JPH0615674Y2 - Forward / reverse device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a forward / reverse rotation device suitable for use in toys and the like.

(Prior Art) For example, in a toy that uses Zenmai as a drive source, there is a toy in which a plurality of movable bodies are normally or reversely rotated. 62-29036
As is known in Japanese Patent Publication, one of the rotating toys with a music box that uses Zeni as a driving source, one movable body is rotated in one direction in response to the sound of the music box, and the surroundings of this movable body. It is known to rotate another movable body (toy body) forward and backward. Then, the one movable body is rotationally driven by taking out a part of the releasing force of the whole dance, and the toy body is rotated in the forward and reverse directions by the cam member substantially integrated with the one movable body. There is. That is, the device proposed in the above publication combines the sounding of a music box with the movements of a movable body that rotates in one direction and a toy body that rotates forward and backward in response to the sounding of the music box. It is a so-called action toy with a music box that you can see and enjoy.

(Problems to be solved by the invention) Since the toy body is selectively rotated in the forward and reverse directions by the cam member, it achieves the intended purpose.
Since the movement of the toy body that rotates in the normal and reverse directions is restricted by the gears and cam members, the rotation speed is almost the same for forward rotation and reverse rotation, and the movement of the toy body becomes monotonous, which makes it interesting as an action toy. There is a lack of problems. The movement of the toy body can be complicated by using a plurality of drive sources, but this increases the number of parts, increases the cost, and makes the operation troublesome. Driven by the whole dance,
A similar problem occurs in a toy that does not have a music box or an action toy that uses a motor as a drive source.

(Means for Solving the Problem) The present invention aims to provide a forward / reverse rotation device capable of obtaining a plurality of rotation speeds from a single drive source, and a tooth part is partially cut away. When the tooth gear is directly or indirectly engaged with the tooth portion of the toothless gear, it rotates forward, and when it corresponds to the toothless portion of the toothless gear, the meshing with the toothless gear is opened directly or indirectly. When the output rotor becomes free to rotate in response to the tooth-missing portion of the tooth-chipped gear, energy is stored when the output rotor rotates forward. Is opened to reversely rotate the output rotating body, a rotating body supporting member for rotatably supporting the output rotating body, the toothless gear and the rotating body supporting member are relatively driven to rotate. It is characterized by having a drive source.

(Operation) When the toothless gear or the rotor support member is relatively rotated by the drive source and the output rotor is normally rotated, the energy storage means stores energy. When this output rotor directly or indirectly corresponds to the tooth-missing portion of the tooth-missing gear, the meshing of the two is lost, so this rotor is different from the normal rotation due to the release of the energy-accumulating means. Reverse rotation at speed.

(Embodiment) Hereinafter, the present invention will be described in detail based on the illustrated embodiment.

1 and 2, reference numeral 1 generally indicates a forward / reverse rotation device. The forward / reverse rotation device 1 has a music box movement 42 as a drive source. The music box movement 42 has a well-known structure and has a built-in whole dance (not shown) as a drive source. By rotating the whole dance winding key 3 in a predetermined direction, the whole dance winding shaft 4 is rotated. The whole dance whose one end is locked to the shaft is wound up and stored, and the drum (not shown) is rotated by the releasing force of the whole dance to play a song. The rotation of the drum is controlled to be constant by a known governor mechanism. The music box movement 42 is fixed to the rotating body support member 2. On the whole dance winding upper shaft 4 rotatably inserted in the rotating body supporting member 2,
The output shaft 5 is screwed and fixed. A one-way movable member A (not shown) is screwed and fixed to the screw portion 5a of the output shaft 5. The output shaft 5 is fixed by being inserted into the hole 6a of the boss portion of the tooth-chipped gear 6 by an appropriate fixing means such as knurling. The tooth-chipped gear 6 has a tooth-chipped portion 6b formed by cutting out a part of the tooth portion 6e. The tooth portions 6d, 6d at both ends of the tooth portion 6e in the circumferential direction are formed by the slits 6c, 6
By forming c, elasticity is given.

The rotating body supporting member 2 is provided with three forward / reverse rotating portions 7A, 7B, 7C centering on the output shaft 5a. Since the structure of each of the forward and reverse rotation parts is the same, the reference numeral 7 is shown in FIG. The forward / reverse rotation part 7 includes a support part 2b formed by further bending a bent part 2a formed by bending a part of the rotary body support member 2 in an axial direction, and an output shaft 8 rotatably supported by the support member 2 main body. An output rotating body 9 fixed to the output shaft 8 by knurling or the like, and one end 10a of the output rotating body 9 is locked to the rotating body 9 and the other end 10b is locked to the bent portion 2a to serve as energy storage means. It is composed of a coil spring 10 and a planetary gear 12 that selectively transmits the rotation of the tooth-chipped gear 6 to the output rotor 9. The planetary gear 12 is press-fitted and fixed to a support shaft 11 that is movably inserted in a pair of guide holes 2c and 2d formed in an arc shape around the output shaft 5a in the rotating body support member 2. It is arranged at a position where it always meshes with the tooth portion 6e of the No. 6 gear. The output rotor 9 has a tooth portion 9a.
Is formed and selectively meshes with the planetary gear 12, but the planetary gear 12 decelerates the rotation of the tooth-chipped gear 6 and transmits it to the output rotor 9 because of the difference in diameter between them. When the whole dance winding key 3 is rotated in the whole dance winding direction, the tooth-chipped gear 6 rotates in the direction shown by the arrow a in FIG. 1, and the planetary gear 12 is moved in the planetary direction as indicated by reference numeral 12A. The mesh with the output rotary body 9 is released.
When the full movement of the music box movement 42 is released and the tooth-chipped gear 6 rotates in the direction of arrow b, the planetary gear 12 meshing with the tooth portion 6e moves in the same direction as shown by the forward / reverse rotation portion 7A in FIG. And meshes with the tooth portion 9a of the output rotary body 9 to rotate the rotary body 9 in the direction of the broken arrow. That is, the planetary gear
12 has a function as a one-way transmission clutch. A forward / reverse rotating member B is fixed to the output shaft 8 integrated with the output rotating body 9. The forward / reverse rotation member B is formed in the shape of, for example, an animal or a person.

The coil spring 10 stores energy by being wound tightly when the toothless gear 6 is rotating in the direction of the arrow b and the output rotor 9 is normally rotated in the direction of the broken arrow, and the planetary gear 12 is the toothless portion. 6b, or when the tooth-chipped gear 6 rotates in the direction of arrow a and the planetary gear 12 moves to the position of the broken line 12A to release the meshing with the tooth-chipped gear 6, it releases its stored force.

The operation of the embodiment configured as described above will be described. The forward / reverse rotation units 7A, 7B, and 7C are different only in the relative position with respect to the tooth-chipped gear 6 and operate in the same manner. Therefore, the forward / reverse rotation unit 7A will be described as a representative example. When the whole dance winding key 3 is rotated to wind up the whole dance as a drive source, the tooth-chipped gear 6 rotates in the direction of arrow a, and the tooth portion 6e of this rotates.
The planetary gear 12, which is meshed with, is moved in the same direction to release the rotation transmission between the tooth-chipped gear 6 and the output rotor 9, as indicated by reference numeral 12A in FIG. Output rotor 9 and toothless gear 6
When the meshing with is indirectly released, the stored coil spring 10 releases the stored force to rotate the output rotor 9 in the direction of the solid line arrow, and the forward / reverse rotation fixed to this. The member B is rotated. When the tooth-chipped gear 6 rotates in the direction of the arrow a, the tooth portion 6d at the end of the tooth portion 6e flexes to smoothly mesh with the planetary gear 12. When the whole dance winding key 3 is released while the whole dance is rolled up, the music box movement 42 is performed by the stored force of the whole dance (not shown).
Begins to ring. The accumulated force of all dances is controlled within a constant speed range by the governor mechanism, and rotationally drives the tooth-chipped gear 6 in the arrow b direction via the output shaft 5. Missing tooth gear 6
Rotates in the direction of the arrow b and its tooth portion 6e meshes with the planetary gear 12, the gear 12 moves in the same direction and rotates the output rotor 9 in the direction of the broken arrow. When the output rotating body 9 rotates in the direction of the broken arrow, the forward / reverse rotating member B fixed to the output shaft 8 is slowly rotated. When the output rotor 9 rotates, the coil spring 10 whose one end 10a is locked is wound around the output rotor 9 to store energy. The rotation of the output shaft 5a slowly rotates the one-way rotating member A connected thereto at a constant speed all the time.
When the tooth-chipped gear 6 rotates to a position where the tooth-chipped portion 6b corresponds to the planetary gear 12, the planetary gear 12 and the tooth portion 6e are rotated.
The meshing with the tooth portion 6d at the end of is released, and the planetary gear 12 is placed in a rotatable state. Then, the output rotating body 9 is rapidly driven to rotate in the direction of the solid line arrow due to the release of the stored force by the coil spring 10, and the forward / reverse rotating member B integrated with the output rotating body 9 is rapidly rotated in the reverse direction. When the output rotator 9 rotates in the direction of the solid arrow, the planetary gear 12 has the guide holes 2c and 2d.
Although it is moved in the direction of the arrow a in the inside, the toothless portion 6b passes through and again meshes with the tooth portion 6d at the end of the tooth portion and is moved in the direction of the arrow b to move the output rotor 9 in the direction of the broken arrow. The coil spring 10 is charged by being rotationally driven. Hereinafter, the forward / reverse rotation unit 7A periodically repeats normal rotation and reverse rotation as the tooth-chipped gear 6 rotates. In addition, other forward / reverse rotation units 8B and 7
It goes without saying that C also repeats forward and reverse rotations in association with the rotation of the toothless gear 6. In the case where the tooth-chipped gear 6 is formed with only one tooth-chipped portion 6b as in the illustrated example, the three forward / reverse rotation portions 7 are rapidly and only once when the tooth-chipped gear 6 rotates once. Although it rotates in the reverse direction, the cycle of the forward and reverse rotation can be shortened by forming a plurality of toothless portions 6b. In this case, it goes without saying that the gear ratio between the planetary gear 12 and the output rotor 9 is appropriately set to a numerical value so that the coil spring 10 is sufficiently charged while meshing with the tooth portion 6e.

As described above, in this embodiment, the coil spring 10 is accumulated and released in accordance with the rotation of the partly tooth-chipped gear 6 supported by the fixed rotor support member 2 to output the output rotation. The body 9 rotates in the forward and reverse directions. However, since the rotational speeds thereof are largely different between the forward rotation and the reverse rotation, the forward and reverse rotation member B moves in various ways. Furthermore, in addition to the sounding of the music box movement 42, the rotation of the one-way rotating member A fixed to the output shaft 5a is also added, so that an even more interesting toy can be obtained.

Next, referring to FIGS. 3 and 4, another embodiment of the present invention will be described. In the embodiment shown in FIG. 1, the planetary gear 12 is arranged as a one-way rotation transmitting means for selectively transmitting the rotation of the tooth-chipped gear 6 to the output rotor 9. The embodiment described below Is provided with a one-way rotation transmission means between the full bobbin upper shaft 4 and the toothless gear.

That is, in the forward / reverse rotation device 20, the case 21 that houses the music box movement 42 includes a lower case 21a and an upper case 21b fitted and fixed to the lower case 21a. A main plate 23 is fastened together and fixed between the upper case and the lower case. In the space between the upper case 21b and the main plate 23, a toothless gear 24 having a toothed portion 24a having a toothless portion 24e is disposed, and is freely rotatable at the end of the whole winding upper shaft 4. Supported by. At one end of the tooth portion 24a, a tooth portion 24d that is made elastic by providing a slit 24c is formed. Around the toothless gear 24, three forward / reverse rotating parts 30A, 30B,
30C is provided. Since all the forward and reverse rotating parts have the same structure, only one is shown in FIG. The tooth portion 24a of the toothless gear 24 is constantly meshed with the tooth portion 25a of the forward / reverse rotation gear 25 that forms a part of the output rotor. The shaft portion 25b of the forward and reverse rotation gear is rotatably supported by the main plate 23, and the shaft portion has a coil spring as a power accumulating means.
There are 26 wound around. One end 26 of the coil spring 26
The a is locked to the forward / reverse gear 25, and the other end 26b is locked to the hole 23a formed in the main plate. The upper case 21b rotatably supports a rotating body 28 that supports a forward / reverse rotating member (see reference numeral B in FIG. 2). The connecting member 27 is fixed to the lower end of the shaft 28a of the rotating body 28 inserted through the bearing hole 21c formed in the upper case by an appropriate means such as screwing or bonding. The connecting member 27 engages with an engaging portion 25c formed on the end face of the forward / reverse rotation gear 25 and is integrated in the rotational direction. In this case, the output rotating body is composed of the forward / reverse rotation gear 25, the rotating body 28, and the connecting member 27. Therefore, the rotating body support member that rotatably supports the upper case 21b
And the base plate 23. FIG. 3 is shown except for the upper case 21b. At the lower end of the toothless gear 24,
A saw-toothed tooth portion 24b is formed in an annular shape around the whole Maimaki upper shaft 4 and is movable integrally with the whole Maimaki upper shaft 4 in the rotational direction and in the axial direction. The tooth portion 30a of the ratchet wheel 30 inserted in the is engaged. A spring 31 is interposed between the main plate 23 and the ratchet wheel 30 to give a movement habit of pushing the ratchet wheel 30 against the toothless gear 24. The tooth portion 24b and the ratchet wheel 30 constitute a one-way rotation transmission means, and when the whole dance as a drive source is wound up, the rotation of the whole dance winding shaft 4 is not transmitted to the toothless gear 24, Rotation of the whole bobbin upper shaft 4 when releasing
It operates in the direction to transmit to.

Now, in FIG. 3, when the full-motion winding upper shaft 4 is rotated counterclockwise to wind up the full-scale dance (not shown), the toothless gear 24
Does not rotate due to slip between the tooth portion 24b and the ratchet wheel 30. At this time, the forward / reverse rotation units 30A, 30B, 30
In each of the coil springs 26 of C, in the direction of rotation in the direction of the arrow b, the closer the position is to the toothless portion 24c (end portion 24d), the greater the stored force thereof. That is, in the state shown in FIG. 3, the forward / reverse rotation parts 30B, 30
The power is large in the order of A and 30C. When the whole dance is wound up and the releasing force thereof causes the whole dance winding shaft 4 to rotate in the direction of arrow b, the tooth-chipped gear 24 is rotationally driven in the same direction via the ratchet wheel 31. When the tooth-chipped gear 24 rotates, the forward / reverse rotation gear 25 meshing with the tooth-missing gear 24 is rotated in the direction of the solid arrow to wind up the coil spring 26 to store energy. At this time, the rotating body 28 slowly rotates in the direction of the solid arrow to rotate the forward / reverse rotating member B (see FIG. 2). Then, when the toothless gear 24 rotates to a position where the toothless portion 24e corresponds to the gear 25 of the forward / reverse rotation portion 30B, the meshing between the forward / reverse gear 25 and the toothless gear 24 is released. The gear 25 and the rotating body 28 are rotated at a high speed in the direction of the broken arrow by releasing the stored force of the coil spring 26. When the toothless portion 24e passes through the gear 25 of the forward / reverse rotation portion 30B, the tooth portion 25a of this gear again meshes with the tooth portion 24a of the toothless gear 24 and is rotated in the direction of the solid line arrow to rotate the coil spring 26. To charge. Hereinafter, the toothless portion 24e of the toothless gear 24 rotates in the order of the forward / reverse rotation portion 30A and the forward / reverse rotation portion 30C while releasing the meshing with the respective forward / reverse rotation gears 25. The forward / reverse gear 25 stores the coil spring 26 until it corresponds to the toothless portion 24e. Also in this example,
When the tooth-chipped gear 24 rotates, the music box movement 42
Is performed, and when the release of all dances is completed, the ringing and the rotation of the partly tooth-missing gear are completed. Needless to say, a one-way rotating member (see reference numeral A in FIG. 1) that rotates integrally with the rotation of the tooth-chipped gear 24 may be provided.

Although the illustrated embodiment shows the entire movement of the music box movement as the drive source, the present invention does not need to include the music box movement in particular. Therefore, it is a matter of course that the toothless gear may be rotationally driven by using the whole body or motor provided in the main body of the toy as a drive source, or by a hand-turning type using a handle or the like. Furthermore, although three forward / reverse rotating parts are shown in the illustrated embodiment, the number of the rotating parts installed is not limited to this.

Further, in each of the illustrated embodiments, the output tooth is rotated in the forward and reverse directions by rotating the toothless gears 6 and 24 by the drive source. Member 2
(Case 20) may be rotated. In this case, the output rotor 9, 25 (28) rotates forward and backward while planetary movement is performed by using the toothless gear as the sun gear.

(Effects of the Invention) As described above, according to the present invention, the output rotor is slowly rotated in conjunction with the rotation of the tooth-missing gear to store energy in the energy storing means, and the tooth-missing portion and the output rotor are separated from each other. When responding, the output rotary body is reversed at high speed by releasing the energy storage force of the energy storage means,
Motions with different speeds can be obtained by one driving source, which increases the fun of the toy.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention, and FIG.
FIG. 3 is a vertical sectional view of a main part of the same, FIG. 3 is a partial sectional plan view showing another embodiment of the present invention, and FIG. 2, 21 ...... Rotor support member, 6, 24 ...... missing tooth gear, 6b, 24e ...... missing tooth part, 6e, 24a ...... tooth part, 9, 25, 28 ... output rotor, 10, 26 ... means of storing energy.

Claims (1)

[Scope of utility model registration request] 1. A toothless portion of the tooth-chipped gear, which rotates forward when the tooth-chipped gear having a tooth portion partially cut out and directly or indirectly meshes with the tooth portion of the tooth-chipped gear. When the output rotor is rotated forward by positively rotating the output rotor by directly or indirectly opening the engagement with the toothless gear, the output rotor is stored with energy when the output rotor rotates forward. Energy storage means for releasing the energy storage force to reversely rotate the output rotor when it becomes rotatable corresponding to the toothless portion of the tooth gear, and a rotor support for rotatably supporting the output rotor. A forward / reverse rotation device comprising a member, and a drive source that relatively rotationally drives the toothless gear and the rotating body support member.