JPH01236075A - Shuttlecock automatic shooting device for badminton - Google Patents

Abstract

PURPOSE:To intermittently shoot a shuttlecock automatically and to execute an independent basic hitting practice by shooting off the shuttlecock in a discoid shuttle housing case by means of an air gun, dropping it towards a racket, and hitting up the shuttlecock in an obliquely upward direction by means of the racket. CONSTITUTION:When a pulley 5 having a lacking gear is slipped off from a ratchet gear 6, an arm 7 and a racket 10 are rapidly turned upward by a coil spring 8. By the operation of a control device 21 corresponding to the upward turn, an electromagnetic valve 11 is switched, and the air of an air piping 2 is jetted from an air gun 12. A shuttlecock 22 in a recessed part 14b is slipped away from the recessed part 14b and dropped. On the other hand, the racket 10 raised up to the vicinity of the air gun 12 is folded in making a hinge 9 into a supporting point when the arm 7 reaches a middle stopper 24, it is struck against the shuttlecock 22, and the shuttlecock 22 is allowed to fly. The racket 10 is struck against an upper stopper 25, thereafter, somewhat rocked downward by the dead weight, struck against a stopper piece 9, and stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a badminton service automation device that can automatically and continuously fire shuttlecocks in the badminton sport.

[Prior Art] Conventionally, a shuttlecock service in badminton sports has been performed by a plurality of people, including an opponent, and the receiving side repeatedly hits the shuttlecock back, thereby practicing basic badminton hitting.

However, since this method is based on the convenience and agreement of the other party, it has been impossible for a person to practice basic badminton hitting alone.

[Problems to be Solved by the Invention] Traditionally, basic hitting in badminton has been performed by multiple people facing each other, and it is impossible for one person to practice alone.

According to the present invention, the shuttlecock is automatically fired intermittently and the service of the shuttle is automatically performed, thereby making it possible to practice basic hitting alone.

Further, even in the case of a large number of people, by alternately receiving the shuttlecock's automatic service, a plurality of people can practice using the same device, and the amount of practice can be increased.

[Means to solve the problem] This will be explained with reference to the drawings.

The automatic shuttlecock launcher for badminton according to the present invention has a racket 10 attached to an arm 7 that rapidly turns upward, and when the racket 10 comes to a diagonal position between a horizontal position and a vertical position, a disk type shuttlecock is connected to the racket 10. A shuttlecock 22 in a case 14 is ejected by an air gun 12 and dropped toward a racket 10, and the racket 10 launches the shuttlecock 22 diagonally upward.

[Example] A bone frame 16 having a box-shaped exterior is placed on an apparatus stand 17 having casters 18 with stoppers.

A branch pipe 2a of an air pipe 2 coming out of an air compressor 1 placed on one corner of the equipment stand 17 is connected to an air motor 3 placed in the center of the equipment stand 17.

A horizontal upper shaft 6a and a lower shaft 5a are arranged on the air compressor 1, and are pivotally supported by a bone frame 16.

The ratchet gear 6 fitted and fixed to the upper shaft 6a is connected to the lower shaft 5a.
It is designed to mesh with a pulley 5 with an arcuate partially toothed gear which is fitted and fixed to the pulley 5.

An endless roller chain or heald 4 is hung between the pulley of the air motor 3 and the pulley 5 with partially toothed gears.

The base end of a racket attachment arm 7 is fixed to the upper shaft 6a, and a badminton racket 10 is attached to the tip of the arm 7.
The proximal end of is pivotally connected via a hinge 9.

A stopper piece 9a is provided at the joint between the arm 7 and the racket 10.
is provided to prevent the racket 10 from rotating further downward from the linear position with respect to the arm 7.

A lower stopper member 23 is attached to the frame 16 to prevent the arm 7 from falling further below a predetermined diagonally downward position (approximately 30 degrees from the horizontal).

A coil spring 8 is installed between the tip of the arm 7 and the upper part of the bone frame 16.
is tensioned to urge the arm 7 upward. The tensile force of the coil spring 8 is adjustable (
(not shown).

The upward rotation position of the arm 7 by the coil spring 8 is
Positioned by the middle stopper 24 attached to 6,
The arm 7 is configured to rotate only within a range of less than 180 degrees from diagonally downward through a horizontal position to diagonally upward.

A shuttle launch pad 15 is provided on the upper part of the bone frame 16 on the side opposite to the upper shaft 6a. An inclined shaft 14a, which is perpendicular to the upper shaft 6a (non-intersecting right angle) and inclined at approximately 45 degrees to the horizontal and vertical directions, is rotatably supported on the shuttle launch pad 15. The tilt angle of the tilt shaft 14a is adjustable (not shown). A low-speed rotary motor 13 is connected to the lower part of the tilting shaft 14a, and a center portion of a disk-shaped shuttle storage case 14 is fitted and fixed to the upper part of the tilting shaft 14a.

The disc type shuttle storage goose 14 is provided with a large number of coupling recesses 14b at positions corresponding to the rollers of the virtual roller ring, and a through hole 14C is provided at the bottom of the recess 14b. The air gun 12 is arranged so as to face the through hole 14c of the recess 14b at the lowest position, and is attached to the shuttle launch pad 15.

The nozzle of the air gun 12 is replaceable.

The air pipe 2 is connected to an air gun 12 via a solenoid valve 11. Further, the electrical wiring 20 passes through a control device 21 and is connected to the solenoid valve 11 . The control device 21 is capable of changing and adjusting its set values.

When the push-button power switch 19 is turned on, the air compressor 1 and the control device 21 are energized.

Note that 22 is a shuttlecock, which is initially loaded into each turn 14b.

[Function] When the power switch 19 is turned on, the air compressor 1 operates and sends air to the air pipe 2 and branch pipe 2a.

The air motor 3 rotates, and the partially toothed gear pulley 5 rotates via the heald 4.

While the pulley 5 with partially toothed gear is meshing with the ratchet gear 6, the ratchet gear is rotated clockwise in FIG.
0 turns and descends.

When the pulley 5 with a partially toothed gear is disengaged from the ratchet gear 6, the arm 7 and the racket 10 are rapidly pivoted upward by the coil spring 8. The solenoid valve 11 is switched by the operation of the control device 21 corresponding to this upward turning, and the air in the air pipe 2 is injected from the air gun 12.

The shuttlecock 22 in the recess 14b is pulled out from the recess 14b and falls. On the other hand, when the racket 10 has risen close to the air gun 12, when the arm 7 reaches the middle stopper 24, the racket 10 turns counterclockwise in FIG.
2 and sends shuttlecock 22 flying.

After hitting the upper stopper 25, the racket 10 swings downward slightly due to its own weight, hits the stopper piece 9, and stops.

The low speed rotating motor 13 is controlled by the output from the control device 21.
is slightly rotated, and the next recess 14b is the air gun 12.
Stop when you come to a stop.

The solenoid valve 11 is also switched and the air injection from the air gun 12 is also stopped.

The gear portion of the continuously rotating pulley 5 with partially toothed gear meshes with the ratchet gear 6 again, the ratchet gear 6 is rotated clockwise in FIG. 1, and the arm 7 is lowered to return to the initial state.

By repeating the above operations, the shuttlecock is thrown out continuously.

It should be noted that an electric motor can be used instead of the air motor 3 in the embodiment shown in the figures described above.

[Effects of the Invention] In the present invention, as a means for automatically firing a badminton shuttlecock, compressed air force, spring force, etc. are employed as the motive power for firing.

When using compressed air as power, a nozzle is attached to the tip of the compressed air piping and the jet is ejected inside the shuttle, giving the shuttle itself launch force. When using spring force as power, an electric motor or The badminton racket itself is rotated in a circular motion using a similar rotary machine, and at the same time the blades are held in tension, and the reaction force of the blades is used to rotate the racket in a circular arc and return to its original position, and the reaction force hits the shuttlecock head. This is a method of giving launch force to the shuttle itself.

As a means of automatically firing the shuttlecock intermittently, a method was adopted in which the power supply side, equipment, etc. could be controlled by an electric circuit such as a program controller.

As a means of launching the shuttlecock using compressed air force, an air compressor is used to attach a compressed air nozzle with an air pressure of 8 kg/CIA (g) to the inside of the shuttlecock whose head is set in the direction of travel. The shuttlecock fires forward and upward by opening the solenoid valve attached to the compressed air pipe and injecting compressed air from the compressed air nozzle.

As a means of firing the shuttlecock with a spring force, the badminton racket is rotated in an arc using a motor or a similar rotating machine, and at the same time, the coil spring is applied in the pulling direction, and the rotation comes off at around the 90 degree rotation angle. At the same time, the force of the coil spring returning to its original position causes the racket itself to rotate in the opposite direction, and the repulsive force of the racket hits the head of the shuttlecock, causing the shuttlecock to fire forward and diagonally upward. .

That is, the badminton shuttlecock automatic launch device according to the present invention, when servicing a shuttlecock in badminton sports, launches the shuttle using power such as air force or spring force, and adjusts the strength and weakness of the power source. By changing the angle of the shuttlecock launch pad, the launch distance, height, and speed of the shuttlecock can be adjusted.

Furthermore, since it has a function of changing the firing interval of the shuttlecock depending on the supply interval of the power source, it has the advantage that shuttlecock service for badminton can be automatically performed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of the whole, FIG. 2 is a schematic diagram of the nn sight mark in FIG. 1, and FIG. FIG. 1 Air compressor 2 Air piping 2a Branch pipe 3 Air motor 4 Heald 5 Pulley with gear 5a Lower shaft 6 Ratchet gear 6a Upper shaft 7 Arm 8 Coil spring 9 Hinge 9a Stopper piece 10 Badminton racket 11 Solenoid valve 12 Air gun 13 Motor 14 Storehouse Case 14a Inclined shaft 14b Recess 14c Through hole 15 Launch pad 16 Frame 17 Equipment stand 18 Casters 19 Power switch 20 Electrical wiring 21 Control device 22 Shuttlecock 23 Lower stopper 24 Middle stopper 25 Upper stopper

Claims (1)

[Claims] A racket (10) is attached to an arm (7) that rapidly turns upward, and when the racket (10) reaches a diagonal position between a horizontal position and a vertical position, a disk-type shuttle is stored. The shuttlecock (22) in the case (14) is ejected by an air gun (12) and dropped toward the racket (10), and the shuttlecock (22) is launched diagonally upward by the racket (10). An automatic shuttlecock launcher for badminton, characterized in that it is configured as follows.