JPS5847557Y2 - Tape recorder operating device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an operating device for a tape recorder.

In particular, tape recorders that use ultra-small cassettes (so-called microcassettes) are required to be able to be held and operated with one hand.

For this purpose, it may be possible to operate the reproduction operation lever or the rewind operation lever with the thumb of one hand, but in this case, each operation lever must be placed close to each other for ease of operation.

The present invention can be realized in a tape recorder in which the playback and rewind insertion levers are arranged close to each other, with a simple configuration that allows the tape to be rewinded from the playback state (i.e., to the review state). When the reproducing and rewinding operating levers are accidentally operated at the same time, priority can be given to locking the reproducing operating lever.

The device of the present invention will be described below along with embodiments shown in the drawings.

In the figure, reference numeral 1 denotes a tape recorder case, from the side of which a playback push button 2 and a rewind push button 3 are protruded in close proximity.

Reference numeral 4 denotes a playback operation lever connected to the playback push button 2, which is provided with a guide shaft 5 and a long hole 6 so as to be movable in the left and right directions in the figure. A rewinding operation lever connected to the guide shafts 8, 9, 10 with long holes
, 12, and 13 are provided so as to be movable in the same direction as the reproduction operation lever 4.

14 is a spring that returns the playback operating lever 4 to the right, and 15 is a spring that returns the rewinding operating lever 7 to the right.

Reference numeral 16 designates a lock lever which is movable by the combination of guide shafts 5, 9 and elongated holes 17, 18 in a direction orthogonal to the moving direction of each of the operating levers 4, 7, and has lock pieces 19 and 20 formed therein. There is.

When the reproducing and rewinding operating levers 4 and 7 are operated simultaneously and moving to the left, one of the locking levers 16 becomes engaged with the locking groove 21 of the reproducing operating lever 4. Also, the other lock piece 20 is set to be in a non-engaging state with the lock groove 22 of the rewind operation lever 7.

23 is a spring that biases the lock lever 16 upward in the figure.

Reference numeral 24 denotes a head support substrate which is movable in the vertical direction in the figure by combining guide shafts 25 and 26 with elongated holes 27 and 2B.
It has an inclined surface 30 that is in constant abutment with 9.

A recording/reproducing head is fixed to the head support substrate 24, but it is omitted in the drawing.

It is always biased upward in the figure by a spring (not shown).

Further, reference numeral 31 denotes a pinch roller support lever that moves together with the head support substrate 24, and is equipped with a pinch roller 32 and rotatably attached to a shaft 33, and is rotated counterclockwise in the figure by a spring 34. Forced.

Reference numeral 35 denotes a plate spring body whose one end is fixed to the pinch roller support lever 31 with a screw 36 and has a curved portion 35 at its free end. When the actuating position is reached, the curved portion 35' of the leaf spring body 35 faces the movement path of the control pin 37 provided on the rewind operating lever 7.

38 is a capstan, and 39 indicated by a dashed line is a microcassette.

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

(1) Stopped state At this time, the playback and rewind operation levers 4 and 7 are not operated, so the head support board 24 is separated from the cassette 39 as shown in FIG. 1, and the pinch roller 32 is moved from the capstan. It is in a state separated from 38.

(2) Regeneration state From the state shown in Fig. 1, the spring 14 of the regeneration operation lever 4 is
When the locking groove 21 is pressed to the left against this, the locking groove 21 is locked to the locking piece 19 of the locking lever 16, and the operating state is maintained.

Then, the projecting pin 29 of the operating lever 4 moves the head support board 24 downward in the figure via the inclined surface 30, and at the same time, the pinch roller support lever 31 also moves in the same direction, and the pinch roller 32 moves the capstan 38. It is in pressure contact with the

At this time, the tape winding mechanism becomes operational and enters the playback state.

Incidentally, when the pinch roller 32 moves to the operating position where it is in pressure contact with the capstan 38, as shown in FIG. It faces the movement path of the control pin 37 of the operating lever 7 .

(3) Rewinding state from playback state When the rewind operation lever 7 is pressed to the left after pressing the button to enter the playback state shown in FIG. 2, the control pin 37 provided on the operation lever 7 The pinch roller support lever 31 is brought into contact with the curved portion 35' of the
Rotate clockwise against the spring 34.

However, the pinch roller 32 is rotated from the capstan 38, and at the same time, the tape rewinding mechanism is brought into operation by operating the rewinding operation lever 7, and the tape is brought into the rewinding state.

Note that the rewind operation lever 7 is not locked to the lock lever 16 because the playback operation lever 4 is already locked to the lock lever 16, so the rewind operation lever 7 must be manually depressed. You can make the tape rewind only while you are there.

(i.e. review behavior).

When the operation is released, the rewinding operation lever 7 is returned to its original position by the force of the spring 15, and the control pin 37 and the leaf spring body 350 are no longer in contact with each other, so that the rewinding state shown in FIG. 2 is resumed.

(4) Erroneous operation state The reproduction operation lever 4 and the rewind operation lever I are mistakenly operated to the left at the same time, and the rewind operation lever 7 moves first due to the timing of the operation, and its control pin 3
7 enters the movement path of the plate member 35 of the pinch roller support lever 31, the replay operation lever 4 that has been moved after that is locked by the lock lever 16, but the rewind operation lever 7 is not locked. .

Since this state is an erroneous operation state, when the operation of the rewinding operation lever 1 is released, the control pin 3T collides with the leaf spring body 35 as shown in FIG. The control pin 37 returns from the solid line position to the dotted line position while bending as shown by the dotted line.

Therefore, even if the playback and rewind operation levers 4 and 7 are accidentally operated at the same time, the playback state can be automatically set.

As described above, the device of the present invention is provided with a leaf spring body on the pinch roller support lever, and in the playback state, the leaf spring body is opposed to the movement path of the control member that moves as the rewinding operating lever moves. When the rewind operation lever is operated in this replay state, the pinch roller support lever is released from the operating position via the leaf spring body attached to the control member, and the rewind operation lever is set to the rewind state. When the rewind operation lever and the rewind operation lever are operated at the same time, the leaf spring body collides with the control member, but the control member is released by self-elastic displacement, and the rewind operation lever is returned to the playback state. Since it is a tape recorder, it is possible to easily set the playback state, playback and rewinding state, and it is also possible to automatically set the playback state even if it is turned off in the event of an erroneous operation. This is a convenient operating device with a return operating lever located close to it.

[Brief explanation of the drawing]

The figures show the device of the present invention; Figure 1 shows the stopped state, Figure 2 shows the playing state, Figure 3 shows the rewinding state from the playing state, and Figure 4 shows that the playback and rewind operation levers are operated at the same time. It is a figure showing an erroneous operation state. 4... Reproduction operation lever 7... Rewinding operation lever 16... Lock lever 24... Head-i holding board,
31... Pinch roller support lever, 32... Pinch roller-135... Leaf spring body, 35'... Curved portion, 38... Capstan, 39... Cassette.

Claims (1)

[Scope of utility model registration request] Playback and rewind operation levers provided close to each other and movable in the same direction; a lock lever that prioritizes locking of the playback operation lever when the respective operation levers are operated simultaneously; and the playback operation. A pinch roller support lever that moves from a non-operating position to an operating position when the lever is operated, a control member that moves as the rewind operation lever is operated, and the pinch roller support lever that moves to an operating position. When the rewinding operation lever is operated in the playback state in which the playback operation lever is operated, the control member moves through the plate spring body. When the pinch roller support lever is released from the operating position and the playback and rewind operation levers are operated simultaneously, the leaf spring body collides with the control member, but due to self-elastic displacement, the control member is released and the rewind operation is performed. An operating device for a tape recorder, characterized in that the lever is configured to return to its original position.