JP2002298481A - Disk loading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk loading device that can prevent a disk face from being damaged. SOLUTION: A disk DL is carried while being clamped between an opposed face 44 of a guide 41 and a loading roller 42. Guide projections 45, 46, 47 are provided to both sides of the opposed face 44 of the guide 41 in a carrying direction of the loading roller 42 and to both sides thereof around a disk carrying center along the disk carrying direction. The guide projections 45, 46, 47 are projected from the disk carrying center position of the loading roller 42 nearly in the radial direction, each of the guide projections 45, 46, 47 is highly projected at an outer edge at the both sides than the disk carrying center and the circumferential part of the disk DL is pressed into contact with the guide projections 45, 46, 47. The circumferential part of the disk DL that is carried while being clamped between the guide 41 and the loading roller 42 is pressed into contact with the guide projections 45, 46, 47 to prevent the disk face from being damaged.

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 holding a disc between a guide member and a loading roller and transporting the disc.

[0002]

2. Description of the Related Art Conventionally, for example, a disk player such as a compact disk for music reproduction has been disclosed in Japanese Patent Laid-Open No. 3-29.
As described in Japanese Patent Application Laid-Open No. 6962, a disk loading device for nipping and transporting a disk between a guide body (hereinafter referred to as a top guide) and a loading roller is provided.

The top guide is provided with a horizontal surface for guiding a large-diameter disk such as a 12 cm disk, and an inclined surface for guiding a small-diameter disk such as an 8 cm disk.

When loading a small-diameter disc, the small-diameter disc is guided by the inclined surface of the top guide, and the insertion angle is conveyed upward with respect to the substantially horizontal direction.
The center of the small-diameter disk is positioned on the center axis of the turntable by contacting the small-diameter disk stopper pin provided on the chuck arm corresponding to the inclination angle of the top guide.

During loading of a large-diameter disk, the large-diameter disk is guided on a horizontal surface of a top guide and conveyed substantially horizontally, thereby avoiding contact with a small-diameter disk stopper pin provided on a chuck arm. The center of the large-diameter disk is positioned on the center axis of the turntable by contacting the large-diameter disk stopper pin provided near the center of rotation of the chuck arm.

[0006]

However, in the conventional configuration, since the disk is guided by the horizontal surface and the inclined surface of the top guide, the top guide and the disk slide in a state of surface contact, and the disk surface is damaged. There is a problem that tends to stick. In particular, when loading is performed with greetings or the like adhered to the disk surface, the greeting is caught between the top guide and the disk surface, which is likely to cause scratches on the disk surface.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a disk loading device capable of preventing a disk surface from being damaged.

[0008]

According to a first aspect of the present invention, there is provided a disk loading apparatus comprising: a guide body having an opposing surface on which the disk is opposed; Loading roller, provided on the opposing surface of the guide body, on both sides of the loading roller in the disk transport direction and on both sides about the disk transport center along the disk transport direction, approximately from the disk transport center position of the loading roller. A projection protruding in the radial direction and having a higher protruding height on the outer ends on both sides than the center of the disk transport, and having a guide protruding portion with which the peripheral edge of the disk abuts.

On the opposite surface of the guide body, on both sides in the disk transport direction of the loading roller and on both sides about the disk transport center along the disk transport direction, substantially radiate from the disk transport center position of the loading roller. In this case, a guide projection is provided which is protruded in the opposite direction and has a higher projecting height on both outer ends than the disc transport center side. The disk is conveyed while its peripheral edge is in contact with the guide projection, so that the disk surface does not come into contact with the guide body, and the disk surface is reliably prevented from being damaged.

According to a second aspect of the present invention, there is provided the disk loading device according to the first aspect, wherein the guide projections include guide projections for small-diameter disks arranged on both sides intersecting the disk transport direction. A guide projection for the large-diameter disk is provided outside the guide projection for the small-diameter disk, and the outer protrusion of the guide projection for the large-diameter disk is larger than the guide projection for the small-diameter disk. The height is provided high.

The guide projections for the small-diameter discs are disposed on both sides intersecting the disc transport direction, and the large-diameter discs disposed outside the guide projections for the small-diameter discs. The guide protrusions for the large-diameter disk are provided higher than the guide protrusions for the small-diameter disk, so that the small-diameter disk and the large-diameter disk are provided. In both cases, the respective peripheral edges abut against the corresponding guide projections, and are conveyed without damaging the disk surface.

According to a third aspect of the present invention, in the disk loading device of the first or second aspect, the width between the outer ends of the guide projections on both sides is provided to be larger than the diameter of the disk. .

The width between the outer ends of the guide projections on both sides is provided to be larger than the diameter of the disk, so that
The portion of the disk that comes into contact with the guide projection is only the peripheral portion of the disk, and the disk is conveyed without damaging the disk surface.

According to a fourth aspect of the present invention, there is provided a disk loading device according to any one of the first to third aspects, wherein the guide projection has a substantially triangular cross section and a corner portion with which a peripheral portion of the disk abuts. Is what it is.

The guide projection has a substantially triangular cross section.
Since the peripheral edge of the disk has a corner portion that comes into contact, the contact between the guide projection and the peripheral edge of the disk becomes a point contact, and the disk is smoothly transported.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The discs handled by the disc player to which the disc loading apparatus of the present embodiment is applied include, for example, a compact disc for music reproduction, a large-diameter disc DL which is an 12 cm album type, and a single disc of 8 cm. A description will be given taking a small diameter disc DS as an example.

In FIG. 1, reference numeral 11 denotes a chassis as a main body, and an insertion slot for inserting and removing a disk from the front of the chassis 11.
12 are formed. Inside the chassis 11, a pick base 14 is supported in a floating state by dampers 13, 13 on both sides and a damper 13 on the front side.

The pick base 14 is formed in a substantially rectangular, substantially flat plate shape. Support pieces 15 and 16 are bent upward at both rear portions and both front portions, and a support piece 17 is bent downward at the center of the front side. The support pieces 15 at the rear portions on both sides and the support piece 17 at the front center are connected to and supported by the respective dampers 13.

The pick base 14 is provided with a disk rotation drive mechanism 21, a pickup mechanism (not shown), a disk chuck mechanism 22, a disk loading mechanism 23, and the like.

The disk rotation drive mechanism 21 is a pick base
Turntable rotatably placed at the playback position on 14
26, a spindle motor 27 attached to the lower surface of the pick base 14 for driving the turntable 26 to rotate.

A pickup mechanism (not shown) is provided on the pick base 14 and has a pickup for optically reading information stored on the disc and a pickup moving mechanism for moving the pickup in the radial direction of the disc. are doing.

The disc chuck mechanism 22 has a chuck arm 31 disposed on the rear side of the pick base 14, and a turntable is provided at the center of the front end of the chuck arm 31.
A clamper 32 for chucking the disc is rotatably mounted between the clamper 26 and the clamper 26. At the rear of both sides of the chuck arm 31, mounting pieces 33 are bent downward, and the mounting pieces 33 at both sides are supported on the support pieces 15 at the rear of both sides of the pick base 14 by the support shaft 34.
When chucking, the front end side of the chuck arm 31 is swung downward to chuck the disk, and when chucking is released, the front end side of the chuck arm 31 is swung upward to swing the disk. Chucking is released.

At both sides near the front end of the chuck arm 31, stoppers 35 for small-diameter discs that stop the small-diameter disc DS at the reproduction position when the small-diameter disc DS is loaded by the disc loading mechanism 23 are attached. ing. In addition, a large-diameter disk DL is provided on both sides of the rear portion of the chuck arm 31 with the disk loading mechanism 23.
Large diameter disc DL when loaded by
A stopper 36 for a large-diameter disc for stopping the disc at the reproduction position is attached. The large-diameter disk DL is moved by the disk loading mechanism 23 to the small-diameter disk stopper 35.
And is loaded to the playback position after passing underneath.

The disc loading mechanism 23 is disposed between the top guide 41 as a guide body disposed above the insertion slot 12 and attached to the chassis 11 and the top guide 41 disposed below the insertion slot 12. And a loading roller 42 for transporting the disk in the disk transport direction (loading direction or unloading direction) while holding the disk.

As shown in FIGS. 1 and 5, the top guide 41 is made of a synthetic resin, and has a plurality of attachment pieces 43 attached to the top plate of the chassis 11 at the peripheral edge.

On the lower surface of the top guide 41, a facing surface 44 facing the disk is formed. The opposing surface 44 is located on both sides of the disk transport center (disk transport center line) x along the disk transport direction of the loading roller 42 and corresponds to the insertion opening 12 side of the loading roller 42 in the disk transport direction. The guide projections 45 on both sides common to the small-diameter disk and the large-diameter disk are formed so as to protrude, and both sides are located at positions corresponding to the turntable 26 side of the loading roller 42 in the disk conveyance direction. Guide projections 46 for the small-diameter disc DS, and a large-diameter disc outside the guide projections 46 for the small-diameter disc DS.
A guide projection 47 for DL is formed so as to protrude.

The guide projections 45, 46, 47 have a substantially triangular cross section and have corners 45a, 46 with which the peripheral edge of the disc abuts.
a, 47a, protruding substantially radially with respect to the position x of the disk transport center of the loading roller 42, and projecting at a higher height on both outer ends than the side x of the disk transport center. Moreover, the outer protrusion of the guide protrusion 47 for the large-diameter disk DL is formed higher than the guide protrusion 46 for the small-diameter disk DS. Further, the width between the outer ends of the guide protrusions 46 for the small-diameter disks DS on both sides is provided to be larger than the diameter of the small-diameter disk DS, and the width between the outer ends of the guide protrusions 45 on both sides and the large-diameter disks on both sides are provided. Guide projection for DL
The width between the outer ends of the 47 is larger than the diameter of the large-diameter disk DL.

The opposing surface 44 of the top guide 41 is located at a position corresponding to both sides of the loading roller 42 in the axial direction intersecting with the disk transport direction, and includes the guide protrusion 45 and the guide protrusion 4.
A recess 48 for preventing interference with the loading roller 42 is formed between the recesses 6 and 47.

The loading roller 42 is, for example, a rubber roller, and has a shaft 49 penetrated therethrough. A gear 50 attached to one end of the shaft 49 is transmitted with a rotational driving force from a motor of a drive mechanism (not shown) to load the gear in the loading direction. Rotated in unloading direction. The loading roller 42 is divided into two parts in the axial direction, and has a smaller diameter at the center and a larger diameter at the outer end than at the center.

The loading roller 42 is supported by an up lever 51. The up lever 51 is formed in a horizontally long shape, and mounting pieces 52 are bent on both sides thereof, and a shaft 49 of the loading roller 42 is provided between the mounting pieces 52 on both sides.
Are rotatably supported, and the mounting pieces 52 on both sides are pick bases.
14 is rotatably supported by support shafts 53 on support pieces 16 at the front portions on both sides. Then, the loading lever 42 is lowered by the up lever 51 during chucking and moved to a position separated from the disk, and when the chucking is released, the loading roller 42 is raised and moved to a contact position with the disk.

The chuck arm 31 and the up lever 51 are operated in accordance with the slide position of a slider (not shown) which is slid by receiving a drive from a drive mechanism in association with the loading operation of the disk. In other words, when chucking a disc loaded at the playback position,
When the slider moves from the chucking release position to the chucking position, the up lever 51 is rotated in the lowering direction of the loading roller 42 so that the loading roller 42
Is separated from the disk, the chuck arm 31 is pivoted downward, the disk is pressed by the turntable 26 by the clamper 32 and chucked, and when the chucking to unload the disk is released, the slider is moved from the chucking position. By moving to the chucking release position, the chuck arm 31 is pivoted upward to release the chucking of the disc, and the up lever 51 is pivoted in the ascending direction of the loading roller 42 to load the loading roller.
42 contacts the disk.

As shown in FIG. 6, a disc position restricting means 61 for positioning a disc inserted to one side of the left and right sides of the insertion port 12 at the center thereof is provided in the insertion port 12 of the chassis 11. Have been. This disc position regulating means 61
Has a pair of left and right disk arms 62, 63 arranged on the back side of the top plate of the chassis 11, and each disk arm 62, 63
Are supported rotatably about the support shafts 62a and 63a, and pin-shaped disk restricting portions 64 and 65 are provided at the ends facing the insertion opening 12 so as to be in contact with the peripheral edge of the disk.

A spring 66 for urging in a closing direction is stretched between the disk arms 62 and 63, a guide groove 67 is formed in the right disk arm 63, and a left disk arm 63 is formed.
A guide pin 68 that engages with the guide groove 67 is provided at 62. On one edge of the guide groove 67, as shown in FIG.
For example, when the small-diameter disk DS is inserted to the right of the center of the insertion slot 12 and the right disk arm 63 is rotated, the guide pin 68 is engaged and the right disk arm 63 is engaged.
A locking concave portion 69 for restricting the further rotation of is formed. Similarly, at the other edge of the guide groove 67, as shown in FIG. 8, for example, a small-diameter disk DS is inserted at a position closer to the left from the center of the insertion slot 12, and the left disk arm 62 is rotated. In this case, a locking recess 70 is formed to engage the guide pin 68 and restrict the further rotation of the left disk arm 62. When the disk (both the small-diameter disk DS and the large-diameter disk DL) is inserted into the center of the insertion slot 12 and the disk arms 62 and 63 are both expanded and moved almost simultaneously, the guide pins 68 Of the disc arms 62, 63 according to the diameter of the disc.

Next, the operation of the disc player will be described.

First, the loading operation of the small-diameter disc DS will be described with reference to FIGS.

By inserting the small-diameter disk DS into the insertion slot 12, the small-diameter disk DS is sandwiched between the top guide 41 and the loading roller 42, and rotated in the loading direction by a motor of a drive mechanism (not shown). Is loaded into the chassis 11 by the loading roller 42.

Small-diameter disk pulled into chassis 11
The DS is conveyed while being in contact with the guide projections 45 on both sides and the guide projections 46 for small-diameter disks on both sides. The guide projections 45 and 46 on both sides protrude substantially radially from the position x of the disk transport center of the loading roller 42, and the outer ends on both sides protrude higher than the x side of the disk transport center. , A small-diameter disk with a substantially triangular section
Are in contact with the corner portions 45a, 46a, so that the peripheral portion, that is, the edge portion of the small-diameter disk DS contacts the guide projections 45, 46 on both sides by point contact. Therefore, small diameter disc
The four points on the periphery of the DS are conveyed in the loading direction by the loading roller 42 while contacting the guide projections 45 and 46 on both sides. Therefore, the disk surface of the small-diameter disk DS does not come into contact with the guide projections 45 and 46, thereby preventing the disk surface from being damaged.

Further, the width between the outer ends of the guide projections 45 and 46 on both sides is provided to be larger than the diameter of the small-diameter disk DS. It can be formed only on the periphery of the small disk DS and can be transported without damaging the disk surface.

Since the guide projections 46 for the small-diameter disks on both sides are low on the inner end side, which is the introduction side close to the loading roller 42, and high on the outer end side, the small-diameter disks DS drawn into the chassis 11 gradually become smaller. Is prevented from contacting the clamper 32 by being pushed down below the chassis 11, and the small-diameter disk DS drawn into the chassis 11 abuts against the small-diameter disk stopper 35, and the center axis of the turntable 26 It is positioned upward.

The unloading operation of the small-diameter disk DS is performed in the same manner as the operation reverse to the loading operation.

Next, a case where the small-diameter disc DS is inserted rightward or leftward in the insertion slot 12 in FIG. 7 or FIG. 8 will be described.

As shown in FIG. 7A, when the small-diameter disk DS is inserted to the right, the small-diameter disk DS comes into contact with the disk regulating portion 65 of the right disk arm 63, and the disk arm 63 is moved. It rotates counterclockwise about the support shaft 63a. At this time, the guide pin 68 of the left disk arm 62
Slides in the guide groove 67 of the right disk arm 63, and the disk arms on both sides up to the width where the small-diameter disk DS can be inserted.
7B, the guide pin 68 of the left disk arm 62 fits into the locking recess 69 of the guide groove 67, as shown in FIG. 7B. Therefore, the disk arms 62 and 63 on both sides are restricted from rotating by the insertion width of the small-diameter disk DS, and as shown in FIG. The movement in the insertion direction is restricted by the restricting portion 65 and moves toward the center. FIG.
As shown in (d), when half or more of the small-diameter disc DS is inserted, the disc arms 62 and 63 on both sides are rotated by the spring 66 in the direction in which the disc regulating portions 64 and 65 are closed.

As shown in FIG. 8A, when the small-diameter disk DS is inserted to the left side, the small-diameter disk DS is inserted.
Abuts against the disc regulating portion 64 of the left disc arm 62, and the disc arm 62 rotates clockwise about the support shaft 62a. At this time, the guide pins 68 of the left disk arm 62 slide in the guide grooves 67 of the right disk arm 63, and the disk arms 62, 63 on both sides rotate in conjunction with each other until the small diameter disk DS can be inserted. When moved, the guide pin 68 of the left disk arm 62 fits into the locking recess 70 of the guide groove 67 as shown in FIG. 8B. Therefore, the disk arms 62 and 63 on both sides are restricted from rotating by the insertion width of the small-diameter disk DS, and as shown in FIG. Regulatory department
The movement in the insertion direction is restricted by 64, and it moves toward the center. As shown in FIG. 8D, when half or more of the small-diameter disk DS is inserted, the disk arms 62 and 63 on both sides are rotated by the spring 66 in a direction in which the disk control portions 64 and 65 are closed.

Therefore, even if the small-diameter disc DS is inserted into the insertion slot 12 in a state shifted to the left or right, the insertion position can be regulated at the center of the insertion slot 12 by the disc position regulating means 61.
The peripheral portion of the small-diameter disk DS can always be brought into contact with the guide projections 45 and 46 on both sides.

Next, referring to FIGS. 1 and 2, a description will be given of a state in which the large-diameter disk DL is inserted.

By inserting the large-diameter disk DL into the insertion slot 12, the large-diameter disk DL is sandwiched between the top guide 41 and the loading roller 42, and rotated in the loading direction by a motor of a drive mechanism (not shown). Is loaded into the chassis 11 by the loading roller 42.

Large-diameter disk pulled into chassis 11
The DL is conveyed while being in contact with the guide projections 45 on both sides and the guide projections 47 for large-diameter disks on both sides. The guide projections 45 and 47 on both sides protrude substantially radially from the position x of the disk transport center of the loading roller 42, and the outer ends on both sides protrude higher than the disk transport center x side. Large cross-section DL with triangular cross section
Are contacted with the corners 45a and 47a, so that the peripheral portion, that is, the edge portion of the large-diameter disk DL contacts the guide projections 45 and 47 on both sides by point contact. Further, since the outer protrusion of the guide protrusion 47 for the large-diameter disk DL is set higher than the guide protrusion 46 for the small-diameter disk DS, the large-diameter disk DL is inserted when the large-diameter disk DL is inserted. After the peripheral portion of the DL abuts on the introduction side of the guide protrusion 46 for the small-diameter disk, it moves to the guide protrusion 47 for the large-diameter disk, and no longer contacts the guide protrusion 46 for the small-diameter disk. Therefore, the disk surface of the large-diameter disk DL does not come into contact with the guide projections 45, 46, and 47, thereby preventing the disk surface from being damaged.

Further, since the width between the outer ends of the guide projections 45 and 47 on both sides is provided to be larger than the diameter of the large-diameter disk DL, the portion of the large-diameter disk DL that contacts the guide projections 45 and 47 is reduced in diameter. It can be formed only on the periphery of the large disk DL and can be transported without damaging the disk surface.

Since the guide projections 47 for the large-diameter disks on both sides are low on the inner end side, which is the introduction side close to the loading roller 42, and high on the outer end side, the large-diameter disk DL drawn into the chassis 11 gradually increases. In addition to avoiding contact with the clamper 32 due to being pushed down below the chassis 11, avoiding contact with the small-diameter disk stopper 35, the large-diameter disk DL pulled into the chassis 11 is It comes into contact with the large-diameter disk stopper 36 and is positioned above the central axis of the turntable 26.

The unloading operation of the large-diameter disk DL is performed in the same manner by the operation reverse to the loading operation.

Further, as shown in FIG.
In order to avoid the disc position regulating means 61 when inserting the disc, the guide pin 68 of the disc arm 62 on the left side
Even if it fits in the locking recesses 69, 70 of the guide groove 67 of the 63, the larger diameter disk DL can be further restricted by the disk regulating portions 64, 64 on both sides.
Since the guide 65 is rotated in the opening direction, the engagement between the guide pin 68 and the locking recesses 69 and 70 of the guide groove 67 is released and insertion becomes possible.

In this way, the small-diameter disk DS or the large-diameter disk DL is positioned above the center axis of the turntable 26, and is detected by a mechanism (not shown).
The rotation of the chuck arm 31 is started, the clamper 32 is pressed against the turntable 26 to chuck the small-diameter disk DS or the large-diameter disk DL, and at the same time, the loading roller 42 is moved to the small-diameter disk DS or the large-diameter disk DL. To make the small-diameter disk DS or the large-diameter disk DL reproducible.

The discs handled by the disc loading apparatus are not limited to compact discs dedicated to reproduction of music, but can be applied to optical discs such as DVDs, magneto-optical discs such as MDs, and flexible magnetic discs. An effect can be obtained. The driving device is
The present invention can be applied not only to a disc player but also to a disc recording / reproducing apparatus capable of recording on a disc, and the same operation and effect can be obtained.

[0055]

According to the disk loading device of the present invention, both sides of the guide body opposite to the loading roller in the disk transport direction and centered on the disk transport center along the disk transport direction. In addition, a guide projection is provided, which protrudes substantially radially from the disk transport center position of the loading roller and has a higher projecting height on the outer ends on both sides than the disk transport center side. The disc sandwiched and conveyed between the discs is conveyed while the peripheral edge of the disc is in contact with the guide projection, so that the disc surface does not contact the guide body and the disc surface can be reliably prevented from being damaged. .

According to the disk loading device of the second aspect, in addition to the effect of the disk loading device of the first aspect, in addition to the effects of the disk loading device, the guide projections are for small-diameter disks arranged on both sides intersecting the disk transport direction. Guide protrusions,
It has a guide protrusion for a large-diameter disk disposed outside of the guide protrusion for a small-diameter disk, and is located on the outer end side of the guide protrusion for a large-diameter disk than the guide protrusion for a small-diameter disk. Since the protruding height is set high, both the small-diameter disk and the large-diameter disk have their peripheral edges abutting on the corresponding guide projections, and can be transported without damaging the disk surface.

According to the disk loading device of the third aspect, in addition to the effect of the disk loading device of the first or second aspect, the width between the outer ends of the guide projections on both sides is provided to be larger than the diameter of the disk. Therefore, the portion of the disk that comes into contact with the guide protrusion can be formed only at the peripheral edge of the disk, and the disk can be transported without being damaged.

According to the disk loading device of the fourth aspect, in addition to the effect of the disk loading device of any one of the first to third aspects, the guide projection has a substantially triangular cross section and the peripheral edge of the disk abuts. Because of the corner portions, the contact between the guide projection and the peripheral edge of the disk becomes a point contact, and the disk can be transported smoothly.

[Brief description of the drawings]

FIGS. 1A and 1B show a state in which a large-diameter disk is being conveyed in a disk player to which a disk loading device according to an embodiment of the present invention is applied, wherein FIG. 1A is a plan view and FIG.

2A and 2B show a positioning state of a large-diameter disk in the disk player, wherein FIG. 2A is a plan view and FIG. 2B is a side view.

FIGS. 3A and 3B show a state in which a small-diameter disk is being conveyed in the disk player, wherein FIG. 3A is a plan view and FIG. 3B is a side view.

4A and 4B show a positioning state of a small-diameter disk in the disk player, wherein FIG. 4A is a plan view and FIG. 4B is a side view.

FIG. 5 is a perspective view of a guide body of the disk player.

FIG. 6 is an explanatory diagram for explaining the loading operation of the large-diameter disc by the disc player in the order of (a) to (d).

FIG. 7 is an explanatory diagram for explaining a loading operation when a small-diameter disc of the disc player is inserted to the right side in the order of (a) to (d).

FIG. 8 is an explanatory diagram for explaining a loading operation when a small-diameter disk of the disk player is inserted to the left side in the order of (a) to (d).

[Explanation of symbols]

 41 Top guide as a guide body 42 Loading roller 44 Opposite surface 45, 46, 47 Guide protrusion 45a, 46a, 47a Corner portion Large diameter disk as DL disk Small diameter disk as DS disk

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D046 AA16 CB03 CB09 CD03 EA04 EA06 HA08

Claims (4)

[Claims] A guide body having a facing surface with which the disc faces, a loading roller for nipping and transporting the disc between the facing surface of the guide body, and a loading roller provided on the facing surface of the guide body; On both sides of the loading roller in the disk transport direction and on both sides around the disk transport center along the disk transport direction, the loading rollers protrude substantially radially from the disk transport center position and both sides from the disk transport center side. A disc loading device, comprising: a guide projection having a high protruding height on an outer end side, and a peripheral edge of the disc abutting thereon. 2. A guide projection for a small-diameter disk, which is disposed on both sides intersecting the disk transport direction,
It has a guide protrusion for a large-diameter disk disposed outside of the guide protrusion for a small-diameter disk, and is located on the outer end side of the guide protrusion for a large-diameter disk than the guide protrusion for a small-diameter disk. 2. The disc loading device according to claim 1, wherein the protruding height is high. 3. The disk loading device according to claim 1, wherein the width between the outer ends of the guide projections on both sides is set to be larger than the diameter of the disk. 4. The disk loading device according to claim 1, wherein the guide projection has a substantially triangular cross section and has a corner with which the peripheral edge of the disk abuts.