JPS5823643B2 - audiovisual card playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an audiovisual card player that uses an audiovisual card that has pictures, letters, etc. drawn on the front side and a sound groove on the back side.
To provide an excellent audiovisual card reproducing machine which has a simple configuration and prevents damage to a needle due to card removal due to erroneous operation.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An audiovisual card player according to the present invention will be described below with reference to drawings of an embodiment.

In the figure, 1 is a box-shaped device body, 2 is a slit for inserting an audio-visual card formed near the front of the device body 1, and 3 is a back surface that is inserted into the slit 2 and has pictures, letters, etc. drawn on the surface. 4 is a transparent window formed in the front of the device body 1 at a position facing the surface of the audiovisual card 30 inserted into the slit 2; 5 is a transparent window 4; A turntable 6 is rotatably mounted in the apparatus main body 1 facing the turntable 6, which is horizontally rotatable around an axis T formed in the turntable 5, and is fitted with the axis 7. The pickup is mounted vertically rotatable around the axis 9 of part 8, 10 is a through hole formed in the turntable 5 into which the tip of the pickup 6 is inserted, and 11 is attached to the rotation axis 5-a of the turntable 50. a slip ring electrically connected to the output end of the pickup 6, 12 a brush for output extraction that is in constant contact with the slip ring 11, 13 a motor, 14
15 is a belt connecting the motor 13 and the turntable 5; 15 is an interlocking member whose upper part is inserted into the slit 2 and whose lower part is in contact with the chassis 16 and is movable in the direction A; 17 is the interlocking member 15; A spring 18 is a wedge portion formed by cutting and raising the tip of the interlocking member 15, and a spring 19 has one end crimped to the chassis 16 and the other end attached to the wedge portion 18 with its own elasticity. A plate spring 21 is press-fitted into the center of the turntable 5, and the pilot pin 20 is pressed into the center of the turntable 5, and the plate spring 21 always urges the pilot pin 20 connected to the intermediate portion in the direction B according to the movement of the interlocking member 15. The inserted turntable shaft 22 is attached to the chassis 16 and has two contact pieces 23 and 24 facing each other and these contact pieces 23 and 24.
The motor 13 is formed by a holding part 25 that holds one end of the motor 13.
26 is a stopper attached to the tip of one contact piece 23 constituting the leaf switch 22, and 26-a is a leaf switch that controls power supply to the turntable 5.
2T is a reset member 27 attached to the tip of the other contact piece 24;
-a is a cam portion 27-a that contacts a pin 29 formed on a part of the tone arm 28 and returns the tone arm 28 to a state in which the pickup 6 does not protrude from the through hole 10 against the force of the spring 30; 32 is a cam portion formed so as to be in contact with the cut and raised portion 31-a of the play slide plate 31, and moves the reset member 27 and the stopper 726 up and down in the direction C by pressing the play slide plate 31; A spring 33 always urges the movable play slide plate 31 in the E direction, 33 is a stop slide plate fixed to the chassis 16 so as to be movable in the D direction, and always urged in the E direction by a spring 34; Above play slide board 3
a notch plate 37 which is configured to notch 1 and release the notch with a stop slide plate 33, is movable in the F direction, and is always biased in the C direction by a spring 36;
is the cam portion 5 formed on the collar surface 5-b of the turntable 5.
- a swinging member 37-a that engages with c at any time to move the notch plate 35 via the spring pin 38 and release the notch of the play slide plate 31; When inserting the card, the swinging member 37 is moved to position A where it is disengaged from the cam portion 5-c,
Further, the notch 39, which is configured to move to position B where it engages with the cam part 5-c when the card is removed, always keeps the notch 37-a of the swinging member 37 connected to the interlocking member 1.
This is a spring that urges the tip portion 15-a of 5 to come into pressure contact with the tip portion 15-a.

In the above embodiment, in the steady state, the leaf switch 2
The projecting piece 26-a of the stopper 26 attached to the tip of one contact piece 23 constituting the turntable 2 is connected to the flange surface s-b of the turntable 5.
The contact piece 23 is engaged with a notch 5-d formed in the contact piece 23.
is slightly curved downward.

The other contact piece 24 is in a normal state because the play button 31-b is not pressed, and therefore is not in contact with the one contact piece 23, and the leaf switch 22 itself is in an off state.

In this state, as shown in FIG. 2, the pin 29 formed on a part of the tone arm 28 is in contact with the side surface of the reset member 27 provided on the other contact piece 24, and the tone arm 28 is at the tip of the pickup 6. is locked at a position that does not protrude from the through hole 10 formed in the turntable 5.

On the other hand, when the audiovisual card 3 is not inserted into the slit, the connecting member 15 is moved to the left side in FIG. 1 by the spring 17, and the swinging member 37 is moved to the left side in FIG. As shown, it is at a position B where it can engage with a cam portion 5-c formed on the shaft portion of the turntable 5.

Now, if the audiovisual card 3 is inserted into the slit 2 in this state, the connecting member 15 will be pushed by the tip of the audiovisual card 3 and will move to the right side in FIG.

Therefore, the swinging member 37 is attached to the distal end 15- of the connecting member 15.
The cam portion 5-c formed on the shaft portion of the turntable 5 is rotated along the dotted line in FIG.
It becomes a state where it does not engage.

Therefore, in this state, press the play button 31-b,
When the play slide plate 31 is moved in the direction opposite to the direction of the arrow E in FIG. Therefore, the other contact piece 24 constituting the leaf switch 22 is made thicker (curved) in the downward direction.

Therefore, the other contact piece 24 contacts one contact piece 23,
When the leaf switch 22 is turned on to start supplying power to the motor 13, one of the contact pieces 23 and the other contact piece 24 will further curve downward significantly.

Therefore, the protruding piece 26-a of the stopper 26 provided at the tip of one contact piece 23 comes out from the notch 5-d formed in the collar surface 5-a of the turntable 5, and the turntable 5 It is rotated by the motor 13 in the direction of the arrow in FIG.

Then, as the other contact piece 24 is largely bent downward and the reset member 27 is moved significantly downward, the engagement between the reset member 27 and the pin 29 is simultaneously released, so that the tone arm 28 is moved by the force of the spring 30. The tip of the pickup 6 is rotated so as to protrude upward from the through hole 10 formed in the turntable 5.

Therefore, when the pickup 6 engages with the sound groove of the audiovisual card 3 inserted into the slit 2, the signal recorded in the sound groove is reproduced by the pickup 6.

In this state, the play slide plate 31 is in contact with the notch plate 3.
It is held as long as it is locked by 5.

Therefore, a so-called play state is maintained in this state.

Now, assume that the stop button 33-a is pressed while the device is in the play state.

When the stop button 33-a is pressed, the stop slide plate 33 is moved in the direction opposite to the direction of arrow E in FIG. 3, so the spring pin 38 provided on the notch plate 35 is moved to the left side in FIG. , the notch plate 35 is also the third
It will be moved to the left side of the diagram.

Therefore, the engagement between the play slide plate 31 and the notch plate 35 is released, and the play slide plate 31 is returned to its original state by the force of the spring 32. Similarly, it returns to its original state.

Then, the pin 29 provided on the tone arm 28 similarly comes into contact with the side surface of the reset member 27 via the cam portion 27-a formed on the reset member 27, and at this time, the tone arm 28 has the tip of the pickup 6 turned. The table 5 returns to a state where it does not protrude from the through hole 10 formed in the table 5, and the audiovisual card 3 returns to the performance starting position.

'And even if the audio-visual card 3 is accidentally pulled out from the slit 2 while the device is in the playing state, the device can be restored to its original state in the same way.

That is, if the audiovisual card 3 is removed from the device that is currently in the playing state, the connecting member 15 is moved to the left in FIG. Moving.

Therefore, the cam portion 5-c provided on the turntable 5
contacts the swinging member 37, and acts to further rotate the swinging member 37 in the direction of the half-hour hand.

Therefore, the spring pin 38 provided on the notch plate 35 moves to the left side in FIG. 3, and the notch plate 35 similarly moves to release the engagement between the play slide plate 31 and the notch plate 35.

As a result, the play slide plate 31 returns to its original state in the same way as when the stop button 33-a was pressed.
The leaf switch 22 returns to its original state, and the tone arm 28 returns to its original state.

The pilot pin 20 holds the audiovisual card 3 inserted into the slit 2 in the playing state.
The wedge portion 18 provided on the connecting member 15 and this wedge portion 18
When the audio-visual card 3 is inserted, it moves upward in relation to the leaf spring 19 that slides into contact with the audio-visual card 3, and its upper end engages with a recess provided in the audio-visual card 3.

That is, when the audiovisual card 3 is not inserted into the slit 2, the communication member 15 is located on the left side in FIG. 1, and the leaf spring 19 is pressed downward by the wedge portion 18.

Therefore, in this state, the pilot pin 20 has moved downward, making it easier to insert the audiovisual card 3 into the slit 2.

When the audiovisual card 3 is inserted into the slit 2, the connecting member 15 moves to the right in FIG. 1, so the leaf spring 19 moves upward by its own elastic force, and the pilot pin 20 similarly moves upward.

When the audio-visual card 3 is inserted to a predetermined position, the upper end of the pilot pin 20 comes into contact with the back surface of the audio-visual card 3, and when the audio-visual card 3 is further inserted, the pilot pin 20
The upper end of the audio-visual card 3 is inserted into a recess formed on the back surface of the audio-visual card 3, and acts to prevent the audio-visual card 3 from coming off.

In this way, according to the above embodiment, the audiovisual card 3 can be played by simply inserting the audiovisual card 3 into the slit 2 and pressing the play button 31-b. Even if the rocking member 37 is pulled out by the interlocking member 15, the rocking member 37 is moved to a position where it engages with the cam portion 5-c of the turntable 5.
7, the engagement between the play slide plate 31 and the notch plate 35 can be released and all the mechanisms can be returned to their original positions.

Therefore, according to the above embodiment, damage to the needle due to operation can be completely prevented, and it is extremely advantageous as an audiovisual card reproducing apparatus using the pickup 6 or the like.

As is clear from the above embodiments, the audio-visual card playback device of the present invention is extremely advantageous as a music performance device or educational device, as the needle is completely protected and the device as a whole can be downsized. .

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view of one embodiment of the audiovisual card playback device of the present invention, FIG. 2 is a perspective view of essential parts of the device, and FIG.
The figure is a plan view of the main parts of the device. 1... device body, 2... instep, slit, 3...
Song audio/visual card, 5...Turntable, 6.
・Song pickup, 15... Interlocking member, 37.
- Swinging member.

Claims (1)

[Claims] 1. Insert an audiovisual card with pictures, letters, etc. drawn on the front side and a sound groove on the back side into the slit formed in the main body of the device, and in this state, the signal recorded in the sound groove of the audiovisual card is inserted into the turntable. A connecting member that moves in conjunction with the insertion of an audiovisual card is disposed in the slit, and a wedge portion interlocking with the connecting member and a wedge portion between the device body and A positioning pin is provided that is moved to the center of the audiovisual card, and when the audiovisual card is inserted, the positioning pin is raised via the connecting member and the wedge portion to fit into the center of the audiovisual card. , a swinging member is provided that operates in response to the rotational force of the turntable when the audiovisual card is pulled out from the slit, and when the audiovisual card is pulled out during playback when the play slide plate is operated and locked, the connecting member and the wedge The positioning pin is lowered by interlocking of the parts to separate the positioning pin and the audio-visual card, and the swinging member is operated to release the lock of the play slide plate and return the play slide plate to its original state. An audio-visual card playback device characterized in that it is configured to return to.