JPH0614318Y2 - Disk device - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a CD (compact disk) or LD (laser disk).
The present invention relates to a disk device used for playing back etc.

[Conventional technology]

A conventional disc device includes, for example, a CD for reproducing a CD.
There is a player. In the stationary type of the CD player, generally, for replacing a CD, for example, a disc loading tray (hereinafter referred to as a disc tray) moves forward and protrudes from the main body of the apparatus.

In this type of disc device, for example, a front panel having an opening is provided on the front side of a cabinet to form an outer shell of the device body. Inside the cabinet, a disc tray movably supported on the guide rails and a turntable arranged below the disc tray are provided. The disc tray is located at a height corresponding to the opening.

The disc tray moves between the projecting position, which is a state of projecting from the apparatus body, and the storage position, which is a state of being stored in the apparatus body, through the opening. The disc tray has constricted portions formed on both sides thereof, and a concave portion having a shape along the disc is formed on the upper surface of the disc tray corresponding to the constricted portions. The diameter of the stepped portion of the recess is 3 mm larger than the diameter of the disc. Further, the mouth of the recess is chamfered to facilitate loading of the disc into the stepped portion. A transparent window is formed in the stepped portion in the depth direction of the apparatus main body from approximately the center. The disc loaded with the turntable is rotated from below, which is approximately the center of the transmission window, so that the lower surface of the disc is irradiated with laser light.

On the other hand, a front plate member is provided on the front side of the disc tray. When the disc tray is located at the storage position, the front plate member is located inside the opening and closes the opening.

In the above-mentioned CD player, the CD is placed on the disc tray.
When loading the disk tray, the disk tray projects from the device body from the storage position through the opening. As a result, the disc tray moves to the projecting position and the recess is exposed. In this state, a CD can be loaded on the disc tray.

Next, when the disc tray is stored, the disc tray moves into the main body of the apparatus and is located at the storage position in the cabinet. After being mounted on the turntable, the CD in the storage position is rotated to focus the laser light on the lower surface of the CD.

However, since the diameter of the above-mentioned stepped portion is 3 mm larger than the diameter of the CD, the CD on the disc tray is
The maximum between the center of the step and the center of the CD when loaded
A gap of 1.5 mm may occur. If such a shift occurs even at the accommodation position, it becomes difficult to mount the turntable, and reproduction becomes impossible.

For this reason, the center of the stepped portion and the center of the CD are substantially aligned with both side edges of the CD on the disc tray at the storage position.
It is conceivable to provide guide members capable of guiding both side edges of the CD.

[Problems to be solved by the device]

However, after the CD is mounted on the turntable, the CD
Vibration may be applied to the player. In such cases,
If the shake due to vibration is in the same direction as the movement direction of the disc tray, there is a margin of 1.5 mm between the CD and the recess, and no obstacle will occur unless the shake due to vibration exceeds 1.5 mm. However, when the vibration due to the vibration is in the both side end directions of the CD orthogonal to the moving direction of the disc tray, there is no allowance between the CD and the guide member, so that the CD being played is impacted or the CD This causes inconvenience such as damage to both ends.

On the other hand, if guide members are not provided at both end sides of the CD on the disc tray at the storage position, there will be no inconvenience such as impact to the CD being reproduced or damage to both side edges of the CD. However, after the disc tray is in the storage position and before the turntable is mounted, if there is swaying in both side edges of the CD, 1.5 mm or more between the center of the stepped portion and the center of the CD. There is a possibility that a deviation occurs, which causes a disadvantage that the reproduction becomes impossible at all.

[Means for Solving the Problems]

The disk device according to the present invention has been made to solve the above problems.

That is, the disc device according to the first aspect comprises a device main body and a disc loading tray having a disc placing portion on which the disc is placed with both ends thereof protruding. In a disk device that is movable between a projecting position in which the device projects forward from the device body and a storage position in which the device is housed in the device body, the disk device corresponds to the height position of the disk on the disk mounting portion. It is characterized in that the guide members for guiding the both ends of the projected disk are arranged in the apparatus main body during the movement to the storage position.

According to a second aspect of the present invention, in the disc device according to the first aspect, the disc device corresponds to the height position of the disc on the disc mounting portion at the storage position and is spaced apart from the disc outer periphery by a predetermined distance. It is characterized in that vibration relief portions having a shape along both end sides of the disk are arranged.

[Action]

According to the structure of the first aspect, while moving the disc loading tray on which the disc is placed to the storage position, both side edges of the disc are guided by the guide members to substantially the center of the disc mounting portion. become. That is,
It is not necessary to provide guide members on both ends of the disk at the storage position. Therefore, even if swing is applied to both side edges of the disc orthogonal to the moving direction of the disc tray, there is less risk that the disc being reproduced is impacted or both end edges of the disc are damaged.

Further, according to the structure of the second aspect, both sides of the disc are set after the disc tray is placed in the accommodating position where the disc is placed and before the disc is fixed in the reproduction state. Even if a shake in the end direction is applied, the disc is not largely displaced at the disc mounting portion. Therefore, there is less risk that the disc will become unreproducible after it has moved to the storage position.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In a CD player for playing a CD, this CD
For example, as shown in FIG. 1, the player has a rectangular opening 2a and an eject key 4 on the front side of the cabinet 1.
The front panel 2 having the above is provided to form the outer contour of the apparatus main body. As shown in FIG. 2, a guide rail 5 is provided in the cabinet 1. A disc loading tray 3 (hereinafter referred to as a disc tray) is provided on the guide rail 5 so as to be movable in the directions of arrows AB. A turntable (not shown) is provided below the disc tray 3 with a disc clamper portion. The disc tray 3 is located at a height corresponding to the opening 2a. The disc tray 3 is pushed between the projecting position, which is the state where it is projected from the panel 2 through the opening 2a, and the storage position, which is the state where it is stored in the cabinet 1, by pushing the eject key 4. To move. A front plate member 3 a is provided on the front side of the disc tray 3. The front plate member 3a closes the opening 2a when the disc tray 3 is in the storage position.

The disc tray 3 has constricted portions 3e and 3 on both sides thereof.
e is formed, and a concave portion 3b having a shape along the CD to be placed is formed on the upper surface of the disc tray 3 corresponding to the constricted portions 3e and 3e. This recess 3b
The stepped portion 3c has a disc mounting portion, and the diameter of the stepped portion 3c is 3 mm larger than the diameter of the CD. Further, the mouth of the recess 3b has a tapered portion 3f.
Is formed to facilitate the mounting of the CD on the stepped portion 3c. A transmissive window 3d is formed in the stepped portion 3c in the depth direction of the cabinet 1 from approximately the center. The turntable rotates the CD from below, which is substantially in the center of the transmission window 3d, while irradiating the lower surface of the rotating CD with laser light.

Here, the CD on the stepped portion 3c in the cabinet 1
As shown in FIG. 3, on both sides, a pair of guide members 9 corresponding to the height position of the CD and separated by a gap a from both side edges of the CD are provided from the vicinity of the rear surface of the front panel 2 to the inner back portion. Are extended parallel to each other. These guide members 9, 9 extend in the direction of arrow B, which is further rearward than both side ends of the CD at the accommodation position. The front end side of the guide members 9 and 9 located near the back surface of the front panel 2 has tapered portions 9b and 9b that widen toward the back surface of the front panel 2. In addition, the guide members 9 and 9 on both sides of the CD at the storage position
As shown in FIG. 4, the vibration relief portions 9a and 9a are recessed at intervals E and E along the shape on both sides of the CD. That is, the guide members 9 and 9 also have a structure that doubles as a vibration escape member, and may be integrally formed as described above, but they may be separately formed.

In the above structure, when loading the CD on the disc tray 3, the eject key 4 is pushed to push the disc tray 3
Is moved from the storage position in the direction of arrow A, and is projected from the front panel 2 through the opening 2a. As a result, the disc tray 3 moves to the protruding position, and the recess 3b is exposed.
In this state, the CD is placed on the stepped portion 3c.

Next, press the eject key 4 again to push the disc tray 3
Is moved in the direction of arrow B from the protruding position. At this time, if the center of the stepped portion 3c and the center of the CD are deviated from each other, the end portion of the CD projecting unevenly first comes into contact with the tapered portion 9b of the guide member 9. After that, the end portion of the CD is guided by the guide member 9, and the center of the stepped portion 3c and the center of the CD are positioned substantially at the accommodation position.

In this embodiment, there is a clearance aa between the guide member 9 and both side edges of the CD. Due to this gap a · a, the above C
When one end of D contacts the guide member 9 and is guided, C
The other end of D does not hit the guide member 9 strongly, and the center of the stepped portion 3c and the center of CD can be smoothly made substantially coincident with each other.

Even after the CD is moved to the accommodating position and before the CD is fixed by the disc clamper portion of the turntable, even if swinging in the direction connecting the guide members 9 occurs, both end sides of the CD The vibration escape portions 9a and 9a come into contact with the CD, and the CD is not displaced to such an extent that reproduction cannot be performed. Further, when the CD is fixed to the disc clamper and is in a reproducing state, even if swinging in the direction connecting the guide members 9 and 9 occurs, it is between the both ends of the CD and the vibration escape portions 9a and 9a. There is a margin of 1.5mm each. Therefore, as long as the vibration of the CD does not exceed 1.5 mm, the CD being played will not be impacted or both side edges of the CD will be damaged.

[Effect of device]

As described above, the disc device according to the first aspect of the present invention includes the device main body and the disc loading tray having the disc mounting portion on which the discs are mounted with both ends thereof protruding. In the disc device in which the disc loading tray is movable between a projecting position where the disc loading tray projects forward from the device body and a storing position where the disc loading tray is housed in the device body, A guide member corresponding to the height position and guiding the both ends of the protruding disk is arranged in the main body of the apparatus during the movement to the storage position.

Thus, while the disc loading tray on which the disc is placed is moved to the storage position, both side edges of the disc are surely guided to substantially the center of the disc placing portion by the guide member. That is, it is not necessary to provide guide members on both ends of the disc at the storage position. Therefore, even if shaking is applied to both side edges of the disc that are orthogonal to the moving direction of the disc tray, there is less risk that the disc being played is impacted or both side edges of the disc are damaged. Produce an effect.

Further, as described above, the disk device according to the second aspect of the present invention corresponds to the height position of the disk on the disk mounting portion at the storage position and is spaced from the disk outer periphery by a certain distance. This is a configuration in which vibration relief portions having a shape along both ends of the disc are arranged.

As a result, even if the disc tray is placed in the accommodating device and is shaken toward both side ends of the disc until the disc is in the reproduction state and is fixed, The disc will not be greatly displaced on the mounting portion. Therefore, it is less likely that the disc will become unreproducible after the disc is moved to the storage position. Further, even if the disc is shaken toward both side ends after the disc is in the reproduction state, the both side ends of the disc do not hit the vibration escape portion until the shake exceeds a certain width. As a result, it is possible to prevent an impact from being applied to the disc being reproduced and damage to both side edges of the disc.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a schematic perspective view showing the disc loading tray in a protruding position, and FIG. 2 shows the disc loading tray. FIG. 3 is a vertical cross-sectional side view showing a state in which the disc loading tray is in a projecting position, FIG. 3 is a schematic cross-sectional plan view showing a state in which the disc loading tray is in the middle of moving from the projecting position to the receiving position, and FIG. It is a schematic cross-sectional top view which shows the state which moved to the accommodation position. 1 is a cabinet, 2 is a front panel, 2a is an opening, 3
Is a disc loading tray, 3a is a front plate member, 3a
b is a recessed portion, 3c is a stepped portion (disk mounting portion), 3d is a transparent window, 3e is a constricted portion, 3f and 9b are tapered portions, 4 is an eject key, 5 is a guide rail, 9 is a guide member, and 9a is It is a vibration relief part.

Claims (2)

[Scope of utility model registration request] 1. A device main body, and a disc loading tray having a disc mounting portion on which both end sides of the disc are mounted, the disc loading tray protruding forward from the device main body. In a disc device that is movable between a position and a storage position that is accommodated in the device body, it corresponds to the height position of the disc on the disc mounting portion and guides both side edges of the projecting disc. A disk device, wherein the guide member is arranged in the main body of the device during movement to the storage position. 2. A vibration escape portion having a shape corresponding to the height position of the disk on the disk mounting portion at the storage position and having a shape along both ends of the disk at a constant distance from the outer circumference of the disk. The disk device according to claim 1, wherein the disk device is a disk device.