JPH041941B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a disk recording/reproducing device for recording or reproducing information, and particularly to a cassette drawer for automatically loading a disk stored in a cassette into the device main body. This invention relates to a deing device.

Conventional structure and problems Conventionally, this type of disk has been known to reduce its playback ability when touched by hand, or to be stored in a cassette for convenient handling and storage. This is a so-called video disc device type in which a stored cassette is inserted into a cassette insertion slot provided in a recording/playback device, the disc is automatically ejected from within the device, only the empty cassette is taken out of the device, and the disc is played back. Although the types and recording media were different, there was a type of front loading device of a video tape recorder that automatically loaded the cassette into a predetermined position after inserting the cassette into the slot. .

However, in the former case, after inserting the cassette, the empty cassette must be manually removed from the device, and when removing a disk from the device, the empty cassette must be inserted again.
Not only is the operation cumbersome, but it also requires a mechanism to automatically take out the disk into the device.Furthermore, it requires an elevating mechanism to raise and lower the rotating means for rotating the disk, resulting in a complicated structure. However, it was difficult to simplify the device. On the other hand, in the latter case, the cassette holder on which the cassette is placed is moved by two levers that engage with a loading drive mechanism consisting of a plurality of gears provided on both sides of the cassette holder. Not only is this complicated and difficult to assemble, but the loading mechanism is not easy to adjust. Furthermore, since the loading drive mechanism is disposed on both sides of the cassette holder, it is difficult to make the main body of the apparatus as compact as the cassette size.

OBJECTS OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks of the prior art, and is capable of automatically loading a disc into a predetermined position simply by inserting a cassette containing a disc into the cassette insertion slot of a recording/reproducing device. It is an object of the present invention to provide a compact cassette loading device which not only has a simple configuration but also is easy to operate.

Structure of the Invention The present invention includes a cassette holder for storing a cassette, a loading plate, a first guide groove through which pins provided on both sides of the cassette holder are inserted to guide the movement of the cassette holder, and a first guide groove for guiding the movement of the cassette holder. a loading guide having a second guide groove through which a pin provided on both sides is inserted and guides the movement thereof, and an inclined guide groove in which the pin of the cassette holder engages with the loading plate; and moving the loading plate along the second guide groove,
The pin of the cassette holder is guided according to the shape of the first guide groove at the intersection of the first guide groove and the inclined guide groove of the loading plate, and the cassette is at a first position where the cassette is inserted. a cassette loading device in which an inner disk is moved between a second position where the disk is played, and power is transmitted to a rack plate provided on the loading plate by an external loading drive mechanism; When the loading plate is moved along the second guide groove of the loading guide, the cassette holder is moved such that, for example, a pin disposed on the cassette holder passes through an interlocking groove formed on the loading plate. Since it is engaged with the first guide groove of the loading guide, it follows the movement of the loading plate and moves in conjunction with the first guide groove of the loading guide.

Therefore, the disk can be moved to a predetermined position in the main body of the apparatus by simply moving the loading plate in one direction, so that it is possible to provide a simple cassette loading apparatus that is easy to operate.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 are perspective views of the disk cassette used in the present invention. FIG. 1 shows the shutter closed before being inserted into the device body, and FIG. FIG. 6 is a diagram showing the shutter in an open state when inserted. In FIGS. 1 and 2, the disk 1 has side portions 2a, 2b and an end portion 2.
It is rotatably housed inside a cassette housing 2 consisting of cassettes c and 2d. Reference numerals 3a and 3b are positioning grooves that engage with a cassette temporary fixing member of a cassette holder, which will be described later, to position the cassette housing 2 within the cassette holder. A window 6 is opened in a part of the cassette housing 2, so that a part of the disk 1 is exposed to the outside as shown in FIG. An optical head (not shown) is inserted into the window 6 to record or reproduce desired information on the disk 1.

Although not shown, an opening 5 is provided at the center of rotation of the disk 1 into which a rotating means for rotating the disk 1 is inserted. Reference numeral 8 denotes a sheet-like shutter that closes the window 6 and the opening 5, and is formed in a U-shape so as to cover the window 6 and the opening 5, and is attached to the recess 7 of the cassette case 2.
It is arranged to be able to slide freely in the direction of arrow A on the top. This shutter 8 prevents dust and the like from entering the cassette housing 2 through the window 6 and opening 5. Reference numeral 9 denotes a sheet-like slide plate that is integrally attached to the shutter 8, and slide grooves 12a and 1 formed inside the cassette case.
2b. A protrusion 10 is formed at one end of the slide plate 9 to protrude, and is inserted into a long hole 4a formed along the side 2a of the cassette housing 2, and is inserted into an elongated hole 4a from the long hole 4a to the outside. is coming. 4b is a long hole formed opposite to the long hole 4a, and is arranged so that both sides of the disk can be used. As will be explained later, the protrusion 10 engages with a protrusion provided on the cassette holder on which the cassette case 2 is placed, and when the cassette case 2 is inserted into the cassette holder. It is designed to be moved in the direction of arrow B. Therefore, when the cassette case 2 is inserted into the cassette holder, the shutter 8 that covers the window 6 and the opening 5 moves in the direction of the arrow as the slide plate 9 moves, as shown in FIG. Since it is moved in the C direction, the window 6 and the opening 5 are opened, and the optical head and disk rotating means can be inserted.

On the other hand, one end of a stretchable elastic member 11 is locked to the other end of the slide plate 9. Note that since the other end of the elastic member 11 is locked to a pin (not shown) provided in the cassette housing 2, normally the elastic member 11 is fixed as shown in FIG. The slide plate 9 is pulled in the direction of arrow D by the elastic force of the window 6 and the opening 5.
It is configured so that it is always closed by the shutter 8. Therefore, when the cassette housing 2 is removed from the cassette holder, the protrusion of the cassette holder and the protrusion 10 of the slide plate 9 are disengaged, and the shutter 8 is automatically moved in the direction of arrow D. The window portion 6 and the opening portion 5 are completely closed to prevent dust and the like from entering.

Next, an embodiment of the cassette loading device of the present invention will be described based on FIGS. 3 and 4.

FIG. 3 is a perspective view showing the configuration of this device,
FIG. 4 is an exploded perspective view showing the configuration of the loading section of this device.

In FIGS. 3 and 4, 71 is a base for attaching a disk closing mechanism, a loading drive mechanism, etc., and 79 (indicated by a dashed-dotted line) is formed integrally with the base 71. This is the front panel. In addition, the front panel 79
is provided with an insertion port 80 for inserting the cassette housing 2 into the inside of the apparatus. Reference numeral 63 denotes an opening/closing lid that opens and closes the insertion port 80, and is rotatable about pivot pins 64a, 64b provided at both ends as supporting points.
It is supported by b. Normally, the insertion port 80 is
The insertion port 80 is configured to be closed at all times.
This prevents dust, etc. from getting in. 65 is a pin provided integrally with the opening/closing lid 63;
It engages with the inclined portion 68 of the opening/closing arm 67.
The opening/closing arm 67 has a rotating shaft 70 and a sliding shaft 69, and the rotating shaft 70 engages with the hole 57 of the loading guide 51a to be rotatable. Loading guide 51b
is attached to. The slide shaft 69 is
It engages with a cam 44 that is integrally provided on the loading plate 35, and its operation will be explained later.

Reference numeral 13 denotes a cassette holder on which the cassette case 2 is placed, and has a pair of receiving parts 20a, 20 at both ends for receiving both sides 2a, 2b of the cassette case 2.
0b, and is formed in a substantially U-shape. In the receiving parts 20a and 20b, there are protrusions 1 that engage with the protrusions 10 provided on the cassette housing 2 described above.
6a, 16b and the positioning groove 3 of the cassette housing 2
Temporary cassette fixing members 15a and 15b are provided for temporarily positioning the cassette housing 2 within the cassette holder 13 by engaging with the cassette members 15a and 3b. The cassette temporary fixing members 15a and 15b are formed of elastic members such as leaf springs, and are configured so that the cassette housing 2 can be manually attached to and removed from the cassette holder 13. Also, 21a, 2
Reference numeral 1b denotes a protruding piece formed by bending one end of each receiving portion 20a, 20b, and when the cassette case 2 is positioned in the cassette holder 13 by the cassette temporary fixing members 15a, 15b, the cassette case It is arranged with a slight gap so that it does not come into contact with the end 2c of 2.
The front part 14 of the cassette holder 13 is slightly sloped downward to facilitate insertion of the cassette housing 2. 17 is the protrusion 6 of the cassette housing 2
and an opening provided corresponding to the opening 5,
It is formed so that it does not come into contact even if a rotating means, an optical head, etc., which will be described later, are inserted. 18a,1
9a, 18b, 19b are the respective receiving parts 20a, 20
The pins 42a,
43a, 42b, and 43b are each formed to be integrally attached. Pins 42a and 43 attached to the cassette holder 13
a, 42b, and 43b engage with respective guide grooves provided in a cassette cover, loading plate, loading guide, etc., which will be described later, to enable the cassette holder 13 to move freely in the directions of arrows E and F.

Reference numeral 22 denotes a substantially U-shaped cassette cover having end portions 34a and 34b formed to cover the cassette holder 13, and the pins 42a and 43 of the cassette holder 13 on which the cassette case 2 is placed.
a, and guide grooves 30a, 31a, and 30 provided at the ends of 42b, 43b, and 34a, 34b.
b and 31b are engaged with each other, so that the cassette holder 13 can be moved freely in the direction of arrow E. Note that the ends 34a, 34b
In each case, move the cassette cover 22 in the direction of arrow G.
Regulation pins 32a, 32 for regulating movement in the direction
b is integrally attached. 33a, 33
b indicates that the cassette temporary fixing member 1 is attached when the cassette housing 2 is inserted into the cassette holder 13.
5a and 15b are notches formed so that the cassette holder 13 can be freely displaced toward the outside. Reference numerals 26, 27, 28, and 29 are cassette holding members made of elastic members such as leaf springs that are integrally provided with the cassette cover 22, and press and support the cassette housing 2 temporarily positioned on the cassette holder 13. It is something to do. 24
25 is an opening for inserting a clamper to be described later, and 25 is an opening for rotating a clamp arm of the clamper. The front end 23 of the cassette cover 22 is bent upward as shown in FIG.
When the cassette cover 2' is loaded onto a disk rotating means (to be described later) and ready to be played, the front end of the cassette cover 22 will be positioned opposite the insertion opening 80, and even if another cassette housing 2' is inserted, the front end of the cassette cover 22 will be 23 and is configured so that it cannot be inserted into the inside of the device.

35 includes side portions 36a, 36b having guide grooves 40a, 41a and 40b, 41b for moving the cassette holder 13 in the directions of arrows E and F and moving the cassette cover 22 in the direction of arrow G. It is a loading plate with an inverted U-shape, and further has both side parts 36a and 36b.
, there are pins 38a, 39a and 38 for moving the loading plate 35 in the direction of arrow H.
b, 39b are arranged. Note that the guide grooves 40a, 41a and 40b, 41b correspond to pins 42a, 43 provided on the cassette holder 13.
a, 42b, and 43b are each formed to be slidable, and as shown in FIG.
They are arranged at an angle of 40a' and 40a', respectively.
It has slopes 0a'', 40b', 40b''... Reference numeral 37 is an opening for inserting a rotating means, an optical head, etc., which will be described later, and is formed so that even if the loading plate 35 moves in the direction of arrow H, it will not come into contact with the rotating means, optical head, etc. ing. Further, on the bottom surface of the loading plate 35, a loading mechanism 60 consisting of a loading motor 62 attached to a base 71, a worm gear 61a, a worm wheel 61b, gears 61c, 61d, 61c, and 61f is engaged with and loaded. A rack plate 50 for moving the loading plate 35 in the direction of arrow H, and inclined portions 45, 47 and a straight portion 46 for engaging with the slide shaft 69 of the opening/closing arm 67 and rotating the opening/closing arm 67. and a cam 48 having a guide groove 49 consisting of a horizontal portion 49a, an inclined portion 49b, and a horizontal portion 49c for engaging with and rotating the clamp arm, which will be described later, are each integrally formed. is attached to.

51a and 51b are arranged outside the loading plate 35, and are connected to the cassette holder 13, the cassette cover 22, and the loading plate 3.
This is a loading guide to guide the movement of the 5th grade.

Since the loading guides 51a and 51b are symmetrical, only the loading guide 51b will be described here for the sake of explanation. 58b engages with the pivot pin 64b of the opening/closing lid 63 to rotate the opening/closing lid 6.
52b, 53.
b is a dogleg-shaped first guide groove that guides the cassette holder 13 in the directions of arrows E and F by engaging with pins 42b and 43b, respectively. 54b
is a third guide groove that engages with the regulating pin 32b of the cassette cover 22 and guides the cassette cover 22 in the direction of arrow G. 55b and 56b are pins 38b and 39 of the loading plate 35
5 is a second guide groove that engages with 5 and guides the loading plate 35 in the direction of arrow H;
Reference numeral 7 denotes a hole that engages with a rotating shaft 70 of the opening/closing arm 67 to rotatably support the opening/closing arm 67.

Reference numeral 72 denotes a clamp that presses and holds the disk 1 housed in the cassette housing 2 against a rotating means to be described later, and is rotatably attached to a clamp arm 75 via a shaft 73 and an elastic member 74. . Reference numeral 83 denotes a hole that engages with the shaft 73, and is formed so that it does not come into contact with the shaft 73 even when the clamp 72 presses and holds the disk 1 against the rotating means and rotates. Although the clamp arm 75 is not shown, it is disposed on the base 71 at a rotational position with pins 77a and 77b as pivots, and is rotated by engaging with the cam 48 described above. 72 is activated to press and hold the disk 1. Side portion 76 of the clamp arm 75
b is provided with a pin 78 (see FIG. 5) that engages with the guide groove 49 of the cam 48.

Next, the loading operation of the present invention will be explained with reference to FIGS. 5 to 9.

5 to 7 are cross-sectional views of the device,
Fig. 5 is a cross-sectional view before inserting the cassette case;
Figure 6 is a cross-sectional view when the cassette housing is inserted;
FIG. 7 shows a cross-sectional view of the disk when it is pressed and held by the rotating means. Also, Figure 8,
FIG. 9 is a top sectional view showing the loading state of the cassette case, FIG. 8 is a top sectional view of the device in the first position, and FIG. FIG. 6 is a top sectional view in a second possible position;

In FIG. 5, the cassette holder 13 is waiting at the first position where the cassette housing 2 can be inserted, and the loading plate 35 is also located on the insertion port 80 side. Here, the opening/closing arm 67 is held such that the slide shaft 69 is in contact with the inclined portion 47 of the cam 44 that is integrally arranged on the loading plate 35, and at this time, the opening/closing lid 63 is held by the elastic member 66. Due to the urging force of the insertion port 80
The pin 65 of the opening/closing lid 63 and the inclined part 68 of the opening/closing arm 67 are arranged to be in contact with each other or to be slightly spaced apart from each other so that the opening/closing lid 63 is positioned in a completely closed state.

Therefore, the insertion port 80 is always closed by the opening/closing lid 63, and dust and the like from the outside are prevented from entering. In addition, the opening/closing lid 6
3 is rotatable in the direction of arrow J, and an elastic member 6
The cassette case 2 can be inserted through the insertion opening 80 against the urging force of the cassette 6. On the other hand, the clamp arm 75 engages with a cam 48 that is integrally attached to the loading plate 35, so that even when the cassette case 2 is inserted into the cassette holder 13, the cassette case 2 and the clamp 72 are connected to each other. The guide groove 49 provided in the cam 48 and the side portion 76b of the clamp arm 75 do not contact each other.
It is arranged so that it is inserted and engaged with a pin 78 provided in the.

The guide groove 49 of the cam 48 consists of a horizontal portion 49a, an inclined portion 49b inclined downward from the horizontal portion 49a, and a horizontal portion 49c continuous to the end of the inclined portion 49b, The pin 78 provided on the clamp arm 75 is normally attached to the horizontal portion 49 of the guide groove 49 as shown in FIG.
It is locked on a. Note that when the loading plate 35 is moved in the direction of arrow K, the cam 48 is also moved in the direction of arrow K, so the pin 78 slides on the horizontal portion 49a of the guide groove 49.
Next, it begins to slide on the inclined portion 49b. At the same time, since the inclined portion 49b is inclined downward from the horizontal portion 49a, the clamp arm 75 begins to rotate in the direction of the arrow L using the pins 77a and 77b as spindles, and the pin 78 is inclined. By sliding the part 49b,
It rotates until it reaches the horizontal portion 49b. The pin 78
When the clamp 7 is slid onto the horizontal portion 49c, the clamp 7 rotatably held by the clamp arm 75
2, the disk 1 is pressed and held by the rotation means 82 as shown in FIG. 7, and the rotation of the clamp arm 75 is completed. In addition, since the pin 78 is locked to the horizontal portion 49c of the guide groove 49, the clamped state is maintained.

Conversely, in the clamped state, the cam 48
is moved in the direction of arrow K', the pin 78 of the clamp arm 75 slides on the horizontal part 49c of the guide groove 49 of the cam 48, passes through the inclined part 49b,
9a, the clamp arm 75 is reversed in the direction of arrow L', so that the clamp 72 is separated from the disk 1, and as shown in FIG. It is rotated so that it can be removed without contacting 72.

As mentioned above, the opening/closing lid 63 and the clamp 72 of this device are configured to be rotatable.

Therefore, in such an apparatus, when the cassette case 2 is inserted into the apparatus through the insertion opening 80 with the end 2c of the cassette case 2 facing forward, the opening/closing lid 63 will move in the direction of the arrow J. When the cassette case 2 is further inserted in the direction of the arrow X against the biasing force of the elastic member 66 of the opening/closing lid 63, the end 2c of the cassette case 2 is inserted into the cassette holder. 13 and begin sliding inside the cassette holder 13. At the same time, the cassette temporary fixing members 15a, 15b provided on the receiving parts 20a, 20b of the cassette holder 13 begin to come into contact with the side parts 2a, 2b of the cassette case 2, and then,
Cassette holding members 26, 2 of the cassette cover 22
It starts to come into contact with 7. Further, as the cassette housing 2 is inserted, the side portions 2a, 2 of the cassette housing 2
The cassette holder 22 is placed in the long holes 4a and 4b of 6.
The projections 16a, 16b of the receiving parts 20a, 20b are inserted into the projections 16a, and the elongated holes 4a are inserted into the projections 16a.
The protrusion 10 of the slide plate 9 disposed inside comes into contact with it. When the slide plate 9 comes into contact with the protrusion 16a, the insertion of the slide plate 9 is stopped by the protrusion 16a even if the cassette case 2 is further inserted. 2 slide grooves 12a, 12b formed inside
The robot begins to move in the direction of arrow B as shown in FIG. As a result, the shutter 8 integrally attached to the slide plate 9 also begins to move in the direction of arrow C, so that one end of the opening 5 is exposed, and then one end of the window 6 begins to be exposed. When the insertion of the cassette housing 2 continues, the shutter 8 moves in conjunction with the insertion of the cassette housing 2, and the window 6 is completely opened from the shutter 8, and then the opening 5 is opened. Shutter 8 is completely opened. At the same time, the cassette temporary fixing members 15a and 15b
and the positioning grooves 3a and 3b provided in the side parts 2a and 2b of the cassette housing 2 are respectively engaged,
The cassette case 2 is temporarily positioned in the cassette holder 13, and the cassette case 2 can be manually inserted with the end 2d of the cassette case 2 slightly exposed from the front panel 79 as shown in FIG. finish. This position is the first position mentioned above, and not only allows the insertion of the cassette housing 2, but also the position when the cassette housing 2 is manually removed from the apparatus.

At this time, a biasing force in the direction of arrow X' is always applied to the cassette housing 2 by the elastic member 11;
Since the biasing forces of the cassette temporary fixing members 15a, 15b and the cassette holding members 26, 27, 28, 29 described above are larger, the cassette housing 2
is placed in the cassette holder 13 while being pressed and held by the cassette temporary fixing members 15a, 15b and the cassette holding members 26, 27, 28, 29. In this state, if you manually push the cassette housing 2 slightly further in the direction of arrow X,
Although not shown, a loading start detector consisting of a photodetector or the like detects insertion of the cassette housing 2 and operates the loading mechanism 60.
The loading mechanism 60 is activated. Loading motor 62 of the loading mechanism 60
When the loading motor 6 starts to rotate, the loading motor 6 starts rotating.
2 is rotated through a worm gear 61a that is integrally attached to the loading motor 62.
The signal is transmitted to the worm wheel 61b, further transmitted to the gear 61d by the gear 61c, and then to the gear 61f via the gear 61e. Moreover, the gear 6
1f engages with a rack plate 50 disposed on the bottom surface of the loading plate 35 to transmit the driving force of the loading motor 62 to the loading plate 35.

Therefore, when the loading motor 62 starts rotating in a predetermined direction, the loading plate 3
5 begins to move in the direction of arrow K, and in conjunction with the movement of the loading plate 35, the cassette holder 13 on which the cassette case 2 is placed also begins to move in the direction of arrow K. Further, as the loading plate 35 moves, the slide shaft 69 of the opening/closing arm 67 begins to slide on the inclined portion 47 of the cam 44, so the opening/closing arm 67 begins to rotate in the direction of arrow O, and the clamp arm 75 The pin 78 also begins to slide in the guide groove 49 of the cam 48. When the slide shaft 69 of the opening/closing arm 67 is slid onto the straight part 46 via the inclined part 47 of the cam 44, the inclined part 68 of the opening/closing arm 67 comes into contact with the pin 65 of the opening/closing lid 63, and the above-mentioned The opening/closing lid 63 is prevented from rotating in the direction of arrow J' due to the biasing force of the elastic member 66. Slide shaft 69 of the opening/closing arm 67
However, while sliding on the straight portion 46 of the cam 44, the sixth
As shown in the figure, the opening/closing lid 63 has an opening/closing arm 67
The insertion port 80 is opened by being supported by the inclined portion 68 of the insertion port 68 . On the other hand, while the pin 78 of the clamp arm 75 is sliding on the horizontal portion 49a of the guide groove 49 of the cam 48, the clamp arm 75 is
As shown in the figure, the opening 24 of the cassette cover 22
A part of the clamp 72 is inserted into and supported by the clamp 72 .

Furthermore, when the loading plater 35 is moved in the direction of arrow K, the receiving portion 2 of the cassette holder 13
0b (Here, the operation of the receiving part 20a on the opposite side is the same as that of the receiving part 20b, so the explanation will be omitted.)
The pins 42b and 43b provided in the loading guide 51b are respectively connected to the first guide groove 52 of the loading guide 51b.
b, 53b changes the moving direction from the direction of arrow K to the direction of arrow P. The cassette holder 1
3 begins to move in the direction of arrow P, the cassette cover 22 also moves in conjunction with the movement of the pins 42b and 43.
b is the guide groove 30b, 31 of the cassette cover 22
Since they have been inserted through each point b, they also begin to move in the direction of arrow P.

At this time, the opening/closing arm 67 is connected to the inclined portion 4 of the cam 44.
5 has begun to slide and is rotated in the direction of arrow O'. When the opening/closing arm 67 is rotated, the opening/closing lid 63 also begins to rotate in the direction of arrow J' due to the biasing force of the elastic member 66. On the other hand, the clamp arm 75 is
The pin 78 is attached to the horizontal portion 4 of the guide groove 49 of the cam 48.
In order to start sliding on the inclined part 9a to 49b, it starts rotating in the direction of arrow L. The opening 5 and the window 6 of the cassette housing 2 are completely open, and the optical head, the rotating means, the clamp 72, etc. can be inserted therein.

When the cassette holder 13 on which the cassette case 2 is placed is further moved in the direction of arrow P, the rotating means 82 for rotating the disk 1 is inserted into the opening 17 of the cassette holder 13, and then the cassette The rotating means 82 is inserted into the opening 5 of the housing 2, and the disk 1 is placed on the rotating means 82. At the same time, the clamp arm 75 also
49 from the inclined part 49b of the guide groove 49 of the cam 48
c and is further moved in the direction of arrow L, and as shown in FIG. 7, the disk 1 is rotatably held on the rotation means 82 by a clamp 72. Although not shown, the cassette housing 2 is positioned by providing a positioning hole in the cassette housing 2 and protruding a positioning post onto the base 71 that engages with the positioning hole. The housing 2 can be positioned at a predetermined position. Incidentally, when the cassette case 2 reaches a predetermined position, if a loading end detector such as a micro switch (not shown) is activated to stop the rotation of the loading motor 62, the loading operation is completed. As shown in FIG. 7, the disc 1 is rotatably held on the rotation means 82 by the clamp 72, and is ready for playing. At this time, the insertion port 80 is already closed by the opening/closing lid 63, as shown in FIG. 7, to prevent dust and the like from entering from the outside. Also, disk 1
Although another cassette case 2' is being played,
However, even if it is inserted through the insertion opening 80, it will collide with the front end 23 of the cassette cover 22 and will not be inserted into the apparatus.

When the performance of the disc 1 is finished and the disc 1 is to be taken out of the apparatus, the loading operation described above can be performed in the opposite manner, so that the explanation thereof will be omitted here.

Furthermore, during the loading operation, the cassette case 2
When the cassette case 2 is temporarily positioned in the cassette holder 13, as shown in FIG.
In order to prevent the cassette temporary fixing members 15a, 15b from escaping outward when one end of the cassette guide 22 comes into contact with the end portions 34a, 34b of the cassette guide 22, the positioning groove 3 of the cassette housing 2 is used.
a, 3b and cassette temporary fixing members 15a, 15
It never comes out of engagement with b.

Therefore, the cassette housing 2 will not be displaced from the predetermined position of the cassette holder 13 during the loading operation.

Effects of the Invention As is clear from the above description, according to the apparatus of the present invention, the cassette holder on which the cassette housing for storing the disk is placed can be moved in conjunction with the horizontal movement of the loading plate. Alternatively, since the loading drive mechanism is configured to be able to perform unloading, the loading drive mechanism can be driven in only one direction, thereby providing a simple and compact loading device. Further, loading is automatically started by simply inserting the cassette case into the device through the insertion port. As is clear from the above embodiments, the present invention includes a cassette holder for storing a cassette, a loading plate, and a first guide for guiding the movement of the cassette by inserting pins provided on both sides of the cassette holder. a loading guide having a groove and a second guide groove through which a pin provided on both sides of the loading plate is inserted and guides the movement thereof; an engaging inclined guide groove is provided, and the loading plate is connected to the second
by moving the pin of the cassette holder along the guide groove of the loading plate, the pin of the cassette holder is guided according to the shape of the first guide groove at the intersection of the first guide groove and the inclined guide groove of the loading plate; By moving the cassette between the first position where the cassette is inserted and the second position where the disk inside the cassette is played, the cassette can be moved back and forth simply by moving the loading plate back and forth. The cassette holder can be moved up and down to a predetermined position, and since the force for moving the cassette holder is concentrated on the pins on the side, unnecessary torque is not generated, so the operation is smooth. Furthermore, there is an advantage that the components can be created by simple machining of plate materials, and there is also an advantage that no special adjustment work is required during assembly.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the shutter of the cassette casing used in the present invention in a closed state, and FIG.
FIG. 3 is a perspective view showing the structure of a cassette loading device according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view showing the structure of the loading section of the same device. Figure, 5th
The figure is a cross-sectional view of the device before the cassette case is inserted, Figure 6 is a cross-sectional view when the cassette case is inserted, and Figure 7 is a cross-sectional view of the device when the disk is pressed and held by the rotating means. FIG. 8 is a cross-sectional view of the first section of the device.
FIG. 9 is a top sectional view of the device at a second position. 1...Disk, 2...Cassette housing, 3a,
3b... Positioning groove, 5... Opening, 6... Window, 8... Shutter, 9... Slide plate, 10
... Protrusion, 13 ... Cassette holder, 15a,
15b...Cassette temporary fixing member, 20a, 20
b...Protrusion, 22...Cassette cover, 26,
27, 28, 29...Cassette holding member, 35...
...Loading plate, 40a, 40b, 41
a, 41b...Guide groove, 50...Rack plate, 5
1a, 51b...Loading guide, 52a,
52b, 53a, 53b...first guide groove, 5
5a, 55b, 56a, 56b... second guide groove.

Claims (1)

[Claims] 1 A cassette holder for storing a cassette, a loading plate, a first guide groove through which a pin provided on both sides of the cassette holder is inserted and guides its movement, and a pin provided on both sides of the loading plate. a loading guide having a second guide groove through which the cassette holder is inserted and guides its movement; the loading plate is provided with an inclined guide groove in which the pin of the cassette holder engages; the second plate
by moving the pin of the cassette holder along the guide groove of the loading plate, the pin of the cassette holder is guided according to the shape of the first guide groove at the intersection of the first guide groove and the inclined guide groove of the loading plate; A cassette loading device characterized in that it moves between a first position where a cassette is inserted and a second position where a disc in the cassette is played.