JPS6128297Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is applicable to a tape cassette adapter used when recording and playing back a tape cassette smaller than a standard type tape cassette corresponding to a standard type recording and playing machine, for example. The external shape of this adapter is made to be almost the same as that of a standard type tape cassette, for example, and the adapter is equipped with a tape pull-out mechanism that pulls out the tape out of the small tape cassette, and a drive mechanism that drives the tape pull-out mechanism. a tape storage mechanism for winding the tape drawn out of the small tape cassette into the small tape cassette; and an operating mechanism for driving the tape in the tape winding direction, and the tape storage mechanism is configured to be rotationally driven by the operating mechanism via a rotation transmission means, so that the small tape stored in the adapter can be rotated. To provide an adapter for a tape cassette which allows a tape drawn out of the cassette to be easily stored in a small tape cassette after recording and reproduction, and does not stain or damage the tape at that time. With the goal.

Figures a, 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 with the upper half of this small cassette removed, Fig. 3 is a cross-sectional view, and Figs. 4 and 5. 6 and 6 are partially enlarged explanatory views of the small cassette.

In the figure, A is a small cassette, and the frame of this small cassette A consists of an upper half 1, a lower half 2, and a front lid 3 for protecting the tape.
The hinge part 4 is formed by molding a part thinly of resin such as polypropylene, and the front cover 3 is normally biased in the closing direction by the action of a leaf spring 5, and the upper half 1 is closed. attached to. A hole 6 is formed in the lower half 2, and a protrusion 7 is formed in the front cover 3. When the front cover 3 is closed, the protrusion 7 engages in the hole 6, and the front cover 3 has a lock. It's starting to take a while. By pressing the protrusion 7 and moving it backward, the locked state between the protrusion 7 and the hole 6 is released, and the front cover 3 can be rotated and opened against the repulsive force of the leaf spring 5. I'm starting to be able to do it.

A supply reel 8 and a take-up reel 9 are disposed in this small cassette A, and the distance between the supply reel 8 and take-up reel 9 is such that it cannot be installed with only this small cassette A. The distance is shorter than the distance between the supply side and take-up side reel disks of a standard type recording/reproducing device. 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. That is, the magnetic tape 10
is the guide pole 11, 12 from the supply side reel 8.
After passing through the film, the film is wound onto the winding reel 9. An uneven groove 14 is formed on the lower surface of the lower flange 13 of the supply reel 8, and a groove 14 is formed at a predetermined position of the lower half 2 corresponding to the uneven groove 14 of the lower flange 13 to engage with the uneven groove 14. Normally, the supply reel 8 is urged toward the lower half 2 by the action of a leaf spring 16 attached to the upper half 1, and the uneven grooves 14 and 15 are As a result, the supply reel 8 is fixed and the magnetic tape wound around the supply reel 8 is prevented from loosening. Note that when the small cassette is installed in the recording/reproducing device, this supply reel 8
is lifted by the supply side reel disk 80 of the recording/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. . 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 inserted into a shaft 18 fixed to the lower half 2 and is rotatable about the shaft 18. 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, and this groove 19
A protrusion 20 that fits into the lower half 2 is formed in advance, and the shaft 18 is screwed onto the lower half 2 with the screw 21 with the protrusion 20 fitted into the groove 19. 18 can be easily attached because it does not spin idle during screwing. Teeth 23 are formed on the outer periphery of the lower flange 22 of the take-up reel 9, and cutouts 2 are provided at predetermined locations on the lower half 2 so that gears, for example, can be engaged with the teeth 23.
4 is formed. 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 apparatus. 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, and this pawl 25 engages with the shaft 2 of the lower half 2.
6 and is biased by the action of the spring 27, the claw 25
is 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. In order to release this 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 pawl 25 against the repulsive force of the spring 27. Lift the claw 25 against the lower flange 2 of the take-up reel 9.
The take-up reel 9 is in a free state and can rotate.

In addition, in the upper half and lower half of the small cassette,
A locking recess and a protrusion are formed at the joint end of the upper half and the lower half, and the upper and lower halves are temporarily fastened by fitting the protrusion and the recess, and then screwed together. Strongly connect the two.

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, reference numeral B designates an adapter that can accommodate the small cassette A therein and has a size and shape that allows it to 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 in which the small cassette A is stored. This storage section 53 has protrusions 54, 55, 56, 57 formed at its ends to support the small cassette A, while the lower half 2 of the small cassette A has these protrusions 54, 55, 56, 57. Recesses 28, 29, 30, and 31 are formed corresponding to the positions, and these projections 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 approximately on the same plane. Further, pins 58 and 59 are implanted in the protrusions 54 and 55, and these pins 58 and 59 are inserted into the holes 32 and 33 formed in the lower half 2 of the small cassette A, whereby the small cassette In addition to positioning A, the pin 58 also serves to release the brake of the take-up reel 9 of the small cassette A. That is, the position of the pin 58 and the hole 32 is such that the pin 58 is in the hole 3
The position is such that the pin 58 lifts the pawl 25, which is the brake mechanism of the take-up reel 9 of the small cassette A, when the small cassette A is inserted into the reel 2.

When adapter B with small cassette A inserted therein is attached to a standard type recording and reproducing machine, the supply reel disk of the two reel disks of the recording and reproducing machine is inserted into the supply reel 8 of small cassette A. However, since the take-up reel disk cannot be inserted into the take-up reel 9, the take-up reel disk is inserted into the lower half 51 of the adapter B at a position corresponding to the position of the take-up reel disk. A gear 60 that is driven by the motor is attached.
Furthermore, when the small cassette A is stored in the adapter B, the gear 61 that meshes with the teeth 23 of the lower flange 22 of the take-up reel 9 of the small cassette A is
0, and the engagement between the pawl and teeth is released by the pin 58, so that the driving force of the recording/reproducing machine is applied to the supply reel 8 of the small cassette A. is transmitted to the take-up reel 9, and the magnetic tape begins to run. In other words, even if you try to install the small cassette A into a standard type recording/reproducing machine, the small cassette A
The relative position of the supply reel and take-up reel is
Because the relative positions of the supply side reel disk and the take-up side reel disk of the recording/reproducing device are not the same,
For example, if the supply reel disk is placed on the supply reel, a gear similar to that of the take-up reel is provided at the position of the take-up reel disk, and the driving force is transferred between this gear and the take-up reel of the small cassette. By providing a transmission means, the driving force of a standard type recording/reproducing machine can be transmitted to the small cassette A.

Also, notches 34 and 35 are formed on both shoulders of the upper half 1 of the small cassette A, and walls 62 and 63 are formed in the upper half 52 of the adapter B at the positions of the notches 34 and 35, respectively. is formed, 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, and furthermore, the top surface of the small cassette and the top surface of the adapter will be almost flush. They are designed to be on the same plane.

When using the above-mentioned small cassette A by attaching it to a recording/playback device exclusively for this small cassette, 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 mechanism 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 front cover formed on the front and bottom of the small cassette A opens. Notch 3
At steps 6, 37, and 38, the loading pole, capstan, etc. of the recording/reproducing device are inserted inside the magnetic tape, and the supply reel disk of the recording/reproducing device is fitted to the supply reel of the small cassette.
In addition, the teeth of the lower flange of the take-up reel mesh with a gear-like driving force transmission mechanism to the take-up reel in the adapter B of the recording/reproducing device, and the driving force of the recording/reproducing device is also transmitted to the take-up reel. Become so. Furthermore, the convex portions of the recording/reproducing device are aligned with the concave portions 28, 29, 30, 31 formed in the lower half 2 of the small cassette, and the holes 32, 33 of the lower half are aligned.
The pin of the recording and reproducing device is inserted into the recording and reproducing device, and the position of the small cassette A is regulated within the recording and reproducing device, and the lock state of the claw on the take-up reel of the small cassette A is released, and the magnetic tape becomes ready to run. maintained. Then, the magnetic tape is fed out in a small cassette through the loading port, is stretched to the magnetic head, and driving force is transmitted to the take-up reel so that the magnetic tape runs along a predetermined running path and recording and playback is performed. It will be done.

When using this small cassette A with a standard type recording/playback device, attach the small cassette A to the adapter B, and then attach this adapter B to the recording/playback device in the same way as when using a standard type cassette. Perform recording and playback. That is, first, with the front lid of small cassette A opened, small cassette A is stored in the storage section of adapter B, and in this stored state, the magnetic tape wound on the supply reel is opened and the front lid of small cassette A is opened. Pull out a predetermined amount of magnetic tape from the front cover, attach this magnetic tape to guide poles 64, 65, and 66 provided on adapter B, arrange the magnetic tape in the same way as the magnetic tape in a standard type cassette, and then insert the magnetic tape into the adapter. B
Align the upper half with the lower half and tighten the screws. Since the small cassette A stored in the adapter B is constructed in the same way as a standard type cassette, it can be recorded and reproduced by being attached to a standard type recording/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 engages the claw 2.
5 against the repulsive force of the spring, the take-up reel 9 is released from the locked state, and the driving force of the take-up reel disk is transferred to the gear 60,
61. Conversely, when the small cassette is taken out of the adapter, the engagement between the take-up reel 9 and the gear 61 is disengaged, and the pin 58 is removed from the small cassette, so that the claw 25 is restored by the repulsive force of the spring 27. , the take-up reel 9 is in a locked state.

To attach the magnetic tape in the small cassette to the guide pole of the adapter, for example, press the supply reel directly with your hand to release the lock state of the supply reel, open the lid of the magnetic tape, and insert the tape in the front. Pull it out a little from the lid part by hand, attach the small cassette to the lower half of the adapter, and attach the pulled-out magnetic tape directly to the guide pole of the adapter by hand.

However, if the adapter for a small cassette is simply configured as shown in Figures 7 to 10, when the small cassette is stored in the adapter, the tape path inside the small cassette will be almost the same as that of a standard type tape cassette. The task of ensuring that they are the same is done manually by touching the tape directly with one's hands, which stains the tape. Furthermore, the task of changing the tape path itself becomes troublesome. Furthermore, when attempting to remove the small cassette from the adapter, simply removing the tape from the tape guide of the adapter leaves 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 100 similar to the gear 60 of adapter B. 100
A reel disk on the take-up side of the recording/reproducing device is disposed at , and the gear body 100 is rotated by the driving force of the reel disk on the take-up side. Furthermore, a small cassette A is attached to the lower half of adapter C.
A gear body 101 is provided 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, so that the driving force of the take-up reel disc is The signal 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 be able to rotate around a shaft 103. 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 indicated by the dashed line in FIG. The guide roller 105 is biased to a predetermined position by, for example, a spring or the like so that the guide roller 105 is positioned inside the tape from the notch 38 of the cassette A. One end of a rope 106 is attached to this arm 102, and the other end of this rope passes through a predetermined path and is attached to an operating lever 107 provided on the lower half 104. Then, by rotating the operating lever 107 in the direction of arrow a, the rope 10
6 is pulled, and the arm 102 rotates to the position shown by the solid line in FIG. That is, the guide roller 105 moves to the same position as the tape guide in the standard type tape cassette, and the tape path also becomes different from the tape path in the small cassette A accordingly.

Reference numeral 108 denotes an arm disposed on the lower half 104 of the adapter C so as to be able to rotate about a shaft 109. 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 equipped with a spring or the like, 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 rope or the like against the repulsive force. This arm 108 includes, for example, the arm 11
One end of a rope 114 is attached to the arm 113, and the other end of the rope 114 is attached to the operating lever 107.
07 in the direction of arrow a, the rope 114 is loosened, and the arm 108 is moved and set from the dashed-dotted line position to the solid line position by the force of a spring, etc., and the tape is hooked on the guide roller 110 accordingly. The tape path will be different from that in the small cassette A.

That is, by rotating the operating lever 107 in the direction of arrow a, the tape path in the small cassette A is
By the displacement of the guide rollers 105, 110,
For example, the tape path is almost the same as that of a standard type tape cassette.

115 is a gear portion formed on the operating lever 107, and the gear 11 meshes with this gear portion 115.
6 is disposed at a predetermined position on the lower half, and a shaft 117 to which this gear 116 is fixed has a gear 1.
18 is slidably mounted in the axial direction.
The gear 1 is set so that the gear 118 meshes with the gear 118 when the gear 118 is moved, for example, above the shaft.
A gear 121 is fixed to a shaft 120 to which the gear 119 is fixed, and this 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, by rotating the operating lever 107 in the direction opposite to the direction of the arrow a, the gears 116,
The gear body 100 is driven through the gear bodies 118, 119, and 121, and the driving force to the gear body 100 is transmitted to the gear body 10.
1 to the take-up reel of the small cassette A in the tape winding direction.

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 and reproducing machine, it is sufficient to prevent the driving force of the gear body 100 from being transmitted to the operating lever, and various means other than the above can be considered for such a configuration. 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, it is almost the same as shown by the solid line in Figure 11, so move the operating lever in the direction opposite to arrow a. When the rope 106 is rotated, the rope 106 is loosened.
and the rope 114 is tensioned so that the arm 10
2,108 is the same as the initial state when the small cassette A is 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 etc. in small cassette A will be in the same state as when small cassette A was stored in adapter C, so the tape etc. in small cassette A will be
can be taken out from adapter C as is.

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

As mentioned above, the tape cassette adapter according to the present invention has a supply reel and a take-up reel whose inter-reel dimension is set to be shorter than the inter-reel dimension between the supply reel and take-up reel of a predetermined type of tape cassette. An adapter used when recording and reproducing a small tape cassette equipped with A tape drawer mechanism that pulls the tape out of a small tape cassette, a drive mechanism that drives this tape drawer mechanism, and a tape storage that winds the tape drawn out of the small tape cassette into the small tape cassette. and an operating mechanism that drives the tape storage mechanism in the tape winding direction when the tape drawer mechanism is driven in the return direction, and the tape storage mechanism is rotated by the operating mechanism via the rotation transmission means. Since the tape cassette is rotatably driven, after recording and reproducing a small tape cassette using, for example, a standard type recording/reproducing machine, the tape cassette adapter is taken out from the recording/reproducing machine, and the small tape cassette is inserted from the tape cassette adapter. When storing a tape that has been pulled out from a small tape cassette before taking it out into a small tape cassette, it is possible to do so without touching the tape directly with one's hands, thus avoiding staining or damaging the recording/playback surface of the tape. Recording and playback can be performed satisfactorily without interfering with subsequent recording and playback, and it is easy to store the tape pulled out from the small tape cassette into the small tape cassette. This makes it extremely easy to store tapes, especially since all you have to do is turn the operating lever, and you can easily clean up after recording and playing back on a standard type recording/playback machine using a small tape cassette. This has the advantage that a small tape cassette can be made substantially smaller.

[Brief explanation of the drawing]

1A to 6 are explanatory diagrams of a small cassette, FIGS. 7 to 10 are explanatory diagrams of an adapter for storing a small cassette, and FIG. 11 is an explanatory diagram of an embodiment of the tape cassette adapter according to the present invention. It is a diagram. A... Small cassette, B, C... Adapter, 10
0,101...Gear body, 102,108...Arm,
105,110...Guide roller, 106,11
4...Rope, 107...Operation lever.

Claims (1)

[Scope of utility model registration request] A small tape cassette with a supply reel and a take-up reel whose inter-reel dimension is set to be shorter than the inter-reel dimension between the supply reel and take-up reel of a predetermined type of tape cassette is used for recording of a predetermined type. This is an adapter used when recording and playing back on a playback machine, the external shape of this adapter is approximately the same as that of a specified type of tape cassette, and a tape drawer that pulls out the tape outside of the small tape cassette placed on this adapter. a mechanism, a drive mechanism for driving the tape draw-out mechanism, and a tape storage mechanism for winding the tape drawn out of the small-sized tape cassette into the small-sized cassette;
and an operating mechanism that drives the tape storage mechanism in the tape winding direction when the tape pull-out mechanism is driven in the return direction, and the tape storage mechanism is rotationally driven by the operating mechanism via a rotation transmission means. A tape cassette adapter characterized in that the tape cassette adapter is adapted to be