JPH03260948A - 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 is started, and a cam gear 30 is driven to rotate clockwise. Consequently, the standard tape cassette holder 7 is guided by guide grooves 8 and 9 and 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 driving motor 33 is turned, and the cam gear 30 is driven to rotate anticlockwise. Consequently, the small size tape cassette holder 10 is guided by guide grooves 11 and 12 to load the small size tape cassette into the device. A guide member 87 for the holder 7 is formed on an upper surface of the holder 10 in this device. The member 87 is at approximately the same height as a bottom surface of the holder 7.

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. 59193502
There is a magnetic recording/reproducing device as shown in the above publication.

The above-described conventional magnetic recording/reproducing device will be described below with reference to the drawings.

FIG. 19 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 tape cassette in the device.

In FIGS. 19 to 21, 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 111.
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. 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 1.
19, the guide groove 12 of the vertical support plate 120
You will be guided to 1,122°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 cassette holder 11 in positions A in FIG.
6. Adapter 12 for small tape cassette
The rack gear 11 formed on the side plate 117 is moved by a drive motor (not shown) through gears 125, 126 and a pinion 119.
8 is driven to move the guide grooves 121, 122, 123 between the position A shown in FIG. The tape cassette is guided through the small tape cassette storage and removal 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, 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, the small tape cassette adapter stored outside the device must be inserted into the device, and then the small tape cassette must be inserted into the small tape cassette insertion slot at the top of the device. There was an annoying problem.

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 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; The tape cassette is configured to include a covering means that substantially covers the portions that are not opposed to each other, and a guiding means that is integrally formed with the covering means and guides the small tape cassette when it is inserted into or removed from the second holding means. It is something.

Effect of the Invention With the above-described configuration, when a standard tape cassette is used, the tUIA tape cassette holder can be inserted into the standard tape cassette 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 holding position and the position where it is installed in the device, so simply inserting the standard tape cassette into the cassette insertion slot will load it into the device, and the time required to install it will also be shorter than the standard tape cassette. It is equivalent to a device dedicated to 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.

Furthermore, since the covering means is provided with a guide means for the small tape cassette, it is possible to smoothly insert and take out the small tape cassette into the small tape cassette holder, and when ejecting the small tape force cent from the device, It also serves to guide the small tape cassette so that it can be ejected from the tape insertion slot even if it is displaced from the small tape cassette holder.

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 described. Vertical support plates 5 and 6 arranged approximately perpendicularly on the left and right sides of the substrate 4 of the device have guide grooves 8 and 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 has a rack section 15, and the rack section 15 has a pinion gear 1 rotatably supported on a shaft 16 mounted 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 the shaft 20, 2.1 is engaged with the slide lever 22 that is slidably supported on the shaft 20.21. It is engaged with the lever 24 via a tension spring 25. Note that the biasing force of the tension spring 25 is not generated in the state shown in FIG. 2 because the hole 26 of the slide lever 22 and the protrusion 27 of the slide lever 24 are in contact with each other. The cam follower 28 mounted on the slide lever 24 is connected to the shaft 2 mounted on the vertical support plate 5.
The cam gear 30 is engaged with a first groove 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 has a first grooved cam portion and a second grooved cam portion as shown in the cam diagram in FIG. 17. The state of the device shown in FIG. 2 is a state where the cam gear 30 in the cam diagram of FIG. 170 has a rotation angle of 0°. The rotation angle of the cam gear 30 in FIG. 17 is + when the cam gear 30 rotates clockwise in FIG. 2, and − when the cam gear 30 rotates counterclockwise in FIG. Therefore, the drive motor 33
When the cam gear 30 rotates forward and backward at a rotation angle of 0° to 300°, the standard tape cassette holder 7 reciprocates between the position shown in FIG. 2 and the position shown in FIG. That's what I do.

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

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, which is slidably supported by the shafts 43 and 44, is engaged with the shafts 43 and 44.

The slide lever 45 has a shaft 4 mounted on the vertical support plate 5.
It engages with a slide lever 47 slidably supported by 3 and 44 via a tension spring 99. Slide lever 4
5 because the projection 48 is in contact with the hole 49 of the slide lever 47. The biasing force of the tension spring 99 does not work in the state shown in FIG. Slide lever 47
The cam follower 50 installed in the cam gear 30 has a second grooved cam portion (not shown) formed on a surface opposite to the surface forming the first grooved cam portion (not shown) of the cam gear 30. They are slidably engaged. As mentioned above, the cam gear 30 is configured to be rotationally driven by the drive motor 33, and the second grooved cam portion (not shown) has a stroke as shown in FIG. Gear 30 has a rotation angle of -300
When rotated between ' and 0 degrees, 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.

Next, a description will be given of a locking means for positioning and locking the small tape cassette holder 10 in the small tape cassette standby state shown in FIG. 9, and its driving means. 8th
9, the drive arm 131 is rotatably supported on a shaft 130 that is set on the vertical support plate 5, and the drive arm 131 is rotatably supported on a shaft 130 that is set on the vertical support plate 5.
Locking lever 13 slidably supported by 32 and 133
It is slidably engaged with the protrusion 138 of No. 4. A tension spring 137 is tensioned between the spring hook portion 135 of the locking lever 134 and the spring hook portion 136 of the vertical support plate 5.
The locking lever 134 is urged upward in the figure. Therefore, a clockwise rotational force is acting on the drive arm 131 in FIG. 8. When the standard tape cassette holder 7 moves to the position shown in FIG. 9, the drive arm 131 is rotationally driven in the counterclockwise direction in FIG.
The locking lever 134, which is engaged with the groove 139 and the protrusion 138, 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, the conversion lever 51 is rotatably supported on a shaft 52 mounted on the small tape cassette holder 10. As shown in FIG. In FIG. 17, 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 the small tape cassette holder 10, and is supported by a torsion spring (not shown). ) is biased downward in the Y direction. The auxiliary lever 55 is biased to rotate in the downward direction of X by a torsion spring (not shown).
The shaft 54 is the protrusion 57 of the small tape cassette holder 10.
It is locked in the position shown in FIG. 17 by coming into contact with it. Therefore, as shown in FIG. 13, when the small tape cassette 58 is inserted into the small tape cassette 4 set holder 10, the lid holder lever 53
The protrusion 61 is adapted to fit between the front cover 59 and the main body 60 of the small tape cassette 58. When the small tape cassette holder 10 moves to the position shown in FIG.
When the protrusion 62 of the conversion lever 51 engages with the lid holder 64 formed on the top plate 63 for opening the front lid 100 of the standard tape cassette 89, and the small tape cassette holder 10 moves to the position shown in FIG. , the conversion lever 51 rotates counterclockwise in FIG.
Rotate counterclockwise as shown in Figure 4. As the auxiliary lever 55 rotates, the lid lever 53 also rotates counterclockwise in FIG. 14, opening the front lid 59 of the small tape cassette 58 as shown in FIG.

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 engaged with the guide grooves 73, 7475.76 formed in the front panel 2.
A tension spring 8182 is tensioned between 7.78 and the spring hook 79.80 of the front panel 2. shutter 67
The protrusions 83 and 84 of 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. 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. FIG. 7 shows the external appearance in the state shown in FIG. 10, in which a portion of the tape cassette insertion slot 3 that is unnecessary when inserting a small tape cassette is 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.

Furthermore, a small tape cassette guide means integrated with the shutter 67 will be explained.

The small tape cassette guide 141 is integrally constructed with the shutter 67, and its protrusion 142 is inserted into the notch 143 of the bottom plate 144 of the small tape cassette holder 10, and the height of the top surface of the protrusion 142 is small. It has approximately the same height as the bottom plate 144 of the tape cassette holder 10, and guides the small tape cassette to the small tape cassette holder 10 when inserting the small tape cassette from the insertion slot 3, and also guides the small tape cassette to the small tape cassette holder 10 when ejecting the small tape cassette from the device. It is designed to guide the small tape cassette so that it can be smoothly ejected from the insertion opening 3 to the outside of the apparatus.

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

In FIG. 2, the guide member 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 into the standard tape cassette holder 7.

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

As shown in FIG. 10, 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 or 1 mesh. When the small 78 tape cassette holder 10 moves to the position shown in the side view of FIG. 14 and the top view of FIG.
As shown in the figure and FIG. 16, the winding is carried out by the rotation of the winding remoter 93, which is integrated with the winding reel stage 92 and meshes with a gear part 96 formed on the winding reel stage 92 for standard tape cassettes. A side reel hub (not shown) allows the magnetic tape to be wound.

Each operation will be described 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 03.
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 rotated counterclockwise. As the gear 18 rotates counterclockwise, the pinion gear 17 that meshes with the gear 18 rotates clockwise.
The standard type tape cassette holder 7, which is engaged with the rack part 15, is guided by the guide grooves 8 and 9 and moves to the right in FIG. 5 until it reaches the state shown in FIG. Attach 89 to the device. At this time,
The front lid 100 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. 6, the drive motor 33 rotates and drives the cam gear 30 to rotate counterclockwise. Therefore, the standard type tape cassette holder 7 is moved from the position shown in FIG. 6 to the position shown in FIG. 5 by performing the operation opposite to the above-described standard type tape cassette mounting operation. In the state shown in FIG. 5, the user can grasp the part of the standard tape cassette 89 that protrudes 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 30 to rotate 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 it rotates from a rotation angle of 0° in a negative direction in FIG.
The second grooved cam part (not shown) has a stroke, and the slide lever 47 that is slidably engaged with the second grooved cam part (not shown) and the cam follower 50 has a stroke. Slide to the right in the figure. Slide lever 47
The slide lever 45, which is in contact with the hole 49 and the protrusion 48, also slides to the right in FIG. Rotate. Therefore, the drive arm 39 that is engaged with the gear 422 and the gear portion 41 rotates clockwise, and moves the small tape cassette holder IO, which is engaged with the protrusion 36 in the groove 40, along the guide groove 11 into the eighth position.
Move it to the position shown in the figure. At this time, as shown in FIG.
The tension springs 81 and 84 are pressed against the protrusions 83 and 84 by the
When the small tape cassette holder 10 moves to the position shown in FIG. 8, the shutter 67, which is in the position shown in FIG. Guided to .75°76,
Move to the position shown in FIG. FIG. 7 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. 8, 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 drive arm 131 is rotated counterclockwise in FIG. 9 by the protrusion 13 of the standard tape cassette holder 7, and the locking lever 13 engaged with the drive arm
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 120°, 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 45 and the hole 49 of the slide lever 47 are separated, and the slide lever 45 is biased to the left in FIG. 9 by the tension spring 99. . The biasing force of the slide lever 45 is applied to the drive arm 3 via the gear 42.
9 in the counterclockwise direction in FIG. 9 to press the protrusion 36 of the small tape cassette holder 10 against the locking lever 134. Therefore, the small tape cassette holder 10 is the ninth
In the state shown in the figure, the small tape cassette is positioned in a 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.

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 guide 141 and inserted into the small tape cassette holder 10.

FIGS. 12 and 13 show the state in which the small tape cassette 58 is inserted into the device in the small tape cassette standby state. As shown in FIGS. 12 and 13, 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. 12, when the small tape cassette detection means (not shown) detects that the small tape cassette 58 has been inserted to a predetermined position in the small tape cassette holder 10, the drive motor 33 rotates and the cam gear 30 to 12th
Rotate further counterclockwise from the state shown in the figure. The fact that the cam gear 30 further rotates in the counterclockwise direction from the state shown in FIGS.
It is a further rotation in the negative direction from 0, and the second
The grooved cam portion (not shown) has a stroke. Therefore, the second groove cam portion (not shown) and the cam follower 5
The slide lever 47 which is slidably engaged at the position 0 is the first
The slide lever 45 is further slid to the right from the position shown in FIG. 2, and the slide lever 45, which is in contact with the hole 149 of the slide lever 47 with the protrusion 48, is also slid to the right in FIG. By moving the slide lever 45 to the right in FIG. 12, the rack portion 4 of the slide lever 45
The gear 42 that is meshed with the gear 6 rotates counterclockwise, and the drive arm 39 that is meshed with the gear 42 and the gear portion 41 rotates counterclockwise.
From the position shown in Figure 2, rotate further clockwise. Therefore, the protrusion 36 can slide freely into the groove 40 of the drive arm 39.
The small tape cassette holder 10 engaging the small tape cassette 5 is guided by the guide groove 11.12.
While holding 8, move further rightward from the position shown in FIG. 12 and move to the position shown in the plan view of FIG. 15. At this time, the projection 62 of the conversion lever 51 engages with the lid holder 64 for opening the front lid 100 of the standard tape cassette 89 formed on the top plate 63, and the small tape cassette holder 10 moves to the position shown in FIG. is guided by the guide grooves 11 and 12 in the downward direction in FIG.
Rotate counterclockwise as shown in Figure 4. The conversion lever 51 is the 13th
By rotating the conversion lever 5 in the counterclockwise direction as shown in the figure,
Since the projection 65 of 1 pushes up the shaft 66 mounted on the auxiliary 1/bar 55, the auxiliary lever 55 rotates counterclockwise in FIG. FIG. 14 Rotate counterclockwise to open the front lid 59 of the small tape cassette 58 as shown in FIG. FIGS. 15 and 16 are a plan view and a front view showing the state shown in FIG. 14. Figure 15 and 1
As shown in FIG. 6, 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 attached to a take-up reel stand 92 for standard tape cassettes. A take-up motor 93 is integrated with the take-up reel stand because it meshes with the gear portion 96.
The magnetic tape in the small tape cassette 58 can be wound up. At this time, the supply reel hub (not shown) in the small tape cassette 58 is directly engaged with the supply reel stand 94 for standard tape cassettes, and the supply motor 95 integrated with the supply reel stand 94 takes up the winding. be able to.

In FIG. 14, 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.

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 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. 12. In the state shown in FIG. 12, 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, 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 wish to stop using the small tape cassette and use the standard tape cassette, press the 0 tape cassette selection button 98 shown in FIG. 7 to change from the standard tape cassette standby state described above to the small tape cassette standby state. By performing the reverse operation, the state shown in FIG. 9 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 pushed into the holding means and a second position where the standard 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 is integrally formed with the covering means and that guides when the small tape cassette is inserted into or removed from the second holding means. By having a guide means for guiding two types of tape cassettes, a standard type tape cassette and a small tape cassette, it is possible to insert the tape into the cassette insertion slot of the device without using an adapter for small tape cassettes as in the past. Simply insert the cassette and it can be attached to a magnetic recording/playback device.

Furthermore, since a guide means for the small tape cassette is provided in the covering means, it is possible to smoothly insert and take out the small tape cassette into the small tape cassette holder, and when ejecting the small tape cassette from the device, It also serves to guide the tape cassette so that it can be ejected from the tape insertion slot even if it is displaced from the small tape cassette holder.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the external appearance of an embodiment of the magnetic recording/reproducing apparatus of the present invention when a standard tape cassette is in standby mode; FIG. 2 is a side view of main parts showing the standard tape cassette standby state;
Fig. 3 is a front view of the main part showing the standard tape cassette standby state, Fig. 4 is a plan view of the main part showing the standard tape cassette standby state, and Fig. 5 shows the state in which the standard tape cassette is inserted into the device. Figure 6 is a side view of the main parts showing the state in which the standard tape cassette is installed in the device, Figure 7 is a perspective view showing the external appearance of the small tape cassette in standby state, and Figure 8 is the standard tape cassette. A side view of a main part showing an aspect of transition from a 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. 15 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 the 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 30, FIG. 19 is a perspective view showing the external appearance of a conventional magnetic recording/reproducing device, and FIG. 20 is a conventional FIG. 21 is a side view of a main part showing a tape cassette loading mechanism of a conventional magnetic recording/reproducing apparatus, and FIG. 3 4 1...Magnetic recording and reproducing device, 2...Front panel, 3...Tape cassette insertion slot, 4...
... Board, 5, 6... Vertical support plate, 7...
Standard tape cassette holder IO...Small tape cassette holder 30...Cam gear, 3
9... Drive arm, 51... Conversion lever 53... Lid lever 58...
Small tape cassette, 63...Top plate, 67...
・・・Nyatta 87・・・Guide member, 89
...Standard tape cassette, 92...
Take-up reel stand, 95... Supply reel stand, 13
1... Drive arm, 134... Locking lever 140... Display unit, 141 Small tape cassette guide.

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; A magnetic recording and reproducing apparatus comprising a guiding means integrally constructed and guiding the small tape cassette when it is inserted into or removed from the second holding means.