JP2000051536A - Braking device for rotary game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary game machine provided with a braking mechanism capable of being uniformly operated when its revolving speed exceed the fixed speed so that a baby and a child can get on a disk 1 for game and safely play. SOLUTION: Crescent-shaped brake pieces 33 are symmetrically arranged at a position facing the brake drum 28 of a braking disk 29, the brake pieces 33 are held freely movably to the left and right and cams 34a and 34b are respectively arranged at both ends of the brake pieces 33. Turning is respectively performed through operation rods 35 and 35b by a connection rod 26, the width of the left and right brake pieces 33 is enlarged, they are brought into press contact with the brake drum and braking is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a park, an amusement park,
The present invention relates to a braking device for a rotary game machine, which is installed in a nursery school, a kindergarten, and the like, and in which a plurality of children and children can play.

[0002]

2. Description of the Related Art Conventionally, as a braking device for a rotary game machine,
The applicant of the present invention has already applied for a utility model registration, and it is assumed that the utility model registration has already been made.
There is what was described in the issue. In this product, a weight that receives centrifugal force due to the rotation of the brake shaft is movably mounted in the radial direction of rotation on the brake shaft that is supported on the center axis of the disk via a speed increasing mechanism, and the weight is connected to the brake mechanism of the brake shaft. The rotation of the brake shaft is braked by the centrifugal force of the weight by being connected via a rod. In this case, although it depends on the speed increase ratio of the speed increasing mechanism, the braking force is weak to stop the braking axis only by the centrifugal force of the weight, the braking is gradually applied, it takes time to stop, and the disk Depending on the direction of rotation, braking is biased, and there is a problem in its responsiveness in an emergency such as an accident.

[0003]

SUMMARY OF THE INVENTION In the present invention, braking of a rotary amusement machine having a braking mechanism that operates evenly irrespective of the direction of rotation of the disc by smoothing the movement of the weight to accelerate the generation of centrifugal force. Provide equipment.

[0004]

According to the present invention, a crescent-shaped brake piece is symmetrically disposed at a position opposite to a brake cylinder of a brake disk, and the brake piece is held movably right and left. Cams were arranged at both ends of the brake pieces, respectively, and the connecting rods were turned through the operating rods to widen the left and right brake pieces, and pressed against the brake cylinder to perform braking.

[0005]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic overall perspective view of the present invention, FIG. 2 is a side view of a braking device, and a plan view of a main part of the present invention. Reference numeral 1 denotes a disk, and a central axis 2 is vertically provided at the center of the disk.
The lower end protrudes below the disk 1 through the disk 1. A plurality of pulleys 3 are concentrically arranged on the lower surface of the disk 1 along the outer edge, and a ring-shaped rail 4 is arranged on the foundation so as to face the plurality of pulleys 3. Handrails 5 to be gripped by infants and children are arranged on the disk 1 in a ring shape at a position close to the center axis 2 and in an arc shape at intervals along the outer edge of the disk 1. FIG.
As shown in FIG. 1, a center shaft bearing base 6 is provided on a foundation, the center shaft bearing base 6 has a support seat 8 protruding upward at the center and supporting a steel ball 7, and a steel supporting the center shaft 2 of the disk 1. A ball 7 and a cylindrical engaging body 9 for inserting the steel ball 7 on its outer periphery are provided. The steel ball 7 is inserted into the engaging body 9 and placed on the support seat 8, and the central shaft 2 is vertically inserted from above. Then, a steel ball 7 is sandwiched between the center shaft 2 and the support seat 8, and the disk 1 is rotatably supported by making point contact with the steel ball 7 on the axis of the center shaft 2.

As shown in FIG. 2, the braking device has a large sprocket 10 mounted horizontally on the center shaft 2 below the disk 1.
Further, the brake shaft 11 is provided below the disk 1 in parallel with the central axis 2.
And a bearing stand 12 provided on the basis of the lower end of the braking shaft 11.
And is rotatably supported by the bearing 13. A small sprocket 14 is mounted on the brake shaft 11 in parallel with the large sprocket 10 of the center shaft 2. The large sprocket 10 of the central shaft 2 and the small sprocket 14 of the braking shaft 11 are connected by a chain 15, and these constitute a speed increasing mechanism of the braking shaft 11. That is, by reducing the diameter of the small sprocket 14 to the diameter of the large sprocket 10 at a fixed ratio, the rotation speed of the braking shaft 11 is set to be several times the rotation speed of the center shaft 2. Furthermore, the rotating plate 16 is attached to the braking shaft 11.
Are attached together. The rotary plate 16 is formed by integrally forming a weight mounting plate portion 17 and a spring biasing plate portion 19 that urges a biasing spring 18 by hooking them at predetermined positions of a rectangular plate. Further, a brake mechanism 27 is provided below the rotating plate 16. The weight mounting plate portion 17 is formed such that one side is bent in an inverted L-shaped cross section along the length direction to form a bent portion 20, and as shown in FIG. A sliding groove 21 having a predetermined length is formed. The guide rail 30 is detachably held on the opposite side of the bent portion 20 in parallel with the weight mounting plate portion 17 at an interval. The weight 22 is formed in a columnar shape,
At the center of the upper surface, a suspending portion 23 projects upward. The suspending portion 23 is provided with a suspending hole 24 crossing the center of the suspending portion 23. Hang it slidably. Further, a plate-like stopper 25 is provided on one side of the upper surface of the weight 22 so as to protrude at right angles to the direction of the suspension hole 24.
The movement range of the weight 22 is regulated by inserting the weight 22 into the sliding groove 21. One end of an arm-shaped connecting rod 26 is rotatably mounted on the side of the weight 22 opposite to the weight mounting plate 17. The other end of the connecting rod 26 is connected to the spring urging plate 19 via the urging spring 18.
Attach to

[0007] As shown in Fig. 5, the brake mechanism 27 is an inwardly expanding brake and has a structure obtained by adding a slight improvement to a conventionally known brake. A braking disk 29 is placed on a cylindrical brake cylinder 28.
The brake disk 29 is fixed to the brake shaft 11, the brake cylinder 28 is fixed to the bearing base 12, and the brake shaft 11 is rotatably inserted into a through hole 31 provided at the center thereof.
The braking disc 29 includes a pair of left and right brake pieces 33 integrally attached with a brake lining 32, cams 34a and 34b, two tension springs 36, an operating rod 35, an operating rod 35b, a connecting wire 37, and the like. The brake linings 32 of the pair of brake pieces 33 are respectively mounted at positions viewed from the inner periphery of the brake cylinder 28, and cams 34 a and 34 b are arranged at both ends of the pair of brake pieces 33. Then, one end of the operating rod 35 is connected to the cam 34a, and
Is connected to one end of the operating rod 35b. The other end of the operating rod 35 is rotatably attached to the center of the connecting rod 26. Further, one end of the connecting wire 37 is fixed to a predetermined position of the operating rod 35, and the other end of the connecting wire 37 is fixed to a predetermined position of the operating rod 35b. With this configuration, when the operating rod 35 moves in the direction of the arrow, the cam 34a rotates, and at the same time, the operating rod 35b moves in the direction of the arrow via the connecting wire 37 to rotate the cam 34b. The auxiliary spring 40 smoothes the return of the operating rod 35b. The cams 34b and 34a rotate to push the pair of brake pieces 33 outwardly against a pair of tension springs 36, and press the brake linings 32 of the pair of brake pieces 33 against the inner periphery of the brake cylinder 28, thereby forming a braking disk. Suppress the rotation of 29 and brake. A notch groove 38 is provided in a central portion inside the pair of brake pieces 33, and a pin 39 erected on the braking disk 29 is inserted into the notch groove 38. The pins 39 cause the pair of brake pieces 33 to move in parallel along the pins 39 without shifting vertically, and hold the pair of brake pieces 33 so as not to hit against the inner periphery of the brake cylinder 28.

Next, the operation of the braking device having the above configuration will be described. When an infant or child rides on the disc 1 and pushes the disc 1 to start rotating, the disc 1 and the central shaft 2 start rotating, the sprocket large 10 fixed to the central shaft 2 rotates, and the chain 15 The braking shaft 11 is rotated at a speed several times faster via the small sprocket 14. The rotating plate 16 is also rotated by the rotation of the braking shaft 11, and when the rotating plate 16 has a predetermined angular velocity or more, the biasing spring 18
The centrifugal force causes the weight 22 to move along the guide rail 30 toward the outside of the rotary plate 16. With the movement of the weight 22, the connecting rod 26 is pulled and moved, and by the movement of the connecting rod 26, the operating rod 35 whose one end is rotatably fixed to the center of the connecting rod 26 is rotated.
The cam 34a attached to the tip of the fifth member 5 is rotated. Further, the operating rod 35b is rotated via the connecting wire 37, and the cam 34 is rotated.
Rotate b. By simultaneously rotating the cams 34a and 34b, the pair of brake pieces 33 are pushed outward against the two tension springs 36, respectively, and the brake lining 32 is pressed against the inner periphery of the brake cylinder 28, so that the rotating plate 16 Brakes the rotation. By simultaneously rotating the pair of cams 34a and 34b and pushing the pair of brake pieces 33 outward in parallel, respectively, the brake lining 32 is uniformly contacted with the inner periphery of the brake cylinder 28, thereby enhancing the braking effect. At the same time, it is possible to prevent damage to the brake lining 32 and the like due to a one-sided effect of the brake. When the rotation speed of the disc 1 decreases and the rotation of the brake shaft 11 becomes lower than a certain speed, the urging spring 18 is moved by the centrifugal force acting on the weight 22.
, The pair of brake pieces 33 are moved inward, the weight 22 is pulled inward and returned to the original position, and at the same time, the rotation of the cams 34a and 34b is returned to continue the rotation of the disk 1. . With this configuration, if the rotation speed of the disk 1 exceeds a certain range and rises too high, the braking device automatically brakes and decelerates the child 1 and the child or child riding the disk 1. Promote safety. Also, a pair of brake pieces 3
3 can be uniformly widened at both ends, so that the problem that the brake is hardly effective in the conventional clockwise or counterclockwise direction can be solved.

[0009]

As described above, according to the present invention, the center shaft is connected to the brake shaft via the speed increasing mechanism, and two centrifugal forces acting on the weight movably mounted on the brake shaft are used to control the two shafts. The cams rotate at the same time, and the two cams press the pair of left and right brake pieces against the inner circumference of the brake cylinder via the brake lining, so that the rotation of the brake shaft can be reliably braked, and the disc can be rotated clockwise or counterclockwise. Braking can be performed stably, and the infant or child can play on the disc safely without the disc rotating faster than necessary.

[Brief description of the drawings]

FIG. 1 is a schematic overall perspective view of the present invention.

FIG. 2 is a side view of the braking device of the present invention.

FIG. 3 is a plan view of a main part of the present invention.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a schematic view of an inward expansion type brake according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc 2 Center shaft 3 Pulley 4 Rail 5 Handrail 6 Center shaft bearing stand 7 Steel ball 8 Support seat 9 Engagement body 10 Large sprocket 11 Braking shaft 12 Bearing stand 13 Bearing 14 Small sprocket 15 Chain 16 Rotating plate 17 Weight mounting plate REFERENCE SIGNS LIST 18 urging spring 19 spring urging plate part 20 bent part 21 sliding groove 22 weight 23 hanging part 24 hanging hole 25 stopper 26 connecting rod 27 brake mechanism 28 brake cylinder 29 braking disk 30 guide rail 31 through hole 32 Brake lining 33 Brake piece 34a Cam a 34b Cam b 35 Operating rod 35b Operating rod b 36 Tension spring 37 Connection wire 38 Notch groove 39 Pin 40 Auxiliary spring

Claims (1)

[Claims] 1. A disk is supported on a foundation rotatably about a central axis as a fulcrum, and a bearing stand is laid on the foundation at a predetermined interval from the central axis. The brake cylinder is fixed concentrically, the bearing stand passes through the brake cylinder and supports the braking shaft, the center shaft is connected to the braking shaft via a speed increasing mechanism, and the braking shaft is connected to the rotating plate of the braking mechanism. The brake discs are fixed integrally, the weight that receives centrifugal force due to the rotation of the brake shaft is movably mounted on the rotating plate, the brake mechanism is mounted on the brake disk, and the weight is connected to the brake mechanism via the connecting rod. In the braking device of the rotating amusement machine connected, a crescent-shaped brake piece is disposed symmetrically at a position facing the brake cylinder of the braking disk, and the brake piece is held movably left and right, Cams at both ends of these brake pieces Location and, by widening the left and right brake shoes to pivot through respective actuating rod by the connecting rod, the braking device for a rotary game machine formed by pressing and braking the brake cylinder.