JPH07240061A - Disk housing device - Google Patents

Abstract

PURPOSE:To surely hold plural subtrays by preventing plural disks fitted into recessed parts of these disk trays from falling off from the recessed parts with disk pressing projections provided projectingly on an inner wall part of a case body part. CONSTITUTION:A disk stocker 8 constitutes the disk housing device for layering and housing the plural subtrays 14 as the disk trays. Each subtray 14 has a large diameter recessed part 124 in one surface side to be the upper surface part, into which an optical disk 301 is fitted. One side peripheral part of this subtray 14 is provided with a protruding part via a spring part 127. Then, the plural disk pressing projections 119 are provided projectingly toward the forward side on a rear wall part in an inner surface part 9 of the disk stocker 8 to correspond to individual rack members 12. When the subtrays 14 having their optical disks 301 placed into the large diameter recessed parts 124 respectively are housed in the disk stocker 8, the optical disks 301 are prevented by these projections 119 from falling off from the large diameter recessed parts 124.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc storage device used in a disc player device for reproducing information signals recorded on an optical disc.

[0002]

2. Description of the Related Art Heretofore, there has been proposed a disc player device which is configured as a disc changer device in which a plurality of optical discs are housed in an outer casing and which selectively reproduces from the optical discs.

In such a disc changer device, a plurality of sub-trays on which the above-mentioned optical discs are placed and loaded are housed in a stacked manner in the outer casing, and one of the sub-trays is housed in the main tray for loading operation. Some are configured to do. The main tray includes a movement range for selecting each sub-tray, a loading position for mounting an optical disc loaded in the selected and stored sub-tray in the disc drive unit, and the selected sub-tray in the outer casing. At the same time, it is movably arranged so as to extend to the eject position that projects outward from the outer casing. That is, the main tray is moved up and down between a position facing the disc stocker in which the sub trays are stacked and stored, and a position close to the disc drive unit. And a position on the outer side of the outer housing are moved in the horizontal direction. The sub-tray is moved to the main tray side and stored in the main tray in a state where the main tray faces the disc stocker.

The optical disk is stored in the disk stocker while being mounted and loaded on the sub-tray. Then, the optical disc, while being placed and loaded on the sub-tray, is conveyed to the loading position by the main tray, and a reproduction operation is performed by the disc drive unit. Further, when the sub-tray is stored in the main tray and is in the eject position, the optical disc is loaded or unloaded.

The lifting operation of the main tray is performed by an elevator mechanism which is a lifting device. The horizontal movement operation of the main tray is performed by the movement operation mechanism. Further, the moving operation of the sub-tray with respect to the main tray is also performed by the moving operation mechanism. The elevator mechanism and each movement operation mechanism are driven by a motor as a driving force source.

[0006]

By the way, in the disc storage device used as the disc stocker in the disc player device as described above, when the optical disc falls out of the outer casing, the optical disc is not used. If the housing is not opened, it cannot be taken out, and the operation of the disc player device becomes impossible.

Therefore, it is necessary for the disc storage device to securely hold the optical disc and the sub-tray on which the optical disc is mounted.

Therefore, the present invention is proposed in view of the above-mentioned circumstances, and it is possible to reliably hold a plurality of optical disks housed therein and a plurality of sub-trays on which these optical disks are mounted and loaded. Therefore, it is an object of the present invention to provide a disc storage device suitable for use in the configuration of a disc changer device.

[0009]

In order to solve the above-mentioned problems and achieve the above-mentioned objects, a disk storage device according to the present invention is provided with a disk tray formed with a concave portion into which a disk is fitted. A casing portion that is formed into a stacked shape and accommodates a plurality of sheets, and a portion on the other surface of each disk tray that is formed as a protrusion on the inner wall portion of the casing portion and that is accommodated in the casing portion are supported by Shelf members having an interval between the disc trays that is wider than the thickness of the discs, and discs that correspond to one surface side of each disc tray that is protruded from the inner wall portion of the housing portion and is supported by the shelf members. Each disc pressing protrusion faces the one surface side of the disc fitted in the concave portion of the disc tray housed in the disc stocker, and prevents the disc from falling out of the concave portion. It is made of Te.

The disk storage device according to the present invention is
A plurality of disc trays each having a recess into which one side is fitted with a disc and a protrusion provided at a side edge portion via a spring portion, and a plurality of disc trays whose front sides are opened and are laminated. A housing part to be housed, a shelf member formed as a protrusion on the inner wall part of the housing part and supporting the other surface side portion of each disk tray housed in the housing part, and an inner wall of the housing part A plurality of fitting recesses provided corresponding to the protrusions of the respective disk trays supported by the respective shelf members, each of the protrusions is fitted and engaged with the fitting recess, The disc tray is prevented from falling off the casing.

[0011]

In the disk accommodating apparatus according to the present invention, the shelves in the housing make the intervals between the disk trays wider than the thickness of the disks, and the disk trays are held in the recesses formed on one side of the disk trays. Further, the plurality of discs are prevented from coming off from the concave portion by the disc pressing projections provided so as to project from the inner wall portion of the housing portion, and therefore coming off from the housing portion are also prevented.

Further, the disk storage device according to the present invention is
A plurality of disc trays each having a concave portion into which a disc is fitted and a protrusion provided at a side edge portion via a spring portion are stacked and housed in a housing portion whose front side is open. Since the projections are fitted into and engaged with the fitting recesses provided on the inner wall of the housing, it is possible to prevent the disks from coming off the housing, so that the disk can be securely placed in the housing. Can be held.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. This example is an example in which the present invention is applied to a disc changer device which accommodates a plurality of optical discs and reproduces an information signal recorded on an optical disc selected from these optical discs.

The disc changer device will be described in the following order. [1] Outline of disc changer device (FIG. 1, FIG. 32 to FIG. 34) [2] Configuration of disc drive unit (FIG. 1, FIG. 32 to FIG. 34) [3] Configuration of disc stocker and sub-tray (FIG. 1, FIG.
4 to 7) [4] Configuration of elevator mechanism (FIG. 1, FIG. 8 to FIG. 10,
15 to 31 and 44) [5] Configuration of elevator block (FIGS. 1 to 3 and 8)
14 to 32, 43 to 45, 51 to 51) (5-1) Elevator block and main tray (5-2) Power transmission means (5-3) Lock mechanism for main tray and sub-tray (5-4) ) Sensor for position detection (5-5) Lock mechanism for sub-tray (5-6) Display unit (5-7) Rotating lever mechanism [6] Operation of disc changer device

[1] Outline of Disc Changer Device (FIGS. 1, 32 to 34) An optical disc used as a recording medium in this disc changer device has a transparent disc substrate made of a synthetic resin material such as polycarbonate. Is configured. This disk substrate has a diameter of, for example, 12 cm or 8 cm, and fine irregularities (pits) corresponding to information signals are spirally formed on one main surface portion. A reflection layer made of a thin film of a metal material such as aluminum is adhered to one main surface portion of the disk substrate. This optical disc has a chucking hole in the central portion.

The disc changer device is
As shown in FIG. 1, it has a chassis 1. On the bottom plate 2 of the chassis 1, a disc drive unit 5 serving as a disc reproducing unit is arranged. Further, on the rear side of the disc drive unit 5 on the chassis 1,
A disk stocker 8 is provided which is configured to be capable of accommodating a plurality of optical disks in a laminated form.

An elevator block is disposed on the chassis 1 above the disk drive unit 5. This elevator block includes an elevator block base 44 and an elevator block top 67. The elevator block is supported on both side wall portions 3 and 4 of the chassis 1 so as to be able to be moved up and down through an elevator mechanism. That is, this elevator block can be brought into and out of contact with the disk drive unit 5.

A main tray 75 is movably supported on the elevator block. The main tray 75 can be moved and operated between a position where the main tray 75 is housed in the elevator block, that is, a play position, and a position where the main tray 75 projects forward from the elevator block, that is, an eject position. A pair of retaining protrusions 131, 131 is provided on the rear end side of the upper surface of the main tray 75. When the main tray 75 is in the eject position, the retaining protrusions 131, 131 abut on the front end side of the lower surface portion of the elevator block top 67, and the main tray 75 moves toward the front side of the elevator block. Prevent it from falling off.

A plurality of sub-trays 14 stored in the disk stocker 8 are selectively stored in the main tray 75. The sub tray 14 holds the optical disc. That is, the sub tray 14
Is the stock position where the disc stocker 8 is stored and the main tray 75 located at the play position.
The transfer operation is performed between the play position, which is the position stored in the main tray 75, and the eject position, which is the position stored in the main tray 75, which is the eject position.

As the elevator block is moved up and down, as shown in FIG. 32, one sub tray 1 out of the plurality of sub trays 14 in the disk stocker 8
4 is selected and conveyed to the play position and stored in the main tray 75.

The elevator block is shown in FIG.
As shown in FIG. 5, when the unloading position, which is a predetermined height position that does not face any sub-tray in the disc stocker 8, is set, the disc insertion hole 154 formed in the front surface portion of the outer casing 155 is opened. The main tray 75 can be moved to the eject position via the above. When the main tray 75 is in the eject position, the sub-tray 14 accommodated in the main tray 75 can be loaded and unloaded with an optical disk.

Further, the elevator block is shown in FIG.
As shown in FIG. 4, the optical disc held in the sub-tray 14 housed in the main tray 75 is mounted in the disc drive unit 6 when the loading position is close to the disc drive unit 5.

Then, the elevator block replaces the sub-tray 14 housed in the main tray 75 with
It can be returned to a predetermined position in the disc stocker 8 again.

[2] Configuration of disk drive section (FIG. 1,
32 to 34) Disc The disc drive unit 5 has a frame which is so-called floatingly supported by the bottom plate 2 of the chassis 1 via a damper. The disk drive unit 5 includes a spindle motor attached to the frame, and an optical pickup device 7 movably supported on the frame.

The spindle motor has a drive shaft projecting upward from the bottom plate 2. A disk table 6 is attached to this drive shaft. The disc table 6 is formed in a substantially disc shape, and has a truncated cone-shaped projection in the central portion of the upper surface portion. When the optical disc is placed on the disc table 6, the protrusion fits into a chucking hole of the optical disc,
This optical disk is centered. The disc table 6 is loaded with the optical disc, and is rotated by the driving force of the spindle motor together with the optical disc.

The optical pickup device 7 has an optical block supported by the frame so as to be movable in the contacting and separating directions with respect to the disc table 6, and a laser diode serving as a light source is provided in the optical block. It incorporates optical devices such as beam splitter and objective lens, and photodetectors such as phototransistors. The optical pickup device 7 focuses the light flux emitted from the laser diode onto the optical disc on the disc table 6 by the objective lens and irradiates the light flux, and reflects the light flux reflected by the optical disc and returned to the objective lens. , Is configured to be detected by the photodetector. The output signal from the photodetector is a signal obtained by reading the information signal recorded on the optical disc.

When the optical pickup device 7 is moved with respect to the frame, it can irradiate the light flux over the inner and outer circumferences of the optical disc mounted on the disc table 6, and The information signal can be read from the entire surface.

[3] Configuration of disc stocker and sub-tray (FIGS. 1, 4 to 7) The disc stocker 8 serves as a disc storage device for storing a plurality of sub-trays 14 which are disc trays in a laminated form. It is a thing. In this embodiment, the disc stocker 8 accommodates five sub trays 14. As shown in FIG. 4, the disc stocker 8 is formed in a substantially rectangular housing shape, and the front surface side thereof is open for the sub tray 14 to be inserted and removed.

As shown in FIGS. 6 and 7, the sub-tray 14 is formed in a substantially rectangular flat plate shape, and the large-diameter concave portion 1 into which the optical disk 301 is fitted on one surface side which is an upper surface portion.
Has 24. The large-diameter concave portion 124 is formed as a circular concave portion having a diameter of 12 cm, for example, according to the diameter of the optical disc 301. A small-diameter recess 125 is formed on the bottom surface of the large-diameter recess 124. The small-diameter recess 125 is formed as a circular recess having a diameter of 8 cm, for example, according to the diameter of the small-diameter optical disc.
The sub-tray 14 has a notch 122 extending from the rear edge to the central portion. This cutout 1
22 denotes the optical disc 301 in the large-diameter recess 124.
When the optical disk 301 is inserted and mounted, the chucking hole 302 of the optical disk 301, the peripheral portion of the chucking hole 302, and a part of the signal recording area, which is the optical disk 301.
And a portion extending over the inner and outer circumferences of the sub tray 14 are exposed to the lower side of the sub tray 14.

The sub-tray 14 is provided at its rear side portion and rear edge portion on both side edge portions with a slightly thin collar portion 126. A protrusion 16 is provided on the side edge of the sub-tray 14 on one side via a spring 127. The spring portion 127 and the protruding portion 16 are a part of the sub-tray 14, and are formed by providing a cut portion along a side edge of the sub-tray 14 at one side portion of the sub-tray 14. The spring portion 127 has an arm shape that extends rearward along the side edge of the sub-tray 14. The protruding portion 16 is formed on the tip side of the spring portion 127 and protrudes to the side of the side edge of the sub-tray 14.

Then, in the disc stocker 8,
As shown in FIG. 5, as many shelf members 12 as the number of sub-trays 14 to be stored are integrally formed in a protruding manner. The shelf member 12 is formed as a plurality of parallel protrusions forming a shelf over both side wall portions and the rear wall portion of the inner surface portion 9 of the disc stocker 8. This shelf member 12
When the sub-tray 14 is inserted into the disc stocker 8, the sub-tray 14 is placed horizontally by supporting the other surface side portion which is the lower surface portion of the sub-tray 8.
At this time, the shelf member 12 supports the flange portion 126. When the sub-tray 14 is placed corresponding to each of the shelf members 12, the interval between the sub-trays 14 is wider than the thickness of the optical disc 301.

A plurality of fitting recesses are formed on one side wall of the inner surface portion 9 of the disc stocker 8 corresponding to the protrusions 16 of the sub trays 14 supported by the shelf members 12. 11 is provided. These fitting recesses 11
Is formed as a through hole penetrating the side plate portion of the disc stocker 8. When the sub-tray 14 is stored in the disc stocker 8 and placed on the shelf member 12, the protrusions 16 are fitted by the elastic force of the spring portion 127, as indicated by an arrow E in FIG. Mating recess 1
When the sub-tray 14 is engaged with the disc stocker 1, the sub-tray 14 is prevented from falling off the disc stocker 8. When the sub-tray 14 is moved in and out of the disk stocker 8 as shown by an arrow D in FIG. 4, when the projection 16 is not in a position corresponding to the fitting recess 11, the projection 16 is The spring portion 127 is elastically displaced by being pressed by the inner surface portion 9 of the disk stocker 8.

The inner surface portion 9 of the disk stocker 8 is also
A plurality of disc pressing protrusions 119 are provided on the rear wall portion so as to project toward the front side, corresponding to the above-mentioned shelf members 12. The disc pressing protrusions 119 face the upper surface portions of the sub-trays 14 supported by the shelf members 12, respectively. When the sub-tray 14 in which the optical disc 301 is fitted and placed in the large-diameter recess 124 is stored in the disc stocker 8, the disc holding protrusions 119 are provided on the optical disc 30 as shown in FIGS. 4 and 5.
The optical disc 301 is prevented from coming off from the large-diameter concave portion 124 by coming close to the upper surface of the optical disc 301.

A pair of left and right mounting pieces 128, 128 are provided on the outer surface portions of both sides of the disk stocker 8 so as to project therefrom. Screw holes are formed in the mounting pieces 128. A plurality of setscrews 10 are inserted into the disk stocker 8 corresponding to the screw insertion holes of the mounting pieces 128, 128, and these setscrews 10 are provided on both side wall portions 3 and 4 of the chassis 1. By being screwed into the screw holes of the pair of left and right support pieces 45, 45,
It is attached to the chassis 1. A cutout 129 is formed in the lower part of the disk stocker 8 to avoid contact with a support shaft 40, which will be described later.

The side walls 3, 4 of the chassis 1
The top plate 71 serving as a reinforcing member extends over the upper edge of the
It is attached by a plurality of setscrews 74. The top plate 71 is formed in a substantially flat plate shape, and has a pair of screw insertion holes 72, 72 and positioning holes 73, 7 on both side portions, respectively.
Have three. The top plate 71 has the screw insertion holes 7
The set screws 74, which are inserted in correspondence with Nos. 2 and 72, are attached to the side walls 3 and 4 by being screwed into the screw holes formed at the upper ends of the side walls 3 and 4. The top plate 71 is located on the front side of the disc stocker 8 and is attached to the side walls 3 and 4.

The top plate 71 has a pair of claw portions 94 for positioning the disc stocker 8 at the rear edge portion.
It has 94. The claws 94, 94 are formed so as to project rearward from the top plate 71 and are bent downward in a hook shape. These claws 94, 94 are
The disc stocker 8 is positioned such that the front portion of the upper portion of the disc stocker 8 is sandwiched.

Further, the disc stocker 8 has a pair of left and right slit portions 11 for fitting and engaging the front end portions of the respective claw portions 94, 94 with the front portion of the upper side portion.
5,115. The disk stocker 8 is
The slits 115, 115 are provided with the claws 94, 9 respectively.
4 is fitted and engaged, so that the top plate 71 is positioned and supported.

Each sub-tray 14 has a V-groove engaged portion 104 on the front side of one side edge.
The engaged recess 104 is for being locked in the main tray 75 described later. Further, in the front side portion of the edge portion on one side of these sub trays,
An engagement recess 15 is formed at a position slightly rearward of the engaged portion 104. The engaging recess 15 is for engaging the engaging projection 90 of the slider 88, which will be described later, to move the sub tray 14. The engaged concave portion 104 and the engaging concave portion 15 are formed by the sub tray 14 described above.
When the is stored in the disc stocker 8,
As shown in FIGS. 4 and 6, the disk stocker 8 is exposed to the front side of the side wall portion.

On the other side of the front side of the upper surface of each sub-tray 14, there is provided a display section 17 on which a code is provided which allows the sub-tray 14 to be distinguished from each other. Further, a disc detection through hole 123 is formed on the bottom surface of the small-diameter recess 125 so that a disc presence sensor, which will be described later, can detect the presence or absence of the optical disc 301 on the sub-tray 14.

[4] Configuration of elevator mechanism (FIGS. 1 and 8)
(FIG. 10 to FIG. 15, FIG. 15 to FIG. 31, FIG. 44) The elevator mechanism in this disc changer device is a mechanism for vertically moving an elevator block base 44, which constitutes an elevator block described later, within a predetermined range on a linear locus. is there. The elevator block base 44 is arranged between a pair of side wall portions 3 and 4 which are parallel to each other on the bottom plate portion 2 of the chassis 1 and are erected so as to face each other. This elevator block base 44 has gravity and a tension coil spring 96 described later.
And the torsion coil springs 100, 100 are urged to move downward.

The elevator block base 44 has a pair of front and rear support pins 47, 48 on both side edges.
It has 47 and 48. Then, the side wall portions 3 and 4 described above
Includes a pair of front and rear guide slits 21, 22,
21 and 22 are formed. These guide slits 2
1, 22, 21, 22 are formed linearly in the vertical direction. The support pins 47, 48, 47, 48 are inserted in correspondence with the guide slits 21, 22, 21, 22. That is, the elevator block base 44 is vertically movable within a range in which the support pins 47, 48, 47, 48 are moved within the guide slits 47, 48, 47, 48. The guide slits 21, 22, 21, 22 are
The upper end side is open to the upper end edges of the side wall parts 3 and 4, and the support pins 4 of the elevator block base 44 are
7,48,47,48 can be entered from above.

A pair of left and right first and second cam plates 24, 23, 24, 23 are attached to the outer side portions of the side wall portions 3, 4 so as to be movable in the front-rear direction. There is. As shown in FIGS. 1 and 20, the first cam plate 24 is formed in a substantially flat plate shape, and support slits 28, 29, 30 are formed in the upper part of the central part and the lower parts of both sides. Has been formed. Support pins 18, 19, 20 are provided on one of the side wall portions 3 so as to project outward. These support pins 18, 19, 20 are
The first cam plate 24 is slidably supported in the front-rear direction by being inserted through the support slits 28, 29 and 30. That is, the movable distance of the first cam plate 24 corresponds to the length of each of the support slits 28, 29, 30. Similarly to the one side wall portion 3, the other side wall portion 4 is also provided with support pins 18, 19, 20. The support pins 18, 19, 20 move the first cam plate 24 back and forth. It is supported so that it can move in any direction. The first cam plates 24, 24 have a shape that is plane-symmetrical (mirror image) with each other, and are arranged so that their back surfaces face the side walls 3, 4 respectively.

The first cam plate 24 is provided with a pair of front and rear cam slits 33, 33. These cam slits 33, 33 have the same shape as each other. Each of the cam slits 33, 33 is formed in a substantially lightning shape by a plurality of horizontal portions (stop portions) and an inclined portion that sequentially connects them. That is, the respective horizontal portions are arranged at different height positions, and are arranged in a staggered manner in order from the tallest one. In addition, the cam slits 33, 3 described above
3, 33, 33 are opened at the upper end side to the upper end edge of the first cam plate 24, and the support pins 47, 48, 47, 48 of the elevator block base 44 can be inserted from above. Has been made.

The height position of each horizontal portion of each cam slit 33, 33 is the height position of each sub-tray 14 housed in the disk stocker 8 described above, the unloading position, and the loading position. It is designed to correspond to the department.

The first cam plates 24, 24 have a rear side position where the horizontal portion of the cam slits 33, 33 positioned on the front side is superposed on the guide slits 21, 22, that is, an initial position. The cam slits 33, 3
It is movable over a front side position of the horizontal portion of the three located on the rear side over the guide slits 21 and 22, that is, an operating position.

The second cam plate 23 is formed in a substantially flat plate shape having substantially the same size as the first cam plate 24, and has an upper part in the central part and lower parts on both sides. The support slits 25, 26, 27 are formed in the. These support slits 25, 26, 27 are provided with the support pins 18, 1
The second cam plate 23 is supported so as to be slidable in the front-rear direction by inserting 9 and 20 correspondingly. That is, the movable distance of the second cam plate 23 corresponds to the length of each of the support slits 25, 26, 27.
Similarly to the one side wall portion 3, the other side wall portion 4 also supports the second cam plate 23 so as to be movable in the front-rear direction by the support pins 18, 19, 20.
These second cam plates 23, 23 have a shape that is plane-symmetrical (mirror image) with each other, and are arranged so that their back surfaces face the side walls 3, 4 respectively.
The second cam plates 23, 23 are arranged so as to be interposed between the first cam plates 24, 24 and the side wall parts 3, 4, respectively.

Each of the second cam plates 23 has a pair of front and rear abutting support pieces. These contact support piece groups are formed at the rear edge portions of the through holes 31, 31 formed in the second cam plate 23. These abutting support piece groups have the same shape. Each of these contact support piece groups is composed of a plurality of contact support pieces. Each abutting support piece is integrally supported on the base end side of the main body of the second cam plate 23 so as to be supported, and the tip end side of the abutment support piece is a free end so as to project into the through holes. There is. That is, the contact support piece groups are each formed in a comb shape. The upper edge portions of these contact support pieces are contact support portions. Each of these contact support parts corresponds to the height of each horizontal part of the first cam plate 24. The upper ends of the through holes 31, 31, 31, 31, 31 are open to the upper edge of the second cam plate 23, and the support pins 47, 48 of the elevator block base 44 are
47 and 48 can be entered from above.

The second cam plates 23, 23 are located at the front position where the contact support portions are superposed on the guide slits 21, 22, that is, the support position, and the contact support portions are provided in the guide slits. It is movable to a rear side position of retracting to the rear side of the 21, 22 or the unsupported position.

On the lower side of the rear portion of the second cam plate 23, a cam groove 153 of the drive cam gear 41 described later is formed.
There is provided a copying pin 43 which is engaged with and copied.

Each of the above support pins 47, 48, 47, 48
Are inserted into the respective guide slits 21, 22, 21, 22 and the through holes 31, 23 of the second cam plates 23, 23 are inserted.
31, 31, 31, and the cam slits 33, 33, 33, 3 of the first cam plates 24, 24, respectively.
Correspondingly, 3 is entered.

The elevator mechanism is driven and operated by the lift motor 116 attached to the side wall portion 3. The driving force of the lifting motor 116 is the driving pulley 36 attached to the driving shaft of the lifting motor 116, and the driving belt 37 wound around the driving pulley 36.
The drive belt 37 is transmitted to the driven pulley 38, which is wound around the drive belt 37. This driven pulley 38 is used for the support shaft 1
It is rotatably attached to the side wall portion 3 via 51. A gear portion 120 is integrally formed with the driven pulley 37. The gear portion 120 is supported by the side wall portions 3 and 4 and is rotatable around the support shaft 4.
It meshes with a transmission gear 39 attached to one end side of 0. The transmission gear 39 is integrally formed with a small-diameter gear portion 121. The small-diameter gear portion 121 meshes with the drive cam gear 41 rotatably attached to the one side wall portion 3 via a support shaft 152.

A transmission gear 39 is also attached to the other end of the support shaft 40. The small-diameter gear portion 121 formed integrally with the transmission gear 39 meshes with the drive cam gear 41 rotatably attached to the other side wall portion 4 via the support shaft 152. That is, the drive cam gears 41, 41 are driven in the same direction (however, the support shaft 15 is rotated by the lift motor 116).
When viewed from the 2 side, they are rotationally driven in mutually opposite directions).

Each of the drive cam gears 41, 41 has a first
And the second cam plates 23, 24, 23, 24 are arranged on the rear side, and a part thereof is interposed between the cam plates 24, 23, 24, 23. In the drive cam gear 41, a drive pin 42 is planted on the front surface portion that faces the back surface portion of the first cam plate 24. This drive pin 41 is the first
The cam plate 24 is inserted into and engaged with a copying slit 32 formed in the rear portion of the cam plate 24 in the vertical direction. That is, the first cam plates 24, 24 make one reciprocating movement in the front-rear direction within the range between the initial position and the operating position when the drive cam gears 41, 41 make one revolution. A recess for avoiding contact with the drive cam gear 41 is formed on the rear surface of the rear side of the first cam plate 24.

Then, as shown in FIG. 44, cam grooves 153, 153 are formed on the back surface of each of the drive cam gears 41, 41 facing the surface of the second cam plate 23, 23. . The cam grooves 153, 153 are formed to have an elliptical shape, and have two centrifugal points separated by 180 ° from each other and an angular position of 90 ° with respect to these centrifugal points and 180 ° from each other. It is formed with two mesial points separated by. In the cam groove 153, the copying pin 43 planted on the surface of the second cam plate 23.
Are engaged. That is, the second cam plates 23, 2
When the drive cam gears 41 and 41 make one rotation, the drive shaft 3 makes two reciprocating movements in the front-rear direction within the range between the supporting position and the non-supporting position.

Then, each of the first and second cam plates 2 described above
4, 23, 24 and 23 are the drive cam gears 41 and 4 described above.
When 1 is rotationally operated, they have a constant phase difference from each other and are cyclically reciprocated. As shown in FIG. 30, the cam plates 23 and 24 attached to the side wall portion 3 on the one side have the first cam plate 2 when the rotation direction of the drive cam gear 41 is clockwise.
The maximum point of the slide amount of the second cam plate 23 with respect to the maximum point of the slide amount of No. 4 (when moved to the right or left most, that is, the initial position or the operating position). There is a phase difference that causes a delay of 45 ° as the rotation angle of the drive cam gear 41 (when it moves to the right toward the right, that is, when it reaches the unsupported position). Further, as shown in FIG. 31, the cam plates 23 and 24 attached to the side wall portion 4 on the other side have the first cam when the rotation direction of the drive cam gear 41 is counterclockwise. The maximum point of the sliding amount of the plate 24 (when moved to the right or left most,
That is, with respect to the initial position or the operation position), the maximum point of the sliding amount of the second cam plate 23 (when moved to the right to the maximum, that is, the unsupported position). However, there is a phase difference that causes the drive cam gear 41 to advance by 45 ° as the rotation angle.

8 to 10 are provided on the side wall portion 3.
As shown in FIG. 5, a pressing switch 118 for detecting that the second cam plate 23 is in the unsupported position is attached. When the second cam plate 23 is in the unsupported position, the push switch 118 is set to the second position.
The switch pressing piece provided on the lower side of the cam plate 23 is pressed to detect that the second cam plate 23 is in the unsupported position. When the second cam plate 23 is not in the unsupported position, the pressing switch 118 is not pressed. That is, by counting the number of times the pressing switch 118 is pressed, the number of times the second cam plate 23 is reciprocated, that is, the distance by which the elevator block base 44 is moved can be detected. .

A push switch 117 is arranged on the bottom plate 2 of the chassis 1 so as to correspond to the rear end side of the elevator block base 44. The push switch 117 is provided in the elevator block base 44.
Is pushed by the elevator block base 44 when it reaches the disc loading position which is the most lowered position. Therefore, by counting the number of times the press switch 118 is pressed by the second cam plate 23 after the press switch 117 is pressed by the elevator block base 44, the current state of the elevator block base 44 is calculated. The height position can be detected.

As described above, in the elevator mechanism having the first and second cam plates 24 and 23, depending on whether the rotation driving direction of the elevating motor 116 is normal rotation or reverse rotation. The elevator block base 44 can be operated to move up or down.

That is, as shown in FIG. 16, when the drive cam gear 41 is in the initial state (0 ° position), the first cam plate 24 is in the initial position and the support pins 47, 48 are It is assumed that the cam slit 33 is located at the nth horizontal portion 33n from the bottom. Then, when the drive cam gear 41 starts to rotate and reaches the 30 ° position which is rotated clockwise by 30 °, the second cam plate 23 becomes the support position as shown in FIG. .
That is, the support pins 47 and 48 are supported by the n-th contact support portion 31n. Then, the drive cam gear 4
18, the second cam plate 23 is still in the support position and the support pins 47 and 48 are in contact with the cam slit 3 as shown in FIG.
Although it is located at the branch point of No. 3, it is supported by the n-th contact support portion 31n and does not move downward.

When the drive cam gear 41 is at the 90 ° position, as shown in FIG. 19, the second cam plate 2 is moved.
Although 3 is about to move from the supporting position to the non-supporting position, the supporting pins 47 and 48 are about to pass the branch point of the cam slit 33 and reach the first inclined portion. When the drive cam gear 41 is in the 120 ° position, the second cam plate 23 is in the unsupported position as shown in FIG.
The reference numerals 7 and 48 have already passed the branch points of the cam slit 33, and are supported on the inclined portion in the cam slit 33. When the drive cam gear 41 is at the 150 ° position, as shown in FIG.
Is a horizontal portion (33 (n +
It is located in 1)).

Then, as shown in FIGS. 22 and 23,
When the drive cam gear 41 is in the 180 ° position, the first cam plate 24 is in the operating position and the support pin 4
7, 48 are supported on the horizontal portion. When the drive cam gear 41 further rotates to the 210 ° position, the second cam plate 23 becomes the supporting position as shown in FIG. That is, the support pins 47, 48 are
Are supported by the contact support portion. When the drive cam gear 41 is in the 240 ° position, the second cam plate 23 is still in the supporting position as shown in FIG. Although it is located at the branch point of 33, it is supported by the contact support portion and does not move downward.

When the drive cam gear 41 reaches the 270 ° position, as shown in FIG. 26, the second cam plate 23 is about to move from the supporting position to the non-supporting position. , 48 pass through the branch point of the cam slit 33 and are about to reach the inclined portion. When the drive cam gear 41 reaches the 300 ° position, as shown in FIG. 27, the second cam plate 23
Is the unsupported position, but the support pins 47,
48 has already passed the branch point of the cam slit 33,
It is supported on the slope. The drive cam gear 41 is 3
At the 30 ° position, as shown in FIG. 28, the support pins 47 and 48 are located near the horizontal portion. The driving cam gear 41 is further rotated by 30 °, and as shown in FIG.
Returning to the ° position, the first cam plate 24 reaches the initial position, and the support pins 47 and 48 are located at the (n + 2) th horizontal portion 33 (n + 2) from the bottom of the cam slit 33. .

That is, since the drive cam gear 41 makes one full turn in the clockwise direction (forward direction), the support pins 47, 48 move from the nth horizontal portion 33n of the cam slit 33 to the horizontal portion 33n. Horizontal part 3 directly above
3 (n + 2). In this way, as the drive cam gear 41 continues to rotate in the positive direction, the elevator block base 44 is sequentially moved upward.

When the drive cam gear 41 is rotated in the reverse direction, the process shown in FIG. 29 is reversed from the process shown in FIG. 16, that is, the support pin 4 shown in FIG.
When the support pins 47 and 48 shown in FIG. 16 are located at the horizontal portion 33 (n + 2),
By reaching the state of being located at n, the elevator block base 44 is moved downward. Therefore, as the drive cam gear 41 continues to rotate in the opposite direction, the elevator block base 44 is sequentially moved downward.

In this elevator mechanism,
The elevator block base 44 is the chassis 1
The tension coil spring 96 is stretched between the spring retaining portion 97 provided on the bottom plate portion 2 and is urged to move downward. Therefore, even when the chassis 1 is laid down sideways, It is surely moved and operated in a predetermined direction according to the rotation direction of 116.

[5] Configuration of Elevator Block (FIGS. 1 to 3, FIG. 8 to FIG. 14, FIG. 32 to FIG. 43, FIG. 45 to FIG. 51) (5-1) Elevator Block and Main Tray Elevator Block Base 44 The elevator block configured to have a plurality of optical discs 301 located above the disc drive unit 5, placed on the sub-tray 14 and stored in the disc stocker 8.
The disk holding mechanism can be selectively opposed to the disk holding mechanism. In addition, the elevator block base 44
Serves as a base member that movably supports a main tray 75 described later. As described above, the elevator block base 44 is supported and disposed between the side wall portions 3 and 4 by the elevator mechanism via the support pins 47, 48, 47, 48.

The elevator block base 44 has a notch portion 46 open to the rear side in the central portion,
The sub tray 14 is formed in a substantially flat plate shape slightly larger than the sub tray 14. As shown in FIG. 3, the elevator block base 44 has an elevator block top 6 on the upper surface side.
The elevator block is configured by attaching 7 to the elevator block. This elevator block top 67
It is formed in a substantially flat plate shape having a cutout portion in the central portion on the rear side, and both side portions are attached to the elevator block base 44 by a plurality of setscrews 65. That is, each of the set screws 65 is inserted in correspondence with the plurality of screw insertion holes 66 formed in both side portions of the elevator block top 67, and the plurality of set screws formed in both side portions of the elevator block base 44. Screw boss 64
It is screwed in according to.

A chucking plate 68 is rotatably attached to the central portion of the elevator block top 67. The chucking plate 68 is formed in a disk shape having substantially the same size as the disk table 6, and is located directly above the disk table 6.
The chucking plate 68 faces the lower side through the notch 46 of the elevator block base 44 and faces the disc table 6.

The elevator block base 44 and the elevator block top 67 are fastened to each other only at both side portions to form a space between them. The space between the elevator block base 44 and the elevator block top 67 is open to the front side and the rear side. A main tray 75 is arranged in the space between the elevator block base 44 and the elevator block top 67.

The main tray 75 is formed in a thin casing shape in which the central portion on the upper surface side and the lower surface side and the rear side are opened, and the sub tray 14 can be inserted from the rear side. As shown in FIGS. 9 and 12, the sub-tray 14 accommodated in the main tray 75 has the large-diameter recessed portion 124 through the notch 76 that opens the central portion on the upper surface side of the main tray 75.
To the outside and above.

The main tray 75 is moved in the front-rear direction while being supported by the pair of guide rail portions 49 and 50 formed in the front-rear direction on both sides of the upper surface of the elevator block base 44 on the lower surfaces on both sides. It is possible.
As shown in FIGS. 13 and 37, the main tray 75 has a position accommodated between the elevator block base 44 and the elevator block top 67, and FIG.
Further, as shown in FIG. 38, it is possible to perform a moving operation between the elevator block base 44 and the elevator block top 67 and a position protruding forward from the elevator block top 67. Since the elevator block is always in the upper position of the disc drive unit 5, that is, in the play position, the main tray 75 can be moved between the play position and the eject position.

As shown in FIGS. 2, 35 and 36, a slider 88 is movable in the front-rear direction on one side portion of the main tray 75, as shown by an arrow A in FIG. It has been stored. This slider 88
Is formed in a linear rod shape having a length substantially corresponding to the side edge portion of the sub-tray 14, and is housed in the main tray 75 with the longitudinal direction being the front-rear direction. The slider 88 is movable between a position housed in the main tray 75 and a position protruding to the rear side of the main tray 75. That is, as shown in FIGS. 45 and 46, the slider 88 has a guide groove portion 157 along the longitudinal direction on the lower surface portion, and the guide groove portion 157 is provided on the bottom surface portion inside the main tray 75 so as to project. The guide rail portion 133 is fitted and supported so as to be movable in the front-rear direction.

The slider 88 corresponds to the main tray 7
An engaging projection 90 is provided on a side edge portion of the inner surface 5 that faces inward. The engagement projection 90 is for fitting and engaging with the engagement recess 15 of the sub-tray 15, and as shown in FIGS. 8 and 11, the slider 88 is in the main tray in the play position. When it is moved to the rear side of 75, it is located at a position corresponding to the engaging concave portion 15 of the sub-tray 14 housed in the disc stocker 8. In this state, the main tray 75, together with the elevator block, can be vertically moved up and down by the elevator mechanism over the disc selection position and the unloading position. When the lifting operation is performed in this manner, the engaging projection 90 passes vertically through the engaging recesses 15 of the sub trays 14.

When the elevator block is in the disc selecting position and the main tray 75 is in the playing position, the slider 88 protruding rearward from the main tray 75 is indicated by an arrow G in FIG. As shown in FIG. 12, when the slider 88 is moved to the front side and stored in the main tray 75, the slider 88 moves while the engagement protrusion 90 is engaged with the engagement recess 15. As shown, one sub-tray 14 is taken out from the disc stocker 8 and stored in the main tray 75.

The slider 88 corresponds to the main tray 7
When the sub tray 14 is stored in the main tray 7, the sub tray 14 is stored in the main tray 75.
5 is moved, that is, when the elevator block is in the unloading position, the sub-tray 14 is moved over the play position and the eject position as shown in FIGS. 13 and 14. . When the elevator block is lowered to reach the loading position while the sub-tray 14 is in the play position, the optical disc 301 placed on the sub-tray 14 is moved to the disc table 6 as shown in FIG. It is placed on the upper side and separated from the sub-tray 14, and is sandwiched by the disc table 6 and the chucking plate 68, and is in a state of being rotated by the spindle motor. At this time, the disc table 6 and the optical pickup device 7 enter the main tray 75 through the notch 80 that opens the central portion of the lower surface of the main tray 75.

Further, the slider 88 returns the sub tray 14 to the stock position by being moved rearward with respect to the main tray 75 in the state where the main tray 75 is in the play position. The relationship between the height position of the elevator block and the position of the sub-tray 14 or the slider 88 is shown in the table below [Table 1].

[0077]

[Table 1]

(5-2) Power Transmission Means The power transmission means for moving the main tray 75 and the slider 88 is provided on the elevator block base 44. That is, as shown in FIGS. 35 to 38, a pull-in motor 51 serving as a driving force source is attached to one side portion of the lower surface of the elevator block base 44. A drive pulley 52 is attached to the drive shaft of the pull-in motor 51. The drive pulley 52 has two belt hooking grooves arranged in the axial direction. A first drive belt 143, which is a first friction member that constitutes a first power transmission means, is provided in one belt hooking groove of the drive pulley 52.
Is wrapped around. A second drive belt 144, which is a second friction member that constitutes second power transmission means, is wound around the other belt hooking groove of the drive pulley 52. The first power transmission means is for transmitting the driving force of the pull-in motor 51 to the main tray 75 to move the main tray 75. On the other hand, the second power transmission means is for transmitting the driving force of the pull-in motor 51 to the slider 88 to move the slider 88.

The first driving belt 143 transmits the driving force of the retracting motor 51 to the first pinion gear 132 which constitutes the first power transmission means. That is,
The first drive belt 143 is wound around a first driven pulley 53 rotatably attached to the elevator block base 44 via a support shaft 147. A transmission gear portion 139 is integrally formed with the first driven pulley 53. The transmission gear portion 139 is provided on the support shaft 1
The transmission gear 55 is rotatably attached to the elevator block base 44 via 46. The transmission gear 55 is integrally formed with a small-diameter gear portion 140. The small-diameter gear portion 140 is meshed with the first pinion gear 132 rotatably attached to the elevator block base 44 via a support shaft 145. The first pinion gear 132 meshes with the first rack gear 81 formed on the lower surface of the main tray 75 through a through hole formed on the front side of the bottom surface of the elevator block base 44.

On the other hand, the second drive belt 144 transmits the driving force of the pull-in motor 51 to the second pinion gear 57 which constitutes the second power transmission means. That is, the second drive belt 144 is wound around the second driven pulley 54 rotatably attached to the elevator block base 44 via the support shaft 148. The second driven pulley 54 has a transmission gear portion 141.
Are integrally formed. The transmission gear portion 141 is
The elevator block base 44 via the support shaft 149
It meshes with a transmission gear 56 that is rotatably attached to. The transmission gear 56 is integrally formed with a small-diameter gear portion 142. The small-diameter gear portion 142 is provided on the support shaft 15
It meshes with the second pinion gear 57 that is rotatably attached to the elevator block base 44 via 0. The second pinion gear 57 meshes with the second rack gear 130 formed on the lower surface of the slider 88 via a through hole formed on the rear side of the bottom surface of the elevator block base 44.

As shown in FIG. 46, the first rack gear 81 constituting the first power transmission means is formed on one side of the lower surface of the main tray 75 in the front-rear direction. There is. Further, the second rack gear 130 that constitutes the second power transmission means is provided with the slider 8
A notch 15 formed in the lower surface of the main tray 75 in the front-rear direction and formed in the rear portion of the bottom plate of the main tray 75.
It faces the lower side through 6.

When the main tray 75 is located from the eject position to the vicinity of the play position, the first rack gear 81 is engaged with the first pinion gear 132 as shown in FIG. The driving force of the pull-in motor 51 is transmitted. When the main tray 75 reaches the play position, as shown in FIGS.
The transmission of the driving force is interrupted by releasing the meshing of the rack gear 81 with the first pinion gear 132.

Further, when the slider 88 is at a position where the sub-tray 14 is located from the play position to the stock position, the second rack gear 130 is moved to the second position as shown in FIGS. 35 to 37. The driving force of the pull-in motor 51 is transmitted by meshing with the second pinion gear 57. When the sub-tray 14 is moved from the play position to the eject position side, the slider 88 releases the engagement of the second rack gear 130 with the second pinion gear 57 as shown in FIG. By doing so, the transmission of the driving force is blocked.

It should be noted that at least one of the first pinion gear 132 and the second pinion gear 57 always corresponds to the corresponding first and second rack gears 81,
It meshes with 130. When the main tray 75 is in the disc selection position, the second power transmission means moves the sub-tray 14 with respect to the main tray 75 via the slider 88 to move the sub-tray 14 to the main tray 75. The storage in the disk stocker 8 and the removal of the sub-tray 14 from the disk stocker 8 are performed.

(5-3) Locking Mechanism for Main Tray and Sub Tray The slider 88 is located at the lower surface of the elevator block top 67 and at the position facing the slider 88.
As shown in FIGS. 11 to 14 and FIGS. 39 to 43, a first cam groove 69 is formed over a portion rearward of the front end edge of the elevator block top 67. The first cam groove 69 is provided on the play position side,
That is, the vicinity of the end portion on the rear end side is the first lock portion 70 that is bent at a substantially right angle in a hook shape.

On the upper surface of the slider 88,
The second cam groove 92 is formed in parallel with the first cam groove 69 in the front-rear direction. That is, the second cam groove 92 is formed in the main tray 7 of the slider 88.
It is formed along the moving direction with respect to 5. This second
The cam groove 92 has a second lock portion that is bent in a hook shape at an angle of approximately 45 ° to 60 ° on the stock position side, that is, near the rear end side.

The second cam groove 92 is formed at a position corresponding to the tip of the first lock portion 70. The first cam groove 69 is located at a position corresponding to the tip of the second lock portion.

At a position on the rear side of the upper surface of the main tray 75 and above the slider 88,
A lock lever 84 is rotatably attached. The lock lever 88 is rotatably supported around the support shaft 82 by inserting a support shaft 82 projecting from the upper surface of the main tray 75 into the support hole 85 on the base end side, and the front end side is forward. It is extended to the side. At the tip end side of the lock lever 84, a first lock pin 87 is provided so as to project upward, and a second lock pin 86 is provided so as to project downward. The lock pins 87 and 86 are coaxial with each other. The first lock pin 87 is fitted and engaged with the first cam groove 69. Further, the second lock pin 86 is fitted and engaged with the second cam groove 92 through the through hole 83 formed in the upper plate portion of the main tray 75.

The lock lever 84 corresponds to the slider 8
39, when the sub tray 14 is located at a position from the play position to the stock position, FIG.
And, as shown in FIG. 40, the front end side is engaged with the first lock portion 70 to prevent the main tray 75 from moving with respect to the elevator block top 67. At this time, the slider 88 moves the second lock pin 86.
It is movable with respect to the main tray 75 along the linear portion of the second cam groove 92, and conveys the sub tray 14 from the stock position to the play position.

Then, the slider 88 is moved to the front side by a slight distance after the sub-tray 14 is conveyed to the play position. This movement is a distance of so-called play (backlash) of the engagement projection 90 with respect to the engagement recess 15. That is, the bottom protrusion 90
Is slightly narrower than the width of the engaging recess 15. Thus, when the slider 88 is slightly moved forward after the sub-tray 14 is set to the play position, the second lock pin 8 is moved as shown in FIG.
6 is pressed by the inclined portion of the second lock portion,
It is moved to the tip of this second lock part. That is,
At this time, the lock lever 84 is rotated and the first lever
The lock pin 87 is pulled out from the first lock portion 70 and is located at the rear end portion of the linear portion of the first cam groove 69. In this state, the main tray 75 with respect to the elevator block top 67,
It is possible to move to the front side, that is, the eject position side.

When the main tray 75 is in the position from the vicinity of the play position to the eject position, the lock lever 82 causes the second lock pin 86 to move to the second position as shown in FIGS. 42 and 43. The second lock portion is engaged with the second lock portion to prevent the slider 88 from moving with respect to the main tray 75. That is, in this state, the sub-tray 14 is prevented from slipping out to the rear side of the main tray. The main tray 75 is movable to the front side up to the eject position while the first lock pin 87 is arranged along the linear portion of the first cam groove 69.

(5-4) Sensor for Position Detection A first sensor 59 is provided on the elevator block base 44 as shown in FIGS. 11 to 14. The first sensor 59 is a photo interrupter, and detects the detected protrusion 91 provided on the lower surface of the slider 88. This first sensor 59 is
As shown in FIG. 52, when the slider 88 sets the sub-tray 14 to the play position, and when the slider 88 is in a range that can be moved by a play (play) with respect to the sub-tray 14, The ON state (upper side in FIG. 52) is set. This first
In the sensor 59 of FIG.
When 4 is not in the above-mentioned play position, it is turned off (lower side in FIG. 52).

Further, the elevator block top 67 is also provided.
Is provided with a second sensor 103. This second
The sensor 103 is a press switch and detects the rotational position of the lock lever 82. That is, this second
The sensor 103 is disposed at a position lateral to the tip end side portion of the lock lever 82 when the main tray 75 is at the play position. As shown in FIGS. 11 and 12, the second sensor 103 is in an ON state as shown in FIG. 52 until the slider 88 conveys the sub-tray 14 from the eject position to the play position. I am doing it. Then, the second sensor 103 is moved to the front side by an amount of play (play) with respect to the sub-tray 14 after the slider 88 sets the sub-tray 14 to the play position, as shown in FIG.
As shown in FIG. 52, when the lock lever 82 is rotated, it is turned off as shown in FIG.

That is, the fact that the second sensor 103 is in the ON state indicates that the slider 88 is in a position where the sub-tray 14 is located between the play position and the stock position. Further, the fact that the second sensor 103 is in the OFF state means that the slider 88 is
Indicates that the sub-tray 14 is located between the play position and the eject position.

Also, the elevator block base 44
A stock detection switch 60 for detecting that the slider 88 sets the sub-tray 14 to the stock position is arranged in the above. The stock detection switch 60 is located at a rear position on one side of the upper surface of the elevator block base 44, that is, the main tray 75.
It is arranged at the rear of the slider 88 housed in. In the stock detection switch 60, as shown in FIG. 11, the slider 88 has the main tray 75.
When the sub-tray 14 is projected further rearward to bring the sub-tray 14 to the stock position, it is pressed by the pressing protrusion 93 formed on the lower surface of the slider 88 to be turned on. When the stock detection switch 60 is turned on, the pull-in motor 51 is stopped by the control means from rotating in the direction of moving the slider 88 rearward.

Further, the elevator block base 4
4 is an eject detection switch 58 for detecting that the main tray 75 is in the eject position.
Is provided. This eject detection switch 58
Is disposed at a front position on one side of the upper surface of the elevator block base 44. This eject detection switch 58 is, as shown in FIG.
When 5 is projected forward from the elevator block base 44 to bring the sub tray 14 to the eject position, it is pressed by the rear end portion of the main tray 75 to be turned on. When the eject detection switch 58 is turned on, the pull-in motor 51
Is stopped by the control means in the direction of moving the main tray 75 forward.

A sensor for detecting the presence / absence of the optical disk 301 on the sub-tray 14 is provided in the elevator block. That is, the light emitting element 62 is disposed at a front side position substantially in the center of the upper surface portion of the elevator block base 44. The light receiving element 63 is provided on the lower surface of the elevator block top 67 at a position facing the light emitting element 62.
Is provided. Then, the main tray 75 and the sub-tray 14 are provided with disc detection through holes 78 and 123 at positions corresponding to the light emitting element 62 and the light receiving element 63, respectively, when they are in the play position. The light receiving element 63 detects the presence / absence of the optical disk 301 on the sub tray 14 depending on whether or not the light flux from the light emitting element 62 is received when the main tray 75 and the sub tray 14 are in the play position. To do.

The disc changer device is
It has a control means (control circuit) for controlling the drive of the pull-in motor 51. When the first sensor 59 detects that the slider 88 is in the position where the sub-tray 14 is the play position when the power is turned on, this control means does not drive the pull-in motor 51. If the first sensor 58 does not detect that the slider 88 is in the play position of the sub-tray 14 when the power is turned on, the control means does not detect the second sensor 103. In accordance with the detection result, the slider 88 drives the motor until the sub-tray 14 reaches the play position or the position where the stock position is established. That is, in this disc changer device, the sub-tray 14 is always held or conveyed at the stock position or the play position when the power is turned on.

In this disc changer device, in order to reproduce the optical disc 301, the presence of the optical disc 301 on the sub-tray 14 is detected by the light receiving element 63, and the first sensor 59 is turned on. Therefore, it is necessary to detect that the sub tray 14 is in the play position. When the main tray 75 accommodating the sub-tray 14 is moved from the eject position to the play position, and when the sub-tray 14 is moved from the stock position to the play position, the first sensor 59 is turned on. When the state is reached, the pull-in motor 51 is stopped. At this time, the slider 88 has a play (play) with respect to the sub-tray 14, and the position of the sub-tray 14 with respect to the main tray 75 is compensated by a locking mechanism for the sub-tray 14 described later. Even if there is a slight error in the timing of stopping the pull-in motor 51, the sub-tray 14
It is accurately held at a predetermined position with respect to the main tray 75.

Since the reproduction of the optical disc 301 is executed, the presence of the optical disc 301 on the sub-tray 14 is detected by the light receiving element 63, and the first sensor 59 is turned on. In addition, under the condition that the second sensor 103 is also turned on, when the main tray 75 accommodating the sub-tray 14 is moved from the eject position to the play position, the first Sensor 59 and second sensor 1
When 03 is turned on, the pull-in motor 5
1 is a stop operation, and the positioning of the main tray 75 is more accurate.

(5-5) Lock Mechanism for Sub Tray The main tray 75 is provided with a lock mechanism for locking the sub tray 14 accommodated in the main tray 75 in the accommodated state. This lock mechanism has an engagement member 105 movably arranged on the lower surface of the front side of the main tray 75. This engaging member 105 is
As shown in FIG. 11, a pair of engagement slits are provided, and a pair of support pins 135 and 136 projectingly provided on the main tray 75 are inserted into and engaged with the engagement slits, whereby the main tray 75 is inserted. On the other hand, it is supported so as to be movable in the lateral direction. The engaging member 105 is urged to move toward the center of the main tray 75 by a tension coil spring 108 which is an elastic member. The tension coil spring 108 is a spring locking pin 1 provided on one end side of the engaging member 105 and the lower surface of the main tray 75.
It is stretched between 38. This engaging member 105 is
A hook-shaped portion 107 facing rearward is provided on one end side where the tension coil spring 108 is locked, and an engaging projection portion 106 is provided on the other end side. The engaging protrusion 106 enters the main tray 75 through a through hole formed in the bottom plate of the main tray 75.

The sub tray 1 is attached to the main tray 75.
4 is stored, the engaging member 105 is acted on by the urging force of the tension coil spring 108.
The engaged projection 106 is engaged with the engaged recess 104, which is the engaged portion of No. 4, and the sub-tray 14 is locked in the stored state. When the sub tray 14 is moved in and out of the main tray 75, the engaging member 105
By sliding the engagement protrusion 106 to the edge of the front end of the sub-tray 14 or the edge of the engaged recess 104, the engaging projection 106 is moved against the biasing force of the tension coil spring 108, and the engagement is performed. The mating protrusion 106 is formed into the engaged recess 1
04 to enter or leave.

A lock member 109 is rotatably disposed on the lower surface of the main tray 75 via a support shaft 134 protruding from the lower surface of the main tray 75. The lock member 109 has a hook-shaped portion 111 facing the front side for engaging with the hook-shaped portion 107 of the engaging member 105 at one end side. This locking member 109
Is the hook-shaped portion 111 of the engaging member 105.
The first rotation position for engaging with 07 and the second rotation position for moving the hook-shaped portion 111 rearward to separate it from the hook-shaped portion 107 of the engaging member 105 It is movable. That is, the lock member 109 prevents the engagement member 105 from moving against the biasing force of the tension coil spring 108 in the first rotation position, and the lock member 109 in the second rotation position. The blocking of the movement with respect to the engaging member 105 is released.

The lock member 109 is rotated in conjunction with the movement of the main tray 75. That is, the lock member 109 is moved to the first position by the tension coil spring 113 stretched between the other end portion and the latch pin 137 projecting from the lower surface of the main tray 75. It is biased to rotate. And, at the front side position of the upper surface portion of the elevator block base 44,
An abutting piece 61 for abutting the abutted pin 112 hanging from the other end of the lock member 109 is provided in a protruding manner. When the main tray 75 is at the play position, the contact piece 61 contacts the contacted pin 112 to pull the lock member 109 and pull the coil spring 1.
It is rotated to the second rotating position against the urging force of 13. That is, the lock member 109 is set to the second position when the main tray 75 is in the play position, and allows the engagement member 105 to move. Then, the lock member 109 is set to the first position when the main tray 75 is moved to the eject position side from the play position, and prevents the engagement member 105 from moving.

Therefore, when the main tray 75 is in the play position, the sub-tray 14 can be put in and taken out. Prevent.

(5-6) Display Section A confirmation window section 77 is formed at the other front side of the upper plate section of the main tray 75. This confirmation window 77
Is a through hole communicating with the inside of the main tray 75, and the sub tray 14 accommodated in the main tray 75.
The display portion 17 of is exposed to the outside. The display unit 17
Is a code that is provided on each of the sub-trays 14 and that allows the sub-trays 14 to be distinguished from each other, such as a number, an alphabet, or other symbols or colors.

Therefore, in the main tray 75, when the eject position is set, it is possible to visually recognize which of the sub trays 14 the storage tray 8 has stored. can do.

(5-7) Rotating Lever Mechanism The rear surface portion of the elevator block top 67, that is, the surface portion facing the disk stocker 8 is shown in FIG.
7 to 51, as shown in FIG. 51, a pair of left and right support shafts 98, 98.
Is projected. A pair of turning lever members 99, 99 are attached to the support shafts 98, 98 in a corresponding manner. That is, these pivot lever members 99 have support shaft insertion holes 161 through which the support shaft 98 is inserted and engaged at the base end side.
By having the support shaft 98 inserted into and engaged with the support shaft insertion hole 161, the support shaft 98 is rotatably supported around the support shaft 98.

The rotating lever members 99, 99 are torsion coil springs 100, 100 serving as rotating biasing members, respectively.
Thus, as shown by an arrow Q in FIG. 49, the tip end side is rotationally biased in a direction toward the outside via the upper side of the elevator block top 67. The torsion coil spring 1
As shown in FIGS. 47 and 48, 00 has a coil portion wound around the support shaft 98, and the coil portion is interposed between the rotation lever member 99 and the elevator block top 67, One of the arms is connected to the rotation lever member 9
9 is hooked on the hooking portion 102, and the other arm is hooked on the hooking piece 159 formed on the elevator block top 67.

Then, the rotary lever members 99, 99
Slide pins 101, 101 protruding toward the rear side are provided on the tip side of the. These slide pins 101, 101 are slidably engaged with a pair of left and right slits 13, 13 formed in the front part of the upper part of the disc stocker 8. These slits 13 and 13 are aligned with each other and are symmetrical with respect to the center of the disk stocker 8 and are formed in the horizontal direction. When the elevator block is moved up and down, the slide pins 101, 1
01 slides horizontally in the slits 13, 13. That is, the lever members 99, 99 are moved by the biasing forces of the torsion coil springs 100, 100 as shown in FIG.
9. As indicated by the middle arrow R, the elevator block is urged to move downward with respect to the chassis 1 in the direction toward the bottom plate 2.

As shown in FIGS. 8 to 10, the tip end side of each of the turning lever members 99, 99 is formed by a pair of support piece portions 95, 95 hanging from the rear edge portion of the top plate portion 71.
It is prevented from separating from the disc stocker 8,
The slit 1 of each slide pin 101, 101
It is prevented from falling off from Nos. 3 and 13.

Incidentally, the elevator block top 67
A pair of holding claws 160, 160 is provided at a position on the rear surface portion near the support pins 98, 98.
These holding claws 160, 160 have the support shaft 9 on the tip side.
It has a hook-shaped portion facing 8,98. These holding claws 1
Reference numerals 60 and 160 support the rear edge portions of the respective pivot lever members 99 and 99 on the base end side by the hook-shaped portions so that the pivot lever members 99 and 99 can be removed from the spindles 98 and 98. To prevent. These holding claws 160, 160 are provided with the turning lever members 99, 9 when the turning lever members 99, 99 are attached to the support shafts 98, 98.
It is pressed by 9 and elastically displaced to the side separated from the support shafts 98, 98, so that the turning lever members 99, 99 can be attached to the support shafts 98, 98.

The rotary lever members 99, 99 are pivotally operated to a symmetrical position in conjunction with the elevator block raising / lowering operation, and the elevator block is urged downward by moving the elevator block. Smooth movement of elevator blocks. Also, these rotating lever members 9
9 and 99 are located on the front side of the disc stocker 8 to prevent the sub tray 14 from falling off the disc stocker 8 to the front side.

The rotary lever members 99, 99
In the state in which the elevator blocks are not yet attached to the chassis 1 in the state in which they are attached to the support shafts 98, 98, as shown in FIG. The urging force positions the outermost position in the rotatable range. Therefore, at this time, the rotary lever members 99, 99 are not rotated by vibration or gravity, and the elevator block is easily handled. Further, each of the above-mentioned rotation lever members 99, 99 is
Since the coil portion of the torsion coil springs 100, 100 is interposed between the elevator block top 67 and the elevator block top 67, it is possible to move in a direction tilting with respect to the support shafts 98, 98, and the chassis 1 has already been moved. This facilitates inserting the slide pins 101, 101 into the slits 13, 13 of the disc stocker 8 mounted above.

[6] Operation of Disc Changer Device In the disc changer device configured as described above, first, when the power is turned on, the first sensor 5 is activated.
The control means 9 determines whether the slider 88 is in the position where the sub-tray 14 is at the play position. If the slider 88 is at a position where the sub-tray 14 is in the play position, the control means does not drive the pull-in motor 51. If the slider 88 is not in the position where the sub-tray 14 is in the play position, the control means drives the pull-in motor 51 in accordance with the detection result of the second sensor 103 to engage the slider 88. The combined sub-trays 14 are transported to the play position or the stock position. At this time, which of the play position and the stock position the sub-tray should be transported to is determined in advance as an operation program of the control means.

Then, the control means drives the elevating motor 116 to move the elevator block to the lowermost position. At this time, the pressing switch 117 on the chassis 1 is pressed, and it is detected that the elevator block is at the lowermost position and that the second cam plate 23 is at the unsupported position. The count of the pressure switch 118 for resetting is reset to zero. After that, the height position of the elevator block is detected by integrating or subtracting the number of pressings of the pressing switch 118 according to the rotation direction of the lifting motor 116.

A plurality of sub-trays 14 stored in the disk stocker 8 are selectively stored in the main tray 75. That is, as shown in FIG. 32, when the slider 88 is in the position where the sub-tray 14 is at the stock position, the elevator block is moved up and down in the disc selection position, so that the sub-tray 14 is selected. To be done. Then, by moving the slider 88 to the front side, the selected sub-tray 14 is stored in the main tray 75 and is set to the play position. At this time, the optical disc 3 is stored in the sub-tray 14 housed in the main tray 75.
If 01 is loaded, the optical disc 301 can be mounted on the disc drive section 5 or ejected. At this time, the optical disc 30 is stored in the sub-tray 14 stored in the main tray 75.
If No. 1 is not loaded, it is possible to set the sub-tray 14 to the eject position and load the optical disc 301 to the sub-tray 14.

To mount the optical disk 301 in the disk drive section, the elevator block is
As shown in FIG. 34, the loading position is close to the disk drive unit 5. The optical disc 301 held on the sub-tray 14 in which the main tray 75 is housed is sandwiched between the disc tray 6 and the chucking plate 68, and mounted on the disc drive unit 6.

Further, in order to bring the sub-tray 14 to the eject position, the elevator block is set as shown in FIG.
The unloading position is set as shown in FIG.
As shown in FIG. 53, the main tray 75 accommodating the sub tray 14 can be moved to the eject position via a disc insertion hole 154 formed in the front surface of the outer casing 155. When the main tray 75 is in the eject position, the sub-tray 14 accommodated in the main tray 75 can be loaded and unloaded with the optical disk 301.

Then, the elevator block moves the main tray 75 accommodating the sub-tray 14 to the play position again and then moves to the loading position, whereby the optical disc 301 loaded on the sub-tray 14 is moved to the above-mentioned position. It can be mounted on the disk drive unit 5. Further, the elevator block sets the main tray 75 accommodating the sub-tray 14 to the play position again and then to the disc selection position, whereby the sub-tray 14 accommodated in the main tray 75 is re-described above. It can be returned to a predetermined position in the disc stocker 8.

In this disc changer device, the unloading position may be any position different from the loading position and may overlap the disc selecting position. That is, as shown in FIG. 54, the disc insertion hole 154 is provided with the outer housing 1
It may be formed on the upper side portion of 55. The outer casing 155
As shown in FIGS. 53 and 54, the front panel of the
In addition to the disc insertion hole 154, a display device 165, operation parts 166, 167, etc. are provided. This operation unit 16
6,167 input operation to the control means,
The operation of each of the motors and the optical pickup device 7 is controlled. Further, the display device 165 displays the operating state of the disc changer device, that is, the identification number of the sub-tray 14 corresponding to the optical disc 301 being reproduced, the track number on the optical disc 301, and the playing time. It is a thing. Here, the fact that the unloading position can be freely set increases the degree of freedom in designing the front panel portion.

[0122]

As described above, in the disk storage device according to the present invention, the plurality of disk trays, which are held by the shelf members in the housing so that the distance between them is wider than the thickness of the disks, are held. The plurality of discs fitted in the formed recesses are prevented from falling out of the recesses by the disc pressing protrusions protruding from the inner wall portion of the housing part, so that the discs are surely detached from the housing part. Can be prevented.

Further, the disk storage device according to the present invention is
A plurality of disc trays each having a concave portion into which a disc is fitted and a protrusion provided at a side edge portion via a spring portion are stacked and housed in a housing portion whose front side is open. Since the projections are fitted into and engaged with the fitting recesses provided on the inner wall of the housing, it is possible to prevent the disks from coming off the housing, so that the disk can be securely placed in the housing. Can be held.

That is, according to the present invention, it is possible to reliably hold a plurality of stored optical discs and a plurality of sub-trays on which these optical discs are mounted and loaded, and are suitable for use in the configuration of a disc changer device. A disk storage device can be provided.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a disc changer device which is a disc player device configured by applying the present invention.

FIG. 2 is an exploded perspective view showing configurations of a main tray and a slider of the disc changer device.

FIG. 3 is an exploded perspective view showing a configuration of an elevator block which is a base member of the disc changer device.

FIG. 4 is a perspective view showing a configuration of a disc stocker of the disc changer device.

FIG. 5 is a front view showing a configuration of the disc stocker.

FIG. 6 is a plan view showing a state in which a sub-tray is stored in the disc stocker with a part thereof cut away.

FIG. 7 is a plan view showing the shape of the sub tray.

FIG. 8 is a partially cutaway plan view showing a state in which the sub tray is in a stock position in the disc changer device.

FIG. 9 is a partially cutaway plan view showing a state where one sub-tray is at a play position in the disc changer device.

FIG. 10 is a partially cutaway plan view showing a state in which one sub-tray is at an eject position in the disc changer device.

FIG. 11 is a plan view showing a part of the elevator block, the main tray and the sub tray in a state where the sub tray is in the stock position in the disc changer device.

FIG. 12 is a plan view showing a part of the elevator block, the main tray and the sub-tray in a state where the sub-tray is in a play position in the disc changer device.

FIG. 13 is a plan view showing the elevator block, the main tray, and the sub-tray in a partially see-through state in a state where the sub-tray is in the play position and the slider is slightly moved to the eject position side in the disc changer device. Is.

FIG. 14 is a plan view showing a part of the elevator block, the main tray and the sub tray in a state where the sub tray is in an eject position in the disc changer device.

FIG. 15 is a side view showing the configuration of an elevator mechanism of the disc changer device in a see-through manner.

FIG. 16 is a side view showing a positional relationship of each cam plate in an initial state of each cam plate forming the elevator mechanism.

FIG. 17 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 30 ° in the elevator mechanism.

FIG. 18 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 60 ° in the elevator mechanism.

FIG. 19 is a side view showing the positional relationship between the cam plates when the drive cam gear rotates 90 ° in the elevator mechanism.

FIG. 20 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 120 ° in the elevator mechanism.

FIG. 21 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 150 ° in the elevator mechanism.

FIG. 22 is a side view showing the positional relationship between the cam plates when the drive cam gear rotates 180 ° in the elevator mechanism.

FIG. 23 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 180 ° in the elevator mechanism.

FIG. 24 is a side view showing the positional relationship between the cam plates when the drive cam gear rotates 210 ° in the elevator mechanism.

FIG. 25 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 240 ° in the elevator mechanism.

FIG. 26 is a side view showing the positional relationship between the cam plates when the drive cam gear rotates 270 ° in the elevator mechanism.

FIG. 27 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 300 ° in the elevator mechanism.

FIG. 28 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 330 ° in the elevator mechanism.

FIG. 29 is a side view showing the positional relationship of the cam plates when the drive cam gear rotates 360 ° in the elevator mechanism.

FIG. 30 is a graph showing a moving operation state of each cam plate in the elevator mechanism.

FIG. 31 is a graph showing a moving operation state of each cam plate in the elevator mechanism and a case where a phase shift direction between the cam plates is reversed.

FIG. 32 is a side view showing a state where the slider is in a position where the sub-tray is the stock position in the disc changer device.

FIG. 33 is a side view showing a state in which the sub tray is in the play position and the elevator block is in a position where the main tray can be moved to the eject position in the disc changer device.

FIG. 34 is a side view showing a state in which the sub tray is in the play position and the elevator block is mounting the disc on the disc reproducing portion in the disc changer device.

FIG. 35 is a side view showing the elevator block, the main tray, and the sub-tray in a state where the sub-tray is in the stock position in the disc changer device, with a part thereof being seen through and broken.

FIG. 36 is a side view showing the elevator block, the main tray, and the sub-tray in a state where the sub-tray is in the play position in the disc changer device, with some parts being transparent and broken.

FIG. 37 is a perspective view of the elevator block, the main tray and the sub-tray, showing the sub-tray in the play position and the slider slightly moved to the eject position in the disc changer device in a partially transparent and broken view. It is a side view.

FIG. 38 is a side view showing the elevator block, the main tray, and the sub-tray in a state where the sub-tray is in the eject position in the disc changer device, with parts of the perspective view and broken away.

FIG. 39 is an enlarged plan view of an essential part showing a positional relationship between the first and second cam grooves when the slider is in the stock position with the sub-tray.

FIG. 40 is an enlarged plan view of an essential part showing the positional relationship between the first and second cam grooves when the slider is in the play position with the sub-tray.

FIG. 41 is an enlarged plan view of an essential part showing a positional relationship between the first and second cam grooves when the slider is moved slightly to the eject position side from the position where the sub tray is the play position.

[FIG. 42] A first view when the slider sets the sub-tray to a position between a play position and an eject position.
FIG. 6 is an enlarged plan view of an essential part showing a positional relationship between the second cam groove and the second cam groove.

FIG. 43 is an enlarged plan view of an essential part showing a positional relationship between the first and second cam grooves when the slider sets the sub tray to the eject position.

FIG. 44 is an enlarged perspective view showing the shape of a drive cam gear that constitutes the elevator mechanism.

FIG. 45 is an enlarged rear view of essential parts showing a mounting state of the main tray and the slider.

FIG. 46 is an enlarged bottom view of an essential part showing a mounting state of the main tray and the slider.

[Fig. 47] Fig. 47 is an enlarged exploded plan view of essential parts showing the configuration of a mounting portion of the rotating lever member to the elevator block.

FIG. 48 is an enlarged plan view of an essential part showing the configuration of the mounting portion of the rotary lever member to the elevator block.

FIG. 49 is a front view of relevant parts showing a state of the rotating lever member when the elevator block is lowered.

FIG. 50 is a front view of relevant parts showing a state of the rotating lever member when the elevator block is raised.

FIG. 51 is a front view of relevant parts showing a state of the rotating lever member when the elevator block is removed.

FIG. 52 is a graph showing the detection timing of each sensor in the elevator block.

FIG. 53 is a front view showing the outer appearance from the front of the disc changer device.

FIG. 54 is a front view showing another example of the outer appearance from the front of the disc changer device.

[Explanation of symbols]

 1 Chassis 5 Disk Driver 8 Disk Stocker 11 Fitting Recess 12 Shelf Member 14 Sub-Tray 16 Projection 17 Display 41 Drive Cam Gear 44 Elevator Block Base 51 Retracting Motor 57 Second Pinion Gear 59 First Sensor 67 Elevator Block Top 69 First Cam groove 71 Top plate 75 Main tray 77 Confirmation window portion 81 First rack gear 84 Lock lever 88 Slider 92 Second cam groove 94 Claw portion 98 Spindle 99 Rotating lever member 100 Twisting coil spring 103 Second sensor 104 Covered Engaging portion 105 Engaging member 108 Elastic member 109 Locking member 119 Disc pressing protrusion 124 Large diameter concave portion 125 Small diameter concave portion 127 Spring portion 130 Second rack gear 132 First pinion gear 143 First driving belt 144 2 of the drive belt 160 holding claw 161 support shaft insertion hole 301 disc

Claims (2)

[Claims] 1. A casing part having a plurality of disc trays each having a concave portion into which a disc is fitted on one side thereof, and a plurality of disc trays are housed therein, and a protrusion is formed on an inner wall portion of the casing part. A shelf member that is formed and supports the other surface side portion of each disc tray housed in the casing portion, and that makes the gap between the disc trays wider than the thickness of the disc, and the casing portion. And a disc pressing protrusion that faces the one surface side of each disc tray supported by the shelf member, the disc pressing protrusions of the disc trays stored in the disc stocker. A disk storage device, which comes close to one surface side of a disk fitted in a recess and prevents the disk from falling out of the recess. 2. A plurality of disc trays each having a concave portion into which a disc is fitted and a protrusion provided at a side edge portion via a spring portion; A casing part that is stacked and accommodates a plurality of sheets, and a shelf member that is formed as a protrusion on the inner wall of the casing part and that supports the other surface side portion of each disk tray accommodated in the casing part. And a plurality of fitting recesses provided on the inner wall portion of the housing portion so as to correspond to the protrusions of the disc trays supported by the shelf members. A disc storage device, which prevents the disc tray from falling off from the casing part by fittingly engaging with the recess.