JPH07105612A - Optical disk cartridge loading device - Google Patents

Abstract

PURPOSE:To obtain a simple and compact loading mechanism excellent in vibration proof and operability in a tray type optical disk cartridge loading device. CONSTITUTION:A lock engaging part 6j, a damper 7, etc., are mounted on a frame unit 6 which is used as the base of a disk recording/reproducing device. Next, a chassis unit 5 including a driving motor 18 and a magnetic head 20 is floated through the damper 7. Further, an inside tray unit 4 is mounted on a guide unit 3 through a cam groove freely movably in the sliding direction and vertical direction. When the optical disk is loaded/unloaded, 1st and 2nd lock levers 12, 14 are engaged with the lock engaging part 6j to pull out the inside tray unit 4. When the optical disk is recorded/reproduced, the lock with the lock engaging part 6j is disengaged, then the chassis unit 5 becomes the high damping state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus which uses an optical disk cartridge for reproduction or recording / reproduction, and more particularly to an optical disk cartridge loading apparatus (hereinafter referred to as a loading apparatus) having an improved anti-vibration property.

[0002]

2. Description of the Related Art Conventional compact disc players, magnetic recording / reproducing devices (VTRs), DAT players, etc.
There is a system in which a recording medium such as a disc, a tape cassette, and a disc cartridge is placed on a tray that moves in and out of the loading device, and a loading mechanism for loading the recording medium into the loading device is provided. An example of such a loading mechanism is disclosed in JP-A-4-195856.

[0003]

In the conventional information recording / reproducing apparatus, the vibration-proof property of the loading device is a problem. Therefore, in the optical disk drive device, external vibrations and shocks received by the recording / reproducing system around the optical disk, the optical pickup, and the turntable are alleviated by using springs and dampers.

In order to ensure the ability of the optical pickup to follow the disc, it can be said that the space between the inner wall of the cartridge case and the optical disc is generally small. For this reason, in the information recording / reproducing apparatus, it is necessary to make the loading device a vibration-proof structure with an integrated system of the cartridge case.

Generally, the mounting surface of the optical disk cartridge in the tray is located between the cartridge case and the optical pickup, so that the mounting surface of the optical disk is sufficiently vibration-proof from the system of the optical disk cartridge or the optical pickup. It was difficult to install it in the required position.

The present invention has been made in view of the above-mentioned conventional problems, and when the optical disk cartridge is placed on a tray and loaded, the optical disk cartridge and the performance mechanism section (recording / reproducing system) are loaded in a loading state. It is a first object of the present invention to realize a loading device in which the mechanism) is vibration-proofed and the front surface of the tray can be exposed to the outside.

In order to obtain good vibration isolation of the performance mechanism section, a damper must be provided between the frame of the information recording / reproducing apparatus and the optical disk cartridge and the performance mechanism section to damp external vibrations. In this case, the performance mechanism section can be moved slightly with respect to the frame. However, it is necessary to provide a lock mechanism in order to keep the positional relationship between the frame and the performance mechanism unit constant when the optical disc is loaded. A second object is to realize a loading device having such a lock mechanism.

When recording / reproducing an optical disk, the optical disk cartridge must be pressed and fixed to the chassis. A third object is to realize a loading device capable of realizing such a pressing and fixing mechanism with a reliable and compact structure.

[0009]

SUMMARY OF THE INVENTION The invention of claim 1 of the present application is an optical disk cartridge loading device for moving an optical disk cartridge between a mounting / removing position and a playing position, the internal tray unit holding the optical disk cartridge and the internal tray unit. Hold the unit so that it can be moved slightly in the loading direction, and the internal tray unit
The optical disc cartridge is set to the recording / reproducing position while the internal tray unit is held at the performance position.
A guide unit that is held at the height of the optical disc, a tray-shaped outer peripheral unit that is connected to or removed from the guide unit, and moves together with the guide unit between the attachment / detachment position and the playing position, and the tray outer peripheral unit is slidably guided. A chassis that includes a frame unit attached to the base of a cartridge loading device and a turntable on which an optical disc is placed, is attached to the frame unit via a damper, and slidably holds a guide unit to drive in a rotating direction. A unit, first and second lock levers rotatably attached to the chassis unit to lock the chassis unit to the frame unit, and cartridge pressing means attached to the chassis unit to press the optical disk cartridge during performance. Characterized by having A.

According to a second aspect of the present invention, there is provided an optical disk cartridge loading device for moving the optical disk cartridge between a mounting / removing position and a playing position, wherein an opening is formed at the center of a substantially rectangular flat plate and a rising part is formed around the flat plate. Is a U-shaped member formed of an internal tray unit for holding the optical disk cartridge, a left side portion and a right side portion, and a connecting plate for connecting them, and holds the internal tray unit so as to be finely movable in the loading direction, A guide for holding the internal tray unit at a first height at which the optical disk cartridge is attached / detached when the optical disk cartridge is loaded, and at the performance position where the internal tray unit is held at a second height where the optical disk cartridge serves as a recording / reproducing position. The unit and the outer peripheral frame are formed in a substantially rectangular shape, A drawer-shaped tray outer peripheral unit that is movably held and moves between the mounting / removing position of the optical disk cartridge and the playing position, and a member formed by the left side plate, the right side plate, and the bottom plate. The tray outer peripheral unit is slidably guided as a rail, and a frame unit mounted on the base of the optical disk cartridge loading device, a plurality of dampers mounted on the frame unit for absorbing vibration and shock in three axial directions, and an optical disk are mounted. Including a turntable to place
A chassis unit that is attached to a frame unit via a damper, holds a guide unit slidably, and drives in the loading direction; and a chassis unit that has a rotation shaft, an engaging portion, and a gear portion, and the rotation shaft. Mounted on the chassis unit via a pressing plate, and first and second lock levers that are rotatably attached to the frame unit and mechanically fix the chassis unit to the frame unit by engaging the engaging portion with the frame unit. And a cartridge pressing unit that is mounted and presses the optical disk cartridge when playing and releases the pressing when loading.

According to a third aspect of the present invention, there is provided an optical disk cartridge loading device for moving the optical disk cartridge between a removable position and a playing position, wherein the internal tray unit holding the optical disk cartridge and the internal tray unit can be finely moved in the loading direction. And a guide unit for holding the internal tray unit at a first height at the attach / detach position and for holding the internal tray unit at a second height at which the optical disc cartridge is at the recording / reproducing position at the playing position. A drawer-shaped tray outer peripheral unit that is coupled or disengaged with the guide unit to move between the attachment / detachment position and the playing position; and a frame unit that slidably guides the tray outer peripheral unit and is attached to the base of the optical disk cartridge loading device. Mounted on the frame unit It includes a plurality of dampers that absorb vibration and shock in three axial directions, and a turntable that mounts an optical disk. The damper is mounted on the frame unit via the dampers, and the guide unit is slidably held in the rotating direction. A chassis unit to be driven, first and second lock levers rotatably attached to the chassis unit and locking the chassis unit to the frame unit, and cartridge pressing means attached to the chassis unit to press the optical disk cartridge during performance. The inner tray unit is formed in a flat plate shape and holds the optical disk cartridge, and the guide unit is formed in a U shape formed of a left side portion and a right side portion and a connecting plate connecting them. The internal tray unit slides in the loading direction, In order to hold the internal tray unit at the first height at the cartridge attaching / detaching position and hold the internal tray unit at the second height at the playing position, the first slope-shaped parts formed on the left and right sides. Cam groove, a second cam groove provided in the connecting plate and oblique to the loading direction of the optical disk cartridge, a rack to which the sliding driving force is transmitted by the chassis unit, and a slide when driven in the loading direction by the rack A guide shaft and a guide groove to be a shaft and a sliding groove, a right guide and a left guide that slidably hold the tray outer peripheral unit, a rear side engagement pin that engages with the tray outer peripheral unit and gives a driving force in the loading direction, The tray outer peripheral unit is a member in which the outer peripheral frame is formed in a substantially rectangular shape, and is rotatably mounted on the left and right side portions of the outer peripheral frame. A rear side engagement receiver that is attached to and detached from the rear side engagement pin of the guide unit, a guide groove formed in a concave shape along the outer surface of the left and right side portions of the outer peripheral frame, and along the inner surface of the left and right side portions of the outer peripheral frame. The frame unit is a member formed of a left side plate, a right side plate, and a bottom plate, and is attached to the left side plate and the right side plate. Guide rollers and guide pins that engage with the guide grooves and slidably hold them, and guide rails that are formed on the edges of the left side plate and the right side plate to slidably guide the rear side engagement receiver and control its posture, The bottom of the bottom plate is provided upright and has a lock engaging portion in which a gavel-shaped engaging hole is cut out, and the chassis unit is attached to the frame unit via a damper. Slidably holding the knitting of the guide shaft, L slider formed into a rod, engage the Kaido grooves of the guide of the guide unit, which is formed in a plate shape R
A slider, a turntable on which an optical disc is mounted, and a drive gear that meshes with a rack of the guide unit and transmits a driving force in the loading direction to the guide unit. The first and second lock levers are provided on the chassis unit. The chassis unit is rotatably connected and fixed, and when engaged with the lock engagement portion of the frame unit, the chassis unit is fixed to the frame unit, and when not engaged with the lock engagement portion, the chassis unit is elastic with respect to the frame unit. The cartridge pressing means includes a plate-shaped pressing frame fixed to the frame unit, a slider slidably held in the loading direction and the up-down direction with respect to the pressing frame, and a loading operation by engaging with the slider. The optical disc cartridge is held movably in the vertical and vertical directions and can be played during performance. It is characterized in that those having a pressing plate, which presses the.

[0012]

According to the present invention having such a feature, the first and second lock levers are disengaged from the frame unit when the optical disk cartridge is in the playing position. Therefore, the internal tray unit on which the optical disk cartridge is placed and the guide unit for holding the internal tray unit are
It is coupled to the frame unit via a damper.
Since the damper is attached to the chassis unit so as to be elastically deformable, even if an external vibration impact is applied via the tray outer peripheral unit or the frame unit, the vibration is absorbed by the damper. When the tray outer peripheral unit moves from the playing position to the attaching / detaching position, the first and second lock levers engage with the frame unit, and the guide unit and the internal tray unit are pulled out to the attaching / detaching position of the optical disc cartridge. In this state, since the chassis unit is locked to the frame unit, the guide unit and the internal tray unit move with a degree of freedom only in the sliding direction. Therefore, when the optical disk cartridge is attached or detached, the positioning accuracy of the optical disk with respect to the turntable is sufficiently ensured. Also, the rigidity of the loading device can be obtained.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A loading device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing the overall configuration of the loading device of the present invention. 2 and 3 are exploded perspective views showing the arrangement of main constituent units of the loading device. As shown in FIGS. 2 and 3, the loading device moves the optical disc unit 1 to the mounting position and the playing position, respectively. The tray outer peripheral unit 2, the guide unit 3, the inner tray unit 4, the chassis unit 5, and the frame unit 6 are arranged. It is configured to include.

FIG. 4 shows an optical disk unit for reproduction, and FIG.
FIG. 3 is a perspective view showing a configuration of an optical disc unit for recording. As shown in FIG. 4A, a reproduction optical disc 1a
Are rotatably held by an optical disk cartridge 1b composed of an upper shell and a lower shell. Further, as shown in FIG. 4B, a circular opening 1c is provided at the center of the optical disc cartridge 1b, and a window 1d is provided at a position facing the signal recording surface of the optical disc 1a. The reproduction optical disk unit 1 has a window 1d on only one side, and a shutter 1e for opening and closing this portion is slidably attached.

On the other hand, in the optical disk unit 1 for recording shown in FIG. 5, windows 1d are provided on both sides of the optical disk cartridge 1b, and a shutter 1f for opening and closing the window 1d.
Is slidably mounted. When the shutter 1f is opened, the optical pickup scans one side of the optical disc 1a and the magnetic head scans the other side.

Next, the tray outer peripheral unit 2 shown in FIG. 2 (b) will be described with reference to FIGS. 6A is a plan view of the tray outer peripheral unit 2, FIG. 6B is a front view,
FIG. 6C is a partial cross-sectional view taken along the line CC of FIG. 7A and 7B show the tray outer peripheral unit 2
8 is a side view of the left side portion, and FIGS. 8A and 8B are side view of the right side portion. In the description of each of the units 2 to 6, when viewed from the front surface (operation surface) of the tray outer peripheral unit 2, a member on the right side is referred to as a right side portion, and a member on the left side is referred to as a left side portion.

The tray outer peripheral unit 2 is provided outside the loading device when the optical disk cartridge 1b is attached or detached (see FIG. 1).
Is a tray outer peripheral frame for projecting in the -X (left) direction and for mounting or ejecting the optical disk cartridge 1b.
As shown in FIG. 6A, the tray outer peripheral unit 2 includes a U-shaped outer peripheral frame 2a, a reinforcing plate 2b connecting the left side part and the right side part of the outer peripheral frame 2a, and the rear ends of the left side part and the right side part. The rear-side engagement receivers 2c are provided so as to be included. Recesses 2d are provided on the front side of the left and right sides of the outer peripheral frame 2a. The concave portion 2d has a sloped surface that is inwardly directed from the upper surface, and is a groove that can hold the edge thereof by hand when the optical disk cartridge 1b is taken out.

As shown in FIGS. 6B and 6C, the outer peripheral frame 2
A vertically downward guide groove 2e is formed on the left side of a. The guide groove 2e is a groove that fits with a guide pin of the frame unit 6, which will be described later, and has a function of restricting the lateral movement of the tray outer peripheral unit 2. Next in FIG.
(A) is a side view showing the outer surface of the left side portion of the outer peripheral frame 2a, and (b) is a side view showing the inner surface. 8A is a side view showing the inner surface of the right side portion of the outer peripheral frame 2a, and FIG.
FIG. 6 is a side view showing an outer surface. As shown in these figures,
Guide grooves 2f, which are concave outward, are horizontally provided on the right and left sides of the outer peripheral frame 2a. The guide groove 2f is a groove that fits with the guide roller of the frame unit 6. As shown in FIGS. 6 (c), 7 (a), and 8 (b), the guide groove 2f is formed over the entire tray outer peripheral unit 2 in the front-rear direction, and the tray outer peripheral unit 2 moves in the vertical direction. It regulates the

As shown in FIGS. 7 (b) and 8 (a), front side engagement receivers 2g are provided on the inner surfaces of the left and right sides of the outer peripheral frame 2a, respectively. The front side engagement receiver 2g is a concave groove, and engages with a front side coupling convex portion described later when the tray outer peripheral unit 2 is pressed to the playing position by the internal tray unit 4.

The rear side engagement receiver 2c is formed by integrally forming a U-shaped coupling member having a coupling groove cut out and an oval-shaped rotating arm. The rear side engagement receiver 2c is provided at the rear portion of the left and right portions of the outer peripheral frame 2a. It is rotatably attached via a shaft (not shown) provided. As shown in FIG. 6A, the rear side coupling receiver 2c is a member which is biased by a torsion coil spring 2h and which engages with a rear side engaging pin provided in the guide unit 3.
Further, as shown in FIGS. 7B and 8A, the pin 2i is press-fitted into the rotary arm of the rear side coupling receiver 2c so as to project to the outside of the outer peripheral frame 2a.

Next, the internal tray unit 4 will be described with reference to FIG. 9A is a plan view showing the structure of the internal tray unit 4, FIG. 9B is a left side view thereof, and FIG. 9C.
Is a right side view. The internal tray unit 4 is located in the opening portion for mounting the optical disk cartridge of the tray outer peripheral unit 2, and holds the lower surface of the optical disk cartridge 1b when the tray is pushed out of the loading device. The inner tray unit 4 has a plate thickness, for example.
It is a sheet metal part made of an iron plate of 0.5 mm, and is configured to include a substantially square flat plate-like portion and a rising portion around the flat plate-like portion so as to follow the outer shape of the optical disc cartridge 1b. As shown in FIG. 9A, a substantially rectangular opening 4 is formed in the center of the inner tray unit 4.
a is provided. Rising parts 4b, 4 located at the front and rear
Between c, the optical disk cartridge 1b shown in FIG. 4 and FIG.
It has the same width as the width X of the optical disk cartridge 1b and functions to hold the optical disk cartridge 1b at a fixed position together with the rising portions 4d and 4e on the left and right sides. Further, a pair of short pins 4f are horizontally provided in front of the left side portion and the right side portion of the inner tray unit 4, and a pair of long pins 4g are horizontally provided in the rear side. The pins 4f and 4g are first pins that fit into the cam grooves of the guide unit 3 described later.

Next, the guide unit 3 will be described with reference to FIG. FIG. 10 is a view showing the structure of the guide unit 3, (a) is a plan view thereof, (b) is a front view thereof,
(C) is a left side view and (d) is a right side view. The guide unit 3 is a tray outer peripheral unit 2 and an internal tray unit 4
At the same time, it is a constituent member of a tray which is pushed out of the loading device when the optical disk cartridge 1b is loaded. As shown in FIG. 10A, the guide unit 3 is a member in which a vertically long left guide 3a and a right guide 3b and a connecting plate 3c connecting these guides 3a and 3b are connected in a U-shape. The left guide and the right guides 3a and 3b are respectively made of resin, and as shown in the partial side view of FIG. 10 (a) and (c) and (d), two sets of first guides are provided before and after the inner side surface. The cam groove 3d is formed in a slope shape. The cam groove 3d is formed by integrally forming two long grooves parallel to the inserting direction of the optical disk cartridge 1b and a slant groove connecting them. The cam groove 3d is fitted with the pins 4f and 4g of the internal tray unit 4, so that the mounting surface of the optical disk cartridge 1b is placed above and below the first height, which is the attaching / detaching position, and the second height, which is the playing position. It's a slight movement.

As shown in the side view of FIG. 10 (c), a rack 3e is integrally formed on the outer surface of the left guide 3a. The rack 3e is a linear gear formed in the longitudinal direction of the left guide 3a and meshes with a drive gear (pinion) of the chassis unit 5 described later. 10 (a) and 10 (b)
As shown in FIG. 3, a guide shaft 3f is formed on the outer surface of the left guide 3a adjacent to the rack 3e along the loading direction.
Is installed. The guide shaft 3f is made of, for example, a stainless rod having an outer diameter of 3 mm, and is a cylindrical member that fits with an L slider of the chassis unit 5 described later. Next, rear side engagement pins 3g are horizontally mounted outward at the rear portions of the left guide 3a and the right guide 3b, respectively.

Further, a plate-shaped front side engaging projection 3h is formed in front of the left guide 3a and the right guide 3b.
The rear side engagement pin 3g engages with the rear side engagement receiver 2c of the tray outer peripheral unit 2. Further, the front side engaging convex portion 3h engages with the front side engaging receiver 2g of the tray outer peripheral unit 2. In this way, the guide unit 3 and the tray outer peripheral unit 2 are slidably connected in the directions of the arrows ± X shown in FIG.

As shown in FIGS. 10B and 10D, a guide groove 3i is horizontally formed on the outer surface of the right guide 3b of the guide unit 3. The guide groove 3i is a guide groove that engages with an R slider of the chassis unit 5 described later. As described above, the guide groove 3i and the guide shaft 3f engage with the R slider and the L slider of the chassis unit 5, respectively, so that the guide unit 3 can move in the front-rear direction with respect to the chassis unit 5.

As shown in FIGS. 10 (a), 10 (c) and 10 (d), the connecting plate 3c is a substantially rectangular sheet metal part made of, for example, a metal plate having a plate thickness of 0.8 mm. The connecting plate 3c is the left guide 3
a, fixed to the right guide 3b with a screw. Further, a resin plate 3k having a second cam groove 3j formed therein is attached to the central portion on the side facing the optical disk cartridge 1b. As shown in FIG. 1, the cam groove 3j is a groove oblique to the direction of the arrow X, and engages with a pin of a first lock lever of the chassis unit 5 described later to rotate the lock lever.

Next, the chassis unit 5 will be described with reference to FIG. 11A and 11B are views showing the structure of the chassis unit 5, where FIG. 11A is a plan view thereof, FIG. 11B is a front view, and FIG. 11C is a left side view. The chassis unit 5 has a base made of resin, and has a drive gear, a guide unit drive mechanism including a drive motor, an optical pickup for reproducing or recording the optical disk 1a, a spindle motor, and the like mounted thereon. As shown in FIGS. 11A and 11B, mounting plates 5a having a thin plate thickness are formed at four corners of the chassis unit 5, and mounting holes 5b for fixing the dampers are formed therein.

FIG. 12 is a sectional view showing the structure of the damper 7 and its mounting state. The damper 7 is an elastic member such as rubber, and is formed in a gourd shape with its central portion opened. As shown in FIG. 12, the outer peripheral grooves 7a of the damper 7 are inserted into the mounting plates 5a at the four corners of the chassis unit 5, and the fixed shaft 8 is passed through the damper 7 and the bottom plate of the frame unit 6 to finely move the chassis unit 5. Holds freely.

Next, regarding the frame unit 6, FIG.
This will be described with reference to FIG. 13A is a plan view showing the structure of the frame unit 6, FIG. 13B is a front view,
(C) is a rear view. 14A is a left side view of the frame unit 6, and FIG. 14B is a right side view. The frame unit 6 is a box-shaped member made of a metal plate having a plate thickness of 0.8 mm and having a substantially rectangular bottom plate. Frame unit 6
Respectively support the chassis outer peripheral unit 2, the guide unit 3, the loading mechanism including the internal tray unit 4, and the chassis unit 5.

As shown in FIG. 13, the frame unit 6 is composed of a bottom plate 6a, a left side plate 6b, a right side plate 6c and a rear side plate 6d. As shown in FIGS. 14A and 14B, the left side plate 6b and the right side plate 6c are formed with guide rails 6e along their end faces. The guide rail 6e is the bottom plate 6a.
It is a rail formed by connecting an edge parallel to and an edge descending in an arc toward the bottom plate 6a.
The guide rail 6e contacts the pin 2i of the tray outer peripheral unit 2 to keep the posture of the rear side engagement receiver 2c constant, and rotates the rear side engagement receiver 2c at a predetermined position. Further, guide rollers 6f and 6g are rotatably attached to the center inner surface and the front inner surface of the left side plate 6b and the right side plate 6c, respectively. The guide rollers 6f and 6g are respectively inserted into the guide grooves 2f of the tray outer peripheral unit 2 to prevent the tray outer peripheral unit 2 from vertically swinging at the time of loading, and serve as guide rollers for slidably holding the tray outer peripheral unit 2.

In the bottom plate 6a of the frame unit 6,
Guide pins 6h and 6i are vertically provided at positions close to the guide rollers 6f and 6g of the left side plate 6b. The guide pins 6h and 6i are fitted into the guide grooves 2e of the tray outer peripheral unit 2 and have a function of preventing the tray outer peripheral unit 2 from moving in the left-right direction. A lock engaging portion 6j is formed on the rear side plate 6d of the frame unit 6. As shown in FIG. 13 (c), the lock engaging portion 6j has a long groove 6l cut out at a lower position when viewed from the bottom plate 6a.
And a long groove 6m cut out at a high position, and a central window 6n connecting these long grooves 6l and 6m, respectively, are holes integrally formed. The lock engagement portion 6j engages with first and second lock levers described later to lock the guide unit 3 and the internal tray unit 4.

FIG. 15 is a side view showing a state in which the optical disk cartridge 1b is pressed and fixed to the chassis unit 5 in the loading device. As shown in the figure, the pressing frame 9 and the slider 1 are placed on the chassis unit 5.
0, the pressing plate 11 is attached. FIG. 16 is an exploded perspective view showing the pressing frame 9, slider 10, and pressing plate 11.

First, the pressing frame 9 is shown in FIGS.
This will be described with reference to 7. 17A and 17B are views showing the structure of the pressing frame 9. FIG. 17A is a plan view, FIG. 17B is a rear side view, FIG. 17C is a left side view, and FIG. The pressing frame 9 presses and fixes the optical disk cartridge 1b loaded in the chassis unit 5, and is composed of a sheet metal member having a thickness of 0.8 mm. FIG. 17 (a)
As shown in, a rectangular opening 9a is provided in the moving range of the magnetic head of the pressing frame 9. Further, a left cut-and-raised portion 9b and a right cut-and-raised portion 9c are provided on the left side of the center line connecting the front and rear of the pressing frame 9, respectively. As shown in FIG. 17 (c), the left cut-and-raised portion 9b has the same guide slit 9
d and 9e are cut out, and as shown in FIG. 17 (d), right cut and raised portion 9c is also cut out with guide slits 9f and 9g of the same shape. The guide slits 9d to 9g have a slope shape in the loading direction and are first guide slits that engage with pins of the slider 10 described later.

Next, the slider 10 will be described with reference to FIG. 18A is a plan view showing the structure of the slider 10, and FIG. 18B is a side view. The slider 10 is connected to the pressing frame 9 and the pressing plate 11 when fixing the optical disk cartridge 1b to the chassis unit 5, and
It is a member that moves in the X direction, and the main body is made of resin. As shown in FIG. 18A, the slider 10 is formed by integrally forming an L-shaped hook 10a located at the tip and a vertically long flat plate, and has a plate thickness of 5 mm. The second pins 10b and 10c are press-fitted on the left side surface, and the second pin 10 is also pressed on the right side surface.
d and 10e are press-fitted. In addition, the third pins 10f and 10g are on the upper surface of the pressing frame 9 on the left side, and the third pins 10f and 10g are on the left side.
h and 10i are attached to the right side via E-rings, respectively. The pins 10f, 10g, 10h and 10i are fitted into the guide slits 9e, 9d, 9f and 9g of the pressing frame 9, respectively. The pins 10b to 10e are fitted into guide slits of the pressing plate 11 described later.

As shown in FIG. 18 (a), a pin 10j is vertically provided at the base of the hook 10a. Hook 1
0a is the first lock lever 1 as shown in the plan view of FIG.
The tension spring 12 is stretched between the pin 3f and the pin 13f. In addition, the tip of the hook 10a is the lock lever 1
The pin 13f contacts or separates from the third pin 13f, and receives a pressing force in the −X direction at the time of contact, and receives an attractive force in the + X direction by the tension of the spring 12 suspended on the pin 10j when separating.

Next, the pressing plate 11 will be described with reference to FIG. 19A and 19B are views showing the structure of the pressing plate 11, where FIG. 19A is a plan view, FIG. 19B is a rear side view, and FIG.
[Fig. 4] is a right side view taken along the line A-A in (a). The pressing plate 11 is a member for directly pressing and fixing the optical disk cartridge 1b loaded in the chassis unit 5, and is made of a metal plate having a plate thickness of 0.5 mm. FIG. 19 (a)
As shown in, the pressing plate 11 is a substantially rectangular plate-shaped member,
Left cut-and-raised parts 11a on the left side of the center line connecting the front and back, respectively.
A right cut and raised portion 11b is provided. Further, on the right side of the center line, an opening 11c serving as a scanning space of the recording magnetic head
Is cut out. As shown in FIG. 19C, the right cut-and-raised portion 11b is provided with second guide slits 11g and 11h, and the left cut-and-raised portion 11a is also provided with the second guide slit 1.
1e and 11f are provided, respectively. Guide slit 1
1e to 11h are slits having the same shape and cut out in a slope shape in the loading direction of the optical disc cartridge 1b. Guide slits 11e, 11f, 1
1g and 11h are the pins 10c and 10 of the slider 10, respectively.
It is fitted with b, 10e and 10d.

Next, as shown in FIGS. 1 and 3A, the first lock lever 13 and the second lock lever 14 are rotatably attached to the chassis unit 5. Figure 2
0 is a view showing the structure of the lock lever 13, (a) is a plan view, (b) is a front side view, and (c) is a right side view. As shown in FIG. 20A, the lock lever 13 includes a first rotating shaft 13a pivotally supported by the chassis unit 5, a V-shaped first engaging portion 13b, and an arc-shaped first gear portion 13c. , An arm portion 13e formed in a branch shape from the rotary shaft 13a, a pin 13f erected at the tip of the arm portion 13e, a rotary shaft 13a
It is a member integrally formed with a guide pin 13g and the like, which are provided in a direction substantially perpendicular to the pin 13f with the center as the center. The engaging portion 13b is fitted with the long groove 6l of the lock engaging portion 6j when rotated in the CCW direction in FIG. The gear portion 13c meshes with the gear portion of the lock lever 14 and transmits the turning force of the lock lever 13 to the lock lever 14. The tip of the arm portion 13e contacts the hook 10a of the slider 10 and presses the slider 10 in the -X direction. The pin 13f is engaged with one end of the spring 12, and the guide pin 13g is the cam groove 3j of the guide unit 3.
Is a pin that engages with. The lock lever 13 engages with the lock engaging portion 6j of the frame unit 6 in conjunction with the lock lever 14, and particularly the long groove 6l and the central window 6n.
A part of which is inserted into the frame unit 6 to lock the chassis unit 5 to the frame unit 6.

Next, the lock lever 14 will be described with reference to FIG. 21A and 21B are views showing the structure of the lock lever 14, where FIG. 21A is a plan view and FIG. 21B is a rear side view.
As shown in FIG. 21A, the lock lever 14 includes a second rotary shaft 14a pivotally supported by the chassis unit 5, a V-shaped second engaging portion 14b, and an arc-shaped second gear portion 14c. It is an integrally formed member that rotates in conjunction with the lock lever 13. The engaging portion 14b is provided with a long groove 6m of the lock engaging portion 6j when the lock lever 14 is rotated in the CW direction.
Chassis unit 5 during loading
Is to lock.

Next, other mechanical parts attached to the chassis unit 5 will be described. 1, FIG. 3 (a), FIG.
As shown in FIG. 1, an L slider 15 and an R slider 16 are attached to the left and right sides of the chassis unit 5, respectively. As shown in the perspective view of FIG. 3A, the L slider 15 is a pair of bearings formed in the front-rear direction and slidably holds the guide shaft 3f of the guide unit 3. As shown in the perspective view of FIG. 3A, the R slider 16 is a rail having a constant thickness provided in the front-rear direction and engages with the guide groove 3i of the guide unit 3 to slide the guide unit 3 in the front-rear direction. It can be held freely. As shown in FIG. 3A, the drive gear 17 is interposed between the two bearings of the L slider 15.
Is rotatably attached. Drive gear (pinion)
Reference numeral 17 rotates by receiving a rotational force from a drive motor 18 shown in FIG. 11 via a belt, meshes with a rack 3e of the guide unit 3, and drives the guide unit 3 in the front-rear direction.

In addition to the above-mentioned mechanical parts, the chassis unit 5 slides on a turntable 19 driven by a spindle motor (not shown), a recording magnetic head 20, a recording or reproducing optical pickup 21, and a tray outer peripheral unit 2. A stopper 22 for regulating the direction is attached.

Next, an assembling method of a part of mechanical units of the loading apparatus for the optical disk cartridge according to the present embodiment will be described. First, the pressing frame 9 and the slider 1
0, the assembling method of the pressing plate 11 will be described. As shown in FIG. 18, the pins 10b to 10e are pressed into the slicer 10. Next, the pins 10f to 10i are attached to the slider 10. Then, the pins 10b to 10e (in no particular order) are inserted into the guide slits 11e to 11h of the pressing plate 11 shown in FIG. As shown in FIG. 19B, the rear portion of each of the guide slits 11e to 11h is bent at a right angle, and the pin can be easily inserted from this portion.

Thus, the slider 10 and the pressing plate 1 are
The assembly assembled with 1 is attached to the pressing frame 9. That is, in the guide slits 9d to 9g of the pressing frame 9, as shown in FIG.
The pins 10f to 10i shown in (a) are inserted and fixed with an E ring. Next, the pressing frame 9 in which the slider 10 and the pressing plate 11 are connected is attached to the chassis unit 5. As shown in FIGS. 3A and 11A and 11B, two sets of mounting bosses are provided on the left and right of the drive motor 18,
A screw hole is formed in the rotary base of the lock lever 14. The pressing frame 9 can be fixed to the chassis unit 5 by screwing the three points P1, P2 and P3 as shown in FIGS. 17 (a) and 17 (b).

In the above state, when the slider 10 is pressed in the direction of arrow A in FIG. 16, the slider 10 itself lowers and the pressing plate 11 also largely lowers, so that the upper surface of the optical disk cartridge 1b can be pressed. Further, in FIG. 1, when the lock lever 13 is rotated in the CCW direction,
The arm portion 13e presses the hook 10a of the slider 10. Therefore, as shown in FIG.
Move in the direction. Then, the slider 10 itself rises, and with this, the pressing plate 11 further rises. In this case, the pressing plate 11 is separated from the upper surface of the optical disc cartridge 1b.

Next, a method of assembling the guide unit 3 and the internal tray unit 4 will be described. The pins 4f and 4g of the internal tray unit 4 shown in FIG. 9 are fitted into the four cam grooves 3d of the guide unit 3 shown in FIG. 10, respectively. Then, the connecting plate 3c is fixed to the left guide 3a and the right guide 3b by screwing. Then, the resin plate 3k having the guide groove 3j formed therein is fixed to the lower surface of the connecting plate 3c. In this way, the inner tray unit 4 and the guide unit 3 are slidable in the loading directions having different heights.

Next, a method of assembling the chassis unit 5 will be described. As shown in FIGS. 11 and 3A, the drive motor 18 and the lock levers 13 and 14 are attached to the bottom plate of the chassis unit 5. At this time, the gear portion 13c of the lock lever 13 shown in FIG. 20 and the lock lever 1 shown in FIG.
The gear part 14c of No. 4 meshes. Rotating shaft 13a
The lock lever 13 is directly attached to the bottom plate of the chassis unit 5 via the, and the lock lever 14 is attached via the rotary shaft 14a and the rotary base of the chassis unit 5. Next, the drive gear 17 and the L slider 1 are provided on the left side of the chassis unit 5.
Install 5. The R slider 16 is attached to the right side of the bottom plate. Next, the spring 12 is attached to the pin 10j of the slider 10 and the pin 13f of the lock lever 13 as shown in FIG.

Next, a method of assembling the frame unit 6 will be described. As shown in FIG. 14, the left side plate 6b and the right side plate 6c of the frame unit respectively have a pair of guide rollers 6f,
Install 6g. Further, the guide pins 6h and 6i are attached to the bottom plate 6a. Next, the guide unit 3 and the internal tray unit 4
In order to attach the assembly to the chassis unit 5, the guide shaft 3f of the guide unit 3 is passed through the L slider 15 and fixed by the E ring. While inserting the R slider 16 into the guide groove 3i of the guide unit 3, the R slider 16 is fixed to the bottom plate of the chassis unit 5 by screwing. By doing so, the guide unit 3 and the internal tray unit 4 are slidable in the ± X directions with respect to the chassis unit 5.

In order to mount the chassis unit 5 on which each unit is mounted as described above to the frame unit 6, the dampers 7 are mounted on the mounting plates 5a provided at the four corners of the chassis unit 5, respectively, as shown in FIG. Further, it is fixed to the frame unit 6 by using the fixed shaft 8. In this state, if the lock levers 13 and 14 are not engaged with the roller engaging portions 6j of the frame unit 6, respectively, the chassis unit 5 has X, X of the frame unit 6 shown in FIG. 3B.
It can be displaced ± 2 mm in the Y and Z directions.

Next, the tray outer peripheral unit 2 is inserted from the front of the frame unit 6 without the reinforcing plate 2b attached. At this time, the guide groove 2f shown in FIGS. 6 and 7 is inserted so as to be guided by the guide rollers 6f and 6g of the frame unit 6, and the guide groove 2e shown in FIG.
It may be inserted so as to be guided by the guide pins 6h and 6i shown in (a) and (b). In this state, the tray outer peripheral unit 4 becomes slidable in the loading direction with respect to the frame unit 6.

Next, the rear side engagement receiver 2c is attached to the rear portion of the tray outer peripheral unit 2. In this case, as shown in FIG. 6A, the torsion coil spring 2h may be attached first, and both ends thereof may be hooked to insert the rear side engagement receiver 2c. Next, after attaching the reinforcing plate 2b, the rear side engagement receiver 2c
Is fitted to the rear side engagement pin 3g of the guide unit 3, and the reinforcing plate 2b is fixed by screwing from the side of the tray outer peripheral unit 2. The loading device is completed by assembling the mechanical units shown in FIGS. 2, 3 and 16 as described above.

Next, the operation of each unit when the optical disk cartridge 1b is placed on the tray and moved to the playing position will be described. FIG. 22 is an explanatory diagram showing a state in which the tray of the loading device is at the attachment / detachment position. In FIG. 11, when the drive motor 18 rotates, the rotation torque is transmitted to the drive gear 17 via the pulley and the belt. Therefore, the guide unit 3 receives a pressing force in the loading direction via the rack 3e. FIG. 23 is an explanatory diagram showing the positional relationship between the rear side engagement receiver 2c and the rear side engagement pin 3g when the guide unit 3 moves from the detachable position to the playing position. As shown on the left side of the figure, the rear side engagement receiver 2c
Faces upward while being engaged with the rear side engagement pin 3g. In this state, the rear side engagement receiver 2c moves rightward together with the guide unit 3. Therefore, the tray outer peripheral unit 2 is pulled in the same direction via the rear side engagement pin 3g. If the pins 4f and 4g of the internal tray unit 4 are also fitted above the cam groove 3d, the internal tray unit 4 moves rearward while holding the optical disk cartridge 1b at the first height. When the rear end of the tray outer peripheral unit 2 eventually collides with the stopper 6p of the frame unit 6, the tray outer peripheral unit 2 stops at this position.

Subsequently, the drive motor 18 rotates in the same direction,
When the guide unit 3 is pulled rearward, the pin 2i of the rear side engagement receiver 2c descends along the guide rail 6e of the frame unit 6 as shown in FIG. When the rear side engagement receiver 2c comes to the right side in FIG. 23, it rotates in the CW direction and becomes horizontal. Therefore, the rear side engagement pin 3g of the guide unit 3 is in a state where it can be opened rearward as shown by an arrow E.

When the guide unit 3 further moves rearward in this state, the pins 4f and 4g of the internal tray unit 4 move below the cam groove 3d of the guide unit 3. Therefore, the inner tray unit 4 descends with respect to the guide unit 3,
The optical disc cartridge 1b is held at the second height which is the performance position. In this way, the optical disc 1a is set on the turntable 19.

The guide unit 3 continues to move even after the tray outer peripheral unit 2 is stopped, and the front coupling projection 3h of the guide unit 3 is disengaged from the front engagement receiver 2g. The rear side engagement pin 3g is also disengaged from the rear side engagement receiver 2c as shown on the right end side in FIG. In this state, the rear side engagement receiver 2c is rotatable with respect to the tray outer peripheral unit 2.

In FIG. 1, when the connecting plate 3c reaches the position of the lock levers 13 and 14 in due course, the lock lever 1
The pin 13g of No. 3 fits into the cam groove 3j. Figure 10 (a)
Since the inside of the cam groove 3j meanders to the right as shown in FIG. 5, when the guide unit 3 further moves rearward, the lock lever 13 rotates in the CW direction. At this time, the gear portion 14 c of the lock lever 14 is connected to the gear portion 1 of the lock lever 13.
Since it is meshed with 3c, the lock lever 14 rotates in the CCW direction.

The engaging portion 13b of the lock lever 13 moves from the long groove 6l of the lock engaging portion 6j to the central window 6n side, and the engaging portion 14b of the lock lever 14 also moves from the long groove 6m to the central window 6n.
Move to the side. In such a state, the lock of the guide unit 3, the internal tray unit 4, and the frame unit 6 is released. The chassis unit 5 is held by the frame unit 6 via the damper 7 so as to be finely movable in the three axial directions. In this state, even if a human hand touches the front surface of the tray outer peripheral unit 2 or a vibration shock is applied to the frame unit 6, the vibration is not transmitted to the chassis unit 5 on which the optical disk 1a is mounted. On the other hand, while the tray outer peripheral unit 2 and the inner tray unit 4 are moving, the lock levers 13 and 14 are fitted into the lock engaging portions 6j, respectively, so that the chassis unit 5 cannot move slightly with respect to the frame unit 6. The tray outer peripheral unit 2, the guide unit 3, and the internal tray unit 4 are set so as not to be able to finely move in the YZ directions with respect to the chassis unit 5, and the tray is held with high positioning accuracy. As a result, the optical disk cartridge 1b at the attach / detach position can be accurately guided to the playing position.

The locking mechanism as described above does not restrict all six degrees of freedom (± X, ± Y, ± Z) of the chassis unit 5, but restricts two degrees of freedom in the ± X directions while the tray is moving. is doing. By thus restricting only the tray movement direction, the driving force can be reliably transmitted from the chassis unit 5 to the tray.

Next, the operation of the pressing frame 9, slider 10, and pressing plate 11 at the playing position will be described. As shown in FIG. 1, when the lock lever 13 rotates in the CW direction, the arm portion 13e and the pin 13f rotate in the same direction. Therefore, the pin 13f is attached to the hook 10 of the slider 10.
The pressing force on a is released, and the slider 10 is pulled in the + X direction via the spring 12. Therefore, the slider 10
The device itself is lowered, and the pressing plate 11 is also lowered. Then, as shown in FIG. 15, the lower surface of the pressing plate 11 presses the upper surface of the optical disk cartridge 1b. This pressing force is due to the elasticity of the spring 12 and the pins 10b to 1 of the slider 10.
0i and the friction coefficient between each of the guide slits of the pressing frame 9 and the pressing plate 11, and if these are adjusted optimally, the pressing force of the optical disk cartridge 1p at the playing position can be well maintained.

The optical disk 1a loaded in the playing position is recorded by the magnetic head 20 and the optical pickup 21.
And the information is recorded. In this case, since the magnetic head 20 is located in the opening 9a of the pressing frame 9 and the opening 11c of the pressing plate 11 as shown in FIGS. 17 and 19, the magnetic head 20 is shown together with the optical pickup 21 in FIG. It can move in the direction of the arrow CD.

The operation of moving the optical disk cartridge 1b from the playing position to the mounting / removing position is the same as the operation of each mechanical unit except that the reverse procedure of the loading operation described above is performed, and the description thereof is omitted.

As described above, according to the loading device of this embodiment, the tray outer peripheral unit 2 is used when playing an optical disk.
And the guide unit 3 are separated from the frame unit 6, and the chassis unit 5 is attached to the frame unit 6 with the damper 7
It can be held in a vibration-proof state via. In this way, even if a person touches the front surface of the tray outer peripheral unit 2, the impact is not transmitted to the chassis unit 5, and good followability of the magnetic head 20 and the optical pickup 21 with respect to the optical disk 1a can be obtained. Further, it is not necessary to expose the performance mechanism section to the outside of the loading device, and it is not necessary to provide the loading device with an opening cover.

On the other hand, the tray outer peripheral unit 2, the guide unit 3, and the internal tray unit 4 which move during loading.
Has a structure in which it is directly held and guided by the frame unit 6 via the lock levers 13 and 14. Therefore, sufficient rigidity can be obtained even for the moving tray.
That is, even if a person touches the tray during loading, it does not give a soft and unstable feeling.

The movement of the tray outer peripheral unit 2, the guide unit 3, and the internal tray unit 4 to the attachment / detachment position and to the performance position can also be realized by reversibly rotating the drive motor 18, and the power source thereof is also one motor. Can be done in In addition, tray outer peripheral unit 2, guide unit 3,
Since the internal tray units 4 are coupled to each other, the locking between the chassis unit 5 and the frame unit 6 is required to restrict only the moving direction of the tray at least, and thus stable loading operation can be performed. That is, the damper 7 does not need to restrict all the six degrees of freedom of the chassis unit 5.

Since the slope-shaped guide slits are provided on both the pressing frame 9 and the pressing plate 11, the pressing plate 11 can be largely lowered only by pressing the slider 10 in the loading direction. Therefore, the volume occupied by the pressing frame 9, slider 10, and pressing plate 11 is small, and the thickness during assembly can be made extremely small. Further, since the cartridge pressing means is provided apart from the scanning areas of the magnetic head 20 and the optical pickup 21, the thickness of the loading device can be made extremely small.

[0064]

As described in detail above, according to the present invention, the first and second lock levers engage with the frame unit when the optical disk cartridge is placed on the internal tray unit and loaded. Therefore, the inner tray unit and the guide unit do not slightly move in directions other than the loading direction, and the optical disc is accurately positioned and placed on the turntable of the chassis unit. At the playing position of the optical disk, the first and second lock levers are released, and the chassis unit on which the optical disk is mounted is held in a vibration-proof state by the frame unit via the damper. Therefore, even if external vibration is applied in the recording or reproducing state of the optical disc, the vibration is not transmitted to the chassis unit.

When the optical disk cartridge is placed on the tray outer peripheral unit and the internal tray unit,
The optical disc can be automatically transferred to the playing position via the guide unit. Even if the gap between the optical disk and the optical disk cartridge is small, the information recording surface of the optical disk is lowered to a fixed position by the operation of the cartridge pressing means.
Recording signals can be given from both sides of the disc. Therefore, it is possible to realize an information recording / reproducing apparatus which is excellent in vibration proofing property and operability and in which the axial thickness of the optical disc is reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing the overall configuration of an optical disk cartridge loading device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view (No. 1) showing an arrangement of constituent units of a main part of the optical disk cartridge loading device of the present embodiment.

FIG. 3 is an exploded perspective view (No. 2) showing the arrangement of the constituent units of the main part of the optical disk cartridge loading device of this embodiment.

FIG. 4 is a perspective view showing the structure of an optical disk cartridge for reproduction.

FIG. 5 is a perspective view showing the structure of an optical disc cartridge for recording.

6A and 6B are a plan view and a front view showing the configuration of the tray outer peripheral unit of the present embodiment.

FIG. 7 is a side view showing the structure of the left side portion of the tray outer peripheral unit of the present embodiment.

FIG. 8 is a side view showing the configuration of the right side portion of the tray outer peripheral unit of the present embodiment.

9A and 9B are a plan view and a side view showing the configuration of the internal tray unit of this embodiment.

10A and 10B are a plan view and a side view showing the configuration of the guide unit of the present embodiment.

11A and 11B are a plan view and a side view showing the configuration of the chassis unit of the present embodiment.

FIG. 12 is a side view showing a mounting state of the chassis unit and the frame unit of the present embodiment.

13A and 13B are a plan view and a front view showing the structure of the frame unit of the present embodiment.

FIG. 14 is a side view showing the structure of the frame unit of this embodiment.

FIG. 15 is a side view showing a mounting state of a pressing frame, a slider, and a pressing plate of this embodiment.

FIG. 16 is an exploded perspective view showing the pressing frame, slider, and pressing plate of this embodiment.

FIG. 17 is a plan view and a side view showing the structure of the pressing frame of the present embodiment.

FIG. 18 is a plan view and a side view showing the structure of the slider according to the present embodiment.

19A and 19B are a plan view and a side view showing the structure of the pressing plate of the present embodiment.

20A and 20B are a plan view and a side view showing the structure of the first lock lever of the present embodiment.

21A and 21B are a plan view and a side view showing a structure of a second lock lever of the present embodiment.

FIG. 22 is an explanatory view (No. 1) showing the operation of the rear side engagement receiver in the tray outer peripheral unit of the present embodiment.

FIG. 23 is an explanatory view (No. 2) showing the operation of the rear side engagement receiver in the tray outer peripheral unit of the present embodiment.

[Explanation of symbols]

 1 Optical Disc Unit 1a Optical Disc 1b Optical Disc Cartridge 1c Opening 1d Window 1e, 1f Shutter 2 Tray Peripheral Unit 2a Outer Perimeter Frame 2b Reinforcing Plate 2c Rear Side Engagement Receptor 2d Recess 2e, 2f, 3i Guide Groove 2g Front Engagement Receptor 2h Spring 2i , 4f, 4g, 10b to 10j, 13f pin 3 guide unit 3a left guide 3b right guide 3c connecting plate 3d, 3j cam groove 3e rack 3f guide shaft 3g rear side engaging pin 3h front side connecting protrusion 3k resin plate 4 internal Tray unit 4a, 9a, 11c Opening 4a-4e Rising part 5 Chassis unit 5a Mounting plate 5b Mounting hole 6 Frame unit 6a Bottom plate 6b Left side plate 6c Right side plate 6d Rear side plate 6e Guide rail 6f, 6g Guide roller 6h, 6i, 13g Guide 6j Lock engaging part 6l, 6m Long groove 6n Central groove 6p, 22 Stopper 7 Damper 7a Outer peripheral groove 8 Fixed shaft 9 Pressing frame 9a, 11a Left cut-raised part 9c, 11b Right cut-raised part 9d-9g, 11e-11h Guide Slit 10 Slider 10a Hook 11 Pressing plate 13 First lock lever 13a, 14a Rotating shaft 13b, 14b Engaging part 13c, 14c Gear part 13e Arm part 15 L slider 16 R slider 17 Drive gear 18 Drive motor 19 Turntable 20 Magnetic Head 21 optical pickup

Claims (9)

[Claims] 1. An optical disk cartridge loading device for moving an optical disk cartridge between a loading / unloading position and a playing position, the internal tray unit holding the optical disk cartridge, and the internal tray unit movably held in the loading direction for loading / unloading. A guide unit that holds the internal tray unit at a first height at a position and holds the internal tray unit at a second height at which the optical disk cartridge is at a recording / reproducing position at a playing position; A drawer-shaped tray outer peripheral unit that is coupled or disengaged and moves between the attaching / detaching position and the playing position together with the guide unit, and a frame unit slidably guiding the tray outer peripheral unit and attached to the base of the optical disk cartridge loading device. And an optical disc A chassis unit that includes a turntable to be mounted, is attached to the frame unit via a damper, slidably holds the guide unit, and drives in the loading direction; and is rotatably attached to the chassis unit. An optical disc comprising: first and second lock levers for locking the chassis unit to the frame unit; and a cartridge pressing unit that is attached to the chassis unit and presses the optical disc cartridge during performance. Cartridge loading device. 2. An optical disk cartridge loading device for moving an optical disk cartridge between a mounting / removing position and a playing position, wherein an opening is formed at the center of a substantially rectangular flat plate and a rising part is formed around the flat plate to hold the optical disk cartridge. Is a U-shaped member formed of an inner tray unit for connecting the left and right sides and a connecting plate for connecting the left and right sides, and holds the inner tray unit so that it can be finely moved in the loading direction to load the optical disk cartridge. Guide for holding the internal tray unit at a first height which is a mounting / demounting position of the optical disk cartridge and holding the internal tray unit at a second height where the optical disk cartridge is a recording / reproducing position at a playing position. The unit and the outer peripheral frame are formed in a substantially rectangular shape, A drawer-shaped tray outer peripheral unit that is slidably held by a unit and moves between a mounting / removing position of the optical disk cartridge and a playing position, and a member formed by a left side plate, a right side plate, and a bottom plate, the left side plate and the right side plate. A frame unit that slidably guides the tray outer peripheral unit using the edge of the plate as a guide rail, and is attached to the base of the optical disk cartridge loading device; and a plurality of frame units that are attached to the frame unit and absorb vibration impact in three axial directions. And a turntable for mounting an optical disc, the chassis unit being attached to the frame unit via the damper and holding the guide unit slidably for driving in the rotating direction; It has an engaging part and a gear part, and can rotate to the chassis unit via the rotating shaft. First and second lock levers that are movably attached and that mechanically fix the chassis unit to the frame unit by engaging the engaging portion with the frame unit; An optical disk cartridge loading device, comprising: a cartridge pressing unit which is attached to a chassis unit and presses the optical disk cartridge when playing and releases the pressing when loading. 3. An optical disk cartridge loading device for moving an optical disk cartridge between a removable position and a playing position, the internal tray unit holding the optical disk cartridge, and the internal tray unit movably held in the loading direction for attachment / detachment. A guide unit that holds the internal tray unit at a first height at a position and holds the internal tray unit at a second height at which the optical disk cartridge is at a recording / reproducing position at a playing position; A drawer-shaped tray outer peripheral unit that is coupled or disengaged and moves between the attaching / detaching position and the playing position together with the guide unit, and a frame unit slidably guiding the tray outer peripheral unit and attached to the base of the optical disk cartridge loading device. And the flavor A plurality of dampers mounted on the unit to absorb vibration and shock in three axial directions, and a turntable on which an optical disk is mounted, mounted on the frame unit via the dampers, and slidably holding the guide unit. A chassis unit that is driven in the loading direction and is rotatably attached to the chassis unit; and first and second lock levers that lock the chassis unit to the frame unit; A cartridge pressing unit that presses the optical disk cartridge at the time of playing, the inner tray unit is formed in a flat plate shape and holds the optical disk cartridge, and the guide unit has a left side portion and a right side portion. U-shaped member formed with a connecting plate that connects these There, slide the inner tray unit in the loading direction,
Formed on the left side portion and the right side portion so as to hold the internal tray unit at the first height at the mounting / removing position of the optical disk cartridge and hold the internal tray unit at the second height at the playing position. A slope-shaped first cam groove, a second cam groove provided in the connecting plate and oblique to the loading direction of the optical disk cartridge, a rack to which a sliding driving force is transmitted by the chassis unit, a loading by the rack The guide shaft and the guide groove, which serve as a sliding shaft and a sliding groove when driven in the respective directions, a right guide and a left guide that slidably hold the tray outer peripheral unit, and a loading direction that engages with the tray outer peripheral unit. And a rear side engaging pin for applying a driving force to the tray outer peripheral unit. A rear engagement receiver that is rotatably attached to the left and right side portions of the outer peripheral frame and that is coupled to or disengaged from the rear side engagement pin of the guide unit, the left and right side portions of the outer peripheral frame. A guide groove formed in a concave shape along the outer surface of the outer peripheral frame, a front side engagement receiver formed in a concave shape along the inner surface of the left and right side portions of the outer peripheral frame, and the frame unit includes a left side plate and a left side plate. A member formed by a right side plate and a bottom plate, which is attached to the left side plate and the right side plate, and which engages with the guide groove of the tray outer peripheral unit and slidably holds the guide roller and the guide pin, the left side plate and the right side plate. A guide rail that is formed at the edge of the plate and guides the rear side engagement receiver in a slidable manner and controls the posture thereof. The guide rail is provided upright at the rear end of the bottom plate, and a gavel-shaped engagement hole is cut out. Lock engagement part, The chassis unit is attached to the frame unit via the damper, holds the guide shaft of the guide unit slidably, and has an L slider formed in a rod shape. A plate-shaped R slider that engages with a guide groove of a guide of the unit, a turntable on which the optical disc is mounted, a drive that meshes with a rack of the guide unit, and transmits a driving force in the loading direction to the guide unit The first and second lock levers are rotatably connected to the chassis unit and are attached to the chassis unit when engaging with the lock engaging portion of the frame unit. Fixed to the frame unit,
Elastically supporting the chassis unit with respect to the frame unit when not engaged with the lock engaging portion, the cartridge pressing means is a plate-like pressing frame fixed to the frame unit, the pressing frame A slider that is slidably held in the loading direction and the up-down direction, and a pressing plate that is engaged with the slider and is movably held in the loading direction and the up-down direction and presses the optical disk cartridge during performance. An optical disk cartridge loading device characterized in that 4. The inner tray unit is a member formed in a flat plate shape and holds the lower surface of the optical disc cartridge, and
An opening provided on the flat plate so as to open the information recording surface of the optical disc to the optical pickup, and a plurality of rising portions provided on four sides of the flat plate for regulating the front and rear and left and right positions of the optical disc cartridge, the flat plate 4. The optical disk cartridge loading device according to claim 3, further comprising a plurality of first pins that are provided upright on the left and right side surfaces of the first pin and that engage with the guide unit. 5. The guide unit according to claim 1, wherein the first cam groove is formed at each of two positions along the loading direction of the left side portion and the right side portion, and the second cam groove is The connecting plate is formed in an S shape so as to be oblique to the rotating direction, the rack is a gear linearly formed along the left side portion, and the right guide and the left guide are It is characterized in that it is formed in a plate shape on the left side portion and the right side portion, and the rear side engagement pin is a pin formed outward at a rear end portion of the left side portion and the right side portion. The optical disk cartridge loading device according to claim 3. 6. The tray outer peripheral unit according to claim 1, wherein the rear side engagement receiver is formed by integrally forming a U-shaped coupling member with a coupling groove cut out and an egg-shaped rotary arm. The optical disk cartridge loading device according to claim 3. 7. The frame unit according to claim 7, wherein the guide rail is formed of a parallel portion parallel to the bottom plate and an arcuate portion of the rear portion on upper surfaces of the left side plate and the right side plate, and the lock engaging portion is The two long grooves cut out to the left and right of the bottom plate and the central window connecting these long grooves are integrally formed, respectively, and the damper has a gourd-like elastic member having a central opening. 4. The optical disk cartridge loading device according to claim 3, wherein 8. In the cartridge pressing means, the pressing frame has slope-shaped first guide slits provided at a plurality of positions along a sliding direction of the guide unit, and the slider is A second pin that engages with the first guide slit, a third pin that is mounted in parallel with the second pin, and an L-shaped hook that biases the first lock lever in the loading direction. The pressing plate has a slope-shaped second guide slit that engages with the third pin of the slider, an opening that opens the information recording surface of the optical disk, and a plate shape that presses the upper surface of the optical disk cartridge. The optical disk cartridge loading device according to claim 3, wherein the optical disk cartridge loading device is a member of 9. The first lock lever includes a first rotation shaft that is rotatably held vertically by the chassis unit, and a radial protrusion from the first rotation shaft that locks the frame unit. A V-shaped first engaging portion that engages with or avoids the joining portion, and a gear that is formed in an arcuate range and protrudes from the first rotation shaft in a different radial direction from the first engaging portion. A first gear portion, and an arm on which a pressing pin that abuts a tip portion of the slider of the cartridge pressing means and presses an end portion of the slider is provided upright, and the second lock lever is A second rotation shaft vertically rotatably held by the chassis unit; and a V-shape that projects radially from the second rotation shaft and engages or avoids a lock engagement portion of the frame unit. A second engaging portion and the second rotation From the second engaging portion in a radial direction different from that of the second engaging portion, and a second gear portion in which a gear is formed in an arcuate range so as to mesh with the first gear portion. The optical disk cartridge loading device according to claim 3.