JPS63177350A - Loader - Google Patents

Abstract

PURPOSE:To simplify the mechanism of a shutter part by providing two levers freely turnably and passable each other at the crossing parts of themselves as an opening/closing means for a shutter provided to a cartridge in different positions of a holder to hold the cartridge. CONSTITUTION:On the cartridge holder main body 3, the two shutter levers 31 are provided turnably around respective fulcrums at the lower part of the main body 3, and these two levers 31 are so formed that they can pass by each other at the crossing parts of themselves. If a cartridge 8 is pushed in, the right-hand side lever 31 rotates clockwise and the left-hand side lever 31 counterclockwise. A shutter lever 32 provided at the fulcrum of the right-hand side lever 31 turnably, drives a shutter 82 to move to the left.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a parallel loading device loaded with a cartridge that houses an information recording medium such as an optical disk or a magneto-optical disk.

Note that the present invention is applicable not only to disk-shaped recording media but also to other shapes of recording media (for example, card-shaped).

[Conventional technology]

A conventional disk cartridge is shown in FIGS. 7(,) and (b).
) and (C).

In addition, FIG. 7 (凰) is an external perspective view showing the state in which the shutter is closed when the conventional disc cartridge is not in use, and FIG. 7 (b) is the state in which the shutter is open when the A side of the cartridge is in use. External perspective view shown in Fig. 7 (,
) is an external perspective view showing the state in which the shutter is open when the B side of the cartridge is used.

Here, the A side of the disk cartridge refers to one wide side facing the cartridge main body, and the B side of the cartridge refers to the other wide side facing the A side.

As shown in the figure, a conventional disk cartridge 150 includes:
It has a rectangular cartridge body 152. An information recording medium (for example, a disk) is housed inside the cartridge body 152.

Further, the cartridge main body 152 has an A side 154a and an 8th side 154b as shown in FIGS. 7(b) and 7(c).

Furthermore, the A side 154a portion of the cartridge main body 152 and the
Each surface 154b has an opening 156m.

156b is provided.

Further, the conventional disk cartridge 150 has a shutter 158 that is slidably provided on the cartridge body 152. The shutter 158 is shown in FIG. 7(a).
As shown in the figure, when the cartridge 150 is not in use, the openings 156m and 156b are closed. In addition, when using the A side of the cartridge 150, Fig. 7 (
The shutter 158 moves to the position shown in b), and the opening 1
56a is opened. Further, when the B side of the cartridge 150 is used, the shutter 158 moves to the position shown in FIG. 7(C) to open the opening 156b.

[Problem that the invention seeks to solve]

However, in the conventional technology as described above, when the A side and B side of the disk cartridge are used, the shutter opens in the same direction, so when viewed from the disk cartridge side, the shutter is configured to open to the right or left with the center in the closed position. It becomes.

Therefore, the size of the shutter opening is naturally limited, and the mechanism of a portion of the shutter of the cartridge is also complicated.

Especially in the case of disk cartridges for magneto-optical disks,
It is necessary to ensure a size large enough to accommodate the bias magnet.
Conventional technology has the problem of not being able to deal with this problem.

[Purpose of the invention]

In order to solve the problems of the prior art described above, the present invention was designed to provide a disk cartridge as shown in FIGS. 6(-), 6(b) and 6(c).

In addition, FIG. 6(1)f(b)l(e) shows the disk cartridge 8 loaded into the loading device of the present invention.
FIG. 6(a) is a view when the disk cartridge is not used, FIG. 6(b) is a view when the A side of the disk cartridge is used, and FIG. 6(C) is a view when the B side of the disk cartridge is used. It is a diagram of the time.

The disk cartridge 8 loaded into the loading device of the present invention is composed of a cartridge main body 9 and a shutter 82 that slides on the main body 9, as shown in the figure.
The opening direction of the shutter 82 is movable in only one direction, left or right, from the central closed position (the state shown in FIG. 6(a)) when viewed from the cartridge body 9. That is, if the shutter 82 is set to move to the right and open when viewed from the main body 9 when using the A side 10m, as shown in FIG. 6(b), then the shutter 82 will open as shown in FIG. 6(c). 8 sides 1
0b is a cartridge in which the shutter 82 moves to the left when viewed from the main body 9 and opens when used.

In the figure, numerals 22m and 22b are the openings provided in the cartridge main body 9.

By doing so, it is possible to make the opening of the disk cartridge large.

Therefore, it is an object of the present invention to provide a loading device equipped with a simple and highly reliable shutter opening/closing mechanism compatible with the disk cartridge 8 as described above.

[Means for solving problems]

According to the present invention, the above-mentioned object is a loading device into which a cartridge is loaded, which houses an information recording medium therein and is provided with a shutter that opens and closes only in one direction. It has a holder for holding the cartridge, and the holder has two levers rotatably provided at different positions on the holder as means for opening and closing the shutter provided in the cartridge, and each of the levers has a This is achieved by a loading device characterized in that the two can be rubbed against each other.

〔Example〕

Hereinafter, embodiments of the present invention will be described specifically and in detail based on the drawings. Fig. 1 is an exploded perspective view showing an embodiment of the loading device of the present invention.

The loading device 90 of this embodiment includes a cartridge holder mechanism that holds a disk cartridge and opens and closes a shutter, a crank 9 mechanism that has a disk crank 9 and a bias magnet, and a drive motor and a deceleration mechanism. A drive mechanism section composed of a gear train and synchronized gears,
The apparatus includes a loading mechanism section that includes a cam rack and a drive pinion gear and drives the cartridge holder and the crank Δ between a loading start position and a disc recording/reproducing position.

Each mechanical section will be explained in more detail below.

First, the cartridge holder mechanism will be explained.

As shown in FIG. 1, the cartridge holder body 3 is provided with two shutter levers 31 which are attached to rotate about a fulcrum provided at the bottom of the body 3. The pin 31m on the shutter lever 31 is provided in the cartridge holder main body 3 and engaged with the nine guide groove 3a, and the shutter lever 31 is urged forward by a spring (not shown), so that the pin 31m in FIG. The indicated position is the initial position. Further, a shutter lever 32 is rotatably provided on a fulcrum provided on the shutter lever 31, and the shutter lever 32 is urged by a spring 33, so that the shutter lever 32 is rotated as shown in FIG. It is installed so that the position shown is the initial position. The holder stop/4'34 is mounted so as to rotate around the rising part inside the cartridge holder 3 as a fulcrum.
The position shown in FIG. 1 is the initial position. A stepped roller 35 is rotatably fitted to a pin on a rising portion on the outside of the cartridge holder 3.

The above is the explanation of the cartridge holder mechanism section.

Next, the clamper mechanism will be explained.

As shown in the figure, a bias magnet 103 is provided on a clamp base 105. Further, a clamper 104 is provided on the clamp base 105, and the clamper 104
is mounted so that its initial position is the position shown in FIG. 1 by two levers 107 that are biased upward by a spring and swing in the vertical direction. Clamp base 10
Sliders 102 are fixed to both sides of 5. The pin 121 on the slider 102 is inserted into the elongated hole 1 of the slider 101.
Since the clamp base 105 is fitted into the long hole 101b and is biased in the tensile direction by the spring 122, the lower surface of the elongated hole 101b is set as the reference position.

The above is the explanation of the clamper mechanism.

Next, the drive mechanism section will be explained.

As shown in FIG. 1, the frame 4 includes drive motors 43 and 5.
A reduction gear train 42 consisting of individual gears is attached,
The final stage of the reduction gear train 42 includes two synchronizers 41.
are meshed to drive one of the two. Since each synchro gear 41 is fixed to the shaft 44, it rotates synchronously. Also, some of the gears (two in the figure) of the gear train 42 for deceleration mentioned above.
is rotatably supported by a shaft 44.

The above is the explanation of the drive mechanism section.

Next, the four-ding mechanism will be explained.

As shown in FIG. 1, a drive gear 11 having a large gear and a small gear is provided at a fulcrum on the side plate 1. The pinion gear portion of the drive gear 11 is provided with an idler gear 1 on the side plate 1.
The two are attached so that they interlock. Further, the rack ears (not shown) of the cam rack 2 guided by the pins 21 that fit into the long holes 1b on the side plate 1 are connected to the drive gear 11.
It meshes with the large gear part of.

In the figure, the cartridge holder 3 is guided by a stepped roller 35 that fits into an L-shaped hole 1m on the side plate 1, and the clamp base 105 is guided by a pin 121 that fits into a long hole 1c. The pin 36 on the cartridge holder 3 fits into the guide groove 2 on the cam rack 2,
A pin 111 on the slider 101 fits into the guide groove 2b. The pin 14 on the side plate 1 is connected to the long hole 1 on the slider 101.
01 & to guide the slider 101.

The idler gear 12 is a synchro gear 41 of the drive section.
meshes with

The above is the explanation of the loading mechanism section.

In the figure, two safety pins 45 are provided at the upper part of the frame 4 for positioning the disk cartridge when loading it.

Next, the operation of the loading device having the above configuration will be explained.

2(a), 2(b), and 2(c) are side sectional views of the loading device shown in FIG. 1, FIG. 2(,) is a view when the disk cartridge is not inserted, and FIG. 2(c) is a diagram showing the disk cartridge in the middle of being inserted, and FIG. 2(c) is a diagram after the disk in the disk cartridge has been flung.

Also, Figures 3 (,) and '(b) are plan views of the cartridge holder, Figure 3 (,) is a diagram when the disk cartridge is being inserted, and Figure 3 (b) is when the disk cartridge is inserted to the rearmost part. It is a diagram when it is suddenly inserted.

In FIG. 2(a), this figure is a sectional view of the cartridge holder 3 at the initial position in FIG.
The horizontal position is regulated by the hook portion of the hole stop/4' 34 being hooked onto the pin 13 on the side plate 1. Insert disk cartridge 8 into front panel 20
When you insert the cartridge through the cartridge insertion slot in Figure 3 (,)
When the cartridge 8 enters the position shown in , the shutter lever 32 on the right side in the figure
The distal end portion 32m is inserted. Also, at this time, the tip 32m of the shutter lever 32 on the left side, which is the opposite side, does not have a notch to be inserted onto the shutter 82, so it is pushed by the disk cartridge 8 and the shutter lever 31 on the left side is pressed.
is at a position slightly rotated in the direction of counterclockwise rotation. Furthermore,
When cartridge 8 is pushed in, the right shutter lever 3
1 rotates clockwise, and the left shutter lever 31 rotates counterclockwise, resulting in the state shown in FIG. 3(b).

Further, from FIG. 3(a) to FIG. 3(b), the shutter lever 32 rotatably provided at a fulcrum on the right shutter lever 31 moves the shutter 82 to the left.

Further, as shown in FIG. 1, the two shutter levers 31 are shaped so that when they pass each other at their intersections, a 7 is formed.

Next, Figure 4 (1) # (b) and Figure 5 (a),
The operation of this embodiment will be explained using (b). Incidentally, FIGS. 4(a) and 4(b) are explanatory diagrams of the operation of the shutter lever, and FIG. 5(a) is an illustration of the operation of the shutter lever.

(b) is an explanatory diagram of the operation of the arm of the cartridge.

As shown in FIG. 4(,), the shutter lever 32 is biased by the spring 33 to maintain its initial position, and
When a enters the notch 82 of the shutter 82, the lever 32
The shoulder portion 32b prevents the counterclockwise rotation of the shutter 82 and prevents the shutter lever 32 from coming off from the notch of the shutter 82. On the other hand, as shown in FIG. 4(b), when the shutter lever 32 comes into contact with the edge portion 82b of the shutter 82, the shutter lever 32 quickly rotates counterclockwise to climb up the step of the edge portion 82b. be able to.

When the disk cartridge 8 is pushed in to the position shown in FIG. 3(b), the cartridge stopper 37 biased by the spring 38 pushes the disk cartridge 8, as shown in FIG. 8 is locked, but this locking force is due to the spring 38
In this state, the cartridge 8 is removable. Further, as shown in FIG. 3(b), when the disk cartridge 8 is completely inserted, the hook part of the holder stop horn 434 shown in FIG. 1 comes off the pin 13 fixed to the side plate 1, and the cartridge holder 3 becomes movable in the horizontal direction.

In the state shown in FIG. 3(b), the convex portion 31m of the shutter lever 31 is detected by an automatic interrupter (not shown), so that the drive motor 43 shown in FIG. 1 is started, and the reduction gear train 42. The cam rack 2 is driven rearward via the synchro gear 41°, the idler gear 12t, and the dynamic gear 11. When the cam rack 2 moves to the position shown in FIG. 5 (lower side), the outer R convex portion of the cartridge stopper 437 escapes from the tipper hole 2C on the cam rack 2, so the movement of the cartridge stopper 37 is restricted, and therefore the disk cartridge 8 is fixed to the cartridge holder 3. Further, at this time, the cartridge holder does not move.

Further, when the cam rack 2 moves rearward, the cartridge holder 3 moves horizontally by the L-shaped hole 1a of the side plate 1 and the guide groove 2a of the cam rack 2, and then moves downward and is fixed. At this time, the flang base 105 moves downward through the elongated hole 1e of the side plate 1 and the guide groove 2bVc of the cam rack 2. Note that the stroke and timing of the flang base 105 are determined independently of the movement of the cartridge holder 3. Further, the flang base 105 is attached to the slider 10.
Since the slider 101 is urged downward by the spring 122 via the slider 101, even after the position of the flang base 105 is restricted by the upper part of the cartridge holder 3, the slider 101 moves downward and stops at the set position.

Further, the ejecting operation for ejecting the disk cartridge can be performed by performing an operation opposite to the above-mentioned operation.

In this embodiment, as shown in FIG. 1, two shutter levers for opening and closing the shutter of the disk cartridge are provided inside the cartridge holder, and the levers can be rubbed against each other at the intersections. The present invention is not limited to this, and it is also possible to provide the shutter opening/closing lever outside the cartridge holder.

〔Effect of the invention〕

As described above in detail and specifically, according to the loading device of the present invention, it is possible to use a cartridge in which the shutter opens and closes only in one direction. Further, as a result, the mechanism of a part of the shutter of the cartridge can be simplified, and the size of the shutter opening can be increased.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing one embodiment of the loading device of the present invention, FIGS. 2(1), (b), and (C) are side sectional views of the loading device shown in FIG. a) and (b) are plan views of the cartridge holder, FIG. 4(a)
and (b) is an explanatory diagram of the operation of the shutter lever, Fig. 5 6)
and (b) is an explanatory diagram of the operation of the cartridge stopper, No. 6
Figures (,), (b) and (,) are external perspective views of a disk cartridge loaded into the loading device of the present invention.
FIGS. 7(b) and 7(c) are external perspective views of conventional disk cartridges. 3: Cartridge holder body 31, 32: Shack lever agent Patent attorney Jo Taira Yamashita

Claims (1)

[Claims] (1) A loading device into which a cartridge is loaded, which houses an information recording medium and is provided with a shutter that opens and closes only in one direction, the loading device having a holder that holds the cartridge; The holder has two levers rotatably provided at different positions on the holder as means for opening and closing the shutter provided in the cartridge, and the levers are capable of rubbing against each other. A loading device characterized by: