JPH0321978B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disk cassette insertion device used, for example, in a video floppy drive device for recording and reproducing video signals on a rotating magnetic sheet.

2. Description of the Related Art A disk cassette used in a video floppy drive has a configuration shown in FIGS. 8 and 9. 101 is a magnetic sheet, 102 is a center core provided at the center of the magnetic sheet 101, and a hole 10 that engages with the spindle on the device main body side.
It has 2a. 103 is a disk cassette housing, which has positioning holes 103a and 103b.
and a hole 103c for inserting the magnetic head provided on the device main body side and for inserting a pad used for contacting and stabilizing the magnetic head and the magnetic sheet 101 from the side opposite to the magnetic head insertion side.
have. A dustproof shutter 104 covers the magnetic head and pad insertion hole 103c when the disk cassette is not in use, and when inserted into the device for recording or reproduction, the dustproof shutter 104 is moved in the direction of the arrow 107. Slide to open hole 103c. 104b indicates arrow 10 when closing the opened dustproof shutter again.
104a is a hook formed integrally with the dustproof shutter 104, and an elastic body 105 whose one end 108 is fixed to the disk cassette housing 103.
This prevents the dust-proof shutter 104 from opening unnecessarily when it is closed. When it is desired to open the dustproof shutter 104, it is sufficient to slide the dustproof shutter 104 in the direction of arrow 107 while pushing the elastic body 105 in the direction of arrow 106. Conversely, when closing the dustproof shutter 104 that is open, it is sufficient to simply slide the dustproof shutter 104 in the direction opposite to the arrow 107, and the inclined surface 104c of the hook 104a
05, it is not necessary to push the elastic body 105 in the direction of the arrow 106 as when opening. Reference numeral 109 denotes a counter, which rotates while being engaged with a driving means on the side of the main body of the apparatus, and displays the number of tracks recorded on the magnetic sheet 101.

A disk cassette insertion device for a video floppy drive using the above-mentioned disk cassette is disclosed in, for example, Japanese Patent Laid-Open No. 57-208672. FIG. 10 shows a perspective view of the main parts of this conventional disk cassette insertion device, and is 110
111 is a spindle that engages with the center core 102 of the magnetic sheet to rotate the magnetic sheet; 112 is a magnetic head;
A case cover 113 is held rotatably about a hinge shaft 116, and is urged by a spring 117 in a direction away from the substrate 110. 1
Reference numeral 14 denotes a disk cassette holder, which is U-shaped and accommodates a disk cassette, and is rotatably held around a hinge shaft 116.
115 is a convex portion provided on the disk cassette holder 114, which allows the dustproof shutter 104 to slide when the disk cassette is inserted into the disk cassette holder 115 as shown by the arrow. There is a hole 11 on the front side of the case cover 113.
3a is provided, and when the case cover 113 is folded down to the board 110 side, the hook 118 is attached to the hole 113.
a to prevent the case cover 113 from separating from the board 110 due to the urging force of the spring 117. Also, the disk cassette holder 114
Since the front end 114a of the disk cassette holder 114 is pressed against the lower end of the front side of the case cover 113, the disk cassette holder 114 can be opened by folding down the case cover 113.
When the case cover 113 is further fixed by the hook 118, the disk cassette holder 114 is also fixed, and the disk cassette inserted therein is also fixed. At this time, the spindle 111 engages with the hole 102a of the center core 102 of the disk cassette, and the magnetic head 112 passes through the hole 103a of the disk cassette housing 103 and inserts the magnetic sheet 1.
A pad 119 provided on the case cover 113 also contacts the disk cassette housing 103.
is inserted into the hole 103a. Insert in this state 11
1 rotates, the magnetic sheet 101 rotates and is pressed against the magnetic head 112 by the pad 119, so the magnetic sheet 101 can maintain stable contact with the magnetic head 112, making it possible to record and reproduce signals. Become.

Problems to be Solved by the Invention However, although the above configuration is good for a portable type, if it is a stationary type, the disk cassette insertion part will be raised upwards, making it difficult to place objects on top of the housing. However, it also has the problem that it is not suitable for storage in a rack or the like. Furthermore, the operation of inserting the disk cassette is troublesome as it requires two operations: first inserting the disk cassette into the disk cassette holder and then folding down the case cover to close it.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a disk cassette insertion device that does not have any movable parts on the top surface of the device and allows a disk cassette to be installed by simply inserting the disk cassette into an insertion hole on the front surface. do.

Means for Solving the Problems The present invention has a fixing plate fixed to the device main body side, and a supporting shaft A that engages with a slit A provided in the fixing plate in a first direction parallel to the magnetic sheet surface. A sliding body held so as to be slidable in a first direction, a driving means for sliding the sliding body, and a disk cassette for storing and approximately positioning the disc cassette and provided in an L-shape on the fixed plate. By having a support shaft B that engages with the slit B, the first direction and the first
a frame body slidably held in a second direction perpendicular to the direction of the magnetic head; and a pad that stabilizes contact between the magnetic sheet and the magnetic head when recording or reproducing signals on the magnetic sheet with the magnetic head. and upper and lower bodies that are slidable in the second direction by having a support shaft C that engages with a slit C provided in the fixed plate in the second direction, and the sliding body further includes a frame body. A slit D having an inclined portion that engages with a support shaft B provided and has a head in the second direction, and a slit D that engages with a support shaft C provided on the upper and lower bodies and has a head in the second direction. This is a disk cassette insertion device provided with a slit E having an inclined portion.

Effects According to the present invention, with the above-described configuration, when the sliding body is slid by the driving means with the disk cassette inserted into the frame, the frame first moves through the slit D through the support shaft B. The frame body is then moved in the second direction by the amount of the head of the slit D and comes to rest, fixing the disk cassette at a predetermined position. At the same time, due to the slide of the sliding body, the upper and lower bodies are moved in the second direction by the slit E via the support shaft C by the amount of the head of the slit E and come to rest, and the pads provided on the upper and lower bodies are moved. Insert into the hole in the disk cassette. Next, when you want to take out the disk cassette, use the drive means to slide the sliding body in the opposite direction to the above, the upper and lower bodies will move in the opposite direction, and the pad will move away from the disk cassette, and the frame will also move in the opposite direction. Move the disk cassette to a position where it can be removed.

Embodiment FIG. 1 is a perspective view of a main part of a disk cassette insertion device according to an embodiment of the present invention. 1 is a board provided on the main body side of the device; 2, 3, and 4 are provided on the board 1 for positioning holes 103a, 1 for the disk cassette.
A positioning pin 03b is engaged to position the disk cassette; 5 is a spindle provided on the substrate 1 and engaged with the center core 102 of the disk cassette to rotate the magnetic sheet 101; 6 is in contact with the magnetic sheet 101 to generate a signal. The magnetic head 32 is fixed to the substrate 1 as a pair of left and right, and has a horizontal slit A33, an L-shaped slit B34, and a vertical slit C35. It is fixed by a screw 76 into a screw hole 1a provided in the. Reference numeral 26 denotes a sliding body which has a slit D31 and a slit E30 on its side surface, and a support shaft A29, which is held slidably in the directions of arrows A and B by engaging with the slit A33 of the fixed plate 32. ing. The tip of the support shaft A29 is a screw, and after passing through the slit A33 of the fixing plate 32, the cam 43 is fixed to one side (the right side in FIG. 1) by a nut 44 through the mounting hole 43a, and the other side ( (Left side in Figure 1)
The rack 41 is attached to the nut 4 through the mounting hole 41a.
It is fixed by 2. Also, by engaging a support shaft D27 provided on the upper surface of the sliding body 26 with a slit 36a of the top plate 36, which will be described later, play in the direction perpendicular to the sliding direction (arrows A and B) of the sliding body 26 is restricted. There is. Further, a pin 28 is provided on the upper surface of the sliding body 26. Reference numeral 18 denotes an upper and lower body, which has support shafts C19a, 19b and a slit F18a on the side surfaces.The support shafts C19a, 19b engage with the slit E30 of the sliding body 26, and one support shaft C19b
is movable in the vertical direction by engaging with the slit C35 of the fixed plate 32 at the same time.
A disk cassette pressing spring A20 is provided on the upper surface of the upper and lower bodies 18, and support shafts 22, 23, 2 are provided.
4 are provided. This support shaft 22, 23, 24
The leaf spring 25 is held by the leaf spring 25.
A pad 21 is fixed to the. That is, the pad 21 is held in a vertically depressed state by the leaf spring 25 from the upper and lower bodies 18. 1
3 is a frame body having a hole 13a into which the pad 21 is inserted, L-shaped parts 13c and 13d for supporting the disk cassette, and a contact surface 13b when the disk cassette is inserted; Further, a disk cassette pressing spring 14 is provided, and a support shaft B17 is provided on the side surface. The body B is ready to move along the slit B34. Also frame 1
3 is provided with support shafts 15 and 16. 8 is a shutter opening/closing metal fitting with slits 8a and 8b.
The slit 8a engages with the support shaft 15 of the frame, and the slit 8b engages with the support shaft 16. Further, the shutter opening/closing fitting 8 is provided with a support shaft 9, and the support shaft 9 engages with a slit 18a of the upper and lower bodies 18.
Further, the shutter opening/closing fitting 8 has a convex portion 8c for opening the shutter, and has support shafts 10 and 11 to slidably hold the shutter closing plate 9 and biasing the shutter closing plate 9 in one direction with a spring 12. ing. Reference numeral 7 denotes a pad height determining pin provided on the board 1, which comes into contact with the pad 21 to determine the height of the pad 21 when the upper and lower bodies 18 are lowered. Reference numerals 45, 46, and 47 designate microswitches, which are fixed to screw holes 32b provided in the fixing plate 32 with screws 48. Reference numeral 49 is an insertion window, and an insertion hole 49 into which a disk cassette is inserted.
a, and is fixed to a screw hole 32c provided in the fixing plate 32 with a screw 50 through a mounting hole 49b. Reference numeral 36 denotes a top plate, which has a slit 36a that engages with the support shaft D27 of the sliding body 26, and also has a support shaft 3.
8 and 39, the slide plate 37 is slidably held and biased in one direction by a spring 40.
The top plate 36 is fixed to a screw hole 32b of the fixed plate 32 with a screw 51 through a mounting hole 36b. A driving means for driving the rack 41 is arranged in the C section. FIG. 2 shows the driving means viewed from the direction of arrow D in FIG. Next, the driving means will be explained based on FIG. A guide plate 52 is fixed to the rack 41 with screws 53 through an elongated hole 52a. Further, a tension spring 54 is provided between the rack 41 and the fixed plate 32, so that the rack 41 is biased in one direction. Reference numeral 55 denotes a drive unit board, which is fixed to the fixed plate 32 with screws 75. 56
is a stopper, which is fixed to the drive unit board 55 with screws 57. A partial gear 60 has no teeth and is rotatably held on a support shaft 59 provided on the drive unit base plate 55, and has a pin 58. A gear 63 meshes with the partial gear 60 and is rotatably held on the support shaft 61 integrally with the gear 62. 65 is a gear and gear 6
2 and has a pin 68, and the gear 66 similarly has a pin 69, both of which are connected to the support shaft 64.
The pins 68, 6 are rotatably held in the
9 via a transmission spring 67. 7
A gear 1 meshes with the gear 66 and is rotatably held on a support shaft 70 integrally with a worm wheel 72. A worm 73 is fixed to the shaft of the motor 74.

The operation of the disk cassette insertion device of this embodiment constructed as described above will be explained below.

In the initial state before the disk cassette is inserted, the positional relationship among the sliding body 26, the frame body 13, and the fixing plate 32 is as shown in FIG. FIG. 3 shows FIG. 1 as seen from the direction of arrow E, and shows the cam 43, micro switch 45,
46 and 47 are deleted. Now, when the disk cassette is inserted into the insertion hole 49a of the disk cassette insertion window 49, the disk cassette is guided by the L-shaped portions 13c and 13d of the frame 13 and enters the frame 13. During this process, the side surface of the disk cassette hits the shutter closing plate 9, but since the shutter closing plate 9 easily moves clockwise around the spindle 10 and escapes, the disk cassette continues to be inserted. Next, the side surface of the disk cassette hits the convex part 8c of the shutter opening/closing fitting 8, and this convex part 8c touches the elastic body 1 shown in FIG.
05 in the direction of the arrow 106, and as the disk cassette is further inserted, the convex portion 8c hits the end of the dust-proof shutter 104, and as the disk cassette is further inserted, the dust-proof shutter 104 is opened. To go. As the disk cassette is further inserted, the leading end of the disk cassette comes into contact with the contact surface 13b of the frame 13. At this point, the rear end of the disk cassette is still slightly protruding from the insertion window 49 (the rear of the disk cassette can be grasped). As the disk cassette is further inserted, the frame 13 is pushed by the disk cassette, but as described above, the frame 13 engages with the L-shaped slit B34 of the fixing plate 32 via the support shaft B17. The spindle B17 is now movably held in an L-shape through the slit B34.
Since the position where it engages is at the end 34a of the horizontal part, the frame body is pushed by the disk cassette and moves in the direction of arrow A.
move in the direction. Here, the support shaft B17 of the frame 13 is also engaged with the slit D31 of the sliding body 26, and the position where the support shaft B17 is currently engaged with the slit D31 is the position 31a shown in FIG. Frame body 13
By being pushed and moved in the direction of arrow A, the sliding body 26 also moves in the horizontal direction. Here, a pin 28 is provided on the upper surface of the sliding body 26, and this pin 28 is now provided.
The positional relationship between the slide plate 37 provided on the top plate 36 and the pin 28 is as shown in FIG. In order for the moving body 26 to move further, the slide plate 3 must overcome the biasing force of the spring 40.
7 must be moved in the direction of arrow B. That is, the load at this time prevents the frame 13 from moving due to prying or the like before the tip of the disk cassette comes into contact with the contact surface 13b of the frame 13. The disk cassette is attached to the spring 40.
When the pin 28 of the push-sliding body 26 comes to the position shown in FIG. 7 against the urging force of , the slide plate 37 separates from the pin 28 and the load disappears. In addition, the slit E30 of the sliding body 26 includes the support shaft C19a of the upper and lower bodies 18,
19b is engaged, but one of the support shafts C19b is simultaneously engaged with the slit C35 of the fixing plate 32. As mentioned above, the upper and lower bodies 18 are movable only in the vertical direction; The engagement position of the support shaft C35 with the slit E30 of the moving body 26 is the horizontal part 30a, and if the sliding body 26 moves only a little in the direction of arrow A, the engagement position of the support shaft C35 with the slit E30 is the horizontal part of the slit E30. To continue, the upper and lower bodies 18 remain stationary. In addition, the shutter opening/closing fitting 8 is attached to the frame 13 with support shafts 15 and 1.
At the same time, the shaft 9 is engaged with the upper and lower bodies 18a, so even if the frame 13 is pushed and moved by pushing in the disk cassette, the shutter opening/closing fitting 8 remains stationary. As it is, the convex part 8c further protects the dustproof shutter 1.
04 will be opened. As the disk cassette is pushed in in this way, when the rear end of the disk cassette is at almost the same position as the surface of the insertion window 49, one end of the cam 43 attached to the support shaft A29 of the sliding body 26 (not shown) Push the lever of the micro switch 46 fixed to the fixed plate 32,
The contacts of the micro switch 46 are switched. This signal energizes the motor 74 to rotate it. The rotation of this motor 74 is caused by the worm 7
3. Worm wheel 72, gear 71, gear 6
6. Transmitted to gear 65, gear 62, and gear 63 to rotate partial gear 60 counterclockwise. As the partial gear 60 rotates counterclockwise, the pin 5
8 comes into contact with the end surface 52b of the guide plate 52, and the guide plate 52
By pressing , the rack 41 and the sliding body 26 to which the rack 41 is attached are moved in the direction of arrow A. Then, when the partial gear 60 has moved a predetermined amount, the teeth of the partial gear 60 mesh with the teeth of the rack 41, and this time the partial gear 6
The rack 41 is moved by the tooth 0, and the slider 2
6 will also move further. The sliding body 26 is indicated by arrow A.
When the frame body 13 moves in the direction, the support shaft B17 of the frame body 13 moves toward the sliding body 2
It is pushed by the inclined part 31c of the slit D31 of No. 6 and moves horizontally (in the direction of arrow A) along the slit B34 of the fixing plate 32, and then descends in the vertical direction. on the other hand,
The upper and lower bodies 18 are sliding bodies 26 of support shafts C19a and 19b.
When the engagement position with the slit E30 passes the horizontal portion 31c, it is pushed by the inclined portion 30b of the slit E30 and descends in the vertical direction. Here, as shown in FIG. 5, the vertical step a of the slit E30 is the slit D3.
The slit E30 has a horizontal part 31c at the upper end, and the slit D31 has a horizontal part 31b at the lower end. In this state, the engagement position of the support shafts C19a, 19b of the upper and lower bodies 18 with the slits E30 is in the horizontal portion 30c, so the frame 13 is only moved in the horizontal direction, and the upper and lower bodies 1
8 is stationary. Then, at approximately the same time that the sliding body 26 moves further and the frame body 13 starts to descend, the support shafts C19a and 19b of the upper and lower bodies 18 are moved to the slit E3.
0, and the upper and lower bodies 18 also begin to descend. Here, since the slopes of the sloped part 30b of the slit E30 and the sloped part 31c of the slit D31 are made to be approximately the same, the relative distance in the vertical direction between the frame body 13 and the upper and lower bodies 18 hardly changes. Furthermore, sliding body 2
6 moves, the slit D3 of the support shaft B17 of the frame body 13
1 reaches the horizontal part 31b, the frame 13 finishes its descent, and the disk cassette inside the frame 13 engages with the positioning pins 2, 3, 4 on the board 1 and is held in a predetermined position, and the center core 102 is engaged with the spindle 5 on the substrate 1, and the magnetic head 6 is inserted into the hole 103c. On the other hand, since the upper and lower bodies 18 continue to descend even after the frame 13 comes to rest, the pad 21 attached to the upper and lower bodies 18 passes through the hole 13a of the frame 13 and is inserted into the hole 103c of the disk cassette. Since the pad 21 is inserted after the disk cassette is completely installed in the predetermined position, it will not come into unreasonable contact with the magnetic sheet in the process. Since this pad 21 is only elastically held by the leaf spring 25 as described above, when the pad 21 is inserted a predetermined amount into the hole 103c of the disk cassette, the pad height determining pin provided on the board 1 is inserted. 7 and is held in place. Then, when the sliding body 26 has moved a predetermined amount, one end of the cam 43 (not shown) attached to the sliding body 26 pushes the lever of the micro switch 47 fixed to the fixed plate 32, and the contact point of the micro switch 47 is switched. . When the power to the motor 74 is cut off by this signal, the motor 74 still tries to rotate due to inertia, and the sliding body 26 is moved to the support shaft A2 as shown in FIG.
9 hits one end of the slit A33 of the fixed plate 32, and the motor 74 comes to a standstill. After that, the force that causes the motor 74 to rotate is absorbed by the transmission spring 67, which is mediated by the connection between the gears 65 and 66 in the transmission means. This means that the sliding body 2
6 in this final position, and
This also means that it is not necessary to precisely adjust the position at which the contact point of the micro switch 47 switches. In this state, the insertion of the disk cassette is completely completed, and by rotating the spindle 5 to rotate the magnetic sheet 101 and moving the magnetic head 6 to the desired position, recording or reproduction of signals is possible. .

Next time, when you want to take out the disk cassette, you can rotate the motor 74 in the opposite direction to the previous time to remove the worm 73, worm wheel 72,
The transmission is transmitted to the gears 71, 65, 62, and 63 to rotate the partial gear 60 clockwise and further move the rack 41 in the opposite direction to arrow A. It will move in the opposite direction. As a result, the frame body 13 and the upper and lower bodies 18 move in a completely opposite manner to the previous movement. That is, first, the upper and lower bodies 18 begin to rise, and the pads 21 attached to the upper and lower bodies 18
is removed from the hole 103c of the disk cassette.
Since this detachment of the pad 21 is performed while the disk cassette is fixed at a predetermined position, there is no forcible contact with the magnetic sheet in the process. Next, the frame 13 begins to rise together with the upper and lower bodies 18, and the disk cassette inside also rises. Then, the upper and lower bodies 18 and the frame body 13 finish rising almost simultaneously,
Only the frame 13 moves horizontally in the direction opposite to the arrow A, but when it moves horizontally by a predetermined amount, the teeth of the partial gear 60 and the rack 41 disengage. Thereafter, the sliding body 26 will be moved in the direction opposite to the arrow A by the elastic force of the tension spring 54. Then, when the sliding body 26 has further moved by a predetermined amount, one end of the cam 43 (not shown) attached to the sliding body 26 presses the lever of the micro switch 45 to switch the contacts, and this signal causes the motor 74 to be energized. cut. Motor 7 as before
4 tries to continue rotating due to inertia, and the partial gear 60 stops when the pin 58 hits the stopper 56. From then on, the force that causes the motor 74 to rotate is absorbed by the transmission spring 67, and the micro switch 45 There is no need to precisely adjust the switching position. On the other hand, as shown in FIG. 3, the sliding body 26 comes to rest as the support shaft A29 comes into contact with one end of the slit A33 of the fixed plate 32. In this state, the frame 13 has returned to the initial state mentioned last time, and the rear end of the disk cassette housed inside is slightly protruding from the insertion window 49. Just grab the rear end with your fingers and pull it out. . Here, the tip of the shutter closing plate 9 is engaged with the hole 104b of the dustproof shutter 104 of the disk cassette, and as the disk cassette is pulled out, the dustproof shutter 104 is pushed by the shutter closing plate 7 and closed. When the disk cassette is further pulled out after closing, the shutter closing plate 9 slides in the direction in which the spring 12 extends, and the hole 104b of the dustproof shutter 104 slides.
It becomes disengaged. That is, when the disk cassette is taken out, the dustproof shutter 104 is closed.

Effects of the Invention As described above, according to the present invention, the disk cassette can be automatically loaded by simply inserting the disk cassette into the insertion hole on the front surface, making the operation extremely easy. Furthermore, since there are no movable parts on the top surface of the device, It is also possible to have a design suitable for storage in a rack, etc., and its practical effects are great.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a main part of a disk cassette insertion device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a drive section of the same device, FIGS. Figure 5 is a side view of the sliding body of the same device, Figure 6 is
FIG. 7 is an explanatory diagram of the main parts of the same device, FIGS. 8 and 9 are explanatory diagrams of a disk cassette used in a video floppy device, and FIG. 10 is a perspective view of the main parts of a conventional disk cassette insertion device. be. 13... Frame body, 17... Support shaft B, 18... Upper and lower bodies, 19a, 19b... Support shaft C, 21... Pad, 26... Sliding body, 29... Support shaft A, 30...
Slit E, 31...Slit D, 32...Fixing plate, 33...Slit A, 34...Slit B,
35...Slit C, 41...Rack, 52...
Guide plate, 60... Partial gear, 62, 63, 65,
66, 71...gear, 72...worm wheel, 73...worm, 74...motor.

Claims (1)

[Scope of Claims] 1. A first position in which a casing of a disk cassette, in which a magnetic sheet is rotatably stored, is positioned by a positioning member on the apparatus main body side; A disk cassette insertion device for transferring the disk cassette between a second position where the disk cassette can be attached and detached, the device including a fixing plate fixed to the device main body side, and a plate parallel to the magnetic sheet surface on the fixing plate. a sliding body held slidably in the first direction by having a support shaft A that engages with a slit A provided in the first direction; and a driving means for sliding the sliding body; The disk cassette is accommodated and approximately positioned, and by having a supporting shaft B that engages with an L-shaped slit B provided in the fixing plate, the disk cassette is accommodated in the first direction and the first direction perpendicular to the first direction. a frame body slidably held in two directions; and a pad that stabilizes contact between the magnetic sheet and the magnetic head when a signal is recorded or reproduced by the magnetic head on the magnetic sheet. The fixing plate has a support shaft C that engages with a slit C provided in the second direction, and the upper and lower bodies are slidable in the second direction, and the sliding body is further arranged in the frame. engages with the support shaft B provided on the body, and the second
A slit D having an inclined part with a head in the direction of
and a slit E that engages with the support shaft C provided on the upper and lower bodies and has an inclined part with a head in the second direction, and the sliding member is slid by the driving means. The disk cassette insertion device is characterized in that the frame body is slid in the first direction and the second direction, and the upper and lower bodies are slid in the second direction. 2 Slit D and slit E provided in the sliding body
In relation to this, by configuring the head of the slit E in the second direction to be larger than the head of the slit D in the second direction, it is possible to move the upper and lower bodies in the second direction by sliding the sliding body. 2. The disk cassette insertion device according to claim 1, wherein the amount of sliding in the second direction is greater than the amount of sliding of the frame in the second direction. 3 In the shapes of the slits D and slits E, the disk cassette is transferred from the second position to the first position by providing an inclined part having a drop in the second direction and a part parallel to the first direction. Claim 1 or 2 is characterized in that the transfer of the upper and lower bodies having pads is completed after the transfer of the disk cassette to the first position is completed. disk cassette insertion device.