JP2004152423A - Optical disk recording/reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recording/reproducing device which has simple constitution and which can be miniaturized. <P>SOLUTION: The device comprises a base 11: provided with a spindle motor 13 and an optical pickup 15 for recording/reproducing data to an optical disk engaged with the spindle motor; a cartridge-holding means 21 having a shutter opening and closing mechanism; and a moving means for moving the holding means 21 toward and away from the base 11. At a cartridge-receiving part 41 facing the base 11 of the holding means 21, an opening 43, through which a bare optical disk engaged with the spindle motor 13 can be put. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an optical disk recording / reproducing device, and more particularly, to an optical disk recording / reproducing device capable of using both a cartridge containing an optical disk and a bare optical disk.
[0002]
[Prior art]
FIG. 5 is a diagram showing the appearance of a conventional optical disc (for example, MO, CD-R, PD, etc.). FIG. 5 (a) is a perspective view with its front face up, and FIG. 5 (b) is a perspective view with its back face up. In these figures, the optical disc 1 is housed in a cartridge 3 in order to prevent scratches and dirt on the medium. Data is recorded / reproduced through an opening 7 of the cartridge 3 which is opened and closed by a shutter 5.
[0003]
In recent years, it has become possible to use even a bare optical disk by improving a protective film of the optical disk.
[0004]
Further, an apparatus capable of recording and reproducing an optical disk housed in a cartridge or a naked optical disk has been proposed (for example, see Patent Document 1).
[0005]
[Patent Document 1]
JP-A-9-320170 (page 7, page 8, FIG. 7)
[0006]
[Problems to be solved by the invention]
However, in the invention described in Patent Document 1, when a cartridge or a bare optical disk is inserted into the insertion slot, a built-in loading mechanism that draws the cartridge or the bare optical disk into the device and performs chucking, or a tray that protrudes out of the device. When a cartridge or a bare optical disk is placed, the tray is pulled into the apparatus and chucking is performed. The operation of each mechanism is complicated.
[0007]
Therefore, there is a problem that the configuration becomes complicated and the device becomes large.
[0008]
The present invention has been made in view of the above problems, and an object of the present invention is to provide an optical disk recording / reproducing apparatus that can be reduced in size with a simple configuration.
[0009]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a spindle motor which engages with an optical disk and rotationally drives the optical disk, and an optical pickup which records / reproduces data on / from the optical disk engaged with the spindle motor. A provided base, cartridge holding means having a shutter opening / closing mechanism for opening a shutter of the cartridge when a cartridge containing an optical disk is inserted from a cartridge insertion opening and closing the cartridge shutter when the cartridge is ejected; A cartridge chucking state in which the optical disk of the cartridge held by the cartridge holding means is engaged with a spindle motor of the base; and a cartridge holding means and the base in a state in which the cartridge holding means is separated from the base. When One of the base and the cartridge holding means is approached / separated from the other such that the bare optical disk can be engaged with the spindle motor from the space between the base and the disk. And a cartridge receiving part facing the base of the cartridge holding means is formed with an opening through which the naked optical disk engaged with the spindle motor can be inserted. An optical disk recording / reproducing apparatus according to claim 1.
[0010]
Since the moving means merely moves one of the base and the cartridge holding means toward and away from the other, the configuration is simplified and the size can be reduced.
[0011]
Further, the cartridge receiving portion of the cartridge holding means facing the base is formed with an opening through which the naked optical disk engaged with the spindle motor can be inserted. However, the cartridge holding means can approach the base to the cartridge chucking state, so that the apparatus can be made smaller.
[0012]
Examples of the moving unit include, for example, a rotation mechanism including the base, the cartridge holding unit, and a rotating shaft that allows at least one of the base and the cartridge holding unit to rotate with respect to the other. A first link having one end rotatably attached to the base, one end rotatably attached to the cartridge holding means, and one end rotatably attached to the base. There is a link mechanism, etc., which is rotatably mounted and has a second link whose other end is rotatably mounted on the cartridge holding means.
[0013]
The invention according to claim 2, wherein an inclined portion inclined toward the base is provided at an edge of the cartridge receiving portion facing a front end surface of the inserted cartridge. It is an optical disk recording / reproducing device.
[0014]
At the edge of the cartridge receiving portion facing the front end surface of the cartridge to be inserted, an inclined portion inclined toward the base side is provided, so that when the cartridge is inserted from the insertion opening of the cartridge receiving portion, the cartridge can be removed. The cartridge can be inserted without being caught on the edge of the cartridge receiving portion.
[0015]
According to a third aspect of the present invention, there is provided the optical disk recording / reproducing apparatus according to the first or second aspect, further comprising means for partially covering an opening of the cartridge holding means.
[0016]
By providing a means for partially concealing the opening of the cartridge holding means, the area of the receiving portion for holding the cartridge can be increased, and the cartridge holding means can stably hold the cartridge.
[0017]
The invention according to claim 4, wherein a wall portion is formed on a peripheral edge of the base toward the cartridge holding means, and a position of the bare optical disk engaged with at least the spindle motor from a tip of the wall portion is formed on the wall portion. The optical disk recording / reproducing apparatus according to any one of claims 1 to 3, wherein the optical disk recording / reproducing apparatus is formed with two notches which are notched to a position substantially on a straight line passing through the spindle motor.
[0018]
Since a wall is formed on the periphery of the base in the direction of the cartridge holding means, dust does not easily enter the base.
[0019]
Further, the wall portion is cut out from the tip thereof to at least the position of the bare optical disk engaged with the spindle motor, and two notches substantially formed on a straight line passing through the spindle motor are formed. It becomes easy to engage and disengage the bare optical disk with the spindle motor.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
[0021]
FIG. 1 is a perspective view of an optical disk recording / reproducing apparatus according to an embodiment of the present invention.
[0022]
In the figure, a spindle motor 13 that engages with the optical disk and drives the optical disk to rotate is provided substantially at the center of the base 11, and at the rear of the base 11, a direction crossing the track of the optical disk engaged with the spindle motor 13. The optical pickup 15 is provided movably on the optical disk and records / reproduces data on / from the optical disk.
[0023]
On the other hand, a shutter opening / closing mechanism that opens the cartridge shutter when a cartridge containing an optical disk is inserted into the cartridge holding means 21 through a cartridge insertion opening 23 formed at the front portion and closes the cartridge shutter when the cartridge is ejected. (Not shown) is provided.
[0024]
In addition, a wall portion facing the cartridge holding means 21 is formed on the periphery of the base 11. In the present embodiment, a cartridge insertion port 23 of the cartridge holding means 21 can be opposed to the front of the base 11, and a front bent portion 12 that closes the cartridge insertion port 23 when opposed is formed. Further, a side bent portion 14 is formed on the side of the base 11 so as to be bent toward the cartridge holding means 21 so that the side surface 22 of the cartridge holding means 21 can be opposed.
[0025]
The side bent portion 14 is cut out from the tip to the position of the bare optical disc 1 engaged with the spindle motor 13, and is formed with two notches 14a substantially positioned on a straight line passing through the spindle motor. I have.
[0026]
At the rear of the base 11, a bracket 17 having a hole is provided. On the other hand, a bracket 25 having a hole is provided at the rear of the cartridge holding means 21 so as to face the bracket 17 of the base 11. Further, by inserting a pin (rotation shaft) 31 through the hole of the bracket 17 of the base 11 and the hole of the bracket 25 of the cartridge holding means 21, the cartridge holding means 21 is provided rotatable with respect to the base 11. . That is, a rotating mechanism, that is, a moving unit, including the base 11, the cartridge holding unit 21, and the pin 31 is formed.
[0027]
A lower portion of both side surfaces 22 of the cartridge holding means 21 is bent in a direction approaching each other to form a cartridge receiving portion 41 facing the base 11.
[0028]
Next, the operation of FIG. 1 will be described with reference to FIG. FIG. 2A shows that the cartridge holding unit 21 is separated from the base 11 without being obstructed by the front bent portion 12 of the base 11 until the cartridge 3 can be inserted from the cartridge insertion opening 23 of the cartridge holding unit 21. The state is shown.
[0029]
FIG. 2B shows a state in which the cartridge 3 is inserted into the cartridge holding unit 21 shown in FIG. 2A (in this state, the shutter of the cartridge 3 is opened by the shutter opening / closing mechanism of the cartridge holding unit 21). 3 shows a cartridge chucking state in which the cartridge holding means 21 is rotated in the direction of the base 11 and the optical disk 1 stored in the cartridge 3 is engaged with the spindle motor 13.
[0030]
FIG. 2 (c) shows that the cartridge holding means 21 is further rotated from the state of FIG. 2 (a) to a state further away from the base 11, and the bare optical disc 1 is removed from the space between the cartridge holding means 21 and the base 11. A state in which the disk can be engaged with the spindle motor 13 (a state in which bare disk chucking is possible) is shown.
[0031]
After the naked optical disc 1 is engaged with the spindle motor 13 and the cartridge holding means 21 is rotated toward the base 11, a state similar to that shown in FIG.
[0032]
Next, the cartridge receiving portion 42 will be described with reference to FIG. 3, which is a view of the cartridge holding means 21 in FIG.
[0033]
The two cartridge receiving portions 41 are set to have a width capable of supporting a side portion of the cartridge 3 inserted into the cartridge holding means 21.
[0034]
Further, an opening 43 through which the bare optical disk 1 (see FIG. 2C) engaged with the spindle motor 13 can be inserted is formed between the two cartridge receiving portions 41.
[0035]
Returning to FIG. 1, an inclined portion 41 a inclined toward the base 11 is formed at an edge of the cartridge receiving portion 41 facing the front end surface of the inserted cartridge 1 in the cartridge insertion opening 23 of the cartridge holding means 21. ing.
[0036]
In the present embodiment, the inclined portions 22a and 24a are also formed on the side surface 22 and the top surface 24 of the cartridge holding means 21.
[0037]
According to the above configuration, the following effects can be obtained.
(1) Since the cartridge holding means 21 is merely provided rotatably with respect to the base 11, the configuration is simplified and the size can be reduced.
(2) The cartridge receiving portion 41 facing the base 11 of the cartridge holding means 21 is formed with an opening 43 through which the naked optical disk 1 engaged with the spindle motor 13 can be inserted. Even when the cartridge is mounted, the cartridge holding means 21 can approach the base 11 to the cartridge chucking state, and the size of the apparatus can be further reduced.
(3) When the cartridge 3 is inserted from the cartridge insertion opening 23 of the cartridge holding means 21 by providing the inclined portion 41 a at the edge of the cartridge receiving portion 41 facing the front end face of the cartridge 3 to be inserted, 3 can be inserted without being caught on the edge of the cartridge receiving portion 41.
[0038]
Similarly, by forming the inclined portions 22a and 24a on the edges of the side surface 22 and the top surface 24 of the cartridge holding means 21 facing the front end surface of the cartridge 3 to be inserted, the cartridge 3 can be attached to the cartridge holding means. When the cartridge 3 is inserted from the cartridge insertion opening 23 of the cartridge 21, the cartridge 3 can be inserted without being caught on the edges of the side surface 22 and the top surface 24.
(4) At the front of the base 11, the cartridge insertion port 23 of the cartridge holding means 21 can be opposed, and the front bent portion 12 is formed as a wall for closing the cartridge insertion port 23 when facing. Further, a side bent portion 14 is formed on a side portion of the base 11 as a wall portion which is bent in the direction of the cartridge holding means 21 and can face the side surface 22 of the cartridge holding means 21. Therefore, dust does not easily enter the base 11.
[0039]
Further, the side bent portion 14 is cut out from its tip to the position of the bare optical disc 1 engaged with the spindle motor 13, and two cutouts 14a are formed which are located substantially on a straight line passing through the spindle motor. I have. Therefore, it is easy to engage and disengage the bare optical disk 1 with the spindle motor 13.
[0040]
Note that the present invention is not limited to the above embodiment. For example, by using a unit that partially covers the opening 43 of the cartridge holding unit 21, for example, a member that is detachable and bridges the two cartridge receiving units 41, the area for holding the cartridge 3 can be increased, The cartridge holding means 21 can stably hold the cartridge 3.
[0041]
Further, in the above embodiment, the cartridge holding means 21 is made to approach / separate from the base 11, but conversely, the base 11 may be made to approach / separate from the cartridge holding means 21. .
[0042]
Further, in the above embodiment, the cartridge chucking state in which the optical disc 1 of the cartridge 3 held by the cartridge holding means 21 and the spindle motor 13 of the base 11 are engaged (see FIG. 2B); With the means 21 separated from the base 11, a bare disk chucking enabled state (FIG. 2) in which the bare optical disk 1 can be engaged with the spindle motor 13 from the space between the cartridge holding means 21 and the base 11. (See (c)), an example is described in which a rotating mechanism is used as moving means for moving one of the base and the cartridge holding means toward and away from the other, as shown in FIG. It may be a mechanism. In FIG. 4, a long hole 71 and a long hole 73 are formed in the base 11 and the cartridge holding means 21, and one end of a link 75 and a link 77 which intersect at the center is rotated to the base 11 and the cartridge holding means 21, respectively. The other ends of the links 75 and 77 are movably engaged with the long holes 73 and 71.
[0043]
Further, the wall portion formed on the peripheral edge of the base 11 is not limited to the front bent portion 12 and the side bent portion 14 formed by bending the base 11. Alternatively, a wall portion corresponding to the front bent portion 12 and the side bent portion 14 may be formed in an exterior case formed of a resin or the like that covers the base 11.
[0044]
【The invention's effect】
As described above, according to the first aspect of the present invention, the moving means merely moves one of the base and the cartridge holding means toward and away from the other, so that the configuration is simplified and the size can be reduced.
[0045]
Further, the cartridge receiving portion of the cartridge holding means facing the base is formed with an opening through which the naked optical disk engaged with the spindle motor can be inserted, so that when the naked optical disk is mounted. However, the cartridge holding means can approach the base to the cartridge chucking state, so that the apparatus can be made smaller.
[0046]
According to the invention described in claim 2, the cartridge receiving portion is provided with an inclined portion inclined toward the base at an edge of the cartridge receiving portion facing the front end surface of the inserted cartridge. When the cartridge is inserted through the insertion slot, the cartridge can be inserted without being caught by the edge of the cartridge receiving portion.
[0047]
According to the third aspect of the present invention, by providing means for partially covering the opening of the cartridge holding means, the area of the receiving portion for holding the cartridge can be increased, and the cartridge holding means stabilizes the cartridge. Can be held.
[0048]
According to the fourth aspect of the present invention, the peripheral portion of the base is formed with a wall portion facing the cartridge holding means, so that dust hardly enters the base.
[0049]
In addition, the wall portion is cut out from the tip thereof to at least the position of the bare optical disk engaged with the spindle motor, and two notches substantially formed on a straight line passing through the spindle motor are formed. It becomes easy to engage and disengage the bare optical disk with the spindle motor.
[Brief description of the drawings]
FIG. 1 is a perspective view of an optical disk recording / reproducing apparatus according to an embodiment.
FIG. 2 is a diagram illustrating the operation of FIG.
FIG. 3 is a view of the cartridge holding means of FIG. 1 as viewed from the direction of arrow A.
FIG. 4 is a diagram illustrating another embodiment.
FIG. 5 is a diagram showing the appearance of a conventional optical disc.
[Explanation of symbols]
11 Base 13 Spindle motor 15 Optical pickup 21 Cartridge holding means 31 Pin 43 Opening

Claims (4)

A base provided with a spindle motor engaged with the optical disc and rotating the optical disc, and an optical pickup for recording / reproducing data on the optical disc engaged with the spindle motor;
Cartridge holding means having a shutter opening / closing mechanism for opening a shutter of the cartridge when a cartridge containing an optical disk is inserted from a cartridge insertion opening and closing the cartridge shutter when the cartridge is ejected;
A cartridge chucking state in which the optical disk of the cartridge held by the cartridge holding means is engaged with a spindle motor of the base; and a cartridge holding means and the base in a state in which the cartridge holding means is separated from the base. One of the base and the cartridge holding means is brought closer to the other from the space between the base and the cartridge holding means so that the bare optical disc can be engaged with the spindle motor in a bare disc chuckable state. / Moving means for separating
2. The optical disk recording / reproducing apparatus according to claim 1, wherein an opening through which the naked optical disk engaged with the spindle motor can be inserted is formed in a cartridge receiving portion of the cartridge holding means facing the base. apparatus. 2. The optical disk recording / reproducing apparatus according to claim 1, wherein an inclined portion inclined toward the base is provided at an edge of the cartridge receiving portion facing a front end surface of the inserted cartridge. 3. An optical disk recording / reproducing apparatus according to claim 1, further comprising means for partially covering an opening of said cartridge holding means. A wall is formed on the periphery of the base in a direction toward the cartridge holding means,
The wall is cut out from its tip to at least the position of a bare optical disk engaged with the spindle motor, and is formed with two notches substantially positioned on a straight line passing through the spindle motor. An optical disk recording / reproducing apparatus according to any one of claims 1 to 3.

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