JPS5953623B2 - Locking mechanism of operation button in tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking mechanism for an operation button in a tape recorder.

The purpose of this is that all buttons can be unlocked by operating the stop button, and only the rewind and fast forward buttons can be unlocked regardless of the stop button, and the playback button can also be unlocked. It is an object of the present invention to provide a locking mechanism for operation buttons in a tape recorder, which makes it impossible to lock the rewind and fast forward buttons at times.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a shaft that fits into the chassis, and a 10th pick plate 2, a slide plate 3, and a 20th pick plate 4 are inserted into this shaft 1.
The tenth pick plate 2 and the twentieth pick plate 4 are each given rotational force in the same direction by springs 5 and 6.

When the lock is unlocked, the stopper 2a of the tenth pick plate 2
The rotation angle of the 10th pick plate 2 is regulated by contacting the chassis, and the extension 4a of the 20th pick plate 4 contacts the extension 2b of the 10th pick plate 2 via the slide plate 3. The rotation angle is regulated by.

That is, the 20th pick plate 4 connects to the first plate via the slide plate 3.
It overlaps with 0tsuku board 2. A convex portion 4a is formed in the center of the extended portion 4a of the 20th pick plate 4 on the side facing the extended portion 2b of the 10th pick plate 2. 2c is an inclined surface for unlocking the tenth pick plate 2, on which the shaft 7 is attached.
The actuating piece Ba of the stop button 8 inserted into slides into contact with the stop button 8.

Further, reference numeral 2d denotes a locking stepped portion, on which the operating piece 9a of the regeneration button 9 inserted through the shaft T is locked. Further, 4b is also a locking step portion of the 20th pick plate 4, and the actuating piece 10a of the fast forward button 10 inserted through the shaft T.
) The operating piece Ila of the rewind button 11 is locked. The slide plate 3 is slidable along the axis 1, and this sliding operation is performed in two stages by a lever 12.

In the above, when the slide plate 3 is positioned in the state shown in FIG. and the locking step portion 4b are lined up on the same plane (FIG. 2A).

Therefore, in this case, the operating pieces 9a to 11 of each button 9 to 11
a can be independently locked to the locking step portions 2d and 4b, and when the stop button 8 is operated, the tenth lock plate 2 is pushed by the actuating piece 8a on the inclined surface 2c and rotates toward the ground. death,
As a result, the 20th pick plate 4 also passes through the slide plate 3 to the 10th pick plate 4.
Pushed by the pick plate 2, it rotates upward, and eventually the actuating pieces 9a to 1
1a is unlocked. Also,
If the playback button 9 and the fast forward button 10 or the rewind button 11 are locked at the same time, high-speed playback or high-speed reverse playback is performed, but if only the 20th lock plate 4 is rotated by means not shown, fast forwarding is possible. Only the button 10 or the rewind button 11 is unlocked, and a normal playback state is entered.

Therefore, in this case, the gap between the recorded portion of the magnetic tape and another adjacent recorded portion is detected by electrical or other means, and the detected signal is used to operate a plunger or the like to move the 20th pick plate 4. If you rotate it, so-called automatic tuning,
Or you will be able to skip songs. Furthermore, if the 20th pick plate 4 is rotated using a switch on the counter, so-called memory play can also be performed. Next, when the slide plate 3 is positioned in front of the convex portion 4a1 as shown in FIG. As a result, when the playback button 9 is locked, the 10th locking plate 2 will rotate slightly, and therefore the 20th locking plate 4 will also rotate by the same angle. The locking step portion 4b of the 20th pick plate 4 is located within the rotation locus range of the tips of the actuating pieces 10a, 11a.
The fast forward button 10 and the rewind button 11 can no longer be locked.

Therefore, in this case, it becomes possible to manually perform high-speed playback or high-speed reverse playback only for a desired period of time, a so-called "view/view" operation. Note that even if the slat plate 3 is positioned in front of the convex portion 4a1 in this way, if the playback button 9 is not locked, the 20th block plate 4 will not have rotated significantly, and this Fast forward button 1
0, independent locking of the rewind button 11 is possible. Said second
In the figure, a case has been described in which the slide plate 3 is located on the left side of the convex portion four a1, but even when it is placed on the right side, it functions in exactly the same way.

The reason why the right and left sides of the convex portion 4a1 are made the same in this way is as follows. That is, as mentioned above, as a control mode of the tape recorder, skipping songs or automatic tuning,
It is necessary to change the switch of the electric circuit for each mode for the key, review, and memory play, but this is because it is preferable to rely on one switching button and also have the slide plate operate in conjunction with each other. For example, if the slide board 3 is moved only to the convex part 4a and two places to the left of the convex part 4a, the switch that distinguishes between viewing, reviewing, skipping, automatic tuning, or memory play is linked to the slide board. In addition to this, it is necessary to change a switch to distinguish between skipping songs at the same position on the slide board or between automatic channel selection and memory play, and these must be operated separately. According to this embodiment, the button can be used to switch to 3
Since the slide plate can be moved when changing stages, only one button is required. As described above, according to the present invention, not only can all other buttons be unlocked by operating the stop button, but also the fast forward button or Only the reverse button can be unlocked, and furthermore, by moving the slide plate, it becomes impossible to lock the fast forward button and the rewind button when the playback button is locked, so that the intended purpose is fully achieved.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the lock mechanism, Figure 2 is a diagram when the slide plate is moved to the left, A is a front view, the opening is a bottom view,
C is a side view, FIG. 3 is a view when the slide plate is moved to the convex portion, and A is a front view and a side view from the bottom. 2...10th pick board, 3...Slide board, 4...20th pick board.

Claims (1)

[Claims] 1 a first lock plate having a stopper portion relative to the chassis and provided with rotational force in the direction of the stopper portion;
The second part is rotated in a direction that partially overlaps the lock plate.
The first lock plate includes a lock plate, and a slide plate movably positioned between the overlapping portion of the first and second lock plates;
A stop button and a playback button correspond to the lock plate, a fast forward button and a rewind button correspond to the second lock plate, and a convex portion is formed on the first or second lock plate at the overlapped portion. A locking mechanism for an operation button in a tape recorder, characterized in that: