JPS6048822B2 - Tape cassette adapter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a tape cassette adapter for use in recording and reproducing a tape cassette smaller than a standard type tape cassette corresponding to a standard type recording and reproducing machine, for example, with a standard type recording and reproducing machine. , a small tape cassette comprising a supply reel and a take-up reel with a reel-to-reel dimension that is shorter than the reel-to-reel dimension of a prescribed type of tape cassette. This is an adapter used when recording and reproducing on a specified type of recording/reproducing device, the external shape of this adapter is almost the same as that of a specified type of tape cassette, and the small tape cassette L/ A tape drawer mechanism that can pull out the tape, and a tape storage mechanism that can wind up the tape that has been pulled out of the tape cassette into the small tape cassette when removing the small tape cassette placed on the adapter from the adapter. and an operating mechanism for driving the tape pull-out mechanism and the tape storage mechanism in the tape pull-out direction and the tape wind-up direction. The tape bus of this pulled out tape can be easily made to be almost the same as the tape bus at the front of a standard type tape cassette, or conversely, the tape being pulled out can be stored in a small tape cassette. It is easy to do this, and it does not stain or damage the tape at that time, resulting in good recording and playback.Furthermore, preparation and cleanup for such recording and playback are easy, so recording and playback can be performed satisfactorily. The purpose is to provide an enjoyable tape cassette adapter.

1a, b, c, and d are smaller than standard type cassettes used when attached to a recording/reproducing apparatus such as a standard type video tape recorder, for example, used when attached to a portable type recording/reproducing apparatus. These are a plan view, a side view, a rear view, and a bottom view of a small cassette with a small amount of tape. Fig. 2 is a plan view of this small cassette with the upper half removed, Fig. 3 is a cross-sectional view, and Figs. 6 and 6 are partially enlarged explanatory views of the small cassette.

In the figure, A is a small cassette, and this small cassette A
The frame body consists of an upper half 1, a lower half 2, and a front cover 3 for protecting the tape, and this front cover 3 has a hinge portion 4 formed by molding a part thinly from resin such as polypropylene. The front cover 3 is normally biased in the closing direction by the action of a leaf spring 5 and attached to the upper half 1.

A hole 6 is formed in the lower half 2, and a projection 7 is formed in the front lid 3.
is formed, and when the front cover 3 is closed, the protrusion 7 is engaged with the hole 6, and the front cover 3 is locked. By pressing the protrusion 7 and moving it back, the locked state between the protrusion 7 and the hole 6 is released.
The front cover 3 can be opened by rotating it against the repulsive force of the leaf spring 5. Inside this small cassette A,
A supply reel 8 and a take-up reel 9 are arranged,
The distance between the supply reel 8 and the take-up reel 9 is shorter than the distance between the supply side and the take-up reel disk of a standard type recording/reproducing device which cannot be installed with only the small cassette A.

The magnetic tape 10 is arranged so that it runs along a predetermined running path between the supply reel 8 and the take-up reel 9. In other words, one magnetic tape is
The material passes from the supply reel 8 through the guide balls 11 and 12 and is wound onto the take-up reel 9. Supply side reel 8
An uneven groove 14 is formed on the lower surface of the lower flange 13, and an uneven groove 15 that can engage with the uneven groove 14 is formed at a predetermined position of the lower half 2 corresponding to the uneven groove 14 of the lower flange 13. It is attached to the upper half 1. Normally, the supply reel 8 is biased toward the lower half 2 side by the action of the flat spring 16, and the uneven grooves 14 and 1
5 are engaged with each other, the supply reel 8 is fixed, and the magnetic tape wound on the supply reel 8 is prevented from loosening. In addition, when a small cassette is attached to a recording/recording/playback device,
The supply reel 8 is lifted by a supply reel disk 80 of the recording and reproducing device by a specified amount toward the half 1 side against the repulsive force of the leaf spring 16, and the latched state between the uneven grooves 14 and 15 is released. will be done. That is, a hole 17 for inserting a supply reel disk 80 of the recording/reproducing device is formed in the lower half 2 at a position corresponding to the supply reel 8 . will be done. The take-up reel 9 is the lower half 2
The shaft 18 is inserted into the shaft 18 fixed to the
It is designed to be able to rotate around the center. This shaft 18
To attach it to the lower half 2, for example, a groove 19 is formed in the lower part of the shaft 18, a convex part 20 that fits into the groove 19 is formed in the lower half 2, and then the groove 19 is attached to the lower half 2. If the shaft 18 is screwed onto the lower half 2 with the screw 21 or the like with the convex portion 20 fitted into the shaft 18, the shaft 18 will not rotate idly during screwing, so it can be easily installed. Teeth 23 are formed on the outer periphery of the lower flange 22 of the take-up reel 9, and cutouts 24 are formed at predetermined locations on the lower half 2 so that gears, for example, can be engaged with the teeth 23. There is. Then, the take-up reel 9 is rotated by a predetermined driving force transmission mechanism such as a gear that meshes with the teeth 23, and the magnetic tape is wound from the supply reel through a predetermined travel path to the take-up reel. It becomes like this. This take-up reel 9 is provided with a brake mechanism so that the take-up reel 9 does not rotate when the small cassette A is not attached to the recording/reproducing device.

This brake mechanism includes, for example, a pawl 25 that engages with teeth 23 of the lower flange 22 of the take-up reel 9.
is inserted into the shaft 26 of the lower half 2, and when it is pressed and biased by the action of the spring 27,
The claws 25 are engaged with the teeth 23 of the lower flange 22, so that the take-up reel 9 does not rotate and the magnetic tape does not loosen. Then, in order to release the latched state and allow the take-up reel 9 to rotate, a pin is inserted through the hole formed in the lower half 2, and the pin is used to push the claw 25 onto the spring 27.
The claw 25 and the lower flange 22 of the take-up reel 9 are raised at different levels, and the take-up reel 9 becomes free and able to rotate. Note that the upper and lower halves of the small cassette are formed with a recessed part and a convex part for latching at the joining end of the upper half and the lower half, and by fitting the convex part and the recessed part, the upper half and the lower half are temporarily fastened together, and the two are strongly connected with screws.

FIGS. 7, 8, 9, and 10 are explanatory diagrams of an adapter used when the above-mentioned small cassette A is attached to a standard type recording/reproducing apparatus.

In the figure, B is an adapter that can accommodate the small cassette A inside and has a size and shape that can be attached to a standard type recording/reproducing device. The frame of this adapter B consists of a lower half 51 and an upper half 52, and the lower half 51 is formed with a storage section 53 which is a notch for storing the small cassette A. This housing section 53 has protrusions 54, 55, 56, and 57 formed at its ends to support the small cassette A, and the lower half 2 of the small cassette A has the protrusions 54, 55, 56, and 57 formed thereon.
, 55, 56, 57, recesses 28, 29,
30 and 31 are formed, and these protrusions and recesses are used to position the small cassette A, particularly in the vertical direction. When these protrusions and recesses are fitted, the bottom surface of the small cassette and the bottom surface of the adapter are made to be substantially on the same plane. Also, the protrusions 54, 55
Pins 58, 59 are implanted in the pins 58, 59.
59 is a hole 32 formed in the lower half 2 of the small cassette A,
33 to further position the small cassette A, and the pin 58 is inserted into the small cassette A.
It also functions to release the brake of the take-up reel 9. That is, the positions of the pin 58 and the hole 32 are such that when the pin 58 is inserted into the hole 32, the pin 58 lifts the claw 25, which is the fluke-shaped structure, of the take-up reel 9 of the small cassette A. . Adapter B with small cassette A inserted
When installed in a standard type recording/playback machine, the supply side reel disk of the recording/playback machine's two reel disks is inserted into the supply side reel 8 of the small cassette A, but the take-up side reel disk is inserted into the supply side reel 8 of the small cassette A. Since the take-up reel 9 is not inserted and arranged, a gear 60 that is driven when the take-up reel disk is inserted is attached to the lower half 51 of the adapter B at a position corresponding to the position of the take-up reel disk. It is being

Also, when storing the small cassette A in the adapter B, the lower flange 22 of the take-up reel 9 of the small cassette A is pressed.
A gear 61 that meshes with the teeth 23 is attached to the lower half 51 so as to mesh with the gear 60, and the engagement between the claw and the tooth is released by the pin 58, so that the recording/reproducing device is driven. The force is transmitted to the supply reel 8 and take-up reel 9 of the small cassette A, and the magnetic tape begins to run. That is, even if you try to install small cassette A into a standard type recording/playback machine, the relative positions of the supply side reel and take-up side reel of small cassette A will be the same as the supply side reel disk and the take-up side reel disk of the recording/playback machine. For example, if the supply reel disk is placed on the supply reel, a gear similar to the take-up reel is installed at the position of the take-up reel disk, and this gear and the winding of the small cassette are connected to each other. The driving force of a standard type recording/reproducing machine can be transmitted to the small cassette A by disposing a driving force transmitting means between the reel and the reel. Also, on both shoulders of the upper half 1 of the small cassette A, there are notches 34,
35 is formed, and the upper half 52 of the other adapter B
Walls 62 and 63 are formed in correspondence with the positions of the notches 34 and 35, and when the lower half 51 and the upper half 52 are aligned and, for example, screwed together, the small cassette A will not come out from the adapter B. Furthermore, the top surface of the small cassette and the top surface of the adapter are almost on the same plane.

When using the above-mentioned small cassette A by attaching it to a recording/playback device exclusively for small cassettes, such as a portable type recording/playback device, attach a standard type cassette to the standard type recording/playback device. As in the case of use, when the small cassette is inserted into the pop-up machine groove of the recording/reproducing device and the pop-up mechanism is moved to the operating position, the front lid of the small cassette A opens and the holes formed on the front and bottom of the small cassette A open. Notches 36, 37, 3
At step 8, the loading ball, kip stun, etc. of the recording and reproducing device are inserted inside the magnetic tape, and the supply reel disk of the recording and reproducing device is fitted to the supply reel of the small cassette, and the gear in the adapter B of the recording and reproducing device is inserted. The teeth of the lower flange of the take-up reel mesh with the drive force transmission mechanism to the take-up reel, such that the drive force of the recording/reproducing device is also transmitted to the take-up reel.

Furthermore, a recess 2 formed in the lower half 2 of the small cassette
8, 29, 30, and 31 match the convex portions of the recording/reproducing device,
In addition, the pins of the recording and reproducing device are inserted into the holes 32 and 33 of the lower half, and the position of the small cassette A is regulated within the recording and reproducing device, and the lock state of the take-up reel of the small cassette A by the claw is released. , the magnetic tape is maintained in a runnable state. Then, the magnetic tape is fed out from the small cassette by the loading ball,
The magnetic tape is tensioned by a magnetic head, and a driving force is transmitted to a take-up reel so that the magnetic tape runs along a predetermined running path, and recording and reproduction are performed. Also, when using this small cassette A with a standard type recording/playback device, attach the small cassette A to adapter B, and connect this adapter B to the recording/playback device in the same way as when using a standard type cassette. Attach it and start recording and playing.

That is, first, store the small cassette A in the storage section of the adapter B with the front lid of the small cassette A opened, and
In this stored state, a predetermined amount of the magnetic tape wound on the supply reel is pulled out from the opened front lid of the small cassette A, and the magnetic tape is inserted into the guide balls 64, 65, 66 provided on the adapter B. Place the magnetic tape in the same way as the magnetic tape in a standard type cassette, align the upper half of adapter B with the lower half, and screw them together. Since the small cassette A stored in the adapter B is configured in the same way as a standard type cassette, it can be used for recording and reproducing by attaching it to a standard type recording and reproducing machine. That is, when the small cassette is attached to the adapter, the gear 61 of the adapter meshes with the teeth of the lower flange 22 of the take-up reel 9, and
The pin 58 of the adapter lifts the pawl 2.5 against the repulsive force of the spring, releases the lock state of the take-up reel 9, and the driving force of the take-up reel disk is transferred to the take-up reel 9 through the gear 60. 61. Conversely, when the small cassette is removed from the adapter, the take-up reel 9 and gear 6
1 is disengaged and the pin 58 is removed from the small cassette, so the claw 25 is restored by the repulsive force of the spring 27, and the take-up reel 9 is locked. To attach the magnetic tape in the small cassette to the guide ball of the adapter, for example, press the supply reel directly with your hand to release the locked state of the supply reel, and open the magnetic tape cover. Pull it out a little by hand from the front cover, attach the small cassette to the lower half of the adapter, and attach the pulled-out magnetic tape directly to the guide ball of the adapter by hand.

However, the adapter for the small cassette is simply attached to Figures 7-10.
With only the configuration shown in the figure, the task of making the tape bus inside the small cassette almost the same as the tape bus of a standard type tape cassette when the small cassette is stored in the adapter requires directly inserting the tape by hand. This requires manual labor and will stain the tape.

Furthermore, the task of changing the tape bus itself becomes troublesome. Furthermore, when attempting to take out the small cassette from the adapter, simply removing the tape from the tape guide of the adapter will leave the tape loose, making it impossible to store the tape properly in the small cassette. Therefore, we developed an adapter that meets the above requirements while having basically the same external shape as the aforementioned adapter B.

That is, as shown in FIG. 11, adapter C has almost the same shape as adapter B, and this adapter C is provided with a gear body 1 port 0 similar to the gear 60 of adapter B. A reel disk on the winding side of the recording/reproducing device is disposed at the opening 0 of the gear body 1, and the gear body 100 is rotated by the driving force of the reel disk on the winding side.

Further, in the lower half of the adapter C, there is a gear body 101 that meshes with the teeth 23 of the lower flange of the take-up reel of the small cassette A and the gear of the gear body 100 when the small cassette A is stored in the adapter C. is provided, the driving force of the take-up reel disk is transmitted to the take-up reel, and the tape is wound. Reference numeral 102 denotes an arm disposed on the lower half 104 of the adapter C so as to rotate around a shaft 103, and a guide roller 105 serving as a tape guide is attached to a predetermined position at the tip of this arm 102. .

When the small cassette A is not stored in the adapter C, the arm 102 is in the position shown by the dashed line in FIG.
In the initial state when the cassette is stored in adapter C, it is small cassette A.
The guide roller 105 is biased and regulated in a predetermined position by, for example, a spring or the like so that the guide roller 105 is located inside the tape from the notch 38 . One end of a lobe 106 is attached to this arm 102, and the other end of this lobe is attached to an operating lever 107 provided on the lower half 104 through a predetermined path. Then, by rotating the operating lever 107 in the direction of the arrow a, the lobe 1 is
06 is pulled, and the arm 102 rotates to the position shown by the solid line in FIG. That is, the guide roller 105 is
It moves to the same position as the tape guide in the standard type tape cassette, and the tape bus also becomes different from the tape bus in the small cassette A. 1108 is an arm arranged on the lower half 104 of the adapter C so as to be able to rotate about a shaft 109, and a guide roller 110 serving as a tape guide is attached to a predetermined position at the tip of this arm 108. .

Similarly to the arm 102, the arm 108 is provided with a spring, for example, so that the guide roller 110 is located inside the tape from the notch 36 of the small cassette A in the initial state when the small cassette A is stored in the adapter C. It is regulated in a predetermined position by a lobe or the like against the repulsive force of. This arm 108 includes, for example, arms 111, 112, 1
A link mechanism such as No. 13 is arranged, one end of a lobe 114 is attached to the arm 113, and one end of the lobe 114 is attached to the arm 113.
The other end is attached to the operating lever 107,
Operation lever 1. The lobe 114 is loosened by the rotation of the opening 7 in the direction of the arrow a, and the arm 108 is moved and set from the dashed line position to the solid line position by the force of a spring or the like, and the tape is hooked on the guide roller 110 accordingly. and move the tape bus in small cassette A. It becomes different from. That is, by rotating the operating lever 107 in the direction of arrow a, the tape bus in the small cassette A becomes almost the same as the tape bus in a standard type tape cassette, for example, by the displacement of the guide rollers 105 and 110. . 115 is a gear part formed on the operating lever 107, and a gear 116 that meshes with this gear part 115 is disposed at a predetermined position on the lower half, and a shaft 117 to which this gear 116 is fixed has a gear 116 that meshes with this gear part 115. Gears 1-, 18 are attached so as to be slidable in the axial direction.

A gear 119 is disposed so as to mesh with the gear 118 when the gear 118 is moved, for example, above the shaft, and a gear 121 is fixed to the shaft 120 to which the gear 119 is fixed. The gear 121 is configured to mesh with the gear of the gear body 100. That is, when the gears 118 and 119 are brought into mesh with each other, the gear body 100 is rotated through the gears 116, 118, 119, and 121 by rotating the operating lever 107 in the direction opposite to the direction of arrow a. is driven, and the driving force to the gear body 100 is transmitted to the winding side reel of the small cassette A in the tape winding direction via the gear body 101. Note that only when the operating lever is rotated in the direction opposite to the direction of arrow a, the rotational force of the operating lever drives the gear body 101 to drive the take-up reel in the tape winding direction, and the small cassette is attached to the adapter. When recording and reproducing recorded data in a recording/recording/reproducing machine, it is sufficient to prevent the driving force of the gear body 100 from being transmitted to the operating lever. For example, a one-way clutch can also be used.

That is, when adapter C is removed from a standard type recording/playback device and the upper half of adapter C is removed, the 11th
It is almost the same as the solid line state in the figure, so
When the operating lever is rotated in the direction opposite to the direction of arrow a, the lobe 106 is loosened and the lobe 114 is tensed, so that the arms 102 and 108 are in the same state as they were when the small cassette A was stored in the adapter. .

In this state, the tape becomes slack, but at the same time the driving force in the winding direction is transmitted to the take-up reel of the small cassette, so the slack tape is taken up by the take-up reel, and the tape is It can be easily stored in a small cassette. Therefore, the tape and the like in the small cassette A are in the same state as when the small cassette A was stored in the adapter C, so that the small cassette A can be taken out from the adapter C as is. Note that the tape guide serving as the tape pull-out member may be arranged, for example, by disposing the shaft of the tape guide in a groove of a predetermined shape formed in the adapter, so that the path of this groove can be moved and set. After storing a small cassette in the adapter, if you move the tape guide along the groove and set it in the specified position, you can make it almost the same as the tape bus of a standard type tape cassette, for example.
What's more, you don't have to touch the tape directly.

In addition, in the above-mentioned tape drawing operation, it is necessary to release the locked state of the supply side reel by, for example, pressing the supply side reel of the small cassette.

As described above, the tape cassette adapter according to the present invention is an adapter used when a tape cassette smaller than a predetermined type of tape cassette is recorded and reproduced by a predetermined type of recording/reproducing machine. The external shape is almost the same as that of the cassette, and a tape drawer structure is also provided to pull out the tape in the small tape cassette placed on the adapter. The tape bus in the front of a small tape cassette is almost the same as that of a standard type tape cassette, so when recording and playing a small tape cassette on a standard type recording/playback machine, for example, the tape bus inside the small tape cassette can be type of tape cassette, which can be done without touching the tape directly, and therefore does not stain or damage the recording/playback surface of the tape cassette, resulting in good recording and playback. This also makes it easier to pull out tape from a small tape cassette and form a prescribed tape bus, making it easy to prepare for recording and playback on a standard type recording and playback machine using a small tape cassette, and When a small tape cassette is attached to the adapter and recorded and played back on a standard type recording/playback device, for example, when the small tape cassette is taken out from the adapter, the storage mechanism is activated and the tape cassette is placed in the adapter part. By winding the tape in a small tape cassette, the small tape cassette can be easily removed from the adapter, and the tape will not loosen when it is stored, and the recording and playback surface of the tape can be easily removed. The tape that has been drawn out from the small tape cassette can be safely stored inside the small tape cassette without getting dirty or damaged, and furthermore, it is easy to take out the small tape cassette from the adapter, so the tape can be easily stored in the small tape cassette. Even if the cassette is used in, for example, a standard type recording/reproducing machine, it is extremely convenient because subsequent processing is easy, and furthermore, it has the advantage that a small tape cassette can be substantially downsized.

[Brief explanation of drawings]

Figures 1 a - d and Figures 2 to 6 are explanatory diagrams of a small cassette, Figures 7 to 10 are explanatory diagrams of an adapter for storing a small cassette, and Figure 11 is an illustration of a tape cassette according to the present invention. It is an explanatory view of an example of Agbuta. A: Small cassette, B, C: Adapter, 100, 101: Gear body, 102, 1
08...Arm, 105,110...
Guide roller, 106, 114... tab, 1
07... Operation lever.

Claims (1)

[Claims] 1. A small tape cassette of a predetermined type is equipped with a supply reel and a take-up reel whose inter-reel dimension is set to be shorter than the reel-to-reel dimension between the supply reel and take-up reel of the predetermined type of tape cassette. An adapter used when recording and reproducing with a recording/reproducing machine, the outer shape of this adapter is approximately the same as the outer shape of a prescribed type of tape cassette, and the tape from a small tape cassette placed in this adapter can be pulled out. a tape draw-out mechanism; a tape storage mechanism capable of winding up the tape pulled out of the tape cassette into the small tape cassette when the small tape cassette placed on the adapter is taken out from the adapter; and the tape draw-out mechanism. and an operating mechanism for driving the tape storage mechanism in the tape pull-out direction and the tape winding direction.