JPS6023421B2 - Adapter for small tape cassette - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape cassette adapter used, for example, when installing a tape cassette smaller than a standard type into a standard type video tape recorder, etc. It is an object of the present invention to provide an adapter for a small tape cassette which can improve operability by having a structure in which the operation of pulling out and forming a predetermined tape path in the adapter can be performed by a motor.

If you want to use a small tape cassette used in a recording/playback machine such as a video tape recorder in a recording/playback machine that is equipped with a larger tape cassette, for example, a standard type tape cassette, you need to use this small tape cassette. You will need an adapter to convert the tape into a standard tape cassette. This adapter may simply serve as a housing if the tape running path of the small tape cassette is configured in the same way as the tape running path of a standard type tape cassette. Any concave case body that fits over the rear and both sides of the tape cassette may be used. However, tape cassettes whose tape running path is the same as the standard type cannot be made that small because the tape running path is the same, even though they are smaller than the standard type. . Therefore, in order to make a small tape cassette substantially smaller, the tape running path must be different from that of a standard type tape cassette. This can only be done by reducing the distance between you and the reel.

Therefore, when a small-sized tape cassette constructed as described above is used in a standard type recording/reproducing machine, an adapter having a concave case body that merely serves as a housing for the tape cassette is insufficient.
That is, when a small tape cassette is installed, it must be possible to change the tape path of the 4-inch tape cassette so that it can be adapted to a standard size recording/playback machine. In addition, since magnetic tape does not like being touched by the operator's fingertips, the operation of pulling out the tape from the small tape cassette and forming a predetermined tape path within the adapter when the small tape cassette is stored in the adapter is automatic. It is desirable that this be done in a consistent manner.

Furthermore, it is preferable to perform this tape path forming operation by means of a motor in order to improve operability. The present invention has been made in accordance with the above object, and one embodiment of a small tape cassette adapter according to the present invention will be described below.

The cassettes shown in FIGS. 1a, b, c, and d are smaller than the standard type cassette used in a recording and reproducing apparatus such as a standard type video tape recorder, and are used in a portable type recording and reproducing apparatus, for example.

For example, they are a plan view, a side view, a back 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, and FIG. 3 is a schematic sectional view.
FIGS. 4 and 5 are parts diagrams and partially enlarged explanatory views of the small cassette. In the figure, A is the entire small cassette, and the frame of this small cassette A consists of an upper half 1, a lower half 2, and an opening/closing lid 3 for protecting the tape.This opening/closing lid 3 is shown in FIG. As shown, it is rotatably attached to the upper part of the front side of the upper half 1 by means of a support shaft 4. As shown in FIG.
One part of the sliding piece 7, which is inserted into a cut groove 5a bored in the side surface of the upper half and is pressed by a substantially U-shaped spring 6 and is movably held in the cut groove 5b, opens and closes. Lid 3
The opening/closing lid 3 abuts with the first abutting portion 3a of FIG.
in the open position shown.

At this time, the lower end of the opening/closing lid 3 is in contact with the front weave of the lower half 2.

From this closed state, the opening/closing lid is rotated counterclockwise in FIG. 1B by a means well known for cassette type VTRs, so that the opening/closing piece 7 moves against the spring 6.

After passing the dead point, the second abutting portion 3b and the sliding piece 7
The second abutting portion 30 and one end of the sliding piece 7 abut against each other, and the force of the spring 6 is also applied, and the opening/closing lid 3 further rotates and rotates 90 degrees until the second abutting portion 30 and one end of the sliding piece 7 are completely connected. By colliding with
Due to the elastic force of the spring 6, the opening/closing lid 3 is maintained in the open state.

In this open state, the open/close lid 3 is located at a higher level than the upper end surface of the upper half 1, as shown in FIG.

The spring 6 is attached and held by the cut groove 5 from above the cassette.
The spring 6 can be easily inserted into the upper half 1 by inserting the spring 6 into the upper half 1, and furthermore, by providing the protrusion 5c on the outer extension of the cut groove 5a, the spring 6 can be easily prevented from coming off once inserted.

A supply reel 8 and a take-up reel 9 are arranged 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 reel disk and the winding side reel disk of a standard type recording/reproducing device.

The magnetic tape 10 is arranged so that it runs along a predetermined running route between the supply reel 8 and the take-up reel 9.

That is, one magnetic tape is wound from the supply reel 8 to the take-up reel 9 via the guide poles 11a, 12a, 11b, 12b.

An uneven groove 1 is formed on the lower surface of the lower flange 13 of the descendant mating side reel 8.
4 is formed, and an uneven groove 15 that can engage with the uneven groove 14 is also formed at a predetermined position of the lower half 2 corresponding to the uneven groove 14 of the lower flange 13, and is attached to the upper half 1. Normally, the supply reel 8 is biased toward the lower half 2 by the action of the flat spring 16,
The uneven grooves 14 and 15 mesh with each other, and the supply reel 8
is fixed to prevent the magnetic tape wound on the supply reel 8 from loosening. FIGS. 4a and 4b are a plan view and an explanatory view of the leaf spring 16, and by iron-fitting the protrusion of the upper half 1 to the hole 16a in the center of the leaf spring 16 and welding it,
The leaf spring 16 is fixed to the upper half.

Incidentally, when the small cassette is installed in the recording and reproducing device, this supply side reel 8 is connected to the supply side reel disk 8 of the recording and reproducing device.
0, the half 1 side is lifted by a specified amount against the reaction force of the leaf spring 16, and the engagement between the uneven grooves 14 and 15 is released.

In other words, the lower half 2 at the position corresponding to the supply reel 8
A hole 17 for inserting a supply reel disk 80 of the recording/reproducing apparatus is formed in the reel 8, and the supply reel disk 80 is inserted into the feed reel 8.

The take-up reel 9 is inserted into a shaft 18 fixed to the lower half 2 and is rotatable about the shaft 18. The pith 18 is, as shown in FIG. 1d and FIG. 3,
A screw 19 passing through the center of the recess 2a at the bottom of the lower half 2
A shield is provided on the lower half 2. The lower end surface of the screw 19 does not protrude from the lower end surface of the lower half 2, and
It protrudes from the a side. In the schematic cross-sectional view of FIG. 3, the recess 2a of the lower half 2 is omitted for simplification, and the details are as shown in FIG. Teeth 23 are formed on the outer periphery of the lower half 2, and cutouts 24 are formed at predetermined locations on the lower half 2 so that, for example, gears can be engaged with the teeth 23. Then, the take-up IJ 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 traveling route to the take-up reel. It becomes like this.

This take-up reel 9 is provided with a brake mechanism. This brake mechanism, for example, as shown in FIGS. 2 and 5 (FIG. 5 is a sectional view taken along the line V-V in FIG. 2 with the upper half attached), side reel 9
Brake 25 that presses the upper surface of the peripheral edge of the lower flange 22
The brake 25 is inserted into the ratchet 26 formed integrally with the lower half 2, and when pressed and biased by the action of the spring 27, the shoe portion 25a of the brake 25 is pressed against the lower flange 22. The magnetic tape is brought into contact with and pressed against the upper surface of the surrounding green portion, so that the take-up reel 9 does not rotate and the magnetic tape does not loosen. In order to release this braking state and allow the take-up reel 9 to rotate, a pin is inserted through the hole 32 formed in the lower half 2, and this pin connects the pond end 25b of the brake 25 to the spring 27. Lift the shoe part 2 of the brake 25 against the anti-trailing force.
By separating 5a from the upper surface of the peripheral edge of the lower flange 22 of the take-up side IJ reel 9, the take-up side reel 9 becomes free and can rotate. In addition, the take-up side brake mechanism is assembled by integrally molding it into the lower half after installing the take-up reel 9 on the lower half 2 (or immediately after inserting the lower flange in the process of installing the take-up reel 9). axis 26
Insert the brake 25 into the shaft 2, and insert the coil spring 27 into the shaft 2.
After fully enclosing and inserting the spring 27, the upper half is attached to hold the spring 27, thereby making it easy to stand up.

In addition, the upper and lower halves of the small cassette are formed with a locking recess and a protrusion at the joining end of the upper and lower halves, and the competition between the convex and the recess allows the upper and lower halves to be separated. Temporarily fasten the two and firmly connect the two with screws.

In addition, as clearly shown in FIGS. 1b, c, and d, the bottom surface of the small cassette A has notches 21, 212 with different lengths 1, 12 from the front and rear surfaces, and 1, > 12. It is provided.

The lower end of the opening/closing lid 3 is also provided at the same height as the notch 21, and the top surface of the small cassette has no notch on the front and an arcuate notch 113 on the rear. ＞
It is now 13.

Therefore, when a 4-inch cassette is installed in a recording/playback device, the protrusion provided on the cassette housing will be inserted into the notch 21 only when the small cassette is inserted correctly; is the notch 21 of the cassette half
2,113, making it impossible to completely install the small cassette.

FIGS. 6 to 10 are explanatory diagrams of an example 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.
A storage section 53 for storing a small cassette A is formed in the lower half 51.

This housing section 53 has projections 54 and 55 for regulating the position of the small cassette A formed at its ends, and recesses corresponding to the positions of the projections 54 and 55 on the lower half 2 of the small cassette A. 28, 29 are formed, and furthermore, a screw 19 protruding into the bottom recess 2a of the 4-type cassette A is attached to the first screw 19.
As shown in FIG. 0, it is inserted into the tapered center hole 56a of the annular holder 56, and the annular holder 56b abuts against the recess 2a. The small cassette A is formed by these convex portions and concave portions.
, especially in the vertical direction. or,
Pins 58 and 59 are implanted in the protrusions 54 and 55,
These pins 58 and 59 are inserted into holes 32 and 33 formed in the lower half 2 of the small cassette A.

The horizontal positioning of the small cassette A in the adapter B is achieved by inserting the screw 19 of the small cassette A into the tapered medium Q hole 56a of the annular holder 56, and attaching the pin 5 of the protrusion 54
9 enters the elongated hole 33 of the small cassette A. Pin 58 is the winding measuring wheel 9 of small cassette A.
The function is to release the brake. That is, as clearly shown in FIG. 5, the positions of the pin 58 and the hole 32 are such that when the pin 58 is inserted into the hole 32, the brake 25, which is the brake mechanism of the take-up reel 9 of the small cassette A, is 58 is in a position to lift it up. 101 and 102 are adapter B
A hinge 103 is attached to the upper half 52 and the lower half 51 so that they can be opened and closed, and 103 is attached to the upper half 52 by a spring 105 centered around a support 104 and constantly biased in the direction of closing the lid. , is the opening/closing lid of the cassette adapter B.

106 is fixed to the support shaft 104, and the inclined cam surface 1
06a, 106b, when the upper half 52 closes, the protrusion 107 fixed to the lower half 51 comes into contact with the oblique cam surfaces 106b, 106a, etc.
This operation causes the opening/closing lid 103 to be opened/closed by a small amount.

When the lid closing operation of the upper half 52 is performed, as shown in FIG.
A claw portion 108 at the tip of the side surface formed integrally with the adapter B locks the upper and lower halves of the adapter B in the closed state by engaging with a notch 109 provided on the side surface of the lower half 51. ing.

This lock can be easily released by pressing the protrusion 110 on the side surface of the upper half 52 inward.

111 is a protrusion 110 integrally molded with the upper half 52, and a cut groove bored on the side surface of the upper half 52 to give elasticity to the claw 108; 112 and 113 are the upper half 52, This is a guide protrusion provided on the side abutting portion of the lower half 51. When the adapter B with the small cassette A inserted is attached to a bran-type recording/playback machine, 2 of the record/playback machine
Among the reel disks, the feed side reel disk is inserted into the supply side reel 8 of the small cassette A.
Since the take-up side reel disk cannot be inserted into the take-up side IJ-ru 9, the take-up side A gear 60 is attached to which the reel disk is inserted and driven.

Also, when storing small cassette A in adapter B,
A 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 attached to the lower half 51 so as to mesh with the gear 601. The gear 61 is centered on the center hole 56a of the annular holder 56, and
6 and the bottom surface of the lower half 51, the shaft 115 is rotatably mounted on the tip of a plate 114 which is rotatably held, and furthermore, the shaft 115 is integral with the gear 60. The winding side reel disk insertion part 60a passes through the hole of the protruding part 116a of the annular holder 116 to be fitted, and is fixed to the tip of the sliding lever 117.

The sliding lever 117 is configured to be slidable over a predetermined range on a lever 119 that extends around a support shaft 118, which is mounted on the lower half 51, and to align the gear 61 perpendicularly to the bottom surface of the lower half 51. I'm keeping it that way. Because of this configuration,
Even if the position of the reel disk on the take-up side is changed between the recording and reproducing devices used, the position of the gear 60 changes according to the device. Since the distance to the take-up side reel disk is not changed, the meshing state between the gear 61, the teeth 23 of the lower flange 22, and the gear 60 will not come off.

Further, since the gear 61 is not pressed in the direction of the gear 60 and the teeth 23 by the spring, the magnetic tape can be wound with a relatively weak torque. (As a result, this application shows that despite the addition of a take-up reel transmission mechanism and the creation of multiple magnetic tape running paths, it is possible to record and play back on a small cassette using an adapter with a conventional device that uses a standard cassette. ) As the small cassette A is inserted into the adapter B, the lower lj-le flange 2 inside the small cassette A
In order to easily and securely engage the second tooth 23 with the gear 61, as clearly shown in FIG. 61b
It is made up of.

Therefore, the teeth 23 of the lower reel flange 22 work together with the taper formed on the teeth 23 of the lower reel flange 22 to ensure that the teeth 23 of the lower reel flange 22
and the gear 61 can be meshed with each other.

The abutting condition between the brake 25 and the green part around the lower flange is pin 5.
8, the driving force of the recording/reproducing machine 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/reproducing machine, the relative position of the supply side reel and take-up side reel of small cassette A will be the same as the supply side IJ of the recording/playback machine.
Since the relative positions of the roll disc and the take-up reel disc are not the same, for example, if the supply reel disc 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 disc. By disposing a driving force transmitting means between this gear and the take-up reel of the small cassette, the driving force of a standard type recording/reproducing machine can be transmitted to the small cassette A.

Additionally, in general, in VTRs, etc., the rotational unevenness of the supply reel has a worse effect on recording and reproducing performance than the rotational unevenness of the take-up reel, so in this embodiment, the drive system of the supply reel is different from the conventional one. The machine is configured to be the same as the standard equipment, and the reel drive system on the take-up side has been changed to have less impact.

Reference numeral 120 designates an accidental erasure prevention lever that is constantly biased with a clockwise rotating force by a coil spring 120d around a support shaft 120c that is raised on the bottom surface of the adapter B, and one end 120a is attached to the back surface of the lower half 51. 6, and is locked in the state shown in FIG.

Reference numeral 120b denotes a detection projection provided on the accidental erasure prevention lever 120, which protrudes into the small cassette storage section. When the small cassette A is inserted, it detects the presence or absence of the accidental erasure prevention claw 2d. , the erroneous erasure prevention lever 120 is rotated counterclockwise from the state shown in FIG.

When a non-recordable small cassette A is inserted into the adapter B, the accidental erasure prevention lever 120 is in the state shown in FIG. A notch 121 bored in the lower half 51 of the adapter B,
122, 123, 124 and openings 125, 126, 12
7 and 128 are the same as standard cassettes, and each has a loading pole, a capstan, a notch for inserting a barrier bar, a light emitting source for tape end detection, a brake release pin,
This is a hole for inserting a positioning pin.

129 is a gear 6 fixed to the upper half 52 at the base.
0 pressing spring, 130 is a transparent plate welded to the upper half 52, and 131 is an opening into which the opening/closing lid is inserted when the small cassette A is opened.

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, the small cassette is inserted into the cassette housing 132 of the pop-up mechanism of the recording and reproducing apparatus as shown in FIGS. 14 and 15.

When the small cassette A is inserted in the normal state shown in FIG. 15, the protrusion 133 on the bottom of the cassette housing will be inserted into the bottom notch 21 of the small cassette A, and will come into contact with the bottom of the cassette when it is fully installed. contact and location is regulated.

When the small cassette A is accidentally inserted, the protrusion 133 comes into contact with the cassette, making it impossible to insert any more cassettes. When the small cassette A is inserted into the cassette housing 132, the top surface of the small cassette is pressed by the rotating lever 138, which is biased by a spring 136 to rotate counterclockwise about the support shaft 137 in FIG. The small cassette A is pressed against the lower surface of the cassette housing 132 by being pressed by the portion 138a. When the pop-up mechanism is moved to the operating position, the front lid of the small cassette A opens and the notches 36, 3 formed in the front and bottom parts of the small cassette A open.
Loading pole 1 of the recording/reproducing device at 7,38
34, capstan 135, etc. are inserted inside the magnetic tape (as shown in Figure 2), and the supply reel disk of the recording and reproducing device is iron-coupled with the supply reel of the small cassette, and the capstan 135 of the recording and reproducing device is inserted into the magnetic tape. A drive transmission mechanism to the take-up reel, similar to the gear in B, enters the small cassette in connection with the movement of the pop-up mechanism from the inactive position to the activated position, and the gears on the lower flange of the take-up reel enter the small cassette. mesh with each other, and the driving force of the recording/reproducing device is also transmitted to the take-up reel.

Further, a recess 2 formed in the lower half 2 of the small cassette
The convex portions of the recording and reproducing device are aligned with the holes 32 and 33 of the lower half, and 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 adapter is regulated in the recording and reproducing device. The lock state of the brake on the take-up reel A is released, and the magnetic tape is maintained in a running state. Then, the magnetic tape is fed out from the small cassette by the loading pole, attached to the rotating magnetic head, and the driving force is transmitted to the take-up side IJ wheel so that the magnetic tape runs along a predetermined running path, and recording and playback are performed. It will be done.

When taking out the small cassette A from the dedicated recording and reproducing device, the cassette housing 132 is raised to the non-operating position by the stop operation and the eject operation, and then the small cassette A is pushed out to the right in FIG. 14 by a spring (not shown). Ru.

Due to this movement of the small cassette A to the right, the second abutment part 3b of the closed opening/closing lid (which protrudes from the top surface of the cassette when the lid is closed) is pressed against the pressing part 13 of the rotating lever 138.
8a, the rotation lever 138 receives a counterclockwise rotation force, but its rotation is restricted, so the opening/closing lid 3 is opened against the elastic force of the spring 6, and the opening/closing lid 3 is opened against the elastic force of the spring 6. In this state, the small cassette A can be taken out. Also, this small cassette A
When using with a standard type recording/playback device, 4.
Type cassette A is attached to adapter B, and this adapter B is attached to a recording/reproducing apparatus in the same manner as a standard type cassette to perform recording and reproduction.

That is, first, with the front lid of the small cassette A opened, a predetermined amount of the magnetic tape 10 is pulled out.

At this time, the brake 25 is in contact with the take-up reel 9, but the slip between the lower reel flange 22 and the brake 25 allows the magnetic tape to be pulled out easily and without damage. By inserting the protrusion of the adapter storage part 53 into the side recess of the small cassette A, incorrect insertion can be prevented and the small cassette A can be stored in the adapter B storage part in the normal position. The pulled out magnetic tape is attached to the guide poles 64 and 65 provided on adapter B, and the magnetic tape is placed on the front side of adapter B in the same way as the magnetic tape path on the front side of a standard type cassette. Open the lid so that the top half matches the bottom half.

As mentioned above, the small cassette A is stored in the storage section 53 of the adapter B.
When the small cassette A is stored in the cassette A, the screw 19 on the bottom of the double-shaped cassette A is inserted into the center hole 56a of the annular holder 56, and the pin 59 is inserted into the elongated hole 33, thereby positioning the small cassette A. Ru.

Due to the closing action of the upper half 52 of the adapter B, the opening/closing lid 103 rotatably provided on the upper half 52 comes into contact with the projections 107 on the mirror cam surfaces 106a and 106b, and once the lid is closed, be shut down.

Therefore, the magnetic tape 10 attached to the guide poles 64 and 65 can be easily inserted into the upper half 5 of the adapter B without being damaged or bent by the opening/closing lid of the adapter B.
2 can be closed to the lower half 51.

At this time, the claw portion 108 of the upper half 52 is engaged with the cutout portion 109 of the lower half 51, and is locked in the closed state. Since the small cassette A stored in the adapter B is the same 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 securely with the teeth of the lower flange 22 of the take-up reel 9 from the state shown in FIG. is lifted against the anti-trailing force of the spring to release the locked state of the take-up reel 9, and the driving force of the take-up reel disk is transmitted to the take-up reel 9 via gears 60 and 61.

Conversely, when the small cassette is removed from the adapter, the reel 9 on the pick-up side and the gear 61 are disengaged, and the 4.
Since the pin 58 is removed from the mold cassette, the spring 27
The brake 25 is restored by the repulsion force, and the take-up reel 9 becomes locked. Furthermore, the gear 61 is configured so that there is a slight degree of freedom in setting the position. For example, when a small cassette is attached to or removed from the adapter, the gear 61 is moved, and during attachment, the gear 61 is rotated with the gear 60. It can also be configured so that it can mesh with the teeth of the lower flange of the take-out reel, and in this case, it becomes convenient to attach the small cassette to the outside of the adapter and take it out.

In the adapter configured as described above, when drawing out the tape from the 4-inch cassette and forming a predetermined tape path within the adapter, it must be done manually, resulting in poor operability.
Furthermore, if the operator's fingertips touch the magnetic tape, there is a risk that the tape may be soiled or damaged.

The present invention provides an adapter for tape cassettes that eliminates the above-mentioned drawbacks, and one embodiment of the present invention will be described below.

FIGS. 11, 12, and 13 are diagrams for explaining one embodiment of the present invention, and show the operation of pulling out a magnetic tape from a 4-inch cassette A, and the operation of storing a magnetic tape into a small cassette A. A plan view showing the tape drawer mechanism with the upper plate of the upper half of the cassette adapter C, which is an improved version of the adapter B from the point of view of operability, using a motor, and the opening and closing of the operation lid. FIG. 2 is a plan view and a side view showing the opening/closing operation of the opening/closing lid on the front surface of the cassette adapter.

Descriptions of parts that are approximately the same as those of the adapter B described above will be omitted. If you insert the magnetic tape 10 into the adapter C without pulling it out from the small cassette A, the magnetic tape 10 will be inserted into the small cassette A.
Guide rollers 140 and 141 are inserted into the notches 36 and 38 and inside the magnetic tape 10.

142 is a first motor, and an arm 142a fixed to the motor shaft is connected to a bog movement lever 144,
The opening/closing lid 103 of the adapter C is opened and closed as described later.

Reference numeral 143 designates a second motor, and an arm 143a fixed to the motor shaft is connected to connectors 150 and 155, and performs tape draw-out and storage operations as described later.

When the small tape cassette A is inserted into the adapter C and installed, a microswitch (not shown) detects this, the first motor 142 is activated, and the sliding lever 144 is moved toward the left in FIG. 145 to the position shown in the figure.
Press one end of the L-shaped lever 146 provided at the center and rotate it clockwise to move the connector 146' connected to the pond bridge upward in FIG. Since the protrusion 147 provided on the support shaft 104 of the opening/closing lid 103 is connected to the tip of the connector 146', the opening/closing diamond 103 is opened by the above operation. Note that the first motor 142 can also be started by the operator operating a switch provided on the back of the adapter C, for example.

When the opening/closing lid 103 is opened, the first motor 142 stops, the second motor 143 rotates, and the arm 143a moves clockwise from the position shown by the two-dot chain line to the position shown by the solid line in FIG. When the connector 150 is rotated to the position indicated by the solid line, the connector 150 moves downward in FIG.
is rotated clockwise around the support shaft 152.

By turning the rotary lever 151, the first loading lever 153 moves about the support shaft 154 from the position indicated by the dashed line to the position indicated by the solid line, and the magnetic tape is pulled out from the small cassette. Further, the above-mentioned rotation of the arm 143a causes the L-shaped lever 156 to rotate clockwise about the support shaft 157 via the connector 155, and moves the lever 158 to the right in FIG.

By moving the lever 158 to the right, the gear 159 is rotated clockwise via a lever 160 provided integrally with the gear 159, and the second
Gear 16 provided integrally with loading lever 162
Rotate 3 clockwise.

Therefore, the second loading lever 162 moves from the position indicated by the dashed line to the position indicated by the solid line in FIG. 11, and the magnetic tape 10 is pulled out from the small cassette A. The positions of the guide rollers 140, 141 at this time are naturally the same as the guide positions of the standard type cassette. Furthermore, as the second loading lever 162 moves, the guide pole 141 comes into contact with the opening/closing lid 103 in FIG. As a result, the opening/closing lid 103 is opened and closed, so the above operation is not hindered.

Further, as the connector 150 moves downward in FIG. 11, the pivot lever 165, which is rotatably provided around the support shaft 164, is pivoted clockwise to the position indicated by the solid line.

The tip of the cylindrical lever 165 is the storage part 5 of the small cassette A.
3 and enters an arcuate notch 113 bored in the upper surface of the small cassette A stored therein.

Therefore, when the magnetic tape 10 is being pulled out from the 4-type cassette A by the guide rollers 140 and 141,
Small cassette A cannot be removed from adapter C. Furthermore, when trying to insert the small cassette A into the adapter C where the guide rollers 140 and 141 are in the position shown by the solid line in FIG. This can prevent accidents such as the inability to record and play back data or damage to the magnetic tape. Furthermore, when the first and second loading levers 153 and 162 rotate to the tape withdrawal completion position, the microswitch (
(not shown) is activated, and the second motor 143 is stopped.

Subsequently, the first motor 142 rotates in the opposite direction, the protrusion 147, the connector 146', and the L-shaped lever 146 are moved in the opposite direction, and the opening/closing diamond 103 is closed.

When the opening/closing lid 103 is opened, the first motor 142 stops. Adapter C that stores a small cassette in the upper state
is attached to a standard recording/playback device, and recording/playback is performed using Adapter B.
It is done in the same way as in the case of

Next, after the standard recording and reproducing device finishes recording and reproducing,
The operation of winding and collecting the tape in the small cassette A will be explained.

When the adapter C is removed from the standard recording/playback device and the switch on the adapter C is operated, the first motor 142 and the second motor 143 operate in the same manner as in the above case (however, the second motor 43 operates in the opposite direction). Then, the tape is stored in the small cassette A.

That is, when the switch is operated, first the first motor 142
rotates, and the opening/closing lid 103 of the adapter C is opened.

When the lid 103 engages, the first motor 142 stops;
This time, the second motor 143 rotates in the opposite direction, and the first and second loading levers 153, 162, etc. are moved to the positions indicated by the dashed-dotted lines, which is the opposite operation to that described above. Also the second
The gear 166 fixed to the motor shaft of the motor 143 rotates, and this rotation is transmitted to the gear 60 via the gear mechanism.
By rotating the take-up reel, the magnetic tape drawn out from the small cassette A is wound into the small cassette A.

A gear 166 is provided in the gear mechanism when the operating lever 149 is rotated clockwise by a known one-way clutch or the like, when the adapter C is attached to the device, etc.
and a mechanism for cutting off the rotational transmission force of the gear 60.

When the first and second loading levers 153, 162 return to their original positions, the second motor 143 stops, and the first motor 142 opens and closes the opening/closing diamond 103 again.

After this, the first motor 142 stops. In the above embodiment, two motors are used, but the invention is not limited to this. For example, if one motor is used, the opening/closing lid 103 is opened by the first rotation of this motor, and the second It is also possible to adopt a configuration in which the tape pull-out mechanism is actuated by the rotation in stages, and the opening/closing lid 103 is closed by the rotation in the third stage.

Further, the position of the pivot point of the second loading lever 162 can be appropriately determined so that the guide roller 141 can move without colliding with the closed lid 103.
In this case, there is no need to provide the opening/closing lid 103 each time the tape is pulled out from the small cassette A and stored in the cassette A, and the first motor 142 and related mechanisms can also be omitted. As described above, the small tape cassette adapter according to the present invention is an adapter that is used to store a small tape cassette when a tape cassette smaller than a predetermined type of tape cassette is attached to a predetermined type of recording/reproducing machine. A motor is provided in the adapter, and the motor operates in one direction to draw out the tape in the small tape cassette to form a predetermined tape path within the adapter, and operates in the opposite direction to draw out the tape in the small tape cassette. Since it is configured to drive a mechanism that stores the tape in the path into the small tape cassette, it is possible to approach automation of tape loading and unloading operations within the adapter, thereby improving operability. In addition, it is possible to stably pull out the tape from a small cassette at a constant speed when forming a tape path, and prevent accidents in which the tape is damaged due to excessive tape tension. Tape 4 on the tape path
Since the tape winding operation on the winding reel during storage in the mold cassette can be performed using the rotation of the motor, it has the advantage of further improving operability.

[Brief explanation of the drawing]

Figures la, b, c, d to 5 are explanatory diagrams of a small cassette housed in the adapter according to the present invention, and Figures 6 to 1
Fig. 0 is an explanatory diagram of an example of an adapter used when a small cassette is attached to a standard type recording/reproducing device, Figs. 11 to 13 are explanatory diagrams of embodiments of the adapter according to the present invention, Fig. 14, FIG. 15 is a diagram illustrating a state in which a small cassette is attached to a recording/reproducing machine exclusively for small cassettes. A.・…． Entire small cassette, B, C...Cassette adapter, 1, 52... Upper half, 113... Arc-shaped notch, 2, 51... Lower half, 2a, 28, 2
9... Concavity, 2d... Accidental erasure prevention claw,
21,. 212... Notch, 3... Opening/closing lid, 3a... First abutting part, 3b... Second connecting part, 4, 104, 118, 120c, 137 ,145,
152, 154, 157, 164... Support shaft, 5a, 5b
, 111... Cut groove, 5c, 56b, 110, 1
16a... Protruding portion, 6... Substantially U-shaped spring, 7... Sliding piece, 8... Supply side reel, 9
...Take-up reel, 10...Magnetic tape,
1 1a, 1 1b, 12a, 12b, 64, 65...
Guide pole, 13... lower flange, 14, 15...
... Uneven groove, 16... Leaf spring, 17... Hole for inserting the supply side reel disk, 18... Rattan fixed to the lower half, 19... Screw, 22... Lower flange, 2
3...Teeth, 24, 36, 37, 38, 109...
・Notch part, 25...Flake, 25a...Shoe part, 25b...Other end of brake, 26...
A shaft integrally formed in the lower half, 27...spring,
32, 33... Holes formed in the lower half, 53...
... Storage section, 54, 55 ... Position regulating protrusion, 5
6...Annular holding body, 56a...7 Center hole with par, 58, 59...Pin, 60, 61
, 169, 163... Gear, 60a... Winding side reel disk insertion part, 61a, 61b.・・・． ...Booper, 80... Supply side reel disk, 101,
102...Hinge, 103...Opening/closing lid of force set adapter B, 105...Spring, 106, 119
, 146, 158, 160... Lever, 106
a, 106b... Inclined cam surface, 107...
...Protrusion, 108...Claw part, 1 12, 1 1
3... Guide projection, 115... Shaft, 11
6... Annular holder, 117... Removal lever, 120... Erroneous erasure prevention lever, 120
a...One end, 120b...detection protrusion,
120d... Coil spring, 121, 12
2,123,124...notch, 125,126,127
, 128... Opening, 129... Pressing spring, 130... Transparent plate, 131
...Notch opening, 132...Cassette housing, 133...Protrusion on the bottom of the cassette housing, 134...O-ding pole, 135...Capstan, 136...Spring, 138,151,1
65... Rotating lever, 138a... Pressing part, 1
40, 141... Guide roller, 142... First motor, 143... Second motor, 144... Sliding lever, 146, 156... L-shaped lever,
146', 150, 155... Connector, 147...
...Protrusion, 149...Operation lever, 153...
1st loading lever, 161...Timing belt, 162...2nd loading lever/ゞ・〇Figure 3 *Figure l o Screen l figure b Figure l C Screen l figure d Figure 2 Figure 4 o Figure 4 Figure b Figure 5 Figure 9 Figure 7 Figure 8 Blind l○ Figure Blind Figure 6 Figure Traditional l Figure 2 Blind Figure l3 Figure Figure l5 Figure

Claims (1)

[Scope of Claims] 1. An adapter for storing and using a tape cassette smaller than a predetermined type of tape cassette when the tape cassette is attached to a predetermined type of recording/reproducing machine,
Inside the adapter, the tape in the small tape cassette is pulled out by its one-way movement to form a predetermined tape path within the adapter, and the tape in the tape path is stored in the small tape cassette by movement in the opposite direction. A small tape cassette adapter characterized by having a built-in motor that drives the mechanism. 2. A small tape cassette according to claim 1, wherein the motor rotates the take-up reel of the small tape cassette in the tape winding direction when the mechanism is operated in the opposite direction. adapter.