JPH03260950A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To obtain the magnetic recording and reproducing device contrived in view of enhancing its operability by constituting the device in such a manner that a small size tape cassette can directly be inserted into the device as well as a standard tape cassette. CONSTITUTION:When the standard tape cassette is inserted into a prescribed position of a standard tape cassette holder 7, a driving motor 33 is started, and a cam gear 30 is driven to rotate clockwise. Consequently, a slide lever 24 is slid to move, and the standard tape cassette holder 7 is guided to move by guide grooves 8 and 9, and the standard cassette tape is loaded into the device. Then, when the small size tape cassette is inserted into a prescribed position of a small size tape cassette holder 10, the cam gear 30 is driven to rotate anti-clockwise. Consequently, the cassette holder 10 is guided to move by guide grooves 11 and 12 to load the small size tape cassette into the device. A front door 141 is provided as an inserting hole door means in this device. By this method, since the opening part is covered when the cassette is under the standby state or the state in use, no dust, etc., are intruded into the device, and hence the reliability is improved.

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 chief 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. 21 is a perspective view showing the external appearance of a conventional magnetic recording/reproducing device, and FIGS. 22 and 23 are side views of essential parts showing an attachment/detachment mechanism for an adapter and a standard tape cassette in the device.

In FIGS. 21 to 23, the magnetic recording/reproducing device 110
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. A door 115 is provided in the small tape cassette insertion slot 114 with its back side being pivotally supported.

The apparatus 110 is also provided with a standard tape cassette (adapter for small tape cassette) attachment/detachment mechanism shown in FIGS. 22 and 23. The cassette holder 116 connects the rack gear 118 on the single-shaped end surface of the side plate 117 to the pinion 11.
9, the guide groove 121 of the vertical support plate 120
・You will be guided to 122 and 123.

The operation of the conventional magnetic recording/reproducing apparatus 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 the cassette holder 11 in position A in FIG.
6. Adapter 124 for small tape cassette
The cassette holder 116 into which the drive motor (
Rack gear 11 formed on side plate 117 via gears 125, 126 and pinion 119 by
8 is driven, guide grooves 121, 122, 123, and moves through the small tape cassette storage/retrieval position C shown in FIG.

In position C, the small tape cassette insertion position of the small tape cassette adapter 124 inserted into the cassette holder 116 is the small tape cassette insertion slot 1 of the top plate 113.
14, the small tape cassette can be replaced at this position C.

Problems to be Solved by the Invention However, with the above configuration, when a standard tape cassette is installed in the device, the adapter for the small tape cassette inserted in the device must be removed from the device.
Must be stored outside the equipment. In addition, when using a small tape cassette, you must first insert the small tape cassette adapter stored outside the device into the device, and then insert the small tape cassette from the small tape cassette insertion slot at the top of the device. There was the troublesome problem of not being able to do so.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a magnetic recording and reproducing apparatus which is designed to allow a small tape cassette to be directly inserted into the apparatus in the same way as a standard tape cassette, 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 has 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 cassette insertion slot. A first holding means for holding a standard tape cassette inserted from the cassette insertion slot, a second holding means for holding a small tape cassette inserted from the cassette insertion slot, and a magnetic tape for driving the magnetic tape in the standard tape cassette or the small tape cassette. and a tape drive means for reciprocating the first holding means 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. a first moving means for moving the standard tape cassette; a third position that does not interfere with the movement of the standard tape cassette by the first moving means; a fourth position that inserts the small tape cassette into the second holding means from the cassette insertion slot; selectively moving the second holding means to a fifth position for mounting the tape cassette on the tape cassette drive means, and mounting or removing the standard tape cassette from the tape drive means by the first moving means; a second moving means for moving the second holding means to the third position; a small tape cassette insertion portion of the second holding means in the cassette insertion opening when the second holding means is in the fourth position; a covering means that substantially covers the portions that are not opposed; and a covering means that substantially covers the cassette insertion slot when the first holding means is in the first position and the second position, and when the second holding means is in the fifth position. The cassette insertion opening includes an insertion opening surface means that substantially covers a portion of the cassette insertion opening that is not covered by the covering means.

Effects of the present invention With the above-described configuration, when a standard tape cassette is used, the holder for the standard tape cassette is inserted from the cassette insertion slot, similar to 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, so simply inserting the standard tape cassette into the cassette insertion slot allows it to be installed in the device, and the time required for installation is also the same as that of the standard type. It is equivalent to a device dedicated to tape cassettes, and does not impair operability. When using a small tape cassette, when the tape cassette selection button is not pressed, the small tape cassette holder moves 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. In this state, when you insert a small tape cassette into the cassette insertion slot, it performs the same operation as installing a standard chief cassette, and the small tape cassette is installed in the device. Operability can be significantly improved compared to devices that use adapters.

Furthermore, since the insertion opening surface means is provided, the opening of the cassette insertion opening can be used not only when the standard type tape cassette is in the standby state and when it is installed in the device, but also when it is used when a small tape cassette is installed in the device. Since the parts are covered, the internal mechanism is not visible, resulting in an excellent appearance, and the intrusion of foreign matter such as clumps is reduced, resulting in 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. The vertical support plates 5 and 6, which are arranged substantially perpendicularly on the left and right sides of the substrate 4 of the apparatus, have guide grooves 89 for guiding the standard tape cassette holder 7 and guide grooves 11 for guiding the small tape cassette holder 10.
．． 12 are formed. The protrusion 11.14 of the standard tape cassette holder 7 is slidably engaged in the guide groove 8.9.

The standard type tape cassette holder 7 is formed with a rack part 15, and the rack part 15 supports the pinion gear 1 which is rotatably supported on a shaft 16 set on a vertical support plate 5.6.
7 is engaged. The pinion gear 17 includes a gear 18 rotatably supported on a shaft 19 mounted on the vertical support plate 5.
are meshing. Furthermore, the gear 18 is provided with a vertical support plate 5.
A rack portion 23 of a slide lever 22 that is slidably supported on a shaft 20.21 is engaged with a slide lever 24 that is slidably supported on a shaft 20.21. is engaged with via a tension spring 25. Note that the biasing force of the tension spring 25 is the same as that of the slide lever 2.
Since the hole 26 of 2 and the protrusion 27 of the slide lever 24 are in contact with each other, no force is generated in the state shown in FIG. The cam follower 28 erected on the slide lever 24 is connected to the shaft 21 erected on the vertical support plate 5.
The cam gear 30 is engaged with a first grooved cam portion (not shown) formed on one surface of a cam gear 30 rotatably supported by the cam gear 30 . 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 30 is formed with a first grooved cam portion and a second grooved cam portion as shown in the cam diagram in FIG. The state of the device shown in FIG. 2 is a state where the rotation angle of the cam gear 30 in the cam diagram of FIG. 20 is 0°. The rotation angle of the cam gear 30 in FIG. 20 is defined as the time when the cam gear 30 rotates clockwise in FIG. 2 and the time when the cam gear 30 rotates counterclockwise by -1. Therefore, when the cam gear 30 rotates forward and backward at a rotation angle of 00 to 300 degrees due to the rotation of the drive motor 33, the standard tape cassette holder 7 moves from the position shown in FIG. 2 to the position shown in FIG. It is designed to reciprocate between the position shown in FIG. 7 and the position shown in FIG.

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

Guide grooves 11 and 12 for guiding the small tape cassette holder 10 are formed in the vertical support plates 5 and 6, which are arranged substantially perpendicularly on the left and right sides of the substrate 4 of the apparatus. The projections 36.37 of the small tape cassette holder 10 are slidably engaged with the guide grooves 11.12, and the projections 36 are rotated around shafts 38 set on the vertical support plates 5, 6. It is slidably engaged with a groove 40 of a movably 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 45 that is slidably supported by a shaft 4344 is engaged with the shaft 4344. The slide 1/bar 45 is a shaft 4 mounted on the vertical support plate 5.
It is engaged with a slide lever 47 slidably supported by 3.44 through a tension spring 99. Slide lever 4
5 is in contact with the hole 49 of the slide lever 47 with the protrusion 48, so that the biasing force of the tension spring 99 does not work in the state shown in FIG. The cam follower 50 installed on the slide lever 47 is attached to the first cam gear 30.
The grooved cam portion (not shown) is slidably engaged with a second grooved cam portion (not shown) formed on a surface opposite to the surface on which the grooved cam portion (not shown) is formed. As mentioned above, the cam gear 30 is configured to be rotationally driven by the drive motor 33, and the cam gear 30 is configured to be rotationally driven by the drive motor 33.
Since the grooved cam portion (not shown) has a stroke as shown in FIG. 20, the cam gear 30 has a rotation angle of 300° to
When rotated between 0 degrees, it reciprocates along a path from the state shown in FIG. 2 to the state shown in FIG. 9 and then to the state shown in FIG. 15.

Next, the locking means for positioning and locking the small tape cassette holder 10 in the small tape cassette standby state shown in FIG. 10 and its driving means will be described.

In FIGS. 9 and 10, the drive arm 131 is
A locking lever 134 is rotatably supported on a shaft 130 set on the vertical support plate 5, and slidably supported in the groove 139 on shafts 132 and 133 set on the vertical support plate 5. It is slidably engaged with the protrusion 138 of.

The spring hook of the locking lever 134 is connected to the portion 135 and the vertical support plate 5.
A tension spring 137 is stretched between the spring hooks 136 and heats the locking lever 134 in two directions as shown in FIG. Therefore, a clockwise rotational force is acting on the drive arm 131 in FIG. 9. When the standard tape cassette holder 7 moves to the position shown in FIG. 10, the drive arm 131 is rotationally driven in the counterclockwise direction in FIGS. 1-0 by the protrusion 13 of the standard tape cassette holder 7.
The locking lever 134, which is engaged with the groove 139 of the drive arm 131 and the protrusion 38, slides downward in FIG. 10 to close the guide groove 11 of the small tape cassette holder 1-0. It has become.

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

In FIG. 14, the conversion lever 51 is rotatably supported on a shaft 52 mounted on the small tape force center holder 10. As shown in FIG. In Fig. 19, the lid lever 53 is rotatably supported on a shaft 54 mounted on an auxiliary lever 55, which is rotatably supported on a shaft 56 mounted on a small tape cassette holder]-0. (not shown) by Y
It is biased downward. The auxiliary lever 55 is biased to rotate downward in the X direction by a torsion spring (not shown), and when the shaft 54 comes into contact with the protrusion 57 of the small tape cassette holder 10, it is moved to the position shown in FIG. It is locked in. Therefore, as shown in FIG. 14, when the small tape cassette 58 is inserted into the small tape cassette holder 10, the projection 61 of the lid lever 53 is inserted between the front lid 59 of the small tape cassette 58 and the main body 60. . When the small tape cassette holder 10 moves to the position shown in FIG.
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
When the small tape cassette holder 10 moves to the position shown in FIG. 5, the conversion lever 51 rotates counterclockwise in FIG. Rotate counterclockwise. When the auxiliary lever 55 rotates, the lid lever 53 also rotates counterclockwise in FIG.
As shown in the figure, the front lid 59 of the small tape cassette 58 is opened.

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.

The protrusions 68, 69, 70.71 of the shutter 67 are slidably engaged with the guide grooves 73.7475.76 formed in the front panel 2, and the spring hooks of the shutter 67 are
7.78 and the spring hook of the front panel 2 are part 79. ．． A tension spring 8182 is tensioned between it and 80. Shutter 6
The protrusion 8384 of 7 is the small tape cassette holder 1.
It is pressed downward in FIG. 3 by the protrusions 85 and 86 of 0, and is 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.
82, it moves upward in FIG. 3 integrally with the small tape cassette holder 10, and moves to the position shown in FIG. 11. At this time, the protrusions 68, 69 of the rear soter 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. FIG. 8 shows the external appearance in the state shown in FIG. 11, in which portions of the tape cassette insertion slot 3 that are not needed when inserting a small Qi-Pu cassette are covered up. At this time, characters, patterns, etc. displayed on a display section 140 provided on the shutter 67 are made visible to 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, the guide part 87 of the standard tape cassette
is formed on the top surface of the small tape cassette holder 10. As shown in FIG. 3, the guide member 87 is at approximately the same height as the bottom surface 88 of the standard tape cassette holder 7, and as shown in FIG. When the cassette 89 is inserted into the device, it is guided to be inserted into the standard tape cassette holder 7.

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

As shown in FIG. 11, a small tape cassette holder 10
A gear 91 is rotatably supported on a shaft 90 installed in the shaft 90 . When the small tape cassette 58 is inserted into the predetermined position of the small tape cassette holder 10 as shown in FIG. ) and gear 9
1 are designed to mesh. The gear 91 is shown in the side view of FIG. 15 and the side view of the small tape cassette holder 10 in FIG.
When moved to the position shown in the plan view of the figure, as shown in FIGS. 16 and 17, the gear portion 96 formed on the take-up reel stand 92 for the standard chief cassette meshes with the take-up reel stand 92. By rotating the integrated winding motor 93, the magnetic tape can be wound up by a winding side reel hub (not shown).

Next, a cover means for covering the cassette insertion port 3 will be explained.

In FIG. 2, the front door 14 is rotatably supported on a shaft 144 mounted on a protrusion 1437 8 of the front panel 2.
1 is biased to rotate clockwise in FIG. 2 by a biasing spring (not shown). A lever 14 is used to open the door, which is rotatably supported on a shaft 147 mounted on a protrusion 148 of the upper plate 63.
5 is biased to rotate counterclockwise in FIG. 2 by a biasing spring (not shown). As shown in FIG. 5, when the standard tape cassette 89 is inserted from the cassette insertion slot 3 of the front panel 2, the front door 141 rotates around the shaft 144, and the standard tape cassette 89 is inserted into the standard tape cassette holder 7. It is designed to be installed on the Also, when taking out the standard tape cassette 89 from the device, as shown in FIG.
The standard tape cassette holder 7 pushes up the protrusion 146 of the lever 145 to open the door, and the lever 14 pushes up the door.
5 rotates in the clockwise direction in FIG. It is configured to open to a position that does not impede discharge from the container.

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 into the standard tape cassette holder 7 from the cassette insertion slot 3.
As shown in the figure. When the standard tape cassette detection means (not shown) detects that the standard 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 is rotated clockwise. drive to rotate. 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, the slide lever 22, which is in contact with the protrusion 27 of the slide lever 24 through the hole 26, also slides toward the right in FIG.
The gear 18 meshing with the rack portion 23 of the slide lever 22 is driven to rotate counterclockwise.As the gear 18 rotates counterclockwise, the pinion gear 17 meshing with the gear 18 rotates clockwise. , the standard tape cassette holder 7, which is engaged with the pinion gear 17 and the rack part 15, is guided by the guide grooves 8 and 9 and moves to the right in FIG. The standard tape cassette 89 is installed in the device by moving it to the state shown in the figure. At this time, the front lid 10.0 of the standard type tape cassette 89 rides on the standard type tape cassette lid part 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. Therefore, the protrusion 27 of the slide lever 24 and the hole 26 of the slide lever 22 are spaced apart, 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.

The case of taking out a standard tape cassette 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. 7, the drive motor 33 rotates and drives the cam gear 30 to rotate counterclockwise. Therefore, the standard tape cassette holder 7 is moved from the position shown in FIG. 7 to the position shown in FIG. 5 via the position shown in FIG. . At this time, as mentioned when explaining the configuration, the front door 141 is opened by the lever 145, and the standard tape cassette 89 partially protrudes from the cassette insertion slot 3.
The state shown in the figure will be reached. 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.

1 2 In the standard tape cassette standby state shown in FIGS. 1 and 2, when the tape cassette selection button 98 is pressed, the drive motor 33 rotates and drives the cam gear 30 to rotate counterclockwise. The force 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.
The second grooved cam portion (not shown) has a stroke at ゜, and the slide lever 47 is slidably engaged with the second grooved cam portion (not shown) by the cam follower 50.
slides to the right in Figure 2. Slide lever 4
The slide lever 45, which is in contact with the hole 49 of No. 7 and the protrusion 48, also slides to the right in FIG. Rotate to. Therefore, the drive arm 39 that is engaged with the gear 42 and the gear portion 41 rotates clockwise, and moves the small tape cassette holder 10 that is engaged with the protrusion 36 in the groove 40 along the guide groove 11 into the ninth position. Move it to the position shown in the figure. At this time, as shown in Figure 3,
The shutter 67 is pushed against the projection 8384 by the projections 85 and 86 of the small tape cassette holder 10 and is in the position shown in FIG. 3 against the urging force of the tension springs 81 and 82.
When the small tape cassette holder 10 moves to the position shown in FIG.
Move to the position shown in the diagram. FIG. 8 shows the external appearance in this state, in which 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 provided on the shutter 67 are visible to the user through the tape cassette insertion slot 3 of the front panel 2, and the user is in the state of using a small tape cassette. Since it can be confirmed that the tape cassette is present, it is possible to avoid accidentally inserting a standard tape cassette into the tape cassette insertion slot 3.

When the cam gear 30 further rotates counterclockwise to 100 degrees from the state shown in FIG. 9, the first
The grooved cam portion has a stroke, and the standard 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 drive arm 131 is rotationally driven in the counterclockwise direction in FIG. 10, and the locking lever 134 engaged with the drive arm 131 slides downward in FIG. Close. moreover,
When the cam gear 30 rotates counterclockwise to 1200 degrees,
As shown in FIG. 20, 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.
Since the small tape cassette holder 10 is closed, the protrusion 36 of the small tape cassette holder 10 and the locking lever 134 come into contact with each other. Therefore, since the slide lever 45 cannot slide, the protrusion 48 of the slide lever 45 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. Therefore, the small tape cassette holder 10 is positioned in the state shown in FIG. 10 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. 10 to 12, which show the small tape cassette standby state.

When the small tape cassette 58 is inserted into the device in the small tape cassette standby state from the insertion port 3, the small tape cassette 58 is guided by the small tape cassette selection button 141 and inserted into the small tape cassette holder 5610.

FIGS. 13 and 14 show the state in which the small tape cassette 58 is inserted into the apparatus in the small tape cassette standby state. As shown in FIGS. 13 and 14, a small tape cassette 5 is mounted on a small tape cassette holder 10.
8, the projection 61 of the lid lever 53 is inserted between the main body 60 of the small tape cassette 58 and the front lid 59, and the gear 91 is inserted into the take-up reel hub (not shown) inside the small tape cassette 58. It is adapted to mesh with a formed gear (not shown).

As shown in FIG. 13, when the small tape cassette detection means (not shown) detects that the small tape cassette 58 has been pushed into the small tape cassette holder 10 to a predetermined position, the drive motor 33 rotates and the cam gear 30 to 13th
Rotate further counterclockwise from the state shown in the figure. Further rotation of the cam gear 30 in the counterclockwise direction from the state shown in FIG. 13 means that the cam gear 30 further rotates in the negative direction from the rotation angle 1200 in the cam diagram of FIG. (not shown) has a stroke. Therefore, the slide lever 4 is slidably engaged with the second grooved cam portion (not shown) and the cam follower 50.
7 further slides to the right from the position shown in FIG.
The slide lever 45 that is in contact with the lever 9 also slides to the right in FIG. As the slide lever 45 moves to the right in FIG. 13, the gear 42 that meshes with the rack portion 46 of the slide lever 45 rotates counterclockwise, and the drive arm that meshes with the gear 42 and the gear portion 41 rotates counterclockwise. 3
9 further rotates clockwise from the position shown in FIG. Therefore, the small tape cassette holder 1 has the protrusion 36 slidably engaged with the groove 40 of the drive arm 39.
0 further moves to the right from the position shown in FIG. 13 while holding the small tape cassette 58, guided by the guide grooves 11 and 12, and moves to the position shown in the plan view of FIG. 16. At this time, the protrusion 62 of the conversion lever 51 is connected to the upper plate 63.
The small tape cassette holder 10 is guided into the guide groove 11.12 downward in FIG. 15 to the position shown in FIG. When the small tape cassette 58 is installed in the device, the conversion lever 5
1 rotates counterclockwise in FIG. Conversion lever 51
14, the protrusion 65 of the conversion lever 51 pushes up the shaft 66 mounted on the auxiliary lever 55, and the auxiliary lever 55 rotates counterclockwise in FIG. 15. The lid lever 53, which is engaged with the auxiliary lever 55 through the shaft 54, also rotates counterclockwise in FIG.
leave it open. FIGS. 16 and 17 are a plan view and a front view showing the state shown in FIG. 15. As shown in FIGS. 16 and 17, when the small tape cassette is installed in the device, the shaft 9 of the small tape cassette holder 10
A gear 91 rotatably supported on the tape cassette 58 meshes with a gear portion 96 formed on a take-up reel stand 92 for standard tape cassettes, so that a take-up motor 93 integrated with the take-up reel stand is used to move the small tape cassette 58. The magnetic tape inside can be wound up. At this time, the supply reel knob (not shown) in the small tape cassette 58 is directly engaged with the supply reel stand 94 for standard tape cassettes, and is driven by the supply motor 95 integrated with the supply reel stand 94. Can be rolled up.

In FIG. 15, when the drive motor 33 further rotates to drive the cam gear 30 counterclockwise, the slide lever 47 further slides to the right in FIG. However, the slide lever 45 does not move because the small tape cassette 58 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 45 are separated, 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.

At this time, the standard tape cassette holder 7 also moves from the position shown in FIGS. 90-10 to the position shown in FIG. 15, thereby closing the front door 141 and opening the opening of the shutter 67 for inserting the small tape cassette. cover. FIG. 18 shows the external appearance in this state, and the inside of the apparatus cannot be seen from the cassette insertion slot 3, resulting in an excellent external appearance.

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

Figure 15 shows a state in which a small tape cassette is being used, and from this state the cassette eject button 97 shown in Figure 8 is pressed.
When is pressed, the drive motor 33 rotates to rotate the cam gear 30 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. 13. In the state shown in FIG. 13, the user can grasp a portion of the small tape cassette 58 protruding from the device 1 and take it out of the device. If it is desired to continue using the small tape cassette, a new small tape cassette can be inserted into the apparatus in the state shown in FIG. 13, and the tape cassette can be used again as described above.

If you wish to stop using the small tape cassette and use a standard tape cassette, press the tape cassette selection button 98 shown in FIG. 8, and the operation changes from the standard tape cassette standby state to the small tape cassette standby state described above. By performing the reverse operation, the state shown in FIG. 10 changes to the state shown in FIG. 2, and the standard tape cassette can be used.

Effects of the Invention As described above, the present invention has 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 first tape cassette that holds the standard tape cassette inserted from the cassette insertion slot. holding means;
a second holding means for holding a 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; a first moving means for reciprocating the first holding means between a first position where the tape cassette is inserted into the holding means and a second position where the standard type tape cassette is mounted on the tape drive means; Insert the small tape cassette from the third position that does not interfere with the movement of the tape cassette and the second position from the cassette insertion slot.
selectively moving the second holding means between a fourth position in which the small tape cassette is inserted into the holding means and a fifth position in which the small tape cassette is mounted on the tape cassette drive means; a second moving means for moving the second holding means to the third position when the second holding means is attached to or detached from the tape drive means; a covering means that substantially covers a portion of the second holding means that does not face the small tape cassette insertion portion; and a covering means that substantially covers the cassette insertion opening when the first holding means is in the first position and the second position; There are two types of tape cassettes: a standard type tape cassette and a small tape cassette. A tape cassette can be installed in a magnetic recording/reproducing device simply by inserting the desired tape cassette into the cassette insertion slot of the device, without using a small tape cassette adapter as in the past.

Furthermore, since the insertion opening surface means is provided, the opening of the cassette insertion opening can be used not only when a standard tape cassette is in standby mode or when it is used when attached to the device, but also when a small tape cassette is used when it is attached to the device. Since the internal mechanism is hidden from view, it has an excellent appearance, and it is highly reliable because it is less likely to be penetrated by foreign matter such as chips.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the external appearance 1 of a standard type tape cartridge standby state in an embodiment of the magnetic recording/reproducing apparatus of the present invention;
Figure 2 is a side view of the main part showing the standard type tape cassette standby state, Figure 3 is a front view of the main part showing the standard type tape cassette standby state, and Figure 4 is the main part showing the standard 34 type tape cassette standby state. A plan view, FIG. 5 is a side view of the main part showing a state in which the standard tape cassette is inserted into the device, and FIG. 6 is a side view of the main part showing one mode when the standard tape cassette is attached to or removed from the device. Fig. 7 is a side view of the main part showing the standard tape cassette installed in the device, Fig. 8 is a perspective view showing the external appearance of the small tape cassette in the standby state, and Fig. 9 shows the small tape cassette from the standby state of the standard tape cassette. FIG. 10 is a side view of the main part showing an aspect of transitioning to the cassette standby state, FIG. 10 is a side view of the main part showing the small tape cassette standby state, and FIG. 11 is a small tape cassette (
FIG. 12 is a front view of the main parts showing the device state; FIG. 12 is a plan view of the main parts showing the small tape cassette standby state; FIG. 13 is a side view of the main parts showing the small tape cassette inserted into the device;
Figure 4 is a plan view of the main part showing the state in which the small tape cassette is inserted into the device, Fig. 15 is a side view of the main part showing the state in which the small tape cassette is installed in the device, and Fig. 16 is a plan view of the main part showing the state in which the small tape cassette is installed in the device. Main part plan view showing the state in which the
The figure is a front view of the main parts showing the state in which the small tape cassette is installed in the device, Figure 18 is a perspective view showing the external appearance with the small tape cassette installed in the device, and Figure 19 is the opening of the front cover of the small tape cassette. FIG. 20 is a cam line diagram of the first grooved cam portion and the second grooved cam portion formed on the cam gear 30, and FIG. 21 is a perspective view showing the external appearance of a conventional magnetic recording/reproducing device. , FIG. 22 is a side view of a main part showing a tape cassette loading mechanism of a conventional magnetic recording and reproducing apparatus, and FIG. 23 is a side view of a main part showing a standby state of a small tape cassette in a conventional magnetic recording and reproducing apparatus. 1...Magnetic recording and reproducing device, 2...Front panel, 3...Tape cassette insertion slot, 4...
...Substrate, 56...Vertical support plate, 7...
...Standard tape cassette holder, 10...
- Small tape cassette holder 30... Cam gear, 39... Drive arm, 51... Conversion lever 53... Lid ake lever 58...
...Small tape cassette, 63...Top plate, 67
... Shutter 87 ... Guide member,
89...Standard tape cassette, 92...
... Take-up reel stand, 95... Supply reel stand,
131... Drive arm, 134... Locking lever 140... Display unit, 141...
・Front door.

Claims (1)

[Claims] a cassette insertion port 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 port; a second holding means for holding the inserted small tape cassette; a tape driving means for driving the standard tape cassette or the magnetic tape in the small tape cassette; and a second holding means for holding the inserted small tape cassette; a first position for reciprocating the first holding means between a first position for inserting the standard tape cassette into the first holding means and a second position for mounting the standard tape cassette on the tape drive means;
a third position that does not interfere with the movement of the standard tape cassette by the first moving means; and a fourth position that inserts the small tape cassette into the second holding means from the cassette insertion slot. selectively moving the second holding means to a fifth position where the small tape cassette is mounted on the tape cassette driving means;
a second moving means for moving the second holding means to the third position when the standard tape cassette is attached to or detached from the tape drive means by the moving means;
a covering means that substantially covers a portion of the cassette insertion opening that does not face the small tape cassette insertion portion of the second holding means when the second holding means is in the fourth position; retaining means are arranged in the first position and in the second position.
an insertion port door that substantially covers the cassette insertion port when the second holding means is in the fifth position, and substantially covers a portion of the cassette insertion port that is not covered by the covering means when the second holding means is in the fifth position; A magnetic recording and reproducing device comprising means.