JP2020199109A - Doll toy - Google Patents

Abstract

To provide a doll toy capable of presenting smooth and fine movements.SOLUTION: A doll toy including a body part swinging by motor power comprises: a first crank rotatably formed around a first shaft by motor power and provided with a first pin in a position decentered from the first shaft; a second crank rotatably formed around a second shaft in parallel to the first shaft by motor power, and provided with a second pin in a position decentered from the second shaft; and a link having a base end part engaged with the first pin of the first crank, engaged with the second pin of the second crank in a long hole of an intermediate part, and having a tip part engaged with the body part. The first crank and the second crank are different from each other in at least one of the rotation speed and the crank length, and the body part swings via the link with the rotation of the first crank and the second crank.SELECTED DRAWING: Figure 7

Description

The present invention relates to a doll toy.

Conventionally, there is a crank mechanism as one of the operation mechanisms of an operation toy. The crank mechanism is mainly used to convert rotary motion into reciprocating motion (reciprocating linear motion or reciprocating rocking motion).
Patent Document 1 discloses a doll toy in which the head is operated by this crank mechanism.

Utility Model Registration No. 3177923

By the way, since doll toys imitate various characters or various animals, it is preferable to be able to express smooth and fine movements that resemble the movements they have.
However, if only one crank is used, the part operated by the crank will only reciprocate linear motion or reciprocate swing motion around one axis, which will be a simple motion and express a fine motion. Is difficult. Further, if it is attempted to realize fine movement with one cam, which is a sliding contact element, the shape of the cam becomes complicated, the sliding contact resistance becomes large, and smooth movement cannot be expected.
The present invention has been made in view of such a problem, and an object of the present invention is to provide a doll toy capable of expressing smooth and fine movements.

The first means is
In a doll toy with a body part that swings by motor power
A first crank that is configured to be rotatable around the first axis by the motor power and has a first pin attached at a position eccentric from the first axis.
A second crank that is configured to be rotatable around a second axis parallel to the first axis by the motor power and has a second pin attached at a position eccentric from the second axis.
With a link in which the base end portion engages with the first pin of the first crank, engages with the second pin of the second crank with a long hole in the middle portion, and engages with the tip portion with the body portion. With,
At least one of the rotation speed and the crank length of the first crank and the second crank are different from each other, and as the first crank and the second crank rotate, the body part via the link It is characterized by swinging. The movement changes when the rotation speed is changed, and the magnitude of the movement changes when the crank length is changed. When both the rotation speed and the crank length are the same, a parallel motion mechanism is used.

The second means is the first means, and the first crank and the second crank are characterized in that the rotation speed ratio is 2: 1.

The third means is a first means or a second means, wherein the body part is the head of the doll toy and swings left and right.

The fourth means is the third means,
A power source, a motor, a power transmission mechanism for transmitting power from the motor to the first crank and the second crank, and the first crank and the second crank are assembled, and the tip end side of the link protrudes from the main body. And the operation unit that constitutes the skeleton of the doll toy
It has elasticity, and is characterized by including a cover that is put on the motion unit and constitutes the outer skin of the doll toy and constitutes the body part.

The fifth means is the fourth means, in which the tip end portion of the link is provided so as to project above the main body of the operation unit, and the cover has a bag shape with an open lower end and the operation unit. It is characterized in that it is covered from above.

According to the first means, since the link swings by the first crank and the second crank, the link moves finely as compared with the case of one crank, while the first crank and the second crank are rotated. Since the movement can be generated only by itself, the movement becomes smoother than when a cam or the like is used.

According to the second means, since the rotation speed ratio is 2: 1, it is possible to make the body part move in a substantially heart shape or a substantially reverse heart shape.

According to the third means, the head of the doll toy can be moved smoothly and finely, and the doll toy has a surprising and cute swinging motion.

According to the fourth means, the cover, which is the exodermis, expands and contracts according to the movement of the head, so that it is possible to create an image of moving the entire body. In addition, doll toys with various appearances can be realized by changing the cover.

According to the fifth means, the cover can be easily changed.

It is a perspective view which showed the appearance of the doll toy of an embodiment. It is a perspective view which showed the operation unit and the cover of a doll toy. It is a perspective view which showed the state which looked at the operation unit from below. It is a perspective view which showed the state which saw the operation mechanism of the operation unit from the front. It is a perspective view which showed the state which saw the operation mechanism of the operation unit from the side. It is a perspective view which showed the state which a part of the operation mechanism of an operation unit was seen from the front. It is a rear view which showed the operation mechanism of the operation unit. It is a figure which showed the connection structure of a link and a cover. It is a block diagram which showed the control configuration. It is a figure for demonstrating an example of the movement of the 1st crank, the 2nd crank and a link. It is a figure for demonstrating another example of the movement of a 1st crank, a 2nd crank and a link. It is a figure which showed an example of the movement of a doll toy. It is a figure which showed other example of the movement of a doll toy.

"overall structure"
FIG. 1 shows the appearance of the doll toy 100 of the embodiment.
As shown in FIG. 2, the doll toy 100 of the present embodiment includes an operation unit 10 and a cover 60. The operation unit 10 constitutes the skeleton of the doll toy 100, and the cover 60 constitutes the outer skin of the doll toy 100. As a result, various doll toys 100 having different appearances can be realized by simply changing the cover 60 to another one having a different appearance without changing the operation unit 10.
Here, the operation unit 10 includes a round-headed cylindrical main body. As shown in FIG. 3, the operation unit 10 has left and right wheels 11 and 12 and auxiliary wheels 15 whose lower end protrudes from the lower surface and moves the entire doll toy 100, and a link 55 connected to the cover 60 (as an operation member). (See FIG. 2). Further, a battery lid 1a is provided on the lower surface of the operating unit 10, and two AA batteries serving as a power source can be stored in the operating unit 10 by opening or removing the battery lid 1a. The power supply is not limited to AA batteries.

《Detailed composition》
1. 1. Cover 60
The cover 60 is made of a soft elastic material such as silicone rubber or other rubber. The cover 60 is formed in a bag shape and is covered from above the operating unit 10 so as to cover a portion other than the lower surface of the operating unit 10. The cover 60 is formed with the eyes, nose, mouth, hands and feet of the doll toy 100. The cover 60 may be made of a non-stretchable cloth.

2. 2. Operating unit 10
(1) Traveling mechanism As shown in FIG. 4, the traveling mechanism operating unit 10 includes a motor M, which is a power source, and a traveling mechanism (operating mechanism), which is operated by motor power and rotationally drives the left and right wheels 11 and 12. It is provided. According to this traveling mechanism, as shown in FIGS. 4 and 5, the power of the motor М is transmitted to the right wheel 12 via the gears 21 to 31. Here, the gear 21 is a screw gear and the gear 28 is a crown gear.

The right wheel 12 is fixed to the axle 13 and rotates integrally with the axle 13. The left wheel 11 is provided on the axle 13 so as to be idle. As shown enlarged in FIG. 6, the left wheel 11 can be connected to the axle 13 via the one-way meshing clutch 14. That is, the left wheel 11 is connected to the axle 13 when the axle 13 rotates in the reverse direction, and rotates integrally with the right wheel 12.

Further, as shown in FIG. 6, a claw gear 17 is attached to the inside of the left wheel 11, and a check claw 18 is provided near the claw gear 17. The check claw 18 prevents the left axle 13 from rotating in the forward direction, and allows the axle 13 to rotate in the backward direction.

(2) Swing mechanism A swing mechanism (movement mechanism) for swinging the cover 60 is provided in the operation unit 10. According to this swing mechanism, the power of the motor М is transmitted to the first crank 50 via the gears 21 to 26 and 41. The number of teeth of the gear 26 is 28. Further, the power of the motor М is transmitted to the second crank 51 via the gears 21 to 26, 26a and 42. The number of teeth of the gear 26a is 14. The gear 26a is a gear having a small diameter with respect to the gear 26, and is integrally formed with the gear 26. The number of teeth of the gears 41 and 42 is 32. Therefore, the gear 41 and the gear 42 rotate in the same direction, and the rotation speed ratio is 2: 1. The number of teeth and the rotation speed ratio of each gear are not limited to this.

As shown in FIG. 7, the first crank 50 is provided below the second crank 51. The first crank 50 is configured by attaching a pin 50b at an eccentric position of a disk 50a that rotates about a shaft 41a of a gear 41. Further, the second crank 51 is configured by attaching a pin 51b at an eccentric position of a disk 51a that rotates about a shaft 42a of the gear 42.
The first crank 50 is connected to the base end portion of the link 55 via the pin 50b, and the link 55 is rotatable around the pin 50b. Further, the pin 51b of the second crank 51 is inserted into the elongated hole 55a in the middle portion of the link 55.

The tip of the link 55 projects above the main body of the operating unit 10, and an engaging disk 56 is attached to the tip. As shown in FIG. 8, the engaging disk 56 fits into the annular convex portion 61 formed inside the cover 60. The inner diameter of the annular convex portion 61 is smaller than the outer diameter of the engaging disk 56, and an annular engaging groove 61a is formed on the inner wall surface of the annular convex portion 61. By extending the annular convex portion 61 to engage the engaging discs 56 and engaging the edges of the engaging discs 56 with the annular engaging grooves 61a, the cover 60 and the engaging discs 56 and thus the link 55 are engaged. Are combined.

3. 3. Control configuration A computer is mounted on the doll toy 100 of the embodiment. As shown in FIG. 9, the computer includes a central processing unit 110, a storage device 120, an input device 130, and an output device 140. The central processing unit 110 includes a control device 111 and an arithmetic unit 112. Further, the storage device 120 includes a main storage device 121 and an auxiliary storage device 122.

The control device 111 decodes the instruction of the operation program and controls the operation of the entire computer. The arithmetic unit 112 performs calculations such as four arithmetic operations and data arithmetic processing. The main storage device 121 temporarily stores the operation program. The auxiliary storage device 122 stores operation programs and data for a long period of time. The input device 130 includes a sound collecting device. Here, the sound collector includes a microphone 131. The output device 140 includes an operating device and a sound output device. The operating device includes a motor М, and the sound output device includes a speaker S.

(Overall operation)
To briefly explain the operation of the doll toy 100, when the microphone 131 picks up a continuous sound (for example, calling a name) for 1 second or longer, a joyful voice is emitted from the speaker S. When the microphone 131 picks up a sound within 1 second (for example, the sound of clapping a hand), the doll toy 100 rotates the left and right wheels 11 and 12 in small steps in the forward and reverse directions due to the forward and reverse rotation of the motor M. Move your body back and forth in small steps. Further, when the microphone 131 continuously picks up a sound within 1 second (for example, a sound of clapping a hand), the doll toy 100 retracts. Further, for example, when the microphone 131 picks up a sound (for example, a sound calling a name) for a total of 100 times or more and 1 second or more, the sound input retreats without any sound input and moves while playing music from the speaker S.

(Swing of cover 60)
The swing of the cover 60 is caused by the operation of the link 55.
FIG. 10 is a diagram showing an example of the operation of the first crank 50, the second crank 51, and the link 55. The numbers 0-8 attached to the first crank 50, the second crank 51 and the link 55 indicate the temporal change positions of the first crank 50, the second crank 51 and the link 55, and the same numbers indicate the same time. Indicates the position in. Black circles indicate pins.
In the doll toy 100 of the embodiment, as shown in FIG. 10, when the pin 50b of the first crank 50 is in the uppermost position (position of point 0), the pin 51b of the second crank 51 is in the lowest position (point 0). The link 55 is at the highest position (position at point 0).
Here, when the first crank 50 and the second crank 51 are rotated counterclockwise when viewed from the rear by the motor M, the rotation speed ratio of the first crank 50 and the second crank 51 is 2: 1, so that the link 55 First swings to the right to the position of point 1, then swings to the left, passes through the position of point 2 and the position of point 3, and returns to the initial position (position of point 0). Further, the link 55 swings to the left, swings to the position of point 7 through the position of point 5 and the position of point 6, and then swings to the right to return to the initial position (position of point 0).
The locus drawn by the upper end of the link 55 at this time has a substantially inverted heart shape. FIG. 12 shows how the doll toy 100 swings. Since the link 55 and the cover 60 are connected, for example, when the head swings to the left, the left side of the cover 60 bends and the right side extends. Further, when the head swings to the right, the left side of the cover 60 bends and the right side extends when viewed from the front. That is, it behaves as if the body is bent sideways. Also, the cover 60 will be extended when the head is upright.

Further, in the doll toy 100 of the embodiment, as shown in FIG. 10, when the pin 50b of the first crank 50 is in the lowest position (position of point 0), the pin 51b of the second crank 51 is also in the lowest position (position of point 0). It can be set so that it is at the position of point 0) and the link 55 is at the highest position (position of point 0). In this case, the locus drawn by the upper end of the link 55 is substantially heart-shaped.
FIG. 13 shows how the doll toy 100 swings. When the head is upright, the cover 60 bends uniformly to some extent in the circumferential direction. At this time, in the initial position, the vicinity of the hem of the cover 60 is totally bent, so that the body behaves as if it were sunk.

<< Effect of the embodiment >>
As the main effect of the doll toy 100 of the present embodiment, since the link 55 is operated by the first crank 50 and the second crank 51, the movement of the link 55 is smooth, and the link 55 moves with the operation. Since the direction changes with the plane position, it is possible to make fine movements.

<< Modification example >>
Although the embodiments of the present invention have been described above, it is needless to say that the present invention is not limited to such embodiments and can be variously modified without departing from the gist thereof.
For example, although the rotation directions are the same, different rotation directions may be used. Even in this case, the body part moves so as to draw a similar figure. In this case, the crank length and the link length may be changed between the first crank 50 and the second crank 51.

It can also be applied to figurines other than doll toys.

М Motor 10 Operating unit 10 Doll toy 11 Wheel 12 Wheel 14 Clutch 50 1st crank 51 2nd crank 56 Engagement disk 60 Cover 100 Doll toy

Claims (5)

In a doll toy with a body part that swings by motor power
A first crank that is configured to be rotatable around the first axis by the motor power and has a first pin attached at a position eccentric from the first axis.
A second crank that is configured to be rotatable around a second axis parallel to the first axis by the motor power and has a second pin attached at a position eccentric from the second axis.
With a link in which the base end portion engages with the first pin of the first crank, engages with the second pin of the second crank with a long hole in the middle portion, and engages with the tip portion with the body portion. With,
At least one of the rotation speed and the crank length of the first crank and the second crank is different from each other, and as the first crank and the second crank rotate, the body part via the link A doll toy characterized by swinging. The doll toy according to claim 1, wherein the first crank and the second crank have a rotation speed ratio of 2: 1. The doll toy according to claim 1 or 2, wherein the body part is the head of the doll toy and swings left and right. A power source, a motor, a power transmission mechanism for transmitting power from the motor to the first crank and the second crank, and the first crank and the second crank are assembled, and the tip end side of the link protrudes from the main body. And the operation unit that constitutes the skeleton of the doll toy
The doll toy according to claim 3, further comprising a cover that has elasticity and is covered with the movement unit to form an outer skin of the doll toy and constitutes the body part. The claim is characterized in that the tip end portion of the link is provided so as to project above the main body of the operating unit, and the cover has a bag shape with an open lower end and is covered from above the operating unit. The doll toy according to 4.

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