JPH0622075B2 - 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, the conventional one in which the reversing button is also used as the fast-forwarding operation button is disclosed in JP-A-60-98550 (G11B15 / 4).
4).

(C) Problems to be Solved by the Invention As described above, by using the fast-forwarding operation button during tape playback, by operating this fast-forwarding operation button, the tape playback direction is set to be greater than the first direction. If it is configured to switch to the second direction or from the second direction to the first direction, there is a merit that it is not necessary to prepare an independent reversing button. There is a problem that it cannot be done.

Further, the technique disclosed in the above-mentioned prior art is merely intended to repeat 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.

(D) Means for Solving the Problems In view of the above problems, the present invention aims to prevent reversal of the tape running direction during recording without using a fast-forwarding operation button, and (a) An operating lever during recording, (b) a playback operating lever that moves together from the non-operating position to the operating position in conjunction with the operation of the recording operating lever, and (c) a playback operating lever to the operating position. It has a playback interlocking lever that moves from a non-operating position to an operating position in relation to movement, (d) a lock part that locks the operating position of the recording operation lever, and a lock part that locks the operating position of the playback interlocking lever. A lock lever, and (e) a positioning member that positions the reproduction operation lever at an intermediate position between an operation position and a non-operation position when the reproduction interlocking lever is locked to the operation position by the lock lever, (f) By positioning member A tape reversing operation mechanism that is set to the operation preparation position in response to the positioning of the reproduction operation lever to the intermediate position, and is operated to the operation position by moving the reproduction operation lever from the intermediate position to the operation position. (G) The tape reversing mechanism is activated by operating the tape reversing operation mechanism from the middle position of the replaying operation lever during playback, and locking the replaying operation lever together with the recording operation lever during recording. It is an object of the present invention to provide an operation switching device for a reciprocating tape recorder, characterized in that the operating mechanism is configured to be in an inactive state.

(E) When the playback operation lever is operated from the operation stopped state, the playback operation lever can be positioned at an intermediate position between the non-operation position and the operation position to enter the playback state. By operating the operation lever from the intermediate position to the operation position, the tape reversing operation mechanism can be operated to the operation position and the tape reproduction direction can be switched.

When the recording operation lever is operated from the stopped state, the playback operation lever can be moved from the non-operation position to the operation position together and locked to set the recording state.In this recording state, the reproduction operation lever is in the operation position. Since it is locked, it cannot be operated and the tape reversing mechanism cannot be operated.

(F) Example An example 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,
A playback interlocking lever (4) interlocking with the playback operation lever (3),
The stop operating lever (5) provided with a stop button has an arrow A-
It is provided so as to be movable in the A'direction.

Further, a lock lever (6) is attached to the chassis (1) by an arrow B-
It is provided so as to be movable in the B'direction.

The recording operation lever (2), the reproduction operation lever (3), the reproduction interlocking lever (4) and the stop operation lever (5) are respectively return springs (7) (8) (9) (10). ), It is urged in the direction of the arrow A ′, and as shown in FIG. 1, the operating levers (2) (3) (5)
Is set to the non-operation position and the reproduction interlocking lever (4) is set to the non-operation position.

The lock lever (6) is biased in the direction of arrow B'by a return spring (11).

Wherein the recording control lever (2), the Rotsukureba locking piece engages the locking pawl (6 _a) of (6) (2 _a) is formed, the recording operation lever (2) is locking the operating position It

Further, the recording control lever (2) abutting protrusion (2 _b) is formed, the first abutment protrusion which abuts the abutment protrusion (2 _b) of the reproduction control lever (3) ( _3a ) is formed, and the operation lever for recording (2) causes the reproduction operation lever (3) to move together from the non-operation position to the operation position.

Wherein the reproduction control lever (3) the second abutment protrusion (3 _b) is formed, the reproduction interlocking lever (4) is said second abutment protrusion (3 _b) and contact protrusion (4 _a) and positioning protrusion (4 _b) is formed in contact by the operation of the reproducing operation lever (3) connexion second abutment protrusion (3 _b) is in abutment protrusion (4 _a) The playback interlocking lever (4) interlocks from the non-operating position to the operating position.

The playback interlock lever (4), said Rotsukureba lock valve that engages the locking pawl (6 _b) of (6) (4 _c) are formed, regeneration interlock lever (4) is locking the operating position.

When positioning protrusion playback interlocking lever (4) (4 _b) is to return the operation of the reproducing operation lever (3) is released the return spring (8) in the non-operation position direction (direction of arrow A '), The second contact protrusion (3b) of the reproduction operation lever (8) is brought into contact with the reproduction operation lever (8) to position the reproduction operation lever (3) at an intermediate position between the operated position and the non-operated position.

The stop operating lever (5) is formed with _a release piece (5a) joined to the inclined surface ( _6c ) of the lock lever (6), and the lock lever (6) is operated by operating the stop operating lever (5). Moves in the direction of arrow B against the spring (11), and unlocks the recording operation lever and the playback interlocking lever.

(12) is an operating lever which constitutes a part of a tape reversing operating mechanism in which a long hole (14) is combined with a support shaft (13) on the chassis (1) so as to be rotatable. The spring (15) constantly urges the spring (12) in the direction of arrow A'and also rotates it in the clockwise direction.
An operation step portion (12 _a ) is formed which is in contact with the protrusion (6 _d ) of (6) and which opposes or separates from the control protrusion (3 _c ) of the reproduction operation lever (3) at the other end. ing.

The operating lever (12) is at an operating position in which the control projection (3 _c ) of the reproduction operating lever (3) faces the operating step portion (12 _a ), and is indicated by an arrow A.
By moving in the direction, it operates for tape reversal.

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

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, since the lock lever (6) is moving in the direction of the arrow B ′ by the spring (11), one end of the lock lever (6) is in contact with the protrusion (6 _d ) of the lock lever (6). The actuating lever (12) in contact is in the position rotated clockwise by the spring (15).

When the reproduction operation lever (3) is moved from the non-operation position in the direction of arrow A as shown in FIG. 2 in such a stopped state,
Second abutment protrusion (3 _b) causes interlocking contact with reproduction interlocking lever (4) in the direction of arrow A in abutment protrusion (4 _a) in its movement course. By the movement of the reproduction interlocking lever (4), the lock piece (4 _c ) slides on the lock claw (6 _b ) and the lock lever (6)
Is moved in the direction of arrow B against the spring (11),
By the protrusion (6 _d ) of the lock lever (6), the operating lever (12)
Will rotate counterclockwise against the spring (15).

By rotating the actuating lever (12) counterclockwise in this way, the actuating step portion (12 _a ) at the other end is moved to the reproducing operation lever (3).
Once located control protrusion of (3 _c) and the inoperative position of the non-opposing,
When the playback operation lever (3) is completely moved to the operating position, the locking piece (4 _c ) of the playback interlocking lever (4) is locked by the locking claw (6 _b ) of the locking lever (6) as shown in FIG. ), The lock lever (6) is returned by the spring (11) in the direction of the arrow B ', and at the same time, the reproduction interlocking lever (4) is locked in the operating position.

When the operating 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. interlock lever (4) are being lock in by connexion operative position Rotsukureba (6), second abutment protrusion relative to the positioning protrusion of the reproduction interlocking lever (4) (4 _b) (3 _b) Abut,
The playback control lever (3) will be positioned at an intermediate position between the operating position and the non-operating position, and at the same time, the actuating lever (12) will have one end of the lock lever (6) protruding piece (6 _d ). The operating lever (12) is set to the operating position by rotating so as to abut.

As described above, with the reproduction operation lever (3) in the intermediate position, the reproduction interlocking lever (4) is locked to the operating position, and the slide board 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 to activate the tape reversing operation mechanism during the reproduction to the reproduction state of the tape B surface, the reproduction operation lever (positioned at the intermediate position ( As shown in FIG. 5, 3) is moved from the intermediate position to the operating position in the direction of arrow A.

By this movement of the reproduction operation lever (3), the control projection (3 _c ) comes into contact with the operation step portion (12 _a ) of the operation lever (12) located at the operation position, and the operation lever (3 _c ) 12) is linked and arrow A
And the tape reversing operation mechanism is activated.

Therefore, the operation of the tape reversing operation mechanism causes the tape B
The playback operation lever (3) can be returned to the intermediate position shown in FIG. 4 when the playback operation lever (3) is released after the tape reversing operation mechanism can be switched to the surface playback state. Moving. Therefore, when the reproducing operation lever (3) is again operated 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-operating position from the stopped state, the lock piece (2 _a ) slides on the lock claw (6 _a ) of the lock lever (6), and the lock lever (6 _a ) )
Is moved in the direction of arrow B against the spring (11),
The recording operation lever (2) is set to the operation position by locking the lock piece (2 _a ) with respect to the lock claw (6 _a ).

The recording control lever (2) in contact with the reproducing operation lever abutting protrusion as shown in by connexion Figure 6 the movement (2 _b) the first abutment protrusion (3 _a) (3) Play but is moved to the operating position from the non-operation position with further regeneration control lever (3) by the movement connexion second abutment protrusion (3 _b) abuts on the abutting projection piece (4 _a) The interlocking lever (4) is moved together from the non-operating position to the operating position, and the playback interlocking lever (4) has the locking piece (4 _c ) locked to the locking claw (6 _b ) of the locking lever (6). Set to operating position.

In the recording state shown in FIG. 6, the reproducing operation lever (3) is locked in the operating position by the recording lever (2) by the locking lever (6), and thus the reproducing state described above is obtained. It cannot be returned from the operating position to the intermediate position as in the case of, and is held at the operating position.

Therefore, at this time, the operating lever (12) is in the position shown in the figure, and the operating lever (12) becomes inoperable when the reproduction operating lever (3) cannot be operated.
(12) is not actuated and can prevent the tape reversing actuation mechanism from becoming actuated.

Incidentally, moving stop operating lever (5) in the direction of arrow A in the reproducing state or recording state, releasing pieces (5 _a) is bonded to Rotsukureba inclined surface (6) (6 _c), the Rotsukureba
Move (6) in the direction of arrow B against the spring (11),
The lock of the playback interlocking lever (4) and the lock of the recording operation lever (2) can be released to return to the stopped state shown in FIG.

(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 tape to the operating lever of the tape reversing mechanism, the tape running direction is reversed, and in the recording state, the playback operating lever together with the recording operating lever is locked to the operating position. However, since the operation lever of the tape reversing operation mechanism cannot be operated due to the inoperability of the reproduction operation lever, it is not necessary to separately provide the tape reversing button, and the reproduction operation operation is not necessary. The button can be used also as the reversing button, and it is possible to reliably prevent the reversing operation in the tape running direction during recording, and the movement of the reciprocating tape recorder can be prevented. It is extremely useful as a work switching device.

[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 in the middle of a reproduction state, and FIG. 4 is a plan view in a 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 recording state. (2) …… Recording control lever, (3) …… Playback control lever,
(4) …… Playback interlocking lever, (6) …… Lock lever, (12)…
… Actuating lever, (3 _a ) …… First contact projection, (3 _b ) …… Second contact projection, (4 _b ) …… Positioning projection.

Claims (1)

[Claims] 1. A recording operation lever; (b) a reproduction operation lever which moves together from the non-operation position to the operation position in association with the operation of the recording operation lever; and (c) the reproduction operation. The playback interlocking lever that moves from the non-operating position to the operating position in relation to the movement of the audio operating lever to the operating position, and (d) the operation of the lock part and the playback interlocking lever that lock the operating position of the recording operating lever. A lock lever having a lock portion for locking the position; and (e) positioning the reproduction operation lever at an intermediate position between the operation position and the non-operation position when the reproduction interlocking lever is locked by the lock lever to the operation position. A positioning member, and (f) is set to an operation preparation position in response to the positioning of the reproduction operation lever to the intermediate position by the positioning member,
And a tape reversing operation mechanism that is operated to an operating position by moving the reproduction operation lever from the intermediate position to the operation position. (G) During reproduction, the tape reversing operation is performed by operating the reproduction operation lever from the middle position. A reciprocating tape recorder characterized by activating the mechanism and locking the tape reversing operation mechanism by locking the playback operation lever together with the recording operation lever to the operating position during recording. Action switching device.