JPH0647511Y2 - Drive for merry-go-round - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to improvement of a drive device for a merry-go-round.

[Prior art]

Conventionally, as a merry-go-round equipped with an operating shaft in which a decoration is hung and rotated and a switch is switched by vertical movement, there is a Japanese Utility Model Laid-Open Publication No. 54-22880 and a Japanese Utility Model Publication 55-15939.
There is No. 1 bulletin, etc.

In the former case, the upper end of the rotating operating shaft contacts the contact piece of the switch, and the operating shaft has two rising positions, so that the switch is switched in the on / off order. Moreover, the music cannot be switched. In the former proposal, since the rotating operation shaft is in contact with the contact piece, the operation is particularly unstable over time. Further, there is a drawback that the height of the operating shaft changes depending on whether it is on or off.

In the latter case, the upper end of the operating shaft hits a spring that ratchets the pattern plate, and the pattern plate is ratcheted by vertical movement of the operating shaft to switch the switch on and off and switch the song. In the latter proposal, the operation is unstable because the upper end of the operating shaft contacts the ratchet feed spring. Further, the ratchet and the operation shaft are separated from each other and are located at different positions, so that there is a drawback that the assemblability is poor and a space is required.

[Purpose of device]

In view of the above-mentioned drawbacks, the present invention integrates a slip mechanism, a pattern serving as a drive switch, and a means for rotating a contact piece support member by a predetermined angle into a unit on the operation shaft and makes the unit compact, thereby rotating the operation shaft and the contact piece. It is to propose a drive device for a merry-go-round, which stabilizes the operation by eliminating the direct contact with the vehicle.

[Constitution of device]

The present invention is a merry-go-round that switches the drive of an electronic sounding device by moving the operating shaft up and down, a motor that rotates the operating shaft through a slip mechanism, a spring that urges the operating shaft to rise, and a raising of the operating shaft. The restricting member, the contact piece support body slidably fitted to the operating shaft, the contact piece provided on the support body, and the contact piece provided on the fixed member are brought into contact with and separated from each other by axial displacement of the contact piece to form a drive switch. Pattern formed on the circuit board, a spring for urging the contact piece support toward the pattern side, means for rotating the contact piece support by a predetermined angle by vertical movement of the operating shaft, and a battery and a motor connected to the pattern. It is equipped with and.

〔Example〕

Hereinafter, the present invention will be described with reference to an illustrated embodiment. The drive unit of the merry-go-round is unitized and made compact by incorporating it in a fixed member 2 fixed by a screw 10 in a curved ball case 1 in FIGS. 1 to 3.

1 to 5, the through hole 2b of the lower bent portion 2a of the fixing member 2 in FIGS.
The hollow shaft portion 3a of the gear holder 3 is rotatably fitted therein. The operation shaft 11 is fitted in the shaft hole 3b of the shaft portion 3a so as to be vertically movable and rotatable. The E-ring fitted to the operation shaft 11 in the gear holder 3 constitutes the operation shaft rise restricting member 15. Further, as shown in FIG. 6, the hollow corner portion 4a of the substrate holder 4 is fitted into the notch portion 2d of the upper bent portion 2c of the fixing member 2 and fixed by caulking. The operation shaft 11 is vertically movably and rotatably fitted in the shaft hole 4b of the hollow corner portion 4a. An E-ring 12 is fitted on the operating shaft 11 inside the central cylindrical portion 4c of the substrate holder 4.

A hooked tongue piece 3c is formed on the upper cylindrical opening edge of the gear holder 3 by slitting a plurality of slits. The hooked tongue piece 3c is inserted into an arcuate through hole 5a formed in the gear 5 as shown in FIG. 4, and the gear 5 is prevented from coming off. On the outer periphery of the operating shaft 11 in the gear holder 3, a spring 13 for biasing the operating shaft, a washer or push nut 14, and an ascending restricting member 15 composed of an E-ring.
Is fitted to form a slip mechanism. A worm 17 fixed to the output shaft of the motor 16 is meshed with the gear 5. The motor 16 is caulked and fixed to the two bent portions 2e and 2f of the fixing member 2.

A collar portion 4d is integrally formed on the outer periphery of the central cylindrical portion 4c of the substrate holder 4 and a plurality of boss portions 4e are formed on the lower surface, and the substrate 6 is fixed with screws 18. A plurality of patterns 6a to 6d are formed on the lower surface of the substrate 6 as shown in FIGS. A contact piece support 7 is slidably fitted on the outer circumference of the operation shaft 11 on the lower side of the substrate 6, and the contact piece support 7 is formed into a pattern 6a to 6d by a spring 19 fitted on the outer circumference of the operation shaft 11. Biased to the side. The spring 19 is mounted on the boss portion of the gear 5 via a washer 20. The contact piece support 7 has an S-shaped contact piece 8
Are overlapped with each other, and both ends 8a and 8b are inserted into the through holes 7a in the radial direction of the contact piece support body 7 and bent so as to project toward the pattern side.

The pattern is, for example, as shown in FIG.
Is connected to the pattern 6b, and the 8th pattern 6b is provided on the substrate 6.
The A-side of the electronic sounding device 21 in the figure is connected, the B-side of the electronic sounding device is connected to the pattern 6c, and the pattern 6d is in the off position. The electronic sounding device 21 has a battery 22 and a speaker 23.
Are connected.

As shown in FIG. 1, the ratchet wheel 9 and the boss portion 7b of the contact piece support body 7 are inserted into the inner periphery of the central cylindrical portion 4c of the substrate holder 4 so that the operating shaft
A means for rotating the contact piece support 7 by a predetermined angle by the vertical movement of 11 is configured.

As shown in FIGS. 9 and 10, several protrusions 4g are formed in the groove 4f on the inner circumference of the central cylindrical portion 4c, and an inclined claw 4h is formed at the lower end of the protrusion 4g. The projection 9a and the groove 9b of the ratchet wheel 9 shown in FIGS. 11 and 12 are fitted in the groove 4f and the projection 4g. Mountain-shaped claws 9c and 9d are formed at the lower end of the protrusion 9a.

The ratchet 9 has an operation shaft 11 fitted in a through hole 9e at the center thereof, and has an E-shaped upper surface.
Ring 12 is facing.

On the upper surface of the contact piece support body 7, as shown in FIGS. 13 and 14, several protrusions 7c are formed on the outer periphery of the boss portion 7b, and an inclined claw 7d is formed on the upper end of the protrusion 7c.

A hanging metal fitting 24 is attached to the upper side of the curved ball case 1 as shown in FIG. An S-shaped hook fitting 25 is attached to the lower end of the operation shaft 11 and a decoration 26 is hung.
The speaker 23 is fixed in the curved case 1.

The operation of the drive device will be described by the means for rotating the contact piece support 7 by a predetermined angle by the vertical movement of the operation shaft 11. The claw wheel 9 and the contact piece support 7 of FIG. 16 (a) are as shown in FIG. The spring 19 is in the raised position and the operating shaft 11 is also in the spring 13 in the raised position, so that the lift restricting member 15 is in contact with the gear 5 in the gear holder 3.

Next, when the operating shaft 11 is pulled down against the spring 13, the E ring 12 contacts the upper surface of the ratchet wheel 9, and the ratchet wheel 9 is pulled down. By this operation, as shown in Fig. 16 (b), the claw 9d is the spring and the claw 7d is the spring.
Since it is pushed down against 19 and a rotational force is generated between the two claws, the claw 7d moves to the claw 4h of the substrate holder 4, and the tip of the claw 7d is a protrusion.
Applied to the side of 9a.

Next, when the pulling down of the operating shaft 11 is released, the ratchet wheel 9 is retracted and raised by the spring 13, so that the pawl 7d hits the pawl 4h and a rotational component force is generated. When the ratchet wheel 9 is lifted, the claw 7d is disengaged from the claw 4h, so that it hits the claw 9d and moves to the groove next to the original groove, and the state shown in FIG. It is rotated angularly.

By this predetermined angle rotation, the contact piece 8 is moved from the off position of the pattern 6d to the patterns 6a and 6b in FIG. 7, and the motor 16 and the electronic sounding device 21 are energized to the A side of the curve.

When the motor 16 is rotated, the gear 5 is rotated and the gear holder 3 is rotated. By this rotation, the operation shaft 11 is rotated via the slip mechanism of the spring 13.

Next, when the operation shaft 11 is pulled down, the contact piece support 7 is rotated by a predetermined angle as in the above operation, and the motor 16 and the electronic sounding device are operated.
The B side of 21 is energized.

When the operating shaft 11 is further pulled down, the contact piece 8 is moved to the pattern 6d at the off position and the motor 16 and the electronic sounding are stopped.

When the drive device of the merry-go-round is constructed as described above, the gear holder 3, the slip mechanism of the spring 13, the contact piece support 7, and the central cylinder portion 4c of the substrate holder 4 on the operation shaft 11 are provided. The means for rotating the contact piece support 7 including the claw 4h, the claw 9c of the ratchet wheel 9 and the claw 7d of the contact piece support 7 by a predetermined angle is integrated and unitized, so that it is made compact. Further, the operating shaft 11 and the contact piece 8 do not directly come into contact with each other, and when the contact piece and the pattern are switched, the contact piece support 7 is completely disengaged by being lowered and raised. That is, the predetermined angle rotation starts at the moment when the contact piece separates from the pattern, and the predetermined angle rotation ends at the moment of contact. Therefore, the operation is reliable and stable.

Further, the operation shaft 11 is connected to the motor 16 via the slip mechanism of the spring 13.
Since the motor is rotated by, a large starting torque is not applied to the motor at the time of starting, so the starting current can be reduced and the battery 22
The decoration 26 starts rotating slowly while reducing the consumption of.

A clearance is provided between the ratchet wheel 9 and the E-ring 12, and the operation of the switch starts when the operation shaft 11 is pulled down by a predetermined stroke or more due to this clearance.

Further, the slip mechanism prevents the gear 5 and the motor 16 from rotating even when the ornament 26 is rotated from the outside by a hand or the like.

In the above description, the lift restricting member 15 of the operating shaft 11 is referred to as the gear holder 3
Although the inner E-ring is used as the inner ring, the operation shaft 11 may be lifted and regulated by the E-ring 12 contacting the ceiling in the central cylindrical portion 4c of the substrate holder 4.

In the above description, the pattern is provided on the substrate 6 attached to the fixed member 2 via the substrate holder 4, and the contact piece 8 is provided on the movable side contact piece support 7. However, the pattern is provided on the contact piece support 7. A contact piece may be provided on the fixed member 2 side.

[Effect of device]

Since the present invention is configured as described above, the drive unit is unitized and made compact, and the work of assembling the drive unit in the case becomes easy. Further, since the operating shaft does not directly contact the contact piece, the operation is reliable and stable. Further, since the operation shaft is rotated through the slip mechanism, it is possible to provide a merry-go-round drive device that has excellent practical effects such as reduced battery consumption.

[Brief description of drawings]

An embodiment of the present invention is shown in the drawings, and FIG. 1 is a sectional front view of a main part of a merry-go-round drive unit and a curved ball case.
FIG. 3 is a front view of the drive unit, FIG. 3 is a right side view of the drive unit,
FIG. 4 is an exploded perspective view of the drive unit, FIG. 5 is a plan view of a lower main part of the drive unit, FIG. 6 is a plan view of an upper main part of the drive unit, and FIG. 7 is a plan view showing patterns and contact pieces. FIG. 8 is a plan view of the electronic sounding device, FIGS. 9 to 14 show means for rotating the contact piece support by a predetermined angle by vertical movement of the operating shaft, and FIG. 9 is a central cylindrical portion of the substrate holder. Sectional side view of Fig. 10, Fig. 10 is the same bottom view,
11 is a side view of the ratchet wheel, FIG. 12 is a bottom view of the same, FIG. 13 is a plan view of the contact piece support, FIG. 14 is the same side view, and FIG. 15 is a partial cross-sectional side view of the case. FIG. 16 is a diagram for explaining the operation of the above means. 2 ... Fixing member, 4 ... Substrate holder, 6a, 6d ... Pattern,
7 ... Contact support, 11 ... Operation shaft, 15 ... Ascending restriction member, 13 ...
Spring, 16 ... motor, 22 ... battery.

Claims (2)

[Scope of utility model registration request] 1. In a merry-go-round that switches the drive of an electronic sounding device by moving the operating shaft up and down, a motor for rotating the operating shaft via a slip mechanism, a spring for biasing the operating shaft upward, and an operating shaft. Ascending / descending member, contact piece support slidably fitted to the operating shaft, contact piece provided on the support body, and contact piece provided on the fixed member by axial displacement of the contact piece to form a drive switch, which serves as an electronic sound generator. A pattern formed on the circuit board of the device, a spring for urging the contact piece support toward the pattern side, a means for rotating the contact piece support by a predetermined angle by vertical movement of the operating shaft, a battery connected to the pattern, and A drive for a merry-go-round with a motor. 2. A drive device for a merry-go-round according to claim 1, wherein a contact piece is formed on the fixing member and a pattern is formed on the support.