JPH0510298Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an adapter for a small tape cassette, which is used, for example, when loading a small tape cassette smaller than a standard type into a standard type recording/playback device. This adapter relates to a small-sized tape cassette adapter that stores a small-sized tape cassette containing two different types of magnetic tape, such as a standard magnetic tape and a high-performance magnetic tape, in a storage part to determine which cassette it is.

(Prior Art) In recent years, the performance of magnetic tapes and magnetic heads has improved, and there has been a demand for VTRs with higher resolution and higher picture quality. For this reason, for example, instead of the standard magnetic tape (standard tape) using iron oxide magnetic material used in current home VTRs, high-performance magnetic tape (high performance tape) such as metal, vapor deposition, barium ferrite, etc. is used. Various high-quality modes have been considered in which recording is performed on this magnetic tape at a carrier wave frequency that is sufficiently higher than the carrier wave frequency (carrier) of the standard mode used in current home VTRs.

Therefore, the applicant company previously proposed a magnetic recording/reproducing device for using the above-mentioned standard mode and high-quality mode in a single VTR.

This product consists of a standard type tape cassette that stores standard tape, and a high performance tape cassette that has almost the same shape as the standard type that stores high performance tape.
When the tape cassette is installed in a VTR, the device automatically determines which tape cassette it is by detecting the cassette identification hole formed in the high performance tape cassette. This device automatically switches to the standard mode for standard tapes and to the high-quality mode for high-performance tapes.
This eliminates the trouble of having to distinguish between different tape cassettes one by one for the operator.

On the other hand, it is also well known that small tape cassettes smaller than the above-mentioned standard type tape cassettes are often used.

When this small tape cassette is used in a standard type recording/reproducing apparatus, an adapter is required to convert the small tape cassette into a standard type tape cassette. This adapter is
If the tape path of a small tape cassette is formed the same as the tape path of a standard type tape cassette, it may simply serve as a housing. However, since it is the same as the tape path of a standard type tape cassette, it is not that small. Therefore, in order to make a small tape cassette substantially smaller, for example, the distance between the supply reel and take-up reel in a small tape cassette must be set to a standard type so that the tape path of the small tape cassette is different from the tape path of the small tape cassette. By making the small tape cassette smaller and using an adapter having approximately the same external shape as a standard type tape cassette, the tape path of the small tape cassette can be applied to a standard type recording/reproducing device. Must be converted.

The present applicant has developed a compact tape cassette that is substantially smaller than the standard type that has previously achieved this purpose, and a system that enables recording and playback using a standard recording and playback device that uses this small tape cassette and the standard tape cassette. The company filed Utility Model Application No. 10633/1983 for an adapter for small tape cassettes (hereinafter sometimes referred to as the adapter for short).

That is, the small tape cassette loaded in the storage part of this adapter can form a tape path that is substantially the same as that of a standard type tape cassette by the internal tape guiding means, and
It is configured to rewind the drawn out tape into a small tape cassette.

(Problem to be solved by the invention) However, as mentioned above, the above adapter uses a small tape cassette containing a standard tape made of iron oxide magnetic material and a high performance tape made of metal, vapor deposited, barium ferrite, etc. Currently, there is no function to distinguish between high-performance small tape cassettes.

Therefore, when attaching two types of small tape cassettes containing these two types of magnetic tapes to a standard type recording/playback device capable of recording and playing in standard mode and high image quality mode using the above adapter, Since the shapes of these small tape cassettes are almost the same, it is necessary to carefully determine whether a small tape cassette for standard tape is a high-performance small tape cassette containing high-performance tape before switching the mode of the device. No. For this reason,
For example, even though it is a small tape cassette containing standard tape, if a user makes a mistake such as setting the high image quality mode to record, and then plays it back, there is a risk that the user may mistake it for a malfunction in the device. There are problems such as.

Also, when recording, even high-performance small tape cassettes may be recorded in standard mode, so
During playback, it is difficult to tell whether or not the tape was recorded in high-quality mode just by looking at the small, high-performance tape cassette, leading to problems such as confusion in mode switching operations. Furthermore, there is a risk that a high-performance compact tape cassette recorded in high-definition recording mode may be played back in standard mode, or that recorded in standard mode may be played back in high-definition mode, each of which does not fully utilize the performance of the magnetic tape. There were various problems such as not being able to pull out and play.

(Means for Solving the Problems) The present invention has been made to solve the above problems, and has substantially the same external shape as a standard type tape cassette, and has an upper case, a lower plate, and The adapter housing is made up of a front cover that can be opened and closed by rotation, and inside the adapter housing there is a standard small tape cassette that stores a standard tape that can be recorded in a standard recording mode with a predetermined carrier frequency, and an identification section that is formed in substantially the same shape as the tape cassette and identifies that a high-performance magnetic tape that can be recorded in a high-quality recording mode with a high carrier frequency set higher than the standard recording mode is stored; A small high-performance tape cassette with a tape cassette formed on the back side is provided. In addition to forming a prevention groove, a detection hole is provided in the vicinity of one end of the erroneous insertion prevention groove, and a detection hole is provided at one end to determine whether the small tape cassette stored in the storage section is a standard small tape cassette. A standard or high-performance small tape is provided with a detection part for detecting whether it is a high-performance small tape cassette, and a detection means having an opening/closing part for opening and closing the detection hole at the other end, and the standard or high-performance small tape is installed in the storage part. An adapter for a small tape cassette having a tape drawing means for drawing out the tape from the cassette to form approximately the same tape path as a standard type tape cassette, wherein the small tape cassette stored in the storage section is a high performance small tape cassette. If the high-performance small tape cassette is detected, the identification part of the high-performance small tape cassette is detected by the detection part provided at one end of the detection means, and the detection hole is opened by the opening/closing part provided at the other end, and the high-quality recording mode is activated. When the small tape cassette stored in the storage section is a standard small tape cassette, the detection hole is opened by a detection section provided at one end of the detection means and an opening/closing section provided at the other end. The present invention provides an adapter for a small tape cassette, characterized in that it is configured to be set in a state in which recording in a standard recording mode is possible when the adapter is in a closed state.

(Example) Fig. 1 is a schematic enlarged plan view showing an embodiment of the small tape cassette adapter according to the present invention with the upper case removed, and Figs. 2 and 3 show the main components. 2 is a longitudinal side view showing the gear train of the gear group of the drive system of the tape loading mechanism taken along line - in Fig. 1, and Fig. 3 is a longitudinal side view showing the reel drive system taken along line - in Fig. 1. FIG. 4 is an external perspective view of the small tape cassette adapter according to the present invention, and FIG. 5 is a bottom view of FIG. 4.

1, 4, and 5, the tape cassette adapter A according to the present invention has an external shape that is substantially the same as that of a standard type tape cassette,
The adapter housing 1 is made up of an upper case 2, a lower plate 3, and a rotatable front lid 4 that is tensioned by a coil spring and that closes the opening where the tape path is formed.
is formed, and inside it there are figures 7 to 9.
Small tape cassettes B, B ₁ , B ₂ as shown in the figure
A storage portion C corresponding to the external shape of the container is provided. Reference numeral 5 designates a through hole drilled in the lower plate 3, through which the small tape cassette B stored in the storage section C can be taken out by pushing up the lower surface of the cassette with a finger or the like from below. Also,
As shown in FIG. 5, the lower plate 3 is provided with a groove 3a for preventing incorrect insertion in a direction perpendicular to the insertion direction of the adapter A (in a direction parallel to the front surface of the front cover 4) at a position away from the front cover 4. A through hole 3b is formed near the left end of the erroneous insertion prevention groove 3a.

The small tape cassette B is as shown in Fig. 7.
A cassette housing 6 formed by fitting the lids of an upper half 6a and a lower half 6b, and a housing rotatably provided on the front side of the cassette housing 6 and normally closed to protect the magnetic tape inside. 7 and its frame is made up of.

Reference numerals 8 and 9 denote a take-up tape reel and a supply tape reel arranged in the frame, and one take-up tape reel 8 has an output gear of a second gear group E in an adapter A, which will be described later. A gear 10 is provided which meshes and drives the gear to rotate.

FIGS. 8 and 9 are rear views of small tape cassettes B ₁ and B ₂ containing two types of magnetic tapes,
In contrast to the standard small tape cassette _B1 , which stores standard magnetic tape made of iron oxide magnetic material used in home VTRs, it stores high-performance magnetic tape (high-performance tape) made of metal, vapor-deposited, barium ferrite, etc. A recess (identification part) S for identifying the cassette is formed on the back side of the high performance small tape cassette _B2 on the right side of the lower half 6b of the cassette housing 6.

Here, the configuration of the small tape cassette adapter (hereinafter referred to as the adapter) A according to the present invention will be explained as follows.
The tape loading operation and the tape unloading operation will be explained with reference to FIGS.

That is, this adapter A is configured so that a tape loading operation and a tape unloading operation are performed by a built-in motor 11 via a first gear group D and a second gear group E. The first gear group D and the second gear group E are arranged between the upper case 2 and an auxiliary plate 67 disposed close to the lower plate 3, respectively.

To explain the tape loading operation in conjunction with FIG. 2, when the motor 11 rotates forward, the driving force of the motor 11 passes through the worm 12 on this shaft to the worm wheel 13 which becomes the input gear of the first gear group D.
transmitted to. This worm wheel 13 is constantly pressed by a coil spring 16 so as to be integrally connected to a gear 15 via a friction plate 14. The rotational force of the gear 15 is transmitted to the gear 17, and then to the gear 20 at the lower part of the gear structure 19 via the gear 18 integrated therewith, and the gear structure 19 is rotationally driven in the clockwise direction.

The upper part of the gear structure 19 has a protrusion 2 on a part thereof.
1 is provided, and a recess 23 for manual operation is formed on the top surface of the adapter A and faces the top surface of the adapter A. Therefore, the recess 23
Loading and unloading is also possible by inserting a coin or the like inside and turning the gear structure 19 independently. Gear 2 of gear structure 19
0 rotation causes the special chain 27 connected to the pin 20a of this gear 20 to be wound up.
The loading arm 25 rotates clockwise about the shaft 26 to the position shown by the two-dot chain line in FIG.

On the other hand, the gear 24 that meshes with the gear 22 of the gear structure 19 is rotated counterclockwise, and a pair of upper and lower cams 28a and 28b provided on the gear 24 is applied with a spring. The pair of upper and lower lock arms 29a and 29b rotate in the same direction as the loading arm 25 against the force of the spring to the position shown by the two-dot chain line in FIG.
Retains 0.

Also, due to the rotation of the loading arm 25,
At the bottom of the operation knob 57, which will be described later, and at the adapter A.
The connecting rod 31 arranged in the width direction moves in the _X1 direction, and the other connecting rod 33, which moves up and down via the bell crank 32, moves in the _Y1 direction (upward).
Due to the movement of this connecting rod 33, the cam 3 integrated with this
4 is transmitted to another loading arm 35, and the loading arm 35 rotates counterclockwise in FIG. Further, the tip cam portion 33a of the connecting rod 33 holds the pole 39 of the loading arm 35 by rotating the lock lever 37 counterclockwise about the shaft 38, which is biased clockwise by a spring.

In addition, 58 is a substantially triangular protrusion piece that cooperates with the connecting rod 33, and when the connecting rod 33 moves upward ( _Y1 direction), it is rotated and stored inside the adapter A. During unloading, which will be described later, as shown by the solid line in FIG. 1, the tape cassette B protrudes from the side surface of the adapter A and functions as a stopper to prevent the tape cassette B from being inserted into the apparatus in the unloading state.

The magnetic tape 40 of the small tape cassette B whose poles 30 and 39 are stored in the storage section C by the rotation of the pair of loading arms 25 and 35 mentioned above.
is pulled out, a tape loading operation is performed within adapter A, and a tape path 41 corresponding to the front side tape path of a standard type tape cassette is formed.

Further, as the gear structure 19 rotates, the movable pieces of the switches SW4 and SW5 are switched by the action of the protrusion 21 on the gear 22, as will be described later.

Also, when loading a tape, Figs. 2 and 3
As shown in the figure, a one-way clutch 43 having a well-known mechanism is interposed between the gear 17 of the first gear group D and a coaxial gear 42, which is pressed by a coil spring 44 from the gear 42 side. During tape loading, this clutch 43 acts in the escape direction between the gear 18 and the gear 42, cutting off the power to a gear 52 on a tension arm 47 described later, and during tape unloading, it transmits the rotational force of the gears 17 and 18 to the gear 42. In other words, this one-way clutch 43 is intended to obtain an appropriate tape tension by utilizing the rotational force of the second gear group E when the magnetic tape 40 is pulled out from the small tape cassette B during the tape loading operation.

Also, the gear 4 on the tension arm 47
9, 52 is the first one at the end of tape loading.
Since it is in mesh with the second gear group D and E at the same time, it is possible to prevent the tape from becoming excessively loose.

Next, the tape unloading operation will be explained.

When the motor 11 reverses, the gear structure 19 rotates counterclockwise via each gear of the first gear group D, and the lock arms 29a, 2 rotate accordingly.
9b rotates counterclockwise to release the lock of the loading arm 25, and the timing is slightly different from this rotation, and the loading arm 25 rotates counterclockwise and comes into contact with the stopper pin 45.
It comes to rest at the position shown by the solid line in Figure 1. By the rotation of the loading arm 25, the connecting rod 31 connected thereto is taken in the direction of arrow _X2 , and the other connecting rod 33 is moved in the _Y2 direction (downward) via the bell crank 32. This causes the lock arm 37 to rotate counterclockwise due to its self-returning force, and the loading arm 3 that cooperates with this to rotate.
5 is released, the loading arm 35 rotates clockwise along with the operation of the cam 34 and comes to rest at the position shown by the solid line in FIG.

On the other hand, as described above, the rotational force of the gear 17 of the first gear group D is transmitted to the gear 42 via the unidirectional clutch 43, which has a fulcrum on the clutch shaft, and is supported by the spring 46. A gear 49 serving as an input gear of the second gear group E provided on the shaft 48 of the displaceable tension arm 47 to which rotational force is applied.
transmitted to. The gear 49 is pressed by a coil spring 51 via a friction plate 50 to drive a gear 52 which is integrally driven. The rotational force of the gear 52 is transmitted to the small tape cassette B via the gear 53a of the reel structure 53 and the reel drive gear 55 which is integrated with the gear 54.
Since the gear 10 is rotated, the winding-side tape reel 8 rotates in the tape winding direction. This results in
A magnetic tape 40 forming a tape path 41 is wound and stored in a small tape cassette B, and tape unloading is performed.

In addition, when unloading the tape, the motor 11
As described above, the gears 17 and 42 are simultaneously rotated by the unidirectional clutch 43, so that the rotation speed of the loading arm 25 driven by each gear via the gear 17 increases. and gear 4
2, the magnetic tape 40 is moved by relatively shifting the rotational speed of each gear that operates during the tape winding operation using the friction plate 50 inserted between the gear 49 and the gear 52. It will be wound into the small tape cassette B with appropriate tension.

Next, the configuration and operation of each part of the adapter A will be explained one by one by item.

(1) Tension arm mechanism A tension arm 47 having gears 49 and 52 supported on a shaft 48 has one end supported on a shaft 59 of a unidirectional clutch 43, as shown in FIGS. The other end is connected to the shaft 60 in adapter A.
It is rotatably supported at the end of a link 61 having a fulcrum. Further, this tension arm 47 is biased with clockwise rotational force by a coil spring 46 (shown in FIG. 3), and the gears 49, 52
As mentioned above, during loading and unloading, the gears 43 and 53 are always engaged with the gears 43 and 53, respectively. In other words, in this loading state, as described above, the unidirectional clutch 43
As a result, the power of the second gear group that drives gear 10 of cassette B is cut off. As a result, the tape is pulled out while resisting the frictional force of the friction plate 50 during loading, so that appropriate tension is applied to the tape when loading is completed. Further, during unloading, the second gear group E is rotated together with the first gear group by the action of the clutch 43, but the friction plate 50 between the gears 49 and 52 rotates the second gear group E together with the first gear group D. A relative speed is applied between the magnetic tape 41 and the second gear group E, so that the magnetic tape 41 is wound around the take-up tape reel 8 with an appropriate tension.

Further, the link 61 is provided with a projection 61a at a portion into which a reel brake release pin of a standard type cassette is inserted. Therefore, when the adapter A containing the small tape cassette B is loaded into a recording/reproducing device (not shown) in a loading state with a predetermined tape path formed, the brake release pin 62 (shown in FIG. 1) in the device is released. presses the protrusion 61a of the link 61 to displace (rotate) it clockwise, and also rotates the tension arm 47, which is pivotally supported by the link 61, counterclockwise. As the tension arm 47 rotates, the power between the first gear group D and the second gear group E that drives the take-up tape reel 8 of the cassette B is cut off, so that the tape running is not driven by the recording/reproducing device. No extra load is applied to the system, the magnetic tape 40 runs smoothly and stably, and good recording and reproducing conditions are maintained.

(2) Small tape cassette discrimination mechanism (shown in Figs. 1 and 6), which constitutes a part of the main part of the present invention. The arm 64 for discriminating the type of small tape cassette pivots on the link 61. The link 61 is coaxially supported by a shaft 60 and rotates relative to the link 61 while a torsion spring 69 is biased with rotational force in the counterclockwise direction. And this arm 64
has a protrusion 64a at one end near the pivot portion that can move forward and backward into a through hole (not shown) formed in the cassette storage section C at a position corresponding to the recess S of the high-performance small tape cassette _B2 ; A sliding piece 66 for opening and closing the through hole 3b of the lower plate 3 is locked via a pin 65 implanted at the other end. This sliding piece 66 moves in the Y ₁ and Y ₂ directions while being regulated by a guide portion 68 protruding from the upper case 2 and the auxiliary plate 67 . Further, the protrusion 64a is provided at a position corresponding to the recess S (identification part) of the high-performance small tape cassette _B2 shown in FIG. It is located at a position corresponding to the through hole 3b bored in the lower plate 3.

Therefore, when the high-performance small tape cassette _B2 shown in FIG. 9 is stored in the storage part C of the adapter A shown in FIGS. 4 and 5, the protrusion 64a of the arm 64
is the recess S on the back of the high-performance small tape cassette _B2 .
the sliding piece 6 as shown by the solid line in Figure 1.
6 to maintain the through hole 3b in an open state,
This adapter A is a high performance small tape cassette B ₂
automatically set for use. Furthermore, when a standard small tape cassette _B1 containing a standard tape without a recess on _the back as shown in FIG. When pressed, this arm 64 rotates clockwise about the shaft 60 against the elastic force of the torsion spring 69 as shown by the chain double-dashed line in FIG. Due to this rotation of the arm 64, the sliding piece 66 moves in the _Y2 direction in a restricted state, so that the through hole 3b formed in the lower plate 3 of the adapter A shown in FIG. 5 is closed. Adapter A is automatically set to correspond to the standard tape recording mode.

In this way, the small tape cassette adapter A according to the present invention can simply store different types of small tape cassettes B ₁ and B ₂ containing different types of magnetic tapes in the storage section C without distinguishing between them. It is possible to suitably correspond to a standard type recording/reproducing device having two types of recording modes, a standard mode and a high-quality mode.

Therefore, when using a small tape cassette of approximately the same shape with a standard type recording/playback device using adapter A, the user must either use a standard small tape cassette _B1 for standard tapes or a high-performance tape cassette containing high-performance tapes. It is easy to use because there is no need to carefully distinguish between the small tape cassettes B and ₂ and switch the mode of the device. Therefore, there is no possibility of making an erroneous operation, such as setting the high image quality mode to record even though the tape cassette is a small tape cassette containing standard tape.

Store this high-performance small tape cassette B ₂ in storage compartment C.
By storing the cassette detection switch in
SW ₁ is closed. After that, the operation knob 5 opens and closes the lid 56 by closing the lid 56.
7 presses a displacement member (not shown) to which an elastic displacement force is applied, and thereby a pair of switches SW2 and SW
Loading is started by pressing 3. Due to this loading, as described above, the loading arm 25 carries the connecting rod 31 in the _X1 direction, and the protrusion 21 of the gear 22 moves the switch SW4.
Press to finish loading.

(3) Motor drive mechanism A motor drive circuit (not shown) including switches SW1 to SW5 is built into the adapter A. The drive source for the motor 11 is built into the adapter A and is driven by a storage battery 63 (shown in FIG. 1) or the like.

In FIG. 1, a switch SW1 is a switch for detecting the storage state of the small tape cassette. When the small tape cassette B is loaded into the storage section C, this switch is pressed by the lever 70 and becomes conductive.

In Figure 1, switch SW2 and switch SW
3 is a pair of switches that detect the state of the lid part 56, specifically, switch SW2, switch
The movable pieces of SW3 are selectively switched when the lid part 56 is closed, and these also switch when the operating knob 57 is closed.
When the lid is opened and moved in the X ₁ direction, the displacement member is displaced upward and both switches SW2 and SW3
The movable pieces are selectively switched.

1 and 2, switches SW4 and SW5 are switches which detect the loading end and unloading end states, and are connected in parallel to the storage battery (power source) 63. That is, when the loading arms 25, 35 are in the position shown by the solid lines (when unloading is completed), switch SW4 is pressed by the protrusion 21 on the gear 22 of the gear structure 19 and is in the OFF state, and is turned on when the loading arms 25, 35 rotate clockwise from the position shown by the solid lines in Fig. 1 to the tape-pulling position shown by the two-dot chain line.

Further, the switch SW5 is pressed by the protrusion 21 on the gear 22 of the gear structure 19 at the end of unloading when the lid 56 of the adapter A is opened.
It is in the OFF state.

That is, when the small tape cassette B is stored in the storage section C in the adapter A, the switch SW1 becomes conductive, and when the lid section 56 of the adapter A is closed, the switches SW2 and SW3 are pressed against the displacement member, and each movable The pieces change and switch
SW3, switch SW1, storage battery 63, switch
Since a current path is formed by SW4 and switch SW2, the motor 11 is driven to rotate normally and tape loading is started.

At the same time as this tape loading starts, the switch SW5 moves away from the protrusion 21 on the gear 22 of the gear structure 19 and turns on as shown by the solid line, and the loading arm 25 is moved through the first gear group D. rotates counterclockwise.

When the loading arm 25 reaches the loading end position, the projection 21 of the gear 22 of the gear structure 19 presses the switch SW4 to turn it off, cutting off the current path of the motor 11 and stopping the motor.

In addition, in order to shift from the loading state to the unloading state, by operating the operation knob 57 in the X ₂ direction, the displacement member is displaced to its original position, and the movable pieces of switch SW2 and switch SW3 are respectively switched. Since the motor drive circuit forms a closed circuit with the switch SW2, the storage battery 63, the switch SW5, and the switch SW3, it is driven in the reverse direction regardless of the detection switch SW1 of the cassette. Further, after the unloading starts, as described above, the protrusion 21 of the gear 22 of the gear structure 19 moves away from the switch SW4, turning it on.
Even if the lid section 56 is opened and the small tape cassette B (B ₁ , B ₂ ) is taken out just before the end of unloading, the motor drive circuit will not switch to detect the cassette.
Since SW1 is bypassed, the loading arms 25 and 35 are moved to the final unloading position. When the unloading end position is reached,
The protrusion 21 of the gear 22 of the gear structure 19 presses the switch SW5 to turn it off, cutting off the current path of the motor 11 and stopping it.

(Effects of the invention) As described above, the small tape cassette adapter according to the present invention accommodates standard and high-performance small tape cassettes containing two different types of magnetic tapes in its storage section, thereby making it possible to identify small tape cassettes. The detecting section provided at one end of the detecting means can detect which small tape cassette is attached, and the opening/closing section provided at the other end of the detecting means can open and close the adapter housing. By opening and closing a detection hole provided in a part of the lower plate, it is possible to easily set the high-quality recording mode or the standard recording mode. In other words, when the adapter of the present invention is attached to a standard type magnetic recording/playback device that is capable of recording and playing back in standard mode and high-quality mode, the device can identify the adapter itself and switch modes accordingly. Therefore, the user does not have to perform complicated operations such as distinguishing between different types of small tape cassettes one by one, and is therefore extremely easy to use. This also has practical effects, such as preventing erroneous operations, such as when reproducing a high-performance compact tape cassette recorded in high-quality mode in standard mode.

[Brief explanation of the drawing]

Fig. 1 is a schematic enlarged plan view showing an embodiment of the small tape cassette adapter according to the present invention with the upper case removed, and Figs. 2 and 3 are longitudinal sectional side views showing the main components. 2 is a longitudinal sectional side view showing the gear train of the gear group of the drive system of the tape loading mechanism along the line in FIG. 1, and FIG. 3 is the gear train of the reel drive system along the line in FIG. 1. 4 is an external perspective view of the small tape cassette adapter according to the present invention, FIG. 5 is a bottom view of FIG. 4, and FIG. 6 shows a part of the main parts of the present invention. Fig. 7 is an external perspective view showing an example of a small tape cassette housed in the adapter shown in Fig. 1, and Fig. 8 is an external perspective view of the detecting means as seen from the lower plate side. Rear View of Standard Small Tape Cassette FIG. 9 is a rear view of a high performance small tape cassette containing high performance magnetic tape. 3... Lower plate, 3b... Through hole, S... Recessed part (identification part), 25, 35... Loading arm, 64
...Arm, 64a...Protrusion, 66...Sliding piece, A...Adapter for small tape cassette, B ₁
... Standard small tape cassette, B ₂ ... High performance small tape cassette, C ... Storage section.

Claims (1)

[Claim for Utility Model Registration] The adapter housing has substantially the same external shape as a standard type tape cassette, and is composed of an upper case, a lower plate, and a rotating front cover. A standard small tape cassette containing a standard tape that can be recorded in a standard recording mode with a predetermined carrier frequency; The tape cassette is equipped with a storage section for storing a high-performance compact tape cassette that has an identification section formed on the back side to identify that a high-performance magnetic tape that can be recorded in a high-quality recording mode with a high carrier frequency is stored. , an erroneous insertion prevention groove is formed in a part of the lower plate at a position separated from the front cover in a direction perpendicular to the insertion direction thereof, and one end of the erroneous insertion prevention groove is formed within the erroneous insertion prevention groove. A detection hole is provided near the storage section, and a detection section is provided at one end for detecting whether the small tape cassette stored in the storage section is a standard small tape cassette or a high-performance small tape cassette, and the other end is provided with the detection hole. A tape that is provided with a detection means having an opening and closing part for opening and closing the hole, and that draws out the tape from a standard or high-performance small tape cassette installed in the storage part to form a tape path that is substantially the same as that of a standard type tape cassette. In the adapter for a small tape cassette having a pull-out means, when the small tape cassette stored in the storage section is a high performance small tape cassette, the identification part of this high performance small tape cassette is attached to one end of the detection means. A detection section provided at the storage section detects the detection hole, and an opening/closing section provided at the other end opens the detection hole to enable recording in a high-quality recording mode, and the small tape cassette stored in the storage section is a standard small tape cassette. If so, the detection means is configured to close the detection hole using a detection section provided at one end of the detection means and an opening/closing section provided at the other end of the detection means to enable recording in a standard recording mode. Features a small tape cassette adapter.