JPS624921Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a magnetic recording/playback device configured to control the operating mode by using the driving force of a motor. The present invention relates to a magnetic recording and reproducing device characterized by a light weight.

Embodiments of the present invention will be described below with reference to the drawings.

The figure shows a vertical magnetic recording and reproducing device, and as shown in the side view of FIG. etc. are arranged in a known configuration. FIG. 1 is a front view showing the rear of the chassis 1, and 5 is a partially toothed gear that is meshed with a drive gear 6 that is constantly driven by a motor (not shown), and is provided with a clockwise rotational force by an energizing means (not shown). However, normally, the locking protrusions 7 and 8 formed on the toothless gear 5 are engaged with the locking lever 9 to prevent rotation, so that the toothless portion 10 faces the drive gear 6. and is cut off from the drive gear 6.
The locking lever 9 has elongated holes 11, 1 as shown in FIG.
1 houses the chassis shafts 12, 12, is biased rightward by a spring 13, inserts the protruding shafts 14, 15 into tapered openings 18, 19 formed in the playback lever 16 and the recording lever 17, and then the playback lever 16 and a recording lever 17, and is configured to slide to the left when the reproduction lever 16 or the recording lever 17 is operated. Reference numeral 20 denotes a starting lever that is slid by a cam 21 formed integrally with the partially toothed gear 5. A spring 23 is installed between the bent pieces 22 of the head board 4 bent toward the rear of the chassis 1. and an opening 24 at one end.
is formed and is provided so as to be slidable in the vertical direction. 25 connects the chassis shafts 26, 26 to the elongated holes 27, 2.
7, is biased downward by a spring 28, and is mounted so as to be able to slide vertically. A plate spring 29 fixed to one end switches the recording/playback switch 30 to record from the playback side. Furthermore, a recording selection lever 32 is rotatably mounted on the bent piece 31 at the other end. The recording selection lever 32 has one end formed in a hook shape and facing a position where it engages with the opening 24 of the activation lever 20, and the other end is configured to be engaged with the upright piece 33 of the recording lever 17, and further includes a spring. 34 in the clockwise direction (see FIG. 2).

Note that the playback lever 16 and the recording lever 17 are configured to be locked at the pressing operation position by a locking mechanism (not shown).

Next, the operation of the present invention having such a configuration will be explained.

First, when the regeneration lever 16 is pressed, the tapered opening 18 formed in the regeneration lever 16 comes into contact with the protruding shaft 14 of the locking plate 9, and the locking plate 9 is slid to the left against the bias of the spring 13. By moving the partially toothed gear 5, the engagement with the protrusion 7 is released, and the partially toothed gear 5 is unlocked and rotated slightly clockwise by a biasing means (not shown) to mesh with the drive gear 6. be done. The partially toothed gear 5 meshed with the drive gear 6 is further rotated clockwise, whereby the integrally molded cam 21 rotates, and the activation lever 20 is slid upward and connected by a spring 23. The head board 4 is moved to the performance position. When the toothless gear 5 is rotated approximately once, the toothless portion 10 faces the drive gear 6 and is cut off from the drive gear 6, and the other protrusion 8 of the toothless gear 5 is engaged with the locking lever 9. As a result, the partially toothed gear 5 is prevented from returning to its initial position.
The head board 4 is held at the playing position. When the regeneration lever 16 is unlocked by operating a stop lever (not shown), the locking lever 9 slides back to the right and the partially toothed gear 5 is disengaged from the other protrusion 8. The partially toothed gear 5 is rotated clockwise and returned to its initial position, one of the protrusions 7 and the locking lever 9 are engaged, and the starting lever 20 is slid downward to move the head board 4 to the playing position. The motor returns to the stop position and becomes stopped.

Next, the recording operation will be explained.

At this time, when the recording lever 17 is pressed, the upright piece 33 comes into contact with the other end of the recording selection lever 32,
The recording selection lever 32 is rotated counterclockwise against the bias of the spring 34, and the hook portion is engaged with the opening 24 of the activation lever 20. At the same time, the tapered opening 19 of the recording lever 17 comes into contact with the protruding shaft 15 of the locking lever 9, and by sliding the locking lever 9 to the left, the partially toothed gear 5 is rotationally driven in the same manner as described above, and the activation is started. By sliding the lever 20 upward, the head board 4 is moved to the performance position, and the recording/playback switching lever 25 is activated by the spring 28 via the recording selection lever 32 engaged with the opening 24. The plate spring 29 fixed to one end contacts the recording/playback switching switch 30 and switches from the playback side to the recording side. The recording state is thus set.

The recording state is released by unlocking the recording lever 17 by operating a stop lever (not shown) in the same manner as described above. At this time, the recording lever 17
When the recording lever 17 is restored, the engagement between the upright piece 33 of the recording lever 17 and the recording selection lever 32 is released, and the recording selection lever 32 is rotated clockwise under the force of the spring 34 to return to the starting lever. 20 openings 2
4, the recording/playback switching lever 25 is slid back downward under the force of the spring 28, and the recording/playback switch 30 is switched from the recording side to the playback side. Similarly to the above, when the activation lever 20 is returned downward, the head board 4 is returned from the performance position to the stop position, and the recording state is canceled.

As mentioned above, the magnetic recording/playback device of the present invention is configured so that the head board is moved to the performance position using the driving force of the motor, and the recording selection lever is controlled by operating the recording lever, and the recording/playback selector switch is operated. Switch the recording/playback switch lever to the recording side.
By connecting the head board to a means for moving it to the performance position, the recording/playback switch can be switched using the driving force of the motor, and the recording lever only needs to control the recording selection lever. Therefore, it can be operated with light force, and by providing a recording selection lever,
Playback and recording can be controlled by the same drive mechanism, which simplifies the configuration and has extremely great practical effects.

[Brief explanation of the drawing]

Figure 1 is a front view showing the configuration of the magnetic recording and reproducing device of the present invention, Figure 2 is a side view of the same, and Figure 3 is the first
FIG. 3 is a plan view showing the main parts of the figure. 4... Head board, 5... Gear with missing teeth, 6... Drive gear, 9... Lock lever (trigger lever),
16...Playback lever, 17...Record lever, 2
0... Start lever, 25... Recording/playback switching lever, 30... Recording/playback switching switch, 32...
Recording selection lever.

Claims (1)

[Claim for Utility Model Registration] By operating the regeneration lever, the trigger lever is moved to the unlocked position to engage the gear with missing teeth with the drive gear, and the rotation of the gear with missing teeth drives the activation lever. A magnetic recording/playback device configured to move the head board from a stop position to a performance position by means of a recording lever that moves the trigger lever to a non-latching position, and a recording/playback switch that switches a recording/playback switch. a recording selection lever, which is rotatably provided on the recording/playback switching lever and whose one end rotates from a non-engaged position to an engaged position with respect to the engaging portion of the starting lever by operating the recording lever; When the recording lever is operated, the recording selection lever is rotated and one end thereof is engaged with the activation lever, and the activation lever is driven along with the recording selection lever by the rotation of the partially toothed gear. A magnetic recording/playback device characterized in that it is configured to operate a recording/playback switching lever.