JPH0636510Y2 - Reciprocating tape recorder operation switching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an operation switching device for a reciprocating tape recorder.

(B) Conventional technology In a conventional general reciprocating tape recorder, a tape running reversal button is provided separately from the playback button, and the tape running reversing button is operated. By operating the tape reversing mechanism, the tape running direction can be reversed during reproduction.

In such a tape recorder, since the reversing button is provided independently of the other operation buttons, there is a possibility that the tape running direction may be reversed by mistaken operation during recording.

For this reason, a mechanism has been adopted in which the reversing button cannot be operated during recording, and a mechanism in which if the reversing button is erroneously operated, it returns to the stopped state.

Further, a conventional device in which the reversing button is also used as the fast-forwarding operation button is described in JP-A-60-98550 (G11B15 / 44).

(C) Problems to be solved by the invention As described above, by using the fast-forwarding operation button during tape playback, by operating the fast-forwarding operation button, the tape playback direction is set to the first direction from the first direction. If it is configured to switch to two directions or from the second direction to the first direction, there is an advantage that it is not necessary to prepare an independent reversing button, but
There is a problem that the tape fast-forward operation from the reproduction state, that is, the cue operation cannot be executed.

Further, the technique disclosed in the above-mentioned prior art is merely intended to reverse the tape running direction during reproduction, and when applied to a reciprocating tape recorder having a recording function, the tape running direction is changed during recording. There is a problem that it is reversed by mistake.

For this reason, the applicant of the present application has proposed in Japanese Patent Application No. 62-248656 a structure in which the running direction of the tape can be reversed by operating the reproducing operation lever during reproduction.

According to such a configuration, the tape fast-forward operation from the playback state,
That is, if the playback operation lever and the fast-forwarding operation lever are adjacent to each other during the cue operation, there is a concern that the playback operation lever may be operated together with the fast-forwarding operation lever, and the operation for tape reversal may be erroneously performed. I found a problem that would activate the lever.

(D) Means for Solving the Problems In view of the above problems, the present invention provides: (a) a reproduction operation lever that moves from a non-operation position to an operation position by manual pressing; and (b) a reproduction operation lever. A playback interlocking lever that moves from a non-operating position to an operating position in association with the movement to the operating position; (c) a lock lever having a lock portion that locks the operating position of the playback interlocking lever; and (d) the locking lever. A positioning member for positioning the reproduction operation lever at an intermediate position between the operation position and the non-operation position by releasing the manual pressing of the reproduction operation lever when the reproduction interlocking lever is locked in the operating position by (c) ) In response to the positioning of the reproduction operation lever to the intermediate position by the positioning member, the operation preparation position is set, and the reproduction operation lever is operated from the intermediate position to the operation position. And a tape reversing operation lever which is engaged with the reproduction operation lever and is moved in a fixed direction from the operation preparation position toward the operation position,
(F) A fast-forward (or rewind) operation lever provided so as to be operable during reproduction, and (g) the fast-forward (or rewind).
Control lever for moving the tape inversion actuating lever to a position that avoids engagement with the reproducing operation lever in response to the operation of the reproducing operation lever, and by operating from an intermediate position of the reproducing operation lever during reproduction. Characterized by activating the tape reversing operation lever and avoiding the tape reversing operation lever from being actuated by the reproduction operation lever when the fast forward (or rewind) operation lever is operated during reproduction. It proposes an operation switching device for a reciprocating tape recorder.

(E) Operation From the stopped state, the playback operation lever is manually pressed to move from the non-operation position to the operation position, and when the manual pressure is released, the playback operation lever is positioned at the intermediate position between the non-operation position and the operation position. In this reproducing state, by operating the reproducing operating lever from the intermediate position to the operating position, the tape reversing operating lever can be moved to the operating position and the tape reproducing direction can be switched.

If you operate the fast-forward (rewind) operation lever during playback,
The control lever moves to set the tape inversion actuating lever to the non-operation position, and in this cue (review) state, even if the reproducing operation lever is mistakenly operated, the tape inversion operation lever can be activated. Absent.

(F) Embodiment An embodiment of the device of the present invention shown in the drawings will be described below.

(1) is a chassis for assembling a tape recorder mechanism. The chassis (1) has a recording operation lever (2) provided with a recording button, a reproduction operation lever (3) provided with a reproduction button, and the reproduction operation lever. A reproduction interlocking lever (4) interlocking with (3), a stop operation lever (5) provided with a stop button, and a fast-forward operation lever (16) provided with a fast-forward button are movably provided in the direction of arrow AA '. Has been.

Further, a lock lever (6) and a control lever (17) are provided on the chassis (1) so as to be movable in the arrow BB 'direction.

The recording operation lever (2), the reproduction operation lever (3), the reproduction interlocking lever (4), the stop operation lever (5) and the fast-forward operation lever (16) are respectively return springs (7) (8) ( 9) (10) (18) urges in the direction of arrow A ', and as shown in FIG. 1, the operating levers (2) (3) (5) (16) are set to non-operating positions. Along with this, the reproduction interlocking lever (4) is set to the non-operating position.

The lock lever (6) and the control lever (17) are biased in the direction of arrow B'by return springs (11) and (19), respectively.

The recording operation lever (2) is formed with a lock piece (2a) that engages with the lock claw (6a) of the lock lever (6), and the recording operation lever (2) is locked in the operation position. .

Further, the recording operation lever (2) is formed with a contact protrusion (2b), and the reproduction operation lever (3) is contacted with the corresponding contact protrusion (2b) by the first contact protrusion (3a). Is formed, and the operation lever for reproduction (3) is operated together with the operation lever for reproduction (3) from the non-operation position to the operation position.

The reproduction operation lever (3) is formed with a second contact protrusion (3b), and the reproduction interlocking lever (4) is contacted with the second contact protrusion (3b). ) And positioning protrusions (4
b) is formed, and the second contact projection (3b) contacts the contact projection (4a) by the operation of the reproduction operation lever (3), and the reproduction interlocking lever (4) does not operate. Interlocks from position to operating position.

The reproduction interlocking lever (4) is formed with a lock piece (4c) that engages with the lock claw (6b) of the lock lever (6), and the reproduction movement lever (4) is locked in the operating position.

The positioning protrusion (4b) of the reproduction interlocking lever (4) is returned to the non-operating position direction (arrow A'direction) by the return spring (8) when the operation of the reproduction operating lever (3) is released. The second contact protrusion (3b) of the reproduction operation lever (8) is brought into contact with the reproduction operation lever (3) to position the reproduction operation lever (3) at an intermediate position between the operated position and the non-operated position.

A release piece (5a) joined to the inclined surface (6c) of the lock lever (6) is formed on the stop operation lever (5), and the lock lever (6) is operated by operating the stop operation lever (5). Moves in the direction of arrow B against the spring (11) to unlock the recording operation lever and the playback interlocking lever.

Reference numeral (12) is an operation lever which constitutes a part of a tape reversing operation mechanism in which a long hole (14) is combined with a support shaft (13) on the chassis (1) and is rotatable. ) Is always urged by the spring (15) in the direction of the arrow A ′ and is also urged to rotate in the clockwise direction, one end of which is in contact with the protrusion (6d) of the lock lever (6) and the other. An operation step portion (12a) is formed at the end so as to face or separate from the control projection (3c) of the reproduction operation lever (3).

The operating lever (12) operates for tape reversal by moving the control projection (3c) of the reproducing operating lever (3) in the operating position facing the operating step (12a) in the direction of arrow A. To do.

When the reproduction interlocking lever (4) is moved to the operation position in the direction of arrow A, a slide board (not shown) on which a magnetic head is mounted is interlocked in the same direction to set the recording and reproduction position. Has been done.

The fast-forward operation lever (16) is formed with a lock piece (16a) that engages with the lock claw (6e) of the lock lever (6), and is locked in the operation position when operated when stopped. When operated during playback, it will be unlocked.

A control pin (16b) joined to the inclined surface (17a) of the control lever (17) is formed on the fast-forward operation lever (16), and is controlled by operating the fast-forward operation lever (16). Lever (17) is against arrow (B) against spring (19).
Move in the direction.

A control projection (17b) is formed on the control lever (17), and when it moves in the direction of arrow B, it abuts against the operating lever (12) and resists the operating lever (12) against the spring (15). It is configured to rotate counterclockwise.

The device of the present invention is configured as described above, and its operation will be described below.

In the stopped state shown in FIG. 1, the lock lever (6)
Is moved in the direction of arrow B'by the spring (11), the actuating lever (12) whose one end abuts against the protrusion (6d) of the lock lever (6) is operated by the spring (15). It is in the position rotated in the direction.

When the reproduction operation lever (3) is moved from the non-operation position in the direction of arrow A as shown in FIG. 2 from such a stopped state,
During the movement, the second contact projection (3b) contacts the contact projection (4a) to interlock the reproduction interlocking lever (4) in the direction of arrow A. By this movement of the reproduction interlocking lever (4), the lock piece (4c) slides on the lock claw (6b), and the lock lever (6) is temporarily moved in the direction of arrow B against the spring (11). The protrusion (6d) of (6) causes the actuating lever (12) to rotate counterclockwise against the spring (15).

As the actuation lever (12) rotates counterclockwise in this way, the actuation step portion (12a) at the other end does not oppose the control projection (3c) of the reproduction operation lever (3) and is in a non-actuated position. Once, and when the reproducing operation lever (3) is completely moved to the operation position, the lock piece (4c) of the reproduction interlocking lever (4) moves to the lock lever (6) as shown in FIG. When the lock lever (6) gets over the lock claw (6b) and the spring (11) returns in the direction of arrow B ', the reproduction interlocking lever (4) is locked in the operating position.

When the pressing operation force on the reproducing operation lever (3) is released, the reproducing operation lever (3) moves in the direction of arrow A'by the return spring (8) as shown in FIG. Since the interlocking lever (4) is locked in the operating position by the lock lever (6), the second abutting protrusion (3b) contacts the positioning protrusion (4b) of the reproduction interlocking lever (4). , The reproducing operation lever (3) is positioned at an intermediate position between the operated position and the non-operated position, and at the same time, the actuating lever (12) has one end of the lock lever (6) having a protrusion (6d). ), The operating lever (12) is set to the operating position.

As described above, in the state where the reproducing operation lever (3) is positioned at the intermediate position, the reproducing interlocking lever (4) is locked at the operating position, and the slide substrate on which the magnetic head is mounted moves forward to the operating position. It becomes a reproduction state.

In order to set such a reproduction state to, for example, the reproduction state of the tape A surface and activate the tape reversing operation mechanism during this reproduction to the reproduction state of the tape B surface, the reproduction operation lever (at the intermediate position) ( As shown in FIG. 5, 3) is operated from the intermediate position to the operating position in the direction of arrow A.

By this movement of the reproducing operation lever (3), the control projection (3c) comes into contact with the operation step portion (12a) of the operation lever (12) located in the operation position, and the operation lever (12) is interlocked. Then, it moves in the direction of arrow A, and the tape reversing operation mechanism is brought into an operating state.

Therefore, the operation of the tape reversing operation mechanism causes the tape B
When the operation lever for reproduction (3) is released after the tape reversing operation mechanism has been activated and the operation lever for reproduction (3) is released, the reproduction operation lever (3) is moved to the intermediate position shown in FIG. Move back. Therefore, when the reproducing operation lever (3) is operated again from the intermediate position to the operating position, the tape reversing operation mechanism can be operated to switch to the reproduction state of the tape A surface.

Next, the recording state will be described.

When the recording operation lever (2) is moved in the direction of arrow A from the non-operation position from the stopped state, the lock piece (2a) slides on the lock claw (6a) of the lock lever (6), and the lock lever (6). ) Is temporarily moved in the direction of arrow B against the spring (11), and the recording operation lever (2) is moved to the lock piece (2
a) is locked with respect to the lock claw (6a) and is set to the operation position.

By the movement of the recording operation lever (2), the contact protrusion (2b) contacts the first contact protrusion (3a) and the reproduction operation lever (3) moves together from the non-operation position to the operation position. Is
Further, by the movement of the reproduction operation lever (3), the second contact protrusion (3b) contacts the contact protrusion (4a) and the reproduction interlocking lever (4) moves together from the non-operating position to the operating position. The lock piece (4c) of the reproduction interlocking lever (4) is locked to the lock claw (6b) of the lock lever (6) and set to the operating position.

In this recording state, the reproducing operation lever (3) is moved to the operating position as in the reproducing state described above because the recording operation lever (2) is locked in the operating position by the lock lever (6). It cannot be returned to the intermediate position and is held in the operating position.

Therefore, at this time, the operating lever (12) is not operated due to the inability to operate the reproducing operation lever (3), and it is possible to prevent the tape reversing operating mechanism from entering the operating state.

When the stop operation lever (5) is moved in the direction of arrow A in the playback state or the recording state, the release piece (5a) is joined to the inclined surface (6c) of the lock lever (6), 6) is moved in the direction of arrow B against the spring (11) to unlock the playback interlocking lever (4) and the recording operation lever (2) to return to the stopped state shown in FIG. You can

Next, in the playback state shown in FIG. 4, when the fast forward operation lever (16) is operated to execute the cue operation,
As shown in the figure, the control pin (16b) of the fast-forward operation lever (16) is joined to the inclined surface (17a) of the control lever (17),
The control lever (17) resists the spring (19) and is indicated by arrow B.
Move in the direction. Therefore, the control projection (17b) of the control lever (17) abuts the actuating lever (12), and rotates the actuating lever (12) counterclockwise against the spring (15). The actuating lever (12) is set in a non-actuating position where the actuating step portion (12a) does not face the control projection (3c) of the reproducing operation lever (3).

Therefore, even if the reproducing operation lever (3) is accidentally operated from the intermediate position to the operation position in the cue operation state,
The operating lever (12) is not moved in the direction of arrow A, and the tape reversing operating mechanism is not operated.

In the present embodiment, the case of the cue operation by the fast-forward operation lever has been described, but it is needless to say that the same operation is performed when the review operation is executed by the rewind operation lever. Absent.

(G) Effect of the Invention As described above, the present invention positions the reproducing operation lever at an intermediate position between the operating position and the non-operating position in the reproducing state, and moves the reproducing operation lever from the intermediate position to the operating position. By moving the operation lever of the tape reversing mechanism to the operating state to reverse the running direction of the tape, and when operating the fast forward (rewind) operation lever during playback, the control lever moves and the tape reverses. Since the operation lever is set to the non-operation position, it is not necessary to separately provide the tape reversing button, and the reproducing operation button can be used also as the reversing button, and the cue ( It is possible to reliably prevent the reversing operation in the tape running direction in the (review) state, and it is extremely useful as an operation switching device of a reciprocating tape recorder.

[Brief description of drawings]

FIG. 1 shows an embodiment of the device of the present invention, FIG. 1 is a plan view in a stopped state, FIGS. 2 and 3 are plan views in different states during the reproduction state, and FIG. 4 is a plan view in the reproduction state. 5 is a plan view of the tape reversing operation state in which the reproducing operation lever is operated from the state of FIG. 4, and FIG. 6 is a plan view of the queuing state. (2) …… Recording operating lever, (3) …… Playback operating lever, (4) …… Playback interlocking lever, (6) …… Lock lever, (12) …… Operating lever, (3a) …… First contact projection, (3b) ... Second contact projection, (4b) ... Positioning projection, (16) ... Fast forward operation lever, (17) ... Control lever.

Claims (1)

[Scope of utility model registration request] 1. A reproduction operation lever that is moved from a non-operation position to an operation position by manual pressing, and (b) A non-operation position to an operation position in relation to movement of the reproduction operation lever to the operation position. (C) a lock lever having a lock portion that locks the operating position of the playback interlocking lever, and (d) playback when the playback interlocking lever is locked in the operating position by the lock lever. A positioning member for positioning the reproducing operation lever at an intermediate position between the operating position and the non-operating position by releasing the manual operation of the reproducing operation lever; and (e) positioning the reproducing operation lever at the intermediate position by the positioning member. Is set to the ready position in response to
An operation lever for tape reversal which is engaged with the operation lever for reproduction by an operation from an intermediate position of the operation lever for reproduction and is moved in a fixed direction from an operation preparation position to an operation position; A fast-forward (or rewind) operation lever that is provided so that it can be operated during playback, and (g) the tape-reversing operation lever in response to the operation of the fast-forward (or rewind) operation lever. It consists of a control lever that moves to a position that avoids the engagement with, and operates the tape reversing operation lever by operating from the intermediate position of the reproduction operation lever during reproduction, and fast forward (or rewind) operation during reproduction. The operation switching of the reciprocating tape recorder is characterized in that when the lever is operated, the reversing operation lever is configured to prevent the tape reversing operation lever from being operated. Apparatus.