JPS63285760A - Loading device - Google Patents

Abstract

PURPOSE:To easily fetch a recording medium manually even at the emergency time of a power failure, etc. by consisting of a 1st movable member moving in the ejecting direction of the medium and 2nd movable member moving in parallel manually in the reverse direction thereto. CONSTITUTION:When an emergency rack gear 22 is pushed by a clip 22a, etc. from the hole 201a on a front panel 201, the small gear 23a biting therewith is rotated counter-clockwisely and a cam rack 2 is accelerated in the opposite direction to the gear 22 with the rotation of the large gear 23b co-axial therewith, becoming in the ejection state with its parallel movement. The cam rack 2 constitutes both side walls of a cassette holder and a recording medium can be fetched easily manually even at the emergency time of a power failure, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a loading device for loading an information recording medium such as an optical disk or a magneto-optical disk into an information recording/reproducing apparatus.

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

Further, the present invention is applicable not only to information recording/reproducing devices but also to devices for reproduction only.

[Conventional technology]

Conventionally, loading devices that load information recording media such as optical disks and magneto-optical disks into information recording and reproducing devices are:
In many cases, the loading and ejecting operations of the medium are performed electrically for reasons such as improved operability.

[Problem that the invention seeks to solve]

However, in the conventional example as described above, if a problem such as a malfunction of the microcomputer or a power outage occurs in the information recording/reproducing device while the information recording medium is being loaded into the information recording/reproducing device, electric ejection is performed. There was a problem in that the information recording medium could not be removed from the information recording/reproducing apparatus because the structure became inoperable.

〔the purpose〕

The present invention was developed in view of the problems of the prior art described above, and its purpose is to provide a loading device capable of taking out an information recording medium loaded in an electric loading device even in an emergency such as a power outage. Our goal is to provide the following.

[Means for solving problems]

According to the present invention, the above-mentioned object is provided in a loading device that electrically performs an ejecting operation of an information recording medium; A first movable member that moves in conjunction with each other, a second movable member that moves in a direction opposite to the movement of the first movable member in the ejecting direction of the medium, and a second movable member that moves manually to eject the medium. This is achieved by a loading device characterized in that it has a means for allowing movement in a direction opposite to the ejection direction of the loading device.

〔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 one embodiment of a loading device.

The loading device 90 of this embodiment includes a cartridge holder mechanism that holds a disk cartridge and opens and closes a shutter, a clamper mechanism that has a disk clamper and a bias magnet, a drive motor, a reduction gear train, and a synchro gear. and a loading mechanism section that is configured with a cam rack and a drive 1j'ion gear and drives the cartridge holder and clan i4 between a loading start position and a disc recording/playback position. It is composed of

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 engaged with a guide groove 3a provided in the cartridge holder main body 3, and the shutter lever 31 is urged forward by a spring (not shown), so that it is not shown in FIG. The indicated position is the initial position. Further, since the shutter lever 32 is rotatably provided on a fulcrum provided on the shutter lever 31, and the shirt sag 32 is biased by a spring 33, the shutter lever 32 is rotated as shown in FIG. It is installed so that the position shown in is the initial position. The holder stopper 34 is attached so that the inner upright portion of the cartridge holder 3 rotates about the υ portion as a fulcrum, and has the initial position shown in FIG. 1. A stepped roller 35 is rotatably fitted to the pin of the raised structure 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. Also, a clamper 104 is provided on the clamp base 105. ton/amount 10
4 is mounted so that the 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 1
Sliders 102 are fixed to both sides of 05. The pin 121 on the slider 102 is fitted into the elongated hole 101bK of the slider 101, and the clamp base 105 is urged in the tensile direction by the spring 122, so the lower surface of the elongated hole 101b is set at the reference position. It is said that

The above is the explanation of the clamper mechanism section.

Next, the first drive mechanism section will be explained.

As shown in FIG. 1, one frame 4 has 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 synchronized gears 41.
are meshed to drive one of the two. Since each synchro gear 41 is fixed to the shaft 44, they rotate in synchronization. Also, some of the gears (two in the figure) of the aforementioned reduction gear train 42
is rotatably supported by a shaft 44.

The above is the explanation of the drive mechanism section.

Next, the loading mechanism section will be explained.

As shown in FIG. 1, a driving gear 11 having a large gear and a small gear is provided at a fulcrum on the side plate 1. As shown in FIG. An idler gear 12 provided on the side plate 1 is attached to the small gear portion of the drive gear 11 so as to mesh therewith. Further, a rack gear portion (not shown) of the cam rack 2, which is guided by a pin 21 that fits into the elongated hole 1blC on the side plate 1, meshes with the large gear portion of the drive gear 11.

In the figure, the cartridge holder 3 is guided by a stepped roller 35 that fits into the L hand hole 1a on the side plate 1, and the flang base 105 is guided by a pin 121 that fits into the elongated hole 1c. The pin 36 on the cartridge holder 3 fits into the guide groove 2a 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 10 on the slider 1.
11 to guide the slider 101.

The eye dryer 12 is connected to the synchro gear 41 of the drive section.
meshes with

The above is the explanation of the loading mechanism section.

In the figure, nine pins 45 provided on two sides of the upper part of the frame 4 are for positioning the disk cartridge when it is loaded.

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

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

3(a) and 3(b) are plan views of the cartridge holder, FIG. 3(,) is a view when the disk cartridge is being inserted, and FIG. 3(b) is a view when the disk cartridge is inserted to the rearmost part. This is a diagram when

2(,) is a cross-sectional view of the cartridge holder 3 at the initial position in FIG.
In this case, the hook part of the holder stock horn arm 34 is connected to the pin 1 on the side plate 1.
3, the horizontal position is regulated. Disk cartridge 8 to 70tonodanel 201
When the cartridge 8 is inserted into the cartridge insertion slot shown in FIG. 32 is inserted. Also, at this time, since the tip 32a of the left shutter lever 32 on the opposite side does not have a notch to be inserted onto the shutter 82, it is pushed by the disk cartridge 8 and the left shutter lever 31 is rotated counterclockwise. The position is slightly rotated in the direction. Further, when the cartridge 8 is pushed in, the right shutter lever 31
rotates in the clockwise direction, and the left shutter lever 31 rotates in the counterclockwise direction, resulting in the state shown in FIG. 3(b). Further, from FIG. 3(a) to FIG. 3(b)K, the shirt sag/$32 rotatably provided at the 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 they can pass each other at the intersection.

Next, Figure 4 (-), (b), and Figure 5 (member)
The operation of this embodiment will be explained using e (b). still,
Figure 4(a).

(b) is an explanatory diagram of the operation of the shutter lever, and Fig. 5 (
a) and (b) are explanatory views of the operation of the cartridge stopper.

As shown in FIG. 4, the shutter lever 32 is biased by the spring 33 to maintain its initial position, and the tip 32
When m enters the notch 82a of the shutter 82, the lever 32
The shoulder portion 32b prevents the lever 32 from rotating in the counterclockwise direction, 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 to the position shown in FIG. 3(b), the disk cartridge 8 is pushed in by the cartridge stopper 37 biased by the spring 38, as shown in FIG. is locked, but this locking force is due to the spring 38
In this state, the cartridge 8 is removable. Furthermore, as shown in FIG. 3(b), when the disk cartridge 8 is completely inserted, the hook portion of the holder stopper 34 shown in FIG.
13, and the cartridge holder 3 becomes movable in the horizontal direction.

In the state shown in FIG. 3(b), when the convex portion 31 of the shutter lever 31 is detected by the 7-way interaction device (not shown), the drive motor 43 shown in FIG. 41, the cam rack 2 is driven rearward via the drive gear 11 via the idler gear 12. When the cam rack 2 moves to the position shown in FIG. is fixed to the cartridge holder 3. or,
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 semi-hole 1m of the side plate 1 and the guide groove 2m of the cam rack 2, and then moves downward and is fixed. At this time, the clamp base 105 moves downward by the elongated hole IC of the side plate 1 and the guide groove 2bK of the cam rack 2. Note that the stroke and timing of the clamp base 105 are determined independently of the movement of the cartridge holder 3. Further, the clamp base 105 is attached to the slider 101.
Since the slider 101 is urged downward by the spring 122 via the clamp base 105, the slider 101 moves downward and stops at the set position even after the position of the clamp base 105 is restricted by the upper part of the cartridge holder 3.

At this time, the clamper 104 clamps the disk on the turntable 7 with an appropriate pressure force, and the core magnet 103 is fixed with a predetermined gap from the disk surface.

Further, the normal ejecting operation is the opposite of the above-mentioned loading operation.

Next, an ejection operation in the event of an emergency such as a power outage will be explained.

According to this embodiment, the above-mentioned ejecting operation is performed manually.

6(a) and 6(b) are side sectional views of an embodiment of the present invention, and FIG. 6(,) is a diagram showing a loading state.
FIG. 6(b) is a diagram showing the ejected state.

As shown in the figure, the side plate 1 has pins 15a and 15btl'' fixed to the side plate 1 so as to slide and move as guides.
An emergency rack gear 22 is attached. The rack gear 22 is also mounted to rotate around a pin 16 fixed on the side plate 1.
It meshes with the small gear portion 23m of the stepped spur gear 23. Since the large gear portion 23b of the two-stage spur gear 23 meshes with the upper rack portion of the cam rack 2, the cam rack 2 and the emergency rack gear 22 are configured to move in conjunction with each other with different strokes in opposite directions. . Therefore, the emergency rack gear 22 moves in conjunction with the cam rack 2 even during normal loading and ejecting operations.

Next, in the loading state shown in FIG.
When the emergency rack gear 22 is pushed at m, the emergency rack gear 22 moves rearward, thereby causing the two-stage spur gear 23 to rotate counterclockwise. The emergency rack gear 22 is meshed with the small gear 231A side of the two-stage spur gear 23, and the cam rack 2 is meshed with the large gear 23b side.
are engaged, so the emergency rack gear 2
The stroke of 2 is accelerated and transmitted to the cam rack 2,
The cam rack 2 moves toward the front mother tongue 201.

Then, it moves to the position shown in FIG. 6(b) and enters the eject state.

In this state, even if the clip 22@ is pulled out, the cam rack 2 remains in the ejected state.

Further, in this embodiment, a combination of a rack gear and a spur gear is used as the means for interlocking the emergency lever and the cam, but it is also possible in the present invention to substitute a link mechanism for this.

Further, in the above embodiments, a cartridge-type information recording medium has been described as an example, but the present invention is not limited to this, and can also be applied to a non-cartridge type information recording medium.

〔Effect of the invention〕

As described specifically and in detail above, according to the present invention, the loaded information recording medium can be easily manually removed from an electric loading device even in an emergency such as a power outage.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing one embodiment of the loading device, Fig. 2 (-), (b) and (c) are side sectional views of the loading device shown in Fig. 1, and Fig. 3 (a) and (b) is a plan view of the IJ holder; Figures 4 (,) and (b) are illustrations of the operation of the shutter lever; Figures 5 (,) and (b) are illustrations of the operation of the cartridge stopper; 6th
Figures (,) and (b) are side cross sections showing embodiments of the present invention. 2: Cam rack, 22: Emergency rack gear,
201: Front panel.

Claims (1)

[Claims] (1) In a loading device that electrically performs an ejecting operation of an information recording medium; , a second movable member that moves in a direction opposite to the movement of the first movable member in the ejecting direction of the medium, and manually moving the second movable member in a direction opposite to the ejecting direction of the medium. A loading device characterized in that it has means for making it possible to do so.