JPH065591B2 - Auto loading disc player - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and more particularly to an auto loading disc player having a disc carrying mechanism for automatically carrying a disc to a playing position.

Conventionally, it has been desired to develop a device for automatically loading a disc in a player playing a video disc or a digital audio disc.

Therefore, it is an object of the present invention to provide an auto-loading disc player equipped with a disc transport mechanism capable of automatically transporting a disc to a playing position.

The auto loading disc player according to the present invention is
Disc playing means, a tray carrying means for carrying the tray between a predetermined position and a predetermined playing position of the disc playing means, and a release for releasing the locking of the disc by the locking means before the playing of the disc by the playing means An automatic loading disc player including means, wherein the locking means moves to the tray, and first positioning means provided near the outer peripheral edge of the disc mounting surface of the tray and contacting the outer peripheral surface of the disc. And a second positioning means for freely holding the disk on the disk mounting surface in cooperation with the first positioning means, the second positioning means being urged in the direction of coming into contact with the outer peripheral surface of the disk. The releasing means comprises a mechanism for separating the second positioning means from the outer peripheral surface of the disk.

Embodiments of an auto loading disc player according to the present invention will be described below with reference to the drawings.

In the figure, 1 is a main body of an auto loading disc player. A chassis 2 is attached to the housing 3 of the main body 1 via an elastic body (not shown) such as float rubber. A turntable 6 rotatably driven by a drive motor 5 is inserted into a substantially circular opening 2a, a part of which is provided substantially at the center of the chassis 2 and is continuous with the long hole 2c. This turntable 6 is a disc-shaped member 4 having a substantially dish shape fitted to the output shaft 5a of the drive motor 5.
A support member 96 made of a magnetic material, which is fitted to the tip of the output shaft 5a and to which the ring-shaped magnet 95 is fixed, and which constitutes a magnetic circuit, the disk carrying member 4, and the support member 96.
And a coil spring 98 for applying a predetermined biasing force upward to the sliding member 97 in FIG. 3, and a fixing member 99. The cup spring 100 is concentrically fixed to the disk carrying member 4 by the cup spring 100, and a plurality of rubbers 111 are substantially concentrically arranged and fixed to the upper surface of the outer peripheral portion of the cup spring 100. . Further, a recess 96a is provided at the center of rotation of the support member 96, and a taper portion 97a for fitting the center hole 7a of the disk 7 and positioning the center of the disk 7 is provided on the outer periphery of the sliding member 97. It is provided. The long hole portion 2c is an information reading pickup device (not shown) in which the auto loading disc player of this embodiment constitutes a part of the disc playing means together with the drive motor 5 and the turntable 6.
It is provided because the disk 2 and the disk 7 are positioned so that the chassis 2 is sandwiched between them.

The disc transport mechanism 9 turns the disc 7 into the turntable 6
Which is to be conveyed upward, and which includes the drive device 10 and the chassis 2
Rails 1 as guide means fixed to both ends of the rail
1st and 2nd rail 12, 1st rail 11 and 2nd
Each of them is slidably fitted to the rails 12 of the rear side (arrow A
Direction) and a first cam member 13 and a second cam member 14 that slide forward, and a disk 7 that carries and is carried by the first cam member 13 and the second cam member 14. The tray 15, a pair of cam synchronizing members 16 and 17 that are disposed so as to intersect with each other and that serve to synchronize the operations of the first cam member 13 and the second cam member 14, and at a predetermined position on the chassis 2. It is constituted by a stopper portion 19 which is fixed and provided on the rear end portion of the tray 15 as a regulating means with which the pair of rollers 18 can contact, and a pair of stoppers 20 having a rounded tip portion 20a. . In addition, an opening 18a into which the stopper 20 is fitted is provided near the roller 18 of the tray 15.

As shown in FIG. 4, a pair of cam grooves 21 and 22 are provided in the front part and the rear part of the first cam member 13. The cam groove 21 is composed of horizontal portions 21a and 21b parallel to the sliding direction of the cam member 13 and an inclined portion 21c continuous to the horizontal portions 21a and 21b. The length of the horizontal portion 21b is shorter than the length of the horizontal portion 21a. It is formed longer by a predetermined length.
The cam grooves 22 are parallel to the sliding direction of the cam member 13 and have horizontal portions 22a and 22b and horizontal portions 22a and 22b whose lengths are equal to the lengths of the horizontal portions 21b and 21b of the cam groove 21, respectively. It is continuous and its length is the cam groove 21.
And a slanted portion 22c having the same length as that of the slanted portion 21c. Although not shown, the second cam member 14 is provided with a pair of similarly formed cam grooves. The tray 15 has the first cam member 13 and the second cam by the two pairs of engaging members 23 and 24 fixed to both ends thereof being slidably engaged with the two pairs of cam grooves. It is carried by the member 14.

One end of the cam synchronizing member 16 is rotatably supported by a supporting member 25 slidably mounted in a long hole 2a provided in the chassis 2, and the other end thereof is a projecting portion 13a of the first cam member 13. It is rotatably supported by a supporting means 13b provided on the. Further, one end of the cam synchronizing member 17 is rotatably supported by a supporting means 2b provided on the chassis 2, and the other end is slid on an elongated hole 14b provided on an overhanging portion 14a of the second cam member 14. It is rotatably supported by a support member 26 that is movably attached. Also, the tray 15
Is urged in the direction of arrow A by a pair of coil springs 27 and 28, one end of which is connected to predetermined positions of the first and second cam members 13 and 14 and the other end of which is connected to the tray 15.

Further, the support means 30 fixed to a predetermined position on the side of the first rail 11 has a pinion gear portion 31 having a predetermined pitch circle diameter ratio.
A double gear 33 having a large gear 32 is rotatably supported. The small gear part 31 is engaged with a rack part 34 a of a retainer 34 slidably fitted in a guide part 11 a provided on the first rail 11, and the large gear part 32 is provided.
Engages with a rack portion 13c provided on the first cam member 13. The double gear 33 and the retainer 34 together with the rack portion 13c of the first cam member 13 constitute a so-called double speed mechanism.

The drive device 10 includes a support unit 40 provided on the chassis 2.
4 and one end of which is connected to the outer member 41 and the other end of which is connected to the chassis 2 so that the outer member 41 is urged in the clockwise direction in FIG. Coil spring 42, power motor 43 fixed to exterior member 41, small pulley 44 fitted to output shaft 43a of power motor 43, and exterior member 4
1, a large pulley 47 that is rotatably supported by a support means 45 provided on the No. 1 and is connected to a small pulley 44 and a belt 46, and a rack portion that is rotatably supported by the exterior member 41 and is provided on a retainer 34. 34b, a retainer drive gear 48 and a large pulley 47, which are concentrically fixed to the large pulley 47, and are rotatably supported by a rotatable pinion 49 and an outer member 41, and the large gear portion 50 is engaged with the pinion 49. In addition, the small gear portion 51 is constituted by a reduction gear mechanism including a double gear 52 that engages with the retainer drive gear 48.

A lever 57 is rotatably supported by a supporting means 58 in the approximate center of the rear end portion of the tray 15, and the lever 57 has one end connected to the lever 57 and the other end connected to the tray 15. Support means 58 by coil spring 59
Is urged in the counterclockwise direction in FIG. This lever 57, together with the other two disk holding members 55 and 56 fixedly provided near the front end portion on the tray 15, holds the disk 7 at a predetermined position on the tray 15 while holding the peripheral edge of the disk 7 at three points. A positioning device for positioning is configured.

Further, the disc holding member 55 is provided with a detection switch 60 for transmitting a detection signal by detecting that the disc 7 is supported at three points, that is, positioned at a predetermined position on the tray 15. The power motor 43 rotates according to the detection signal from the switch 60. Further, on the tray 15, an upright portion 15d provided at the rear edge of the tray 15 is provided at a predetermined position of the lever 57 as a stopper for restricting the clockwise rotation of the lever 57 in FIG. 2 with a predetermined degree of freedom. It is provided.

A front panel 65 forming a part of the housing 3 is provided with a slot 66 having a substantially rectangular lateral shape for inserting the disk 7 into the main body 1. The central axis of the slot 66 in the lateral direction is the tray 15 of the tray 15. It substantially coincides with the central axis in the transport direction. At approximately the center of the bottom of the opening of the slot 66,
When the disc 7 inserted from the slot 66 is slightly lowered from the insertion height position, the disc holding members 55 and 5 are inserted.
A concave portion 66a is provided so that a part of the disk 7 can be protruded to the outside of the main body with a predetermined degree of freedom while being held by the lever 6 and the lever 57 and positioned at the predetermined position. Since the slot 66 is provided such that the bottom of the opening is located higher than the uppermost ends of the disc holding members 55 and 56, it is possible to prevent the disc holding members 55 and 56 from inserting the disc when the disc is inserted. Absent.

On the other hand, a slot opening / closing door 68 rotatably supported by a supporting means 67 provided on the front panel 65.
Is opened via a connecting mechanism 70 by a plunger 69 as a door driving device that is fixed to the chassis 2 and that operates in response to an operation signal, and closes by its own weight when the plunger 69 is de-energized.

In FIG. 6, the door lock mechanism 71 closes the door 68 when the tray 15 carried by the first cam member 13 and the second cam member 14 is conveyed backward and reaches a predetermined position. And a long hole 73a provided at the other end is rotatably supported at one end by a support means 72 provided at the door 68 and a protrusion 12a provided at the second rail 12. And a coil spring having one end rotatably supported by a support member 12b provided at a predetermined position of the second rail 12 and one end connected to the second rail 12. The lock member 75 is urged clockwise in FIG. 6 about the support means 12b by 74. In the lock member 75, when the second cam member 14 is in a predetermined range on the second rail 12 in the front direction (the direction opposite to the arrow A), the first engaging portion 75a of the lock member 75 has the second cam member. It is installed so as to slidably engage with the sliding surface 14c of 14 and to release the engagement when the second cam member 14 moves to a predetermined rear position. At the same time when the engagement is released, the second engaging portion 75b of the lock member 75 engages with the other end of the connecting member 73 to lock the door 68 in the closed state.

Three points of support are provided on a substantially flat plate-shaped clamper support member 79, which is firmly supported by a pair of support portions 15a provided at both ends of the tray 15 and a disc bearing surface 15b of the tray 15 with a predetermined gap. A substantially circular opening 79a corresponding to the center hole 7a of the formed disk 7 is provided, and the center of the tray transport direction (direction of arrow A) slightly to the front of the peripheral edge of the opening (direction opposite to arrow A). A pair of protrusions 79b are provided at positions symmetrical with respect to the axis.

A clamper 80 acting as a disk pressing member is carried on the protrusion 79b so as to be substantially concentric with the opening 79a and movably within a predetermined range.
Since 9b is provided slightly forward of the opening 79a, the disk pressing surface 80a of the clamper 80 is held so as to be inclined so as to face the disk insertion direction (the direction of arrow A), and the disk 7 is inserted. At this time, the disk pressing surface 80a of the clamper 80 is limited to contact the disk 7. A ring-shaped magnetic member 81 is fitted to the clamper 80, and a protrusion 80b capable of fitting in the recess 96a of the support member 96 is provided at the center thereof. The protrusion 80b is preferably made of a non-magnetic material and may be composed of a separate member.

When the disk 7 is clamped on the turntable 6, the disk holding members 55 and 56 together with the disk 7 are held.
A lever 57 for supporting the three points is urged in the clockwise direction in FIG. 2 by a drive mechanism (not shown) to release the three point support. Also, immediately before the playing is finished and the clamp of the disk 7 is released, the lever 5
The urging by the drive mechanism (not shown) of No. 7 is also released.

Next, the operation of the auto-loading disc player having the above-mentioned configuration will be described according to the operation procedure with reference to the drawings.

As shown in FIG. 2 and FIG. 5, the disc 7 inserted while being slid on the bottom side of the opening of the slot 66 and tilted slightly downward in the insertion direction has two disc holding members 55 and The tip portion abuts on the lever 57 after passing over 56. By pushing the disk 7 further, the lever 5
The reference numeral 7 rotates in the clockwise direction in FIG. 2 about the support means 58 and against the biasing force of the coil spring 59. When the lever 57 rotates by a predetermined amount, a stopper (upright portion 1
The rotation of the disk 7 is regulated by 5d), and at the same time, the portion of the disk 7 projecting from the slot 66 is accommodated in the recess 66a provided at the bottom of the opening of the slot 66. It is placed on 15b. In this state, when the hand is released from the disk 7, the disk 7 is slightly pushed back by the lever 57 biased by the coil spring 59, and its peripheral portion is supported at three points by the lever 57 and the disk holding members 55 and 56.

Even if the disk 7 contacts the disk pressing surface 80a of the clamper 80 in the process of inserting the disk 7, the disk 7 passes over the disk pressing surface 80a of the clamper 80 so as to lift the clamper 80 upward.
The contact with the clamper 80 does not prevent the insertion of the disk 7.

When the disk 7 is supported at three points, the power motor 43 makes a positive rotation (counterclockwise rotation in FIG. 4) in response to a detection signal from the detection switch 60, whereby the retainer drive gear 48 becomes smaller. Pulley 44, belt 46, large pulley 4
7, the pinion 49 and the double gear 52 are rotatably driven. Then, the first cam member 13 and the first cam member 13 which are mechanically connected to the retainer drive gear 48 via the double speed mechanism composed of the retainer 34 and the double gear 33, and the pair of cam synchronizing members 16 and 17 are used. The connected second cam member 14 begins to slide backward (in the direction of arrow A) at a certain speed.

The door 68 can be freely opened and closed until the second cam member 14 slides on the second rail 12 to reach the predetermined position, but when the second cam member 14 reaches the predetermined position. The engagement between the second cam member 14 and the lock member 75 is released, and the lock member 75 is rotated by the coil spring 74 from the state shown by the chain double-dashed line to the state shown by the solid line as shown in FIG. Since the second engaging portion 75b of the lock member 75 is engaged with the connecting member 73, the door 68 is locked in the closed state. Therefore, since the door 68 is not opened after the disc 7 is inserted, the user's finger does not touch the disc 7 rotating at high speed, and the laser beam used for reading information during reproduction does not leak outside. Further, when a force that prevents the disk 7 is applied during the transfer of the disk 7 by, for example, grasping the disk 7 protruding from the slot 66 by hand, it is possible that an excessive force is applied to the disk transfer mechanism 9. However, since the drive device 10 is rotatable about the support means 40, the retainer drive gear 48 and the rack portion 34 b of the retainer 34 are provided.
Since the engagement with is released and the retainer drive gear 48 idles with respect to the rack portion 34b, there is no risk of damage to the gear.

The pair of rollers 18 provided on the tray 15 immediately before the disk 7 is conveyed right above the turntable 6 may contact the tip 20a of the stopper 20 provided on the chassis 2, but the tip 20a is Since it is processed into a round shape, it passes through so as to get over it and contacts the stopper portion 19 provided on the chassis 2. In this state, the disc 7 is located right above the turntable 6.

As described above, the first cam member 13 and the second cam member 14 are biased by the coil springs 27 and 28 even after the horizontal movement of the tray 15 is restricted by the contact of the roller 18 with the stopper portion 19. Further, the engaging member 23 provided on the tray 15 is driven along the cam grooves 21 and 22 provided on the first cam member 13,
Similarly, the engagement member 24 slides along a cam groove (not shown) provided in the second cam member 14. Therefore, the tray 15 moves downward by its own weight. The stopper 20 is fitted into the opening 18 a provided in the tray 15 as the tray 15 moves vertically. Further, the roller 18 rolls along the stopper portion 19.

By the downward movement of the tray 15, the center hole 7a of the disc 7 engages with the taper portion 97a of the sliding member 97 which is a constituent member of the turntable 6, so that the disc 7 is guided to the playing position and positioned to turn. Table 6
Placed on top. Almost at the same time when the disk 7 is placed on the turntable 6, a magnetic member 81 fitted to the clamper 80 and a ring-shaped magnet 95 fitted to the support member 96 which is a constituent member of the turntable 6 are provided. During this period, an attractive force is generated by the magnetic force, so that the disk 7 moves together with the clamper 80 and the sliding member 97 against the biasing force of the coil spring 98 until the disk 7 comes into contact with the disk carrying member 4. In the process of this movement, the disc 7 comes into contact with the rubber 111 to bend the cup spring 100. Therefore, when the disc 7 comes into contact with the disc carrying member 4, the rubber 111 is pressed against the disc 7 by the cup spring 100. .

Thus, the disk 7 is clamped on the turntable 6, but since a sufficient frictional force is exerted between the rubber 111 and the disk 7, the disk 7 is reliably driven according to the rotation of the turntable 6. Is done. When the disc 7 is clamped, the lever 57 for supporting the disc 7 at three points together with the disc holding members 55 and 56 is urged in the clockwise direction in FIG. 2 by a drive mechanism (not shown) or the like to support the three points. It will be canceled. The performance starts in this state.

When the performance is completed and an operation signal for returning the disk 7 to the slot 66 is issued, first, the clockwise urging of the drive mechanism (not shown) of the lever 57 is released, so that the disk 7 is released. Three points are supported again. Next, the power motor 43 rotates in the reverse direction (clockwise rotation in FIG. 4). Then, the first cam member 13 and the second cam member 1
4 is driven forward (in the direction opposite to the arrow A), but the movement of the tray 15 in the horizontal direction is restricted by the roller 18 provided on the tray 15 contacting the stopper 20. Since the first cam member 13 and the second cam member 14 are further driven, the engaging member 2 provided on the tray 15
3 slides along the cam grooves 21 and 22 of the first cam member 13, and similarly, the engagement member 24 slides along a cam groove (not shown) provided on the second cam member 14, 1
5 starts moving upwards. When the tray 15 is moved, the cam groove 2 provided in the first cam member 13 is used.
The length of the second horizontal portion 22a is longer than the length of the horizontal portion 21a of the cam groove 21 by a predetermined amount, and the cam groove (not shown) of the second cam member 14 is similarly formed. Therefore, there is a time difference in the movement between the front portion and the rear portion of the tray 15, and the front portion rises in a manner leading the rear portion.

First, the clamper 80 is moved by moving the tray 15 upward.
The clamped state of the disc 7 is released by, but as described above, since the front portion of the tray 15 moves ahead of the rear portion, one end of the disc 7 and the clamper 80 also precedes the other end. It is lifted and removed. When the clamper 80 is removed, the disk 7 and the sliding member 97 are returned to the state before clamping by the biasing force of the coil spring 98, and the rubber 11
1 also returns to the original state by the restoring force of the cup spring 100.

At almost the same time as the lifting of the tray 15 is completed, the roller 18 is
Passes over the tip portion 20a of the stopper 20, the restriction of the horizontal movement of the tray 15 is released, and the tray 15 starts to move horizontally toward the slot 66.

When the second cam member 14, which carries the tray 15 together with the first cam member 13, slides on the second rail 12 and reaches a predetermined position, the second cam member 1 as shown in FIG.
4 and the sliding surface 14c are engaged with the first engaging portion 75a of the lock member 75 to move the lock member 75 to the coil spring 7.
The door 68 is unlocked by rotating it from the state shown by the solid line to the state shown by the two-dot chain line against the urging force of 4.

The tray 15 continues to move horizontally, and the disk 7 is in the slot 6
6, and a part thereof projects from the recess 66a of the slot 66. When the protruding portion is slightly lifted with a finger or the like, the disk 7 is released from being supported by the disk holding members 55 and 56 and is also ejected from the slot 66 by the lever 57 and is recovered.

7, 8 and 9 (a) and (b), the disc 15 is engaged with three points on the outer peripheral portion of the disc 15 so that the tray 15
Another embodiment of a positioning device for positioning at a predetermined position above is shown.

At a predetermined position on the chassis 2, the center hole 7a of the disk 7 is engaged with the outer peripheral portion of the disk 7 carried by the tray 15 which has been moved horizontally and is moved downward. The three disc guides 85, 86 and 87 for guiding and positioning the disc so as to be engaged with the taper portion 97a of the sliding member 97, which is a constituent member thereof, are fixedly installed. Further, the tray 15 is provided with openings 88 and 89 into which the disk guides 86 and 87 can be inserted respectively as the tray 15 moves downward.

The disc guide 85 includes a bracket 90 fixed to the chassis 2 and a shaft 91 fixed to the bracket 90.
The guide member 92 is rotatably supported by the guide member 92 and a biasing spring 93 that biases the guide member 92 in the direction of arrow B (see FIG. 9 (b)). A protrusion 92c having a guide surface 92a and an engaging surface 92b that engage with the outer peripheral portion of the disk 7 is provided. The guide member 92 has a predetermined clearance between the guide member and the outer peripheral portion of the disk 7 in a state where the center hole 7a of the disk 7 is engaged with the tapered portion 97a of the sliding member 97 which is a constituent member of the turntable 6. Are formed and arranged so that Further, the other disc guides 86 and 87 have the same structure as the disc guide 85. Next, the operation of the positioning device of this embodiment will be described with reference to the drawings.

When the tray 15 carrying the disk 7 finishes horizontal movement and starts vertical downward movement, the two disk guides 86 and 87 are fitted into the openings 88 and 89 provided in the tray 15. The outer peripheral portion of the disk 7 is a guide surface 92a provided on the guide member 92 of the disk guide 85.
And the guide surfaces provided on the guide members of the other two disc guides 86 and 87 at three points. The disc 7 is guided by the three guide surfaces so that the center hole 7a of the disc 15 is engaged with the taper portion 97a of the sliding member 97 which is a constituent member of the turntable 6 as the tray 15 moves vertically. And it is positioned. With the center hole 7a of the disc 7 engaged with the tapered portion 97a of the sliding member 97, the guide member 92 of the disc guide 85 is provided.
A predetermined clearance is maintained between the disk and the outer peripheral portion of the disk 7, and the other two disk guides 86 and 87.
A similar clearance is maintained between the guide member and the guide member. In this state, the disc 7 is clamped on the turntable 6 and the performance is started.

When the playing is finished and the clamped state of the disk 7 is released, the tray 15 starts to move up. When the tray 15 is lifted by a predetermined amount, the outer peripheral portion of the disc 7 may engage with the engaging surface 92b provided on the guide member 92 of the disc guide 85. However, since the guide member 92 is rotatable, the drain 15 Keeps rising while rotating it in the direction opposite to the arrow B against the urging force of the urging spring 93. Immediately before the tray 15 finishes lifting, the disc 7 and the engaging surface 92
The engagement state with b is released, and the guide member 92 is returned to the original state by the biasing spring 93.

On the other hand, the other two disk guides 86 and 87 also perform the same operation in synchronism with the series of operations of the disk guide 85.

As described above in detail, the auto-loading disc player according to the present invention is provided with the disc carrying mechanism capable of automatically delivering a disc such as a video disc or a digital audio disc to the playing position, so that it takes time and effort to load the disc. Can be omitted.

Further, when the disc is placed on the tray, the disc is held by the positioning means and conveyed, so that the disc does not shift due to external vibration or the like, and the loading is surely performed even if the device is tilted.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing the entire auto loading disc player according to the present invention, FIG. 2 is a plan view showing the internal structure of the auto loading disc player, and FIG.
FIG. 4, FIG. 4 and FIG. 5 are front views including partial cross sections of the internal structure, left side views including partial cross sections and right side views including partial cross sections, and FIG. Figure, Figure 7,
8 and 9 (a) and 9 (b) are views showing another embodiment of the positioning device. Description of symbols of main parts 1 ... Main body, 2 ... Chassis 3 ... Housing 4 ... Disk carrying member 5 ... Drive motor, 6 ... Turntable 7 ... Disc, 7a ... Center hole 9 ... Disc Conveyance mechanism 10 ... Driving device, 11 ... First rail 12 ... Second rail 12a ... Protrusions 12b, 30, 40, 45, 58, 67, 72 ... Supporting means 13 ... First Cam member 13c, 34a, 34b ... rack portion 14 ... second cam member 14c ... sliding surface, 15 ... tray 15b ... disk carrying surface 16, 17 ... cam synchronizing member 18 ... roller 18a, 79a ... Opening part 19 ... Stopper part, 20 ... Stopper 21,22 ... Cam groove 21a, 21b, 22a, 22b ... Horizontal part 21c, 22c ... Slanting part, 23,24 ... Engaging member 27 ， 8, 42, 59, 74 ... Coil spring 31, 51 ... Small gear part 32, 50 ... Large gear part 33, 52 ... Double gear 34 ... Retainer, 41 ... Exterior member 43 ... Power motor, 43a ... … Output shaft 44 …… Small pulley, 46 …… Belt 47 …… Large pulley 48 …… Retainer drive gear 49 …… Pinion 55,56 …… Disk holding member 57 …… Lever, 60 …… Detection switch 65 …… Front Panel 66 ... Slot, 66a ... Recess 68 ... Door, 69 ... Plunger 70 ... Connection mechanism, 71 ... Door lock mechanism 73 ... Connection member, 75 ... Lock member 75a ... First engagement Part 75b ...... Second engaging part 79 ...... Clamper support member 79b ...... Projection part, 80 ...... Clamper 80a ...... Disc pressing surface 81 ...... Magnetic member 85,86,87 ...... Disc guide 88, 89 ... Opening portion, 90 ... Bracket 91 ... Shaft, 92 ... Guide member 92a ... Guide surface, 92b ... Engaging surface 95c ... Projection, 93 ... Biasing spring 95 ... Ring-shaped magnet 96 ... Support member, 97 ... Sliding member 98 ... Coil spring, 99 ... Fixed member 100 ... Cup spring 111 ... Rubber

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junji Takahashi 42610 Hanazono, Tokorozawa, Saitama Prefecture Pioneer Video Co., Ltd. Tokorozawa Plant (72) Inventor Kyoichi Kato 4-2610 Hanazono, Saitama Prefecture Pioneer Video Co., Ltd. Company Tokorozawa Factory (56) Reference JP-A-57-88560 (JP, A) JP-A-54-111304 (JP, A) Patent No. 119525 (JP, C2)

Claims (1)

[Claims] 1. A disc playing means, a tray carrying means for carrying a tray between a predetermined position and a predetermined playing position of the disc playing means, and a disc engaging means for engaging the disc before the playing of the disc by the playing means. An automatic loading disc player comprising a releasing means for releasing a stop, wherein the locking means is a first positioning means provided near an outer peripheral edge of a disk mounting surface of the tray and abutting on an outer peripheral surface of the disk. Second positioning means that is movably provided on the tray and is urged in a direction to come into contact with the outer peripheral surface of the disk and holds the disk on the disk mounting surface in cooperation with the first positioning means. The releasing means comprises a mechanism for disengaging the second positioning means from the outer peripheral surface of the disk. Disk player.