JPS5853712Y2 - Tape recorder operating device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an operating mechanism for a tape recorder.

Modern tape recorders have a built-in quick review mechanism.

This tight review mechanism allows you to listen to the recorded content immediately with a simple operation.The operation is to operate the recording lever, and after completing the specified recording operation, release the play lever. Immediately operate the rewind lever and proceed to rewind operation.

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.

Furthermore, compact tape recorders using ultra-small tape cassettes have also been developed.

The present invention allows an operation mechanism equipped with a quick review mechanism to be incorporated into a small tape recorder such as the one described above. can be locked in its operation position, fast forward position or rewind position, and during the above-mentioned quick review operation, it will be locked even if the rewind/fast forward lever is moved to the rewind position. It is an object of the present invention to provide a device which returns to the original neutral position simply by releasing the pressing force, and allows quick regeneration operation.

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

FIG. 1 is an old view showing the arrangement of the operating levers of the Cheap Recorder, and numeral 1 in the figure is the recording lever.

Although not particularly shown, the recording lever 1 is used to move the recording mechanism such as the erasing head to the recording position and to change the recording/playback switch, and as shown in Figure 2, one end is bent and locked. A piece 1a is formed, and slide grooves 1b and 1c are formed at the other end.

Although not shown in FIG. 1, there is a chassis plate on the bottom surface of the recording lever 1, and the slide holes 1b and 1c of the recording lever 1 are fitted into the pins 2 and 3 set up on the chassis plate, and the recording lever 1 slides. Possibly retained on the chassis plate.

Although not shown in FIG. 1, it is biased by a spring so as to protrude in the direction of arrow A.

The recording lever 1 also has a lock claw 1 having a protrusion 1e.
d is pivotally mounted.

As shown in FIG. 1, the locking pawl 1d is always rotated counterclockwise by the spring 4 which is engaged with the pin 2 and the protruding piece 1e. In the state shown in the figure, the protruding piece 1e is pressed clockwise by the lever 5 against the rotational force of the spring 4.

Reference numeral 6 denotes a play lever for moving a reproducing mechanism such as a magnetic head and a pinch roller to a reproducing position.

As shown in FIG. 3, the play lever 6 has a plate-like body with one side bent to form an actuating piece 6a, and an engaging piece 6b adjacent to the actuating piece 6a.

At the center, a lock pin 6c projects downward and a projection 6d projects upward.

6e is a lock groove formed in a single shape, 6f and 6g are slide holes, and 6h is a step for locking.

The slide holes 6f and 6g of the play lever 6 are fitted with pins γ and 8 provided upright on the chassis, and are slidably held on the chassis plate.

In the state shown in FIG. 1, the engaging piece 6b is located inside the locking piece 1a, and its tip is in contact with the inside of the locking piece 1a.

A movable lock pin 9 is fitted into the lock groove 6e and the button is pressed, and a spring (not shown)
Biased to protrude in the direction.

10 is a stop lever disposed between the play lever 6 and the chassis plate.

As shown in FIG. 4, the stop lever 10 has one end bent to form an actuation piece 10a, and a release arm 1 on the other side.
0b and a slit 10c are formed.

FIG. 5 is a back view showing the operating section of the cheap recorder disposed on the back surface of the chassis plate, and shows the back side of FIG. 1.

3. In FIG. 5, some of the components already explained are omitted.

In Fig. 5, reference numeral 3 indicates a rewind/fast forward lever, and the rewind/fast forward lever is used for rewinding and fast forwarding operations, unlocking the recording lever in the recording position, and performing the above-mentioned quick review. It is supported so as to be slidable laterally by pins 12 and 13 erected on the chassis plate.

Inside the rewind/fast forward lever 11 is an operating piece 11a.
A positioning portion 11b having three cam grooves is formed at one end, and a recess 11c is formed at the other end.

11d and 11e are slide holes into which the pins 12 and 13 are fitted.

Reference numeral 14 denotes a pressure spring that presses the rewind/fast forward lever 11 to the left in FIG.
The tip of 5a fits into the recess 11c.

Reference numeral 16 designates a lock lever which is pivotally connected to the chassis plate by a pin 17, and is constantly rotated in the clockwise direction by a spring 1B as shown in FIG. 11b, the rewind/fast-forward lever 11 is positioned at one of the rewind position, the neutral position, and the fast-forward position.

19 is a lever. Next, the operation of the present invention will be explained.

FIG. 5 shows a state in which the rewind/fast forward lever 11 is in the neutral position.

When the actuating piece 11a of the lever 11 is pressed to the right from this state, the lever 11 moves to the right and
The lock pin 16a passes over the cam crest of the positioning portion 11b and fits into the adjacent cam groove, and the rewind/fast forward lever 11 is locked as shown in FIG.

In the state shown in FIG. 6, the actuating piece 15a of the leaf switch 15 fitted in the recess 11e is pressed against the left side wall of the recess 11c and turned on, and a well-known mechanism (not shown) operates to perform fast forwarding. will be carried out.

In the state shown in Fig. 6, the pressing of the actuating piece 11a is stopped and the Morotsuta pin 16a is fitted into the cam groove, so the rewind/fast-forward lever 11 is locked and held in the position shown in Fig. 6, and continues. A fast forward operation is performed.

When the operating piece 11a is pushed leftward from the state shown in FIG. 6 and the rewind/fast-forward lever 11 is moved leftward, the lock pin 16a passes over the cam crest of the positioning portion 11b and fits into the central cam groove. Then, the state shown in Fig. 5 is returned to, and the drying operation is stopped.

When the operating piece 11a of the rewind/fast-forward lever 11 is pressed to the left from the state shown in FIG.
The rewind/fast forward lever 11 is locked by passing over the cam crest of Ilb and fitting into the adjacent cam groove as shown in FIG.

In the state shown in FIG. 7, the actuating piece 15a of the leaf switch 15 fitted in the recess 11c is pressed against the right side wall of the recess 11c to turn on the switch, and a known mechanism (not shown) operates to perform the rewinding operation. will be carried out.

In the state shown in FIG. 7, even if the pressing of the actuating piece 11a is stopped, the lock pin 16a is fitted into the cam groove, so the rewind/fast forward lever 11 is locked and held in the position shown in FIG. The rewinding operation continues.

When the operating piece 11a is pushed to the right from the state shown in FIG. 7 and the rewind/fast-forward lever 11 is moved to the right, the lock pier 16a passes over the cam crest of the positioning portion 11b and fits into the central cam groove. The state returns to the state shown in FIG. 5, and the rewinding operation is stopped.

Furthermore, when the stop lever 10 is operated while the rewind/fast-forward lever 11 is operated in either direction, the release pin 10d protruding from the back surface of the lever 10 moves the lock lever 16 as shown in FIG. As shown, the O-tube pin 16a of the lock lever 16 is disengaged from the positioning portion 11b of the rewind/fast-forward lever 11.

Therefore, the rewind/fast forward lever 11 returns to the neutral position and the fast forward or rewind operation is stopped.

Next, when the actuating piece 6a of the play lever 6 is pressed in the direction of arrow B from the state shown in FIG. The play lever 6 is moved to the left by the spring that is not pressed and fits into the stepped portion of the lock groove 6e, and the play lever 6 is held in the pushed state.

At the same time, a well-known mechanism operates to perform a regeneration operation.

When the play lever 6 is pushed in, the button and protrusion 6d presses a rotating arm bearing a pinch roller (not shown) on a shaft, and moves the pinch roller in the axial direction of the capstan.

To stop the reproducing operation, press the stop lever 10 in the direction of arrow B.

When the stop lever 10 is pushed in, the release arm 10b of the stop lever 10 presses the lock pin 9, so the lock pin 9 is disengaged from the stepped portion of the lock groove 6e, and the play lever 6 is unlocked. .

Therefore, a spring (not shown) returns the play lever 6 to the state shown in FIG. 1, and the playback operation is stopped.

When the play lever 6 is pressed and in the locked state, the lock pin 6c protruding from the back side
As shown in the figure, in order to press the lock lever 16, the lock lever 16 rotates, rewinds with its lock pin 16a, and disengages from the positioning portion 11b of the fast-forward lever 11.

Therefore, even if the play lever 6 is pressed by mistake when the rewind/fast forward lever 11 is operated and is in the state shown in FIG. It is forcibly returned to the neutral position by the spring force of the actuating piece 15a, and erroneous operation is prevented.

Next, in order to perform a recording operation, when the recording lever 1 is pressed in the direction of arrow B from the state shown in FIG.
, the play lever 6 is also pulled in the direction of arrow B and locked as described above.

When the play lever 6 is locked, as described above, the rotating arm on which the projection 6d supports the pinch roller is rotated, and the pinch roller is moved in the axial direction of the capstan.

When the rotating arm rotates, the lever 5 rotates counterclockwise as shown in FIG. The play lever 6 is rotated and the protruding piece 1e is locked.
It is locked to the stepped portion 6h.

Then, when the pressing of the recording lever 1 is stopped, the recording lever 1 is also locked by the engagement between the protrusion 1e and the stepped portion 6h, and the recording operation is performed by a well-known mechanism.

During recording operation, a pin (not shown) provided on the recording lever 1 locks the rewind/fast-forward lever 11 and prohibits interlocking in the fast-forward direction (rewind direction is possible). .

To stop the recording operation, press the stop lever 10, release the lock of the play bar 6 as explained above, and return the play lever 6 and the recording lever 1 to the state shown in Fig. 1. good.

Finally, the quick review operation will be explained.

As described above, when the recording operation is being performed with the recording lever 1 and the play lever 6 being pressed together, the rotor pin 6c of the play lever 6 is pressed against the lock lever 16.
is rotated as shown in FIG. 9, and the rewind/fast forward lever 11 has returned to the neutral position.

When the rewind/fast forward lever 11 is pressed in the rewind direction from this state, the lever 19 is rotated clockwise in FIG. 9.

The lever 19 is shown in FIG. 1, and in conjunction with the lever 5, the lever 19 rotates the lever 5 clockwise in FIG.

Therefore, the recording lever 1 that was locked to the play lever 6 is unlocked, only the recording lever returns to its original position, and the recording operation is stopped.

As the lever 19 rotates, the rewind idler (not particularly shown) comes into contact with the reel stand, and the pinch roller is separated from the capstan shaft and the rewind/fast-forward lever 11 is moved in the rewind direction. The switch 15 is operated to rotate the motor at high speed and immediately perform the rewinding operation.

When the predetermined amount of tape has been rewound and the pressing of the rewind/fast-forward lever 11 is stopped, the lever 11 is returned to the state shown in FIG. 8 by the spring force of the leaf switch 15. D. The rewind operation is aborted.

In this state, the play lever 6 is still locked, so the tape recorder immediately enters the play state and the recorded content is played back.

As explained in detail above, according to the present invention, the recording lever is provided with a locking pawl for engaging with the play lever in the playback position to lock the recording lever in the recording position, and the recording lever is provided with a locking pawl for locking the recording lever in the recording position, and also for rewinding and fast forwarding operations. The rewind/fast-forward lever for unlocking the recording lever in the recording position is provided with a positioning part consisting of three cam grooves, and the positioning part is used to move the rewind/fast-forward lever to the rewind position/neutral position. , engages a lock lever for locking the fast forward position at one position, and the lock lever engages the play lever when the play lever is locked at the playback position, and the rewind - Since it is designed so that it does not engage with the positioning part provided on the fast-forward lever, during normal rewinding or fast-forwarding operations, the rewinding/fast-forwarding lever is securely locked to the lock lever, and even if the pushing force is released, it will not engage. Rewind position or? When the play lever is in the play position and the recording lever is in the recording position, pressing the rewind/fast forward lever will only move the recording lever. Once the lock is released and the pressing force is released, the rewind/fast forward lever can quickly return to its original neutral position, allowing the recorded content to be played back quickly and with smooth operation.

It is effective in that it can be carried out reliably.

[Brief explanation of drawings]

Fig. 1 is a top view showing the arrangement of each operation lever of the tape recorder, Fig. 2 is a perspective view of the recording lever, Fig. 3 is a perspective view of the play lever, and Fig. 4 is a perspective view of the stop lever. 5 is a back view showing the operating section of the cheap recorder, and FIGS. 6 to 9 are explanatory diagrams of the operation of the tape recorder. In the figure, 1 is a recording lever, 1a is a locking piece, 1d is a locking pawl, 1e is a projecting piece, 4 is a spring, 5 is a lever, 6 is a play lever, 6a is an operating piece, and 6b is an engaging piece. 6c is a lock pin, 6d is a protrusion, and 6e is a lock groove. 6h is the stepped part, 9 is the lock bin, 10 is the stop lever
10a is an actuation piece, 10b is a release arm, 10e is a slit, 10ci is a release pin, 11 is a rewind/fast-forward lever, 11a is an actuation piece, 11b is a positioning part, 11c is a recess, 14 is a pressure spring, 15 is a leaf switch , 15a is an operating piece, 16 is a lock lever, 16a is a lock pin, and 18 is a spring.

Claims (1)

[Scope of utility model registration request] A play lever for moving a playback mechanism such as a magnetic head or a pinch roller to a playback position, a locking mechanism for locking the play lever in a playback position, and a lock mechanism for moving a recording mechanism such as an erase head to a recording position. recording lever and
a lock pawl provided on the recording lever for engaging with the play lever to lock the recording lever in the recording position; and a rewind for performing rewind and fast forward operations and unlocking the recording lever in the recording position. , a fast forward lever, the rewind lever, a positioning part consisting of three cam grooves provided on the fast forward lever, and a positioning part that engages with the positioning part to rewind and move the fast forward lever to one of the rewind position, neutral position, and fast forward position. a lock lever for locking in any position; and the rewinding;
spring means for returning the fast-forward lever to the neutral position; and the lock lever is provided on the rewind and fast-forward levers and engages with the play lever when the play lever is locked in the playback position. An operating device for a tape recorder, characterized in that the rewind and fast forward levers are in an unlocked state without engaging with a positioning portion.