JPH04344364A - Disk device - Google Patents

Abstract

PURPOSE:To facilitate stable installation by preventing a hard case from moving with the hard case pressed to the reference position of the three arranged projection points and with a projection part abutted on the hard case even when vibration and shock are applied on the disk device. CONSTITUTION:The main part of the disk attachment function with the disk 1 installed forms a slot part 3a capable of guiding and receiving the opposite two sides 2a and 2b of a hard case 2. A hold means 3 and three projection parts 4a, 4b, and 4d are formed on the placing plate 4 so as to install the hard case 2 in the prescribed position. On the placing plate 4, three projection parts 4a, 4b, and 4d are formed. Two projection parts 4a and 4b are arranged near the prescribed position, and the other projection part 4d to the left in the figure is located approximately in the middle to the left of the prescribed position.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical structure of a disk device, and more particularly to a mechanical structure for mounting a disk.

0002

[Prior Art] A typical example of a conventional disk device is AN.
SI (American National Stan)
A well-known disk device is generally known in which disks stored in a substantially planar rectangular hard case as defined in the X3B standard are inserted and loaded to perform recording or playback.More details are shown in FIG. Shown below. FIG. 2 is a perspective view of main parts of a conventional disk device, illustrating the disk mounting function relationship.

[0003] In FIG. 2, a disk 1 is housed in a hard case 2 having a substantially rectangular planar shape and made of, for example, plastic material, and a detailed explanation thereof will be omitted as it is stipulated by the ANSI-X3B standard. , a recording and reproducing medium configured to be rotatable. Note that the hard case 2 is formed with two guide holes 2c and 2d for predetermined positioning.

On the other hand, the main part of the disk loading function of the recording/reproducing apparatus that loads the disk 1 and performs recording or playback is a slot portion that can guide and receive the two opposing sides 2a and 2b of the hard case 2. The hard case 2 is made up of a holding means 3, which forms a cylindrical shape 3a and has a tendency to move in the direction of an arrow 21 in the figure, and a mounting table 4 for mounting the hard case 2 at a predetermined position. On the mounting table 4, four protrusions 4a and 4b for mounting the hard case 2 are arranged at predetermined positions defined in the above-mentioned ANSI-X3B standard. The protrusions 4b are each provided with two guide pins 4c for engaging with guide holes 2c and 2d formed in the hard case 2 for predetermined positioning.

[0005]Furthermore, the holding means 3 is formed with four protrusions 3b which protrude into the slot portions 3a toward the respective protrusions at positions corresponding to the protrusions 4a and 4b of the mounting table 4, When the holding means 3 moves in the direction of arrow 21, the protrusion 3b comes into contact with and presses the hard case 2 placed on the protrusions 4a and 4b of the mounting table 4.

Based on the above structure, the hard case 2 is inserted toward the holding means 3 in the direction of arrow 20, and when the insertion is completed to a predetermined position, the holding means 3 is inserted into the hard case by the operation of a trigger mechanism (not shown). 2, the hard case 2 is moved in the direction of the arrow 21 and placed on the four protrusions 4a and 4b of the above-mentioned mounting table 4, and the four protrusions 3b formed on the above-mentioned holding means 3. The guide pin 4c engages with the guide holes 2c and 2d formed in the hard case 2, thereby positioning the hard case 2 in a predetermined plane direction.

[0007]

As described above, in the conventional technology, the holding means 3 receives the hard case 2 and moves in the direction of the arrow 21 in FIG. 4 is placed on the four protrusions 4a and 4b of the above-mentioned hard case 2, and pressed by the four protrusions 3b formed on the above-mentioned holding means 3 at positions corresponding to the above-mentioned protrusions 4a and 4b. Two guide pins 4c engage with the formed guide holes 2c and 2d to achieve positioning in a predetermined plane direction, and these two guide holes 2c and 2d and the two guides When the pins 4c are engaged, the structure is such that they are originally engaged at the same time, but one is engaged first and the other is caught in the middle of the guide pin 4c, that is, the hard case 2 is tilted. After the mounting is completed, the four protrusions 4a and 4b of the mounting table 4 may not be properly positioned with respect to the reference positions, and if recording or playback is performed in this state, the data may not be compatible. It could be damaged.

[0008] Furthermore, the flatness of the above-mentioned substantially rectangular hard case 2 made of plastic material or the like is as follows.
High precision is not guaranteed, and the predetermined deformation (warpage) standard that takes into account mass production when molding plastic materials etc. is the aforementioned ANSI (American National Standards).
nal Standards Institute
) X3B standard, and is placed on the four protrusions 4a and 4b of the mounting table 4 as described above.
Even if the hard case 2 is pressed by the four protrusions 3b formed at positions corresponding to the hard case 2, which is allowed to undergo the above-mentioned plane deformation (warp), the hard case 2 is not evenly pressed and placed.
At least one place has a gap or is placed in an unstable state with reduced pressing force, and has a predetermined positional relationship with respect to the four protrusions 4a and 4b of the mounting table 4 configured as a reference position. This could lead to instability and adversely affect recording or playback performance.

Furthermore, the above-mentioned modification of the hard case 2 (
This warping also causes the aforementioned inclination of the hard case 2 and incomplete positioning of the mounting table 4 with respect to the reference position.

[0010] Therefore, the present invention is intended to solve the above-mentioned problems, and its purpose is to solve the above-mentioned problems even when a hard case 2 that is allowed to undergo plane deformation (warpage) is installed. Guide hole 2c formed in hard case 2
and 2d, thereby preventing tilting of the hard case 2 and incomplete positioning of the mounting table 4 with respect to the reference position, thereby ensuring stability of recording or reproduction. Furthermore, even if the hard case 2, which is allowed to undergo planar deformation (warpage), is pressed for recording and playback, it should be placed in a stable posture relative to the mounting standard and pressed almost uniformly. This stabilizes the placement and ensures stability in recording or playback.

[0011]

[Means for Solving the Problems] A disc device of the present invention records or plays back by inserting and mounting discs collected in a hard case that is formed into a substantially rectangular plane and has a guide hole for predetermined positioning. In a disc device that performs recording or reproduction, the hard case is inserted into a holding means whose at least two opposing sides are guided in the insertion direction, and at a position where recording or reproduction is performed, the hard case is engaged with the guide hole and held in a predetermined position. It is characterized in that one guide pin for positioning is engaged, and a part of the holding means is mounted by pressing in a planar direction with respect to a reference position.

0012

[Operation] According to the above configuration of the present invention, even when a hard case that allows plane deformation (warpage) is installed in the disk device of the present invention, the predetermined hard case provided in the hard case can be used. The guide hole that performs positioning is stably engaged with one guide pin that engages with the guide hole to perform predetermined positioning, and reliable positioning is achieved. Since there is no chance of a stuck condition, the hard case will not be tilted or placed in an incomplete position with respect to the reference position, and some pressing force may be reduced, preventing the hard case from being placed in an unstable condition. It does not need to be attached, and extremely stable attachment can be achieved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a suitable embodiment of the disk device of the present invention, and is a perspective view of the main parts of the disk device of the present invention.
The relationship between disk loading functions is illustrated. The disk device of the present invention shown in FIG. 1 is based on the ANSI (A
merican national standa
This is a disk device that performs recording or playback by inserting and mounting disks housed in a substantially planar rectangular hard case as defined in the X3B standard, and has the same functions as the conventional example described above in Figure 2. The same reference numerals are used to describe the parts having the same reference numerals.

In FIG. 1, a disk 1 is housed in a hard case 2 having a substantially rectangular planar shape and made of, for example, plastic material, and a detailed explanation thereof will be omitted as it is stipulated by the ANSI-X3B standard. , a recording and reproducing medium configured to be rotatable. Note that the hard case 2 is formed with two guide holes 2c and 2d for predetermined positioning.

On the other hand, the main part of the disk loading function of the recording and reproducing apparatus which loads the disk 1 and performs recording or playback is a slot portion that can be received by guiding the two opposing sides 2a and 2b of the hard case 2. The hard case 2 is made up of a holding means 3, which forms a cylindrical shape 3a and has a tendency to move in the direction of an arrow 21 in the figure, and a mounting table 4 for mounting the hard case 2 at a predetermined position. The mounting table 4 has three protrusions 4a, 4b and 4d for mounting the hard case 2.
is formed, the two protrusions 4a and 4b on the right side of the figure are arranged near the predetermined position defined in the above-mentioned ANSI-X3B standard, and the other protrusion 4d on the left side of the figure is arranged in the vicinity of the above-mentioned ANSI-X3B standard.
It is arranged approximately in the middle position of the predetermined position on the left side defined in the SI-X3B standard. The protrusion 4b has a guide hole 2d formed in the hard case 2 for predetermined positioning by engaging with one guide hole 2d of the two guide holes 2c and 2d for predetermined positioning. One guide pin 4c is provided.

Furthermore, the holding means 3 has three protrusions 3b formed at positions corresponding to the protrusions 4a, 4b, and 4d of the mounting table 4, which protrude into the slot portions 3a toward the respective protrusions. When the holding means 3 moves in the direction of arrow 21, the protrusion 3b comes into contact with and presses the hard case 2 placed on the protrusions 4a, 4b, and 4d of the mounting table 4.

Based on the above structure, the hard case 2 is inserted toward the holding means 3 in the direction of arrow 20, and when the insertion is completed to a predetermined position, the holding means 3 is moved to the hard case 2 by the operation of a trigger mechanism (not shown). The hard case 2 is placed on the three protrusions 4a, 4b, and 4d of the above-mentioned mounting table 4 by moving in the direction of the arrow 21 in a state in which the hard case 2 is received, and the three protrusions formed on the above-mentioned holding means 3 are moved. 3b, one guide pin 4c engages with one guide hole 2d of the two guide holes 2c and 2d formed in the hard case 2, and positioning in the plane direction is achieved. The configuration is as follows. The holding means 3 has three protrusions 3b formed at positions corresponding to the protrusions 4a, 4b, and 4d of the mounting table 4 so as to protrude into the slot portions 3a toward the respective protrusions. The ANS described above in the conventional example
Protrusions 3c are arranged at positions substantially corresponding to four predetermined positions defined in the I-X3B standard, and have substantially the same height as the three protrusions 3b.

Regarding the disk device of this embodiment described above, the points to be noted here are summarized as follows.

1). The flatness of the hard case 2, which is made of a plastic material or the like and has a substantially rectangular shape, is as follows.
Even in the conventional example, as mentioned above, high precision is not guaranteed, and the predetermined deformation (warpage) tolerance standard that takes mass production into consideration when molding plastic materials etc. is the above-mentioned ANSI (Am
erican national standard
As stated above, in the disk drive of this embodiment, the holding means 3 moves in the direction of the arrow 21 in FIG. It is placed on the three protrusions 4a, 4b, and 4d of the above-mentioned mounting table 4, and pressed by the three protrusions 3b formed on the above-mentioned holding means 3 at positions corresponding to the protrusions 4a, 4b, and 4d. The hard case 2 is placed on the four protrusions 4a and 4b of the mounting table 4 described above in FIG.
If the hard case 2, which is pressed by the four protrusions 3b formed at positions corresponding to Or, what is the conventional structure in which the mounting table 4 is placed in an unstable state with a reduced pressing force, and the predetermined positional relationship with respect to the four protrusions 4a and 4b of the mounting table 4, which is configured as a reference position, becomes unstable? Differently, the disk device of this embodiment has a hard case 2 that is allowed to undergo planar deformation (warp).
Even when the hard case 2 is inserted into the holding means and mounted by pressing a part of the holding means 3 in a plane direction with respect to the reference position, the hard case 2 has protrusions 4 arranged at three points.
Parts may have gaps with respect to the reference positions of a, 4b, and 4d and may be placed in an unstable position, or the pressing force may be reduced in some parts and may be placed in an unstable position. This results in extremely well-balanced and stable mounting, ensuring stable recording or playback.

Furthermore, the reference positions of the three protrusions 4a, 4b, and 4d arranged on the mounting table 4, and the three protrusions 4a,
The three protrusions 3b formed on the holding means 3 corresponding to the positions 4b and 4d have a simpler structure than the conventional example in which each protrusion has four points, and their height accuracy is only coarse. It has a structure that is extremely suitable for mass production since it does not affect functionality even when configured.

2). The disk device of this embodiment, in which a disk is inserted and loaded to perform recording or reproduction, is also incorporated into a device that is often carried and used, such as a notebook type personal computer. Naturally, the disk drive often encounters disturbances such as vibrations and shocks, and it is necessary to stably mount the disk in order to maintain the prescribed recording and playback function even when encountering such disturbances. ing.

Therefore, in this embodiment, the above-mentioned holding means 3
In addition to the three protrusions 3b formed at positions corresponding to the protrusions 4a, 4b, and 4d of the mounting table 4 and protruding into the slot portion 3a toward each protrusion, A protrusion 3c is formed at a position substantially corresponding to four predetermined positions defined in the ANSI-X3B standard, and has a height substantially equal to that of the three protrusions 3b. Even if the disk device encounters disturbances such as vibration or impact, the hard case 2 will not be pressed against the reference positions of the protrusions 4a, 4b, and 4d arranged at three points. When installed, the protrusion 3
c comes into contact with the hard case 2 and prevents the hard case 2 from fluttering, etc., allowing stable mounting.

Although illustrations and explanations are omitted, in order to achieve this purpose, the height of the three protrusions 3b and 3c formed protruding from the holding means 3 should be formed to be extremely low, or the above-mentioned mounting method should be used. In addition to the protrusions 4a, 4b, and 4d of the mounting table 4, if a protrusion formed slightly lower than the protrusions 4a, 4b, and 4d is arranged near the position corresponding to the protrusion 3c formed on the holding means 3, The protrusion 3c is not necessarily a necessary condition, and the same effect can be obtained even if it is not provided.

3). In the conventional technique described above with reference to FIG.
The hard case 2 was moved in the direction of the arrow 21 and placed on the four protrusions 4a and 4b of the mounting table 4, and the holding means 3 was formed at positions corresponding to the protrusions 4a and 4b. Pressed by the four protrusions 3b, the two guide pins 4c engage with the two guide holes 2c and 2d formed in the hard case 2, and positioning in a predetermined planar direction is achieved. These two guide holes 2
When the two guide pins 4c and c and 2d are engaged, they are originally designed to be engaged at the same time, but one is engaged first and the other is caught in the middle of the guide pin 4c, i.e. In some cases, the installation was completed with the hard case 2 tilted, and the four protrusions 4a and 4b of the mounting table 4 could not be positioned in a predetermined position with respect to the reference position. When recording or playing back in this state, data compatibility has often been compromised.
In this embodiment, as shown in FIG. 1 and described above, the hard case 2
One guide pin 4c engages with one of the two guide holes 2c and 2d formed in the guide hole 2d for predetermined positioning, resulting in stable positioning. Positioning is possible and the above-mentioned problems do not occur.

By the way, the two guide holes 2c formed in the above-mentioned hard case 2 for performing predetermined positioning
and one guide pin 4c in one guide hole 2d of 2d.
In the configuration in which a predetermined position is performed by engaging with the hard case 2, the predetermined position is achieved in the insertion direction of the hard case 2, that is, in the direction of the arrow 20, but the hard case 2 is positioned at a predetermined position in the direction of the insertion direction, that is, in the direction of the arrow 20. Although the structure does not allow forcible positioning in the plane rotation direction, the position in this direction is restricted by forming a slot portion 3a that can be received by guiding the two opposing sides 2a and 2b of the aforementioned hard case 2. Arrow 21 in the figure
It is indirectly formed with a slight gap by the holding means 3 which has a tendency to move in the direction, and has a simple structure.

In the above structure, one guide pin 4c engages with one guide hole 2d of the two guide holes 2c and 2d formed in the hard case 2 for performing predetermined positioning. Although the configuration is for positioning, it goes without saying that the same effect can be achieved even if one guide pin 4c is formed that engages with the opposite guide hole 2c. The above-mentioned three protrusions 4a, 4b, and 4d are formed on the protrusion 4b for placing the hard case 2 on the hard case 2, and a guide pin 4c that engages with the guide hole 2d is formed on the protrusion 4b. As in the conventional example, four reference positions are formed on the mounting table 4, and one of the two guide holes 2c and 2d formed in the hard case 2 is used to perform predetermined positioning at one of the reference positions. Needless to say, even if one guide pin 4c is configured to engage one of the guide holes, the above-mentioned stable positioning and mounting can be achieved.

[0027]

Effects of the Invention As described above, the present invention has many of the above-mentioned practical effects among the embodiments of the present invention. In particular, in the disk device of the present invention, it is possible to In a disc device in which recording or playback is performed by inserting and mounting discs stored in a hard case formed in a hard case having a guide hole for predetermined positioning,
The hard case is inserted into a holding means whose at least two opposing sides are guided in the insertion direction, and at the recording or playback position, a single rod is engaged with the guide hole to perform predetermined positioning. The guide pin engages,
By having a structure in which a part of the holding means is attached by pressing in a plane direction with respect to the reference position, even when a hard case that is allowed to be deformed in plane (warpage) is attached, A guide hole provided in the hard case that performs predetermined positioning is stably engaged with a single guide pin that engages with the guide hole to perform predetermined positioning, thereby achieving reliable positioning. Since there is no chance of the hard case getting stuck in the middle of engagement with the guide pin, the hard case will not be tilted or placed with incomplete positioning relative to the reference position, and some pressing force will be reduced. The practical effects of the present invention are extremely large, as the device can be installed in an extremely stable manner without causing the device to be installed in an unstable state, thereby ensuring stability in recording or reproducing.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a main part of a suitable embodiment of a disk device of the present invention.

FIG. 2 is a perspective view of main parts of a conventional disk device.

[Explanation of symbols]

1 ・・・・・・・・・ Disc 2..... Hard case ３　・・・・・・　Holding means 3a... Slot part 3b...Protruding part ４　・・・・・・　Placement stand 4a・・・・・・Protrusion 4b...Protrusion 4c・・・・・・Guide pin 4d・・・・・・Protrusion

Claims (2)

[Claims] 1. In a disk device in which recording or playback is performed by inserting and mounting disks stored in a hard case formed into a substantially rectangular shape and equipped with a guide hole for predetermined positioning, the hard case comprises: , at least two opposing sides are inserted into the holding means guided in the insertion direction, and at the recording or reproducing position, one guide pin that engages with the guide hole to perform predetermined positioning is engaged. A disk device characterized in that the holding means is mounted by pressing a part of the holding means in a plane direction with respect to a reference position. 2. The reference positions are arranged at three points, and a part of the holding means is mounted by pressing in a plane direction at a position that substantially coincides with the reference positions arranged at at least the three points. The disk device according to claim 1, characterized in that the disk device comprises: