JP2511921B2 - Magnetic recording / reproducing device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus for recording / reproducing information using a magnetic tape, and in particular, two magnetic tapes are loaded and one of them is loaded. The present invention is characterized by a continuous drive mechanism configured to automatically start recording / reproducing of another magnetic tape when the recording / reproducing operation of the magnetic tape is completed.

2. Description of the Related Art In recent years, a double cassette tape recorder has been developed which uses two magnetic tapes and starts recording / reproducing operation of another magnetic tape when the recording / reproducing operation of one magnetic tape is completed.

Hereinafter, a continuous drive mechanism of a conventional double cassette tape recorder will be described with reference to the drawings.

FIG. 6 to FIG. 9 are plan views showing essential parts showing different operating states of the conventional double cassette tape recorder.

In the drawing, I and II are the first and second drive mechanisms for driving the magnetic tape, respectively.
The reproduction rod 31 of the drive mechanism I is pushed in the direction of arrow A, and the reproduction rod 31 is driven by a known lock mechanism (not shown) as shown in FIG.
By holding in a pushed state, a mechanism (not shown) interlocking with the regeneration rod 31 is brought into a regeneration state. At this time, the recessed portion 31 formed on the side surface of the reproduction rod 31.
The connection lever 32, whose tip is engaged with a, rotates counterclockwise around the fulcrum 32a, and the state shown in FIG. 7 is obtained. Further, the force of the spring 33 applied between the other end of the connecting lever 32 and the first standby lever 34 causes the first standby lever 34 to rotate clockwise about the shaft 34b and to move to the second standby lever 34. The protrusion 35a of the lever 35 prevents the lever 35 from holding it in the state shown in FIG.

Next, from the state shown in FIG. 7, the reproducing rod of the drive mechanism II is
40 is pushed in the direction A, and the reproduction rod 40 is held in a pushed-in state as shown in FIG. 8 by a known lock mechanism (not shown). At this time, the head substrate 42 on which a recording / reproducing head or the like which interlocks with the reproducing rod 40 is mounted via the head substrate spring 41 also moves in the direction A, and the protrusion 42a provided on the head substrate 42 engages with the head substrate 42. The suspending lever 37 that fits is the shaft 37b.
It rotates in the clockwise direction centering around and becomes the state of FIG.

At this time, the second standby lever 35 also rotates clockwise around the shaft 37b by the protrusion 37a of the temporary stop lever 37, but the protrusion 35a of the second standby lever 35 is the first protrusion.
Of the standby lever 34 of the second
Since the standby lever 35 is prevented from rotating in the clockwise direction and the state shown in FIG. 8 is obtained, the head substrate 42 is also blocked at the position shown in FIG. Therefore, the pinch roller bracket 36 is also
Head substrate 42 is moved clockwise about 36a.
The state shown in FIG. 8 is prevented by the recessed portion 42b formed in the pinch roller 39, and the pinch roller 39 is held in a temporary stopped state without being pressed against the capstan 38. In this state, when the cassette tape in the reproduction (recording) state of the drive mechanism I is automatically stopped at the tape end or is stopped by pressing the stop button (not shown), the reproduction rod 31 is unlocked. , The state of FIG. 9, that is, the original state of FIG. 6 is restored.

In conjunction with this, the connection lever 32 in the state shown in FIG. 8 also rotates clockwise to return to the state shown in FIG. 9, and the first standby lever 34 in the state shown in FIG. 8 rotates counterclockwise. Since the state shown in FIG. 9 is reached, the first standby lever 34
The second standby lever 35, which has been blocked by the notch 34a, is unlocked, and the head substrate spring 41 provided between the reproducing rod 40 and the head substrate 42 causes the head substrate spring 41 to move to the A direction. When the pinch roller 39 moves in the direction and reaches the reproduction state position shown in FIG. 9, the pinch roller 39 enters the state shown in FIG. 9 and is pressed against the capstan 38 to be in the reproduction (recording) state. As a result, the reproduction (recording) state is switched from the drive mechanism I to the drive mechanism II.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described configuration, the drive signal of the magnetic tape reproduced by the drive mechanism I is used when necessary.
I cannot record on the magnetic tape loaded in II.
That is, when the drive mechanism I is in the reproduction state, the drive mechanism II is inevitably set to the standby state as described above.

In order to solve this problem, in the magnetic recording / reproducing apparatus of the present invention, when the drive mechanism I is in the reproducing state, the drive mechanism II is set in the reproducing state by operating the reproducing rod. In such a case, the blocking means operates to put the drive mechanism II in the standby state, and when the drive mechanism I is in the reproducing state, the recording rod of the drive mechanism II is operated to set the recording state. In this case, the blocking function of the blocking means is automatically released.

Operation According to the above configuration, when the drive rod of the drive mechanism II is pressed when the drive mechanism I is in the playback state, the drive mechanism is driven.
II is set to a reproduction standby state and is automatically changed to the reproduction state when the reproduction operation of the drive mechanism I is completed. Further, even when the drive mechanism I is in the reproduction state, the recording rod of the drive mechanism II is set. The drive mechanism II can be set to a recording operation state by pressing.

Therefore, the reproduction signal from the tape driven by the drive mechanism I can be recorded on the tape driven by the drive mechanism II from the reproduction state.

Examples Hereinafter, examples of the present invention will be described with reference to the drawings.

1 to 5 are plan views of relevant parts showing different operating states of the magnetic recording / reproducing apparatus in one embodiment of the present invention.

In the drawing, I and II are the first and second drive mechanisms for driving the magnetic tape, respectively.

When the regeneration rod of the drive mechanism I in the stopped state shown in FIG. 1 is pushed in the direction of arrow A from the first position shown in FIG. 1 as shown in FIG. 2, it is pushed in by a known locking mechanism (not shown). It is held in the open state (second position). Along with the movement of the reproducing rod 1 from the first position to the second position, the head substrate 2 having a recording / reproducing head or the like which is interlocked by the reproducing rod 1 and the head substrate spring 5 is moved in the direction of arrow A. As a result, the pinch roller 3 is brought into pressure contact with the capstan 4 via an elastic body (not shown), and the I-th drive mechanism enters a recording or reproducing state.

Reference numeral 7 is a first relay play lever mounted slidably in the direction of arrow AA 'using the guide pins 14a, 14b planted in the mechanical chassis 4 of the drive mechanism II as guides. Spring hook formed on the play lever 7
A spring 6 is hooked between 7a and a spring hooking portion 1a formed on the reproducing rod 1. The bent portion 7b formed on the first relay play lever 7 by the elastic force of the spring 6
Is always contacted with the spring hook portion 1a of the reproducing rod 1, and as the reproducing rod 1 moves in the direction of arrow A, the elastic force of the spring 6 also reproduces the first relay play lever 7. It is moved together with the rod 1 in the direction of arrow A as shown in FIG.

Next, from the state shown in FIG. 2, the reproducing rod 11 of the drive mechanism II is
By pushing in the direction of the arrow A, the head substrate 9 having a recording / reproducing head or the like interlocked by the reproducing rod 11 and the head substrate spring 10 also moves in the direction of the arrow A, and a pinch roller via an elastic body (not shown). 13 is pressed against the capstan 12, and here the protrusion at one end of the head substrate 9
9a contacts one end 8a of the second relay play lever 8, and the second relay play lever 8 rotates in the direction of arrow B around the shaft 14c provided on the mechanical chassis 14 to form the second relay play lever. The cutout portion 8b of the first relay play lever 8 abuts on the protrusion 7c of the first relay play lever 7, and the rotation of the second relay play lever 8 is blocked.
Since the movement in the direction is also blocked, only the reproduction rod 11 moves from the first position to the second position, and a known locking mechanism (not shown)
Is held in the second position by. That is, the head substrate 9 is prevented from moving forward by the second relay play lever 8, and
And the second position, the pinch roller arm 13 that engages with one end 9b of the head substrate 9 and rotates clockwise about the shaft 13a does not rotate, and the pinch roller 13 does not rotate.
b is held in a state where it is not pressed against the capstan 12. (See FIG. 3) At this time, in the state of FIG. 3, only the drive mechanism I is in the recording / reproducing state, and the drive mechanism II is held in the standby state. From this state, when the recording and reproducing states of the drive mechanism I are automatically stopped at the tape end or when a stop button (not shown) is pressed to stop, the reproducing rod 1 is unlocked and the return spring ( 4) in the state shown in FIG. 4, that is, the first relay play lever 7 which moves from the second position to the first position and engages with the projection 1a of the reproducing rod 1 is also set to the first position. Move, and with this move the second
Of the first relay play lever 7 that was in contact with the cutout portion 8b of the relay play lever 8 of FIG.
The rotation prevention of the relay play lever 8 in the direction of arrow B is released, and the second relay play lever 8 rotates clockwise, and at the same time, the second relay play lever 8 moves from the third position to the second position. The head substrate 9 which has been prevented from moving to the second position is moved to the second position by the force of the head substrate spring 10 in the direction A, and the pinch roller arm 13 engaging with the head substrate 9 is also rotated clockwise to move the pinch roller. 13b is pressed against the capstan 12 and is in a reproducing / recording state (4th
See figure). As a result, the reproduction / recording state is switched from the drive mechanism I to the drive mechanism II.

Next, a dubbing operation for recording a reproduction signal from the magnetic tape driven by the first driving mechanism on the magnetic tape driven by the second driving mechanism will be described.

While the reproducing rod 1 of the drive mechanism I is not being pressed, the recording rod 15 of the drive mechanism II is pushed in the direction of arrow A as shown in FIG. 5 to switch the recording / reproducing switching switch (not shown) and one end 15a of the recording rod 15. And one end 11a of the reproduction rod 11
Recording rod with playback rod 11 in the A direction at the same time by engaging
Push in conjunction with 15. The recording rod 15 and the reproducing rod 11 that have been pushed in are locked at the second position by a known lock mechanism, but at this time, the motor (not shown) that drives the drive mechanism II does not start and enters the recording standby state. Next, when the reproduction rod 1 of the drive mechanism I is pushed in the direction of arrow A to enter the reproduction mode state, the motors of the drive mechanisms I and II rotate simultaneously to form the dubbing state.

Next, when the drive mechanism I is already in the reproduction mode,
Recording of the magnetic tape loaded in the drive mechanism I is performed by the drive mechanism II.
When dubbing to the magnetic tape loaded in the recording medium, the recording rod 15 of the drive mechanism II is pushed from the first position to the second position in the direction of arrow A and is held at the second position by a known lock mechanism. At that time, one end 16a of the relay play release lever 16 abuts on the bent portion 15b at the tip of the recording rod 15, and the drive mechanism I
The bent portion 7d at the tip of the first relay play lever 7 is formed in the notch 16b formed at one end of the relay play release lever 16 rotatable about the support shaft 14d that is set up in the mechanical chassis 14 of I. When engaged, the relay play releasing lever 16 moves when the recording rod 15 moves from the first position to the second position.
It rotates in the direction of arrow D about the support shaft 14d, so that the relay play lever 7 is pushed in the direction C against the elastic force of the spring 6 and is returned from the second position to the first position. Also recording rod
The one end 15a of 15 contacts the one end 11a of the reproducing rod 11, the reproducing rod 11 also moves to the second position in conjunction with the movement of the recording rod 15, and the head substrate 9 connected by the head substrate spring 10 is connected.
At the same time, the projection 9a at one end of the head substrate 9 comes into contact with one end 8a of the second relay play lever 8, and this second relay play lever 8 is the same as the first relay play lever 7. By the return movement to the position 1, the rotation in the direction of the arrow B is not blocked, the head substrate 9 can be moved from the first position to the second position, the pinch roller 13a is pressed against the capstan 12, and the drive mechanism II records. It becomes a state. That is, even in such a case, one-touch dubbing can be easily performed.

As described above, according to the present invention, continuous reproduction drive can be expected by only operating one operation button of each of two drive mechanisms that drive two magnetic tapes.
Further, when necessary, the drive mechanism II can be set in the recording state even when the drive mechanism I is in the reproducing state.

[Brief description of drawings]

1 to 5 are plan views of the essential parts showing the respective operation steps of one embodiment of the magnetic recording / reproducing apparatus of the present invention, and FIGS. 6 to 9 show the operation steps of the conventional magnetic recording / reproducing apparatus. It is a principal part top view shown. 1,11 …… Reproduction rod, 2,9 …… Head substrate, 3,13b …… Pinch roller, 4,12 …… Capstan, 7 …… First relay play lever, 8 …… Second relay play Lever, 13
...... Pinch roller arm, 14 …… Mechanical chassis, 15 ……
Recording rod, 16 …… Relay play release lever.

Claims (1)

(57) [Claims] 1. A first moveable between a first and a second position.
When the first reproduction rod is located at the second position in conjunction with the movement of the reproduction rod of the first magnetic tape, the first pinch roller is pressed against the first capstan to move the first magnetic tape at a constant speed. The second drive rod is moved to the fourth position in association with the movement of the first drive mechanism that drives the vehicle for reproduction and the second drive rod that is movable between the third and fourth positions. A second drive mechanism that presses the second pinch roller against the second capstan via an elastic body and causes the second magnetic tape to run at a constant speed for reproduction when positioned. First
The second pinch roller is pressed against the second capstan in conjunction with the movement of the second reproduction rod to the fourth position when the second reproduction rod is located at the second position. Blocking means for blocking is provided, and the elastic body urges the second pinch roller toward the second capstan.
And the fifth recording rod provided so as to be movable in the sixth position.
Magnetic recording / reproducing apparatus provided with a releasing means for moving the reproducing rod from the third position to the fourth position along with the movement from the position to the sixth position, and for releasing the blocking operation of the blocking means. .