JPH0746458B2 - Disk player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A Industrial Field B Outline of the Invention C Prior Art D Problems to be Solved by the Invention E Means for Solving Problems F Action G Example G-1 Structure of Main Parts and Disk Cartridge (First
(Fig. 2) G-2 Disc mounting mechanism and operation (Figs. 1 and 3) G-3 Disc drawer mounting operation (Figs. 3 and 4) G-4 Disc storing operation (Fig. 4) G-5 Operation Effect H Effect of the invention A Industrial field of use The present invention is mounted with a disk cartridge that accommodates a disk tray on which a disk is mounted, pulls out the disk tray from the disk cartridge, and mounts it on the disk tray. The present invention relates to a disc player adapted to mount a disc on a disc mounting portion.

B Outline of the Invention The present invention is provided with a disc cartridge that accommodates a disc tray on which a disc is mounted, and through a disc tray pulled out from the disc cartridge,
In a disc player in which the disc is supplied to the disc mounting portion, the tray pull-out position at which a part of the disc placed on the disc tray pulled out from the disc cartridge remains in the disc cartridge is determined. And let
A disc that engages with a disc placed on the disc tray in the tray pull-out position is supported by the first movable support member, and the disc that is disposed opposite to the disc mount and is engaged with the disc mount A clamp portion for clamping the second movable support member,
A position slightly lifted from the disc tray on the disc mounted on the disc tray in the tray pull-out position by driving both the first and second movable support members to bring the disc mounting portion and the clamp portion close to each other. In the above, by engaging the disc mounting portion and allowing the clamp portion to be clamped, the disc can be securely mounted to the disc mounting portion, and the entire disc tray in the direction of pulling out the disc tray from the disc cartridge. The size of the disk cartridge and the thickness of the disk cartridge can be reduced.

C Conventional technology Discs on which information signals are recorded, such as digital discs
In a disc player that reproduces an information signal from an audio disc, a disc cartridge in which a plurality of disc trays, on which discs are respectively placed, are mounted, is detachably mounted. It has been proposed to provide a disc changer mechanism for selectively feeding a disc from a cartridge to a disc mounting portion.

In a disc player provided with such a disc changer mechanism, a tray drawer mechanism that forms a part of the disc changer mechanism and is linearly movable between the cartridge mounting portion where the disc cartridge is mounted and the disc mounting portion is provided. The disc tray is pulled out from the disc cartridge to the disc mounting portion side so that the entire disc placed on the disc tray is located outside the disc cartridge. Then, the disc placed on the pulled-out disc tray is moved upward while being engaged with the disc mounting portion, and is clamped by the clamp portion and the disc mounting portion positioned above the disc mounting portion. The disc mounting portion is mounted, and the reading means reads the information signal from the disc mounted in the disc mounting portion.

D Problem to be Solved by the Invention However, in the case of the disc player having the disc changer mechanism as described above, the disc housed in the disc cartridge reaches the position where the entire disc is ejected to the outside of the disc cartridge. After the disc tray on which is loaded is pulled out by the tray pull-out mechanism, the disc is loaded into the disc loading section, so the operating space of the tray pull-out mechanism becomes large and the dimension of the disc tray in the pull-out direction of the entire disc player For example, the depth dimension becomes large, and the disc player becomes large.

Therefore, the mounting of the discs mounted on the plurality of disc trays housed in the disc cartridge mounted on the cartridge mounting unit to the respective disc mounting units is performed by mounting the disc tray on which the discs are mounted onto the disc cartridge from the disc cartridge. It is conceivable that the size of the placed disc in the direction of pulling out the disc tray from the disc cartridge is reduced by pulling it out until the entire disc appears outside the disc cartridge.

However, in such a case, the disc that has been pulled out while part of it remains in the disc cartridge is moved upward, and the disc is mounted by holding it between the disc mounting portion and the clamp portion located above it. There is sufficient space in the disc cartridge's thickness direction so that a part of the disc remaining in the disc cartridge will not come into contact with the disc tray or the like housed in the disc cartridge when the disc is mounted on the disc cartridge. It becomes necessary, and therefore the thickness of the disk cartridge becomes large.

In view of such a point, according to the present invention, the mounting of the disc mounted on the disc tray accommodated in the disc cartridge mounted on the cartridge mounting part to the disc mounting part is such that the disc tray accompanied by the disc is mounted on it. The disc is moved to the tray pull-out position where a part of the disc remains in the disc cartridge, and the dimension in the pull-out direction of the disc tray from the disc cartridge can be reduced. SUMMARY OF THE INVENTION It is an object of the present invention to provide a disc player in which the moving distance of the disc when mounting the disc on the disc is reduced and the disc cartridge can be made thinner.

E Means for Solving the Problems In order to achieve the above-mentioned object, the disc player according to the present invention pulls out the disc tray from the disc cartridge accommodating the disc tray on which the disc is placed and pulls out the disc tray. The tray pull-out mechanism that takes the tray pull-out position where a part of the disc placed on the disc remains in the disc cartridge, and the disc mounting that engages the disc placed on the disc tray that takes the tray pull-out position First supporting part
Of the first movable support member, the second movable support member that is arranged to face the disc mounting portion and supports the clamp portion that clamps the disc engaged with the disc mounting portion, and both the first and second movable support members. It is configured to include a drive mechanism that drives the disc mounting portion and the clamp portion to come close to each other, and the disc mounting portion and the clamp portion that are brought close to each other by the drive mechanism make the disc tray in the tray pull-out position. The mounted disc is brought into a state in which it is engaged with the disc mounting portion and clamped by the clamp portion at a position slightly raised from the disc tray.

F Action In the disc player according to the present invention as described above, when the disc cartridge is mounted in the cartridge mounting portion and the disc mounted on the disc tray in the disc cartridge is mounted in the disc mounting portion, the tray pull-out mechanism Engages a disc tray on which the disc in the disc cartridge is placed and draws it out from the disc cartridge between the first and second movable support members, and the pulled-out disc tray is placed on it. The disc is regulated to the tray pull-out position where a part of the disc remains in the disc cartridge. Then, the drive mechanism drives both the first and second drive support members to cause the disc mounting portion and the clamp portion to sandwich the disc placed on the disc tray in the tray pull-out position and bring them closer to each other. As a result, the disc mounting portion engages with the disc placed on the disc tray in the tray pull-out position, and the disc is slightly lifted from the disc tray, while the clamp portion discs the disc engaged with the disc mounting portion. The disc is mounted on the disc mounting part in a state of being slightly lifted from the disc tray by sandwiching and clamping the disc with the mounting part.

Thus, in the disc player according to the present invention,
Since the disc is mounted in the disc mounting part with a part of the disc remaining in the disc cartridge, the dimension in the pull-out direction when the disc tray is pulled out from the disc cartridge by the tray pull-out mechanism is reduced, and the overall size is reduced. In addition, since the disc is only slightly lifted from the disc tray when mounted in the disc mounting portion,
The required space in the thickness direction in the disc cartridge is reduced, and as a result, the disc cartridge can be made thinner.

That is, when the disc tray is pulled out from the disc cartridge by the tray pulling-out mechanism, in order to avoid interference between the disc tray or the disc and the disc mounting portion or the clamp portion, between the disc tray and the disc mounting portion and between the disc and the clamp portion. A relatively large air gap is required between and. Therefore, when the disc on the disc tray in the tray pull-out position is engaged with the disc mounting portion and is clamped by the clamp portion, the clamp portion is temporarily fixed, and the clamp portion is fixed to the fixed clamp portion. On the other hand, if the disk mounting part is made to be close to the disk,
At that time, the disc mounted on the disc tray in the tray pull-out position is lifted by the disc mounting portion by a relatively large gap between the disc tray and the clamp portion and abuts on the clamp portion. As a result, in the disc cartridge,
Since a relatively large space is required above the discs placed on each disc tray, the disc cartridge cannot be made thinner.

On the other hand, in the disc player according to the present invention, when the disc on the disc tray in the tray pull-out position engages with the disc mounting portion and is clamped by the clamp portion, Both the clamp part and the clamp part are close to each other, and the clamp part is moved so as to come into contact with the disc engaged with the disc mounting part, so that the disc placed on the disc tray in the tray pull-out position is In order to take a position slightly lifted from the disc tray, it can only be moved by a distance smaller than the gap provided between the disc and the clamp part. It is said that the space required above the disk is extremely small. It's so that the thinning of the I disk cartridge can be achieved.

G Example G-1 Configuration of essential parts and disk cartridge (first
(FIG., FIG. 2) FIG. 1 shows an essential part of an example of a disc player according to the present invention.

In this example, the cartridge mounting portion 30 is fixed to the fixed chassis 10 via the mounting portion 11, and the cartridge mounting portion 30 has a mounting base 31 and cartridge guide portions 32 provided on both sides thereof. Is formed.

As the disc cartridge mounted in such a cartridge mounting portion 30, for example, a disc cartridge as shown in FIG. 2 is used. The disc cartridge 20 shown in FIG. 2 has a casing 21, an opening 22 is provided on one side of the casing 21, and the casing 21 is rotatable. A plurality of disc trays 23 that are axially mounted and on which discs D are placed are accommodated in parallel in a stacked state. A metal piece 24 is attached to each disc tray 23, and each disc tray 23
When the metal pieces 24 are stored in the box 21, each metal piece 24
By being magnetically attracted to the plate-shaped magnet 25 fixed to the inner surface of the side wall of 21, the position is regulated to the storage position. Further, each disc tray 23 is formed with a notch portion 26 that engages with the tray pull-out mechanism when it is rotated by a tray pull-out mechanism to be described later and pulled out from the disc cartridge 20 as shown in the drawing. Further, the flat surface portion of each disk tray 23 on which the disk D is placed has a V shape as a whole.

In addition, the motor 14 is attached to the fixed chassis 10,
Further, three feed screw members 16 are erected, and each of the feed screw members 16 has a worm gear 14a attached to the shaft of the motor 14, a transmission gear 17, and other gears to be described later. The rotation of is transmitted.

These 3 are rotated by the rotation of the motor 14 being transmitted.
A movable chassis 40 is screwed into each of the feed screw members 16 of the book with a female screw portion 18. As a result, the movable chassis 40 is driven up and down with respect to the cartridge mounting portion 30 by the rotation of the three feed screw members 16. That is, the motor 14,
Worm gear 14a, transmission gear 17, and three feed screw members 16
Form a lifting drive mechanism for the movable chassis 40 together with other gears (not shown). And
In order to control the position of the movable chassis 40 in the ascending / descending movement direction, the position of each disk tray 23 accommodated in the fixed chassis 10 when the disk cartridge 20 is mounted in the cartridge mounting portion 30 and the lower position thereof. A scale plate 13 having a slit 13a formed in relation to the scale plate 13 is provided, and the movable chassis 40 detects the slit 13a formed in the scale plate 13, for example, an optical slit sensor 41 is provided. There is.

In the movable chassis 40, the disc D selected from the disc cartridges 20 mounted in the cartridge mounting portion 30 is selected.
Tray pull-out arm 53 for pulling out the disc tray 23 on which is mounted, an arm drive unit 50 for driving the tray pull-out arm 53, and the disc tray from the disc cartridge 20.
A part of the disc D placed on the disc tray 23 remains in the disc cartridge 20 while guiding the tray pulling arm 53 that moves to pull out 23, and on the disc tray 23 which is moved out by the tray pulling arm 53. A tray withdrawing mechanism including a tray position restricting member 60 for setting the tray withdrawing position in a state is attached, and further, a supporting plate member 70 and a supporting plate member 70 for supporting a disk mounting portion 75 and an optical reading means 76 described later. And a clamp arm 80 which is a support member for supporting a clamp portion 85 for clamping the disc D engaged with the disc mounting portion 75 provided on the support plate member 70.

G-2 Disc Mounting Mechanism and Operation (FIGS. 1 and 3) The arm driving unit 50 includes a motor 42, a worm gear 43, and gears 51 and 52 fixed to a rising portion 40a on the cartridge mounting unit 30 side of the movable chassis 40. It is configured to include and.
The gear 51 is rotatably attached to the movable chassis 40,
It meshes with a worm gear 43 attached to the rotating shaft of the motor 42. The small-diameter gear 51a of the gear 51 meshes with the gear 52, and the driving force of the motor 42 is transmitted to the gear 52 via the worm gear 43 and the gear 51. The shaft of the gear 52 is fitted with a shaft formed at the end of the connecting portion 54 of the tray pull-out arm 53, and between the gear 52 and the connecting portion 54,
A spring 55 is provided, and the tray drawer arm 53 is
The gear 52 is urged to rotate with the rotation of the gear 52.

Each of the disc trays 23 accommodated in the above-mentioned disc cartridge 20 is provided at the tip of the main body of the tray withdrawing arm 53 formed in an L shape extending from the end of the connecting portion 54 substantially parallel to the movable chassis 40. A protruding engagement piece 56 for engaging with the notch portion 26 is provided, and a guide roller 57 is attached to a portion of the tip of the main body of the tray drawer arm 53 that hangs toward the movable chassis 40. Has been. The guide roller 57 is fitted in the lower guide groove portion 61 of the tray position restricting member 60 attached to the movable chassis 40, and the tray pull-out arm 53 is guided by the lower guide groove portion 61 and the gear 52 It is designed to rotate about the axis.

The tray position restricting member 60 extends along a circular arc substantially parallel to the movable chassis 40, and extends inside the lower guide groove portion.
61 is provided. Further, an upper guide groove portion 62 parallel to the lower guide groove portion 61 is formed on the upper portion of the lower guide groove portion 61, and the upper guide groove portion 62 is formed by the tray pull-out arm 53 by the tray pull-out arm 53, as described later. The disk tray 23 pulled out from the disk tray 23 is engaged with the peripheral edge portion of the disk tray 23 to support the drawn disk tray 23. Further, in the upper guide groove portion 62, a part of the disk D placed on the disk tray 23 that has been pulled out is stored in the disk cartridge 20.
A position regulating portion 62a for regulating the position with respect to the disc tray 23 is provided so that the tray withdrawing position in which it remains inside is taken.

As clearly shown in FIG. 3, the movable chassis 40 is attached to the gear 52 to which the shaft of the connecting portion 54 of the tray pull-out arm 53 is fitted.
A gear 58 rotatably attached to the gear meshes with it. A cam groove 59 is formed in the cylindrical portion 58a of the gear 58, and the pin 71 attached to the bent portion 70b of the support plate member 70 is engaged with the cam groove 59.

As shown in FIGS. 1 and 3, the support plate member 70 has leg portions 73 having elongated holes 73a formed at both ends thereof, and the leg portions 73 are attached to the movable chassis 40 as fulcrums. Board 45
Is rotatably mounted on a shaft 74, and is rotatable about the shaft 74.

On this support plate member 70, a disk mounting portion 75 which is rotationally driven by a spindle motor 90 is installed. Third
As shown in the drawing, the disc mounting portion 75 engages with the engaging member 78 that engages with the central hole D ′ of the disc D placed on the disc tray 23 pulled out from the disc cartridge 20 to the tray pull-out position by the tray pull-out mechanism. Has
This engaging member 78 is connected to the spindle motor 90 via a spring 79.
The rotary shaft 90a is fitted to the rotary shaft 90a so that it can move along the rotary shaft 90a.

Further, as shown in FIG. 1, the support plate member 70 also has an optical reading means 76 for reading an information signal from the disc D which is mounted on the disc mounting portion 75 and rotated.
Two guide shaft members 77 attached to the lower surface side of the support plate member 70 are supported and installed so as to be movable in the cutout holes 70a formed in the support plate member 70.

A clamp arm 80 is arranged above the support plate member 70. As shown in FIGS. 1 and 3, the clamp arm 80 has a leg portion 82 provided with connecting pins 83 at both ends thereof. The leg portions 82 are pivotally attached to the fulcrum plate 45 attached to the movable chassis 40 by the shaft 84.
The connecting pin 83 provided on the leg portion 82 is connected to the support plate member 70.
The clamp arm 80 is inserted into the long hole 73a formed in the leg portion 73 of the base plate 73, and the clamp arm 80 is rotated about the shaft 84 as a fulcrum in conjunction with the rotation of the support plate member 70 about the shaft 74 as a fulcrum. ing.

At the tip of the clamp arm 80, a magnet type clamp portion 85 is installed which faces the disc mounting portion 75.
As shown in FIG. 3, the clamp portion 85 includes an upper flange portion 86, a lower flange portion 87 having a fitting hole 87a that fits into the rotation shaft 90a of the spindle motor 90, and these upper flange portions. It is formed by including an annular magnet 88 held between 86 and a lower flange portion 87.

The support plate member 70 and the clamp arm 80 are normally positioned as shown by the alternate long and short dash line in FIG. 3, so that the disk mounting portion 75 and the clamp portion 85 are also indicated by the alternate long and short dashed line in FIG. As described above, they are separated from each other vertically.

G-3 Disc drawer mounting operation (FIGS. 3 and 4) With such a configuration, the disc cartridge 20 as shown in FIG. 2 is attached to the cartridge mounting portion 30 as shown in FIG. When a selected one of the disks D mounted on each of the disk trays 23 mounted in the disk cartridge 20 in a stacked state is mounted on the disk mounting portion 75, the motor 14 is started. Then, the elevating and lowering drive mechanism for the movable chassis 40 is activated to raise or lower the movable chassis 40, and under the control based on the detection output of the slit sensor 41, the tray pull-out arm 53 that moves up together with the movable chassis 40. The position where the protruding engagement piece 56 of the above engages with the notch 26 of the disc tray 23 accommodated in the disc cartridge 20 together with the selected disc D. It is caused to stop.

Then, in this state, the motor 14 is stopped and the motor 42 is started, and the start of the motor 42 causes the worm gear 43 and the gear 51 to rotate as shown in FIG.
The gear 52 is rotated in the direction indicated by the arrow a via. As a result, the tray pull-out arm 53 has its protruding engagement piece 56 engaged with the cutout portion 26 of the disc tray 23, and its guide roller 57 fitted into the lower guide groove portion 61 of the tray position regulating member 60. It is rotated in this state, and is moved from the position shown by the alternate long and short dash line in FIG. 4 to the position shown by the solid line while being guided by the auxiliary guide groove 61 of the tray position restricting member 60. Along with that, the disc tray 23 on which the selected disc D is placed is rotated, and the disc cartridge as shown by the alternate long and short dash line in FIG.
From the storage position inside the tray 20, it is guided to the upper guide groove portion 62 of the tray position regulating member 60 and pulled out to the outside of the disc cartridge 20, and as shown by the solid line in FIG. 4, the upper guide groove portion of the tray position regulating member 60. It is moved to the tray pull-out position where the position is regulated by the position regulating portion 62a provided on the 62. Thus, the tray drawer arm 53
With the disc tray 23 pulled out to the tray pull-out position by the disc D, the central hole D'of the disc D placed on the disc tray 23 is located outside the disc cartridge 20, but a part thereof is It is supposed to remain inside.

At this time, the tray pull-out arm 53 protrudes because the disc tray 23 pulled out by the tray pull-out arm 53 is regulated to the tray pull-out position by the position regulating portion 62a provided in the upper guide groove portion 62 of the tray position regulating member 60. The engagement piece 56 is stopped in a state where it is engaged with the cutout portion 26 of the disc tray 23 placed in the tray pull-out position, but the gear 52 is the fourth.
It is further rotated in the direction indicated by the arrow a in the figure against the biasing force of the spring 55. Therefore, the support plate member
With the pin 71 fixed to the bent portion 70b of the 70 fitted in the cam groove 59, the gear 58 in which the cam groove 59 is formed is rotated in the direction indicated by the arrow b in FIG. As a result, the support plate member 70 is pivoted about the shaft 74 to be rotated and raised, and is brought to a position close to the clamp arm 80 as shown by a solid line in FIG. As a result, the engaging member 78 of the disc mounting portion 75 engages with the central hole D ′ of the disc D placed on the disc tray 23 placed in the tray pull-out position from the lower surface side of the disc D, and the disc D Is slightly raised from the disc tray 23 so that the portion remaining in the disc cartridge 20 does not come into contact with any portion in the disc tray 23, and the disc D is placed on the disc mounting portion 75. It

Further, at this time, the clamp arm 80 is rotated about the shaft 84 as a support shaft and descends in conjunction with the rotation of the support plate member 70, and the support plate member as shown by the solid line in FIG.
Take a position close to 70. As a result, the lower flange portion 87 of the clamp portion 85 comes into contact with the disc D placed on the disc mounting portion 75 from the upper surface side, and the disc D is held and clamped by the disc mounting portion 75. In this case, the clamp portion 85 and the disk mounting portion 75 are magnetically engaged by the annular magnet 88 provided in the clamp portion 85.
Then, after that, the motor 42 is stopped.

In this way, the support plate member 70 and the clamp arm 80 rotate the gear 58 based on the rotation of the gear 52 and the cam groove 59 provided in the cylindrical portion 58a of the gear 58 based on the rotation of the gear 58 and the support plate member 70. By the action of the engagement with the pin 71 fixed to the bent portion 70b, the disc mounting portion 75 and the clamp portion 85 are driven so as to be close to each other, and the gear 52 and the gear 5 are driven.
8, the cam groove 59 provided in the cylindrical portion 58a of the gear 58, the pin 71 fixed to the bent portion 70 of the supporting plate member 70, and the like are the supporting plate member.
A drive mechanism for the 70 and the clamp arm 80 is formed. Then, with the disc D placed on the disc tray 23 placed in the tray pull-out position, part of the disc D left in the disc cartridge 20, the disc mounting portion 75 and the clamp portion 85 are brought close to each other. It is held by and is mounted on the disk mounting portion 75.

The disc D mounted on the disc mounting portion 75 is rotated by the spindle motor 90, and the optical reading means 76 disposed on the support plate member 70 moves within the cutout hole 70a provided on the support plate member 70. The disc D is moved in the radial direction along the two guide shaft members 77 to read the information signal from the disc D.

G-4 Disc Storage Operation (FIG. 4) Next, after the reading of the information signal from the disc D by the optical reading means 76 is completed, the motor 42 is rotated in the reverse direction from the disc loading operation. This allows the worm gear
The bent portion 70 of the support plate member 70 is provided via the 43 and the gears 51 and 52.
Gear 5 with cam groove 59 fitted with pin 71 fixed to b
8 is rotated in the direction opposite to the direction indicated by the arrow b in FIG. 4, whereby the support plate member 70 descends, and the clamp arm 80 rises in conjunction therewith. As a result, the disc mounting portion 75 and the clamp portion 85 are separated from each other, as indicated by the alternate long and short dash line in FIG. 3, and the disc D is disengaged from the disc mounting portion 75, and is again in the tray pull-out position. It is placed on the placed disc tray 23.

When the gear 52 is rotated in the direction opposite to the direction indicated by the arrow a in FIG. 4, the tray pull-out arm 53 has its protruding engagement piece 56 engaged with the notch 26 of the disc tray 23. Further, the guide roller 57 is rotated while being fitted in the lower guide groove portion 61 of the tray position restricting member 60, from the position shown by the solid line in FIG. 4 to the position shown by the alternate long and short dash line. And that is, the disc cartridge
20, the lower guide groove 61 of the tray position regulating member 60
Move to be guided by. Along with that, the disc tray 23, on which the disc D is placed, is rotated and the fourth disc tray 23 is rotated.
From the tray pull-out position shown by the solid line in the drawing to the storage position in the disk cartridge 20 as shown by the dashed-dotted line in FIG. 4, the disk is moved by being guided by the upper guide groove portion 62 of the tray position regulating member 60. It is stored in the cartridge 20.

After that, the motor 42 is stopped and the motor
140) When the movable chassis 40 is started, the elevating drive mechanism for the movable chassis 40 is activated, the movable chassis 40 is lowered, and the disk tray 23 on which the selected disk D is placed is withdrawn from the disk cartridge 20. Is stopped at a position for performing or a standby position close to the fixed chassis 10.

G-5 Operation Effect In this way, in the above-mentioned example, a part of the disk D placed on the disk tray 23 pulled out from the disk cartridge 20 by the tray drawing mechanism remains in the disk cartridge 20. When the tray is pulled out, the disk D is loaded into the disk loading portion 75.
Therefore, the dimension of the disc tray 23 in the pull-out direction can be reduced.

The support plate member 70 and the clamp 70 are clamped by the link mechanism formed by the engagement of the long hole 73a provided in the leg portion 73 of the support plate member 70 and the connecting pin 83 provided in the leg portion 82 of the clamp arm 80. The disc tray which takes the tray pull-out position by rotating the arm 80 in conjunction with each other, thereby bringing the disc mounting portion 75 and the clamp portion 85 close to each other.
The disc D mounted on the disc 23 is mounted on the disc mounting portion 75 by engaging the disc mounting portion 75 and being clamped by the clamp portion 85 at a position slightly raised from the disc tray 23. Therefore, the space in the thickness direction required in the disc cartridge 20 can be made small, and the disc cartridge 20 can be made thin.

H Effect of the Invention As is clear from the above description, in the disc player according to the present invention, the disc cartridge accommodating the disc tray on which the disc is placed is mounted on the cartridge mounting portion and mounted on the disc tray. The mounted disc can be mounted on the disc mounting part by setting the tray to the tray pull-out position where a part of the disc placed on the disc tray remains in the disc cartridge. When the disc mounted on the disc tray that takes a position is mounted on the disc mounting portion, both the disc mounting portion and the clamp portion are supposed to be close to each other, and the clamp portion engages with the disc mounting portion. By moving the disc so that it comes into contact with the disc, Placed on the disc is in the tray, since it is assumed that not only are slightly float up from the disc tray,
The space required in the disk cartridge in the thickness direction is small. Therefore, in the disc player according to the present invention, the disc placed on the disc tray and ejected from the disc cartridge can be reliably mounted in the disc mounting portion, and the dimension of the disc tray in the pulling-out direction from the disc cartridge is small. The size of the disk cartridge can be reduced, and the size of the disk cartridge can be reduced, and the size of the disk cartridge can be reduced in the thickness direction.

[Brief description of drawings]

1 is a perspective view showing an essential part of an example of a disc player according to the present invention, FIG. 2 is a perspective view showing an example of a disc cartridge mounted and used in the example shown in FIG. 1, and FIG. FIG. 4 is a side sectional view for explaining the structure and operation of the support plate member and the clamp arm, and FIG. 4 is a plan view for explaining the operation of the example shown in FIG. In the figure, 10 is a fixed chassis, 20 is a disk cartridge,
23 is a disc tray, 30 is a cartridge mounting portion, 40 is a movable chassis, 52 and 58 are gears, 53 is a tray pulling arm, 59 is a cam groove, 60 is a tray position regulating member, 70 is a supporting plate member, 71 is a pin, Reference numeral 75 is a disc mounting portion, 80 is a clamp arm, and 85 is a clamp portion.

Claims (2)

[Claims] 1. A cartridge mounting portion to which a disc cartridge for accommodating a disc tray on which a disc is mounted is inserted and removed, and a disc tray pulled out from the disc cartridge mounted to the cartridge mounting portion. A tray withdrawal mechanism that allows the ejected disc tray to assume a tray withdrawal position where a part of the disc placed on the disc tray remains in the disc cartridge; and a disc tray with the tray withdrawal position A first movable supporting member for supporting a disc mounting portion with which the disc mounted on the disk engages, and a clamp portion arranged to face the disc mounting portion to clamp the disc engaged with the disc mounting portion. A second movable support member, and both the first and second movable support members Drive the person to bring the disc mounting portion and the clamp portion close to each other,
A drive mechanism for causing the disc mounted on the disc tray in the tray pull-out position to engage the disc mounting portion and be clamped by the clamp portion at a position slightly raised from the disc tray; A disc player that is provided with. 2. A raising / lowering drive mechanism for raising and lowering a first movable support member by a rotation of a motor, and a proximity / separation state between the first movable support member and the second movable support member. In order to do so, a coupling mechanism provided between the first and second movable support members is provided, and by raising the first movable support member by rotation of the motor,
2. The disc player according to claim 1, further comprising a drive for bringing the second movable support member close to the first movable support member.