JPS62257603A - Index table to index and reproduce plural record disks - Google Patents

Abstract

PURPOSE:To selectively reproduce plural record disks by driving an index table supporting the plural record disks, indexing a desired record disk and using it for the reproduction. CONSTITUTION:A desired record disk 4 on an index table T is fixed to a regulation section 31 comprising an index shaft of a casing 1. Then the index table T is driven and the desired record disk 4 among the record disks 4 supported on the table T is arranged on the lower side of a transparent cover 1b. In depressing a start device 14, the other end of a bar 18 is pushed down and one end is elevated. Thus, a turntable 10 kept at the retrogressing position against the elastic force of a stylus pressing spring 8 is released from the restriction, an electric contact point is turned on, a motor 15 is operate and the turntable 10 is driven. When the turntable 10 is forwarded, the reproducing stylus 5 energized in the reproduction start point normally is brought into contact with the sound recording face 3 of the record disk 4 at its reproduction start point.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an index table for use in a simple sound player that can use a plurality of record discs, and in particular, a table having a plurality of index points at appropriate locations on the table body. and includes a plurality of records corresponding to the index points, and the table body further includes a regulating part for moving the table body in a regular direction, so that it can be played by a simple sound player. , it became possible to identify and play a desired record among multiple records.

[Conventional technology]

Conventionally, simple sound reproducing machines that can be used to exchange multiple records have been provided (for example, the Japanese Patent Publication No. 57-312
(See Publication No. 01, Japanese Patent Publication No. 57-589, etc.).

These simple sound playback devices are equipped with a tone arm having an upward playback needle on top of the turntable, and the playback needle is anastomosed with the recording surface of the record that is loaded or mounted on the tone arm, or The turntable carrying the tone arm is configured to move forward and backward so that it can be moved backward and detached from the tone arm.

[Problems to be solved by this invention] However, in such a simple sound player, each record is stored or handled separately, and the player is loaded or attached to the player one by one. This method is inconvenient to operate, and there are problems in that it does not satisfy the demand for mechanically indexing a plurality of records and immediately play them back, and it does not satisfy the taste buds of such operations.

[Means to solve the problem]

In order to solve this problem, the present invention forms a plurality of index points 22 at appropriate positions on the table body 17, for example as in the illustrated embodiment, and a plurality of record discs are arranged in correspondence with the index points 22. 4,
The table body 17 is further provided with an index table for indexing and reproducing a plurality of records, which comprises a regulating part 31 for moving the table body 17 in a regular direction.

[Function] According to the present invention, an index table is attached to the simple sound reproducing machine, and the index table is moved while being regulated by the regulating section, a desired record is indexed by the index point, and the simple sound reproducing machine is operated.

〔Example〕

As shown in FIG. 1, the table main body 17 of the index table, which is indicated by T as a whole, has a circular shape, and index points 22 are formed around its periphery. The index points 22 are formed by cutting out the peripheral edge of the table main body 17 by curving it toward the center, and are arranged at four locations on the peripheral edge at equal intervals. On the table body 17, there are four records 4 each having a recording surface 3 on the bottom surface (as shown in FIG. 3) and a display 2 indicating the recording content on the top surface (as shown in FIG. 1). It is held fixed. In addition,
In this case, the display 2 is represented by a pattern. In the center of the table body 17, a regulating part 31, which is an index shaft in this case, is constructed, and the table body 17 is rotatably connected to a simple sound reproducing machine, the whole of which is indicated by A, around this regulating part 31. Ru.

Here, in order to specifically understand the application of this invention, a simple sound reproducing device A in which this index table T is used will be explained in detail.

That is, the casing 1 of the simple sound reproducer is a box 1a.
It consists of a lid body 1b which is covered with the lid body 1b.

In this case, the lid 1b is made of transparent plastic and can be opened and closed using a hinge IC. box la
Inside, as shown in FIG. 2, a boss portion 30 for pivoting is provided to protrude upward, and on the lid body 1b, an index shaft, which is the regulating portion 31, is provided to protrude in correspondence with the boss 30. It is. A guide notch 32 is formed in the lid body 1b. With the lid 1b open, the index table T is guided and placed in the guide notch 32, and pivoted to the index shaft of the regulating portion 31 to be in the state shown in FIG.

At this time, the regulating section 31 consisting of the index shaft is inserted into the boss section 30 of FIG. 2.

In this case, the table body 17 holds the recording surfaces 3 (see FIG. 3) of four records 4 facing inside the case 1a. Further, as shown in FIG. 1, the back side of the record 4 is attached to the casing 1 so as to face the top surface of the casing 1, and a display 2 related to the recorded content is displayed there in the form of a pattern. This is indexed record 4
can be seen through the transparent lid 1b.

As is clear from FIGS. 1 and 2, a crank-shaped engaging body 23 is erected inside the box 1a so as to be horizontally rotatable. And this engaging body 23
is a spring 33 shown in FIG. 2, one end of which is always biased toward the circumferential surface of the index table T.

As shown in FIGS. 2 and 3, a bar 18 is pivotally installed in the box 1a of the casing 1 in a seesaw shape. 34 in FIG. 3 is its fulcrum.

The bar 18 has one end branched into two curved portions, and the other end branched into a T-shape. and,
The other end of the bar 18, which is branched into a T-shape, is always urged upward by a biasing means 35 such as a coil spring from below, so the one end, which is branched into two and curved, is always urged downward. has been done.

A turntable 10 is pivotally mounted in the center of the box 1a. As is particularly clear in FIG. 3, this turntable 1O is pivoted by a center pin 36 so as to be able to move in the axial direction to some extent, and is supported from below by a needle pressure spring 8.

It should be noted that the elasticity of the needle pressure spring 8 is weaker than that of the biasing means of the bar 18.

This turntable 10 is provided with a downward facing speaker diaphragm 1) inside thereof, and a container 37 formed at the top thereof is slightly protruded from the upper surface of the turntable 10. As is clear from Figures 2 and 3,
Flanges F are formed on the rotating circumferential surface of the turntable 10 at the front and rear in the axial direction, thereby forming a pulley groove 19.

On the top surface of the turntable 10, a rod-shaped sound conductor 12 is placed.
It is constructed so as to traverse substantially in the diametrical direction with one end floating, and its midway portion is joined to and supported by the upper end of the container cylinder 37.

Further, on the turntable 10, a tone arm 7 having an upwardly facing regenerator 5 at the upper part of the tip is pivotally mounted at the rear end, and the tip from which the regenerator 5 is protruded, The turntable 10 can be pivoted between the periphery and the center.

The tip of the tone arm 7 is supported in sliding contact with the sound conductor 12 below the reproduction meter 5.

A return spring 6 is wound around the pivot point of the tone arm 7, and the tip end where the playback meter 5 is provided is always directed toward the peripheral edge of the turntable 10, that is, toward the playback start point of the record 4. It is designed to be energized by A protruding canceling device 21 is formed on the opposite side of the distal end portion where the regenerator 5 is provided via the pivot portion.

The cancellation device 21 is configured such that when the distal end where the playback meter 5 is provided reaches the center of the turntable 10, that is, the end point of playback of the record 4, it protrudes outward in the radial direction from the periphery of the turntable 100. There is (4th
(see figure).

In FIGS. 2 and 3, reference numeral 15 is an electric motor, and a belt is passed through a pulley groove 19 to communicate with the turntable 10.

Further, one end of the bar 18 which is curved into two branches is installed in the pulley groove 19 of the turntable IO, and when that part moves in the axial backward direction of the turntable 10, it can be moved in the backward direction. The turntable 10 can be moved backward against the stylus pressure spring 8 by pushing the flange F of the turntable 10.

The other end of the crank-shaped engaging body 23 faces the lower side of one of the T-shaped other ends of the bar 18, and a male and female engaging portion 24 having an upward protrusion is provided thereon. It is a provision.

A corresponding portion on the bar 18 side is provided with a small hole 24a.

Thus, the male and female securing portions 24 of the 23 engaging bodies are
When it is engaged with the notch-shaped index point 22 of the index table T, it is located directly below the small hole 24a, so that it can be engaged with the male and female.

An electric contact 16 constituting an electric circuit to the electric motor 15 is disposed below the bar 18, and the electric contact 16 is connected to the bar 18 as shown in FIGS. 5 to 7. It is set to be in an ON state when the other end of the T-shaped end is lowered, and to be OFF when the other end is raised. Each figure shows the start mounting surface 1.
4, which is formed as a push rod that can abut on the other end of the T-shaped bar 18 and push it down from outside the casing 1.

A protrusion 41 having an upward step surface 40 is provided at another portion of the other end of the T-shape of the bar 18.
A terminal device 13 is constructed on the side of the projecting column 41 inside. This termination device 13 is a pivot support for the middle part of a horizontally curved rod so that it can pivot in the horizontal direction. A weak torsion spring 42 is installed at the pivot point of the rod, which biases the rod clockwise.

One end of the rod of this termination device 13 is connected to the turntable 10.
The other end of the rod is biased and pressed against the side surface of the protruding column 41 by the torsion spring 42.

Thus, the other end of the rod constitutes the retaining device 20 together with the stepped surface 40 of the protrusion 41. In other words, when the T-shaped other end of the bar 18 is lowered, the other end of the rod engages with the step surface 40, the engagement device 20 is in the engaged state, and the bar 18 is biased by its biasing means. 35, the lowered position of the other end and the raised position of one end can be maintained, respectively.

Further, in this embodiment, a manual termination push rod 44 is provided as an option of the termination device 13. This is shown in Figure 1.
As is clear from FIG. 2, FIG. 4, FIG. 5, and FIG. A protrusion 48 is provided. This inclined surface 47 is joined to the curved inner side of the rod of the termination device 13, so that the rod can be rotated counterclockwise. This is because the engagement device 2
0 is disengaged, one end of the bar 18 is lowered, and the turntable IO can be moved backward.

FIG. 7 shows a state in which the turntable 1O is in a retracted state, and this can occur either when the canceling device 21 is activated and this state is reached, or when the manual end push rod 44 is operated to reach this state. Also includes.

The apparatus of this embodiment is used in the following manner.

That is, the index table T supporting the desired record 4 is pivotally mounted to the regulating portion 31 formed by the index shaft of the casing 1 . Next, the index table T is rotated, and among the record discs 4 supported thereon,
A desired record 4 is placed under the transparent lid 1b and indexed. At this time, the engaging body 23 that was in elastic contact with the circumferential surface of the index table T falls into the index point 22 of the index table T, temporarily fixing the indexed position.

When the start device 14 is then pressed, the other end of the bar 18 is pushed down and the one end is raised. As a result, the turntable 1o, which has been held in the retracted position against the elasticity of the stylus pressure spring 8, is no longer restrained and moves forward.

At the same time, the bar 1 is located under the other end of the bar 18.
The electric contact 16, which was OFF when 8 was not pressed down by the start device 14, is turned ON, the electric motor 15 operates, and the turntable 10 rotates.

Also, the locking device 13 hangs on the step surface 40 and the bar 18
While maintaining the lowered position, the male and female retaining portion 24 is inserted into and engaged with the small hole 24a of the bar 18, and the engaging body 23
is fixed in the engaged state with the notch 22, and the indexed position of the index table T is completely fixed.

When the turntable 10 moves forward, the playback meter 5, which is always biased toward the playback start point by the return spring 6, anastomoses with the recording surface 3 of the record 4 at the playback start point, and as the turntable 10 rotates, the playback meter 5 creates a recording groove. It scans and reaches the playback end point. While the playback meter 5 is scanning the recording surface 3 of the record 4, the cross section 4o formed on the protrusion 41 of the bar 18 is biased by the biasing means 35 by the engaging device 20 as shown in FIG. is suppressed against. When the regenerator 5 reaches the regeneration end point, the cancel device 21 protrudes outward in the radial direction from the periphery of the turntable 10 and
As the rod rotates, it collides with one end of the rod of the termination device 13, causing the rod to pivot counterclockwise, and the cross section 40 of the protrusion 41 releases the engagement of the engaging device 2o.

When the engagement device 20 is released, the bar 18 loses its support, and the biasing means 35 pushes the turntable 10 in the backward direction again, thereby separating the playback unit 5 from the recording surface 3 of the record disc 4.

In this way, the playback of the -th recording is completed, but if you wish to stop it midway through the playback, press the manual end push rod 44 as shown in Figure 6.
When pressed, the same effect as when the canceling device 21 is activated is obtained.

In any case, when the playback meter 5 is away from the recording surface 3 of the record 4, the electrical contact 16 is closed as shown in FIG.
The state becomes F, and the electric motor 15 stops and the turntable 10 also stops. Further, as shown in FIGS. 6 and 7, the male and female engaging portions 24 come out of the small holes 24a of the bar 18, allowing the engaging body 23 to pivot freely. Thus, rotation of the index table T is allowed.

〔effect〕

According to this invention, a plurality of records are supported on the index table, and by rotating this index table, a desired record can be indexed and played back, so that a plurality of records can be selected. It is very convenient to play, and the user can enjoy the operation of indexing and playing the record, making it particularly interesting as an educational toy.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an index table of the present invention and a simple sound reproducing machine using the same, and Fig. 2 is a perspective view of the simple sound reproducing machine with the lid part of the casing removed and a part broken. Figure 3 is a sectional view taken along line 3-3 in Figure 1, and Figure 4 shows the relationship among the index table, turntable, canceling device, termination device, bar, engaging body, electrical contacts, etc. The partial plan views, FIGS. 5 and 6, show the bar and the male and female engaging portions in a regenerated state and a non-regenerated state, respectively. FIG. 7 is a side view showing the relationship among the termination device, engagement device, protrusion, section 1 manual termination push rod, etc.; FIG. be. In the figure, 3 is a recording surface, 4 is a record disc, T is an index table, 17 is a table body, 22 is an index point, and 31 is a regulating section.

Claims (2)

[Claims] (1) A plurality of index points are formed at appropriate locations on the table body, a plurality of records are contained in correspondence with the index points, and the table body is further provided with a device for moving the table body in a regular direction. An index table for indexing and playing multiple records, which constitutes the regulation section of the. (2) The table body is circular, the index point is a notch formed on the periphery of the table body, and the regulating part is a rotation center formed at the center of the table body, An index table for indexing and playing multiple records.