JP4936475B2 - Disc recording medium processing apparatus - Google Patents

Description

  The present invention relates to a disk recording medium processing apparatus for performing at least one of reproduction processing of recorded items on a disc-shaped disk recording medium such as a CD, DVD, Blu-ray, and recording processing of recorded items on a disk recording medium. The present invention belongs to the technical field of a disk recording medium processing apparatus including a pair of arms that can support an outer peripheral edge of a recording medium and can be rotated in synchronization with each other.

  Conventionally, in this type of disk recording medium processing apparatus, a disk recording medium processing apparatus having a disk switching mechanism is known (for example, see Patent Document 1). This disk switching mechanism includes a pair of disk detection levers each having a detection pin at the tip. In that case, the outer periphery of the 8 cm disc and 12 cm disc inserted into the apparatus main body abuts on the disc detection pin, and the pair of disc detection levers rotate in a horizontal plane to move the inserted disc to the drive position ( Transport to disk clamp position. At this time, the amount of rotation of the pair of disc detection levers differs depending on the size of the disc, so the size of the disc is detected based on this amount of rotation. The disk switching mechanism switches the positions of the disk positioning pins according to the different sizes of the disks, and centers the disks of different sizes to the same drive position. The pair of disc detection levers are biased to the initial standby position by biasing means such as a spring when the disc is not inserted into the apparatus main body.

Japanese Patent Application Laid-Open No. 2000-67496.

  By the way, in the disk switching mechanism in the disk recording medium processing device described in Patent Document 1, the disk detection pin with which the outer peripheral edge of the inserted disk comes into contact rotates in the same horizontal plane at a certain height to convey the disk. It is supposed to be. However, since there are other parts of the disk recording medium processing apparatus below the disk detection pin in the rotation area of the disk detection pin, the disk detection pin interferes with this part during the rotation. There is a fear. Therefore, the disk detection pin cannot protrude so much downward. For this reason, the contact amount (hook amount) between the disc detection pin and the outer peripheral edge of the disc is restricted to be small.

  On the other hand, when the outer peripheral edge of the disc comes into contact with the disc detection pin and the pair of disc detection levers start to rotate, the pair of disc detection levers are biased to the standby position, so a relatively large force is required. It becomes. However, as described above, if the amount of catch between the disk detection pin and the outer peripheral edge of the disk is small, there is a problem that it is difficult for the outer peripheral edge of the disk to stably press the disk detection pin.

  The present invention has been made in view of such circumstances. The object of the present invention is to increase the contact amount when the outer peripheral edge of the disk and the disk detection lever of the disk switching mechanism are in contact with each other. It is an object of the present invention to provide a disk recording medium processing apparatus capable of preventing interference with parts.

In order to solve the above-described problems, a disk recording medium processing apparatus according to the present invention includes a first arm rotated by a large-diameter disk and a small-diameter disk being conveyed, and a second arm rotated by the disk. In the disk recording medium processing apparatus including at least a synchronization mechanism for synchronously rotating the first and second arms, the at least one of the first and second arms is capable of relative rotation and relative vertical movement. A disk switching arm provided at least with a disk abutting portion with which an outer peripheral edge of the large-diameter disk abuts, and a vertical movement mechanism for relatively moving the disk switching arm up and down by relative rotation of the disk switching arm The disk switching arm has a low position where the amount of contact between the outer peripheral edge of the large-diameter disk and the disk contact portion is large and the front A high position with a small amount of contact is set, and the vertical movement mechanism sets the disk switching arm to the low position at an inactive initial position of at least one of the first and second arms, and The disk switching arm is set to the high position when the disk switching arm is relatively rotated.
In the disc recording medium processing apparatus of the present invention, the vertical movement mechanism is a cam mechanism.

  According to the disk recording medium processing apparatus of the present invention configured as described above, the disk switching arm having the disk abutting portion with which the outer peripheral edge of the large-diameter disk abuts is used as at least one of the first and second arms. It is provided so as to be capable of relative rotation and relative vertical movement. Then, by the vertical movement mechanism, the disk switching arm is set to the low position at the initial position where at least one of the first and second arms is not operated, and the disk switching arm is set to the high position when the disk switching arm rotates relatively. is doing. As a result, when the large-diameter disk is in contact with the disk contact portion, the disk switching arm is in the low position, so that the contact amount between the large-diameter disk and the disk contact portion can be increased. Therefore, a large-diameter disk can be stably brought into contact with the disk contact portion and pressed.

  Further, during the conveyance of the disk by the rotation of the large-diameter disk, the disk switching arm is at a high position, so that it interferes with other parts existing in the moving area of the disk switching arm below the disk switching arm. Can be prevented.

  Further, by adopting a cam mechanism as a vertical movement mechanism that moves the disk switching arm up and down relatively with respect to the second arm, the structure of the vertical movement mechanism of the disk switching arm can be configured easily and compactly. .

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram schematically and partially showing an example of an embodiment of a disk recording medium processing apparatus according to the present invention.
As shown in FIG. 1, the disk recording medium processing apparatus 1 of this example includes an apparatus main body 2. In the apparatus main body 2, a pair of first and second arms 3 and 4 are disposed in the vicinity of the disk drive position. One end 3 a of the first arm 3 is supported by the apparatus main body 2 so as to be rotatable by the rotation shaft 5, and one end 4 a of the second arm 4 is supported by the apparatus main body 2 so as to be rotatable by the rotation shaft 6. ing.

  An arcuate gear 7 having a predetermined number of external teeth 7 a is formed at one end 3 a of the first arm 3. The other end 3b of the first arm 3 is provided with a cylindrical first disk support member 3c. The outer peripheral edge of the disk inserted into the apparatus main body 2 is in contact with and supported by the first disk support member 3c.

On the other hand, as shown in FIG. 2A, an arcuate gear 8 having the same number of external teeth 8 a as the external teeth 7 a of the first arm 3 is formed at one end portion 4 a of the second arm 4. And the first arm 3
The gear 7 and the gear 8 of the second arm 4 are always meshed. Accordingly, the first arm 3 and the second arm 4 rotate in opposite directions in synchronization (interlocking). That is, the two gears 7 and 8 constitute the synchronization mechanism of the present invention.

  The first arm 3 is always urged clockwise by an urging means (not shown) such as a spring, and the second arm 4 is always urged counterclockwise. When the disk recording medium processing apparatus 1 is in an inoperative state, the first arm 3 is held at the initial position shown in FIG. 1 by a stopper means (not shown). Accordingly, the second arm 4 is also shown in FIG. It is held at the initial position shown.

  A disk switching arm support 9 is formed at the other end 4 b of the second arm 4. As shown in FIG. 3, the disc switching arm support portion 9 has a through hole 10 formed therein. An annular cam 11 is provided on the inner peripheral surface of the through hole 10. The cam 11 includes a low position portion 11a and a high position portion 11b, and an inclined portion 11c that connects the low position portion 11a and the high position portion 11b.

  In the disk switching arm support portion 9 that forms the through hole 10, a cutout portion 12 is formed by cutting out a part above the cam 11. One end of the notch is a first stopper 13.

As shown in FIG. 2B, the disk switching arm support portion 9 is provided with a disk switching arm 15 so as to be relatively rotatable. As shown in FIG. 4, the disk switching arm 15 is provided with a cylindrical second disk support member 15a. An arc-shaped cam follower 15b is provided on the outer peripheral surface of the upper end portion of the second disk support member 15a. The left end of the cam follower 15b in FIG. 4 is an inclined guide surface 15b ₁ whose arc length increases upward. Further, the disk switching arm 15 is provided with a first stopper pin 15c protruding upward and a disk contact portion 15d with which the outer periphery of a 12 cm disk contacts. Further, the disk switching arm 15 is provided with a second stopper pin 15e projecting upward in the vicinity of the second disk support member 15a.

As shown in FIG. 2 (b), the disk switching arm 15 includes a second disk support member 15a that slides in the inner hole of the annular cam 11 in both the rotational direction and the axial direction (vertical direction). It is movably penetrated from above. At this time, the outer peripheral surface of the cam follower 15b can slide relative to the inner peripheral surface of the through-hole 10 in either the rotational direction or the vertical direction. Further, the disk switching arm 15 is lightly urged counterclockwise in FIG. 2B by an urging means such as a spring (not shown). Therefore, as shown in FIG. 2B and FIG. 5A, in the initial position when the second arm 4 is not operated, the disk switching arm 15 has the second stopper pin 15e as the first of the disk switching arm support portion 9. 1 is held at a position in contact with the stopper 13. When the first and second arms 3 and 4 are at the initial positions shown in FIG. 1, the first and second disk support members 3c and 15a are set to positions for centering a small-diameter 8 cm disk to the drive position. Is done.

In this case, the small-diameter 8 cm disk can be in contact with the lower part of the second disk support member 15a than the cam follower 15b (hereinafter simply referred to as the lower part of the second disk support member 15a). It is inaccessible. On the other hand, when the second stopper pin 15e shown in FIG. 2B and FIG. 5A is in contact with the first stopper 13, when a large-diameter 12 cm disk is inserted, the disk contact portion is first inserted. The disk switching arm 15 rotates relative to the second arm 4 in the counterclockwise direction β shown in FIG. 5 (a) by pressing against the disk contact portion 15d and then pressing the disk contact section 15d. It comes into contact with the lower part of the support member 15a. When the 12 cm disk comes into contact with the lower part of the second disk support member 15a, the disk switching arm 15 stops relative rotation and is held at the position shown in FIG.

In the state where the second stopper pin 15 e is in contact with the first stopper 13, the cam follower 15 b is supported by the low position portion 11 a of the cam 11. Therefore, in this state, the disk switching arm 15 is set to the low position. At this time, the guide surface 15b ₁ of the cam follower 15b is separated or in contact with the inclined portion 11c of the cam 11, or slightly rotating direction.

On the other hand, when the disk switching arm 15 rotates relative to the second arm 4 counterclockwise β, the guide surface 15b ₁ of the cam follower 15b rides on the inclined portion 11c of the cam 11.
The disk switching arm 15 moves upward relative to the second arm 4 while rotating relatively. When the disk switching arm 15 is set to the position shown in FIG. 5C, the cam follower 15b rides on and is supported by the high position portion 11b of the cam 11. Therefore, in this state, the disk switching arm 15 is set to the high position.

  As shown in FIGS. 1 and 5A, the apparatus main body 2 is provided with a second stopper 16. In that case, the second arm 4 and the disk switching arm 15 are in the non-operating state in which the second stopper pin 15e is in contact with the first stopper 13, that is, the disk switching arm 15 is not rotated relative to the second arm 4. When integrally rotating in FIG. 5 (a) counterclockwise α, the first stopper pin 15c comes into contact with the second stopper 16 as shown in FIG. 5 (b), and the second arm 4 and the disk switching arm. Fifteen or more counterclockwise rotations α are prevented. At the position where the first stopper pin 15c is in contact with the second stopper 16, after the 8 cm disk is centered at the drive position, the second disk support member 15a is separated from the outer peripheral edge of the 8 cm disk.

  Further, the disk switching arm 15 rotates relative to the second arm 4 counterclockwise β from the state shown in FIG. 5A, and the disk switching arm 15 is set to the position shown in FIG. In this state, the first stopper pin 15c cannot be brought into contact with the second stopper 16. Thus, in this state of the disk switching arm 15, the first stopper pin 15 c does not come into contact with the second stopper 16 even if the fourth arm 4 and the disk switching arm 15 integrally rotate counterclockwise α. Therefore, the fourth arm 2 can be largely rotated counterclockwise α.

In the disk recording medium processing apparatus 1 of this example configured as described above, the first and second arms 3 and 4 are held at the initial positions shown in FIG. The disk switching arm 15 is held at a position where the second stopper pin 15 e is in contact with the first stopper 13 of the disk switching arm support portion 9. Therefore, the disc switching arm 15 is set to the low position because the cam follower 15b is supported by the low position portion 11a of the cam 11.

In this state, similarly to the previously known disk recording medium processing apparatus 1, when the disk D _S of the small diameter of 8cm is inserted into the apparatus main body 2 from the outlet preparative disc insertion not shown, as shown in FIG. 1 disk D _S is conveyed from the left by a known disc transfer means (not shown) towards the drive position to.

Disk D _S which has been conveyed in the outer peripheral edge Ds ₁ abuts the bottom of the first disk support member 3c and the second disk support member 15a of the first and second arms 3,4. In this case, the outer peripheral edge D _S1 of the small-diameter 8 cm disk D _S does not contact the disk contact portion 15d, but directly
It contacts the lower part of the disk support member 15a. Disk D _S is stopped in contact with a position in the first and second disc supporting member 3c, 15a, is centered in the drive position. At this time, since the disk switching arm 15 is set at the low position, the outer peripheral edge D _{S1 of the} disk D _S
And the amount of hooking between the second disk support member 15a and the second disk support member 15a is larger than the conventional amount. Thus, the outer peripheral edge D _S1 of the disk D _S is stably in contact with centering the second disk supporting member 15a. Then, the disk D _S is clamped by an unillustrated damper.

Thereafter, the first arm 3 is slightly rotated counterclockwise in FIG. 1 by a known arm driving means 17. Then, the second arm 4 rotates clockwise in FIG. At this time, since the disk switching arm 15 does not rotate relative to the second arm 4, the disk switching arm 15 rotates integrally with the second arm 4 while maintaining its initial position. As shown in FIG. 5B, when the first stopper pin 15c contacts the second stopper 16, the rotation of the second arm 4 and the disk switching arm 15 is stopped and the rotation of the first arm 3 is stopped. Stop. As a result, the first and second disk support members 3c, 15a of the first and second arms 3, 4 are held slightly apart from the outer periphery D _S1 of the disk D _S set at the drive position, and this outer periphery D _S1. Never touch. Thus, reproduction or recording process for the disk D _S of 8cm can be executed. When reproducing or recording process for the disk D _S of 8cm is completed, insertion of the disk D _S and centering the reverse operation is performed, the disk D _S is discharged from the apparatus main body 2. Detailed description thereof is omitted.

On the other hand, the drive in a non-operating state of the disk recording medium processing apparatus 1, when the disk D _L of the large diameter of 12cm is inserted into the apparatus main body 2 as shown in FIG. 6, the disk D _L analogously from the left It is conveyed toward the position.

The conveyed disk D _L comes into contact with the disk contact portion 15 d of the disk switching arm 15 while its outer peripheral edge D _L1 contacts the first disk support member 3 c of the first arm 3. In that case, the outer peripheral edge D _L1 of the large-diameter 12 cm disk D _L is the second disk support member 15a.
It does not touch. At this time, since the disk switching arm 15 is set to a low position to achieve many caught amount of the outer peripheral edge D _L1 and the disc contact portion 15d of the disc D _L. Thus, the outer peripheral edge D _L1 of the disk D _L abuts stably the disc contact portion 15d.

Further, when the disk _DL is transported to the right, the first arm 3 starts to rotate counterclockwise and the second arm starts to rotate clockwise synchronously. At this time, the outer periphery D _L1 of the disk D _L
And the disk contact portion 15d have a large amount of catch, so the first and second arms 3 and 4
Will surely start rotating. At the same time, since the outer peripheral edge D _L1 of the disk D _L presses the second disk support member 15a, the disk switching arm 15 rotates relative to the second arm 4 in the counterclockwise direction β shown in FIG. Start. Similarly, consists caught amount of the outer peripheral edge D _L1 and the disc contact portion 15d of the disc D _L is large, so the disk switching arm 15 starts reliably relative rotation.

When the disk switching arm 15 is relatively rotated, the cam follower 15b is moved upward relative to the cam 11, so that the disk switching arm 15 is moved upward relative to the second arm 4. When the outer peripheral edge D _L1 of the disk D _L abuts the bottom of the second disk support member 15a, relative rotation and relative upward movement of the disk switching arm 15 is stopped. At this time, the disk switching arm 15 is supported by the high position portion 11b of the cam 11 and set to the high position. Therefore, although the same extent as conventional caught amount is reduced between the outer peripheral edge D _L1 of the disk D _L and the second disk support member 15a, the first and second arms 3 and 4 has already started rotation , the contact between the outer peripheral edge D _L1 of the disk D _L and the second disk support member 15a is stable.

Further, when the outer peripheral edge D _L1 of the disk D _L is in contact with the lower part of the second disk supporting member 15a is a position where the first stopper pin 15c as shown in FIG. 5 (c) does not contact the second stopper 16 It has become. Therefore, the conveyance to further the right of the disk D _L, the first arm 3 and the second arm 4 also counterclockwise further rotated clockwise. During the rotation of the second arm 4, the disk switching arm 15 is set at a high position, so that it interferes with other parts existing in the moving area of the disk switching arm 15 below the disk switching arm 15. There is no.

When the disk _DL reaches the drive position, the disk _DL is stopped and centered at the drive position in the same manner as in the prior art. Then, the disk D _L is clamped by the clamper. Thereafter, the first arm 3 is further rotated counterclockwise in FIG. 1 by the arm driving means 17, and the second arm 4 is rotated clockwise in FIG. Thus, the first and second disc supporting member 3c of the first and second arms 3, 4, 15a is spaced from the outer peripheral edge D _L1 of the disk D _L which is set in the drive position, in contact with the outer peripheral edge D _L1 Never do. Then, the lock member 18 is operated to hold the first arm 3 at this position, and the second arm 4 is also held at this position.

At this time, the disk contact portion 15d is also separated from the outer peripheral disk D _L1 of the disk D _L , so that the disk switching arm 15 rotates relative to the second arm 4 counterclockwise. When the second stopper pin 15e comes into contact with the first stopper 13 of the disk switching arm support portion 9, the disk switching arm 15 is stopped and held at that position. Thus, reproduction or recording process for the disk D _L of 12cm can be executed. When reproducing or recording process for the disk D _L of 12cm is completed, insertion of the disk D _L and centering the reverse operation is performed, the disk D _L is discharged from the apparatus main body 2. Detailed description thereof is omitted.

According to the disk recording medium processing apparatus 1 of this example, the outer peripheral edge D _L1 of the 12 cm disk D _L.
A disk switching arm 15 having a second disk support member 15 a that supports the lower part of the disk is provided so as to move relatively upward by rotating relative to the second arm 4. Then, in the initial non-operating position of the second arm 4, the disk switching arm 15 is set to a low position, the outer peripheral edge D _L1 of the disk D _L contacts the disk contact portion 15 d, and the disk switching arm 15 is pressed. Thus, the disk switching arm 15 is set to a high position by rotating relative to the second arm 4. Thus, when the contact of the disc contact portions 15d of the disc D _L, since the disk switching arm 15 is in the low position, the contact of the disc D _L and the disc contact portion 15d (the caught amount) number it can. Therefore, it is possible to press the disk D _L stably by abutting the disc contact portion 15d.

  Since the disk switching arm 15 is at a high position during the conveyance of the disk by the rotation of the second disk 4, other parts existing in the moving area of the disk switching arm 15 below the disk switching arm 15. Can be prevented from interfering with.

  Further, as the vertical movement mechanism for moving the disk switching arm 15 relative to the second arm 4, a cam mechanism including the cam 11 and the cam follower 15 b is employed. This structure can be configured easily and compactly.

The disk recording medium processing apparatus is not limited to the above example. For example, the disk switching arm 15 can be provided on the first arm 3 side, or the first and second arms 3,
4 can also be provided. In short, various design changes can be made based on the matters described in the claims.

The disk recording medium processing apparatus according to the present invention is a disk recording medium processing that performs at least one of a reproduction process of recorded items on a disc-shaped disk recording medium such as a CD, DVD, and Blu-ray and a recording process of recorded items on the disk recording medium The apparatus can be suitably used for a disk recording medium processing apparatus including a pair of arms that can support the outer peripheral edge of a disk recording medium and can be rotated in synchronization with each other.

It is a figure showing an example of an embodiment of a disc recording medium processing device concerning the present invention typically and partially, and showing a case where an 8 cm disc is inserted. (A) is a perspective view which shows a 2nd arm, (b) is a perspective view which shows the 2nd arm in the state by which the disk switching arm was assembled | attached. It is a partial expansion perspective view which shows the other end part of the 2nd arm shown to Fig.2 (a). FIG. 3 is a partially enlarged perspective view showing a disk switching arm shown in FIG. (A) is a diagram showing the initial positions of the second arm and the disc switching arm, (b) is a diagram for explaining the operation of the second arm and the disc switching arm in the 8 cm disc, and (c) is in the 12 cm disc. It is a figure explaining the action | operation with a 2nd arm and a disk switching arm. It is a figure similar to FIG. 1 which shows the case where a 12 cm disc is inserted.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Disc recording medium processing apparatus, 2 ... Apparatus main body, 3 ... 1st arm, 3c ... 1st disk support member, 4 ... 2nd arm, 7,8 ... Gear, 11 ... Cam, 11a ... Low position part, 11b ... High position part, 11c ... Inclined part, 13 ... First stopper, 15 ... Disk switching arm, 15a ... Second disk support member, 15b ... Cam follower, 15c First stopper pin, 15d ... Disk contact part, 15e ... First 2 stopper pins, 16 ... second stopper, D _S ... 8 cm disc, D _S1 ... outer periphery of 8 cm disc, D _L ... 12 cm disc, D _L1 ... outer periphery of 12 cm disc

Claims (2)

At least a first arm that is rotated by a large-diameter and a small-diameter disk being conveyed, a second arm that is rotated by the disk, and a synchronization mechanism that synchronously rotates the first and second arms. In a disk recording medium processing device,
A disk switching arm which is provided on at least one of the first and second arms so as to be relatively rotatable and relatively movable up and down, and which has at least a disk abutting portion with which an outer peripheral edge of the large-diameter disk abuts; A vertical movement mechanism for moving the disk switching arm up and down relatively by rotating the disk switching arm relatively,
The disk switching arm has a low position where the contact amount of the outer peripheral edge of the large-diameter disk and the disk contact portion is large and a high position where the contact amount is small,
The vertical movement mechanism sets the disk switching arm to the low position at an inoperative initial position of at least one of the first and second arms, and moves the disk switching arm when the disk switching arm relatively rotates. A disk recording medium processing apparatus, wherein the disk recording medium processing apparatus is set to the high position.   The disk recording medium processing apparatus according to claim 1, wherein the vertical movement mechanism is a cam mechanism.

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