JPS6074145A - Cassette loading device - Google Patents

Abstract

PURPOSE:To obtain a small-sized loading device simple in constitution by constituting the titled device so that a cassette holder for placing a cassette housing for containing a disk can be loaded or unloaded by making it interlock with the movement of only the horizontal direction of a loading plate. CONSTITUTION:A cassette holder 13 is holding at the first position where a cassette housing 2 can be inserted, and a loading plate 35 is also positioned at an inserting port 80 side in the same way. A clamp arm 7 is engaged to a cam 48 installed as one body to the loading plate 35, and placed so that a guide groove 49 provided on the cam 48 and a pin 78 are inserted and engaged so that the cassette housing 2 and a clamp 72 do not contact to each other, even if the cassette housing 2 is inserted into a cassette holder. When the pin 78 is slid to a horizontal part 49c, a disk 1 is pressed against a turning means 82 and held by the clamp 72 held so as to be freely turnable by a clamp arm 75, and the turning of the clamp arm 75 is ended.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disc recording/reproducing device for recording or reproducing information, and particularly to a cassette loading device in which a disc stored in a cassette is automatically loaded into the device body. It is related to the device.

Conventional structure and its problems Traditionally, this type of disc has been known to suffer from a decline in playback ability when touched by hand, or because it is convenient for handling and storage. A so-called video disc device in which a cassette containing a disc is inserted into a cassette 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 type and recording medium were different, there was a front loading device type of video tape recorder that automatically loaded the cassette into a predetermined position when the cassette was inserted through the insertion slot like a video tape recorder. .

However, with the former, after inserting the cassette, the empty cassette must be manually taken out of the device, and even when a disc is removed from the device, the empty cassette must be inserted again, making the operation difficult. Not only is it annoying;
A mechanism is required to automatically take out the disk into the device, and an elevating mechanism is also required to raise and lower the rotating means for rotating the disk, which makes the structure complicated and makes it difficult to simplify the device. was difficult. 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 it complicated and difficult to assemble, but the loader mechanism is not easy to adjust. Furthermore, since the loading drive mechanism is arranged on both sides of the cassette holder, it is difficult to downsize the device body to the same size as the cassette.

OBJECT OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks of the conventional technology, and is capable of automatically loading a disc into a predetermined position simply by storing a disc and inserting a cassette into the cassette slot of a recording/playback device. It is a seventh 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 has an 11 position that allows insertion of a cassette, and a 2nd position that allows a disc stored in the cassette to be played.
a loading plate that moves the cassette holder to a first position and a second position; and a loading plate that guides the cassette holder to move to the first position and the second position. A rack plate is configured with a loading guide having a first guide groove and a second guide groove for moving and guiding the loading plate in one direction, and constitutes a cassette loading device, and is provided on the loading plate by an external loading drive mechanism. When power is transmitted to the loading plate and the loading plate is moved along the second guide groove of the loading guide, the cassette holder will move, for example, when a pin arranged on the cassette holder moves through the interlocking groove formed on the loading plate. Insert the first part of the loading guide
Since the loading plate is engaged with the first guide groove I7, it follows the movement of the loading plate and moves along the first guide groove of the loading guide.

Therefore, by simply moving the loading plate in one direction, the disc can be moved to a predetermined position in the main body of the device, so we can provide a simple and easy-to-operate cassette loading device. :Ll#.

Description of examples Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 are perspective views of the disk cassette used in the present invention, FIG. 1 shows the state in which the shutter is closed before being inserted into the main body of the device, and FIG. It is a figure which shows the state in which the gloss tar is open when it is inserted. 1st
In FIG. 2, a disk 1 is rotatably housed inside a cassette housing 2 consisting of side portions 2a, 2b and end portions 2c, 2d. 3a and 3b are positioning grooves that engage with a cassette holder (described later) and a cassette temporary fixing member to position the cassette housing 2 within the cassette holder. A window 6 (dl) is opened in a part of the cassette case 2, and a part of the disk 1 is exposed to the outside as shown in FIG. An optical head (not shown) is inserted into the disc 1, and information recorded on the disc 1 is recorded or reproduced.

Also, the disc is rotating 10 times! Although not shown in the drawings, the opening 5 is provided in which a rotating means for rotating the disk 1 is inserted. 8 is a sort-shaped shutter that closes the window 6 and the opening 5, and covers the window 6 and the opening 6; 7 so as to be slidable in the direction indicated by the arrow. This shutter 8 prevents dust and the like from entering the cassette fM body 2 from the window portion 6 and the opening portion 6 . 9 is a sheet-like slide plate integrally attached to the shutter 8, and a slide groove 12a formed inside the cassette case.

12b. A protrusion 1o 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 from the long hole 4a to the outside. I'm overwhelmed with excitement. 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 a cassette holder on which the cassette case 2 is placed, and the cassette case 2 is inserted into the cassette holder. and is moved in the direction of arrow B. Therefore, when the cassette housing 2 is inserted into the cassette holder, the shutter 8 that covers the window 6 and the opening 5 is moved in the direction of the arrow C in accordance with the movement of the slide plate 9, as shown in FIG. As a result, the window portion 6 and the opening portion 5 are in an open state, 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 the elastic member 11
Since the other end is locked to a bottle (not shown) provided in the cassette housing 2, normally, as shown in FIG. The slide plate 9 is pulled in the direction of the arrow, and the window 6 and the opening are always closed by the shutter 8. Therefore, the cassette f from the cassette holder
When the body 2 is removed, the protrusion of the cassette holder and the protrusion 10 of the slide plate 9 are no longer engaged with each other, so the Kinotar 8 is automatically moved in the direction of the arrow, and the window part 6, The opening 5 is completely closed and has a width of 2 cm to prevent dust 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 the device, and FIG. 4 is an exploded perspective view showing the configuration of the loading section of the device.

In FIG. 3, reference numeral 1 is a base from which the disk loading mechanism, loading drive mechanism, etc. can be accessed, and reference numeral 79 (indicated by a dashed line) is a front surface integrally formed with the base holder 1. It is a panel. Further, the front panel 79 is provided with an insertion opening 80 through which the cassette housing 2 is inserted into the apparatus. 63 is the insertion port 80
It is an opening/closing lid that opens and closes, and has rotating pins 6 provided at both ends.
It is rotatably supported by loading guides 6j a and 61 b, which will be described later, about fulcrums 4a and 64b. Normally, the insertion port 80 is always closed by an elastic member consisting of 66 torsion coil springs to prevent dust and the like from entering the insertion port 80. 6
5 is integrally provided on the opening/closing lid 6h, and is engaged with the tilting portion 68 of the opening/closing arm 6. The opening/closing arm 67 has a rotating shaft 7Q and a sliding shaft 69, and the rotating shaft 70 engages with the hole 57 of the loading guide 51a and becomes rotatable. Loading guide 51bK (-1 offset) The slide shaft 69 has loading play 1/36
It engages with a cam 44 provided integrally with the
The operation will be explained later.

Reference numeral 13 denotes a cassette holder on which the cassette case 2 is placed, and a pair of receiving portions 20a that receive both side portions 2a and 2b of the cassette i body 2 at both ends.

20b, and is formed in a substantially U-shape. In the receiving parts 20a and 2Ob, there are protrusions 16a and 16b that engage with the protrusion 1o provided on the cassette case 2, described above.
Cassette temporary fixing members 15a and 15b are provided which engage with the positioning grooves sa and sb of the cassette housing 2 to temporarily position the cassette housing 2 within the cassette holder 13.

Said cassette temporary fixing side part 4g'15a, 15biJ
, for example, is made of an elastic member such as a plate spring, and is configured such that the cassette housing 2 can be manually inserted into and removed from the cassette holder 13. It's 21a.

Reference numeral 21b is a protruding piece formed by bending one end of each receiving part 20a, 20b, and when the cassette housing 2 is positioned in the cassette holder 13 by the cassette temporary fixing side parts l'15a, 15b, the above-mentioned It is arranged with a slight gap so as not to come into contact with the end 2c of the cassette housing 2.

The front part 14 of the cassette holder 13 is slightly inclined downward to facilitate insertion of the cassette housing 2. Reference numeral 17 denotes an opening provided corresponding to the protrusion 6 of the cassette housing 2 and the opening 5, and is formed so as not to come into contact with the rotating means, optical head, etc., which will be described later, even if they are inserted. . 18a.

19a, 18b, and 19b are respective receiving portions 20a.

The pins 42a are holes provided in each of the pins 20b.

43a, 42b, and 43b are each formed to be integrally attached. Caseno] Holder 1
Bins 42a, 43a attached to 3.

42b, 43b[, which will be described later, are engaged with respective guide grooves provided in a cassette cover, a loading grate, a loading guide, etc., thereby making the cassette holder 13 movable in the directions of arrows E and F.

Reference numeral 22 denotes a substantially U-shaped cassette cover having ends 34a and 34b formed to cover the cassette holder 13, and a via 42a of the cassette holder 13 on which the cassette 1 and the case 2 are placed. , 43a.

and guide grooves 30a, 31a, and 30b provided at the ends of 42b, 43b, and 34a, 34b.

31b are engaged with each other, so that the holder 13 can be moved freely in the direction of arrow E. Incidentally, regulating pins 32a and s2b for regulating the movement of the cassette cover 22 in the direction of arrow G are integrally provided on the ends 34a and 34b, respectively. When the cassette housing 2 is inserted into the cassette holder 13, the cassette temporarily fastens side portions 15a.

Reference numeral 15b denotes a notch portion formed so as to be freely displaceable toward the outside of the cassette holder 13. 26
．． Reference numerals 27, 28, and 29 denote a cassette holding part made of an elastic member such as a leaf spring that is integrally provided with the cassette cover 22, and presses and supports the cassette housing 2 temporarily positioned on the cassette holder 13. It is something. Reference numeral 24 is an opening for inserting a clamper, which will be described later, and 25 is an opening for rotating the clamp arm of the clamper. The front end 23 of the cassette cover 22 is bent upward as shown in FIG. 4, and the cassette casing 2 is loaded onto a disk rotating means to be described later, and becomes ready for playing. Sometimes, insertion port 8o
Even if another cassette housing 2' is inserted, it will come into contact with the front end 23 of the cassette cover 22 and will not be inserted into the apparatus.

36 moves the cassette holder 13 in the directions of arrows E and F, and moves the cassette cover 22 in the direction of arrow G.
Interlocking grooves 40a, 41a and 4 for moving in the direction
It is an inverted U-shaped loading plate consisting of side portions 36a and 36b having side portions 36a and 36b with ob and 41b.
6 is provided with an arrow pointing upward 39b. Incidentally, the interlocking groove 40a.

41C1, 40b, and 41b are piers 42a, 43a, and 42b provided in the cassette holder 13;

43b are formed to be slidable, and as shown in FIG. ', 40a'' and 40b'.

40 b'' ---. 37 is an opening for inserting a rotating means and an optical head, etc., which will be described later. It is formed so as not to come into contact with the rotating means, optical head, etc. -2, "coating grade 3".
On the bottom of 5, there is a loading mokuro 2 attached to the base 1, a worm wheel 61a, and a worm wheel 6.
1b1 Gears 61C 261d, 61c, and 61f engage with the loading mechanism 60 to move the loading plates 1 and 35 in the upward direction of the arrow, and the rack plate 50 engages with the slide shaft θ9 of the aforementioned opening/closing arm θ7. Shi-
r mh "Up l'!!Il rB? -/,
A 7 Ii'Tl mb-su k i) / 7) 400: L * l + 45. A cam 44 having a linear portion 46 engages with a clamp arm to be described later to rotate the clamp arm. Horizontal part 49a and inclined part 49b of the moving basin
, and a horizontal portion 49C.
8 are each integrally attached.

51 a and 51 b are the loading plates 3;
This is a loading guide that is disposed outside of the cassette holder 13, the cassette cover 22, the loading plates 1 and 35, and so on.

Since the loading guides 51a and 51b are symmetrical, only the loading guide 51b will be described here. 68b is the rotating bottle 6 of the opening/closing lid 63.
4b and rotatably support the opening/closing lid 63, and 62b and s3b are holes 42b and 43b, respectively.
The cassette holder 13 is engaged with the bins of center marks E and F.
This is a dogleg-shaped first guide groove that guides in the direction. s4
b is a third guide groove that engages with the regulation pin 32b of the horn set cover 22 and guides the cassette cover 22 in the direction of arrow G. 56b and seb engage with the bins 38b and 39b of the loading plate 35 and guide the loading plate 35 in the direction of arrow H.
57 is a rotation shaft 70 of the opening/closing arm 67.
This is a hole that engages with and rotatably supports the opening/closing art 67.

In addition, 72 is housed in the cassette housing 2, and the saw disc 1
This is a clamp that is held under pressure by 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 (HJ).

Reference numeral 83 denotes a hole that engages with the shaft 73, and is formed so that even when the clamp 72 presses and holds the disk 1 against the rotating means and rotates, it does not come into contact with the shaft γ3. The clamp arm 75 l-, J, although not shown, the pier 77
It is rotatably disposed on the base light 71 with the a and 7 ends as a pivot, and is rotated by engaging with the aforementioned cam 48 to actuate the clamp 72 and hold the disc 1 under pressure. is configured to do so.

Side portion 76b of the clamp arm 76 [younger sister, the cam 4
A pin 78 (see FIG. 5) that engages with the guide groove 49 of No. 8 is provided.

Next, the low blowfish operation of the present invention will be explained with reference to FIGS. 6 to 9.

FIGS. 5 to 7 are cross-sectional views of the device, FIG. 5 is a cross-sectional view before inserting the cassette case, and FIG. 6 is a cross-sectional view after inserting the cassette case. , and FIG. 7 respectively show cross-sectional views when the disk is held compressed by the rotating means. Also, Figure 8.

FIG. 9 is a two-sided cross-sectional view showing the loading state of the cassette case, FIG. 8 is a top cross-sectional view of the device in the first position, and FIG. FIG. 4 is a top sectional view in a second position where the instrument can be played.

In FIG. 5, the cassette holder 13 is waiting at a first position where the cassette housing 2 can be inserted, and the loading grate 35 is also located on the side of the insertion f 80. Here, the opening/closing arm 6 is attached to the slide shaft 69.
is held in contact with the loading portion 47, and at this time, the opening/closing lid 63 is pushed by the urging force of the elastic member 66.
The bin 65 of the opening/closing lid 63 and the tilted portion 68 of the opening/closing arm 6 are arranged to be in contact with each other or to be slightly spaced apart from each other so that the insertion point 8 degrees is completely closed. .

Therefore, the insertion port 8o is always closed by the opening/closing lid 63, and dust and the like from the outside are prevented from entering. The opening/closing lid 63 is rotatable in the direction of the arrow, and against the biasing force of the elastic portion,
The cassette housing 2 can be inserted through the insertion opening 80. On the other hand, even if the cassette housing 2 is inserted into the cassette holder 13 by engaging with the cam 48 integrated with the clamp arm 7tsri and the loading plate 35, the cassette housing 2 and the clamp 72 are A guide groove 49 provided in the cam 48 so that the cam 48 does not come into contact with the guide groove 49
The guide groove 49 of the disposed cam 48 is formed downwardly from the horizontal portion 49a of the cam 49 so that the pin 8 provided on the side portion 7eb of the clamp arm 76 is inserted and engaged with the horizontal portion 49a. The inclined tilting portion 49b and the tilting body portion 49b
It consists of a horizontal part 49C continuous to the end of the
The pin 78 provided on the clamp arm 75 is normally locked in the horizontal portion 49a of the guide groove 49, as shown in FIG. In addition, when the loading play 1/36 is moved in the direction of the arrow, the pin 78 is connected to the cam 48.
Since it is also moved in the direction of the arrow, it slides on the horizontal portion 49a of the guide groove 49, and then begins to slide on the inclined portion 49b. At the same time, since the inclined portion 49b is inclined downwardly than the horizontal portion 49a, the clamp arm 76 is
Pin 77a.

It begins to rotate in the direction indicated by the arrow with γ7b as the pivot, and the pin 78 slides on the inclined portion 49b and rotates until it reaches the horizontal portion 49c. When the pin 78 is slid onto the horizontal portion 49C, the clamp 72 rotatably held by the clamp arm 75 presses and holds the disk 1 against the rotating means 82, as shown in FIG. , the rotation of the clamp arm 76 is completed. Incidentally, since the pin 78 is locked to the horizontal portion 49c of the guide groove 49, the clamped state described in "2" is maintained.

Conversely, when the cam 48 is moved in the direction of the arrow ' from the clamped state, the pin 78 of the clamp arm 75
slides on the horizontal portion 49C of the guide groove 49 of the cam 48,
In order to slide on the horizontal part of 49a through the inclined part 49b,
Since the clamp arm 75 is reversed in the direction of arrow L', the clanger 2 is separated from the disk 1 and the fifth
As shown in the figure, the cassette housing 2 is rotated so that it comes into contact with the clanger 2 and can be removed with a large movement.

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 housing 2 is inserted into the apparatus through the insertion opening 80 with the end 2C of the cassette housing 2 facing forward, as shown in FIG.
When the cassette casing 2 begins to rotate in the downward direction of the arrow and is further inserted in the direction of the arrow X against the force of the elastic member 66 of the opening/closing lid 63, the end 2c of the cassette casing 2 , slide the front part of the cassette holder 13 and start sliding inside the cassette holder 13. At the same time, the cassette temporary fixing members 15a and 15b provided on the receiving parts 20a and 20b of the cassette holder 13 are attached to the side part 2a of the cassette housing 2.
, 2b, and then the cassette holding members 26, 27 of the cassette cover 22. As the cassette housing 2 is further inserted, the elongated holes 4a of the sides 2a and 26 of the cassette housing 2.

A receiving portion 20a of the cassette holder 22 is located within the cassette holder 4b.

The protrusions 16a and 16b of the slide plate 20b are inserted, and the protrusion 10 of the slide plate 9 disposed in the elongated hole 4a comes into contact with the protrusion 16a. 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 into the case. body 2
It begins to move in the direction of arrow B as shown in FIG. 1 along the slide grooves 12a and 12b formed inside. As a result, the ivy 8 also begins to move in the direction of arrow C, so that the opening 5
One end of the window 6 is exposed, and then one end of the window 6 begins to be exposed.

When the insertion of the cassette case 2 continues, the shutter 8 moves in conjunction with the insertion of the cassette case 2, and the window part 6 is first completely opened by the shutter 8, and then the opening part 5 is opened. is completely opened from 7ya sotar 8. At the same time,
Cassette temporary fixing members j6a, 15b and positioning grooves 3a provided in side parts 2a, 2b of cassette housing 2.

3b are engaged with each other, and the cassette housing 2 is temporarily positioned within the cassette holder 13. As shown in FIG. Manually remove the cassette case 2
Insertion is completed. This position is the first position mentioned above, and not only makes it possible to insert the cassette 9-2, but also
This is also the position when the cassette housing 2 is manually removed from the apparatus.

At this time, the cassette casing 2 is attached to the elastic portion 11 by 1°h/
x-T:n Y'i f,, -+ tn M Donishi 1+Z Vine' Iffiz, lti l Il8 people-/
l: Air cassette temporary fixing state capital 115a, 15
b and the urging force of the cassette holding members 26, 2, and 28, 29 are larger, so that the cassette housing 2 is able to hold the cassette temporarily in the state capital 141 in the cassette holder 13.
5a, 15b and cassette presser system 26°2 completed, 28.
29, it is pressed and held and placed.

In this state, when the cassette housing 2 is further manually pushed slightly in the direction of arrow Activate the loading mechanism 60. When the loading motor 62 of the loading mechanism 60 starts rotating, the rotation of the loading motor 62 is controlled by a worm gear 61b via a worm gear 61a integrally attached to the loading motor 62.
is transmitted to the worm wheel, and further 61 by gear 61c.
It is transmitted to gear d, and then to gear 61f via gear 61e. Further, the gear 61f meshes with the rack plate 60 disposed on the bottom surface of the loading plate 35,
The driving force of the loading motor 62 is transmitted to the loading plate 35.

Therefore, when the loading motor 62 begins to rotate in a predetermined direction, the loading plate 36 begins to move in the direction of the arrow, and in conjunction with the movement of the loading plate 35, the case body 2 is placed. The cassette holder 13 that has been moved begins to move in the direction of the arrow as well. The slide shaft 69 of the opening/closing arm 67 still begins to slide on the inclined portion 47 of the cam 44 due to the movement of the loading plate 35, so the opening/closing arm 67 begins to rotate in the direction of the arrow ○, and the pin of the clamp arm 75 78 also cam 4
8 begins to slide through the guide groove 49. When the slide 9 of the opening/closing arm 6 passes through the LR oblique part 4 of the cam 44 and slides onto the straight part 46, the inclined part 68 of the opening/closing arm 67 touches the pin 65 of the opening/closing lid 63. When in contact with each other, the opening/closing lid 63 moves in the direction of the arrow ■' due to the force of the elastic part 660.
Prevent rotation in the direction. While the slide shaft 69 of the opening/closing arm 67 is sliding on the straight portion 46 of the cam 44, the opening/closing lid 63 is moved along the opening/closing arm 67 as shown in FIG.
The insertion port 80 is opened by being supported by the inclined portion 68 of the insertion port 68 .

On the other hand, the clamp arm 75 also has the clamp arm γ5.
The pin 78 is connected to the horizontal portion 49a of the guide groove 49 of the cam 48.
While the cassette cover 22 is being slid, the clamp 2 is supported with a part of it inserted into the opening 24 of the cassette cover 22, as shown in FIGS. 5 and 6.

Furthermore, when the loading rod (l/-) 35 is moved in the direction of the arrow, the operation of the receiving part 20b of the cassette holder 13 (here, the operation of the receiving part 20a on the opposite side is the same as that of the receiving part 20b, and will be explained more clearly). (omitted) pin 42 provided in
b and 43b are the first guide grooves 52b of the loading guide 51b, respectively.

53b, the moving direction is changed from the arrow direction to the arrow P direction. When the force center holder 13 starts to move in the direction of the arrow P, the cassette cover 22 also moves in the direction of the arrow P because the pins 42b and 43b are inserted into the guide grooves 3ob and s1b of the cassette cover 22, respectively. Start moving in direction P.

At this time, the opening/closing arm 67 has begun to slide on the inclined portion 45 of the cam 44, and is rotated in the direction of the arrow α.

When the opening/closing arm 67 is rotated, the opening/closing lid 63 also moves in the direction of arrow I' force [!] due to the old force of the elastic portion @66. , begins to move. On the other hand, the clamp arm Y6 begins to rotate in the direction indicated by the arrow as soon as the pin 78 begins to slide on the sloped portions of the groove portions 49a to 49b of the guide groove 49 of the cam 48. Note that the opening 5 and the window 6 of the cassette housing 2 are in a completely open state, and the optical head and the rotating means or
The clamp 72 and the like are ready for insertion.

As the cassette holder 13 on which the cassette case 2 is mounted 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 (711). The rotating means 82 is inserted into the opening 6 of the cassette housing 2, and the disc 1 is
It is placed on the rotation means 82 , , i-. At the same time,
The clamps 72 and 75 are also slid from the inclined part 49b of the guide groove 49 of the cam 48 to the horizontal part of the guide groove 49c and further moved in the direction of the arrow, and as shown in FIG.
is held in a clamp 72 on the rotation means 82 so as to be rotatable. Although not shown, the positioning of the cassette housing 2 is performed by providing a positioning hole in the cassette housing 2 and protruding a positioning post on 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 is activated to stop the rotation of the loading motor 62 (not shown), the loading operation is completed. As shown in FIG. 7, the disc 1 is held on the rotating means 82 so as to be rotatable up to the clamp 72, and is ready to be played. 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,
Even if another cassette housing 2' is inserted through the insertion slot 8o while the disc 1 is being played, it will collide with the front end 23 of the cassette cover 22 and will not be inserted into the device. It is composed of

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

Note that when the cassette case 2 is temporarily positioned in the cassette holder 13 during the loading operation, even if the cassette case 2 tries to move in some way, as shown in FIG. One end of the cassette temporary fixing side opening 158° 15b provided on the cassette boulder 13 is the end 34a of the cassette guide 22.

34b and the side part of the cassette is temporarily fixed.
In order to restrict outward escape of the cassettes 6a and 15b, the positioning grooves 3a and 3b of the cassette housing 2 and the cassette temporary fixing state capitals l'15a and 15b never come out of engagement.

Therefore, the cassette housing 2 does not shift from the predetermined position I6 of the cassette holder 13 during the loading operation.

Effects of the Invention As is clear from the second explanation, the apparatus of the present invention has advantages.
In this case, the cassette holder on which the cassette housing containing the disc is placed can be loaded or unloaded in conjunction with the horizontal movement of the loading plate, so that the loading drive mechanism can be moved in only one direction. Since the loading device can be driven by only one person, the configuration is simple and a compact loading device can be provided.

Simply inserting the cassette case into the device through the insertion slot automatically starts loading, making the operation extremely simple and providing stable loading operation.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the shutter of the cassette casing used in the present invention in a closed state, FIG. 2 is a perspective view showing the state in which the shutter is open, and FIG. FIG. 4 is an exploded perspective view showing the configuration of the loading section of the device; FIG. 4 is an exploded perspective view showing the configuration of the loading section of the device; FIG. 7 is a cross-sectional view when the disk is pressed and held by the rotating means, FIG. 8 is a top sectional view of the device in the first position, and FIG. It is a top sectional view of the device in the second position. 1...disc, 2...cassette housing, 3
a. 3b... Positioning groove, 5... Opening, 6...
Window section, 8.../Yanotar, 9-...Sliding board, 1
0... protrusion, 13... skein 7) holder, 15a
. 15b...Cassette temporary fixing member, 20a, 2
0b...Protrusion, 22...Cassette cover,
26゜27.28.29 ...Cassette presser month, 3
6. Loading plate, 40a, 40b
, 41a. 41b...Interlocking groove, 50-.Rack plate, 51a. 6+ boding guide, 52a, 62b. 53a, 53b - 1st chisel, 55a. s5b, 56a, rseb---second guide groove. Name of agent: Patent attorney Toshio Nakao and one other person
1 [E1 Figure 3

Claims (1)

[Claims] The cassette holder is movable between a first position where a cassette can be inserted and a second position where a disc stored in the cassette can be played. a loading plate that moves the cassette holder to a first position and a second position, a first guide groove that guides the cassette holder to a first position and a second position, and a second guide groove that guides the loading plate in one direction. The loading plate is connected to the rope and the second guide.
By moving the cassette holder along the first guide groove, the cassette holder is moved along the first guide groove, and the disk stored in the cassette holder is automatically loaded into a predetermined position in the main body of the apparatus. A cassette loading device characterized by comprising: