JPH0449567A - Magnetic recording and reproducing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording/reproducing apparatus capable of recording/reproducing signals on two types of magnetic tape cassettes of different sizes.

Conventional technology As a conventional technology, for example, Japanese Patent Application Laid-Open No. 1983-19350
There is a magnetic recording/reproducing device as shown in Publication No. 2. The above-described conventional magnetic recording/reproducing device will be described below with reference to the drawings.

FIG. 1e is a perspective view showing the external appearance of a conventional magnetic recording/reproducing device, and FIGS. 20 and 21 are side views of essential parts showing an attachment/detachment mechanism for an adapter and a standard chip cassette in the device.

In FIGS. 19 to 21, the magnetic recording/reproducing device 11o
has an insertion slot 112 for a standard tape cassette (adapter for small tape cassette) on the front panel 111, and a top plate 113.
It has an insertion opening 114 for a small tape cassette. The small tape cassette insertion slot 114 is provided with a door 116 which is pivotally supported on the back side.

The apparatus 110 is also provided with a standard tape cassette (adapter for small tape cassette) attachment/detachment mechanism shown in FIGS. 20 and 21. The cassette holder 116 connects the rack gear 118 on the L-shaped end surface of the side plate 117 to the pinion 11.
9, the guide #121 of the vertical support plate 120
．． You will be guided to 122 and 123.

The operation of the conventional magnetic recording angle main device configured as described above will be described below.

The small tape cassette adapter 124 has an insertion slot 1 for a standard tape cassette (small tape cassette adapter).
12 to cassette holder 11 in positions A in FIG.
6. Adapter 12 for small tape cassette
The rack gear 118 formed on the side plate 117 is driven by a drive motor (not shown) through the gears 125, 125 and the pinion 119, and the cassette holder 116 into which the cassette holder 4 is inserted is moved to the standard position A shown in FIG. 2o. Types 5, -11 are guided by guide grooves 121, 122, and 123 between position B where the tape cassette (adapter for small tape cassette) is attached to the tape drive means (not shown), and are shown in FIG. The small tape force center is moved through the storage/retrieval position C shown in FIG.

At position C, the small tape cassette insertion position of the small tape cassette adapter 124 inserted into the cassette holder 116 faces the small tape cassette insertion opening 114 of the top plate 113, so the small tape cassette is inserted at position C. Cassettes can be replaced.

Problems to be Solved by the Invention However, in the above-described configuration, when a standard-type CHIB cassette is installed in the device, the small tape cassette adapter inserted in the device must be removed from the device.
Must be stored outside the equipment. When using a small tape cassette, insert the small tape cassette adapter stored outside the device into the device, and then insert the small tape cassette into the lJX type tape cassette insertion slot 6/7 at the top of the device. There was a troublesome problem in that it had to be inserted more often.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a magnetic recording and reproducing apparatus which is constructed so that a small tape cassette as well as a standard tape cassette can be directly inserted into the apparatus, thereby improving operability.

Means for Solving the Problems In order to solve the above problems, the magnetic recording and reproducing apparatus of the present invention includes a cassette insertion slot into which a standard tape cassette or a small tape cassette smaller than the standard tape cassette is inserted, and a a first holding means for holding the standard tape cassette inserted from the insertion slot; a second holding means for holding the small tape cassette inserted from the cassette insertion slot; and the standard tape cassette or the small chive cassette. a first position for inserting the standard tape cassette into the first holding means from the cassette insertion slot; and a first position for loading the standard tape cassette into the tape drive means. a first moving means for reciprocating the first holding means between two positions; a fourth position for inserting the small tape cassette into the second holding means from the cassette insertion slot; and a fourth position for inserting the small tape cassette into the second holding means; a second moving means for reciprocally moving the standard tape cassette to a fifth position where it is mounted on the cassette drive means; the first lid opening is engaged with the means during the mounting operation of the small tape cassette by the second moving means, and a second lid opening of the small tape cassette is opened.
The lid opening means is constructed to include a means for opening the lid.

According to the present invention, with the above-described configuration, when a standard tape cassette is used, the holder for the standard tape cassette can be inserted from the cassette insertion slot in the same way as in conventional magnetic recording and reproducing devices dedicated to standard tape cassettes. It is only necessary to move the standard tape cassette back and forth between the position where it can be held and the position where it is installed in the device.The standard tape cassette can be loaded into the device simply by inserting it into the cassette insertion slot, and the time required for installation is also standard. It is equivalent to a device dedicated to type tape cassettes, and does not impair operability. When using a small tape cassette, pressing the tape cassette selection button moves the small tape cassette holder from a position where it does not interfere with the mounting operation of the standard tape cassette to a position facing the cassette insertion slot. If you insert a small tape cassette into the cassette insertion slot in this state, it will perform the same loading operation as a standard tape cassette, and the small tape cassette will be loaded into the device. Operability can be significantly improved compared to devices that use adapters. Further, with this configuration, it is possible to provide a lid opening mechanism for a small tape cassette that has a simple structure and high reliability.

EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings.

FIG. 1 is a perspective view showing the appearance of an embodiment of the magnetic recording/reproducing apparatus of the present invention. This magnetic recording and reproducing apparatus 1 has a tape cassette insertion slot 3 on a front panel 2. Figure 2 shows
FIG. 3 is a side view of a main part in a standard tape cassette insertion standby state. Referring to FIG. 2, the configuration of a standard tape cassette mounting mechanism will be explained. Vertical support plates 6, 6 arranged approximately perpendicularly on the left and right sides of the substrate 4 of the apparatus have guide grooves 8.9 for guiding the standard tape cassette holder 7 and guide grooves 1 for guiding the small tape cassette holder 10.
1.12 is formed. The protrusions 13,14 of the standard tape cassette holder 7 are slidably engaged in the guide grooves 8,9. The standard type tape cassette holder 7 is formed with a rack part 15, and the rack part 16 is engaged with a pinion gear 17 rotatably supported by a shaft 16 set up on a vertical support plate 5.6. There is. pinion gear 1
A gear 18 rotatably supported by a shaft 19 mounted on the vertical support plate 6 meshes with the gear 7 . Furthermore, gear 18
The rack part 23 of the slide lever 22, which is slidably supported on the shaft 20.21 set on the vertical support plate 5, is engaged with the rack part 23 of the slide lever 22, and the slide lever 22 is slidably supported on the shaft 20.21. A freely supported slide lever 24 and a tension spring 26
are engaged through. Note that the biasing force of the tension spring 25 is applied to the hole 26 of the slide lever 22 and the slide lever 24.
Since the protrusions 27 are in contact with each other, no force is generated in the state shown in FIG. The cam follower 28 installed on the slide lever 24 is attached to the vertical support plate 6.
A cam gear 3 rotatably supported on a shaft 21 installed in the
A first grooved cam portion (not shown) formed on one surface of o.
It is consistent with

A worm 35 fixed to a rotating shaft 34 of a drive motor 33 is engaged with the spur gear portion 32 of the cam gear 30, so that when the drive motor 33 rotates, the cam gear 30 rotates. The cam gear 3O has a first grooved cam portion and a second grooved cam portion as shown in the cam diagram of FIG. 17. The state of the device shown in FIG. 2 is the state where the cam gear 3o in the cam diagram of FIG. 17 has a rotation angle O0. 17th
The rotation angle of the cam gear 3o in the figure is + when the cam gear 30 rotates clockwise in FIG. 2, and - when it rotates counterclockwise. Therefore, when the cam gear 30 rotates in the forward and reverse directions between the rotation angle σ and 30o0 due to the rotation of the drive motor 33, the standard tape cassette holder 7
It is designed to reciprocate between the position shown in the figure and the position shown in FIG.

Next, referring to FIG. 9, the configuration of the small tape cassette mounting mechanism will be explained.

Guide grooves 11.12 for guiding the small tape cassette holder 10 are formed in the vertical support plates 6.6, which are arranged substantially perpendicularly on the left and right sides of the substrate 4 of the device. The protrusions 36.37 of the small tape cassette holder 10 are slidably engaged with the guide grooves 11.12, and the protrusions 36 are also engaged with the shafts 38 set on the vertical support plate 6.6. It is slidably engaged with a groove 40 of a rotatably supported drive arm 39. A gear 42 rotatably supported on a shaft 31 mounted on the vertical support plate 5 meshes with the gear portion 41 of the drive arm 39 . A rack portion 46 of a slide lever 46, which is slidably supported by the vertical shafts 43 and 44, is engaged with the rack portion 46 of the slide lever 46. The slide lever 46 is a slide lever 47 that is slidably supported on a shaft 43, 44 that is installed on the vertical support plate 6.
and are held together via a tension spring 99. Since the slide lever 46 is in contact with the hole 49 of the slide lever 47 at the protrusion 48, the biasing force of the tension spring 99 does not work in the state shown in FIG.

The cam follower 60 erected on the slide lever 47 has a second groove cam portion (not shown) formed on a surface opposite to the surface forming the first groove cam portion (not shown) of the cam gear 30 . ). As mentioned above, the cam gear 3o is configured to be rotationally driven by the drive motor 33, and the second grooved cam portion (not shown)
Since it has a stroke as shown in the figure, the cam gear 3
When o is rotated between rotation angles -3000 and O0, it reciprocates along a path from the state shown in FIG. 2 to the state shown in FIG. 14 via the state shown in FIG.

It looks like this.

Next, a description will be given of a locking means for positioning and locking the small tape cassette holder 10t in the standby state of the small tape cassette shown in FIG. 9, and its driving means.

In FIGS. 8 and 9, the drive arm 131 is rotatably supported on a shaft 130 set on the vertical support plate 5, and in a groove 139, the drive arm 131 is rotatably supported on a shaft 130 set on the vertical support plate 6. It is slidably engaged with a protrusion 138 of a locking lever 134 that is slidably supported by 132 and 133. A tension spring 137 is tensioned between the spring hook portion 136 of the lock lever 134 and the spring hook portion 136 of the vertical support plate 6, and biases the lock lever 134 upward in FIG. ing.

Therefore, a clockwise rotational force is acting on the drive arm 131 in FIG. 8.

Standard tape cassette holder 7 to the position shown in Figure 9.
When the tape cassette holder 7 moves, the drive arm 131 is rotationally driven in the counterclockwise direction in FIG. The locking lever 134 slides downward in FIG. 9 to close the guide groove 11 of the small tape cassette holder 10.

Next, the structure of the mechanism for opening the front cover of the small tape cassette will be explained.

In FIG. 13, a conversion lever 61 constituting a second lid opening member is rotatably supported on a shaft 62 mounted on a small tape cassette holder 10 constituting a second holding means. In FIG. 17, a lid opening lever 63, which constitutes the first lid opening member, is rotatably supported on a shaft 66 mounted on the small tape cassette holder 1o, and is biased in the X+ force direction by a screw spring 161. When the small tape cassette is inserted into the small tape cassette holder 10, the first lid opening shown in FIG. 17, which does not come into contact with the front lid 59 of the small tape cassette, is biased to a position. As shown in FIG. 13, when the small tape cassette 58 is inserted into the small tape cassette holder 10, the small tape cassette holder 10 moves to the position shown in FIG. Standard tape cassette 89 front cover io
.

When the small tape cassette holder 10 engages with the lid opening 64 and moves to the position shown in FIG. 14, the conversion lever 61 rotates in the X-direction in FIG. When the shaft 66 is pressed to open the lid, the lever 63 also rotates counterclockwise (in the X direction in FIG. 17), and the lever 63 rotates to the second lid opening position shown in FIG. 14. To open the lid, the lever 63 rotates, and the tip protrusion 61 rotates from the position shown in FIG.
6o (shown in FIG. 22) and comes into contact with the back surface of the front lid 69 to open the front lid 59 to the position shown in FIG. 14.

At this position, the tape can be pulled out for recording and playback.

Next, the configuration of a mechanism for changing the size of the opening of the cassette insertion slot will be described.

FIG. 3 is a front view of the main parts of the standard tape cassette, the external appearance of which is shown in FIG. 1, in a standby state.

Projections 68 , 69 of the shutter 67 , To, end 1
are guide grooves 73 and 74 formed in the front spring/I/2.
.

75 and 76, and is slidably engaged with the shutter 67.
The spring hooks on the front panel 2 are at sections 77 and 78, and the spring hooks on the front panel 2 are at sections 7.
9.80, tension springs 81 and 82 are tensioned. The protrusions 83 and 84 of the shutter 67 are pressed downward in FIG. 3 by the protrusions 85 and 86 of the small tape cassette holder 10, and are locked in the position shown in FIG.

When the small tape cassette holder 10 moves from the position shown in FIG. 2 to the position shown in FIG. 8, the shutter 67 moves upward in FIG. and move to the position shown in FIG. At this time, the projections 68, 69 of the shutter 67 come into contact with the ends of the guide grooves 73, 74 of the front panel 2, and are locked at the position shown in FIG. 10th
FIG. 7 shows the external appearance in the state shown in the figure, in which the portion of the tape cassette insertion slot 3 that is unnecessary when inserting a small tape cassette is covered up.

At this time, 17
The displayed characters, patterns, etc. can be seen by the user through the tape cassette insertion slot 3 of the front panel 2.

Next, the guide means of the standard tape cassette will be explained.

In FIG. 2, a standard tape cassette guide member 8 is formed on the top surface of a small tape cassette holder 10. As shown in FIG. As shown in FIG. 3, the guide member 87 is at approximately the same height as the bottom surface 88 of the standard type tape cassette holder 7, and as shown in FIG. When the tape cassette 89 is inserted into the apparatus, it is guided so that it is inserted into the standard tape cassette holder 7.

Next, a tape drive means for a small tape drive unit will be explained.

As shown in Figure 10, a small tape cassette holder 1o
A gear 91 is rotatably supported on a shaft 9o installed in the shaft 9o. As shown in FIG. 13, the small tape cassette 58 is attached to the small tape cassette holder 18,<.

1o, the gear 91 meshes with a gear (not shown) formed on a take-up reel hub (not shown) in the small tape cassette 68. When the small tape cassette holder 10 is moved to the position shown in the side view of FIG. 14 and the top view of FIG. The magnetic tape can be wound by a winding side reel hub (not shown) by meshing with a gear part 96 formed on the reel stand 92 and rotating a winding motor 93 which is integrated with the winding reel stand 92. .

Each operation will be explained below with reference to the drawings.

The case where the standard tape cassette 89 is installed in the apparatus will be described. The external view in Figure 1 and the side view of the main parts in Figure 2 are as follows:
The standard tape cassette standby state is shown. In this state, the standard tape cassette 89 is inserted from the cassette insertion slot 3 into the standard tape cassette insertion slot -7.
As shown in the figure. Standard 191.7 When the standard tape cassette detection means (not shown) detects that the quasi-star tape cassette 89 has been inserted to a predetermined position in the standard tape cassette holder 7, the drive motor 33 rotates and the cam gear 30 Rotate clockwise. The cam gear 30 is formed with a first grooved cam portion (not shown) having a stroke as shown in the cam diagram in FIG. The slide lever 24 engaged with the cam follower 28 slides to the right in FIG. Therefore, slide lever 2
The slide lever 22, which is in close contact with the protrusion 27 of No. 4 and the hole 26, also slides to the left in FIG. Ru. The pinion gear 1 meshing with the gear 18 as the gear 18 rotates counterclockwise.
7 rotates clockwise, and the pinion gear 17 and rack part 1
The standard type tape cassette holder 7, which is engaged at 5, is guided by guide grooves 8 and 9 and moves to the right in FIG. 6 until it reaches the state shown in FIG. Attach to. At this time, the front lid 100 of the standard type tape cassette 89 rides up on the standard type tape cassette two-touch portion 64 provided on the upper plate 63, and is in an open state as shown in FIG. Further, the drive motor 33 rotates and the slide lever 24 moves to the right, but the slide lever 22 cannot move because the standard tape cassette 89 has already been attached. Then, the protrusion 27 of the slide lever 24 and the hole 26 of the slide lever 22 are separated, and the biasing force of the tension spring 25 acts on the slide lever 22, thereby pressing the standard tape cassette 89 onto the substrate 4.

A case in which a standard tape cassette is removed from the device will be explained.

When you press the cassette eject button 97 provided on the front panel 2,
In the state shown in FIG. 6, the drive motor 33 rotates and drives the cam gear 30 to rotate counterclockwise. Therefore, the operation opposite to the standard tape cassette loading operation described above is performed to attach the standard tape cassette 21, .

The router 7 moves from the position shown in FIG. 6 to the position shown in FIG. In the state shown in FIG. 5, the user can grasp a part of the standard tape cassette 89 protruding outside the apparatus 1 and take it out of the apparatus.

Next, the case where a small tape cassette is installed in the apparatus will be explained.

When the tape cassette selection button 98 is pressed in the standard tape cassette standby state shown in FIGS. 1 and 2, the drive motor 33 rotates and drives the cam gear 3° counterclockwise. The cam gear 30 is formed with a second grooved cam portion (not shown) having a stroke as shown in FIG. The fact that the cam gear 30 rotates counterclockwise from the state shown in FIG. 2 means that the rotation angle in FIG.
0, the second structural cam part (not shown) has a stroke, and the slide lever 47 is slidably engaged with the second groove cam part (not shown) and the cam follower 60.
slides to the right in Figure 2. Slide lever 4
The slide lever 46, which is in contact with the hole 48 of No. 7 and the protrusion 48, also slides to the right in FIG. Rotate counterclockwise. Therefore, the drive arm 39 that is meshed with the gear 42 and the gear portion 41 rotates clockwise, and a portion of the drive arm 39 is rotated clockwise.
Then, the small tape cassette holder 10 engaged with the protrusion 36 is moved along the guide groove 11 to the position shown in FIG. At this time, as shown in FIG. 3, the projections 85 and 86 of the small tape cassette holder 10
When the small tape cassette holder 10 moves to the position shown in FIG. 8, the shutter 67 is pressed at 3.84 and is in the position shown in FIG. 3 against the biasing force of the tension springs 81 and 82. The guide groove 73 due to the biasing force of 82
, 74, 75° 76, and moves to the position shown in FIG. The seventh figure shows the appearance in this state.
As shown in the figure, a portion of the cassette insertion slot 3 that is unnecessary for inserting a small tape cassette is covered with a shutter 67. At this time, the characters and designs displayed on the display section 140 are displayed on the front panel 23 provided on the shutter 67.
The tape cassette insertion slot 3 is visible to the user, and the user can confirm that a small tape cassette is being used, so he or she may accidentally insert a standard tape cassette into the tape cassette insertion slot 3. Things will go away.

When the cam gear 3o further rotates counterclockwise to 1oo0 from the state shown in FIG. 8, the first
When the grooved cam portion has a stroke, the standard type tape cassette holder 7 moves to the position shown in FIG.

At this time, the protrusion 13 of the standard tape cassette holder 7
The driving arm 131 is rotationally driven in the counterclockwise direction in FIG.
4 slides downward in FIG. 9 to close the guide groove 11 of the small tape cassette holder 10. Further, when the cam gear 30 rotates counterclockwise to 1200 degrees, the 18th
As shown in the figure, the second grooved cam portion has a stroke that drives the slide lever 47 to the left in FIG. Therefore, the drive arm 39 tries to rotate counterclockwise in FIG. comes into contact.

Therefore, since the slide lever 45 cannot slide, the protrusion 48 of the slide lever 46 and the hole 49 of the slide lever 47 are separated, and the tension spring 99
As a result, the slide lever 45 is biased toward the left in FIG. The biasing force of the slide lever 45 biases the drive arm 39 to rotate counterclockwise in FIG. 9 via the gear 42, /J%
Press the protrusion 36 of the mold tape cassette holder 10 against the locking lever 134. Therefore, the small tape cassette holder 1o is positioned in the state shown in FIG. 9 in a small tape cassette standby state.

The cam gear 30 is rotated 1200 degrees counterclockwise from the state shown in FIG.
When a mode detection switch (not shown) detects rotation, the drive motor 33 stops rotating. The state at this time is shown in FIGS. 9 to 11, which show the small tape cassette standby state 26.\-7.

Figures 12 and 1 show the state in which the small tape cassette 68 is inserted into the device in the standby state for the small tape cassette.
Figure 3. As shown in FIGS. 12 and 13, a small tape cassette 68 is mounted on the small tape cassette holder 10.
When inserted, the gear 91 meshes with a gear (not shown) formed on a take-up side reel hub (not shown) in the small tape cassette 68. At this time, the lid opening lever 63 is biased in the X direction by the screw spring 151, and the first lid opening is in the position, so when inserting the small tape cassette into the small tape cassette holder 10, the front of the small tape cassette is It does not come into contact with the lid 59. As shown in FIG. 12, when the small tape cassette detection means (not shown) detects that the small tape cassette 68 has been inserted to a predetermined position in the small tape cassette holder 10, the drive motor 33 rotates and the cam gear 3o is further rotated counterclockwise from the position 7 in FIG. When the cam gear 30 further rotates counterclockwise from the state shown in FIG. 12, 265,
7 This means that in the cam diagram of Fig. 18, the rotation angle -12
The second grooved cam portion (not shown) has a stroke.

Therefore, the slide lever 47, which is slidably engaged with the second grooved cam portion (not shown) and the cam follower 60, further slides to the right from the position shown in FIG.
Therefore, the slide lever 46, which is in contact with the hole 49 of the slide lever 47 with the protrusion 48, also slides to the right in FIG. As the slide lever 46 moves to the right in FIG. 12, the gear 42 meshing with the rack portion 46 of the slide lever 46 rotates counterclockwise, and the drive arm meshing with the gear 42 and the gear portion 41 rotates counterclockwise. 39 further rotates clockwise from the position shown in FIG. Therefore, the protrusion 3 can slide freely into the groove 40 of the drive arm 39.
The small tape cassette holder 10 holding 6 is
While holding the small tape cassette 68, the guide 7 is guided further to the right from the position shown in FIG. 12 and moves to the position 27 shown in the plan view of FIG.
.

Move to position. At this time, the protrusion 6 of the conversion lever 61
2 engages with the lid holder 64 for opening the front lid 100 of the standard tape cassette 89 formed on the upper plate 63, and the first
The small tape cassette holder 10 is guided by the guide grooves 11 and 12 and moves downward in FIG. 14 to the position shown in FIG. 4, and the small tape cassette 68 is installed in the apparatus. 1st
When the small tape cassette holder 10 moves to the position shown in FIG. 4, the conversion lever 61 rotates in the direction X in FIG. The second lid opening shown in FIG. 14 is also rotated in the counterclockwise direction (X direction in FIG. 17). To open the lid, the lever 63 rotates, and the tip protrusion 61 rotates from the position shown in FIG. ) is brought into contact with the back side of the front lid 69 to open the front lid 69 to the position shown in FIG. FIGS. 16 and 16 are a plan view and a front view showing the state shown in FIG. 14.

As shown in FIGS. 16 and 16, when a small tape cassette is installed in the device, a gear 91 rotatably supported on a shaft 90 of the small tape cassette holder 10 is used for winding a standard tape cassette. Since it meshes with a gear portion 96 formed on the take-up reel stand 92, the magnetic tape in the small tape cassette 68 can be wound up by the take-up motor 93, which is integrated with the take-up reel stand. At this time, the supply side full hub (not shown) in the small tape cassette 68 directly engages with the supply reel stand 94 for the standard tape cassette, and the supply motor 9 integrated with the supply reel stand 94 engages directly with the supply reel stand 94 for the standard tape cassette.
It can be wound up by 5.

In FIG. 14, when the drive motor 33 further rotates to drive the cam gear 3o counterclockwise, the slide lever 47 further slides to the right in FIG. However, the slide lever 46 does not move because the small tape cassette 68 is already attached to the device and the drive arm 39 cannot rotate. Therefore, the hole 49 of the slide lever 47 and the protrusion 48 of the slide lever 46,
is 29\7 apart and the drive arm 39 is moved by the biasing force of the tension spring 99.
is rotated clockwise so that the small tape cassette 58 is crimped onto the device.

Next, the case of taking out the small tape cassette from the apparatus will be explained.

Figure 14 shows a state in which a small tape cassette is being used, and from this state the cassette eject button 97 shown in Figure 7 is pressed.
When is pressed, the drive motor 33 rotates and rotates the cam gear 3o clockwise from the state shown in FIG. Then, an operation opposite to that described in the small tape cassette mounting operation is performed, and the small tape cassette holder 10 moves from the position shown in FIG. 14 to the position shown in FIG. 12. In the state shown in FIG. 12, the user can grasp a portion of the small tape cassette 68 protruding from the device 1 and take it out of the device. If it is desired to continue using the small tape cassette, it can be used again as described above by inserting a new small tape cassette into the apparatus in the state shown in FIG.

If you want to stop using the small tape cassette and use the standard type tape cassette, press the tape cassette selection button 98 shown in FIG. By performing the reverse operation of changing to the cassette standby state, the state shown in FIG. 9 is changed to the state shown in FIG. 2, and a standard type tape cassette can be used.

Effects of the Invention As described above, the present invention provides a cassette insertion slot into which a standard tape cassette or a small tape cassette smaller than the standard tape cassette is inserted, and a second tape cassette that holds the standard tape cassette inserted from the cassette insertion slot. a second holding means for holding the small tape cassette inserted from the cassette insertion slot; a tape drive means for driving the magnetic tape in the standard tape cassette or the small tape cassette; The first holding means is moved back and forth between a first position where the standard tape cassette is inserted into the first holding means from the cassette insertion slot and a second position where the standard tape cassette is mounted on the tape drive means. reciprocating movement between a first moving means for causing the small tape cassette to be inserted into the second holding means from the cassette insertion opening and a fifth position for mounting the small tape cassette on the tape cassette driving means; a first lid opening means for opening a front lid of the standard tape cassette during the mounting operation of the standard tape cassette by the first moving means; The first lid opening engages with a means to open the front lid of the small tape cassette during the mounting operation of the small tape cassette by the second lid opening,
Two types of tape cassettes, standard tape cassettes and small tape cassettes, can be used magnetically by simply inserting the tape cassette you want to use into the device's cassette insertion slot, without having to use a small tape cassette adapter like in the past. It can be attached to a recording/playback device. Further, the second lid opening means is rotatably supported by the second holding means, and is provided in front of the small tape cassette by an elastic member when the small tape cassette is inserted into the second holding means. The first lid opening member that does not abut the lid is biased to a position, and the first lid opening member is rotatably supported by the second holding means and the small tape cassette is moved by the second moving means. During the mounting operation, the first lid opening means and the first lid opening member are engaged with each other, and the first lid opening member is moved from the position of the small tape cassette. The second lid opening that opens the front lid by contacting the front lid is rotated to the position.The second lid opening is made of a member, which allows the lid opening of a small tape cassette to be opened with a simple structure and high reliability. can provide a mechanism.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the external appearance of a standard tape cassette standby state in an embodiment of the magnetic recording/reproducing apparatus of the present invention, FIG. 2 is a side view of main parts showing the standard tape cassette standby state, and FIG. FIG. 4 is a front view of the main parts showing the standard tape cassette standby state, FIG. 4 is a plan view of the main parts showing the standard tape cassette standby state, and FIG. 6 is a side view of the main parts showing the standard tape cassette inserted into the device. , Fig. 6 is a side view of the main parts showing the state in which the standard type tape force set 33 is attached to the device, Fig. 7 is a perspective view showing the external appearance of the small tape force set in standby state, and Fig. 8 is the standard type tape force set 33. A side view of a main part showing an aspect of transition from a cassette standby state to a small tape cassette standby state,
9 is a side view of the main part showing the small tape cassette standby state, FIG. 10 is a front view of the main part showing the small tape cassette standby state, FIG. 11 is a plan view of the main part showing the small tape cassette standby state, and FIG. The figure is a side view of the main part showing the state in which the small tape cassette is inserted into the device, Fig. 13 is a plan view of the main part showing the state in which the small tape cassette is inserted into the device, and Fig. 14 is the main part showing the state in which the small tape cassette is inserted into the device. Fig. 16 is a plan view of the main part showing the state in which the small tape cassette is installed in the device, Fig. 16 is a front view of the main part showing the state in which the small tape cassette is installed in the device, and Fig. 17 is a side view of the main part showing the state. The figure is a perspective view showing a mechanism for opening the front cover of a small tape cassette, FIG. 18 is a cam line diagram of the first grooved cam portion and the second grooved cam portion formed on the cam gear 3o, and FIG. 19 is a conventional Figure 2o is a side view of the main part showing the tape cassect loading mechanism of the conventional magnetic recording and reproducing apparatus, and Figure 21 is a perspective view of the external appearance of the conventional magnetic recording and reproducing apparatus. FIG. 22 is a side view of the main part showing the tape cassette standby state, and FIG. 22 is a back view of the small tape cassette. 1...Magnetic recording and reproducing device, 2...Front panel, 3...Tape cassette insertion slot, 4...
... Board, 6゜6 ... Vertical support plate, 7...
...Standard tape cassette holder, 10...
・・Small tape sumo wrestler holder-30・・・・Force A
Tooth JE, 39...Mountain/drive arm, 61...Convert/(-153...Lid ake lever, 58...
...Small tape cassette, 63...Top plate, 6
7... Shutter, 87... Guide member, 89... Standard tape cassette, 92...
・Take-up υ reel stand, 96... Supply reel stand, 1
31... Drive arm, 134... Locking lever, 140... Display unit.

Claims (2)

[Claims] (1) a cassette insertion opening into which a standard tape cassette or a small tape cassette smaller than the standard tape cassette is inserted; a first holding means for holding the standard tape cassette inserted from the cassette insertion opening; and a first holding means for holding the standard tape cassette inserted from the cassette insertion opening; a second holding means for holding the small tape cassette inserted from the insertion slot; a tape drive means for driving the standard tape cassette or the magnetic tape in the small tape cassette; a first moving means for reciprocating the first holding means between a first position where the cassette is inserted into the first holding means and a second position where the standard tape cassette is mounted on the tape drive means; a second moving means for reciprocating between a fourth position where the small tape cassette is inserted into the second holding means from the cassette insertion opening and a fifth position where the small tape cassette is mounted on the tape cassette drive means; , a first lid opening means for opening the front lid of the standard tape cassette during the mounting operation of the standard tape cassette by the first moving means; and during the mounting operation of the small tape cassette by the second moving means. and second lid opening means that engages with the first lid opening means and opens the front lid of the small tape cassette. (2) The second lid opening means is rotatably supported by the second holding means and the second lid opening means of the small tape cassette is
a first lid opening member that is biased by an elastic member to a first lid opening position that does not come into contact with the front lid of the small tape cassette when inserted into the holding means; is supported by the second moving means and engages with the first lid opening means and the first lid opening member during the mounting operation of the small tape cassette by the second moving means so as to cause the first lid opening member to open the first lid. 2. The magnetic recording and reproducing apparatus according to claim 1, further comprising a second lid opening member that contacts the front lid of the small tape cassette and rotates to a second lid opening position for opening the front lid. .