JPS5912776Y2 - Operation mechanism of tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating mechanism for a tape recorder, and particularly to an operating mechanism for a tape recorder that simplifies play operations after rewinding.

Modern tape recorders have built-in quick review mechanisms.

This quick review mechanism allows you to listen to the recorded content immediately with a simple operation.The operation is performed by operating the recording lever and after completing the specified recording operation, the recording lever is operated. Immediately operate the rewind lever to start rewinding without releasing the button.

When the rewind operation is completed and the rewind lever is released, the tape recorder automatically enters the play mode and the recorded content is immediately played back.

SUMMARY OF THE INVENTION An object of the present invention is to provide a novel structure that allows a quick review mechanism to be attached to a tape recorder to which a quick review mechanism is not attached without much modification to the operating mechanism.

Next, one embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is an exploded perspective view showing one embodiment of the present invention. In the figure, 1 is a frame formed by bending a metal plate, and a lever 6 to be described later is inserted into the front side plate 1a of the frame. One Surits Hb
~1 g is formed.

On the bottom wall 1h, there are pins 11 and 1j that slidably support a lock lever, which will be described later, and pins 11 and 1j, which also slidably support a lever that will be described later.
Ip and Iq are installed.

2 is a lock lever that is slidably supported by the frame 1, and has two slide grooves 2a, 2b and five protrusions 2C to 2g.
In addition, the spring hook has a protrusion 2h.

3 is a recording lever, which has a slide groove 3a in the center and protrusions 3b and 3C on both sides.

4 is a rewind lever, which has a slide groove 4a, protrusions 4b, and 4C.
has.

5 is a play lever, which has a slide groove 5a, protrusions 5b, and 5C.
has.

6 is a fast-forwarding lever, which has a slide groove 6a, protrusions 6b, and 6C.
7 is a stop lever having a slide groove 7a and a protrusion 7b.

It has 7C.

When the lateral lengths of the protrusions 3C, 4C, and 5C are compared, the protrusion 5C is the longest, the protrusion 4C is the second longest, and the protrusion 3C is the shortest.

Further, the projection 5C of the play lever 5 has inclined surfaces 5d and 5e on both sides, as shown in FIG.

Reference numeral 8 indicates a compression spring that presses each lever forward, and reference numeral 9 indicates a tension spring that is tensioned between the projection 2h and the frame body.

To assemble, first place the pins 1i erected on the bottom wall 1h of the frame 1.
1j and the slide grooves 2a and 2b of the lock lever 2, fit the split washer into the tip of the pin 11 and 1j to slidably support the lock lever 2 on the frame 1, and then For the spring hook 2, a tension spring 9 is stretched between the protrusion 2h and the frame 1 to bias the lock lever 2 to the right.

Next, insert the tip of the recording lever 3 into the slit 1b provided in the front plate 1a, fit the slide groove 3a onto the pin 1k, fit the split washer into the tip of the pin 1, and place the recording lever 3 into the frame. It is slidably supported on the body 1, and a compression spring 8 is inserted between a frame portion (not shown) and the recording lever 3 to bias the recording lever 3 forward.

Similarly, the rewind lever 4, play lever 5, fast forward lever 6, and stop lever 7 are slidably supported on the frame 1.

FIG. 3 is a front view showing the assembled operating mechanism.

Next, the operation of the operating mechanism having the above structure will be explained.

In the state shown in FIG. 3, all the levers are
This is a state where all functions of the tape recorder are stopped, as seen from point a.

From this state, when the play lever 5 and the recording lever 3 are pressed simultaneously in order to record on the tape recorder, the protrusion 5C of the play lever 5 presses the protrusion 2e of the lock lever 2, so the protrusion 2e is pressed against the inclined surface of the protrusion 5C. 5d and move the lock lever 2 to the left.

When the play lever 5 and the recording lever 3 are pushed all the way, the protrusion 2C of the lock lever 2 falls into the stepped part of the protrusion 3C of the recording lever 3, and the protrusion 2e slides on the slope 5e of the play lever 5, and the lock lever 2 moves to the right. Move to lock the two levers as shown in FIG.

In this state, a mechanism linked to these two levers operates to perform recording.

When the rewind lever 4 is pressed to rewind the tape after recording, the protrusion 2d of the lock lever 2 slides on the slope of the protrusion 4C of the rewind lever 4.
2 moves to the left.

Since the lateral length of the protrusion 3C of the recording lever 3 is shorter than the lateral length of the protrusion 4C of the rewind lever 4, the recording lever 3 is unlocked while the rewind lever 4 is being pressed. , the recording lever 3 is returned to the front position by the compression spring 8, and the recording operation is stopped.

On the other hand, when the lock lever 2 moves to the left, the protrusion 2e
also moves, so the inclined surface 5 of the protrusion 5C of the play lever 5
e, and the play lever 5 moves in the direction of slightly protruding.

When the rewinding lever 4 is fully pushed as shown in FIG. 5, the motor rotates at high speed in the opposite direction to perform the rewinding operation.

The rewinding operation continues as long as the rewinding lever 4 is pressed, and the protrusion 2e of the lock lever 2 is caught by frictional force on the inclined surface 5e provided on the protrusion 5C of the play lever 5, so that the rewinding operation continues in the right direction. It does not move and remains in the position shown in FIG.

When a predetermined amount of tape has been rewound, the rewind lever 4
When the pressing is stopped, the rewinding lever 4 is returned to its original position by the force of the compression spring 8, and the rotation of the motor in the opposite direction is stopped, thereby completing the rewinding operation.

However, as shown in FIG. 6, the protrusion 2e of the lock lever 2 still keeps the play lever 5 in the locked state, so the motor returns to its normal forward rotation.
Immediately play back what was recorded on the tape.

When the tape recorder is to be stopped after the playback is finished, the stop lever 7 is pressed as shown in FIG.

Due to this pressure, the slope of the protrusion 7C presses the protrusion 2g of the lock lever 2, so the lock lever 2 moves to the left and disengages the protrusion 5C of the play lever 5 from the protrusion 2e.
The play lever 5 returns to its original position and the tape recorder stops functioning.

Note that since the length of the protrusion 7C of the stop lever 7 in the lateral direction is large, the stop lever 7 is not locked even when it is pressed as shown in FIG.

Therefore, if the pressing of the stop lever 7 is stopped, the stop lever 7 returns to the state shown in FIG. 3 by the force of the compression spring 8.

In this embodiment, the recording lever 3 and the play lever 5 are
When the rewind lever 4 is pressed while the rewind lever 4 is pressed and locked, the lock lever 2 is securely pressed against the protrusion 5 of the play lever 5.
In order to engage C, it is preferable that the tension force of the compression spring 9 is greater than the tension force of the tension spring 9.

In the above embodiment, in order to hold the protrusion 2e of the lock lever 2 on the protrusion 5C of the play lever 5, the protrusion 5C is provided with an inclined surface 5e, and the friction between the inclined surface 5e and the protrusion 2e is increased. Although force is used, as shown in FIG. 8, the protrusion 5C of the play lever 5 may be provided with a stepped portion 5f, and the protrusion 2e of the lock lever 2 may be held by the stepped portion 5f.

As explained in detail above, according to the present invention, the length and shape of the locking protrusion of each operating lever can be changed without substantially changing the locking mechanism that locks each operating lever of a conventional tape recorder. A quick review mechanism can be constructed with just the above, and the functionality can be improved compared to conventional tape recorders without increasing the cost of the tape recorder.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an embodiment of the present invention, Fig. 2 is an enlarged partial plan view of the play lever, and Figs. 3 to 7 are operational explanations for explaining the operation of the present invention. 8 are enlarged partial plan views showing other embodiments of the play lever. In the figure, 1 is a frame, 1a is a front plate, 1b to 1g are slits, 1h is a bottom wall, 2 is a lock lever, 2a and 2b are slide grooves, 2C to 2g are protrusions, 3 is a recording lever, 3C is a protrusion, 4 is the rewind lever, 4C is the protrusion, 5 is the play lever,
5C is a protrusion, 5d and 5e are inclined surfaces, 6 is a fast-forward lever, 6C is a protrusion, 7 is a stop lever, 7C is a protrusion, 8 is a compression spring, and 9 is a tension spring.

Claims (1)

[Scope of utility model registration request] In the operation mechanism of a tape recorder in which a single lock lever is used in common to lock at least a play lever, a rewind lever, and a recording lever, the play lever, rewind lever, and recording lever each have different lengths.
A locking protrusion is provided that engages with the play lever, and when the play lever and the recording lever are locked, the rewind lever is operated to unlock the recording lever and maintain the locked state of the play lever while locking the protrusion of the play lever and the lock lever. An operating mechanism for a tape recorder, characterized in that a lock lever is locked in an unlocked position of a rewind lever by engagement of the rewind lever.