JPH08147841A - Disc loading device - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide a loading mechanism capable of loading a cartridge and a bare disc from a single insertion port without using a tray or the like. A transfer mechanism capable of transferring a cartridge and a bare disk, having first holding portions 18 that elastically engage with engaging recesses 10 on both sides of a disk cartridge 9 inserted into an insertion port 4, Holding means 12 having a second holding portion 19 that elastically engages the peripheral edge of the disk 12, and the disk 12 'and the disk 12' in the disk cartridge 9.
Is provided with a transfer means 3 for transferring the holding means 2 so as to move between the insertion port 4 and the turntable 5.

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 an optical disc or the like.

[0002]

2. Description of the Related Art In recent years, optical discs are characterized by a high recording density, a long medium life because recording and reproduction can be performed in a non-contact manner, and random access is much faster than a medium such as a tape. It is used for many purposes such as a CD as a reproduction-only machine, an image file, a data file, and a document file as a recording / reproducing machine.

In such an apparatus, a conventional example of a disk loading apparatus for mounting and transferring a disk is described below.
This is shown in FIGS. 14 and 15. Reference numeral 53 is a main chassis, which is a disc motor 56, a turntable 58 attached to this shaft, a center cone 58a on the turntable 58 which engages with a central hole 45a of a disc 45 which is a recording disc, and a guide shaft 55. A head 43 to which a coil 43a for a linear motor is attached, which is guided so as to be slidable in the directions Y1 and Y2, and a magnetic yoke 54 for a linear motor are attached. A hole 53b for a fulcrum of rotation is provided at one end 53a of the main chassis 53.
Is provided, and the rotation support shaft 51 is passed through the hole 53b. Similarly, one end 47a of the clamp arm 47 is provided with a hole 47b for a rotation fulcrum, and the rotation support shaft 51 is also passed through the hole 47b. The rotation support shaft 51 has a projection 52 in the housing 42. It is fixed to. The tray 41 has a rack 41a formed on the back surface and an output gear of a loading motor 57 to which a reduction gear head is attached meshes with each other to drive the tray 41 to move in parallel in the directions Y1 and Y2. Is attached to. Also, the tray 41
A dish-shaped recess 46 on which a disc 45 can be placed and held
Are formed. Further, a cam 50 is engaged with the rear portion of the main chassis 53 and the clamp arm 47. The cam 50 is driven by the geared motor 49. Depending on the rotational position of the cam 50, the main chassis 53 and the clamp arm 47 are configured to rotate around the pivot shaft 51 and move toward and away from each other. 40 is an insertion port, 41b
Is an opening, and 48 is a clamper. Loading motor 5
7. The operation of the geared motor 49 is performed by normal microcomputer control or the like. The position of the cam 50 or the tray 41 driven by each motor is detected by an ordinary micro switch or the like. These details are not shown,
The description is also omitted.

FIGS. 15 (a), 15 (b) and 15 (c) show the operation of this conventional disk loading apparatus. That is, when the disc 45 is used in the disc recording / reproducing apparatus, when the eject / load switch 60 (FIG. 14) is pressed, the tray 41 is moved in the Y2 direction by the driving of the loading motor 57 under the control of the microcomputer, and the outside of the housing 42 is driven. Then, the state shown in FIG. At this time, the clamp arm 47 and the main chassis 53 are vertically separated from each other about the pivot shaft 51. Disc 4 in this state
When 5 is placed in the recess 46 of the tray 41 and the eject / load switch 60 is pressed, the tray 41 is transferred in parallel through the insertion opening 40 into the housing 42 by the driving of the loading motor 57, resulting in the state of FIG. . Then cam 50
15A, the clamp arm 47 and the main chassis 53 approach each other around the rotation support shaft 51 as shown in FIG. 15C, and the disc 1 is sandwiched between the clamper 48 and the turntable 58 of the disc motor 56, and thus the center cone. It becomes rotatable by engaging with 58a. In this state, the head 13 reproduces or records information from the disk 1.
When the disk 1 is taken out from the device, the operation exactly opposite to the above operation is performed.

[0005]

However, although this disc loading device can be used as a reproducing device for a bare disc 45 such as a CD or a CD-ROM which is not contained in a protective disc cartridge, it can be used for recording. Since a reproducible disc generally requires a protective disc cartridge, there is a problem in that one disc recording / reproducing apparatus cannot use both the disc alone and the disc contained in the disc cartridge. .

Therefore, an object of the present invention is to provide a disc loading device capable of recording and reproducing signals by loading both a bare disc and a disc housed in a disc cartridge.

[0007]

According to another aspect of the present invention, there is provided a disk loading device having a first holding portion that elastically engages with engaging recesses on both sides of a disk cartridge that is inserted into the insertion opening. Holding means that has a second holding portion that elastically engages the peripheral edge of the bare disk that is formed, and that is movable in the direction that connects the insertion opening and the turntable;
And a transfer means for transferring the holding means so that the disk and the disk in the disk cartridge move between the insertion opening and the turntable.

A disk loading device according to a second aspect is
The holding means according to claim 1, wherein the holding means is provided on both sides of the moving body, and a pair of position regulating portions are provided to abut on the circular arc portion on the leading end side in the insertion direction of the peripheral edge portion of the disk to regulate the position. A pair of spring bodies, which extend from the position restricting portions toward the insertion openings and are elastically deformable in the opposite directions, and a pair of spring bodies projecting in the opposite directions from the tip portions of the spring bodies, are formed on the peripheral edge of the disk. The second holding portion is composed of a position restricting portion and an engaging portion, the engaging portion being engageable with the arcuate portion on the rear end side in the insertion direction and engageable with the engaging recess of the disc cartridge. However, the first holding part shares the engaging part.

The disk loading device according to claim 3 is
3. The regulation part according to claim 2, further comprising a regulation part for regulating the opening of the engagement part engaged with one of the disc and the disc cartridge, and a regulation releasing recess for permitting the engagement part to be released. It is formed at a position where the disc and the disc cartridge can be attached and detached at the end of the.

The disk loading device according to claim 4 is
According to a second aspect of the present invention, a notch portion or a concave portion is provided at a position where the disc is inserted so as to engage one of the disc and the disc cartridge. Claim 4
In the disk loading device, the engaging portion is formed by using an elastic body such as rubber or resin.

[0011]

According to the disc loading apparatus of the first aspect, when the disc cartridge is inserted into the insertion port, the engaging recesses on both sides of the disc cartridge are held by the first holding portion. When the bare disc is inserted into the insertion opening of the main body, the peripheral portion of the disc is held by the second holding portion. And the holding means is transferred by the transfer means,
Transferred from the insertion slot to the turntable side, the disc faces the turntable.

In this case, a bare disk and a disk cartridge can be selectively held by the holding means and loaded by using a common disk loading device. Moreover, since the tray is not required, it is possible to make the disc loading device thinner than a device that can hold the disc and the disc cartridge on the tray.

According to the disk loading apparatus of the second aspect, in addition to the operation of the first aspect, the structure becomes simple because the engaging portion shares a part of the first holding portion with the second holding portion.
According to the disk loading device of claim 3, in claim 2, the opening of the engaging portion is restricted by the restricting portion during the operation of the holding means. Therefore, in addition to the function of claim 2, during the operation of the holding means. It is safe that the disc or the disc cartridge is not accidentally disengaged from the holding means, and it is not necessary to increase the spring force of the spring body that holds the disc and the disc cartridge. Easy to put on and take off.

According to the disk loading device of claim 4, in addition to the function of claim 2, the notch or the recess is provided in the engaging portion, so that the insertion position of the disk is accurately determined and the disk is inserted obliquely. Since it is difficult for the disk to be mounted, the disk can be accurately mounted on the turntable, and it is difficult for the disk to come into contact with the insertion slot of the device, so that scratches on the disk surface can be prevented.

According to the disk loading apparatus of the fifth aspect, in addition to the operation of the fourth aspect, the engaging member is made of an elastic material so that the engagement can be facilitated and damage to the side surface of the disk can be suppressed. .

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. That is, the disc loading device of this recording / reproducing apparatus has the holding means 2 and the transfer means 3, and selectively loads the bare disc 12 and the disc cartridge 9.

As shown in FIG. 4, the disc cartridge 9 has a disc exposure window 9a extending from the central portion to the front end side in the insertion direction A, and a shutter 33 for opening and closing the disc exposure window 9a is slid in the direction of the arrow. The engaging recesses 10 are formed on both sides on the front end side in the insertion direction A, and the disc 12 'is internally provided. Further, the central portions of the disks 12 and 12 'have a magnetic body for adsorbing to the turntable 5.

First, FIG. 1 shows a main body 1 of the recording / reproducing apparatus. The main body 1 has an insertion opening 4 and a turntable 5 and a head 6 at the back of the insertion opening 4. The main body 1 of the embodiment has a flat box shape having an insertion opening 4 on one side,
The support step 17 is provided on the inner side surfaces 27 of both side walls, and the transfer slit 29 is formed on one side wall. The inner side surface 27 of the main body 1 also serves as a sliding guide surface of the moving means 2 and a restriction portion that restricts opening of an engaging portion 20 described later, but is engaged in the vicinity of the insertion opening 4 continuously with the restriction portion. The restriction release recess 7 is formed to allow the joint portion 20 to be opened. The turntable 5 is provided with a magnet so that the disks 12, 12 'are held by a magnet (not shown).

FIG. 2 shows a disk motor 8 to which a turntable 5 is attached and a recording / reproducing head 6 in the recording / reproducing apparatus. Reference numeral 100 denotes a chassis arranged at the bottom of the main body 1, and the chassis 100 communicates with the upper portion of the main body 1 through an opening 100a. Reference numeral 101 is a sub-chassis provided in the chassis 100, and a bearing portion 101b provided at one end is pivotally supported by the rotating shaft 102. 101c is the sub chassis 1
01 is a linear position restricting portion provided on one side wall. Reference numeral 103 is a bearing provided on the chassis 100,
Supports 2. Reference numeral 105 denotes a geared motor attached to the chassis 100, which has a gear 105a and which is provided at the tip of the linear position restricting portion 101c.
a. A rail 104 is held by the holding member 108 on the sub-chassis 101 and slidably guides the head 6 as a pickup. 109
Is a roller that rolls on the linear position restricting portion 101c and guides the transfer of the head 6 together with the rail 104. 10
6 is a rack provided on the head 6, 107 is a chassis 100
Is a feed motor provided on the rack, and its pinion meshes with the rack 106. 110 is the center boss of the turntable 5. With such a configuration, the sub chassis 101 is rotated about the rotation shaft 102 by the rotation of the geared motor 105 to move the disk motor 8 in the vertical direction S.
₁ and S ₂ , move the turntable 5 to disk 1
2, 12 'to be attracted to the disk or the disk 12, 12'
The head 6 is moved in the radial direction of the disk motor 8 via the rack 106 by the rotation of the feed motor 107. Therefore, the disk motor 8 rotates with the disk 12 placed on the turntable 5, and the head 6 operates the surface of the disk 12 to record / reproduce information.

The holding means 2 in FIGS. 1 and 3 is provided so as to be movable in a direction in which the insertion opening 4 in the main body 1 and the turntable 5 are communicated with each other. This holding means 2 has a first
It has a holding part 18 and a second holding part 19. The first holding portion 18 elastically engages with the engaging recesses 10 on both sides of the disc cartridge 9 inserted into the insertion opening 4. The second holding portion 19 elastically engages with the disc cartridge 9 on the peripheral portion of the bare disc 12 inserted into the insertion port 4. In the embodiment, as shown in FIG.
A pair of position restricting portions 15 provided on both side portions of the disk 12 for restricting the position by abutting on the circular arc portion on the tip side in the insertion direction A of the peripheral edge portion of the disk 12, and the direction of the insertion port 4 from these position restricting portions 15. A pair of spring bodies 22 that extend in the opposite direction and are elastically deformable in the opposite direction, and a pair of spring bodies 22 project from the tip ends of the spring bodies 22 in the opposite direction and engage with the peripheral edge portion on the rear end side in the insertion direction of the disk 12. And an engaging portion 20 that can be engaged with the engaging concave portion 10 of the disc cartridge 9. 21
Is an arcuate recess formed in the position restricting portion 15 to receive the arcuate portion of the disk 12. Reference numeral 30 denotes a connecting member, which is attached to a side portion of the moving body 16 and penetrates the transfer slit 29. The second holding portion 19 is composed of the position restricting portion 15 and the engaging portion 20, and the first holding portion 18 shares the engaging portion 20.

Here, the flat plate-shaped moving body 16 and the position regulating portion 15 are formed as separate bodies, but they may be formed integrally. Further, both sides of the moving body 16 and the position restricting portion 15 are slidably guided by the inner side surface 22 of the main body 1 and the supporting step 17. Further, the spring body 19 is a metal leaf spring as an example, and is attached to the position regulating portion 15 by the connecting means, but may be insert-molded. Further, the engaging portion 20 is formed of plastic in a hook shape so as to form a protrusion, and may be insert-molded at the tip of the spring body 19, but may be connected by a connecting means. Further, the above-mentioned restricting portion is also used by the inner side surface 27 of the main body 1, but this restricting portion restricts opening of the engaging portion 20 engaged with the disk 12 or the disk cartridge 9. Further, the restriction releasing recess 7 is allowed to be separated from the disc 12 or the like when the engaging portion 20 moves to that position, so that the disc 1
2 or the disc cartridge 9 becomes detachable.

The transfer means 3 in FIG. 1 comprises a bare disk 12 and a disk 12 'in the disk cartridge 9.
Is to move the holding means 2 so as to move between the insertion opening 4 and the turntable 5. In the embodiment, the main body 1
Of the transmission belt 31 wound around the motor 24 attached to the rear end side of the motor 24 opposite to the insertion port 4, the driving pulley 25 of the motor 24, and the driven pulley 26 provided near the insertion port 4. And the exposed side of the connecting member 30 penetrating the transfer slit 29 of the main body 1 is connected to the conductive belt 31. It is preferable to continuously form teeth (not shown) for engagement on the contact surfaces of the driving pulley 25, the driven pulley 26 and the transmission belt 31.

A geared motor 105 for determining the height of the turntable 5 and a motor 2 for determining the positions of the holding means 2.
The control of 4 is performed by the detection means and the control means (not shown) using a microcomputer or the like. As shown in FIG. 5, the detecting means includes a type detecting means 35 and position detecting means 36 to 38 of the holding means 2. The type detection means 35 is the disk 1
It is to judge whether it is 2 or the disc cartridge 9,
It operates in response to only the disc cartridge 9. As a result, the geared motor 105 is controlled so that the turntable 5 has an appropriate height according to each of the disc 12 and the disc cartridge 9.

In the position detecting means 36, the holding means 2 has the insertion opening 4
The position detecting means 37 detects that the disk 12 is positioned on the turntable 5, and the position detecting means 38 detects the disk 12 'of the disk cartridge 9'. Is detected on the turntable 5, and the motor 24 is controlled so that the holding means 2 is in an appropriate position for each of the disk 12 and the disk cartridge 9.

FIG. 5 shows a shutter expanding means 32 provided between the insertion port 4 inside the main body 1 and the turntable 5, and includes a lever 32a pivotally supported by a fixed shaft 32c and a lever 32a with a return mechanism. It consists of a biasing spring 32b. During the transfer process in which the disk cartridge 9 is transferred to the turntable 5 by the transfer means 3, the tip of the lever 32a moves to the shutter 25.
When the lever 32a is engaged with the engaging recess 26 and the lever 32a is rotated in the direction B in accordance with the movement of the shutter 33, the shutter 33 is moved in the direction C to open the disc exposure window 9a of the disc cartridge 9.

6 to 9 show the loading operation of the bare disk 12. FIG. 6 shows a stage in which the disc 12 grasped by the hand is inserted into the insertion port 4, the moving body 16 of the holding means 2 is at a standby position near the insertion port 4, and the engaging portion 20 is the regulation releasing concave portion 7. Is located in. FIG. 7 shows a state in which the disc 12 is inserted into the insertion port 4, the engaging portion 20 is pressed by the peripheral edge of the disc 12, and is retracted into the restriction releasing recess 7. FIG. The front end side of the peripheral edge of the disk 12 in the insertion direction is guided by the arcuate concave portion 21 of the guide portion 15 while the rear end side of the peripheral edge of the disk 12 in the insertion direction is held by the engaging portion 20 as a whole. Holding part 19
The disk 12 is held at the same time, and the holding means 2 is slightly moved in the insertion direction A by the operation of the transfer means 3. FIG. 9 shows a state in which the holding means 2 moved by the transfer means 3 is detected by the position detection means 37. At this time, the transfer means 3 stops its operation and the disc 12 turns the turntable 5 into a state.
Match on top. Therefore, when the turntable 5 is raised in this state, the disk 12 is held by the magnet of the turntable 5, and the recording / reproducing state is established by the rotation of the turntable 5 and the operation of the head 6.

On the other hand, after the recording / playback is completed, the disk 12
In order to take out, the turntable 5 is lowered to separate it from the disc 12, and the transfer means 3 is operated in reverse to move the holding means 2 to the standby position in the direction opposite to the insertion direction A as shown in FIGS. When moved, the disc 12 is moved from the insertion slot 4
Since a part of the disk 12 protrudes, the disk 12 is pulled out against the spring force of the spring body 19 applied to the engaging portion 20.

10 to 13 show a loading operation of the disc cartridge 9. Figure 10
Shows a state in which a part of the disc cartridge 9 is inserted into the insertion port 4 and the engaging portion 20 is pushed and retracted into the restriction releasing recess 7. In FIG. 11, the disc cartridge 9 is further inserted and the engaging portion 20 is engaged. The tip of the disc cartridge 9 in the insertion direction A is engaged with the fitting recess 10 and the type detecting means 3 is provided.
5 is in a pressed state. In FIG. 12, the holding means 2 presses the position detecting means 37 by the operation of the transfer means 3,
Since the type detecting means 35 is still being operated, the transfer means 3 cannot be stopped, and the operation of the transfer means 3 is continuing. 13 shows a state in which the holding means 2 further moves the disc cartridge 9 in the insertion direction A and the holding means 2 presses the position detecting means 38, whereby the transfer means 3 is provided.
Is stopped and the disk 12 ′ of the disk cartridge 9 is positioned on the turntable 5. By the time the disc cartridge 9 is located on the turntable 5, the shutter expanding means 32 operates to open the shutter 33. Therefore, in this state, the turntable 5 is raised to hold the disc 12 'on the turntable as described for the disc 12.
Recording by rotating the disk motor and head
Reproduction becomes possible.

On the other hand, when the disc cartridge 9 is pulled out after recording / reproducing, when the transfer means 3 of the turntable 9 is moved down to the standby position of FIG. 11 through FIGS. 13 to 12, the disc cartridge 9 is inserted. Since the disk cartridge 9 partially projects from the opening 4, when the disk cartridge 9 is grasped and pulled by hand, the engaging portion 20 retracts into the recess 7 as shown in FIG. 10, so that the disk cartridge 9 can be completely taken out from the insertion opening 4. it can.

In the present invention, the raising / lowering means of the turntable 5 is configured to raise / lower the entire disc motor 8, but it is also possible to employ a configuration to raise / lower only the shaft of the disc motor 8. Even if the positions of the disc cartridge 9 and the bare disc 12 on the turntable 5 are different as in this embodiment, the height of the turntable 5 can be adjusted by the control means as described above. The height of the disk 12 'in the disk cartridge 9 in the holding means 2 may be configured to match the height when the bare disk 12 is held, and the adjusting means of the control means may be eliminated.

The center position of the disc 12 'of the disc cartridge 9 held by the first holding portion 18 of the holding means 2 and the center position of the disc 12 held by the second holding portion 19 do not match in the held state. In this case, the transfer distances of the transfer means 3 are the same. Further, in the embodiment, the first holding portion 18 and the second holding portion 19 are partially shared, but they are not shared but are separately configured, for example, the second holding body 19 of the disk 12 is used. The circular arc concave portion 21 may be omitted by holding the peripheral portion in a holding state by a plurality of arms with rollers.
Even if the first holding portion 18 and the second holding portion 19 are separately configured, the first holding portion 18 is elastically engaged with the engaging recess, and the second holding portion 19 is a disc. Since the structure is elastically engaged with the peripheral portion of the disk, mutual interference can be easily avoided, so that there is no obstacle to the insertion of the disk 12 and the disk cartridge 9.

Although the position regulating portion 15 regulates the position of the disk 12 by the arcuate concave portion 21, it may be regulated by one or a plurality of pins. The shape and material of the spring body 22 are not limited to those in the above embodiment, and the spring body 22 is composed of an arm and a spring, and the engaging portion 20 is provided at the tip of the arm.
May be provided.

The engaging portion 20 is formed into a hook shape by bending the tip of the spring body 22 to give the engaging portion 20 itself a foldable elasticity, whereby the spring body 22 and the engaging portion 20 are provided. May be integrally configured. Further, although the spring body 22 and the engaging portion 20 are provided as a pair, only one of them may be provided,
In this case, the other one may have only the engaging portion 20 having no spring property, or may have no engaging portion 20.

Further, the transfer means 3 may be a rotation-linear motion conversion means such as a rack and a pinion, instead of the pulley and the transmission belt. According to this disc loading device, the bare disc and the disc cartridge can be selectively held by the holding means and loaded by using the common disc loading device. Moreover, since the tray is not required, there is an effect that the disc loading device can be made thinner than a device that can hold the disc and the disc cartridge on the tray.

Further, as shown in FIG. 16 (a), the engaging portion 20
Instead of the above, an embodiment having an engaging portion 120 having a notch shape or a recess as shown in the drawing is also conceivable. In this embodiment, as shown in FIGS. 17 (a) and 17 (b), the disc 12 is held by the cutout portion (d) and is positioned in the vertical direction as well.
This is an effective means for improving operability, preventing scratches on the disc, and achieving accurate loading.

Further, as shown in FIG. 16 (b), instead of the engaging portion 20, there is provided a claw 121 having a slit portion (e) formed of an elastic material such as rubber or resin as shown in the figure. Embodiments with the engagement part 122 are also conceivable. In this embodiment, as shown in FIGS. 18 (a) and 18 (b), the disc 12 is held by the slit portion (d) and is positioned vertically, and the elastic portion can stably hold the disc 12 by a high frictional force. It is also effective in preventing side damage.

Further, as shown in FIG. 16 (c), the engagement portion 20 is replaced with a claw 123 having a notch (f) formed of an elastic material such as rubber as shown in the figure. Embodiments having a joint 124 are also conceivable. In this embodiment, as shown in FIGS. 19 (a) and 19 (b), the disc 12 is held by the notch portion (d) and is positioned vertically as well, and the disc 12 can be stably held by the high frictional force of the elastic material. Is.

As described above, according to the disc loading device of the present invention, the bare disc and the disc cartridge can be selectively held by the holding means and loaded by using the common disc loading device. Moreover, since the tray is not required, there is an effect that the disk loading device can be made thinner and the structure of the mechanism can be simplified as compared with the case where the disk and the disk cartridge can be held on the tray.

Further, the engaging portion can share a part of the first holding portion and the second holding portion, and the structure can be simplified, and the separation of the engaging portion can be controlled by the regulating portion. By restricting, it is safe that the disc or the disc cartridge does not accidentally come off from the holding device during the operation of the holding device, and it is not necessary to increase the spring force of the spring body that holds the disc and the disk cartridge. The effect of facilitating the attachment / detachment of the disc and the disc cartridge in the regulation releasing recess is achieved.

[0040]

According to the disk loading device of the first aspect, the naked disk and the disk cartridge can be selectively held and loaded by the holding means by using the common disk loading device. Moreover, since the tray is not required, there is an effect that the disc loading device can be made thinner than a device that can hold the disc and the disc cartridge on the tray.

According to the disk loading device of the second aspect, in addition to the effect of the first aspect, the engaging portion shares a part of the first holding portion with the second holding portion, which simplifies the structure.
According to the disc loading apparatus of claim 3, in claim 2, the opening of the engaging portion is restricted by the restricting portion during the operation of the holding means. Therefore, in addition to the effect of claim 2, during the operation of the holding means. It is safe that the disc or the disc cartridge is not accidentally disengaged from the holding means, and it is not necessary to increase the spring force of the spring body that holds the disc and the disc cartridge. Easy to put on and take off.

According to the disk loading device of claim 4, in addition to the function of claim 2, the notch or the recess is provided in the engaging portion, so that the insertion position of the disk is accurately determined and the disk is inserted obliquely. Since it is difficult for the disk to be mounted, the disk can be accurately mounted on the turntable, and it is difficult for the disk to come into contact with the insertion slot of the device, so that scratches on the disk surface can be prevented.

According to the disk loading apparatus of the fifth aspect, in addition to the operation of the fourth aspect, the engaging member is made of an elastic material so that the engagement can be facilitated and the side surface of the disk can be prevented from being damaged. .

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing the configuration of a recording / reproducing apparatus.

FIG. 3 is an exploded perspective view of a holding means.

FIG. 4 is a perspective view of a disc cartridge.

FIG. 5 is a perspective view showing a shutter expanding means.

FIG. 6 is a schematic plan view of a state before inserting a bare disc.

FIG. 7 is a schematic plan view of a bare disk just before being held by a holding means.

FIG. 8 is a schematic plan view of a bare disk held by a holding means.

FIG. 9 is a schematic plan view showing a state in which a bare disc is held by a holding means and transferred onto a turntable.

FIG. 10 is a schematic plan view of a state before the disc cartridge is inserted.

FIG. 11 is a schematic plan view showing a state in which the disc cartridge is held by a holding means.

FIG. 12 is a schematic plan view showing a state where the disc cartridge is being transferred.

FIG. 13 is a schematic plan view showing a state where the disc cartridge is transferred onto the turntable.

FIG. 14 is a schematic perspective view of a conventional example.

FIG. 15 is a schematic cross-sectional view of its operating state.

FIG. 16 is a view showing the shape of engaging means.

FIG. 17 is a schematic plan view showing a state in which a bare disc is held by a holding means.

FIG. 18 is a schematic plan view showing a state in which a bare disc is held by a holding means.

FIG. 19 is a schematic plan view showing a state in which a bare disc is held by a holding means.

[Explanation of symbols]

 1 Main Body 2 Holding Means 3 Transfer Means 4 Insertion Port 5 Turntable 6 Head 7 Restriction Releasing Recess 9 Disc Cartridge 12 Disc 18 First Holding Part 19 Second Holding Part 20 Engagement Part

Claims (5)

[Claims] 1. A first holding portion that elastically engages with engaging recesses on both sides of a disk cartridge inserted into an insertion opening,
Holding means provided with a second holding portion that elastically engages the peripheral edge of the bare disk inserted into the insertion opening, and is movable in a direction that connects the insertion opening and the turntable, A disk loading device comprising: a transfer means for transferring the holding means so that the disk and the disk in the disk cartridge move between the insertion opening and the turntable. 2. The holding means includes a movable body, and a pair of position regulating portions provided on both sides of the movable body for regulating the position by abutting on a circular arc portion on the leading end side in the insertion direction of the peripheral edge portion of the disk. A pair of spring bodies that extend from the position restricting portions toward the insertion ports and are elastically deformable in opposite directions, and a peripheral portion of the disk that is provided at the tip of these spring bodies so as to project in the opposite directions. An engaging portion engageable with an arcuate portion on the rear end side in the inserting direction of the disc cartridge and engageable with an engaging recess of the disc cartridge, and the second holding portion includes the position regulating portion and the engaging portion. 2. The disk loading device according to claim 1, wherein the first holding portion shares the engaging portion. 3. A restriction releasing recess for restricting opening of an engaging portion engaged with one of a disc and a disk cartridge and for permitting opening of the engaging portion, 3. The disc loading device according to claim 2, wherein the disc and the disc cartridge are formed at positions where the disc and the disc cartridge can be attached and detached at the end of the regulation portion. 4. The disc loading apparatus according to claim 2, wherein the engaging portion has a notch groove at the tip for engaging the disc. 5. The disk loading device according to claim 2, wherein the engaging portion is made of an elastic material.