JPH07210966A - Disk loading device - Google Patents

Abstract

PURPOSE:To prevent the dropping of a disk in an external casing by making it easier to load the disk on a disk tray. CONSTITUTION:A pressing lever 31 positioned on the rear side of a disk 101 is provided on a tray 20 pulled in and polled out from a front panel 37. This pressing lever 31 is, when the disk 101 on the tray 20 is moved to the rear, rotated by the pressing force of a pulling spring 36 and the disk 101 is returned to the front side. When the tray 20 is moved to the front, the pressing lever 31 is rotated by means of the front panel 37 and thus prevented from being pushed out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading device for mounting a disc, which is a recording medium for information signals, such as a so-called optical disc or magneto-optical disc, in a disc player device.

[0002]

2. Description of the Related Art Heretofore, a disk which is a recording medium for information signals, such as a so-called optical disk or a magneto-optical disk, has been proposed. This disc is rotated and operated by a spindle motor in a disc player device, and a light flux condensed by an optical pickup device is applied to a main surface portion thereof to record or reproduce an information signal.

The disc player device has a disc loading device for mounting the disc on the disc player device. The disc loading device has a disc tray which can be retracted and operated through a disc insertion hole formed in a front panel portion of the disc player device while the disc is placed on the disc tray. That is, the disc tray is configured so that the disc can be transported between the front side and the rear side of the front panel.

In the disc player device, on the rear side of the front panel portion, a disc table mounted on the spindle motor so that the disc is mounted, and a disc table mounted on the disc table. An optical pickup device is provided which records or reproduces an information signal on the disk rotated by the spindle motor.

The disc transferred to the rear side of the front panel portion by the disc tray has its central portion placed on the disc table and is disposed above the disc table so as to face the disc table. With the chucking plate and the disc table,
The central portion is clamped. At this time, the disc is
It is separated from the disc tray. Then, the disc is rotated by the spindle motor.

[0006]

In the disc loading apparatus as described above, the disc tray transfers the disc to the rear side of the front panel portion, and then the disc table and the chucking plate are used. The operation of the disk loading device may be stopped, for example, by cutting off the power supply before the disk is clamped. In such a case, if the disc player device is tilted, the disc may fall out of the disc tray into the outer casing of the disc player device.

When the disc is dropped into the outer casing, the disc cannot be taken out of the outer casing by moving the disc tray. Further, at this time, if the disc tray is moved, the disc tray and the disc may be damaged or damaged due to collision or sliding contact between the disc tray and the disc.

Conventionally, a disc is formed by projecting a protrusion on the rear side of the disc tray on which the disc is placed so as to prevent the disc from falling to the rear side of the disc tray. Loading devices have been proposed. However, due to the protrusion, it is not possible to reliably prevent the disc from falling off when the disc player device is inclined rearward at an inclination angle of 90 ° or more, for example.

Further, when the protrusion is provided on the disc tray, the protrusion is formed on the disc tray, especially when the disc tray is made thin. It cannot be moved forward beyond the position where it comes into contact with the rear surface of the. When the protrusion is in contact with the back surface of the front panel, the disk tray forms the entire area on the disk tray on which the disk is placed on the front side of the front panel. I can't. That is, in the disc loading device having the protrusion on the disc tray, when the disc is placed on or removed from the disc tray, a part of the disc is inserted into or removed from the disc insertion hole. It is necessary, and the placing or removing operation is complicated.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and does not complicate the operation of placing or removing the disc on the disc tray.
Further, without impeding the thinning of the disc tray,
An object of the present invention is to provide a disc loading device in which the disc is surely prevented from falling out of the disc tray.

[0011]

In order to solve the above-mentioned problems and achieve the above-mentioned object, a disk loading device according to the present invention is capable of being retracted and operated through a disk insertion hole formed in a front panel section for recording. A disc tray that transports a disc, which is a medium, between the front side and the rear side of the front panel portion, and a disc tray that has an abutting portion for the disc and is attached to the disc tray and placed on the disc tray. A disc pressing member that is movable between a position in which the corresponding contact portion approaches the rear edge portion and a position in which the corresponding contact portion is separated from the edge portion, and this disc pressing member is mounted on the disc tray. And a biasing means for elastically biasing the disc contacting portion to the edge of the placed disc in a direction to bring the contact portion close to the disc contacting member. Is operated to move to the front side protruding from the front panel portion, it comes into contact with the back surface portion of the front panel portion and resists the urging force of the urging means to bring the corresponding contact portion into the disc tray. The disc is placed at a position away from the edge of the placed disc.

Further, according to the present invention, in the disc loading device, the side wall located on one side of the disc placed on the disc tray when the disc tray is retracted to the rear side of the front panel portion. And the disc pressing member corresponds to the other side portion of the edge portion when the abutting portion is brought close to the edge portion on the rear side of the disc placed on the disc tray. Is to be close to each other.

Further, according to the present invention, in each of the disc loading devices described above, the disc pressing member is a pivot lever which is rotatably supported with respect to the disc tray and whose front end side is the abutting portion. The part has an eaves-shaped portion located on the upper side in the vicinity of the edge of the disk placed on the disk tray when the edge is approached.

[0014]

In the disc loading apparatus according to the present invention, the disc holding member movably attached to the disc tray for transferring the disc to the front and back of the front panel portion is such that the disc tray is projected from the front panel portion. When it is operated to move to the front side, it comes into contact with the rear surface of the front panel portion, and the contact portion with respect to the disk is moved away from the disk against the urging force of the urging means. The disc tray can be sufficiently moved and operated without being hindered by the disc pressing member.

In the disc loading device, a side wall portion is provided on one side of the disc placed on the disc tray when the disc tray is retracted to the rear side of the front panel portion. The disc pressing member is such that when the abutting portion is brought close to the rear edge portion of the disc placed on the disc tray, the relevant contact portion is brought close to the other side portion of the edge portion. In this case, the disc is sandwiched between the side wall portion and the corresponding contact portion, and is prevented from falling off the disc tray.

Further, in each of the disc loading devices, the disc pressing member is a pivot lever that is rotatably supported with respect to the disc tray and has a tip end side as the abutting portion, and the corresponding abutting portion is the disc. When the eave-shaped portion is located near the edge of the disc placed on the tray and located near the edge, the disc pressing member is small and easily configured. In addition, the eave-shaped portion can prevent the disc from moving upward.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the disc loading device according to the present invention is constructed on a bottom surface portion 1 forming an outer casing of the disc player device.

The disc player device is a device for recording or reproducing the information signal on or from the disc 101 which is a recording medium for the information signal. The disc 101
1 has a disk-shaped base as shown in FIG. A chucking hole 102 for positioning and holding the disc 101 in the disc player device is formed in the center of the disc-shaped base.

The disc 101 is used as a recording medium for information signals such as a so-called optical disc or a magneto-optical disc, and has a signal recording surface portion on the main surface portion of the base. In the optical disc, this signal recording surface portion is formed to have a fine concavo-convex corresponding to the information signal formed on the substrate and a reflective layer made of a metal thin film such as aluminum. Further, as the signal recording surface portion of the above-mentioned optical disc, there is one formed of a dye material layer in which fine irregularities and holes are formed according to an information signal. Further, in the magneto-optical disk, the signal recording surface portion is formed of a magnetic material layer that is perpendicularly magnetized in the direction according to the information signal.

The recording of the information signal on the disc 101 is performed by irradiating the signal recording surface portion with a light beam such as a condensed laser beam by an optical pickup device. The reproduction of the information signal from the disc 101 is performed by irradiating the signal recording surface portion with the light flux by an optical pickup device and detecting the reflected light flux of the light flux from the signal recording surface portion.

The front portion of the outer casing of the disc player device is a front panel portion 37. This disc player device has a mechanical chassis 2 arranged on the bottom surface 1 inside the outer casing. The mechanical chassis 2 has a rear side portion formed by a pair of support members 4 and 4 provided on the bottom surface portion 1 via a pair of left and right support shafts 3 and 3 protruding toward both sides. , Rotatably supported. That is, as shown by arrows B and C in FIG. 1, the mechanical chassis 2 is rotatable in a direction in which the front side portion is moved in the up and down direction which is the contacting and separating direction with respect to the bottom surface portion 1. . This mechanical chassis 2
It is rotated around each of the support shafts 3, 3 by a moving operation mechanism (not shown).

A spindle motor 10 is attached to the front portion of the mechanical chassis 2. The spindle motor 10 has a drive shaft protruding toward the upper side of the mechanical chassis 2. This spindle motor 10
A disk table 11 is attached to the drive shaft of. The disc table 11 is formed in a substantially disc shape, and the disc 101 is provided at the center of the upper surface.
It has a centering protrusion 41 which is fitted in the chucking hole 102. The centering protrusion 41 is formed to have a substantially truncated cone shape, and is fitted into the chucking hole 102, so that the disc 101 is formed.
Automatic centering, that is, centering. The disc table 11 positions and holds the disc 101 in cooperation with a chucking plate 19 described later, and is rotated by the spindle motor 10 together with the disc 101. The disc table 11 has a magnet for attracting the chucking plate 19.

An optical pickup device 7 is arranged on the rear side of the disc table 11 on the mechanical chassis 2. This optical pickup device 7 has an optical block portion, and in the optical block portion, a light source such as a semiconductor laser, various optical devices for guiding a light beam emitted by the light source, and a light beam for condensing the light beam are provided in the optical block portion. It is configured by incorporating an objective lens that is emitted to the outside and a photodetector such as a phototransistor that detects the reflected light flux of the light flux by the disk 101 via the optical device.

The optical pickup device 7 is movable in an opening 5 formed in the mechanical chassis 2 along a guide shaft 6 attached to the mechanical chassis 2. This optical pickup device 7
The optical axis of the objective lens is parallel to the drive axis of the spindle motor 10 and the exit side of the luminous flux is the upper side. As shown by an arrow A in FIG. It is made movable. The optical block section of the optical pickup device 7 has a rack section 8, and the rack section 8 is used for the mechanical chassis 2
Is engaged with a pinion gear 9 rotatably disposed. The optical pickup device 7 is moved along the guide shaft 6 by rotating the pinion gear 9 by a motor (not shown).
That is, the optical pickup device 7 is configured to be capable of irradiating the entire surface of the signal recording surface of the disc 101, which is held on the disc table 11 and is rotated, with the light flux. There is.

A disc tray 20 constituting the disc loading device according to the present invention is disposed above the mechanical chassis 2. As shown in FIGS. 1 and 4, the disc tray 20 is formed in a substantially flat plate shape, and has a large-diameter disc mounting recess 22 on the upper surface of the front side portion. This large-diameter disk mounting recess 22
Is a circular recess having a diameter corresponding to the diameter of the disc 101, for example, 12 cm, and the disc 101 is fitted and mounted. On the outer peripheral side of the bottom surface of the large-diameter disk mounting recess 22, a disk support projection 23 is formed along the peripheral wall of the large-diameter disk mounting recess 22. That is, when the disc 101 is fitted and mounted in the large-diameter disc mounting concave portion 22, the disc 101 is supported by the disc supporting projection 23 in the vicinity of the outer peripheral edge portion as shown in FIG. .

A small-diameter disk mounting recess 24 is formed concentrically with the large-diameter disk mounting recess 22 at the center of the bottom surface of the large-diameter disk mounting recess 22. The small-diameter disc mounting recess 24 is a circular recess having a diameter corresponding to a diameter of a small-diameter disc (not shown), for example, 8 cm, and the small-diameter disc is fitted and mounted. A disc support projection 25 is formed on the outer peripheral side of the bottom surface of the small-diameter disc mounting recess 24 along the peripheral wall of the small-diameter disc mounting recess 24. That is, when the small-diameter disc is fitted and mounted in the small-diameter disc mounting recess 24, the small-diameter disc is supported by the disc supporting protrusion 25 in the vicinity of the outer peripheral edge portion.

Further, the disc tray 20 is formed with a pair of left and right disc-removing recesses 26, 26 extending from the bottom portion of the small-diameter disc mounting recess 24 to both side surface portions of the disc tray 20. Further, the disc tray 20 includes the small-diameter disc mounting recess 24.
Has a notch portion 27 extending from the central portion to the rear end edge portion. The notch 27 is provided in the disc table 1 described above.
1 and the optical pickup device 7 are formed to have a width that allows the optical pickup device 7 and the optical pickup device 7 to enter toward the upper side of the disc tray 20. A reinforcing beam portion 28 is provided along the upper surface of the disc tray 20 at the rear side portion within the cutout portion 27. The reinforcing beam portion 28 is provided in the cutout portion 2
It is formed across the edges on both sides of 7. At the front edge of the disc tray 20, there is provided a front wall portion 39 which is slightly higher than the thickness of the disc 101 and protrudes upward.

The disc tray 20 has the bottom portion 1
On the other hand, as indicated by arrows E and D in FIG. 1, it is supported so as to be movable in the front-rear direction. This disc tray 2
As shown in FIGS. 4 and 5, 0 can be retracted from the outer casing of the disc player device through a disc insertion hole 38 formed in the front panel portion 37. The disc insertion hole 38 is formed in the disc tray 2 described above.
It has a size and a shape corresponding to the front wall portion 0 of 0.

The disc tray 20 has a rack portion 21 on the side surface, and the rack portion 21 is used to insert the rack portion 21.
The mechanical chassis 2 is operated by a moving operation mechanism (not shown).
2 is operated to move in the front-rear direction while being rotated downward as indicated by arrow C in FIG. When the disc tray 20 is operated to move to the front side, the disc tray 20 shown in FIG.
As described above, the large-diameter disc mounting recess 22 is formed on the front side of the front surface portion of the front panel portion 37. That is, at this time, the entire area of the large-diameter disk mounting recess 22 is located on the outer side of the outer housing. When the tray 20 is moved rearward, as shown in FIG. 4, the front portion of the front wall portion 39 is substantially flush with the front portion of the front panel portion 37. The front wall portion 39 closes the disc insertion hole 38. That is, the disc tray 20 can transfer the disc 101 fitted and mounted in the large-diameter disc mounting recess 22 to the front and rear positions of the front panel portion 37. When the disc tray 20 is moved in the front-rear direction in this manner, the reinforcing beam portion 28 passes above the optical pickup device 7 and the disc table 11.

A bridge member for supporting the chucking plate 19 is arranged on the bottom plate portion 1. This bridge member has a top plate portion 13 and one side girder portion 16 and the other side girder portion 15 that are hung from both sides of the top plate portion 13 in a pair, and are integrally formed. Has been done. This bridge member has a set screw 1 inserted into screw insertion holes 17 and 17 formed at the lower end sides of the girders 16 and 15, respectively.
8 and 18 are a pair of screw holes 1 formed on the bottom plate 1
By being screwed in corresponding to Nos. 2 and 12, in a state of straddling the disc tray 20 and the mechanical chassis 1,
It is attached to the bottom plate portion 1. That is, in this bridge member, the girder portions 16 and 15 are connected to the disc tray 2
0, and the top plate 13 is located above the disc tray 20. Therefore, the one-side girder portion 16 is located on one side of the disc 101 placed on the disc tray 20 when the disc tray 20 is retracted to the rear side of the front panel portion 37. It becomes the side wall.

Then, the chucking plate 19
Is a substantially disk-shaped member, and is attached to the lower end of the shaft of the suspension member 14, as shown in FIG. The hanging member 14 has an enlarged diameter portion on the upper side, and the shaft portion on the lower side is rotatably inserted through a through hole provided in the top plate portion 13. That is, the chucking plate 19 is rotatably supported on the lower surface side of the top plate portion 13. This chucking plate 19
Is located above the disk table 11 and has a lower surface facing the upper surface of the disk table 11. Further, the chucking plate 19 is attached to the magnet of the disc table 11 so that it can be attracted to the magnet.
It is configured to have a magnetic metal part such as iron.

In this disc player device, as shown in FIG. 2, when the disc 101 is placed on the disc tray 20 and the disc tray 20 is moved rearward, as shown in FIG. As shown by the arrow B, when the mechanical chassis 2 is rotated upward, the disc table 11 and the optical pickup device 7 enter into the notch 27, and the disc table 11 is The protrusion 41 is fitted into the chucking hole 102, and the disc 101 is pushed upward to be floated above the disc tray 20 and separated from the disc tray 20. The disc 101 cooperates with the chucking plate 19 to sandwich the disc 101. In this way, the disc 1 is sandwiched by the disc table 11 and the chucking plate 19, that is, chucked.
01 is rotated by the spindle motor 10 so that the optical pickup device 7 can record or reproduce an information signal.

Further, in this disc player device, after the mechanical chassis 2 is rotated to the bottom face 1 side, as shown in FIG. 5, the disc tray 20 is moved to the front side, as shown in FIG. The disc 101 can be placed on and removed from the large-diameter disc placement recess 22.

Then, on the disc tray 20,
A disc pressing lever 31, which serves as a disc pressing member, is attached. This disc holding lever 31
Has a spindle insertion hole 33 in the middle thereof. The disc pressing lever 31 has a support shaft 32 in the support shaft insertion hole 33.
The support shaft 32 is rotatably attached to the disc tray 20 by inserting the support shaft 32 into the support shaft fitting hole 29 provided in the upper surface of the disc tray 20. . The support shaft fitting hole 29 is located on the rear side of the large-diameter disc mounting recess 22 and on the cutout portion 2.
7 is formed on the other side. One end of the disc pressing lever 31 is formed as a contact portion 35, and the contact portion 35 faces the other side portion of the rear edge portion of the large-diameter disc mounting recess 22. This disc holding lever 3
Reference numeral 1 denotes a spring retaining portion 34 provided on the other end side and a spring retaining pin 3 formed near the other side portion of the disc tray 20.
By the tension coil spring 36 stretched between 0 and
As shown by an arrow F in FIGS. 1 and 4, a direction in which the other end side forms the other side of the disc tray 20, that is, the abutting portion 35 enters the large-diameter disc mounting recess 22. It is urged to rotate in the direction to allow it to be positioned at the initial position.

As shown in FIGS. 2 and 3, the abutment portion 35 has an eave-shaped portion with its upper surface side portion protruding forward. This eaves-shaped portion covers the peripheral portion of the large-diameter disc mounting recess 22 as shown in FIGS. 2 to 4 when the disc pressing lever 31 is in the initial position. That is, as shown in FIGS. 2 and 6, this eaves-shaped portion is formed when the disc tray 20 on which the disc 101 is placed is moved to the rear side.
01 is located on the upper side near the peripheral portion. Further, as shown in FIGS. 3 and 6, the eaves-shaped portion does not come into contact with the disc 101 when the disc 101 is chucked on the disc table 11, and the peripheral edge of the disc 101 is prevented. It is located on the upper side near the section.

When the disc tray 20 is moved rearward, the disc player device is tilted or vibrated when the disc tray 20 is moved rearward. 2 and 6, the front wall 39 prevents the forward movement, the one side girder 16 prevents the one side movement, and the like. Movement to the side is blocked by the other side girder portion 15, and movement to the upper side is blocked by the chucking plate 19. At this time, the one-side girder portion 16 and the abutting portion 35 of the disc pressing lever 31 are substantially opposed to each other via the rear side portion of the disc 101, and the rear side of the disc 101 is located. The parts work together and are almost sandwiched. Therefore, the contact portion 35 and the one-side girder portion 16 prevent the disc 101 from moving rearward.

The eaves-shaped portion of the abutting portion 35 is located at the peripheral edge of the disc 101 when the disc 101 is to be pulled out upward from the large-diameter disc mounting recess 22 and to move rearward. It engages with the upper surface portion to prevent the disc 101 from moving. When the disc player device is largely tilted rearward or a strong impact is applied to move the disc 101 rearward by a large inertial force, as shown in FIG.
This disc 101 is configured such that the disc holding lever 31 is pulled by the tension coil spring 3 as shown by an arrow K in FIG.
While being rotated against the urging force of 6, it is moved to the rear side as indicated by arrow J in FIG. At this time, the disc pressing lever 31 is pushed forward by the urging force of the tension coil spring 36 to push the disc 101 back into the large-diameter disc mounting recess 22, as indicated by an arrow L in FIG. The disk 101 is pressed by the portion 35. Therefore, the disc pressing lever 31
Is the disc 10 when the disc player device is no longer tilted or after a shock is applied.
1 is pushed back into the large-diameter disc mounting recess 22.

Then, the disc holding lever 31
When the disc tray 20 is moved to the front side as shown by an arrow D in FIG. 5, the disc insertion hole 38 is the rear face portion of the front panel part 37 as shown in FIG. The contact portion 35 is brought into contact with the upper part of the contact portion 35, and the contact portion 35 is rotated in the direction to the rear side against the biasing force of the tension coil spring 36, as shown by the arrow H in FIG. It An abutting inclined surface portion 40 is formed so as to project at a portion with which the abutting portion 35 abuts when the disc tray 20 is moved forward. The contact inclined surface portion 40 is an inclined surface portion that is inclined in a direction in which the contact portion 35 moves by the rotation of the disc pressing lever 31, and the disc pressing portion is moved along with the movement of the disc tray 20 to the front side. Rotate the lever 31 smoothly.

In the disc tray 20, as shown in FIG. 5, the disc holding lever 31 rotates in the direction in which the abutting portion 35 forms the rear side, so that the large-diameter disc mounting concave portion 22 is entirely retracted. The area is defined as the front panel portion 37
Can be moved to the front side, that is, to the position formed with the outer side of the outer casing. Therefore, in this disc loading device, it is easy to place and remove the disc 101 from the large-diameter disc mounting recess 22.

As shown in FIG. 8, the disc loading device according to the present invention may be constructed by disposing the disc pressing levers 31 in a pair of left and right. These disc holding levers 31, 31 have the same structure as the disc holding lever 31 in the above-mentioned embodiment, respectively, and have a shape and a mounting position which are symmetrical with respect to the center line of the disc tray 20. . In this way, the pair of disc pressing levers 31, 3
In the disc loading apparatus having the above-mentioned No. 1, the disc pressing levers 31, 31 and the front wall portion 39 are made to cooperate with each other without providing the respective girder portions 16 and 15, so that the disc 101 of the disc tray 20 from the disc tray 20 is removed. It can be prevented from falling off to the side. When a pair of left and right disc pressing levers 31 and 31 are provided in this way, the abutting inclined surface portions 40 are also provided in a pair of left and right corresponding to the disc pressing levers 31 and 31.

In this case as well, it is easy to place and remove the disc 101 on the disc tray 20, and at the same time, the disc 10 from the disc tray 20 is removed.
1 can be prevented from falling off.

Further, in the disc loading apparatus according to the present invention, the disc pressing member is not limited to the disc pressing lever 31 rotatably supported as shown in each of the above-mentioned embodiments, but is placed on the disc tray 20. It may be a slider slidably supported. In this case, the slider is slidably arranged in the front-rear direction on the upper surface of the disc tray 20 and behind the large-diameter disc mounting recess 22, and the front end side portion serves as the contact portion. Done. The slider is urged to move in the frontward direction by urging means such as a coil spring. When the disc tray 20 is moved to the front side, the slider comes into contact with the back surface of the front panel portion 37 and is moved to the rear side with respect to the disc tray 20. The eaves-shaped portion may be provided at the contact portion of the slider.

[0043]

As described above, in the disc loading apparatus according to the present invention, the disc holding member movably attached to the disc tray for transporting the disc forward and backward of the front panel is When operated to move to the front side protruding from the front panel portion, it comes into contact with the back surface portion of the front panel portion and separates the contact portion with the disc from the disc against the biasing force of the biasing means. It is made to the position to let.

Therefore, in this disc loading device, the disc tray can be sufficiently moved and operated without being obstructed by the disc pressing member, and the disc can be placed on and removed from the disc tray. The operation can be facilitated.

In the disc loading device, a side wall portion is provided on one side of the disc placed on the disc tray when the disc tray is retracted into the rear side of the front panel portion. The disc pressing member is such that when the abutting portion is brought close to the rear edge portion of the disc placed on the disc tray, the relevant contact portion is brought close to the other side portion of the edge portion. In this case, the disc can be sandwiched between the side wall portion and the contact portion, and the disc can be reliably prevented from falling off the disc tray.

Further, in each of the disc loading devices, when the disc holding member is a turning lever which is rotatably supported with respect to the disc tray and whose front end side is the abutting portion, the disc holding member is The member is small and can be easily constructed. Further, when the abutting portion of the disc pressing member has an eaves-like portion located on the upper side in the vicinity of the edge of the disc placed on the disc tray, when it is brought close to the edge, The disc pressing member can prevent the disc from moving upward due to the eaves-shaped portion, and can reliably prevent the disc from falling off the disc tray.

That is, according to the present invention, the disc is removed from the disc tray without complicating the operation of placing or removing the disc from the disc tray and without hindering the thinning of the disc tray. Therefore, it is possible to provide a disc loading device that reliably prevents

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the configuration of a disc loading device according to the present invention.

FIG. 2 is a vertical cross-sectional view showing the configuration of the disc loading device as seen from the side surface side.

FIG. 3 is a vertical cross-sectional view showing a state where a disc is chucked in the disc loading device as seen from the side surface side.

FIG. 4 is a plan view showing the structure of the disc loading device with a part thereof cut away.

FIG. 5 is a partially cutaway plan view showing a state where the disc tray is moved forward in the disc loading device.

FIG. 6 is a partially cutaway plan view showing a state where the disc is transferred to the rear side of the front panel portion in the disc loading device.

FIG. 7 is a partially cutaway plan view showing a state in which the disc transferred to the rear side of the front panel portion is moved to the rear side in the disc loading device.

FIG. 8 is a plan view showing another example of the configuration of the disc loading device with a part thereof cut away.

[Explanation of symbols]

 16 one side girder portion 20 disc tray 31 disc holding lever 35 contact portion 36 tension coil spring 37 front panel portion 38 disc insertion hole 40 contact inclined surface portion 101 disc

Claims (3)

[Claims] 1. A disk, which is a recording medium, is mounted and can be operated to be retracted and retracted through a disk insertion hole formed in a front panel portion, and the disk extends over the front side and the rear side of the front panel section. A disc tray to be transferred and a contact portion for the disc, and a position where the contact portion is attached to the disc tray and is brought close to the rear edge of the disc placed on the disc tray. And a disc pressing member that is movable between the edge portion and a position for separating the contact portion from the edge portion, and the disc pressing member on the edge portion of the disc placed on the disc tray. And an urging means for elastically urging the disc tray in a direction in which the disc tray is brought closer to the disc pressing member. When made, it abuts against the back surface of the front panel portion and separates the abutting portion from the edge portion of the disc placed on the disc tray against the biasing force of the biasing means. Disc loading device which is made in position. 2. The disc tray has a side wall portion located on one side of the disc placed on the disc tray when the disc tray is retracted to the rear side of the front panel portion. 2. The disc according to claim 1, wherein when the contact portion is brought close to an edge portion on the rear side of the disc placed on the disc tray, the contact portion is brought close to the other side portion of the edge portion. Loading device. 3. The disc pressing member is a pivot lever which is rotatably supported with respect to the disc tray and has a tip side as an abutting portion, the abutting portion being placed on the disc tray. 3. The disk loading device according to claim 1, further comprising an eaves-shaped portion located on the upper side near the edge of the disk when the disk is brought close to the edge.