JPH0145122B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mechanism for rotating, stopping, and sequentially selectively reproducing a record in a simple sound player driven by a spring motor, and particularly relates to a mechanism for rotating, stopping, and sequentially selectively reproducing a record in a simple sound player driven by a spring motor, and in particular, is supported on a center shaft so as to be integrated in the winding direction and the axial direction, and an idling prevention rod is provided between the record disc, which is biased in the pick-up direction and can move on the center shaft, and the winding wheel. erected,
By performing the first winding operation while pressing the winding knob, the winding wheel engages the record latch piece, and the record is pressed by the operation lever that is the starting lever. When the record moves away from the pick-up, it is pushed back, and when the pressure on the operating rod is released and the record returns to its original position, it comes off the latch piece, allowing the record to rotate. In order to stop the record immediately after playback is finished and to prevent the record from idling when winding up after playback, the record is equipped with a rotating claw body and a rotating stop claw body on the casing. , multiple recording grooves are provided, and in order to play this recording sequentially,
Protrusions for temporarily latching and stopping the record at a position where the introductory part of the recording groove is anastomosed with the pick-up are provided as selection stops that protrude from the sides of a plurality of records according to the number of recording grooves, and the operating rod is The rotation plane of this protrusion is made to appear and retract, and also serves as a selection rod, so that a spring motor-driven sound reproduction device can be installed.
To have a simple structure and to perform accurate sequential reproduction operations.

[Conventional technology]

Conventionally, spring motor-driven sound reproduction devices with a simple structure use a constant torque spring motor.
For this winding, a so-called string winding method was used. This has the advantage that the string can be rolled up and stored inside the device as a means of hoisting the constant torque spring motor, making it more compact, and that the hoisting operation can be performed with a simple action of pulling the string. Therefore, it is widely used.

[Problem to be solved by the invention]

However, it is desired to incorporate a simple sound reproducing device that uses a winding knob to wind up a constant torque spring motor, particularly in talking dolls, other toys, and other simple sound devices. in this case,
Since the record disc is housed in a casing, it is not possible to perform winding operation of the spring motor while holding down the wheels by hand to prevent unwinding, as is the case with toy cars, for example.

To prevent this unwinding, it may be possible to use a ratchet, but this would require a device to hold down the ratchet and hold it in the unrolled state during playback, and this configuration would be complicated in relation to the playback starting mechanism.

Further, when a spring motor is used in the sound reproduction device, if the end of the playback is not timed with the end of rotation of the record, the playback needle of the pickup will be moved unnecessarily. Furthermore, if the record is wound after the end of playback or during playback, the record will spin idly. This problem is the same in the conventional string-pulling winding system, and a solution has been desired.

Furthermore, when this type of sound reproduction device is incorporated into a doll or a simple educational toy, for example, it may be required to sequentially reproduce recordings of related contents by sequential playback start operations. .

This invention solves this problem of this type of simple sound reproduction device, and its purpose is to provide a simple sound reproduction device driven by a spring motor using a winding knob. It is an object of the present invention to provide a simple sound reproducing device driven by a spring motor that prevents unwinding and idling from occurring when operating a winding knob.It is also an object of the present invention to provide a simple sound reproducing device driven by a spring motor that prevents winding and unwinding from occurring when the winding knob is operated. A further object of the present invention is to match the rotation and stop of the record with the stop of the record to prevent the playback needle of the pick-up from running dry. It is a further object of the present invention to provide a sound reproduction device which can reproduce a plurality of recording grooves sequentially by a playback start operation. It is in.

[Means to solve the problem]

The simple sound reproducing device driven by a spring motor of the present invention includes (a) a casing, and (b) a center shaft installed inside the casing that is supported so as to be movable in the axial direction, and a plurality of recording grooves are formed on the recording surface. (c) a speaker cone held and installed within the casing and having a diaphragm formed on its bottom; (d) joined to the diaphragm at the back surface. (e) a tone arm carrying a pick-up at its tip and pivotally mounted so as to be able to rotate along the recording surface of the record; (f) A stylus that is formed to correspond to the number and position of the recording grooves and rotates together with the record in order to stop the record at a position where the playback start point of the recording groove can anastomose with the pickup. a plurality of protrusions; (g) a first spring that urges the record in a forward direction along the center axis to cause the recording groove of the record to anastomose with the playback needle; (h) the pick-up; a second spring that biases the tone arm in a direction to return it to the playback start point of the record; (i) a winding knob that is supported by the center shaft and can move forward and backward in the axial direction; and (j) this a winding wheel that engages with the winding knob in the winding direction and moves forward and backward together with the winding knob; (k) a winding reel that is rotated by the rotation of the winding wheel and winds a constant torque spring; and (l) the winding reel. (m) a third spring that biases the winding wheel and the winding knob in the backward direction; a protruding locking piece; (o) pushed by the forward movement of the hoisting wheel to engage the locking piece; pushed back by the retreat of the record; and further returned to the forward movement of the record by the first spring; (p) an idling prevention piece that is biased by a fifth spring so as to be disengaged from the locking piece and installed between the winding wheel and the record; (p) engaging with the protrusion; The rotation of the record,
a selection section that positions and stops the next recording groove on the playback needle at the next playback start point and starts the next rotation by releasing the engagement; and a selection section that presses the recording surface of the record to move the record to the first position. a pressing portion that is moved backward against the biasing force of a spring to retreat the idle rotation prevention piece and return the pick-up to a playback starting point, and when the pressing force is released, the record is advanced by the biasing force of the first spring; The input position at the rear end is projected outside the casing, and a fourth spring normally biases the selection section away from the protrusion and the pressing section away from the record, so that the input position is parallel to the center axis. It is equipped with a controlled operating lever and

Further, the combined invention further provides the configurations (a) to (p), (q) a rotary claw body that is provided on the center shaft so as to be movable forward and backward integrally with the record disc and rotates together with the record disc; ) A rotation stop claw body is provided in the casing and engages with the advanced rotating claw body to stop the rotation of the record.

[Effect]

In this invention, the winding knob and the winding wheel are supported on the center shaft so as to be integral in the winding direction and the axial direction, and the record disc is biased in the pick-up direction and can be moved on the center shaft. A slip prevention rod is installed between the hoisting wheel and the hoisting wheel.
When the pick-up is in the middle of playback and the winding knob is pressed for the first time, the spin-stopping rod is pushed by the winding wheel and engages with the latch piece of the record. However, when the record moves away from the pick-up due to the pressure of the operating lever that also serves as the starting lever, it is pushed back. When the pressure on the operating lever is released and the record returns to its original position, it is released from the latch piece and the record is released. Allowing rotation, the operating rod is still in a position where it hangs over a protrusion protruding from the side of the record, and with the record temporarily secured by the protrusion, the lead-in portion of the predetermined recording groove is anastomosed with the playback needle of the pick-up. be placed in a position where it can be In other words, when the operating rod moves back further and comes off the protrusion, allowing the record to rotate, the pick-up anastomoses to the surface of the record.
into the designated recording groove. When the reproduction of the recording groove is completed, the rotary claw body and the rotation stop claw body engage with each other to immediately stop the record disc. When the control rod is pressed to rotate the record again, the record rotates until the next protrusion engages the control rod, and the record is stopped by that protrusion, allowing the next recording groove to anastomose with the pick-up. Placed. Its operation is the same as described above.

〔Example〕

As shown in FIGS. 1 and 2, the casing 1 is
It consists of a chassis 1a and a housing 1b. The chassis 1a has a disc-shaped winding knob 1 on its back plate 20.
1 is fitted and held so that it can move forward and backward.

The chassis 1a further includes a middle plate 21 and a front plate 22.

At the center of the winding knob 11 is a casing 1.
A center shaft 2 is supported and erected inward in the thrust direction. Therefore, this center axis 2
penetrates the middle plate 21, and its tip is supported by the front plate 22 so as to be movable forward and backward.

This center shaft 2 has a gear hoisting wheel 12 under the middle plate 21, and also has a gear hoist 12 between the middle plate 21 and the front plate 22.
Between them, a turntable 23 holding the record disc 3 integrally in the rotational direction and the axial direction is supported freely in the rotational direction and the axial direction, respectively.

On the joint surface between the winding wheel 12 and the winding knob 11,
A first ratchet 24 is provided which latches onto each other only in the winding direction. A third spring 13 is compressed between the middle plate 21 and the hoisting wheel 12, so that the hoisting wheel 12 and the hoisting knob 11 are both biased in the backward direction, and the first ratchet 24 is It is ready for engagement. Further, the center of the turntable 23 is a cylindrical shaft 25, and the tip thereof is a rotary claw body 18. This engages with a rotation stop claw body 19 formed on the back side of the portion of the front plate 22 that supports the center shaft, thereby locking the turntable 23 in the reproduction rotation direction.

The turntable 23 is also biased and supported in the forward direction by a first spring 4 that is compressed between the middle plate 21 and the turntable 23.

The record disc 3 has a concave part 3a in the center, and the inner circumferential circle of the record disc 3 is fitted into the boss ring of the turntable 23, and the turntable 2 is rotated in the rotation direction and the axial direction.
It is integrated with 3. This record 3 is the third
As shown in the figure, it has four recording grooves 8.
In addition, four protrusions 43 are provided on the outer circumferential surface of the turntable 23 (see FIG. 1) so as to protrude laterally from the outer circumferential surface of the record disc 3, corresponding to the introduction portion of the recording groove 8. . In the recording grooves 8, related contents are recorded sequentially from the front in the rotational direction of the record 3 to the rear.

The record disc 3 and the turntable 23 are integrally stacked one on top of the other, and a pulley groove 26 is formed on the outer periphery of their combined connection.

The chassis 1a is provided with a governor 27 at the lower side of the pulley groove 26, which is connected to the shaft 2.
8, the belt 29 is passed through the pulley groove 26 and rotates together with the record 3 and the turntable 23. At this time, the regulating piece 30 rubs against the chassis 1a, resisting the rotation of the turntable 23 and the record 3. Adjust the speed.

The shaft 28 of the governor 27 is supported by the front plate 22, and an auxiliary governor 31 is provided at the end of the shaft supported by the front plate 22. The auxiliary governor 31 has a belt sliding rod 33 biased by a sixth spring 32, which slides on the belt 29 and resists rotation of the belt 29. That strength is the 6th
It is determined by the degree of winding of the spring 32.

A drive system shaft 34 is provided upright on the side of the hoisting wheel 12 on the chassis 1a, and a hoisting driven wheel 35, which is a gear, is rotatably supported on this shaft and meshes with the hoisting wheel 12. . The hoisting drive mechanism 35 has a tooth length that allows the axial movement of the hoisting wheel 12, and is coaxially connected to a take-up reel 36 of a constant torque spring motor.
Fixed. In particular, as shown in FIG. 2, the chassis 1a is separately provided with a storage reel 37 for a constant torque spring motor, from which a constant torque spring 38 is pulled out and wound around a take-up reel 36. It's summery.

A drive wheel 39 is coaxially supported on the front surface of the take-up reel 36. The joint surface between the drive wheel 39 and the take-up reel 36 is free from the drive wheel 39 when the take-up reel 36 rotates in the take-up direction, and only when the take-up reel 36 rotates in the drive direction, the drive wheel 39
A latch 40 is provided such that the latch 9 is integrated with the take-up reel 36. A seventh spring 41 is compressed between the front plate 22 and the drive wheel 39, and the drive wheel 39 is always in elastic contact with the take-up reel 36.

A driven wheel 42 of a gear is integrally formed on the central rear surface of the turntable 23 and meshes with the driving wheel 39 . Note that the driven wheel 42 has a sufficient tooth length to allow meshing with the driving wheel 39 even if the driven wheel 42 moves in the axial direction.

A locking piece 14 that protrudes toward the middle plate 21 is fixed at a suitable place on the back surface of the turntable 23, and a protrusion 43 that protrudes toward the side of the record disc 3 is fixed on the outer peripheral edge of the turntable 23. has been done. Middle plate 2
1, a sleeve 44 is fixedly installed on the side of the center shaft 2 in parallel thereto, and an idling prevention rod 15 is installed in the sleeve 44.
is held slidably in the axial direction. The slip prevention rod 15 is longer than the sleeve 44, and its front and rear ends are spaced from the back of the turntable 23 and the front of the hoisting wheel 12 at a distance smaller than the amount by which the turntable 23 and the hoisting wheel 12 move in the axial direction. We are facing each other.

A horizontal slit 45 communicating with the inside of the sleeve 44 is provided on the side surface of the sleeve 44, and a fifth spring 46 is inserted here.
, which presses against the side peripheral surface of the idling prevention rod 15. In this way, the slipping prevention rod 15 is caused by friction.
The axial position established within the sleeve 44 can be maintained.

The fifth spring 46 is wound around a post provided on the front surface of the middle plate 21 and is biased so as to pass through the above-mentioned horizontal slit 45.

A tone arm 9 having a pickup 7 biased in a direction away from the playback start point of the record 3 and the recording surface of the record 3 is pivotally mounted on the front surface of the front plate 22. Note that the biasing of the tone arm 9 is as follows.
This is done by the second spring 10. In the diagram, 4
7 is a pick-up guide hole.

In particular, as shown in FIG.
is fixedly installed, and the diaphragm 6 is joined to the back surface of the pickup 7.

The playback needle N of the pickup 7 faces the recording surface of the record 3 through the guide hole 47 and joins it.

An operating rod 17 is provided on the front plate 22 on the side of the center shaft 2 and parallel thereto.

The operating rod 17 is always urged in a direction away from the record 3 by the fourth spring 16 and is held within the sleeve 48 so as to be movable back and forth. One end thereof protrudes from the front surface of the housing 1b, and the other end, the pressing portion 17a, passes through the middle plate 21 and presses the record disc 3 when the operating rod 17 is pushed against the urging force of the fourth spring 16. The recorder 3 is arranged so as to move the recorder 3 backward.

Further, the selection portion 17b of the operating rod 17 has a shape branching from its side surface, and when pressed, it faces directly to the side of the turntable 23 and engages with the protrusion 43.

This embodiment works as follows.

FIG. 1 shows the state during playback, but when the playback is finished, the playback needle N reaches the playback end point of the record 3, that is, the concave part 3a provided in the center, and falls there. 3 and the turntable 23 lose support from the regenerating needle and move forward under the bias of the first spring 4. At the same time, the rotating claw body 18 engages with the rotation stop claw body 19 to stop the rotation of the record disc 3 and the turntable 23.

Here, it is assumed that a series of winding operations of the constant torque spring 38 are performed. First, the winding knob 11 is pushed forward and rotated in the forward state. This pushing of the winding knob 11 further pushes the slip prevention rod 15 to advance the turntable 23.
Continue until you reach the back of the Idle rotation prevention rod 15
is maintained in its advanced position by a fifth spring 46. With this, the turntable 23
A locking piece 14 and a slip prevention rod 15 formed on the back side
are engaged with each other to prevent the constant torque spring from idling during the winding operation.

Thus, the subsequent winding operation may be performed without pressing the winding knob 11. At this time, since the hoisting wheel 12 is integrated in the hoisting direction by the ratchet 24, it rotates in the same direction, rotating the hoisting driven wheel 35 meshing with the hoisting wheel 12,
A take-up reel 36 integrated with the wind-up driven wheel 35 is rotated in the rotational direction. Constant torque spring 38
is wound onto the take-up reel 36 from the accumulating reel 37 against its elasticity.

When the constant torque spring 38 is wound around the take-up reel 36, the turntable 23 and the record 3
A driving force is generated.

In addition, by the ratchet 40, the hoisting driven wheel 35
The drive wheels 39 are configured not to rotate.

After winding is completed, press the operating rod 17.
The operating rod 17 has a pressing portion 17a that presses and moves the record 3 in the backward direction. At this time, the slip prevention rod 15 is pushed back to its original position. Thus, the rotating claw body 18 comes off the rotation stop claw body 19, allowing the record disc 3 and turntable 23 to rotate.
Note that the latch piece 14 is attached to the retracted slip prevention rod 15.
and does not interfere with the rotation of the turntable 23. Therefore, the driving wheel 39 is rotated via the ratchet 40 by the constant torque spring motor, and the driven wheel 42 and turntable 23 are rotated. As mentioned above, at the same time as the record 3 moves backward, the pickup 7 returns to the playback starting point.

When the operating rod 17 is pressed, the selection section 1
When the protrusion 43 of the turntable 23 rotates and engages the playback point 7b, the specific recording groove 8 is placed at a position where the playback needle N of the pickup 7, which has returned to the playback starting point, can anastomose with the specific recording groove 8. At this point, the rotation of the record 3 is stopped. When the operating rod 17 is completely opened and moved backward, the record 3 moves forward and stylus pressure is applied to the playback stylus N. At the same time, the operating rod 17 releases the protrusion 43 to allow the record 3 to rotate. Then, playback is performed. When the reproduction of this particular recording groove 8 is completed, the rotary claw body 18 and the rotation stop claw body 19 engage with each other to stop the record disc 3.

Then, as mentioned above, when you press the operating rod 17,
With the same operation as described above, the pickup 7 returns to the playback starting point, and the next protrusion 43 of the record 3 moves to the operating lever 1.
7, and as described above, the next recording groove 8 is placed in a position where it can be anastomosed with the playback needle N of the pickup 7. In this way, the recording grooves 8... can be sequentially reproduced by operating each time the reproduction of one recording groove is completed.

Now, in the middle of playback, when the winding knob 11 is pushed and the slip suppression rod 15 is hooked onto the latch piece 14 on the back of the turntable 23, the turntable 23 and the record 3 are stopped. In this state, the rotating claw body 18
Although the rotation stopping claw body 19 is separated, even if the winding knob 11 is operated to wind up the winding, the slipping prevention rod 15 is engaged with the latch piece 14, so that the winding can be carried out without slipping.

〔Effect of the invention〕

According to this invention, if the recorded contents of the recording grooves are associated in sequence, successive playback can be performed by successive operations of the operating lever. In addition, even in such a simple sound reproduction device driven by a spring motor, the record does not idle after the end of reproduction, and the reproduction needle does not keep rubbing unnecessarily. It also eliminates idling during winding operations.

The parts constituting this invention include a winding knob, a winding wheel, and an axial movement between the record and the winding wheel to lock the rotation of the record, and release the lock to allow rotation. It has simple components such as a moving idling prevention rod, a latch piece configured on the back of the record, a rotating claw body, a rotation stopping claw body, and a starting lever that also serves as a selection lever and an operating lever, and its construction is extremely simple. Because of this, the operation is smooth, and the winding operation is as simple as pressing the winding knob when winding the record for the first time, which prevents the record from idling during winding.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the embodiment, FIG. 2 is an exploded perspective view with the housing removed, and FIG. 3 is a plan view of the record. In the figure, 1 is the casing, 2 is the center shaft, 3 is the record, 3a is the recess, 4 is the first spring, 5 is the speaker cone, 6 is the diaphragm, 7 is the pickup, 8 is the recording groove, 9 is the tone arm, 10
1 is a second spring, 11 is a winding knob, 12 is a winding wheel, 13 is a third spring, 14 is a locking piece, 1
5 is an idle rotation prevention rod, 16 is a fourth spring, 17 is an operating rod, 17a is a pressing portion, 17b is a selection portion, 18
19 is a rotating claw body, 19 is a rotation stopping claw body, 36 is a take-up reel, 39 is a drive wheel, N is a regeneration needle, 43 is a protrusion,
46 is a fifth spring.

Claims (1)

[Scope of Claims] 1 (a) a casing; (b) a center shaft installed inside the casing that is supported so as to be movable in the axial direction; a plurality of recording grooves are formed on the recording surface; (c) a speaker cone that is held and installed within the casing and has a diaphragm formed on its bottom; (d) a pick-up that is connected to the diaphragm on the back side, and (e) a tone arm carried on the pickup and pivotally mounted so as to be able to pivot along the recording surface of the record; and (e) a playback needle carried on the pick-up and directed toward the recording surface of the record. (f) a plurality of protrusions that are formed in correspondence with the number and position of the recording grooves and rotate together with the record in order to stop the record at a position where the playback start point of the recording groove can anastomose with the pickup; g) a first spring that urges the record in the forward direction along the center axis to anastomose the recording groove of the record with the playback stylus; (i) a winding knob that is supported by the center shaft and is movable back and forth in the axial direction; (j) the winding knob and the winding direction; (k) a winding reel that is rotated by the rotation of the winding wheel and winds a constant torque spring; (l) a winding reel that rotates the winding reel in the unwinding direction; a rotation transmission mechanism that transmits only the rotation to the record; (m) a third spring that biases the winding wheel and the winding knob in the backward direction; and (n) a latch protruding from the back side of the record. (o) pushed by the forward movement of the winding wheel to engage the locking piece, pushed back by the retreat of the record, and further engaged with the locking piece by the return of the record forward by the first spring; (p) an idling prevention piece that is biased by a fifth spring so as to be disengaged and installed between the winding wheel and the record; (p) that engages with the projection and prevents rotation of the record;
a selection section that positions and stops the next recording groove on the playback needle at the next playback start point and starts the next rotation by releasing the engagement; and a selection section that presses the recording surface of the record to move the record to the first position. a pressing portion that is moved backward against the biasing force of a spring to retreat the idle rotation prevention piece and return the pick-up to a playback starting point, and when the pressing force is released, the record is advanced by the biasing force of the first spring; The input position at the rear end is projected outside the casing, and a fourth spring normally biases the selection section away from the protrusion and the pressing section away from the record, so that the input position is parallel to the center axis. A simple sound reproducing device driven by a spring motor, characterized in that it is equipped with a controlled operation rod and the following. 2. (a) a casing; (b) a center shaft installed in the casing so as to be movable in the axial direction; a plurality of recording grooves formed on the recording surface; (c) a speaker cone held and installed in the casing and having a diaphragm formed on its bottom; (d) a speaker cone having a pickup connected to the diaphragm on the back surface, the top end of which carries a pickup; a tone arm pivotally mounted so as to be able to pivot along the recording surface of the record; (e) a playback needle carried by the pick-up and directed toward the recording surface of the record; and (f) a recording device. (g) a plurality of protrusions that are formed in correspondence with the number and position of recording grooves and rotate together with the record in order to stop the record at a position where the playback start point of the groove can anastomose with the pick-up; (h) a first spring biased in a forward direction along the center axis to anastomose the recording groove of the record to the playback stylus; a second spring that biases the tone arm; (i) a winding knob that is supported by the center shaft and can move forward and backward in the axial direction; and (j) a winding knob that engages with the winding knob in the winding direction. (k) a take-up reel that is rotated by the rotation of the take-up wheel and winds a constant torque spring; (l) a take-up reel that rotates only the rotation of the take-up reel in the unwinding direction to record a record; (m) a third spring that biases the winding wheel and the winding knob in the backward direction; (n) a latch piece protruding from the back side of the record; (o) It is pushed by the forward movement of the winding wheel to engage the locking piece, is pushed back by the retreat of the record, and is disengaged from the locking piece by the return of the record forward by the first spring. an idling prevention piece biased by a fifth spring and installed between the winding wheel and the record; (p) engaging with the protrusion to prevent rotation of the record;
a selection section that positions and stops the next recording groove on the playback needle at the next playback start point and starts the next rotation by releasing the engagement; and a selection section that presses the recording surface of the record to move the record to the first position. a pressing portion that is moved backward against the biasing force of a spring to retreat the idle rotation prevention piece and return the pick-up to a playback starting point, and when the pressing force is released, the record is advanced by the biasing force of the first spring; The input position at the rear end is projected outside the casing, and a fourth spring normally biases the selection section away from the protrusion and the pressing section away from the record, so that the input position is parallel to the center axis. (q) a rotary claw body that is provided on the center shaft so as to be movable forward and backward together with the record disc and rotates together with the record disc; (r) a rotary claw body that is provided in the casing and moves forward; A simple sound reproducing device driven by a spring motor, comprising: a rotation stopper that engages with the rotation of the record to stop the rotation of the record;