JP3442802B2 - Disk unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device for accommodating a plurality of disks and transporting a desired disk among them to a drive unit, and more particularly to a disk device having an improved floating element including the drive unit. It is about.

[0002]

2. Description of the Related Art In recent years, the demand for optical disks such as CDs, LDs and MDs has been high, and disk devices for reproducing such disks have been diversified. As an example of a diversified disk device, a disk device capable of accommodating a plurality of disks has been conventionally known.

According to this disc device, by storing a plurality of discs and then selecting a desired disc, the plurality of discs can be continuously reproduced without exchanging the discs one by one. Therefore, complicated disk replacement work is unnecessary, and it is suitable for in-vehicle use and the like.

In addition, a disk device for a vehicle or the like is generally provided with a floating element that can move freely with respect to a device case that houses the device. The floating element is an element composed of a structural member including at least a drive unit for recording / reproducing a disc. According to the disk device provided with the floating element, the floating element can move and absorb an external force applied to the drive unit during recording and reproduction of the disk. Therefore, it is possible to stabilize the recording / reproducing operation of the disc.

By the way, in the case of a disk device which accommodates a plurality of disks, the floating element may have to move beyond the floating range in order to mount a desired disk on the drive unit. For example, conventionally, there is a disk device that includes a storage unit that stores a plurality of vertically stacked discs, and a drive unit that is adjacent to the storage unit and that can be moved up and down. In the case of this disk device, in order to place the desired disk on the drive unit, it is necessary to move the floating element to a position where the desired disk and the drive unit are horizontal. At this time, if the number of disks stored is large, the moving stroke of the floating element slightly exceeds the floating range of the floating element.

In the above disk device, when the floating element moves, if the floating element remains in a floating state, there is a risk of hitting the surroundings and damaging the floating element and the disk. So, from the past,
A floating mechanism has been proposed which locks the floating element when the floating element moves to regulate its floating motion and unlocks the floating element during the recording / reproducing operation of the disk to secure the floating state of the floating element.

In a disk device having such a floating mechanism, a disk transfer means having a transfer roller for taking out a disk from a magazine and a disk player having a turntable are integrated.
The support pin is inserted into a stepped cam groove provided in a player lifting plate. The support pins slide in the stepped cam grooves by the movement of the player elevating plate, and the integrated disc conveying means and disc player are moved (elevated) in the disc accommodating direction of the magazine.

At the time of disk reproduction, the player is in a floating state with the support pin still inserted in the stepped cam groove.

[0009]

However, in the above structure, even if the player is in a floating state, the support pin for supporting the player is inserted in the stepped cam groove, so that the support pin and the step There is a risk that rattling may occur due to a slight gap between the groove and the cam groove, which may cause noise when the disc is reproduced, or may cause resonance to deteriorate sound skipping performance.

The disk device of the present invention has been proposed in view of such a current situation, and an object thereof is to provide a disk device in which noise and skipping are not generated.

[0011]

In order to achieve the above object, the present invention according to claim 1 is provided with a floating element which includes a drive unit for recording / reproducing a disk and which floats during recording / reproducing of the disk. A support pin that supports the floating element in the equipment case is provided on the floating element so that the side plate is fixed near the floating element, and the moving plate and the sub-guide plate are movably arranged adjacent to the side plate. A guide groove is provided in the side plate for slidably inserting the support pin and guiding the support pin in the moving direction. The guide groove has a first large diameter hole continuous with the guide groove. A stepped cam is formed on the moving plate to slidably insert the support pin and move the support pin; A second large-diameter hole is formed in the step-shaped cam in succession to the step-shaped cam, and an auxiliary guide groove is formed in the sub-guide plate to supplement the guide groove missing due to the formation of the first large-diameter hole. A third large-diameter hole is formed in the auxiliary guide groove of the sub-guide plate continuously with the auxiliary guide groove, and the second large-diameter hole is substantially aligned with the first large-diameter hole of the side plate by the movement of the moving plate. In addition, the first, second and third large diameter holes are arranged so that the third large diameter hole substantially coincides with the first large diameter hole by the movement of the sub guide plate.

According to a second aspect of the present invention, the support pin is provided at the end thereof with a pin-wound plate holding portion whose both ends are tapered.

According to a third aspect of the present invention, the floating element comprises a disk holder for holding the disk and a drive unit movably supported by the equipment case, and the support pin is provided on the disk holder side.
When the first large diameter hole to the third large diameter hole are substantially aligned with each other, the disc holder is connected to the drive unit.

According to a fourth aspect of the present invention, a lock member for locking the free movement of the drive unit is provided, and by the operation of the lock member when unlocking the drive unit,
A structural feature is that the lock member and the sub guide plate engage with each other so that the third large diameter hole is aligned with the first large diameter hole.

[0015]

The operation of the present invention having the above construction is as follows. That is, when the drive unit performs the recording / reproducing operation of the disc, the moving plate moves so that the second large diameter hole substantially coincides with the first large diameter hole of the side plate. Further, the movement of the sub guide plate causes the third large diameter hole to substantially coincide with the first large diameter hole. In this way, the three large diameter holes coincide. The three matching large diameter holes are formed continuously with the guide groove, stepped cam and auxiliary guide groove.
Further, since the support pins are inserted into these grooves or cams, the support pins of the floating element can be positioned within the large diameter hole by the lifting operation of the floating operation. Therefore, the support pin can move freely in the three large diameter holes.

As described above, in the present invention, the guide groove and the auxiliary guide groove guide the support pin when the stepped cam moves the support pin. Particularly, in the disk device according to the second aspect, since the plate holding portion at the end of the supporting pin holds three portions of the guide groove, the stepped cam and the auxiliary guide groove, the floating element and the above-mentioned three portions are provided.
The two plates are securely engaged with each other, and the support pin can be accurately moved. Therefore, the floating element can accurately move. Further, since the plate holding portion has a thread winding shape in which both ends are tapered, the holding portion can re-enter the guide groove, the stepped cam and the auxiliary guide groove.

In the disk device according to claim 3,
Since the support pin is provided on the disc holder side, the floating element including the disc holder can perform the moving operation while holding the disc. In addition, when the drive unit performs recording / reproducing of the disc, the first large diameter hole to the third large diameter hole are substantially aligned with each other in a state where the disk holder and the drive unit which is floatingly supported are combined, so that the support pin has three large pins. The floating element is allowed to move freely, so that the floating element can surely take a floating motion.

In the disk device according to the fourth aspect, when the floating element is allowed to float, the lock on the floating element is released by the lock member. The moving means operates in accordance with the releasing operation of the lock member. Then, the sub guide plate is moved by the operation of the moving means, and the third large diameter hole is aligned with the first large diameter hole. In this way, since the sub guide plate moves due to the releasing operation of the lock member, the member for moving the sub guide plate can be simplified.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the disk device of the present invention will be specifically described with reference to the drawings. This embodiment is applied to an MD device that reproduces an MD that is a magneto-optical disk.
The MD is a magneto-optical disk having a diameter of about 6 cm, and is rotatably housed in a thin plate-shaped cartridge C having a shutter that can be opened and closed like a floppy disk. Therefore, in this embodiment, the cartridge C
The cartridge holder for holding is equivalent to the disk holder defined in the claims of the present invention. The MD, which is a magneto-optical disk, can record information, whereas an optical disk such as a CD is read-only.
Moreover, since the disc is stored in the cartridge,
It is easier to handle than an optical disc.

Arrows X1 and X2 in the drawings indicate the depth direction of this embodiment, and arrows Y1 and Y2 indicate the height direction.
The arrow X1 side is the front side, the arrow X2 side is the rear side, the arrow Y1 side is the lower side, the arrow Y2 side is the upper side, the arrow X1 direction is the forward direction, the arrow X2 direction is the backward direction, the arrow Y1 direction is the downward direction, and the arrow Y2. Let the direction be the ascending direction.

[Structure of this Embodiment] (1) Equipment Case 1 and Main Parts of This Embodiment The equipment case 1 of this embodiment and the main parts of this embodiment will be described with reference to FIGS. The device case 1 is a rectangular parallelepiped case having a front surface portion, a rear surface portion, a top surface portion, a bottom surface portion, and left and right side surface portions. An insertion opening 2 into which the cartridge C can be inserted is formed near the upper edge of the front surface of the device case 1. A dustproof door 2A for preventing foreign matter from entering the apparatus is attached to the insertion opening 2 so as to be openable and closable. Further, a detection switch 50S for detecting the insertion of the cartridge C is provided on the inner side of the insertion port 2.

The main part of this embodiment comprises three members housed in the equipment case 1, a cartridge holder 3, a drive unit 4 and a stocker 5. The cartridge holder 3 is arranged at the inner side of the insertion slot 2 so as to be able to move up and down.
The cartridge holder 3 has an upper surface portion and a lower surface portion that are parallel to each other, and holds the cartridge C with the recording surface of the MD facing downward in the gap between both surface portions. Cartridge holder 3
Two transport rollers 3B that are in contact with the cartridge C are rotatably provided on the upper surface of the.

The drive unit 4 is arranged below the cartridge holder 3 so as to face the cartridge holder 3. The drive unit 4 is movably attached to the device case 1 by a damper and a vibration-proof spring (not shown). The drive unit 4 is provided with a turntable, a pickup unit, etc., and mounts the cartridge C thereon to reproduce the information recorded in the MD. Also, drive unit 4
Is provided with a detection switch 55S that detects that the cartridge C is placed.

The stocker 5 is arranged so as to be movable up and down further than the disc holder 3 as viewed from the insertion slot 2. The stocker 5 is a rectangular parallelepiped case in which four storage units 51a to 54a are vertically stacked. Storage parts 51a to 54a
An opening portion into which the cartridge C can be inserted is formed on the front side, and a space in which the cartridge C can be horizontally accommodated is provided behind the opening portion. Each storage section 51a-5
4a is provided with detection switches 51S to 54S for detecting that the cartridge C is housed, and pushing means (not shown) for pushing the cartridge C forward.

(2) Mechanism for Elevating Cartridge Holder 3 and Stocker 5 In this embodiment, a mechanism for elevating the cartridge holder 3 and stocker 5 is provided. Hereinafter, this mechanism will be described with reference to FIGS. First, the members arranged above the cam gear 6 will be described with reference to FIGS. 6 and 7.

The cam gear 6 has a support shaft 6 on the bottom surface of the equipment case 1.
It is rotatably provided around a. A drive motor 7 is fixed to the bottom surface of the device case 1. The drive motor 7 is provided with a drive shaft extending leftward, and a worm gear 8 is attached to the drive shaft. Further, transmission gears 9A and 9B meshing with each other are provided on the bottom surface of the equipment case 1 so as to be rotatable around a support shaft. Transmission gear 9A
The worm gear 8 meshes with the cam gear 6 and the transmission gear 9B meshes with the cam gear 6.

A substantially diamond-shaped elevator drive link 10 is arranged on the upper surface side of the cam gear 6. The elevator drive link 10 is rotatably attached to the support shaft of the transmission gear 9B. An engaging pin 10a protruding upward is provided at the right end of the elevator drive link 10. An arc-shaped guide hole 10b is formed in the center of the elevator drive link 10. This guide hole 10
The support shaft 6a of the cam gear 6 is inserted through b. A cam follower 13 is provided on the elevator drive link 10 so as to project downward.

An upper surface cam groove 6α is provided on the upper surface of the cam gear 6. The plan view of the upper surface cam groove 6α is shown in FIG.
It shows in (A). The upper surface cam groove 6α is a right-handed spiral groove. The cam follower 13 is inserted into the upper surface cam groove 6α.

An elevator drive plate 11 is arranged on the upper surface side of the elevator drive link 10.
The elevator drive plate 11 is a substantially spindle-shaped plate having a substantially circular center portion and arm portions extending left and right in the figure. The center portion of the elevator drive plate 11 is rotatably attached to the support shaft 6 a of the cam gear 6. An engagement hole 11a is formed near the center of the arm portion of the elevator drive plate 11 extending to the right in the figure. The engaging pin 10a of the elevator drive link 10 is inserted into the engaging hole 11a.

Although not shown, four switches are provided on the bottom surface of the equipment case 1 along the locus of the end when the elevator drive plate 11 rotates. This switch is for passing elevator drive plate 1
1, the end of 1 is detected and the elevator drive plate 11
The rotation position of is detected.

At the left and right ends of the elevator drive plate 11, operation pins 14L and 14R are provided so as to project upward. Elevator plates 12L and 12R are attached to these operation pins 14L and 14R. Subsequently, referring to FIGS. 9 to 11, the elevator plate 12
The L and 12R will be described. FIG. 9 is a side view showing the elevator plate 12L and members adjacent thereto, and FIG.
Is a side view showing the elevator plate 12R and members adjacent thereto, and FIG. 11 is the elevator plates 12L, 12
FIG. 3 is a plan view of R, the cartridge holder 3, and a stocker 5.

The elevator plates 12L and 12R are arranged inside the side plates 1L and 1R so as to be slidable in the front-rear direction. The side plates 1L and 1R are plates that form the left and right side surfaces of the device case 1. As shown in FIGS. 9 and 10, the side plates 1L and 1R are provided with guide pins 1a protruding inward, and the elevator plates 12L and 12R are provided with the guide pins 1a.
Is provided with a guide groove 12a through which is slidably inserted.

By the way, the cartridge holder 3 and the stocker 5 are provided with holder pins 3A and stocker pins 5A projecting outward (see FIG. 11). Holder pin 3
One A is provided on the left side edge of the cartridge holder 3, and two A are provided on the right side edge. Further, one stocker pin 5A is provided on the left side edge of the stocker 5, and one stocker pin 5A is provided on the right side edge.

As shown in FIG. 9, a longitudinal guide groove 1c is formed in the side plate 1L, and a holder cam 12A, which is a step-like groove, is formed in the elevator plate 12L. Further, as shown in FIG. 10, the vertically elongated guide grooves 1c, 1c are provided on the side plate 1R, and
Holder cam 12B (front side), which is a stepped cam, 1
2C (back side) is formed. The holder pin 3A is attached to the guide groove 1c and the holder cams 12A, 12B and 12C.
Is inserted. The holder pin 3A is laterally held by the guide groove 1c, and the holder cams 12A, 12B, 12
It is held vertically by C.

The holder cams 12A, 12B, 12C are inclined with five step portions from the uppermost portion to the lowermost portion.
The holder cam 12A on the elevator plate 12L side is inclined so that the front side becomes lower,
The holder cams 12B and 12C on the R side are inclined so that the rear side is lowered. Holder cams 12A, 12B, 12
# 1 to # 4 for each step from the top of C to the 4th step from the top
(Indicated by circled numbers in the figure). Holder cam 12
The lowest row of A, 12B, and 12C is #S (indicated by circled letters in the figure). The horizontal dimension of #S is # 1
It is set slightly longer than that of # 4.

At the lower ends of the above-mentioned three guide grooves 1c, circular first large diameter holes 15A, 15 are formed continuously with the guide groove 1c.
B and 15C are formed. These first large diameter holes 15
The sizes of A, 15B and 15C are set so as to include the range in which the drive unit 4 floats.

A second large-diameter hole 16A is formed continuously on the front side of the lowermost portion of the holder cam 12A.
The second large-diameter hole 1 is continuous to the bottom of 2B and 12C and is on the back side.
6B and 16C are formed. 2nd large hole 16A, 1
6B and 16C are the first large diameter holes 15A, 15B and 15C.
Is almost the same size and shape. First large diameter holes 15A, 15B,
Positions within 15C and the second large diameter holes 16A, 16B, 16C are designated as #P (indicated by circled letters in the drawing).

As shown in FIGS. 9 and 10, the side plates 1L and 1R are provided with substantially elliptical holding grooves 1b. A stocker cam 12D is formed on the elevator plate 12L, and a stocker cam 12E is formed on the elevator plate 12R. The holding groove 1b
And stocker pins 5A on the stocker cams 12D and 12E
Is inserted. The stocker pin 5A is held laterally by the holding groove 1b, and vertically held by the stocker cams 12D and 12E.

The stocker cams 12D and 12E are crank-shaped grooves having an upper step portion and a lower step portion. The rear side of the stocker cam 12D on the elevator plate 12L side is the lower step portion, and the front side of the stocker cam 12E on the elevator plate 12R side is the lower step portion. Cam 12 for stocker
The upper part of D and 12E is #U, and the stocker cam 12
The lower part of D and 12E is designated as #D. In addition, a guide pin (not shown) is provided on the back surface of the stocker 5 so as to project inward, and the guide pin is inserted into a guide groove (not shown) formed on the back surface of the equipment case 1. It

The position of the holder pin 3A on the holder cams 12A, 12B and 12C and the stocker cams 12D,
The correspondence with the position of the stocker pin 5 in 12E is as follows. When the holder pin 3A is located at # 1 to # 3, the stocker pin 5A is located at #D. When the holder pin 3A is located at # 4, #S, #P, the stocker pin 5A is located at #U. 9 and 10, inside the stocker cams 12D and 12E, circled numbers from 1 to 4 and letters surrounded by circles correspond to the positions on the holder cams 12A, 12B and 12C. showed that.

(3) Floating Mechanism The drive unit 4 of this embodiment is in a floating state only during MD reproduction, and is fixed and locked in the device case 1 when the cartridge C is stored. Therefore, in this embodiment, a floating mechanism for locking and unlocking the drive unit 4 is provided. The floating mechanism will be described below with reference to FIGS. 12 and 13.

Lock arms 17A, 17B and 17C are provided on the lower surface side of the cam gear 6 (shown by the dotted line). The lock arms 17A, 17B, 17C are all
It is rotatably attached to the bottom surface of the equipment case 1 about a support shaft provided near the center. A connecting pin 17a is provided at the right end of the lock arm 17A, and an engaging hole 17b is provided at the left end thereof. Lock arm 17
A dogleg-shaped cam hole 17d is formed near the left end of A. A cam follower 18 is provided on the lock arm 17A.
Is provided so as to project upward.

By the way, the lower surface of the cam gear 6 is provided with a lower surface cam groove 6β. The plane shape of the lower surface cam groove 6β is shown in FIG. The lower surface cam groove 6β is a right-handed spiral groove. The cam follower 18 is inserted into the lower cam groove 6β.
Has been inserted.

A lock arm 17B is arranged adjacent to the front side of the lock arm 17A. Lock arm 17
An engaging pin 17e is provided at the left end of B in the figure.
The engagement pin 17e is provided in the cam hole 17 of the lock arm 17A.
inserted in d. Further, a lock claw 20B is formed on the front side edge of the lock arm 17B so as to project to the front side.

A lock arm 17C is arranged adjacent to the right side of the lock arm 17A. Lock arm 17C
Has a connecting hole 17f at the left end and an engaging hole 17g at the right end.
Are provided respectively. The connecting pin 17a of the lock arm 17A is inserted into the connecting hole 17f.

A lock plate 19LA is arranged adjacent to the left side of the lock arm 17A. A connecting pin 19a is provided at the rear end of the lock plate 19LA so as to project upward, and the connecting pin 19a is inserted into the engaging hole 17b of the lock arm 17A. The lock plate 19LA is a plate that is long in the front-rear direction. The lock plate 19LA is arranged inside the side plate 1L so as to be movable back and forth. A connecting pin 19b is provided at the front end of the lock plate 19LA. A pressing pin 19c is provided near the front end of the lock plate 19LA so as to project outward.

A lock plate 19R is arranged adjacent to the right side of the lock arm 17C. Lock plate 1
A connecting pin 19d is provided at the rear end of 9R so as to project upward, and the connecting pin 19d is provided on the lock arm 17a.
It is inserted in the engagement hole 17g of C. Lock plate 1
9R is a plate that is long in the front-rear direction. The lock plate 19R is arranged inside the side plate 1R so as to be movable back and forth. The lock plate 19R has a pressing pin 19e.
Is provided. A lock claw 20R is formed at the front end of the lock plate 19R so as to project leftward.

The lock plate 19LB is arranged near the front side of the lock plate 19LA. The lock plate 19LB is rotatably attached to the bottom surface of the device case 1. The lock plate 19LB is a substantially right-angled triangular plate, and is configured to rotate about a support shaft provided at a right angle portion. Lock plate 19LB
A notch 19f is formed at the apex on the back side of the and a notch 19g is formed at the apex on the front side. The connecting pin 19b of the lock plate 19LA is inserted into the cutout 19f.

A lock plate 19LC is provided adjacent to the lock plate 19LB. Lock plate 1
9LC is attached to the front edge of the bottom of the device case 1 so as to be movable in the left-right direction. Lock plate 19L
A connecting pin 19h is provided at the left end of C. The connecting pin 19h is inserted into the cutout 19g of the lock plate 19LB. Further, a lock claw 20L is formed in the center of the lock plate 19LC so as to project inward. A pressing portion 19i is provided at the rear end of the lock claw 20L.

When the floating mechanism locks the drive unit 4, the lock claw 20B of the lock arm 17B, the lock claw 20R of the lock plate 19R and the lock claw 20L of the lock plate 19LC are inserted into the notch 4A of the drive unit 4. . Although not shown, the notch 4A into which the lock claws 20L and 20R are inserted is formed with a taper portion so as to push down the drive unit 4 when the lock claws 20L and 20R are inserted.

(4) Connecting Means This embodiment is provided with a connecting means for connecting the cartridge holder 3 and the drive unit 4. In this embodiment, the connecting operation of the cartridge holder 3 and the drive unit 4 is performed by the connecting means when reproducing the MD.
Therefore, the floating element in this embodiment is composed of the cartridge holder 3 and the drive unit 4. The connecting means includes a guide means and a pressing means. The guide means is a means for positioning both the disk holder 3 and the drive unit 4, and the pressing means is a means for pressing in a direction in which they are connected.

FIG. 14 shows the connecting means of this embodiment.
~ It demonstrates with reference to FIG. The main members of the connecting means are chucking plates 25L and 25R. 14 is a plan view showing the chucking plate 25L, and FIG. 15 is FIG.
4 is a left side view, and FIG. 16 is a right side view showing the chucking plate 25R.

As shown in FIG. 14, the drive unit 4
A chucking plate 25L, which is long in the front-rear direction, is rotatably attached to the support shaft 25a. The pressed portion 25b is provided at the front end of the chucking plate 25L.
Are provided so as to project downward. A connecting roller 25c is provided on the back end of the chucking plate 25L so as to be vertically rotatable.

One end of a chucking plate spring 26L is attached to the left side edge of the chucking plate 25L. Chucking plate spring 2
The other end of 6L is attached to the upper surface of the drive unit 4. Therefore, in the chucking plate 25L, the connecting roller 25c is urged in the front direction by the chucking plate spring 26L.

As shown in FIG. 15, the cartridge holder 3 is provided at its left edge with a connecting portion 3C projecting downward. The V-shaped groove 3 cut in the front side of the connecting portion 3C
D is formed. The connecting roller 25c of the chucking plate 25L is fitted into the V groove 3D.

As shown in FIG. 16, the chucking plate 25R is rotatably attached to the right edge of the drive unit 4. A pressed portion 25d is provided on the front edge of the chucking plate 25R. The pressed portion 25d is provided on the inner side of the cutout 4A on the right side edge of the drive unit 4 and is pressed by the lock claw 20R formed on the lock plate 19R. A connecting claw 25e is provided at the tip of the chucking plate 25R. The connecting claw 25e and the V groove portion 3D correspond to the pressing means of the connecting means.

Further, a connecting portion 4B is provided at the right edge portion of the drive unit 4 so as to project upward, and a guide groove 4C cut downward is formed therein. The holder pin 3A on the front side of the right side edge portion of the cartridge holder 3 is inserted into the guide groove 4C. The guide groove 4C and the holder pin 3A correspond to the guide means of the connecting means. The connecting claw 25e of the chucking plate 25R is a holder pin 3 inserted into the guide groove 4C.
It is configured to press A from above.

One end of a chucking plate spring 26R is attached to the front edge of the chucking plate 25R. Chucking plate spring 26
The other end of R is attached to the right edge of the drive unit 4. Therefore, the chucking plate 25R is biased toward the front side by the chucking plate spring 26R.

(5) Sub guide plates 22L, 22R
By the way, the guide grooves 1c of the side plates 1L and 1R are operated.
Has the first large diameter holes 15A, 15B and 15C at the lower end, the lower end is missing as a groove for guiding the holder pin 3A. Therefore, the first large diameter holes 15A, 15
B and 15C cannot hold the holder pin 3A from the lateral direction. Therefore, in this embodiment, the sub guide plates 22L and 22R are provided. The sub guide plates 22L and 22R are plates provided with a sub guide groove 22a for compensating for the missing portion of the guide groove 1c.

Hereinafter, the sub guide plates 22L and 22R
A mechanism for operating will be described with reference to FIGS. 17 and 18 show the sub guide plate 22.
FIG. 21 is a side view of a mechanism for operating L, and FIGS.
FIG. 7 is a side view of a mechanism for operating the sub guide plate 22R.

As shown in FIGS. 17 and 18, a sub guide link 21L is rotatably attached to the outside of the side plate 1L. This sub guide link 21L
A substantially square-shaped sub guide plate 22L is vertically movable between the side plate 1L and the side plate 1L.

Further, as shown in FIGS. 19 and 20, a sub guide link 21R is rotatably attached to the outside of the side plate 1R. This sub guide link 2
A rectangular sub guide plate 22R is mounted between the 1R and the side plate 1R so as to be vertically movable.

U-shaped holding portions 21a are formed at the tips of the sub-guide links 21L and 21R. A pressed portion 21b is provided at the base end portions of the sub guide links 21L and 21R. The pressed pins 21c and 1 of the lock plates 19LA and 19R are attached to the pressed portion 21b from the back side.
9e abuts.

One end portions of sub guide plate springs 23L and 23R are attached to the sub guide plates 22L and 22R. Sub guide plate spring 2
The other ends of 3L and 23R are attached to the upper edges of the side plates 1L and 1R. Therefore, the sub guide plates 22L and 22R are the sub guide plate springs 2
It is urged upward by 3L and 23R. In addition, an engagement pin 22b is provided substantially at the center of the lower edge of the sub guide plates 22L and 22R. The engagement pin 22b is held by the holding portions 21a of the sub guide links 21L and 21R.

One sub guide groove 22a is formed in the sub guide plate 22L, and two auxiliary guide grooves 22a are formed in the sub guide plate 22R. These auxiliary guide grooves 22a are on the same straight line as the guide grooves 1c of the side plates 1L and 1R (enclosed by diagonal lines and shown), and the holder pin 3A is inserted therethrough. In addition, each auxiliary guide groove 22
Third large-diameter holes 24A, 24B, 24C are continuously formed at the upper end of a. The third large diameter holes 24A are the first large diameter holes 15A, 15B, 1 in the side plates 1L, 1R.
5C (enclosed by hatching), elevator plate 12
Second large diameter holes 16A, 16B, 16C in L, 12R
Is almost the same size and shape.

[Operation of this Embodiment] With regard to the operation of this embodiment having the above-mentioned configuration, referring to the flow charts shown in FIGS. 21 and 22,
First, the standby state of the main part, the storing operation of the cartridge C, the connecting operation / separating operation of the cartridge holder 3 and the drive unit 4, and the unlocking operation / locking operation of the drive unit 4 will be sequentially described. The flowchart of FIG. 22 shows the stock mode in which the cartridge C is stored, and the flowchart of FIG.
2 shows a play mode in which MD reproduction is performed with the connection operation between the drive unit 4 and the drive unit 4 and the lock release operation of the drive unit 4.

[A. Standby state of main part ... See FIG. 1] A- Standby state of cartridge holder 3 and stocker 5 When the cartridge holder 3 does not store the cartridge C or when the cartridge C is to be inserted, the holder pin 3A of the cartridge holder 3 Is located at # 1 of the holder cams 12A, 12B, 12C, and the cartridge holder 3 is the storage unit 5 in the first stage from the top of the stocker 5.
It is located at a position corresponding to 1a. Also, the holder pin 3A is #
When it is in position 1, the pin 5A has the stocker cams 12D, 1
Since it is located at #D of 2E, the stocker 5 is in the lowered position. The dustproof door 2A is closed when the cartridge holder 3 is in the standby state.

A-Standby state of drive unit 4 When the cartridge holder 3 and the stocker 5 are on standby, the drive unit 4 is also in the standby state. At this time, as shown in FIG. 12, the lock claws 20B, 20L, 2
0R enters the notch A of the drive unit 4, and the drive unit 4 is locked. While the drive unit 4 is in the locked state, the lock claws 20L and 20R push down the tapered portion of the notch 4A, so that the drive unit 4 is in contact with the bottom surface of the device case 1 against the elastic force of the damper and the vibration-proof spring.

[B. Storage operation of the cartridge C ... Fig. 21
Flowchart of B] Inserting Operation into Cartridge Holder 3 When inserting the cartridge C into the cartridge holder 3, first, a predetermined switch is operated to issue a stock command (step 1). At this time, the cartridge holder 3 is in a standby state (step 2), the dustproof door 2A is opened, and the cartridge C is inserted into the cartridge holder 3 from here (step 3). ... The state shown in FIG.

Then, in step 4, the detection switch 50
Whether or not S is detected is determined. When the detection switch 50S detects the inserted cartridge C (step 4),
The transport roller 3B is driven to store the cartridge C in the cartridge holder 3 (step 5), and the cartridge C is completely stored. ... The state shown in FIG. Then, the dustproof door 2A is closed.

Next, at step 6, it is judged whether or not there is a stock command. If there is no stock command, the mode shifts to the play mode, and if there is a stock command, the storage operation (step 7) shifts.

B- Storage operation of the cartridge C in the stocker 5 In step 7, it is determined whether or not the detection switch 51S is detected. When the detection switch 51S is off, the cartridge C is stored in the first-stage storage portion 51a (step 8). In this case, the holder pin 3A is attached to the holder cam 12
Since it is located at # 1 of A, 12B, and 12C, the cartridge C held by the cartridge holder 3 and the opening of the storage portion 51a are opposed to each other, and the conveyance roller 3B does not move without moving the cartridge holder 3 downward. The cartridge C is driven to be stored in the storage portion 51a. ... The state shown in FIG.

On the other hand, if the detection switch 51S is turned on, it is determined that the cartridge C is already stored in the first-stage storage portion 51a, and the process proceeds to step 9. In steps 9 to 11, the detection switches 52S to 54S detect whether or not there is the cartridge C in the storage portions 52a to 54a of the stocker 5. At this time, when the switches 52S to 54S are turned on, the cartridge C is stored in the storage portions 52a to 54a.
It is judged that it has already been stored in, and the process proceeds to the next step. That is, if the switch 52S is on, the process proceeds from step 9 to step 10, if the switch 53S is on, the process proceeds from step 10 to step 11, and if the switch 54S is on, the process proceeds from step 11 to the play mode.

Further, the detection switches 52S, 53S, 54
When S is off, the cartridge C is stored in the storage section 52a-
It is determined that the cartridge holder 3 is not yet accommodated in the cartridge 54a, and the cartridge holder 3 is lowered to a position facing the containers 52a to 54a (steps 12, 14, 16). Then, when the lowering operation is completed, the transport roller 3B is driven to store the cartridge C in the storage portions 52a to 54a (step 1).
3, 15, 17).

B- Lowering Operation of Cartridge Holder 3 Here, the lowering operation of the cartridge holder 3 will be described in detail. When the cartridge holder 3 moves downward, the drive motor 7 drives to rotate the worm gear 8,
The transmission gear 9A rotates counterclockwise, the transmission gear 9B rotates counterclockwise, and the cam gear 6 rotates counterclockwise. … From Figure 6 to Figure 7.

Since the cam follower 13 of the elevator drive link 10 is provided in the upper surface cam groove 6α of the cam gear 6, when the upper surface cam groove 6α rotates counterclockwise together with the cam gear 6, the cam follower 13 rotates clockwise. .

Therefore, the elevator drive link 10 and the elevator drive plate 11 rotate clockwise. Therefore, the operation pin 14L moves backward, and the operation pin 14R moves forward. As a result, the elevator plate 12
L is pushed back by the operating pin 14L, and the elevator plate 12R is pushed forward by the operating pin 14R. At this time, the guide pin 1a fits into the guide groove 12a and the guide groove 12
Since the guide pin 1a slides on b, the elevator plates 12L and 12R are highly accurate.
It moves back and forth linearly along R.

Since the holder cam 12A on the elevator plate 12L side is lower on the front side, the forward movement of the elevator plate 12L causes the holder pin 3A inserted into the holder cam 12A to move into the guide groove 1c of the side plate 1L. Descend along. On the other hand, since the holder cams 12B and 12C on the side of the elevator plate 12R are lower on the rear side, the holder pins 3A and 3A inserted into the holder cams 12B and 12C are moved to the side plates when the elevator plate 12R retracts. 1R guide groove 1
It descends along c and 1c.

The cartridge holder 3 descends in the vertical direction, and the holder pin 3A moves to the # of the cams 12A, 12B and 12C.
The cartridge holder 3 is located at positions 2 to # 4.
The cartridge C held by is lowered to a position facing the openings of the storage portions 52a to 54a.

When the holder pin 3A is positioned at # 1 to # 4, the control for stopping the rotation of the cam gear 6 is performed by four switches provided along the locus of the end when the elevator drive plate 11 rotates. Is going. That is, the four switches are the positions of the holder pin 3A # 1.
Corresponding to # 4, the switch detects the end of the elevator drive plate 11 and detects the rotational position of the elevator drive plate 11, thereby sending a stop signal to the drive motor 7 to rotate the cam gear 6. Control the timing of the stop.

When the rotation of the cam gear 6 is stopped and the forward / backward movement of the elevator plates 12L, 12R is stopped, the holder cams 12A, 12B, 12C hold the holder pin 3A from the vertical direction and the guide grooves of the side plates 1L, 1R. 1
c and the auxiliary guide grooves 22a of the sub guide plates 22L and 22R hold the holder pin 3A from the lateral direction.
That is, the holder pin 3A is reliably held in the vertical direction and the horizontal direction.

Therefore, the holder pin 3A does not inadvertently shake due to external vibration, and the regulation force on the cartridge holder 3 is strong. Therefore, the cartridge C can be reliably and safely transported to the storage sections 51a to 54a by driving the transport roller 3C.

B- Lifting operation of the cartridge holder 3 When the cartridge C is stored in the stocker 5 and then another cartridge C is inserted, the cartridge holder 3 is inserted into the insertion opening 2
Ascend to a position opposite. Alternatively, when the cartridge C is returned to the original storage portion after the reproduction of the MD is completed, the cartridge holder 3 also moves up. Here, the raising operation of the cartridge holder 3 will be described.

When the cartridge holder 3 moves up, the drive motor 7 is driven to rotate the worm gear 8,
The transmission gear 9A rotates clockwise, the transmission gear 9B rotates counterclockwise, and the cam gear 6 rotates clockwise. … From FIG. 7 to FIG.

Since the cam follower 13 of the elevator drive link 10 is contained in the upper surface cam groove 6α of the cam gear 6, when the upper surface cam groove 6α rotates counterclockwise,
The cam follower 13 moves counterclockwise and the elevator drive link 10 rotates counterclockwise. Therefore, the engagement pin 10a pushes the engagement hole 11a of the elevator drive plate 11, and the elevator drive plate 11 also rotates counterclockwise.

Therefore, the elevator drive plate 11
In, the operation pin 14L moves forward and the operation pin 14R moves backward. Elevator plate 12L is operating pin 14L
The elevator plate 12R is pushed forward by the operating pin 14R and pushed backward by the operating pin 14R. At this time, in the elevator plates 12L and 12R, the guide pin 1a is inserted into the guide groove 12
The guide pin 1a slides in the guide groove 12a. Therefore, the elevator plates 12L and 12R linearly move back and forth along the side plates 1L and 1R with high accuracy.

Since the holder cam 12A on the side of the elevator plate 12L is higher on the rear side, the holder pin 3A inserted into the holder cam 12A is moved forward by the elevator plate 12L so that the guide pin 1c of the side plate 1L. Rises along. On the other hand, since the holder cams 12B and 12C on the elevator plate 12R side are higher on the front side, the holder pins 3A and 3A inserted into the holder cams 12B and 12C move side plates when the elevator plate 12R retracts. 1R guide groove 1
Ascends along c and 1c.

The above-mentioned raising / lowering operation of the cartridge holder 3 is performed by a total of three holder pins 3 including one on the left side and two on the right side.
Since it can be carried out by supporting it from three points by A, it can be carried out in a state in which the horizontal state of the cartridge holder 3 is secured. Further, the raising / lowering operation of the cartridge holder 3 is performed when the desired cartridge C is pulled out from the stocker 5 to the cartridge holder 3 and conveyed to the drive unit 4 while holding the cartridge C, or when the reproduction of the MD in the cartridge is completed. It is also carried out when it is conveyed to the original storage part of 5 or the insertion port 2.

B-Storing operation in stocker 5 accompanied by lifting operation of stocker 5 As shown in FIG. 4, when the cartridge C is stored in the storage section 54a of the fourth stage of the stocker 5, the holder pin of the cartridge holder 3 is held. 3A is a holder cam 12A,
It descends to # 4 of 12B and 12C. At this time, since the holder pin 3A has moved to # 4, the stocker pin 5A moves from #D to #U of the cams 12D and 12E. Therefore, the stocker 5 rises along the holding groove 1b. In this way, the holder pin 3A descends to # 4, and the stocker 5
For the first time, the cartridge C held by the cartridge holder 3 and the storage portion 54a face each other by rising.

Further, since the stocker 5 can be lifted and lowered, it can be supported from three points by a total of three pins including the left and right stocker pins 5A and the back-side guide pins (not shown). Similarly to the above, it can be performed in a state where the horizontal state is secured. Similar to the cartridge holder 3, a total of three or more pins may be provided on the left and right of the stocker 5 and these pins may be moved up and down.

B-Mounting operation on drive unit 4 Detection switch 5 of each storage section 51a to 54a of stocker 5
After detecting that all of the cartridges 1S to 54S have stored the cartridge C, when the cartridge C is inserted into the cartridge holder 3 from the insertion opening 2 or the play button is pressed and the cartridge in the stocker 5 is stored in the cartridge holder 3. In this case, in the cartridge holder 3, the holder pin 3A is automatically lowered to #S which is the lowest stage of the holder cams 2A, 12B and 12C.

When the holder pin 3A is located at #S, the cartridge holder 3 and the drive unit 4 are in a position where the connecting operation is possible. Therefore, the cartridge holder 3 holding the cartridge C can be mounted on the drive unit 4 by performing a connecting operation as described below between the cartridge holder 3 and the drive unit 4.
Therefore, in this embodiment, it is possible to store a total of five cartridges, four cartridges in the stocker 5 and one cartridge on the drive unit 4.

When the holder pin 3A is located at #S, if the rotation of the cam gear 6 is stopped and the elevator plates 12L and 12R are stopped from moving back and forth, the holder pin 3
A passes through the guide grooves 1c of the side plates 1L and 1R and enters the area of the first large diameter holes 15A, 15B and 15C. Therefore, the holder pin 3A is attached to the holder cam 12
It is held by A, 12B, and 12C in the vertical direction, but is not held by the guide groove 1c.

However, at this time, as shown in FIGS. 17 and 19, the sub guide plates 22L and 22R are in the raised position, and the auxiliary guide groove 22a holds the holder pin 3A from the lateral direction. That is, the holder pin 3A is #S
However, similarly to # 1 to # 4, there is no change in that it is securely held from the vertical direction and the horizontal direction. Therefore, with the holder pin 3A positioned at #S, the cartridge holder 3
Even if external vibration is applied to the cartridge holder 3
There is no risk of misalignment or damage to the cartridge C.

[C. 22. Connection / Disconnection between Cartridge Holder 3 and Drive Unit 4 ... See Flowchart in FIG. 22] When the present embodiment shifts to the play mode, the cartridge holder 3 is first lowered (step 18), and then the detection switch 55S is set to the drive unit 4. When the mounted cartridge C is detected (step 19) and the switch 55S is turned on, the cartridge holder 3 and the drive unit 4 are
(Step 20).

When the connecting means of the present embodiment performs the operation of connecting the cartridge holder 3 and the drive unit 4,
The cam gear 6 rotates counterclockwise, the rotation of the upper surface cam groove 6α at this time causes the elevator plate 12L to retract, the elevator plate 12R to move forward, and the holder pin 3A to move to the lowermost stage of the holder cams 12A, 12B, 12C. #S, and the cartridge holder 3 descends most.

C-Path for holding the cartridge C to the cartridge holder 3 The lowering operation of the cartridge holder 3 is performed in the state where the cartridge holder 3 holds the cartridge C. As a path for holding the cartridge C in the cartridge holder 3, there are a path for directly holding the cartridge C inserted from the insertion opening 2 and a path for holding the cartridge C pulled out from the storage portions 51a to 54a of the stocker 5. In the latter case, the pushing means (not shown) provided in the stocker 5 stores the cartridge C in the storage portions 51a to 54a.
The cartridge C is pushed out in the discharging direction from the above, and the cartridge C is brought into contact with the conveying roller 3C. Then, the transport roller 3C is driven to pull out the cartridge C from the stocker 5 and transport it into the cartridge holder 3.

C-Lock plate 19LC, 19R
12 ... The cam gear 6 is rotating in the counterclockwise direction when the cartridge holder 3 is descending in order to connect to the drive unit 4 from FIG. 12 to FIG. 13, but at this time, the lower surface cam groove 6β is also rotated counterclockwise. Rotate in the direction. When the lower surface cam groove 6β rotates in the counterclockwise direction, the cam follower 18 moves to the inner side, and the lock arm 17A rotates in the counterclockwise direction. for that reason,
The connecting pin 17a of the lock arm 17A retracts, and the engagement hole 17b advances.

When the connecting pin 17a of the lock arm 17A is retracted, the lock arm 1 is inserted into the connecting pin 17a.
The connecting hole 17f of 7C also retreats, and the lock arm 17C rotates clockwise. Therefore, the lock arm 17C
The engaging hole 17g moves forward, the connecting pin 19d inserted in the engaging hole 17g moves forward, and the lock plate 19R moves forward. Further, as the engaging hole 17b of the lock arm 17A advances, the connecting pin 19a (back side) inserted in the engaging hole 17b advances, and the lock plate 19LA advances.

Therefore, the connecting pin 19b (front side) of the lock plate 19LA advances, the connecting pin 19b pushes the notch 19f toward the front side, and the lock plate 19LB rotates counterclockwise. Therefore, the lock plate 19L
The notch 19g of B moves to the right, and the notch 19g pushes the connecting pin 19h of the lock plate 19LC to the right. As a result, the lock plate 19LC moves to the right.

C-Chucking plate 25L, 2
5R rotation operation When the lock plate 19LC moves to the right, before the lock claw 20L is completely separated from the notch 4A of the drive unit 4, the pressing portion 19i of the lock plate 19LC is the chucking plate 25 provided on the drive unit 4.
It moves away from the pressed portion 25b of L. Therefore, the chucking plate 25L is the chucking plate spring 2
The elastic force of 6 L rotates counterclockwise, and the connecting roller 25c is fitted into the V groove portion 3D of the cartridge holder 3 (see FIGS. 14 and 15). At this time, the drive unit 4 is pressed against the side of the cartridge holder 3 by fitting the connecting roller 25c into the V groove portion 3D which is a pressing means.

When the lock plate 19R advances, the lock claw 20R separates from the pressed portion 25d of the chucking plate 25R provided in the drive unit 4 before the lock claw 20R completely separates from the notch 4A of the drive unit 4. . Therefore, the chucking plate 25R is rotated by the elastic force of the chucking plate spring 26R, and the connecting claw 25e is moved to the cartridge holder 3
The holder pin 3A on the right side edge of is pressed from above.

At this time, the connecting claw 25e, which is a pressing means, pushes down the holder pin 3A, and the drive unit 4 is pressed against the cartridge holder 3 side. The cartridge holder 3 and the drive unit 4 are coupled with each other as the cartridge holder 3 and the drive unit 4 are moved up and down (see FIG. 16). The lifting operation and the connecting operation are
The operation is performed by the rotation of the cam gear 6, but by appropriately designing the shapes of the upper surface cam groove 6α and the lower surface cam groove β formed in the cam gear 6, it is possible to correlate the above-mentioned operations with each other and It can be done without any problems.

As described above, the lock claws 20L and 20R are not completely disengaged from the notches 4A of the drive unit 4 when the connecting operation is completed by the rotating operation of the chucking plates 25L and 25R. That is,
The drive unit 4 maintains a standby state (locked state) during the coupling operation with the cartridge holder 3.

C- Separation operation of the cartridge holder 3 and the drive unit 4 ... From FIG. 13 to FIG. 12, when the cam gear 6 is rotated clockwise by the drive motor 7, the lower surface cam groove 6β is also rotated clockwise.
As a result, the cam follower 18 moves to the front side, the lock arm 17A moves clockwise, and the lock arm 17C moves clockwise.
Rotates counterclockwise. Therefore, the lock plates 19LA and 19R retract.

When the lock plate 19LA retracts, the lock plate 19LB rotates clockwise, and the lock plate 19LC moves to the left. This allows
The pressing portion 19i of the lock plate 19LC presses the pressed portion 25b of the chucking plate 25L. Therefore, the chucking plate 25L rotates clockwise against the elastic force of the chucking plate spring 26L, and the connecting roller 25c separates from the connecting portion 3D of the cartridge holder 3.

When the lock plate 19R retracts, the lock claw 20R pushes the pressed portion 25d of the chucking plate 25R. Therefore, the chucking plate 25R rotates against the elastic force of the chucking plate spring 26R, and the connecting claw 25e separates from the holder pin 3A on the right side edge of the cartridge holder 3. By such an operation, the connection between the cartridge holder 3 and the drive unit 4 is released.

[D. Lock Release Operation / Lock Operation of Drive Unit 4] As shown in FIGS. 15 and 16, after the connection between the cartridge holder 3 and the drive unit 4 is completed, the drive unit 4
Performs an unlocking operation (step 21) to make it a floating state, and opens the shutter of the cartridge C by an appropriate means to reproduce the MD (step 22). ... The state shown in FIG. The opening of the shutter may be performed when the cartridge C is conveyed into the cartridge holder 3.

D-Lock Release Operation of Drive Unit 4 Here, the lock release operation of the drive unit 4 will be described in detail. When the lower surface cam groove 6β continues to rotate in the counterclockwise direction even after the cartridge holder 3 and the drive unit 4 are connected, the floating mechanism of this embodiment performs the unlocking operation of the drive unit 4 as follows.

That is, the rotation of the lower surface cam groove 6β causes the cam follower 18 to move further to the inner side, and the lock arm 17
A rotates counterclockwise and the lock arm 17C rotates clockwise, so that the lock plates 19LA and 19R are rotated.
Move forward together. Of these, the lock claw 20R of the lock plate 19R is disengaged from the notch 4A of the drive unit 4 by the forward movement of the lock plate 19R (see FIG. 12 to FIG. 1).
3).

When the lock plate 19LA moves forward, the lock plate 19LB rotates counterclockwise, and the lock plate 19LC moves to the right. When the lock plate 19LC moves to the right, the lock claw 20L provided on the lock plate 19LC is removed from the notch 4A of the drive unit 4. Come off.

When the lock arm 17A rotates counterclockwise, the cam hole 17d of the lock arm 17A advances. Therefore, the lock arm 1 engaged with the cam hole 17d
The engagement pin 17e of 7B advances, and the lock arm 17B rotates counterclockwise. As a result, the lock arm 1
The lock claw 20B provided on 7B is the drive unit 4
It comes off from the notch 4A (from FIG. 12 to FIG. 13).

As described above, from each notch 4A of the drive unit 4 to the lock claw 20L of the lock plate 19LC,
When the lock claw 20R of the lock plate 19R and the lock claw 20B of the lock arm 17B are disengaged, the drive unit 4 is unlocked. for that reason,
The drive unit 4 tries to move up to a floating state by the elastic force of the damper and the vibration-proof spring.

Before the unlocking operation of the drive unit 4 is completed, the chucking plate 25
The connecting operation of the cartridge holder 3 and the drive unit 4 by the rotating operation of L and 25R is completed. Therefore, the cartridge holder 3 can move freely together with the drive unit 4.

D- Matching Operation of First Large Diameter Hole and Second Large Diameter Hole After the unlocking operation of the drive unit 4 is completed,
When the cam gear 6 further continues to rotate in the clockwise direction, the elevator plate 12L moves forward due to the rotation of the upper surface cam groove 6α, and the elevator plate 12R moves backward.
The second large diameter holes 16A, 1 in the large diameter holes 15A, 15B, 15C.
6B and 16C match (see FIGS. 9 and 10). At this time, the holder pin 3A is attached to the holder cams 12A, 12B, 1
2C moves from #S to #P.

D-sub guide plates 22L, 22
R descending operation ... From FIG. 17 to FIG. 18, FIG. 19 to FIG.
Also, the rotation of the lower surface cam groove 6β causes the sub guide plates 22L and 22R to move downward, and the first large diameter hole 15
Third large diameter holes 24A, 24B, 24 in A, 15B, 15C
C matches. That is, the three large diameter holes match. Hereinafter, the lowering operation of the sub guide plates 22L and 22R will be described.

That is, when the lock plates 19LA and 19R move forward due to the rotation of the lower surface cam groove 6β, the pressing pins 19c and 19e of both plates are moved by the sub-guide link 2
The pressed portions 21b of 1L and 21R are pressed to the front side. Therefore, the sub-guide links 21L and 21R rotate so that the tips thereof descend, and the holding portion 21a pushes down the engagement pin 22b. Therefore, the sub guide plates 22L, 22
R descends against the elastic force of the sub guide plate springs 23L and 23R.

Since the holder pin 3A is positioned with respect to the three matching large diameter holes, the holder pin 3A can freely move within the large diameter hole. At this time, since the cartridge holder 3 and the drive unit 4 are connected to each other, the cartridge holder 3 and the drive unit 4 which are the floating elements of this embodiment are in a floating state. After that, when the shutter of the cartridge C is opened by an appropriate means and the MD is reproduced by the drive unit 4, it is possible to accurately reproduce the MD without applying external vibration to the MD. As shown in FIG. 11, since the holder pin 3A has a thread winding shape in which both ends thereof are tapered, when the floating state is released, that is,
Even when the plates relatively move and the holder pin 3A enters the small groove side from the large-diameter hole, it is possible to favorably enter without being caught.

D-Locking operation of drive unit 4 ... From FIG. 13 to FIG. 12 When the drive motor 7 rotates the cam gear 6 in the counterclockwise direction, the lower surface cam groove 6β also rotates in the counterclockwise direction. As a result, the cam follower 18 moves to the front side,
The lock arm 17A is rotated clockwise,
7C rotates counterclockwise. Therefore, the lock plates 19LA and 19R are retracted, and the lock plates 19LA and 19R are retracted.
LC moves to the left.

When the lock plate 19R is retracted, the lock claw 20R enters the notch 4A of the drive unit 4. Further, as the lock arm 17A rotates clockwise, the lock plate 19LB rotates clockwise, and the lock claw 20B enters the notch 4A. Further, by moving the lock plate 19LC to the left, the lock claw 20L enters the notch 4A.

As described above, the lock claw 20 of the lock plate 19LC is attached to each notch 4A of the drive unit 4.
The drive unit 4 is locked by the L, the lock claw 20R of the lock plate 19R, and the lock claw 20B of the lock arm 17B entering. At this time, each lock claw presses the taper portion of the notch 4A, and the drive unit 4 descends to a position in contact with the bottom surface portion of the device case 1.

D-sub guide plates 22L, 22
R rising operation ... From FIG. 18 to FIG. 17, FIG. 20 to FIG.
When the drive motor 7 rotates the cam gear 6 in the counterclockwise direction and the lower surface cam groove 6β rotates in the counterclockwise direction, the cam follower 18 moves toward the front side, and the lock arm 17A moves in the clockwise direction. The lock arm 17C rotates counterclockwise. Therefore, the lock plate 1
9LA and 19R retreat.

As a result, the pressing pins 19c of both plates are
And 19e separate from the pressed portions 21b of the sub guide links 21L and 21R. Therefore, the sub guide plate 2
2L and 22R are sub guide plate springs 23L and
The elastic force of 23R causes the sub guide link 21 to rise.
L and 21R rotate so that the tip ends rise.

As described above, in this embodiment, one operation is controlled by the rotation of the upper surface cam groove 6α of the cam gear 6, that is, the vertical movement of the cartridge holder 3 and the stocker 5, and at the same time, the lower surface cam groove 6β of the cam gear 6 is controlled. The rotation of 2 controls the two operations, that is, the coupling / separation operation between the cartridge holder 3 and the drive unit 4 and the unlocking / locking operation of the drive unit 4.

Further, according to this embodiment, when the cartridge holder 3 which is a floating element is moved, the side plates 1L, 1R and the sub guide plates 22L,
22R while guiding the holder pin 3A, the holder cams 12A, 1 of the elevator plates 12L, 12R.
2B and 12C can move the holder pin 3A to raise and lower the floating element greatly. Further, when the drive unit 4 performs the recording / reproducing operation of the MD,
By moving the elevator plates 12L, 12R and the sub-guide plates 22L, 22R, the first large-diameter holes 15A, 1
5B and 15C are aligned with the second large-diameter holes 16A, 16B, 16C and the third large-diameter holes 24A, 24B, 24C, and the holder pin 3A is positioned in the three large-diameter holes, so that the floating element can move freely. Can be taken.

The present invention is not limited to the above-mentioned embodiment, and for example, the moving direction of the support pin by the moving plate can be appropriately selected, and the shape and size of the constituent members can be appropriately changed. is there. Further, it goes without saying that the applicable discs include not only MDs but also CDs, LDs, magnetic discs and the like.

[0127]

According to the disk device of the first aspect, the stepped cam of the moving plate is guided while guiding the support pin of the floating element by the guide groove and the sub guide groove of the side plate and the sub guide plate. Move the support pin to move the floating element largely, and at the same time, move the lifting plate and the sub guide plate to move the second and third large holes to the first large hole of the side plate. Since it is possible to align the support pins of the floating element in the three large diameter holes that are aligned and allow the floating element to perform the floating motion, it is possible to perform the moving operation and the floating motion of the floating element with excellent accuracy. did it. Further, since the support pin moves away from the stepped cam, noise during recording / reproducing of the disk is reduced and resonance does not occur.

(2) In the disc device according to the second aspect, since the plate holding portion of the support pin is wound, the plate holding portion is returned from the floating state to the guide groove, the sub guide groove and the stepped cam. There is no risk of getting caught in the groove or cam when entering the inside. As a result, the operation of the disc can be favorably performed without any trouble.

(3) In the disc device according to the third aspect, when the plate holding portion is in a floating state, the disc holder of the plate holding portion is connected to the floating-supported disc player. Good floating support.

(4) In the disk device according to the fourth aspect, since the sub guide plate is moved by the releasing operation of the lock member, the structure for moving the sub guide plate can be simplified.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a device case 1 and main parts according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a device case 1 and a main part of this embodiment.

FIG. 3 is an explanatory diagram of a device case 1 and a main part of this embodiment.

FIG. 4 is an explanatory diagram of a device case 1 and main parts of the present embodiment.

FIG. 5 is an explanatory diagram of a device case 1 and a main part of this embodiment.

FIG. 6 is a plan view of a mechanism for moving up and down the cartridge holder 3 and the stocker 5 of this embodiment.

FIG. 7 is a plan view of a mechanism for moving up and down the cartridge holder 3 and the stocker 5 of this embodiment.

FIG. 8 is a plan view of the cam gear 6 of this embodiment, (A)
Shows the upper surface side, and (B) shows the lower surface side.

FIG. 9 is a side view of the elevator plate 12L and members adjacent to the elevator plate 12L according to the present embodiment.

FIG. 10 is a side view of the elevator plate 12R and members adjacent to the elevator plate 12R according to the present embodiment.

FIG. 11 is an elevator plate 12L, 12 of this embodiment.
FIG. 3 is a plan view showing R, a cartridge holder 3, and a stocker 5.

FIG. 12 is a plan view of the floating mechanism of this embodiment.

FIG. 13 is a plan view of the floating mechanism of this embodiment.

FIG. 14 is a plan view of the connecting means of this embodiment.

15 is a left side view of FIG.

FIG. 16 is a right side view of the connecting means of the present embodiment.

FIG. 17 is a side view of a mechanism for operating the sub guide plate 22L of the present embodiment.

FIG. 18 is a side view of a mechanism for operating the sub guide plate 22L of the present embodiment.

FIG. 19 is a side view of a mechanism for operating the sub guide plate 22R of the present embodiment.

FIG. 20 is a side view of a mechanism for operating the sub guide plate 22R of the present embodiment.

FIG. 21 is a flowchart illustrating the outline of the operation of this embodiment.

FIG. 22 is a flowchart for explaining the outline of the operation of this embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Equipment case 1L, 1R ... Side plate 2 ... Insertion port 2A ... Dustproof door 3 ... Cartridge holder 3A ... Holder unit 4 ... Drive unit 5 ... Stocker 5A ... Stocker pin 6 ... Cam gear 6α ... Upper surface cam groove 6β ... Lower surface cam groove 10 ... Elevator Drive link 11 ... Elevator drive arms 12L, 12R ... Elevator plates 12A, 12B, 12C ... Holder cams 12D, 12E ... Stocker cams 13, 18 ... Cam followers 14L, 14R ... Operation pins 15A, 15B, 15C ... First large diameter Holes 16A, 16B, 16C ... Second large diameter holes 17A, 17B, 17C ... Lock arms 19LA, 19LB, 19LC, 19R ... Lock plates 20B, 20L, 20R ... Lock claws 21L, 21R ... Sub guide links 22L, 22R ... Sub Guide plates 23L, 2 3R ... Sub guide plate springs 24A, 24B, 24C ... Third large diameter holes 25L, 25R ... Chucking plates 26L, 26R ... Chucking plate springs 50S to 55S ... Detection switch C ... Cartridge

Claims (4)

(57) [Claims] 1. An equipment case is provided, in which an insertion slot into which a disc can be inserted is formed, and in the equipment case, information is recorded on the recording surface of the disc or recorded on the recording surface of the disc. A disc device provided with a drive unit for reproducing information, the disc device including at least the drive unit,
When playing or recording
A floating element that is movably supported is provided, a support pin that supports the floating element in the device case is provided to project from the floating element, and a side plate is fixed in the vicinity of the floating element. A moving plate and a sub-guide plate are movably disposed adjacent to, and a guide groove is formed in the side plate to slidably insert the support pin and guide the support pin in a moving direction, A first large-diameter hole is formed in the guide groove continuously with the guide groove, and a stepped cam is formed in the moving plate to slidably insert the support pin and move the support pin, A second large-diameter hole is formed in the step-shaped cam continuously with the step-shaped cam, and a second large-diameter hole is formed in the sub-guide plate due to the formation of the first large-diameter hole. An auxiliary guide groove is formed to supplement the guide groove, a third large diameter hole is formed in the auxiliary guide groove continuously with the auxiliary guide groove, and a second large diameter hole is formed by moving the moving plate to a side surface. The first, second and third large diameter holes are substantially aligned with the first large diameter hole of the plate, and the third large diameter hole is substantially aligned with the first large diameter hole by the movement of the sub guide plate. A disk device, in which is arranged. 2. The disk device according to claim 1, wherein the end portion of the support pin is provided with a pin-wound plate holding portion whose both ends are tapered. 3. The floating element includes a disk holder that holds a disk and a drive unit that is supported in a guideable manner with respect to a device case, and the support pin is provided on the disk holder side. 3. The disk device according to claim 1, wherein the disk holder is connected to the drive unit when the large diameter hole to the third large diameter hole are substantially aligned with each other. 4. A lock member is provided for locking the free movement of the drive unit, and the operation of the lock member when releasing the lock of the drive unit causes the third large diameter hole to coincide with the first large diameter hole. 4. The disk device according to claim 1, wherein the lock member and the sub guide plate are engaged with each other.