) are turned on (when the user pushes in the 12 cm disc from the above state 3).

In this case, the loading / unloading side loading motor (M2) is operated to rotate the transport rotary rollers (61) and (62) to the disk pull-in side, and to load the 12 cm disk into the magazine.
Store in (3).

When the loading motor (M2) on the loading / unloading side rotates in the loading direction of the disc when the disc is left for a certain period of time in the above condition 3, the 12 cm disc is loaded into the magazine.
Put it back in (3).

As described above, when the disc is ejected, the disc is not completely ejected to the outer periphery of the rollers (61) and (62), but is held in a state of being bitten by the rollers (61) and (62). The disc does not fall down from the slit (21) of the front panel (2) and is not damaged.

It is to be noted that a known annular adapter is mounted on an 8 cm disc.
When a (not shown) is attached and the size is 12 cm, it goes without saying that the operation is the same as that in the case of the 12 cm size.

"Transfer unit 6a" (FIG. 2, FIG. 1)
8, see FIGS. 25 to 27) In accordance with the playing section (9), the disc in the magazine (3) is placed in the playing section (9), or the disc in the playing section (9) is placed in the magazine.
A delivery device (6a) for delivering to (3) is provided.

The delivery device (6a) slides on the base chassis (1) and kicks the disk on the magazine (3) in the same manner as the delivery device (6) on the side of the disk loading / unloading section (4). Ejecting member (7a) to be ejected, a pair of transport rotating rollers (61a) (62a) for transporting the disc in between, and an ejecting member (7a)
Playing side loading motor (M4) for driving the roller (61a) via the gear train (700a), an intermediate gear (740a) arranged between the kick-out member (7a) and the gear train (700a), control gear
(73a) and a detaching plate (750a) attached to the lower surface of the intermediate gear (740a).

A kicking member retreat position detection switch (SW6) is provided corresponding to the retreating end of the kicking member (7a).
Unless the switch detects the kick-out member (7a),
That is, the kick-out member (7a) is in the retracted position and the magazine
(3) The magazine rotation motor (M3) is not energized unless it is confirmed that no entry has occurred.

As described in the transfer device on the disk loading / unloading side, the pushing piece (71a) of the kick-out member (7a) enters the slit (32) at the bottom of the magazine (3) and the disk D is rolled. (61a) When the kicking is completed until biting into (62a), the playing side loading motor (M4) for driving the kicking member (7a) is stopped by the playing unit side disk detection sensor (SE7) (SE8) described later. And push piece (71a) of the kick-out member (7a)
Remains in the slit (32) of the magazine (3) to be described later, thereby preventing the magazine (3) from rotating carelessly during playing the disc.

When the disk is transferred by either the transfer device (6a) or the transfer device (6) on the side of the disk loading / unloading section (4), the disk kicking member ( 7), (7a) pressing piece (71) (71a)
Is electrically controlled so that the disc does not protrude into the bottom slit (32) of the magazine (3) so that the magazine (3) rotates carelessly during the transfer of the disc. Thus, it is possible to prevent the disk D from being damaged.

The delivery device (6a) on the playing side and the loading of the disc
The difference from the delivery device (6) on the ejection unit side is that the rollers (61) and (62) of the delivery device (6) of the disc loading / unloading unit (4)
The roller (61) on the drive side does not move from the home position, and only the other roller (62) moves to clamp or release the disc. The rollers (61a) and (62a) of 6a) are points where the two rollers (61a) and (62a) approach and separate from the transfer path of the disk and press or release the disk.

The two roller supporting members (63a) (64a) that rotatably support the upper and lower ends of the rollers (61a) (62a) are fixed between the base chassis (1) and the disk upper guide member (5). It is rotatably supported at the position.

A roller (61) provided with a driving gear (67a) at the lower end.
a) is the roller support member (63) while meshing with the gear (710a) at the downstream end of the gear train (700a) with which the gear (67a) meshes.
Revolves around the gear (710a) according to the rotation of a).

The two roller supporting members (63a) and (64a) are urged by springs (60) and (60) in the direction of pressing the rollers (61a) and (62a) together.

The shafts (68) and (69) projecting from the centers of the lower ends of the rollers (61a) and (62a) are used to open and close the rollers provided on the inner end side of the slide plate (8) provided on the base chassis (1). Cam groove (8
1) Fits in (82). Slide plate (8) is a kick-out member
Slide on the extension of the slide transition path of (7a).

As shown in FIG. 26, both cam grooves of the slide plate (8)
(81) and (82) are approaching parallel portions (810) and (820), outer inclined portions (811) and (821), and parallel portions (812) from the kick-out member (7a) toward the playing portion (9). When the slide plate (8) slides toward the kick-out member (7a), the gap between the rollers (61a) and (62a) is opened, and the clamping pressure of the disk can be released. Slide plate (8)
Slides away from the kick-out member (7a),
The space between the rollers (61a) and (62a) is closed, and the disk can be pressed.

As shown in FIG. 27, a head-side opening / closing cam groove (83) and a clamper-side opening / closing cam groove (85), which will be described later, are formed in the slide plate (8). A rack surface (88) is formed at the edge.

A gear (84) at the downstream end of a gear train (80) connected to a disk clamping motor (M5) for opening and closing rollers is engaged with a rack surface (88) of the slide plate (8).

"Playing part (9)" (see FIGS. 2, 25 to 33) The playing part (9) includes a disk housing case (91) for housing a disk supplied from the magazine (3), A head mounting body (92) and a clamper (93) are provided on both sides of the case so as to be capable of approaching and separating from each other, and rotatably clamp the disk in the case.

As shown in FIG. 28, as shown in FIG.
1) is formed by joining a plate member (912) and a plate member (913) each having a peripheral plate (910) protruding from three sides excluding the disk entry side, and having a flat vertically long shape with an opening at the disk entry side.

The case (91) approaches the rollers (61a) and (62a) with the opening directed between the rollers, and is fixed to the base chassis (1) above the slide transition path of the slide plate (8). Have been.

When the disk is accommodated in the case (91), the disk protrudes from the case opening toward the magazine (3), and a part of the disk is fitted in the magazine (3).

In the case (91), the disk has some allowance in the vertical direction and in the direction perpendicular to the disk entry transition path.

The turntable (922) on the following head mounting body (92) and the disk (933) of the clamper (93) can enter both plate members (912) and (913) of the case (91). Notch (914) (91
5) has been established.

As shown in FIG. 30, the head mounting body (92) includes a turntable (922) for rotating and driving the disk, a disk rotation motor (M6) for rotating and driving the turntable (922), and a read head. Head mount (923),
A head slide motor (M7) for driving the head mount (923) in the horizontal direction via a rack and a pinion is provided.

In the head mounting body (92), pivots (921) (921) projecting from both sides of the upper end are rotatably supported on the upper part of the disk storage case (91).

At the lower end of the head mounting body (92), two leg shafts
(924) (924) is protruded, and the leg shaft (924) is
It is slidably fitted in the head-side opening / closing cam grooves (83) (83) established in (8).

The clamper (93) is a disk storage case (91).
A disk (933) with a built-in magnet at a position corresponding to the turntable (922) has a little extra space on a frame (932) supported by the pivots (931) and (931) at the lower end of the frame so as to be swingable. It is configured to fit in the state.

A leg shaft (934) protrudes from the lower end of the frame (932). The leg shaft (934) is slidable in a clamper-side opening / closing cam groove (85) formed in the slide plate (8). I'm stuck.

When the slide plate (8) slides toward the magazine (3), the head mounting body (92) is used for the clamper-side opening / closing cam groove (85) and the head-side opening / closing cam groove (83). And the clamper (93) is rotated in a direction approaching each other about the pivots (921) and (931), and the slide plate (8) is moved to the magazine (3).
Slide away from the head mounting body (92)
And the cam groove (8) with respect to the sliding direction of the slide plate (8) so that the clamper (93) and the clamper (93) are rotated away from each other.
3) (83) and (85) are inclined. However, the clamper-side opening / closing cam groove (85) rotates to the side where the clamper (93) clamps the disc, and once between the turntable (922) and the center of the inner width of the case (91). After reaching the position for holding the pressure (FIG. 32), the groove shape is set so that the disc (933) is slightly rotated to the right so as to allow the disc (933) to rotate in the suction state on the turntable (922). Is determined.

At the center of the turntable (922), a conical convex portion (925) that fits into the hole of the disk protrudes, and the clamper (93)
The circular plate (933) has a conical concave portion (93) in which the conical convex portion (925) fits.
5) is formed, and as described above, the turntable (922) and the disc (93) are provided for the disc stored in the case (91).
3) approach each other, and the conical convex portion (925) and the conical concave portion (935) are fitted. At this time, the hole edge of the disc is
The disc is pressed by the turntable (922) by sliding the conical convex part (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 rightward as described above, and the disk (9)
Even when the pressing on the disk (33) is released, the disk (933) is attracted to the turntable (922), the core of the disk does not shift, and the disk does not contact the inner surface of the case (91). Can clamp the disk D.

The performance operation after the disk D is clamped is well-known and will not be described.

The cam groove (83) (83) (85) of the slide plate (8)
Roller (61a) by means of a roller opening and closing cam groove (81) (82)
(62a) opening and closing, turntable (922) and clamper (93)
The timing of clamping the disc by the roller (61
a) (62a) sends out the disk D to the disk storage case (91), and after the disk is clamped by the turntable (922) and the clamper (93), the rollers (61a) and (62a) open to remove the disk. When releasing the clamping pressure and returning the disc D from the playing section (9) to the magazine (3) after the performance is completed, the rollers (61a) and (62a) are closed to sandwich the disc, and then the turntable is turned on. The timing is set so that the clamp of the disk D by the clamp (922) and the clamper (93) is released. That is, upon delivery of the disk, the disk
Since the rollers (61a) (62a) or the turntable (922) and the clamper (93) are constantly pressed and held from both sides, during the delivery of the disc, the playing device is tilted by lifting the playing device or the like. Also, the delivery of the disk can be reliably performed.

As described above, the roller (61a) (62a) is opened and closed by the common slide plate (8), and the turntable (922)
Since the disk is clamped and released by the clamper (93) and the clamper (93), the operation is assured and no trouble occurs due to the timing deviation.

The rollers (61a) and (62) of the transfer device (6a)
The playing of the disk is performed with the disk fitted in a), but at this time, both rollers are separated from the transfer path of the disk and do not contact the disk, and there is no hindrance to the rotation of the disk.

As shown in FIG. 27, a clamp completion switch (SW7) and a clamp release switch (SW8) are provided along the transition path of the slide plate (8).

When the slide plate (8) has advanced toward the magazine (3) until the time when the clamping of the disk is completed, the clamp completion switch (SW7) detects the projection (89) on the slide plate (8). Stop the clamp motor (M5).

Until the point where the clamp of the disk is released,
When the slide plate (8) is retracted, the clamp release switch (SW8) detects the protruding piece (89) and detects the clamp motor (M5).
To stop.

As shown in FIG. 33, the roller approaches the rollers (61a) and (62a) of the transfer device (6a), and is located inside the rollers.
A sensor (SE7) and an eighth sensor (SE8) are provided.

The seventh sensor (SE7) includes rollers (61a) (62)
The disk D is provided at a position where it can be detected that the disk D has passed through and the disk D comes out of the disk D in a state where the disk D has reached the depth of the disk housing case (91).

The eighth sensor (SE8) is provided at a position where the presence of the disk D is detected when the disk D has reached the depth of the disk housing case (91).

During the performance, the next operation is not started unless the seventh sensor (SE7) detects the passage of the disk D, that is, detects the completion of the transport to the performance position.

While the eighth sensor (SE8) detects the presence of the disk D, the magazine rotation motor (M3) is not energized, and the magazine (3) does not rotate.

When returning the disk D from the playing position to the magazine (3), unless the seventh sensor (SE7) detects the passage of the disk D, that is, unless the completion of the accommodation of the disk in the magazine (3) is detected, Do not start operation.

As described above, the performance of the disk is performed with a part of the disk being played fitted in the magazine (3), so that the disk D is completely removed from the magazine (3). This can contribute to downsizing of the device as compared to a performance device for performing.

Incidentally, since information is recorded only on one side of the disc, if the disc is housed in the magazine (3) in the opposite direction, the signal reading head is used for the signal reading head.
OC reading is not possible. The reversely inserted disc inserted into the playing section (9) is immediately returned to the magazine (3) when unreadable is detected.

The returned disc is transported to the disc loading / unloading section (4) by rotating the magazine (3), and can be controlled so as to be immediately ejected, or when a plurality of discs are continuously played. The position of the reverse disk D is stored in a control device described later, and after all the disks have been played, the reverse disk D is loaded into and ejected from the disk.
It is also possible to transport to (4) and discharge to the outside.

[Front Panel and Button Operation] (See FIGS. 2 and 12) As shown in FIG. 12, the front panel (2) has a disc insertion / ejection slit (21) at the center and a display section (28) at the upper left. ),
At the upper right, a viewing window (29), an ON-OFF button (22), a play button (23), a stop button (24), and an open / close button (2
5) A ten-key (26) consisting of ten key buttons numbered from 0 to 9 is provided.

On the display section (28), various displays are made according to the mode of the performance device.

The viewing window (29) is for observing the storage state and the rotation state of the disk on the magazine (3).
An illuminating lamp (not shown) provided inside the device shines the disk in a rainbow color, and an excellent decorative effect can be obtained.

The operation of each of the above mechanisms by operating the buttons on the front panel will be briefly described. The eight switches (SW1) to (SW8), the nine disk detection sensors
(SE1) to (SE9) and the seven motors (M1) to (M7) are electrically connected to a control device (not shown) including a microprocessor and controlled according to a program.

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

The ON-OFF button (22) is turned ON.

The motor for rotating the magazine (M3) operates, and N
The magazine (3) rotates until the disk holding groove (31) of o.1 is located at the disk loading / unloading section.

<Playing a Disc> There are two types of operation procedures: operation A and operation B.

A performance operation is performed by operating the numeric key (26) to select a disc. For example N
o To select the disc No.14, use the numeric keys (26) 1 and 4.
Press the key.

Next, the play button (23) is pressed.

The magazine rotation motor (M3) operates,
The disc designated No. 14 is transported to the playing section (9).

With the operation as described in the description of the performance section, the delivery and performance of the disc from the magazine (3) to the performance section (9) are performed. When the performance is completed, the disc is moved to 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 disk is rotated, both the kick-out members (7) of the transfer device (6) on the side of the disk input / output unit (4) or the transfer device (6a) on the performance unit (9) side. ) (7
Unless the push pieces (71) and (71a) of a) are detected to have reached the retreat position (detected by SW4 and SW6), the magazine rotation motor (M3) is not energized and the magazine (3) The magazine with the pressing pieces (71) and (71a) fitted in the bottom slit (32)
(3) does not rotate and destroy the mechanism.

Performance operation Press the play button (23) without specifying the disc number.

In this case, N displayed on the display (28)
Magazine (3) until the disk of o. is located in the performance section (9)
Rotates and is played.

[0210] The display section (28) displays the operation performed immediately before the actual performance operation, for example, the No. of the disk that has performed operations such as performance and storage of the disk.

<Loading and Ejecting Disk> There are two types of operation procedures: operation a and operation b.

[0212] Loading / ejecting operation A Specify the disc No. with the ten keys (26) and press the open / close button (2
Press 5).

The magazine (3) rotates so that the disc holding groove (31) of the designated No. faces the disc loading / unloading section (4).

When a disk is present in the disk holding groove (31) of the designated No., the door opening / closing motor (M1) operates to turn the rotating door (41).
Is opened, and the transfer device (6) is operated by the loading / unloading side loading motor (M2) to eject the disk.

When there is no disc in the disc holding groove (31) of the designated No., the door opening / closing motor (M1) operates to turn the rotating door (4).
Open 1) to prepare for loading discs.

Loading / discharging operation: Press the open / close button (25) without specifying the disc number.

The magazine (3) is rotated, and the disc holding groove (31) of No. indicated on the display (28) is inserted into the disc.
The revolving door (41) is opened facing the discharge part (4).

If there is a disk D in the displayed disk holding groove (31), the disk D is ejected. If there is no disk D, the disk D is prepared for insertion.

<Performance stop operation> When the stop button (24) is pressed, the performance of the playing disk is stopped and the magazine (3) is stopped.
To its original position.

The disc playing apparatus does not have an eject button dedicated to ejecting a disc.
The disc is ejected by the operation of 5).

In each of the above operations, the following safety measures and other measures are taken in the form of electric circuits (partially given above).

<Related Magazine> a. The magazine (3) passes through a sensor for confirming that the disk D has been transported to the magazine (3), and is further rotated.
It does not rotate unless it detects that 1) is closed.

B. While the disk is playing, the magazine (3) is allowed to rotate and another disk can be inserted or ejected. However, another disk cannot be inserted into the disk holding groove (31) in which the disk being played is housed.

C. The magazine (3) does not rotate unless it detects that the disk kicking-out member (7) (7a) has escaped from the slit (32) of the magazine (3).

<Related Rotating Door> a. The revolving door (41) closes after passing a sensor that confirms that the disc has been transported to the magazine (3).

B. The revolving door (41) opens after the magazine (3) stops rotating, and does not open while the magazine (3) is rotating.

<Regarding Disc Ejection> a. When storing the disc in the playing section (9) in the magazine (3) with the stop button (24) or the open / close button (25), if the magazine (3) becomes full due to the storage,
When a new disk is to be inserted into the disk loading / unloading section (4), the localization roller (61) of the transfer device (6) rotates in the discharging direction, and the disk is automatically discharged.

Incidentally, the rotation of the localization roller (61) can be stopped to prevent the disk from being pulled in.

B. When the disc is mounted on the playing section (9) upside down, it detects that the TOC cannot be read, and ejects the reversed disc from the magazine (3).

[0230] 1. Insert the disk on the front panel (2)
The ejection slit (21), the slit (42) of the revolving door (41), and the insertion guide port (510) of the insertion guide member (500) are vertically sandwiched from the center in the height direction of the opening width and the disc is inserted. When the disc is inserted, the slit (21) (4
2) It is possible to prevent the recording portion of the disc from rubbing against the wall surface of the insertion guide port (510) to damage the disc.

Also, the slit (21) of the front panel (2)
Is closed except when the disc is inserted or removed, thereby preventing the insertion of foreign matter.

[0230] 2. The slit (2) on the front panel (2)
Since the revolving door (41) that opens and closes 1) is closed by a spring (47) and opened by a slider (410) via a torsion spring (440), the slit (42) of the revolving door (41) is used. Even if the slider (410) slides in the closing direction while the disc is sandwiched between), the revolving door (41) does not rotate and the disc is not damaged. In addition, the slider (410) moves in the door closing direction, and the fully closed moving end is the door fully closed detection switch.
Even if (SW1) is detected, the disc jam detection switch
While detecting that the revolving door (41) is in the fully opened state by (SW3), the next operation cannot be performed, so that the disk can be prevented from being damaged twice.

[0233] 3. 1st sensor (SE1)-6th sensor
By (SE6), it is possible to determine the disk size and prevent insertion of a disk of a size other than the specified size,
It is possible to prevent troubles caused by a disc of a different size entering the magazine.

[0234] 4. Since the magazine (3) rotates in a direction requiring a small rotation angle, the set time can be shortened.

[0235] 5. Since the upper guide member (5) of the disc can be partially removed, the guide member (5) can be used for take-out repair.
You can take out the internal disk without removing the whole,
It is convenient.

[0236] 6. Each disk holding groove (31) of the magazine (3)
Is formed to have a width for accommodating one disk D, to prevent double insertion, and to set the groove bottom of the disk holding groove (31) in the magazine.
With the simple configuration of lowering the intermediate portion from the outer peripheral side of (3), the magazine (3) can be stably supported, and the disc during rotation can be prevented from accidentally popping out.

[0237] 7. The disk holding groove (31) is gradually sandwiched between the groove bottom side and the rotation center side of the magazine (3) over the entire length, and the groove bottom width is formed slightly larger than the thickness of the disk D. The periphery can be supported with almost no play, and the disk recording surface can be prevented from contacting the groove wall.

[0238] 8. The ring-shaped elastic member (30) is mounted on the cylindrical part (39) at the center of the magazine where the back end of the disc holding groove (31) abuts, so that the impact sound when the disc D falls into the disc holding groove (31) is reduced. Can be suppressed.

[0239] 9. The upper edge of the upper end of the disk holding groove (31) is higher than the lowest position of the groove bottom supporting the disk by the radial height of the disk, and the disk can be stably supported with the upper edge sandwiching the edge of the disk. .

10. Since the performance of the disc D is performed while a part of the disc D is left in the magazine (3), the performance of the apparatus is smaller than that of a performance apparatus in which the disc D is completely escaped from the magazine (3). Can contribute to miniaturization.

[0241] 11. In the playing section (9), the transfer timing of the disc D is determined by the transport rollers (61a) and (62a) sending the disc D to the disc housing case (91), and the disc D by the turntable (922) and the clamper (93). Is completed, the rollers (61a) and (62a) are opened and the disc D
When the disc D is returned to the magazine (3) from the playing section (9) after the performance is completed, the rollers (61a) and (62a) are closed to sandwich the disc D, and then the turntable (922) The timing is set such that the clamp of the disk D by the clamper (93) is released. Therefore, at the time of delivery of the disc, the disc is constantly pressed and held from both sides by the rollers (61a) (62a) or the turntable (922) and the clamper (93). Even if it occurs, the disc is not dropped and the disc can be reliably delivered.

12. Opening and closing of the rollers (61a) and (62a) and the disk D by the turntable (922) and the clamper (93)
Clamping and unclamping are performed by sliding one slide plate (8), so that the operation is reliable and no trouble occurs due to a timing shift.

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

[Brief description of the drawings]

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

FIG. 2 is a schematic plan view of the disk 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 explanatory diagram of a magazine rotation and positioning stop device.

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

FIG. 7 is a perspective view of the bottom side of the disk 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 the revolving door.

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

FIG. 15 is a perspective view of a driving unit of the revolving door.

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

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

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

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

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

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

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

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

FIG. 24 is an explanatory diagram of a detection state of an 8-cm size disk.

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

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

FIG. 27 is a perspective view of a playing section.

FIG. 28 is an exploded perspective view of the disk storage case and the clamper.

FIG. 29 is a perspective view of a 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 mounting body and a clamper before clamping a disk.

FIG. 32 is an explanatory diagram of a state where a disc is sandwiched between a mounting body and a clamper.

FIG. 33 is an explanatory diagram of a detection state of a playing section 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 (3) Magazine (4) Disc loading / unloading section (8) Slide plate (9) Playing section (61a) Transport roller (62a) Transport roller (83) Head side opening / closing cam groove (85) Clamper Side opening / closing cam groove (92) Head mounting body (93) Clamper (922) Turntable (923) Head mounting base (932) Frame (933) Disk (M6) Disk rotation motor (M7) Head slide motor

Continuation of the front page (56) References JP-A-4-57248 (JP, A) JP-A-4-85757 (JP, A) JP-A-1-220260 (JP, A) (58) Fields investigated (Int) .Cl. ⁶ , DB name) G11B 17/24

Claims (2)

(57) [Claims] A magazine (3), which can be stored substantially radially, is rotated and stopped in a state where a disc on which information is recorded is set up, and a disc loading / unloading section (4) provided on a side of a rotation transfer path of the magazine. ) And a disc playing device for transferring a disc between the playing section (9) and the magazine (3), a slit (42) for inserting or discharging a disc is provided in a cylindrical revolving door (41), The revolving door is rotatably supported behind a slit (21) provided in the front panel (2) and takes first and second stop positions according to the rotation of the revolving door (41), At the first stop position, the slit (42) is made coincident with the slit (21) of the front panel (2) to allow the loading or discharging of the disc, and at the second stop position, the slit (42) is connected to the front panel (2). ), A rotation control device that conceals from the slit (21) to prevent the disc from being inserted or ejected. The slits (21) and (42) have a parallel portion formed at a central portion in the longitudinal direction thereof with a predetermined width interval in the height direction, and a slit width in the vertical direction from the parallel portion. Characterized in that the width of the disk is gradually narrowed, and the upper and lower ends thereof are formed to have substantially the same width as the thickness of the disk. 2. A magazine in which a disc on which information is recorded is set up and a magazine (3) capable of being stored substantially radially is rotated and stopped, and a disc loading / unloading section (4) provided on a side of a magazine rotation transfer path. ) And a disc playing device for transferring a disc between the playing section (9) and the magazine (3), a slit (42) for inserting or discharging a disc is provided in a cylindrical revolving door (41), The revolving door is rotatably supported behind a slit (21) provided in the front panel (2) and takes first and second stop positions according to the rotation of the revolving door (41), Only when the slit (42) coincides with the slit (21) of the front panel (2) at the first stop position, the disc is allowed to be inserted or ejected.
(42) includes a rotation control device that controls so as to obstruct the insertion or ejection of the disc so as to cover the slit (21) of the front panel (2), and the rotation control device is provided at an upper end of the revolving door (41). A spring (47) connected to a hook (45) provided and constantly biasing the door in the closing direction, and a front panel connected to an upper end of the rotating door (41).
A slider (410) that slides horizontally along (2) to rotate the door, and a torsion spring (44) provided on the slider and one end of which is engaged with the hook (45) so as to be able to abut.
(0) and the slider (41)
0), a door full-open detection switch (SW2) that detects the first stop position and a door full-close detection switch (SW1) that detects the second stop position. Characteristic disk playing device.