JP2000024328A - Rotary playing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a force required for rotation to an extent that allows babies and children to make a rotation simply. SOLUTION: A support shaft 2 is integrally mounted at the center of a rotary base 3 on which people ride and arranged to protrude downward through a bottom surface of the rotary base 3. A lower end of the support shaft 2 is placed on a bearing base 8 so as to contact the bearing base 8 at a point on the axis thereof and an engaging body 11 covering the other end part thereof is mounted on either the support shaft 2 or the bearing base 8. A plurality of wheels 7 free to turn loosely are arranged at an interval on the bottom surface of the rotary base 3 along the periphery thereof. A circular rail 12 is arranged on the track of the movement made by the wheels 7 and, when the rotary base 3 is horizontal in attitude, all of the plurality of wheels 7 float over the rail 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary play apparatus installed in a park, an amusement park, a nursery school, a kindergarten, etc., so that a plurality of infants and children can play with them.

[0002]

2. Description of the Related Art A conventional rotary play apparatus is provided with a support shaft 2 at the center of a turntable 3 as shown in a side sectional view of FIG.
The lower end of the support shaft 2 penetrates through the turntable 3 and protrudes downward. A cylindrical bearing base 8 is provided on the foundation 1, and the support shaft 2 is rotatably supported at the center thereof via a bearing 16. A plurality of pulleys 7 are mounted on the bottom surface of the base 3 along the outer edge at intervals, and each of the plurality of pulleys 7 runs on an annular rail 12 provided on the foundation 1. On the upper surface of the turntable 3, a handrail 4 and a chair 5 are provided along the outer periphery, and the handrail 4 is pushed from the outside, or the foundation 1 is put on the turntable 3 with one foot and turned. . In this case, the turntable 3 is supported by the support shaft 2 and a plurality of pulleys 7 on the outer circumference, and a considerable force is required to rotate the support shaft 2 and the plurality of pulleys 7, and one or two infants rotate very much. I couldn't do it, and I needed the power of adults and the power of many infants.

[0003]

According to the present invention, there is provided a rotary game machine in which the force required for this rotation is reduced to a range where even a child or child can easily rotate.

[0004]

According to the present invention, a support shaft is integrally mounted on the center of a turntable on which a person rides, and the support shaft is projected downward from the bottom surface of the turntable to lower the lower end of the support shaft. Placed on a bearing stand, these spindles and the bearing stand are brought into point contact on the axis thereof, and an engaging body covering the other end is attached to one of the spindle and the bearing stand. A plurality of free-moving pulleys are arranged at intervals along the periphery of the pulley, and an annular rail is provided on the locus of movement of the pulleys. It is rising from the rail.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall perspective view showing a schematic configuration of a rotary game machine, and FIG. 2 is a side sectional view thereof. As shown in FIG. 2, a bearing base 8 is provided on a foundation 1, and a support shaft 2 is formed vertically at the center of a disk-shaped turntable 3. 8 to support. Further, a plurality of pulleys 7 are concentrically arranged on the lower surface of the turntable 3 along the outer edge, and a ring-shaped rail 12 is arranged on the foundation 1 so as to face the plurality of pulleys 7. It is rotatably supported around the table 8. A handrail 4a is provided in the shape of a ring at a position near the support shaft 2 on the turntable 3 so that infants and children can safely grip them. At the same time, a plurality of arc-shaped handrails 4b are arranged concentrically along the outer edge of the turntable 3 at intervals, and a plurality of chairs 5 are formed inside or outside the arc-shaped handrails 4b and fixed. Further, a plurality of handles 6 are formed on the arc-shaped handrail 4 b, and the handles 6 are arranged so that the tips thereof are radial with respect to the support shaft 2. A sunshade umbrella 14 is provided at the upper end of the support shaft 2.

As shown in detail in FIG. 2, the bearing stand 8 has a steel ball 9 for supporting the support shaft 2, a support seat 10 projecting upward at the center to support the steel ball 9, and a steel ball 9 on its outer periphery. Is integrally formed with a cylindrical engaging body 11 into which the steel ball 9 is inserted.
Is inserted on the support seat 10, the support shaft 2 is vertically inserted from above, and the steel ball 9 is sandwiched between the support shaft 2 and the support seat 10,
It is rotatably supported by making point contact with the steel ball 9 on the axis of the support shaft 2. Further, when the turntable 3 is in the horizontal position, fixed gaps 13a, 13a are provided between the rail 12 and the plurality of pulleys 7.
b is provided. The cylindrical engaging body 11 inserts the tip of the support shaft 2 at the front end thereof with the steel ball 9 interposed therebetween, supports the horizontal force applied to the turntable 3 by the engaging body 11, and moves the support shaft 2 from the bearing base 8. So that it does not come off. In FIG. 2, the engaging body 11 is formed outside the bearing base 8, but as shown in FIG.
A cylindrical engaging body 11 is integrally provided at a lower end of the support shaft 2. The engaging body 11 of the support shaft 2 is covered with the steel ball 9 placed on the bearing base 8, and the support seat 10 of the bearing base 8 is inserted into the lower end. Even with the same effect.

FIG. 3 shows a case in which an infant or a child leans on one side. The turntable 3 is tilted in that direction depending on the weight of the infant or the child, and a gap 13b between the pulley 7 and the rail 12 at this position is formed. Narrow and contact to support the load. At this time, the spindle 2 slides and tilts on the steel ball 9 placed at the lower end thereof, and is supported by the steel ball 9. Although a load is applied to the steel ball 9 in the direction along the support shaft 2, a horizontal component of the force applied to the steel ball 9 is supported by the engagement body 11 to prevent the steel ball 9 from protruding in the horizontal direction, and Is supported by the support seat 10.

FIG. 4 shows another embodiment of the present invention, in which a cylindrical engaging body 11 is formed integrally with the lower end of a support shaft 2, and a steel ball 9 is provided.
Is mounted on the bearing stand 8, and the engaging body 11 of the support shaft 2 is put thereon. In this case, the engagement body 11 hits the bearing base 8 due to the inclination of the turntable 3 and hinders rotation.
Is limited to a length that covers almost half of In this state, if a horizontal force is applied to the rotary table 3 simultaneously with the vertical vibration, the steel balls 9 may fall off, and as shown in FIG. A projection 15 is provided to support the horizontal force applied to the engagement body 11 and the steel ball 9
To prevent falling off.

With the above configuration, the adult can push the handle 6 along the outer edge of the turntable 3 so that the turntable 3 can be easily rotated with the infant or child placed on the turntable 3. When infants and children are scattered on the turntable 3, the turntable 3 is balanced by the principle of leverage, and the load of the child is concentrated on the support shaft 2 and the steel ball 9, so that the load is not applied to the pulley 7, Can be easily rotated. Also, even if several children or infants lean on one side of the turntable 3, the turntable 3 tilts and tilts in that direction, and the support shaft 2 also moves on the steel ball 9 and tilts and tilts. Of the pulley 7 contacts the rail 12 and supports the turntable 3 at two points of the pulley 7 in the direction of inclination with the contact point between the support shaft 2 and the steel ball 9, and the turntable 3 has a rotational resistance of only one of the pulleys 7. And the turntable 3 can be easily rotated by only infants or children. Similarly, when a child sitting on the outer chair 5 or a child standing on the outer edge of the turntable 3 puts out one foot from the turntable 3 and kicks the surface of the foundation 1 in one direction, the turntable 3 is also smoothly moved. Can be rotated.

[0010]

According to the present invention, the support shaft is erected perpendicularly to the center of the turntable, the lower end of the support shaft is supported by steel balls, and a plurality of pulleys are arranged along the outer edge of the lower surface of the turntable. A ring-shaped rail is provided on the foundation facing the pulley, and it is held horizontally with a certain distance between the pulley and the rail.When an infant or child is placed on the turntable, the support shaft and the infant or By supporting and rotating at two points of the pulley in the direction in which the child is mounted, the load required to rotate all the pulleys can be reduced, and even an infant or child can easily rotate and play.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a schematic configuration of a rotary play facility.

FIG. 2 is a sectional side view of the same.

FIG. 3 is a side cross-sectional view showing a case where an infant or child is leaning on one side.

FIG. 4 is another embodiment of the present invention.

FIG. 5 is a side sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foundation 2 Support shaft 3 Turntable 4a Handrail 4b Handrail 5 Chair 6 Handle 7 Pulley 8 Bearing stand 9 Steel ball 10 Support seat 11 Engagement body 12 Rail 13a Gap 13b Gap 14 Umbrella 15 Cylindrical projection 16 Bearing

Claims (1)

[Claims] 1. A support shaft is attached integrally to a center of a turntable on which a person rides, and the support shaft is protruded downward from a bottom surface of the turntable. The lower end of the support shaft is placed on a bearing stand, The support shaft and the bearing base are brought into point contact with each other on the axis thereof, and an engaging body covering the other end is attached to one of the support shaft and the bearing base. A plurality of idler pulleys are arranged at intervals, and an annular rail is provided on the locus of movement of the pulley,
The rotary play apparatus, wherein when the turntable is in a horizontal position, all of the plurality of pulleys are floating above the rails.