JPS6212580B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a card insertion type recording/playback device.

There are various types of recording and reproducing devices, such as a spiral magnetic recording and reproducing device using a magnetic sheet, a card-mounted recording and reproducing device using a recording and reproducing card, and a card-insertion type recording and reproducing device that also uses a recording and reproducing card. Proposed. Among these, recording and reproducing devices using recording and reproducing cards are relatively small and portable, and are easy to handle, so they are widely put into practical use. FIG. 1 shows an example of a card insertion type recording/playback device using this type of card. Visual information such as letters or pictures is displayed on one side of a recording/playback card 2 used in this device, and auditory information corresponding to the visual information is recorded on the other side. This auditory information is recorded as audio, for example, on an overwound audio track of a sonosheet disk 2a attached to the other side of the card 2. In addition, card 2
A rectangular recess 2b is bored in the lower part of the other surface as a card set engagement part.

By the way, in this recording/playback device, the recording/playback card 2 configured as described above is inserted from above between the base wall 1a of the device main body 1 and the transparent plate 6, and the card is pushed into a predetermined position. , the card is automatically drawn in a predetermined amount, and the audio track and the recording/playback section of the device are correctly opposed.
In addition, the card is held stationary in this opposing position.

The present invention is useful when the recording/playback card 2 is not inserted correctly, for example, when the card 2 is inserted in the wrong direction so that its visual information side faces the turntable 11 that constitutes one of the recording/playback sections of the main body of the device. It is an object of the present invention to provide a card-type recording/playback device that prevents the above-mentioned automatic card retraction and protects the card, playback cartridge, etc., and before explaining the present invention. The operation status of the card retraction mechanism will be described below.

In FIG. 1, when the recording/playback card 2 is inserted between the base wall 1a and the transparent plate 6 with the visual information side facing up, the lower end of the card 2 first touches the eject members 14 and 15 for ejecting the card. Bending piece 14
This is true for a and 15a. This state is shown in FIG. The eject members 14 and 15 are given a rising habit, and the card 2 resists this tendency.
, this lower end is connected to the driven lever 2 as shown in Fig. 5a.
When the card set member 27 is pushed in until it touches the pin 25a of the card 2, the locking protrusion 27a of the card set member 27 faces the recess 2b of the card 2.

The driven lever 25 and the card set member 27 are constructed as shown in FIG. 2, and when the card 2 is further forcibly pushed in from the position shown in FIG. The lever 25 rotates counterclockwise around the shaft 26 against the elasticity of the spring 36 when viewed from the direction of arrow a.

By the way, in FIG. 2, the card set member 27 is given the habit of moving forward in the direction of the arrow by the elasticity of the elastic spring 29, and the movement due to this habit is caused by the guide inclined side edge 27c of the member 27.
is prevented by coming into contact with the stationary pin 31a of the stationary plate 31, which is held stationary.
Under these circumstances, as described above, when the driven lever 25 rotates counterclockwise, the card setting member 27 will descend, and this downward movement causes the setting member 27 to release the spring. 29 advances in the direction of the arrow and reaches the position shown in FIG. 5b.

During this time, the locking protrusion 27a of the setting member 27
When the card 2 enters the recess 2b and the shoulder 27d of the setting member 27 is in the state shown in FIGS.
(see FIG. 2) are pressed against the planes of the auditory information side on both sides of the recess 2b of the card 2. Then, when the card 2 is pushed a little further from the position shown in FIG. 5b to the position shown in FIG. 5c, the card set member 2
The guide inclined side edge 27c of No. 7 moves away from the immovable pin 31a, and at the same time, the driven lever 25, which was in the initial position shown in FIG. 7, assumes the inclined position as shown in FIG. At this time, the pushing arm 25c of the same lever 25
presses _the actuator of micro switch MS ₁ to turn it on.

When the microswitch _MS1 is turned on, the solenoid 37 shown in FIG. 2 is energized, and in conjunction with this, the sliding rod 34 is lowered while being guided by the riveted shaft 31b. Then, the driven lever 25 rotates around the shaft 26 via the spring 35 from the position shown in FIG. 8 to the position shown in FIG. That is, the card set member 27 is lowered from the position shown in FIG. 5c to the position shown in FIG. 5d.

During this time, the card 2 is pulled in. To explain this, the setting member 27, the free end of the driven lever 25, and the card 2 in FIG. Then, the lower end of the card 2 comes into contact with the upper end 21b of the stopper 21 (see FIG. 1).
After this, plunger 37a of solenoid 37
is pulled further, the setting member 27 further descends, and the locking protrusion 27a engages with the recess 2b of the card 2.
It hits the bottom surface 2c of the. From this state, the plunger 37a of the solenoid 37 moves slightly further.
Therefore, the locking protrusion 2
7a is pressed against the lower surface 2c, and the clamping pressure between the locking protrusion 27a and the upper end 21b of the stopper 21 holds the card 2 in an immovable state at the recording/playback section position. That is, it is set and held in the state shown in FIG.

In this way, if the card 2 is forcibly inserted to the position shown in FIG. 5c, the card 2 will be automatically drawn to the position shown in FIG. There is. After this pull-in, the recording/playback operation is started.

Here, in FIG. 1, if the recording/playback card 2 is inserted incorrectly, for example, if the card is inserted with the auditory information side on the back side facing up, the following situation will occur. Causes problems. Now, if the card 2 is inserted in the normal state, the card setting member 27 will move forward from the position shown in FIG. 5a to the position shown in FIG. becomes. However,
If it is inserted by mistake as mentioned above, the 10th
As shown in the figure, when the setting member 27 moves forward, the protrusion 27a comes into contact with the visual information surface of the card 2, thereby preventing the member 27 from moving further forward.

Under such a situation, even if the card is successively inserted and the micro switch MS ₁ is turned on and the solenoid 37 is energized, not only will the card 2 not be pulled in, but when the setting member 27 is lowered, In this case, there is a risk that the locking protrusion 27a may rub the visual information side of the card 2 and damage the visual information side. Furthermore, even if the card 2 is brought downward by frictional force while the locking protrusion 27a is in pressure contact with the card 2, the audio track and recording/playback section of the card will not face each other, and therefore the record stylus cartridge 12 The needle (see FIG. 1) will come into contact with the visual information surface of the card 2, and there is a risk of damaging the visual information surface and the needle.

An object of the present invention is to eliminate the above-mentioned drawbacks, and to prevent the card from being automatically retracted when the card is inserted by mistake as described above, and to ensure that the card is properly inserted. The automatic retraction is performed so that the device can enter the play state only when the fixing plate 41 with the immovable pin 41a is fixed as shown in FIG. Configure as follows. The fixed plate 41 and immovable pin 41a achieve the same functions as the fixed plate 31 and immovable pin 31a shown in FIG.

In FIG. 11, one end of a downwardly directed pin 27e is fixed to the card set member 27, and the other end of the pin 27e is an arm of the detection lever 42 which is pivotally connected to the shaft 41b of the fixing plate 41. It fits into a U-shaped notch formed at the end. In addition, the code 43
1 shows a switching body having a movable contact piece 43a and a fixed contact piece 43b, and the switching operation is performed by the pressing action of the detection lever 42.

Here, assuming that the card 2 is inserted in the normal state as shown in Fig. 5a, if the card 2 is forcibly pushed from this state to the position shown in Fig. 5b,
The card set member 27 moves downward and strokes S.
The locking protrusion 27a enters the recess 2b of the card 2. When the card set member 27 moves forward by the stroke S, the detection lever 42 is rotated in the direction of the arrow around the shaft 41b via the pin 27e in FIG. The free end of the movable contact piece 43a is bent to close the contact of the switch body 43.

On the other hand, when the card 2 is pushed from the position shown in FIG. 5b to the position shown in FIG.
Press the MS ₁ actuator to turn on the switch MS ₁ . The feature of the present invention is that the micro switch MS ₁ and the above-mentioned switch body 43 are configured with an AND circuit, and only when both switches are turned on, the solenoid 37 is energized and the card is automatically drawn. There is a particular thing.

Now, if the card 2 is inserted incorrectly as shown in FIG. 10, the locking protrusion 27
When a hits the visual information surface of the card 2, the card setting member 27 cannot move forward any further. Therefore, the detection lever 42 in FIG.
rotates only slightly, but does not close the contact of the switch body 43. Alright, card 2
Even if the micro switch MS ₁ is turned on by pushing the button further, the solenoid 37 cannot be energized and the card will not be automatically retracted.

The above is an example using the detection lever 42,
As shown in FIG. 12, the switch body 44 is directly closed using the displacement movement of the card set member 27 from the solid line to the imaginary line position, that is, the displacement movement from FIG. 5a to FIG. 5b. You can do it like this. In addition, as shown in FIG. 13, the card set member 2
A hook-shaped portion 27e may be formed on the upper end side of the switch 7, and the switch body 45 may be closed by this hook-shaped portion 27e. In any case, card 2 is the first
When inserted in the state shown in Figure 0, the setting member 27 cannot move forward and the switch body 4
4, 45 etc. cannot be closed.

As described above, in the present invention, the card can only be drawn in when the card is properly inserted, that is, when the locking protrusion 27a of the card setting member 27 faces the card setting recess 2b of the card 2. . On the other hand, if the card is inserted by mistake, for example, as mentioned above, if the card is inserted with the auditory information side facing up, the card will not be drawn in and the play state will not be entered. . In addition, even if the card 2 shown in FIG. 1 is inserted upside down, the recess 2b cannot face the locking protrusion 27a, so the card is not automatically drawn in and the card is not in play mode. cannot enter. Furthermore, the same applies when another type of card that does not have the card setting recess 2b is used. As described above, in the present invention, it is possible to achieve the function of determining whether the card insertion method is correct or incorrect and the type of card.

As described above, according to the present invention, the card is automatically retracted only when the card is correctly inserted into the device body.
Sensitive elements such as cards and playback cartridges can be protected.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of an example of a card insertion type recording/playback device to which the present invention is applied, FIG. 2 is an exploded perspective view of a card retraction mechanism in the playback device, and FIG. 3 is a perspective view of a card inserted into the playback device. FIG. 4 is a side sectional view showing a state in which automatic card retraction has been completed in the playback device, and FIGS. Side view showing the process of being pulled up to the 6th
The figure is a plan view showing the state in which the shoulders of the card set member are in pressure contact with the flat surfaces on both sides of the concave portion of the card, FIG. 7 is a front view showing the initial state of the driven lever and the card set member, and FIG. 8 is a push-in of the card. A front view showing the state in which the driven lever rotates due to operation and the micro switch is turned on, Figure 9 is a front view showing the state in which the driven lever has finished rotating, and Figure 10 shows the card inserted by mistake. FIG. 11 is a perspective view showing a card insertion determining mechanism provided in the device of the present invention, and FIGS. 12 and 13 are another example of the above determining mechanism. They are side views shown respectively. 1...recording/playback device body, 2...recording/playback card,
2b...Card set engaging portion, 27...Card set member, 27a...Locking protrusion.

Claims (1)

[Claims] 1. Recording and playback in which visual information is displayed on one side, auditory information corresponding to the visual information is recorded on the other side, and an engaging part for card setting is formed on the other side. a card, and a recording/playback section, and when the recording/playback card is inserted into a position of the recording/playback section such that the auditory information section corresponds to the recording/playback section, the sound corresponding to the visual information is played back. a recording/playback device main body for recording the audio or the sound in an auditory information section; and a removable locking protrusion on the card setting engaging part, and the locking protrusion locks in conjunction with the card insertion operation. A card setting member moves forward in a direction in which the card is engaged with the engaging portion, and when the locking protrusion of this card setting member engages with the engaging portion and the card insertion operation is completed, the card setting member is inserted into the card. The card is inserted by mistake in such a way that the card set member moving drive means that moves the card in the direction and pulls the card into the recording/playback section position and the card set engaging part cannot face the locking protrusion of the card set member. and a state in which the card is properly inserted so that the engaging portion can face the locking protrusion, and only when the card is properly inserted, the card set member moving drive means A card insertion type recording and reproducing device, characterized in that it is equipped with a detection means for activating.