JPH06203457A - Recording disk playing device - Google Patents

Abstract

PURPOSE:To allow receipt and delivery of a disk to and from a magazine in the radial direction of a guide member by forming guide grooves. CONSTITUTION:Top sections of the disk group stored in the upper portion of a magazine are guided. The device is provided with a guide member that is held by a leg piece 50 which fits to the top section of a holding column that goes through the center cylinder section of the magazine and plural leg pieces 51 which are fit to a guide member holding column that is provided on a base chassis 1 and is sticking out near the outer peripheral of the magazine. A guide surface 52 of a guide member 5 has a cross section which is formed in a ring groove shape with a curvature approximately equal to the outer peripheral curvature of a disk so as to prevent the occurrence of the disk being out of the magazine and guide grooves 53 and 54 are formed at a same angular interval of the angle formed by a disk feeding/ejecting section and a playing section 9 centered against a central leg piece 50. The grooves perform receipt and delivery of disks to and from the magazine in the radial direction of the guide member 5.

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 reading 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 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 has been proposed that one charging / discharging unit (620) is provided (Japanese Patent Laid-Open No. 4-57248).

On the outer peripheral side of the magazine (610), grooves (611) (614) are formed on the bottom and the ceiling, respectively, from the outer peripheral side toward the center of rotation.
Is opened, and the lower part and the upper end of the disk D are fitted in the groove so that the disk can be accommodated in an upright state.

A magazine that holds the upper end of this disc
The upper guide member of (610) is configured to cover all the disks arranged in a radial pattern.

In the disc mounting member of the magazine (610) for mounting the upper guide member and the disc,
The distance between the disc holding surface of the upper guide member and the groove (611) of the disc mounting member is slightly larger than the outer diameter of the disc and is arranged so that the disc can be stored in the magazine or discharged from the magazine. There is.

Further, a notch (612) is provided on the outer end side of the groove (611) of the disc mounting member, and the disc is detached from the magazine by coming out of the notch in the notch. A leaf spring (613) is provided to prevent this.

However, in the disc playing device, when an external impact is applied to the device, the disc holding surface of the upper guide member and the biasing force of the leaf spring (613) cannot hold the disc sufficiently. However, there was a drawback that the disc fell out of the magazine in the device. Further, since the leaf springs (613) are required for the number of discs accommodated in the magazine corresponding to the discs, there is a problem in that the material cost and the number of assembling steps for that are increased.

Further, in the disc playing device, when any failure occurs in the mechanical portion of the device, for example, the upper guide member is completely removed to remove the disc from the magazine (610) in order to repair the mechanical portion. In this case, it takes a lot of time to remove the disk, and there is a drawback that the disk is scratched or damaged during the operation of removing the disk.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and a guide member (5) for guiding the upper part of the disk group accommodated in the magazine is provided above the magazine (3), and The first purpose is to form the guide surface (52) of the guide member (5) in the shape of an annular groove so as to substantially match the outer peripheral curvature of the disc, and secondly, the guide surface (52) of the guide member (5). ) Is formed in an annular groove shape substantially corresponding to the outer peripheral curvature of the disc, and the guide surface (52) of the guide member (5) is provided between the disc loading / unloading section (4) and the magazine, and between the magazine and the performance. A guide groove (5) that allows the disc to be delivered to the magazine (3) along the disc transport path with the section (9).
3) Form (54). This solves the problem that the disc drops from the magazine into the device even when an external shock is applied to the device, and at the same time, the disc spring is provided between the disc holding surface and the disc holding surface in correspondence with the number of stored discs. It is an object of the present invention to provide a disk playing device that does not need to be held by a biasing force such as.

A third object is that a part of the guide member (5) has an outer peripheral portion of the guide member as a base and a substantially triangular notch portion (55) from the outer peripheral portion to the central leg piece (50) side. And a detachable lid (56) is attached to the notch. Fourth,
The guide surface (52a) of the lid (56) is formed in a shape that is continuous with the guide surface (52) of the guide member (5), and is required for taking out the disk from the magazine when the mechanical portion of the disk playing device is repaired. Simplify the work. It is also an object of the present invention to shorten the repair time and prevent the disc from being scratched or damaged during the disc removal operation.

[0011]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention firstly accommodates a disc in a disc holding groove (31) formed substantially radially in the magazine (3) to accommodate the magazine.
(3) is rotated and stopped, and the disc is transferred between the magazine and the disc loading / unloading unit (4) and the playing unit (9) provided on the side of the rotation transition path of the magazine, and the playing unit (9) In a recording disk playing device for playing a disk while freely supporting it between a turntable (922) and a clamper (93), a disk group provided above the magazine (3) and housed in the magazine Of the magazine (3) provided on the base chassis (1) and the leg piece (50) which is fitted to the upper part of the support pillar (10) which penetrates the central tubular portion (39) of the magazine (3) while guiding the upper part of the magazine (3). ) Supporting pillars for guide members protruding near the outer circumference
A guide member (5) supported by a plurality of leg pieces (51) fitted in (11), and a guide surface (52) of the guide member (5).
Provided is a recording disk playing device characterized in that an annular groove-shaped disk accommodating recess is formed so that its cross section substantially matches the outer peripheral curvature of the disk so as to prevent the disk from dropping upward. Secondly, the disc is housed in the disc holding groove (31) formed substantially radially in the magazine (3) to rotate and stop the magazine (3), and the disc provided on the side of the rotation transfer path of the magazine. Input / output section (4) and performance section
The disc is passed between the (9) and the magazine, and the playing section (9)
Then turn the disc (922) and clamper (93)
In a recording disk playing device which is rotatably supported and played between and, the upper part of a disk group housed in the magazine (3) is guided and the magazine (3) is guided. Support column that penetrates the central tube part (39) of
A leg piece (50) fitted to the upper part of (10) and a plurality of leg pieces (fitted to the guide member support pillar (11) provided on the base chassis (1) and projecting near the outer periphery of the magazine (3) ( 51) and a guide member (5) supported by the guide member (5), and the guide surface (52) of the guide member (5) has a cross section approximately equal to the outer peripheral curvature of the disc to prevent the disc from falling upward. As a result, an annular groove-shaped disc accommodating recess is formed and the central leg piece (5
The disk is delivered to the magazine (3) at the same interval as the angle formed by the disk loading / unloading section (4) and the playing section (9), and in the radial direction of the guide member (5). (EN) Provided is a recording disk playing device characterized in that guide grooves (53) (54) which allow the disk are formed. Thirdly, a disk is formed in a disk holding groove (31) formed substantially radially in a magazine (3). The magazine (3) is housed in the magazine to rotate and stop, and the disc is transferred between the magazine and the disc loading / unloading unit (4) and the playing unit (9) provided on the side of the rotation transfer path of the magazine. Department
In (9), turn the disk into a turntable (922) and clamper.
(93) In a recording disk playing device which is rotatably supported with respect to (93), plays the upper part of a disk group provided above the magazine (3) and accommodates the magazine, The leg piece (50) fitted to the upper part of the support pillar (10) penetrating the central tubular portion (39) of (3) and the base chassis (1) are provided so as to project near the outer periphery of the magazine (3). A guide member (5) supported by a plurality of leg pieces (51) fitted to the guide member support pillar (11) is provided, and the guide member (5) is provided with a central leg piece (50) from an outer peripheral portion of the guide member. Provided is a recording disk playing device characterized in that a substantially triangular notch (55) is provided on the side and a detachable lid (56) is attached to the notch. (56) is the guide surface of the lid
There is provided a recording disk playing device characterized in that a shape (52a) is continuous with the guide surface (52) of the guide member (5).

[0012]

[Operation and effect] First, the upper part of the disk group housed in the magazine is guided by the guide surface (52) of the guide member (5) formed in the shape of an annular groove substantially matching the outer peripheral curvature of the disk. Secondly, the guide surface (52) of the guide member (5) is provided with a disc transport path between the disc loading / unloading unit (4) and the magazine, and between the magazine and the playing unit (9). Guide groove (5) that allows the disc to be delivered to the magazine (3)
3) Since (54) is formed, it is possible to provide a disc playing device in which the disc does not drop out of the magazine even when an external shock is applied to the device.

Thirdly, the notch (5
5) is provided, and a lid (5
By detachably attaching 6), the disc is prevented from falling out as a guide member for holding the upper end of the disc when the lid is attached, but when removing the disc from the magazine (3), remove the lid. By performing the work, the disc can be easily removed from the device without damaging the disc, so that the efficiency of maintenance work such as repair service can be improved.

[0014]

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.

"Overview" (Figs. 1, 2, 3 and 1)
2) The embodiment is a playing device for a disc on which an audio signal is recorded using a laser, and is a playing device dedicated to a 12 cm disc out of two standard sizes of 12 cm and 8 cm in diameter. Of course, the present invention is not limited to this, and can be applied to a performance device of various disc-shaped recording media.

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

Disc loading / unloading section (4) and playing section (9)
Are 135 degrees apart from each other about the center of rotation of the magazine (3), in order to make the entire playing apparatus the most 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 places the discs D into the magazine (3) and magazines. Eject the disc from (3) to the outside.

The ON / OFF button (22), the play button (23), and the stop button (24) provided on the front panel (2) of the playing device shown in FIG. 12 are used for loading / unloading the disc, selecting the playing, and stopping the playing. , The open / close button (25) and the numeric keypad (26) are operated. For example, if the user selects a disc to be played, the magazine (3) is rotated and the disc is played on the playing section (9). The disc is carried and sent to the playing section (9) by the playing-side delivery device (6a).

When the performance is finished, the disc is magazine
Return to the original position of (3).

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

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 mechanism, SE1 to SE8 are sensors for disc size and disc passage, SE9.
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 by injection molding of synthetic resin into a thick disc-shaped body, and a cylindrical portion provided at the center thereof. (39) is rotatably fitted in the supporting column (10) protruding from the base chassis (1).

Twenty-four disc holding grooves (31) are formed in the upper surface of the magazine (3) at equal intervals in a substantially radial pattern, and each holding groove (31)
Has a front end open to the side of the outer peripheral wall of the magazine (3), and a base end abuts on the cylindrical portion (39).

The number of the disc holding grooves (31) is set to 24 because the outer diameter of the magazine (3) is made as small as possible, and the number of discs is stored as much as possible. This is for the reason and does not limit the number of the disc holding grooves (31).

Each disc 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 the vertical plane with respect to the base chassis (1), but if the disc holding groove (31) is opened at a slight inclination to the base chassis (1), the disc is slightly moved. It will be housed while standing in a tilted state,
The disc housing 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 groove bottom of the disc holding groove (31) is such that the central portion in the length direction is the bottom (3) of the opening to the outer periphery of the magazine.
5mm lower than 1a).

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 smaller than the disc thickness over the entire length. Largely formed.

FIG. 4 shows the magazine (3) viewed from the back side, but the disc holding groove (31) is partially shown in the magazine.
A slit (32) is formed through the bottom surface of (3). The disc D fitted in the disc holding groove (31) is in contact with a plurality of places (31a) (31b) (31c) (31d) on the groove bottom as shown in FIG. Therefore, the disk recording surface is supported almost without play, and the recording surface of the disk does not contact 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) prevents the impact noise from directly hitting the tubular portion (39) when the disc D falls 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.

In the magazine (3), the ribs (34) are mounted on the base chassis (1) as shown in FIG.
Positioned in the height direction on a plurality of receiving rollers (12) arranged on a virtual circle concentric with the central cylindrical portion (39)
Is fitted into the support column (10) to prevent lateral movement.

As shown in FIG. 5, the magazine (3) has two 2
Magazine rotation motor (M3) via step gears (310) (320)
Be connected to.

On the outer peripheral portion of the large gear of the two-step gear (320) having the small gear (330) meshing with the annular tooth surface (33) of the magazine (3), two penetrations are made at opposite positions on the diameter line. Holes (340) (340) have been opened.

The base chassis (1) has a count sensor so 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 of the through hole (340).

If the two-stage gear (320) rotates 1/2 turn, the magazine (3) rotates 15 degrees, that is, one pitch of the disc holding groove (31).

As shown in FIG. 5, the lever (37) is fixed on the base chassis (1) around the shaft (37a) as it approaches the rotation transfer path of the contact plate (35) of the magazine (3). 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 transition path of the mountain portion (36) formed in (35), and the detection switch (SW5) is provided in the rotation transition path of the lever (37). There is.

When the lever (37) is rotated by hitting the ridge (36) of the contact plate (35) to activate the detection switch (SW5), the disc holding groove (31) of No. 1 of the magazine (3) is moved. The mounting position of the contact plate (35) with respect to the magazine (3) is determined so that () faces the disc loading / unloading section (4) described later.

When the No. 1 disc holding groove (31) reaches the disc loading / unloading unit (4), the number 2 for driving the magazine is set.
Of the two through holes (340) (340) opened in the step gear (320),
One through hole (340) corresponds to the position of the count sensor (SE9).

Disk No. 1 position detection switch (SW
When 5) and the count sensor (SE9) work at the same time, No.
1 It is detected that the disc holding groove (31) is located in the disc loading / unloading section (4).

When the ON-OFF button (22) on the front panel (2) is turned ON, the magazine (3) is always No.
The disk holding groove (31) of No. 1 is rotated so as to face the disk loading / unloading section (4), and the next operation is performed.

"Disc upper part 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 pieces (50) at the central portion are provided.
Is a support column that penetrates the central tubular portion (39) of the magazine (3).
The leg pieces (51) fitted on the upper part of the (10) are fitted and supported by the guide member support columns (11) projecting from the base chassis (1), and the guide member (5) does not rotate. .

FIG. 7 is an oblique view in which the guide member (5) is turned upside down. An annular groove-shaped guide surface (52) is formed so as to surround the central leg piece (50). The cross-sectional shape of the guide surface (52) cut in the radial direction with respect to () is substantially equal to the outer peripheral curvature of the disk.

As shown in FIG. 8, the guide surface (5) of the guide member (5) with respect to the disk D housed in the magazine (3) is
When 2) approaches the upper part of the disc and the performance device is moved or inverted while the disc is housed, the disc does not escape from the magazine.

As shown in FIG. 7, the annular groove-shaped guide surface (52) of the guide member (5) is centered on the central leg piece (50), and the disc loading / unloading section (4) and the playing section (9). ), The two guide grooves (53) and (54) are opened in the radial direction of the guide member (5) at an interval of 135 degrees, and both guide grooves (5
3) and 54 are open at the side edges of the guide member 5.

The above-mentioned guide grooves (53) (54) are used to insert a disc.
Corresponding to the positions of the ejecting part (4) and the playing part (9), the disc is allowed to be transferred to the magazine (3) at that position.

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. To be

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

Even if the entire guide member (5) is not removed,
The disc can be removed from the magazine (3) by removing the lid (56). Therefore, when the performance device is repaired, the repairer should immediately remove the disc and give it to the user, and take the performance device with him. It is convenient because it can be repaired and the trouble of lost disks can be avoided.

"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 an insertion guide member (500) is provided behind the revolving door (41) as shown in FIG. Further, a disc delivery device (6) to the magazine (3) is provided behind it to constitute a disc loading / unloading part (4).

The 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 has two plate members (40) (40) in the center.
Is provided, and a vertically long slit (42) through which the disc passes is formed between the plate members (40) (40).

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

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

The interval between the slits (42) is widest in a 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 gradually narrows in the vertical direction from the wide range W. At the upper and lower ends, the disc is formed to have a width that allows the disc to pass through with almost no margin.

Further, the slit (42) is provided on the front panel (2).
The opening edges on the side and the opposite side are formed so as to spread out over the entire length.

Therefore, even if the disc D rubs against the side wall of the wide portion W of the slit when the disc D passes through the slit (42), it is limited to the non-signal portion on the outer periphery of the disc and the signal recording portion of the disc is The signal recording surface can be prevented from being damaged without coming into contact with the side wall of the slit.

The slit (2
1) and the disc insertion guide port (510) of the insertion guide member (500) described later are also formed in the same shape as the slit (42) of the revolving door (41) so that the signal recording surface of the disc D does not rub against the side wall. Has been done.

In the revolving door (41), the 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 about 60 degrees 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. ing.

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 drive device (400) is connected.

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

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

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

In FIGS. 15 and 16, the slider (410)
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) separates from the hook (45) of the revolving door (41), and the urging force on the revolving door (41) disappears.
The revolving door (41) rotates counterclockwise by the force of the spring (47) that urges the revolving door in the closing direction, and the wall plate (43) of the revolving door (41) closes the slit (21) of the front panel (2). Close up.

A door fully closed detection switch (SW1) and a door fully opened detection switch (SW2) are provided along the transition path of the slider (410), and if the slider (410) slides to a position where the rotary door is fully closed, The protrusion (43) provided on the slider (410)
0) operates the door fully closed detection switch (SW1) to stop the door opening / closing motor (M1), and if the slider (410) slides to the position where the rotary door is fully opened, the protrusion (430) will cause the door to open. Door open / close motor (M1) by operating the full open detection switch (SW2)
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 (40), and the spring (47) with weak biasing force.
Since the revolving door (41) is closed with, the slider (410) slides when the disc is caught in the revolving door (41), and the closing spring (47) force acts on the revolving door (41). Even the revolving door
In (41), the rotation is stopped while the disc is biting, and the disc cannot be destroyed.

Further, on the back surface of the front panel (2), there is provided a disc catching detection switch (SW3) for hitting the hook (45) of the revolving door (41) and detecting the fully opened state of the revolving door (41). Has been done.

As described above, the slider (410) and the 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 disc is sandwiched in 1), the slider 410 may slide in the closing direction of the revolving door 41 to operate the door fully closed detection switch SW1. Assuming this case, the disc bite detection switch (SW3)
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) has end plates (540) (540) between the upper ends of two plate members (520) (530).
The disc insertion guide opening (510) is formed between the plate members (520) (530) in the same manner as the slit (21) of the revolving door (41) so as not to rub against the recording surface of the disc. There is.

Four through cutouts (550) are formed in the plate members (520) and (530) at opposing positions, and the through cutouts are provided by six sensors (which will be described later) for detecting the size of the disk. Among SE1) to (SE6), the first sensor (SE1) to the fourth sensor (SE4) are opened corresponding to the arrangement positions to allow passage of sensor light.

"Disk 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 provided in the vicinity of the insertion guide member (500) and is provided in the rear of the rollers (61) and (62) and the pair of rollers (61) and (62) which sandwich and convey the disc D. Kicking-out member that is slidably arranged on the base chassis (1) and kicks the disk D on the magazine (3) toward the rollers (61) (62) side.
It consists of (7) and.

As shown in FIG. 17, the two rollers (61) (62)
Are rotatably supported by shafts (601) (602) projecting from the center of the upper and lower ends thereof by roller supporting members (63) (64), and the roller supporting members (63) (64) are connected to 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. Gears (67) are installed.

In the other roller (62), the shafts (602) at the upper and lower ends are mating rollers in the notches (65) at the upper end of the roller supporting member (64).
(61) is fitted in a state where there is room to approach and separate,
The two rollers are always in contact with each other by being biased by the spring (66) against the mating roller (61).

The lateral opening width of the cutout portion (65) of the roller support member (64) becomes narrower than the diameter of the shaft (602), and
Prevents escape of (602).

As shown in FIG. 18, the kicking member (7) is slidably provided on the base chassis (1) from the support pillar (10) side for supporting the magazine toward the rollers (61) and (62). At the rear end, a pushing piece (71) that protrudes upward to enter the bottom slit (32) of the magazine (3) and kicks out the disc toward the rollers (61) (62) is provided in the front portion so as to slide in the sliding direction. A long guide hole (72) is formed in the orthogonal direction.

The localization roller (61) and kicking member (7)
A common drive unit (705) is connected to the.

As shown in FIG. 19, the driving device (705) connects the gear train (700) to the loading / discharging side loading motor (M2) mounted on the base chassis (1) to connect 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 with two-stage gear (730) that meshes with the gear (67) at the bottom
The control gear (73) meshes with (720) via the intermediate gear (740),
A shaft (77) protruding from the control gear (73) is slidably fitted in the guide elongated hole (72) of the kicking member (7). 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) have a recess (13) formed in the base chassis (1).
It is fitted freely to rotate. The recess (13) has an intermediate gear (74
The small circular recess (15) into which the (0) fits and the large circular recess (14) into which the control gear (73) fits are partially formed so as to overlap each other.

If there is no load on the lower surface of the intermediate gear (740), it rotates integrally 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) is provided with a rotation restricting piece (760) whose tip is bent downward and an arm piece (770) protruding laterally in a V shape.

Base chassis into which the intermediate gear (740) is fitted
An arcuate hole (16) into which the bent portion of the rotation restricting piece (760) is fitted is formed in the small circular recess (15) of (1), 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.

A tooth surface (76) is formed in a part of the control gear (73), and both ends of the tooth surface (76) extend along the tooth surface (76) in the direction of approaching each other with a notch (74) ( 75) is opened to give elasticity to both sides of the tooth surface (76).

The kicking member is provided on the upper surface of the control gear (73).
A shaft (77) that fits in the elongated guide hole (72) of (7) is provided in a protruding manner, and the lower surface approaches the notches (74) (75) near the outer periphery and hits the contact piece (78).
(79) is projected.

When the disc is housed in the magazine (3), the loading / ejection side loading motor (M2) 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.

The intermediate gear (740) meshing with the small-diameter gear (720) of the two-stage gear (730) rotates counterclockwise, and the control gear (73) rotates clockwise, so that the kick member (7) is rotated. Retreat
(FIG. 21 shows the kicking member 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 tip bending part of the rotation restricting piece (760) is an arc hole (16).
When it hits the end of, the rotation stops and only the intermediate gear (740) rotates.

By retracting the kicking member (7), the member
The pushing piece (71) on the (7) is the disc holding groove (3) of the magazine (3).
There is no problem in ejecting from 1) and inserting the disc into the disc holding groove (31).

Even when the kicking member (7) reaches the retracted end, the two-stage gear (730) continues to rotate, the localization roller (61) continues to rotate and pulls in the disk, and the disk detection sensor (described later) ( After detecting that SE1) to (SE6) have passed through the localization roller (61), the loading / discharging side loading motor (M2) is stopped after a lapse of a predetermined time, 0.5 seconds in the embodiment. As shown in FIG. 8, when the disc passes the rollers (61) (62), the disc is held in the disc holding groove (3) of the magazine (3).
It reaches the back of 1) and falls into the lower bottom of the disc 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 and the roller (61) that have fallen into the disc holding groove (31).

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 backward end, the control gear is rotated. The notch (74) of (73) corresponds to the intermediate gear (740), the intermediate gear (740) idles, the rotational force is not transmitted to the control gear (73), and the mechanism is not damaged.

From the magazine (3) to the rollers (61) (6
When loading to the 2) side, loading / unloading side loading motor
(M2) 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 hanging plate (750) also rotates, and the arm piece (770) kicks the hitting piece (78) on the lower surface of the control gear (73). Turn 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 (75) on the lower surface of the intermediate gear (740)
Although 0) rotates following the clockwise rotation of the intermediate gear (740), the rotation stops when the tip bending portion of the rotation restricting piece (760) hits the end of the arc hole (16). The intermediate gear (740) continues to rotate.

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

The kicking member (7) rolls the disc onto the roller (61).
When kicking out to (62), cutout (75) in control gear (73)
Corresponding to the intermediate gear (740), the rotation of the control gear (73) stops, and the intermediate gear (740) does not damage the mechanism even if the rotation is continued.

When the disc D passes through the rollers 61, 62, a disc detection sensor, which will be described later, operates to stop the loading / unloading side loading motor M2.

When the discs are housed in the magazine (3) again, the loading / ejection side loading motor (M2) is operated, the two-stage gear (730) is rotated clockwise, and the rollers (61) are rotated by the disc D. Rotate in the direction to pull in.

The intermediate gear (740) meshing with the small diameter gear (720) of the two-stage gear (730) rotates counterclockwise, and at this time, the intermediate gear (740) rotates counterclockwise along with the intermediate gear (740). The arm piece (770) of the plate (750) is the contact piece (79) of the lower surface of the control gear (73).
To slightly rotate the control gear (73) clockwise so that the tooth surface (76) of the control gear (73) meshes with the intermediate gear (740).

The subsequent operation is as described above.

[0111] In response to the retracted position of the kicking-out member (7), the feed-in / discharge-side kicking-out member retracted position detection switch (SW4)
When the switch (SW4) does not detect that the kicking member (7) is in the retracted position, the magazine rotation motor (M3) 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 the motor" (Figs. 9, 10 and 1)
1) The loading / discharging side loading motor (M2) is mounted on the plate (701), and the plate (701) is a receiving plate (18) that extends inwardly on the side wall (100) of the base chassis (1). Also, the bosses (17) protruding from the base chassis (1) are fixed with screws (19).

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

A plurality of positioning notches (702) (703) (704) and screw insertion holes (704) (704) are formed in the plate (701).

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

The side wall (100) of the base chassis (1) hinders the plate (701) from being aligned with the projections (180) (180) and the screw holes (171) (181) located from directly above. Interfering piece (1
10) is projected.

The height interval between the upper end of the protrusion (180) and the lower surface of the baffle piece (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 (M2) and the gear (780) are attached to the base chassis (1), as shown in FIG. 11, dodge the baffle (110) and move the baffle (110) downward. The gears (780) of the motor shaft must mesh with the mating gears (790) from the side, and the teeth of the gears (780) (790) must be aligned. Can be prevented from colliding from above and below to damage the teeth.

The motor mounting structure described above is also used for mounting the other motors used in this embodiment. "Disc Detection" (See 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.
E1) (SE2) (SE3) (SE4) (SE5) (SE6) 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.

Four sensors (SE1) (SE2) (SE1) (SE1) (SE2) (SE) are arranged in a row vertically on the outside of the rollers (61) (62).
3) (SE4) is provided, and the fifth sensor (SE5) and sixth sensor (SE6) are provided inside the rollers (61) and (62).

The first sensor (SE1) is at a position where the center of the 12 cm disc passes, and the second sensor (SE2) is shown in FIG.
At the position where the upper part of the 8 cm disc d3 is slightly disengaged as it passes under the transition path as shown in FIG.
(SE3) is at a position for detecting the passage of the lower end of the disc, and the fourth sensor (SE4) is at a position for detecting the upper part of the 12 cm disc. The fifth sensor (SE5) is the first sensor (SE
Located between 1) and 3rd sensor (SE3), 6th sensor
(SE6) is the second sensor (SE2) and the fourth sensor (SE4)
Between 5th sensor (SE5) and 6th sensor
(SE6) is 8c in the middle of the transition path of the 12cm disc.
When the m disk passes, the 5th sensor (SE5) or 6th
At least one of the sensors (SE6) is arranged in a positional relationship that can be detected.

In the following explanation of the operation, each sensor (SE1)
~ (SE6) is turned on when light passes through.

<During Disc Loading> The user bites the disc between the rollers (61) and (62).

12 cm Disc Detection Procedure The first sensor (SE1) is switched from ON to OFF,
The ejection side loading motor (M2) rotates, and the rollers (61) and (62) rotate as described above to pull in the disc (Fig. 23).
Disk D1 to D2).

Second sensor (SE2) to sixth sensor (SE
6) is all OFF (detects that it is a 12 cm disc) (D3 state in the figure).

The first sensor (SE1) is ON (due to the passage of the central hole of the disk), the fifth and sixth sensors (SE5) (SE
6) is OFF.

The fifth and sixth sensors (SE5) (SE6) are O
N. The disc D slides into the disc holding groove (31).

Turning on the 5th and 6th sensors (SE5) (SE6)
After a lapse of a short time, in the embodiment, after 0.5 seconds, the loading / discharging side loading motor (M2) is stopped, and the door opening / closing motor (M1) is operated to close the revolving door (41).

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

The disc loading / unloading unit is operated 0.5 seconds after the fifth and sixth sensors (SE5) (SE6) are turned on.
The loading motor (M2) on the (4) side is stopped and the door opening / closing motor (M1) is operated in consideration of the slip of the disc and the rollers (61) and (62) that convey the disc, and the like.
This is to prevent the roller from stopping the rotation while the disc is being sandwiched between the (62) and the revolving door (41) and moving to the next operation.

8 cm Disc Detection Procedure'As shown in d1 of FIG. 24, the fourth sensor (SE4) and the sixth sensor (SE6) are OFF, and the third sensor (SE3) and the fifth sensor (SE5) are ON.

Alternatively, as shown by d2 in FIG. 24, the third sensor (SE3) and the fifth sensor (SE5) are OFF, and the fourth sensor
Sensor (SE4) and 6th sensor (SE6) are ON.

Alternatively, as indicated by d3 in FIG. 24, either or both of the fifth sensor (SE5) and the sixth sensor (SE6) are OFF and the third sensor (SE3) and the fourth sensor (SE4) are ON. .

'Loading / discharging side loading motor (M2)
Rotates in the opposite direction to rotate the rollers (61) and (62) in the disc ejection direction.

'Fifth sensor (SE5) and sixth sensor
(SE6) is ON.

'Loading / discharging side loading motor (M2)
Stops (holds the disc while the 8 cm disc is caught by the rollers (61) and (62)).

If the 8 cm disc is reinserted from the above state "," it returns to "" by the above detection operation.

When the user pulls out the disc from the rollers (61) and (62) in the state of the above ', the first sensor (SE1) is turned on and the door opening / closing motor (M1) is operated to rotate the door (41).
Closes.

<During Disc Ejection> By operating the open / close button (25) described later, the disc D housed in the disc holding groove (31) of the predetermined number of the magazine (3) is loaded into 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 disc ejection direction, and
The kick-out member (7) kicks out the disc, and the rollers (61) (6
Bite into 2).

The third sensor (SE3) and the fourth sensor (S
E4) is OFF.

The fifth sensor (SE5) and the sixth sensor (S
E6) is ON.

The loading / discharging side loading motor (M2) is stopped (the disc is held while the rollers (61) and (62) are caught).

Next, 'the first sensor (SE1) is ON (when the user pulls out the disc from the rollers (61) and (62)).

'The door opening / closing motor (M1) operates to turn the rotating door (4
1) closes.

Alternatively, the "5th sensor (SE5) and 6th sensor"
The sensor (SE6) is ON (when the disc is pushed in from the state).

"Loading / discharging side loading motor (M2)
Is operated to rotate the roller (61) toward the disc pull-in side and store the disc in the magazine (3).

In the state described above, when left for a certain period of time, the loading / unloading side loading motor (M2) rotates in the disk loading direction to reload the disk into the magazine.

As described above, when the disc is ejected, the disc is not completely ejected to the outer periphery of the rollers (61) (62), but is held in the state of being bitten by the rollers (61) (62). The disc will not roll over the slits (21) on the front panel (2) and be damaged.

Incidentally, a known circular adapter for an 8 cm disc
Of course, when a 12 cm size is attached by mounting (not shown), the operation is the same as in 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 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 delivery to (3) is provided.

The delivery device (6a) slides on the base chassis (1) to kick the disc on the magazine (3) in the same manner as the delivery device (6) on the side of the disc loading / unloading section (4). Kick-out member (7a), a pair of rotation rollers for conveyance (61a) (62a) for nipping a disk, and a kick-out member (7a)
And a playing side loading motor (M4) for driving the roller (61a) through the gear train (700a), an intermediate gear (740a) arranged between the kicking member (7a) and the gear train (700a), and control gear
(73a) and the hanging plate (750a) attached to the lower surface of the intermediate gear (740a).

A kick member retracting position detection switch (SW6) is provided corresponding to the retracted end of the kick 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 magazine rotation motor (M3) is not energized unless it is confirmed that the motor has not entered the inside.

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 roll the disc D into the roller. (61a) (62a) When the kicking is finished until it bites, the playing side loading motor (M4) that drives the kicking member (7a) is stopped by the playing part side disc detection sensor (SE7) (SE8) described later. Then, the pushing piece (71a) of the kicking member (7a)
Remains in the slit (32) of the magazine (3) described later, and can prevent the magazine (3) from rotating carelessly during disk performance.

When a disc is delivered by one of the delivery device (6a) and the delivery device (6) on the side of the disc loading / unloading section (4), the disc ejecting member (of the other delivery device ( 7), (7a) push piece (71) (71a)
Is controlled electrically so that the disc does not protrude into the bottom slit (32) of the magazine (3), the magazine (3) will rotate carelessly during the disc transfer. Therefore, it is possible to prevent the disk D from being damaged.

[0155] The delivery device (6a) on the performance side and the 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 drive side roller (61) does not move from the fixed position, and only the other roller (62) moves to clamp or release the disc, but the delivery device (9) on the side of the playing section (9) The rollers (61a) and (62a) of 6a) are the points at which both rollers (61a) and (62a) approach and separate from the disc transfer passage, and clamp or release the disc.

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

A roller (61) having a driving gear (67a) at its lower end
a) is a roller support member (63) while being meshed with the gear (710a) at the downstream end of the gear train (700a) with which the gear (67a) is meshed.
It revolves around the gear (710a) according to the rotation of a).

The two roller support members (63a) (64a) are biased by the springs (60) (60) in a direction in which the rollers (61a) (62a) are pressed against each other.

The shafts (68) and (69) protruding from the center of the lower ends of the rollers (61a) and (62a) are used to open and close the rollers opened on the inner end side of the slide plate (8) provided 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).

As shown in FIG. 26, both cam grooves of the slide plate (8)
(81) and (82) are approaching parallel parts (810) and (820), outer inclined parts (811) (821), and parallel parts (812) from the kicking member (7a) toward the playing part (9) side. (822) are continuous, and when the slide plate (8) slides to the kicking member (7a) side, the rollers (61a) and (62a) are opened, and the clamping pressure of the disc can be released. Slide plate (8)
Slides away from the kick member (7a),
The rollers (61a) (62a) are closed to allow the disc to be pressed.

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

The gear (84) at the downstream end of the gear train (80) in which the disc clamp motor (M5) also used for opening and closing the roller is in mesh with the rack surface (88) of the slide plate (8).

"Performance section (9)" (see FIGS. 2 and 25 to 33) The performance section (9) includes a disc storage case (91) for storing the disc supplied from the magazine (3), and the case. It is composed of a head mounting body (92) and a clamper (93) which are arranged on both sides of the disk 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 (9
In 1), a plate member (912) having a peripheral plate (910) projecting on three sides excluding the disk entry side and a plate member (913) are joined to each other to be formed in a vertically long shape with an opening on the disk entry side.

The case (91) is positioned above the slide transition path of the slide plate (8) and fixed to the base chassis (1) by approaching the rollers (61a) and (62a) and directing the opening between the rollers. Has been done.

When the disc is housed in the case (91), the disc protrudes from the case opening to the magazine (3) side, and a part of the disc is fitted in the magazine (3).

Within 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.

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

As shown in FIG. 30, the head mount (92) was equipped with a turntable (922) for rotationally driving the disk, a disk rotation motor (M6) for rotationally driving the turntable (922), and a read head. Head mount (923),
A head slide motor (M7) for driving the head mount (923) horizontally through a rack and a pinion is provided.

The head mounting body (92) has pivots (921) (921) projecting from both sides of the upper end thereof rotatably supported on the upper part of the disk housing case (91).

At the lower end of the head mounting body (92), two leg shafts are provided.
(924) (924) are provided so that the leg shaft (924) is the slide plate.
The head side opening / closing cam grooves (83) (83) formed in (8) are slidably fitted.

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) and (931) at the lower end of the disk. 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 slide in the clamper side opening / closing cam groove (85) formed in the slide plate (8). It is fitted.

The clamper side opening / closing cam groove (85) and the head side opening / closing cam groove (83) (83) are provided with the head mounting body (92) if the slide plate (8) slides to the magazine (3) side. Also, the clamper (93) is rotated about the pivots (921) (931) so as to approach each other, and the slide plate (8) is moved to the magazine (3).
Slide head away from head mount (92)
In order to rotate the clamper (93) and the clamper (93) away from each other, 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 disk 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.

Since the playing operation after the disc D is clamped is well known, 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 delivering the disc, the disc
Since the rollers (61a) (62a) or the turntable (922) and the clamper (93) are constantly pressed and held from both sides, the playing device may tilt itself by picking it up while the disc is being delivered. Also, the disc can be reliably delivered.

As described above, the common slide plate (8) opens and closes the rollers (61a) (62a) and the turntable (922).
The clamper (93) clamps and unclamps the disc, so the operation is reliable and no troubles due to the timing deviation occur.

The rollers (61a) (62) of the delivery device (6a) are also
While the disc is inserted between a), the disc is played, but at this time, both rollers do not come into contact with the disc apart from the transfer passage of the disc, and the rotation of the disc is not hindered.

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) advances toward the magazine (3) until the disc is completely clamped, the clamp completion switch (SW7) detects the protrusion (89) on the slide plate (8). Stop the clamping motor (M5).

Until the disc is released from the clamp,
When the slide plate (8) retracts, the clamp release switch (SW8) detects the protrusion (89) and the clamp motor (M5)
To stop.

As shown in FIG. 33, the delivery device (6a) approaches the rollers (61a) and (62a), and a seventh disc-like sensor similar to the disc detection sensor on the disc insertion / ejection side is located inside the rollers.
A sensor (SE7) and an eighth sensor (SE8) are provided.

The seventh sensor (SE7) includes rollers (61a) (62
It is provided at a position where the passage between a) can be detected and the disc D is removed from the disc D when it reaches the inside of the disc housing case (91).

The eighth sensor (SE8) is provided at a position for detecting the presence of the disk D when the disk D reaches the inside 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, the completion of conveyance 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 the disk D is returned from the playing position to the magazine (3), unless the seventh sensor (SE7) detects the passage of the disk D, that is, the completion of accommodating the disk in the magazine (3), Does not start operation.

As described above, since the disc is played while a part of the disc being played is fitted in the magazine (3), the disc D is completely ejected from the magazine (3). This contributes to downsizing of the device as compared with a playing device that plays.

Since information is recorded only on one side of the disc, when the disc is housed in the magazine (3) with the front and back reversed, 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 be conveyed to the disc loading / unloading section (4) and immediately ejected, or when a plurality of discs are continuously played. The control device, which will be described later, stores the position of the reverse disc D, and after the performance of all the discs is completed, the reverse disc D is loaded into the disc loading / unloading unit.
It is also possible to convey it to (4) and discharge it 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 loading / unloading slit (21) in the center and a display section (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.

The line-of-sight window (29) is for seeing the accommodation state and rotation state of the disc on the magazine (3),
An illumination lamp (not shown) provided inside the device causes the disc to shine in an iridescent 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) and the nine disk detection sensors are described.
The (SE1) to (SE9) and the seven motors (M1) to (M7) 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 (M3) is activated, and N
The magazine (3) rotates until the disc holding groove (31) of o.1 is located in the disc loading / unloading section.

<Performance of Disc> There are two types of operation procedures, operation and operation.

Performance operation The ten key (26) is operated to select a disc. For example N
To select the o.14 disc, use numeric keys (26) 1 and 4
Press the key.

Next, the play button (23) is pressed.

The magazine rotation motor (M3) operates,
The designated disk of No. 14 is conveyed to the performance section (9).

The discs are transferred from the magazine (3) to the performance unit (9) and played by the operation as described in the description of the performance unit, and when the performance is completed, the discs are transferred to the magazine (3). ) To the original position.

The rotation direction of the disk D is controlled so that it rotates to the side where the rotation angle is small.

Further, as described above, when the disc is rotated, both kicking members (7) of the delivery device (6) on the disc loading / unloading part (4) side or the delivery device (6a) on the playing part (9) side are rotated. ) (7
Unless the pushing pieces (71) (71a) of a) detect that they have reached the retracted position (detected by SW4 and SW6), the magazine rotation motor (M3) is not energized and the magazine (3) Magazine with pushing pieces (71) (71a) fitted in the bottom slit (32)
(3) does not rotate and destroy the mechanism.

Performance operation Press the play button (23) without designating the disk No.

In this case, the N displayed on the display unit (28)
Magazine (3) until the disk of o. is located in the playing part (9)
Is rotated and played.

On the display unit (28), the No. of the disk which has been operated immediately before the main performance operation, for example, performance, disk accommodating operation, etc. is displayed.

<Disc loading / unloading> There are two types of operation procedures: operation and operation.

Loading / discharging 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 designated No. disc holding groove (31), the door opening / closing motor (M1) operates to turn the revolving door (41).
And the loading / unloading side loading motor (M2) operates the delivery device (6) to eject the disc.

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

Insertion / ejection operation Press the open / close button (25) without specifying the disk No.

[0215] The magazine (3) rotates and the disc is inserted into the disc holding groove (31) of No. displayed on the display unit (28).
The revolving door (41) is opened so as to face the discharge part (4).

If there is the disk D in the displayed disk holding groove (31), the disk D is ejected, and if there is no disk D, the disk is prepared for loading.

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

It should be noted that this disc playing device does not have an eject button dedicated to disc ejection, but the above-mentioned open / close button (2
Eject the disc by the operation of 5).

In each of the above-mentioned operations, the following safety measures and other measures are implemented in the form of an electric circuit (some of them have already been mentioned).

<Magazine-related> The magazine (3) rotates unless it detects that the disc D has been conveyed to the magazine (3) and that the revolving door (41) is closed. do not do.

It is possible to insert or eject another disc by allowing the magazine (3) to rotate during the performance of the disc. However, the disc holding groove where the disc being played was stored
You cannot insert another disk into (31).

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 transported 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 relation> 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 magazine (3) is stored by the storage. If it becomes full, if you try to insert a new disc into the disc loading / unloading unit (4), the delivery device
The localization roller (61) of (6) rotates in the ejecting direction, and the disc is automatically ejected.

It is also possible to prevent the disk from being pulled in by stopping the rotation of the localization roller (61).

When the disc is mounted to the playing portion (9) in the reverse direction, it is detected that the TOC cannot be read, and the reverse disc is ejected from the magazine (3). "Features of Embodiment" The disc playing device of the embodiment has the following excellent features.

1. Disc loading of 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 sandwiched vertically from the center in the height direction of the opening width and the disc is inserted. Since the side gradually expands, 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) and damaging the disc.

Also, the slit (21) of the front panel (2)
Can be closed except when the disk 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 opened 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 ()), 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 (SW1) detects
While (SW3) 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 (SE1) to 6th sensor
By (SE6), it is possible to discriminate the disc size and prevent the discs other than the prescribed 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.
You can take out the internal disc without removing the whole,
It is convenient.

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 sandwiched 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 to be 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 portion (39) at the center of the magazine where the inner end of the disc holding groove (31) abuts, the impact sound when the disc D falls into the disc holding groove (31) is generated. Can be suppressed.

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 itself during delivery of the disc. Even if it occurs, the disc will not be dropped, and the disc can be delivered without fail.

12. Opening and closing the rollers (61a) (62a) and the disk D by the turntable (922) and clamper (93)
Clamping and unclamping are performed by sliding one slide plate (8), so that the operation is reliable and no troubles due to timing deviation 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 (3) Magazine (4) Disc loading / unloading section (5) Guide member (9) Playing section (10) Support pillar (11) Guide member supporting pillar (31) Disk holding groove (39) Center tube Part (50) Leg piece (51) Leg piece (52) Guide surface (52a) Guide surface (53) Guide groove (54) Guide groove (55) Notch (56) Lid (93) Clamper (922) Turntable

Claims (4)

[Claims] 1. A disc loading groove provided on a side of a rotation transition path of the magazine by accommodating the disc in a disc holding groove (31) formed substantially radially in the magazine (3) to rotate and stop the magazine (3). The disc is delivered between the ejecting part (4) and the playing part (9) and the magazine, and the playing part (9) supports the disc rotatably between the turntable (922) and the clamper (93). In a recording disk playing device for playing, the upper part of the disk group provided above the magazine (3) is guided, and the central cylindrical portion (39) of the magazine (3) is penetrated. A leg member (50) fitted to the upper part of the support pillar (10) and a guide member support pillar (11) provided on the base chassis (1) and projecting near the outer periphery of the magazine (3)
A guide member (5) supported by a plurality of leg pieces (51) fitted to the guide member (5), and the guide surface (52) of the guide member (5) prevents the disc from falling out of the magazine (3). A recording disk playing device characterized in that its cross section is formed in an annular groove shape so as to substantially match the outer circumference curvature of the disk. 2. A disc loading groove provided on a side of a rotation transfer path of the magazine by accommodating the disc in a disc holding groove (31) formed substantially radially in the magazine (3) to rotate and stop the magazine (3). The disc is delivered between the ejecting part (4) and the playing part (9) and the magazine, and the playing part (9) supports the disc rotatably between the turntable (922) and the clamper (93). In a recording disk playing device for playing, the upper part of the disk group provided above the magazine (3) is guided, and the central cylindrical portion (39) of the magazine (3) is penetrated. A leg member (50) fitted to the upper part of the support pillar (10) and a guide member support pillar (11) provided on the base chassis (1) and projecting near the outer periphery of the magazine (3)
A guide member (5) supported by a plurality of leg pieces (51) fitted to the guide member (5), and the guide surface (52) of the guide member (5) prevents the disc from falling out of the magazine (3). The cross-section is formed into an annular groove shape that substantially matches the outer circumference curvature of the disc,
A guide member at the same interval as the angle formed by the disc loading / unloading portion (4) and the playing portion (9) around the central leg piece (50).
A recording disk playing device characterized in that guide grooves (53) (54) are formed to allow the disk to be transferred to the magazine (3) in the radial direction of (5). 3. A disc loading groove provided on a side of a rotation transfer path of the magazine by accommodating the disc in a disc holding groove (31) formed substantially radially in the magazine (3) to rotate and stop the magazine (3). The disc is delivered between the ejecting part (4) and the playing part (9) and the magazine, and the playing part (9) supports the disc rotatably between the turntable (922) and the clamper (93). In a recording disk playing device for playing, the upper part of the disk group provided above the magazine (3) is guided, and the central cylindrical portion (39) of the magazine (3) is penetrated. A leg member (50) fitted to the upper part of the support pillar (10) and a guide member support pillar (11) provided on the base chassis (1) and projecting near the outer periphery of the magazine (3)
A guide member (5) supported by a plurality of leg pieces (51) fitted to the guide member (5), wherein the guide member (5) has the outer peripheral portion of the guide member as a base and the outer peripheral portion is closer to the central leg piece (50) Notch (55)
And a detachable lid (56) attached to the cutout portion. 4. The lid (56) according to claim 3, characterized in that the guide surface (52a) of the lid is continuous with the guide surface (52) of the guide member (5). Recording disk playing device.