JPH0231364A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To continuously record or reproduce a signal to two tape cassettes by causing a mounting means to a tape driving means to be independently exist to the two tape cassettes which are simultaneously received. CONSTITUTION:When a second tape cassette 7 is inserted to a second holder 5, a list stand 35 vertically falls down to a constant position according to a command from a control circuit 40. When such operation is detected by a detecting switch 37, the revolution of a motor 29 is transmitted to a gear 27 and a first turning arm 15 is turned up to the constant position. Then, a first cassette holder 4 moves up to a position A. Here, another first tape cassette 6 is inserted from an inserting port 3 to a first cassette holder 4 and the reception of the tape cassette is finished. The tape cassette is mounted to a chassis 8 in a position C and the recording or reproducing of the signal is executed. Thus, it is not necessary to exchange the tape cassette and the recording or reproducing of the signal can be continuously executed to the two tape cassettes.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording and reproducing apparatus equipped with a mechanism for attaching and detaching a cassette containing a magnetic tape.

2. Description of the Related Art As a conventional technology, there is a magnetic recording and reproducing apparatus equipped with a front-loading type cassette loading mechanism, as shown in Machine Design Vol. 28, No. 12 (November 1984 issue) PL40, for example. The above-described conventional magnetic recording/reproducing device will be described below with reference to the drawings.

FIGS. 7 and 8 are side views of main parts of a front-loading type cassette loading mechanism included in a conventional magnetic recording/reproducing apparatus. In the figure, a tape cassette insertion slot 50 is provided on the main surface of the magnetic recording/reproducing device.

The cassette holder 51 holds a tape cassette 52, and transports the tape cassette 52 along guide grooves 54a, 54b, and 54C formed in the vertical support plate 53 to a position where it is attached to a tape drive device (not shown). do.

An L-shaped rack gear 56 is formed on the side plate 55 of the cassette holder 51 and meshes with a rack drive gear 57. A gear 60 meshes with a worm gear 59 integrally formed on the motor shaft of the motor 58, and a gear train 61. [i2. The rotation of the motor 58 is transmitted to the rack drive gear 57 by G3.

The operation of the conventional magnetic recording/reproducing apparatus configured as described above will be described below.

The tape cassette 52 is inserted into the cassette holder 51 at position A in FIG. 7 from the tape cassette insertion opening 50. Thereafter, the motor 58 rotates, and its rotation is transmitted to the rack drive gear 57 via the worm gear 59, gear 60, gear train fit, G2, and 63. Since this rack drive gear 57 meshes with the rack gear 5B formed on the side plate 55 of the cassette holder 51, the rack drive gear 57
Due to the rotation of the cassette holder 51, the guide groove 54a,
You will be guided to 54 b and 54 c. Then, as shown in FIG. 8, although not shown, the tape cassette 52 is installed in the tape drive device at position B.

When the tape cassette 52 is to be taken out from the magnetic recording/reproducing apparatus, the motor 5B is rotated in the reverse direction to perform a reverse operation to that described above, and the tape cassette 52 can be taken out.

Problems to be Solved by the Invention However, with the above configuration, only one tape cassette can be inserted into the magnetic recording/reproducing device, so it is necessary to continuously record signals on two tape cassettes or to record signals on two tape cassettes. When the cassettes are played back continuously, the user has to replace the tape cassettes, which is time consuming and troublesome.

The present invention solves the above-mentioned conventional problems by storing two tape cassettes simultaneously in a magnetic recording/reproducing device.
It is an object of the present invention to provide a magnetic recording/reproducing device that enables continuous recording or reproduction of book tape cassettes.

Means for Solving the Problems In order to achieve this object, the magnetic recording and reproducing apparatus of the present invention has an insertion slot into which a first tape cassette and a second tape cassette are inserted, and an insertion slot into which a first tape cassette or a second tape cassette is inserted. a tape drive means for driving the magnetic tape in the tape cassette; a first mounting means for moving and mounting the first tape cassette from a first position where it is inserted into the insertion slot to a second position where it is mounted on the tape drive means; moving means for moving the tape cassette from the first position to a third position that does not interfere with the mounting path of the first tape cassette; and a second mounting means for moving and mounting the second tape cassette from the third position to the second position. It is composed of.

Effect of the present invention With the above-described configuration, two tape cassettes can be stored simultaneously in the magnetic recording/reproducing device, and since there is an independent mounting means for mounting each tape cassette on the tape drive means, the two tape cassettes can be stored simultaneously in the magnetic recording/reproducing device. Signals can be continuously recorded or played back on tape cassettes.

EMBODIMENT A magnetic recording/reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

1 to 4 are side views of essential parts of a tape cassette loading/unloading mechanism of a magnetic recording/reproducing apparatus according to an embodiment of the present invention, FIG. 5 is a front view of essential parts of the same mechanism, and FIG. FIG. 3 is a plan view of the main parts of the mechanism.

The magnetic recording/reproducing device 1 (hereinafter referred to as the device) is attached to the front panel 2.
It has an insertion opening 3 into which a tape cassette is inserted. Further, a tape cassette device removal mechanism shown in FIGS. 1 to 6 is constructed within the device 1. The first cassette holder 4 and the second cassette holder 4
The cassette holder 5 holds a first tape cassette 6 and a second tape cassette 7 inserted from the insertion opening 3, respectively.

A pair of vertical support plates 9. are provided on the sides of the chassis 8. 10 is vertically fixed, and a vertical support plate 9. Guide grooves 11a and Ilb for the first cassette holder 4 and guide grooves 12a and 12b for the second cassette holder 5 are formed in the IO.

Here, the first mounting means and the second mounting means will be explained.

The first cassette holder 4 has bins 13a and 13b.

14a and 14b are planted, and bins 13a and 14b are planted.
14a slides in the guide groove 11a, and the bottles 13b and 14b slide in the guide groove 11b. Further, the pin 13a is engaged with the long groove I6 of the first rotating arm 15, and the pin 14a is engaged with the long groove 18 of the first rotating arm I7. The first cassette holder 4 is connected to the first rotating arm 15. 17 rotates around the fixed synchronous shaft 13, the pins 13a,
14a are the long grooves 18. 18, so the guide groove 11a.

11b.

Similarly, the second cassette holder 5 has a pin 20a.

20 b, 21 a, 21 b are planted, and the pins 20 a, 21 a are connected to the guide groove 12 a.
b, 21b slide in the guide groove 12b. Also,
The pin 20a engages with the long groove 23 of the second rotating arm 22, and the pin 21a engages with the long groove 25 of the second rotating arm 24. The second cassette holder 5 has a second pivot arm 22 .
24 rotates around the fixed synchronous shaft 26, the pins 20a and 21a move into the long grooves 23, respectively.
．． 25, so the guide grooves 12a, 12b
It is guided by sliding along.

On the other hand, a gear 27 is integrally formed on the first rotating arm 15, and a detection switch 28 is engaged with the gear 27, so that the position of the first cassette holder 4 can be detected. It has become. Further, a detection switch 28 is engaged with a worm gear 30 that is integrally formed with the motor shaft 3 of the motor 29, so that the rotation of the motor 2B is controlled by the gear 2.
7.

Similarly, a gear 31 is integrally formed on the second rotating arm 22, and a detection switch 32 is engaged with the gear 31, so that the position of the second cassette holder 5 can be detected. It looks like this. Further, a detection switch 32 is engaged with a worm gear 34 that is integrally formed on the motor shaft of the motor 33, so that the rotation of the motor 33 is controlled by the gear 3.
1.

Next, the transportation means will be explained.

The lift table 35 is located under the second cassette, and vertically moves the second cassette holder up and down along the guide grooves 12a and 12b. A rack gear 3B is formed on the lift stand 35, and the rack gear 36 meshes with a detection switch 37 having a gear portion. The detection switch 37 detects the position of the lift table 35.

Further, a detection switch 37 is engaged with a worm gear 39 formed integrally with the motor shaft of the motor 38, so that the rotation of the motor 38 is transmitted to the rack gear 3B.

The control circuit 40 includes the detection switch 28. 32. 37 and motor 29. 33. 38, and controls the rotation timing of the three motors.

The tape drive means includes a drum 41. which records or reproduces signals on the magnetic tape in the first tape cassette 6 or the second tape cassette 7 placed on the chassis 8. Although not shown, it is comprised of a capstan that feeds the magnetic tape at a constant speed, a winding mechanism that winds up the magnetic tape, and the like.

The operation of the magnetic recording and reproducing apparatus configured as described above will be described below with reference to the drawings.

When the first cassette holder 4 and the second cassette holder 5 are in the state shown in FIG. 7 from the insertion port 3 to position A. When the second tape cassette 7 is inserted into the second cassette holder 5, the motor 38' rotates in response to a command from the control circuit 40, and the rotation is transmitted to the rack gear 3B via the worm gear 39 and the detection switch 37, and the lift The platform 35 is vertically lowered from the position shown in FIG. 1 to the position shown in FIG. Accordingly, the second cassette holder 5 and the second tape cassette 7, which were on the lift stand 35, vertically descend from position A to position B shown in FIG. 2 along the guide grooves 12a and 12b. When the detection switch 37 detects that the lift platform 35 has vertically descended to the position shown in FIG. 2, a command is sent from the control circuit 40 to stop the motor 38 and drive the motor 29. When the motor 29 rotates in response to this command and the detection switch 37 detects that the lift platform 35 has vertically descended to the position shown in FIG.
8 to the gear 27, and the first rotating arm I5 rotates about the synchronizing shaft 19 from the position shown in FIG. 1 to the position shown in FIG. At the same time, the first cassette holder 4 is connected to the long groove of the first rotating arm 15! Since the long groove 18 of the first rotating arm 17 and the pin 14a are engaged with each other, the guide grooves 11a and Ilb are moved from the position shown in FIG. 1 to the position A shown in FIG. You will be guided along the Now, insert another first tape cassette 6 from the insertion slot 3 into the first cassette holder 4 at position A, and now two tape cassettes are stored in the device 1. Become.

After the two tape cassettes are stored in the device 1, the motor 33 is rotated by a command from the control circuit 40, and the rotation is transmitted through the worm gear 34 and the detection switch 32 to the gear 3.
1, and the second rotating arm 22 rotates counterclockwise about the periodic shaft 26 from the position shown in FIG. 2 to the position shown in FIG. At the same time, in the second cassette holder 5, the long groove 23 of the second rotating arm 22 and the pin 20a are engaged, and the long groove 25 of the first rotating arm 24 and the pin 21a are engaged, so that the second cassette holder 5 is It is guided along guide grooves 12a and 12b from position B shown in FIG. 3 to position C shown in FIG. Therefore, the second tape cassette 7 is mounted on the chassis 8 at position C in FIG. 3, and signals are recorded or reproduced.

Next, after a magnetic tape end detection switch (not shown) detects that the recording or reproduction of a signal on the second tape cassette 7 has been completed, the motor 33 is started to rotate as described above in response to a command from the control circuit 40. Rotate in the opposite direction.

As a result, the second rotating arm 2
2 rotates clockwise around the synchronizing shaft 2G from the position shown in FIG. 3 to the position shown in FIG.
12b to position B shown in FIG.

Here, when the detection switch 32 detects that the second rotating arm 22 has rotated to the position shown in FIG. 4, a command is sent from the control circuit 40 to stop the motor 32 and drive the motor 29. . This command signal causes the motor 23 to rotate, and the rotation is transmitted to the gear 27, which causes the first rotation arm 15 to rotate as the synchronous shaft! 9 in a counterclockwise direction from the position shown in FIG. 3 to the position shown in FIG.

At the same time, the first cassette holder 4 and the first tape cassette 6 are guided along the guide grooves 11a and llb to position C shown in FIG. 4. Therefore, the first tape cassette 6 is mounted on the chassis 8 at position C in FIG. 4, and signals are recorded or reproduced.

Next, the magnetic tape end detection switch (
(not shown), the motor 29 rotates in the opposite direction to the aforementioned rotational direction in response to a command from the control circuit 40. As a result, contrary to the above-described operation, the first rotating arm I5 rotates clockwise about the synchronizing shaft 13 from the position shown in FIG. 4 to the position shown in FIG. The holder 4 and the first tape cassette 6 have a guide groove 11a,
Ilb to position A shown in FIG.

The first tape cassette 6 at position A in FIG.
When the motor 29 is taken out of the
Rotate counterclockwise from the position shown in the figure to the position shown in FIG. At the same time, the first cassette holder 4 has a guide groove 11a.
, Ilb so that the first cassette holder 5 and the second tape cassette 7 do not interfere with vertical upward movement along the
You will be guided to the location shown in the figure.

Thereafter, when the detection switch 28 detects that the first rotating arm 15 has rotated to the position shown in FIG. 1, a command is sent from the control circuit 40 to stop the motor 29 and drive the motor 38. . In response to this command signal, the motor 38 rotates, the rotation is transmitted to the rack gear 36, and the lift platform 35 vertically rises from the position shown in FIG. 2 to the position shown in FIG.

Accordingly, the second cassette holder 5 and the second tape cassette 7 that were on the lift stand 35 are moved to the guide groove 12a,
12b from position B shown in FIG. 2 to position A shown in FIG. 1, the second tape cassette 7 can now be removed from the device 1.

Note that the order in which the two tape cassettes housed in the apparatus are mounted on the chassis is not limited to the order described in this embodiment.

Effects of the Invention As described above, the present invention provides an insertion slot for inserting a first tape cassette, a tape drive means for driving a magnetic tape in the first tape cassette or the second tape cassette,
The first tape cassette is moved from the first position where the first tape cassette is inserted into the insertion slot to the second position where the first tape cassette is mounted on the tape drive means.
a mounting means for moving the second tape cassette from the first position to the first position;
By providing a moving means for moving the second tape cassette to a third position that does not interfere with the mounting path of the second tape cassette, and a second mounting means for moving and mounting the second tape cassette from the third position to the second position, the second tape cassette can be mounted simultaneously in the apparatus. Can store two tape cassettes. Therefore, when it is desired to continuously record or reproduce signals on these two tape cassettes, there is no need for the user to change the tape cassettes as in the past, and operability is significantly improved. Furthermore, since signals can be selectively recorded or reproduced on the two tape cassettes, tape cassettes can be used differently depending on the field, which has great practical effects.

[Brief explanation of the drawing]

FIG. 1 shows the main part of the tape cassette loading/unloading mechanism of a magnetic recording/reproducing device according to an embodiment of the present invention (lr side view), and FIG. FIG. 3 is a side view of the mechanism with the second tape cassette brought to the drive means position, and FIG. 4 is a side view of the mechanism with the first tape cassette brought to the drive means position. Figure 5 is a front view of the main parts of the mechanism, Figure 6 is a plan view of the main parts of the mechanism, and Figures 7 and 8 are conventional magnetic recording and reproducing diagrams. It is a side view of the main part of the cassette loading mechanism in the apparatus. 4...O first cassette holder, 5... second cassette holder, 6... first tape cassette,
7...Second tape cassette, 15, 17...
first pivot arm, 22. 24... second rotating arm, 28. 32. 3711...detection switch, 29. 33. 38・・Fist motor,
35... Lift stand, 40... Control circuit. Name of agent: Patent attorney Shigetaka Awano and 1 other person Key - ↑j's 〃Se, ν ni Elk 5 - 〒2/+7+te/l- Elk q10 = - Juikamo ↑ Machimata f5. I7-・-shi1's rotation 4 2Z24...ya 2nd time V rear arm week Q + 佽 no 1 to~ku L/1 4 ri

Claims (1)

[Claims] an insertion slot for inserting the first tape cassette and the second tape cassette;
a tape driving means for driving the magnetic tape in the tape cassette; and a first loading means for moving and loading the first tape cassette from a first position where it is inserted into the insertion slot to a second position where it is previously loaded onto the tape driving means. means for moving the second tape cassette from the first position to a third position that does not interfere with the mounting path of the first tape cassette;
Move the 2nd tape cassette from the 3rd position to the 2nd position.
1. A magnetic recording and reproducing device comprising: second mounting means for moving and mounting the device to a position.