JP2987479B2 - Badminton training machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a badminton training machine.

[0002]

2. Description of the Related Art For example, in ball games, such as tennis, in which a ball can hit any ball, such as no-bound and one-bound, it is possible to practice alone by using a wall or the like. It is impossible to practice overhead strokes, side arm strokes, etc. other than the service alone in a competition where the shuttle must meet in no bound. Therefore, there is a need for a badminton player to develop a machine that can practice the above-described overhead stroke, side arm stroke, and the like alone.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art.
Shuttles can be launched one at a time at regular intervals, one at a time, and exercises such as overhead strokes and side arm strokes can be performed alone,
An object of the present invention is to provide a badminton training machine that is small and lightweight and can be used easily.

[0004]

In order to achieve the above object, a badminton training machine according to the present invention is fixed to an upper portion of a support frame fixed in front of a frame, and a plurality of shuttles are arranged with the table facing downward. A hopper that holds the interior in a sequentially stacked state, and a shuttle pulling claw plate at the front end of the pair of rotating bodies, which is rotatably supported by the support frame at a predetermined center-to-axis distance in the left-right direction; A shuttle transfer mechanism that is rotated inwardly by each inward and pulls down and transfers the lower shuttle in the hopper one by one downwardly; and a lower part of the shuttle transfer mechanism capable of holding the shuttle in an inclined state. A shuttle waiting space having a shuttle launching port in front of the shuttle waiting space, and a shuttle in the shuttle waiting space can be driven forward and outward at a rear portion of the shuttle waiting space. A high-speed rotatable shuttle launching plate that is rotatably supported by the shuttle transport mechanism and the shuttle launching by the shuttle launching plate are alternately operated in an interlocking manner. .

[0005]

[Function] Connect to power supply by plug. On the other hand, when the required number of shuttles is loaded into the hopper with its platform facing downward, the first shuttle is held at the lower end of the inside of the hopper by a peripheral holding part without falling, so that a plurality of shuttles are held. The shuttle is stored inside the hopper in a stacked state.

Next, when the switches are turned on, the respective drive sources (motors) of the shuttle transfer mechanism and the shuttle launching plate are energized to start the respective drive sources. The drive source of the shuttle transfer mechanism is set in such a manner that the drive source of the shuttle transfer mechanism is first started and then the drive source of the shuttle driving plate is started with a time delay.

Accordingly, the pair of rotating bodies in the shuttle transfer mechanism are rotated inward by the driving source, so that the tips of the shuttle pulling claw plates protruding from the opposite ends of both rotating bodies are connected to the hopper. Of the plurality of loaded shuttles, the lowermost shuttle hangs on the shoulder of the table from both left and right sides, and pushes down the shoulders downward. As a result, the shuttle is pulled down against the holding force of the hopper, and is held in a state in which the table is directed downward at the rear and the blades are directed upward at the front in the shuttle standby space. Will be.

[0008] When the shuttle is pulled down in this manner, the subsequent shuttle descends one step in the hopper and is held without falling by the holding section. On the other hand, after the pair of rotating bodies make one revolution and pull down the shuttle, the cam follower of the timing switch enters the recess of the cam fixed to the rotating shaft of one of the rotating bodies, so that the timing switch is turned off. The driving source stops operating, and the pair of rotating bodies also stops.

Next, the drive source of the shuttle launching plate is started, and the shuttle launching plate is rotated in a predetermined direction. One end of the shuttle launching plate is rotatably hooked at an eccentric position of the rotation center, and a tension spring is provided. However, the tension is accumulated by being gradually pulled as the shuttle driving plate rotates, and the eccentric position extends a straight line connecting the rotation center of the shuttle driving plate and the hook point between the frame at the other end of the tension spring. At the point when the line is rotated, the tension becomes maximum.

Accordingly, the shuttle driving plate is rotated by the drive source, and the eccentric position where one end of the tension spring is hooked is rotated slightly beyond the above-mentioned extension line, and at the same time the tension is pulled. The tension of the spring suddenly acts as a rotational force on the shuttle launching plate. This allows
The shuttle launching plate is rapidly rotated at a high speed in a predetermined direction, and the tip of the shuttle launching plate pushes the lower end of the shuttle in the shuttle waiting space from inside to outside cooperatively, whereby the shuttle moves forward. It will be launched outward and upward from the launch opening.

When the shuttle launching plate comes into contact with the contact of the timing switch at a predetermined rotation angle after the shuttle launching, the drive source of the shuttle switch is stopped, and the drive source of the shuttle transfer mechanism is started instead. And pull down one shuttle in the hopper downward. Hereinafter, a plurality of shuttles can be launched at regular time intervals by repeatedly performing the same operation as described above.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 shows an entire longitudinal side view, FIG. 2 shows an overall longitudinal sectional view of a shuttle launch state, FIG. 3 shows an overall plan view, and FIG. 4 is a view taken along line AA 'in FIG. FIG.

As shown in FIGS. 1 to 4, at a front end in a frame 1 formed by an angle and a plate material into a cube, a lower portion of the frame 1 is supported on the left and right sides at an appropriate distance in the left and right direction. The plates 2 and 2 are fixed upright by bolts 3... Stop, and a support frame 4 formed long in the left and right direction is fixed on both support plates 2 and 2 by bolts 5. I have.

A cylindrical popper 7 for accommodating a plurality of shuttles 6 in a stacked state as shown in FIG. 1 is vertically fixed to the center of the support frame 4 in the left-right direction. . The hopper 7 has an inner diameter that allows the shuttle 6 to be loaded to fall by its own weight, but the shuttle 6 does not fall down from the hopper 7 in a downward direction.
A holding portion 9 of the shuttle 6 is formed inside the lower end by fitting a cylindrical body 8 having an upper end having a maximum diameter and a lower end penetrating a tapered hole 8 a having a minimum diameter. Feather 6
The portion a is engaged, and the shuttle 6 is provided so that the platform 6b is suspended in the support frame 4 as shown in FIGS.

The hopper 7 has a horizontal flange 7a formed on the outer periphery of a lower end thereof, and the flange 7a is attached to band-shaped fixing plates 10 and 10 erected at the upper end of the support frame 4 by height adjusting bolts 11.・ ・ It is fixed and installed.

At the lower part of the hopper 7, the support frame 4
Inside, a shuttle transfer mechanism 12 for pulling down the shuttles 6 from the hopper 7 one by one is formed. The shuttle transfer mechanism 12 is configured as follows. A pair of left and right rotating bodies 13, 13, each of which has a pair of left and right rotating bodies 13, 13 having hooks 14 for hanging the shoulders of the base 6 b of the shuttle 6 and pulling down downward, are provided at the opposite ends. Each of the rotating shafts 15, 15 is rotatably supported by the rotating shafts 15, 15 between the rotating shafts 4a, 4b, and is fixed to both extending ends of the rotating shafts 15, 15 extending forward from the front frame plate 4a. The gears 16 having the same size are rotatably supported on the front frame plate 4a and meshed with two gears 17 having the same size which are meshed with each other. A drive shaft (not shown) of a drive source 18 by a motor fixed to the motor and one of the rotating shafts 15 and 15 are interlocked and connected.

A cam 19 is fixed to the end of the other one of the rotating shafts 15, 15.
9, the cam follower 20b of the arm 20a of the timing switch 20 is in contact with the timing switch 20. When the cam follower 20b enters the recess 19a of the cam 19, the timing switch 20 operates and the drive source 18 stops. It is configured.

Therefore, when the drive source 18 is started by energization, one of the rotating shaft 15, the gears 16, 17, 17, 1 and
6, a pair of left and right rotating bodies 13 via the other rotating shaft 15,
13 are rotated inward, and the tips of the rotating bodies 13 and 13 on the claw plates 14 and 14 are hooked on both shoulders of the base 6a of the shuttle 6 and pushed downward as shown in FIG. The shuttle 6 is pulled down from the hopper 7 and transferred.

Here, the above-mentioned pair of rotating bodies 13, 13
Is configured as follows. As clearly shown in FIG. 5, a concave groove 13b is long in the front-back direction (left-right direction in FIG. 5) on the upper surface of the main body 13a externally fixed to the rotation shaft 15,
The groove 13b has a recess 13d connected to the rear end of the groove 13b. The claw plate 14 is provided with the claw plate 14 and the recess 13d. 13d, a hook piece 14a bent at the rear end of the claw plate 14 is slidably fitted in each front-rear direction, and the hook piece 14a is
Each end of the compression spring 1 abuts against the rear wall of the recess 13d.
3e, the substrate 13f is screwed on the upper surface of the main body 13a.
3g ... it is fixed by a stop, and by this,
The claw plate 14 is slidable in the front-rear direction and a compression spring 13e.
And is supported by the main body 13a in a state of being pushed forward and biased.

That is, as shown in FIG. 4, the shoulder of the platform 6b of the shuttle 6 is hooked from both sides by the tips of the claw plates 14, 14 of the pair of rotating bodies 13, 13, and the shuttle 6 is lowered. When pulling down on the shoulder of the table 6b,
When a force greater than the spring force of the compression spring 13e acts, the claw plate 14 retreats against the spring force, so that an unreasonable force is not applied to the table 6b and its shoulder. As a result, the shuttle 6 is pulled down without being damaged by the claw plates 14 and 14.

Next, a shuttle waiting space 21 for holding the shuttle 6 pulled down from the hopper 7 is formed below the shuttle transfer mechanism 12.

As shown in FIG. 4, the shuttle waiting space 21 has a curved plate 22 having a substantially U-shaped longitudinal section and a bottom surface inclined upward to the front of the shuttle outlet 23.
Is fixed between the two support plates 2, 2,
The shuttle 6 has its blades 6a directed toward the ejection opening 23, and the table b has moved backwards, that is, as shown in FIGS. , So that the table b can be held in a state of being inclined rearward and downward.

The shuttle waiting space 21 is provided with an opening 24 along a rotation locus of a shuttle launching plate, which will be described later, so that the rear portion and the rear plate 4b of the support frame 4 communicate with each other. It is formed to be wider by an appropriate dimension than the width of the shuttle launching plate.

As shown in FIGS. 1 to 3, a mounting frame 25 is provided inside the frame 1, behind the shuttle waiting space 21, in the front-rear direction and fixed vertically. A shuttle driving plate 27 is rotatably supported on one side of the mounting frame 25 by a rotary shaft 26.

The shuttle launching plate 27 includes a block 27a fixed to the rotating shaft 26 thereof, and a block 27a.
The base end is formed by a shuttle driving plate 27b fixed by bolts 28. The shuttle launching plate 27b is formed by a band-like leaf spring so that a large launching force can be obtained at the lower end of the table 6b of the shuttle 6 by rotation. However, when the shuttle 6 is launched, the shuttle launching plate 27b is greatly elastically deformed. Cannot provide a sufficient launching force, and as shown in FIG.
The belt-like leaf springs 27c, 27d, and 27e are superposed with their base ends aligned in order of length, and in this state, the base end is fixed to the block 27a with bolts 27. Strongly formed.

In the shuttle launching plate 27, that is, in the block 27a, the rotation center O
On the other hand, at an eccentric position symmetrical to the shuttle launch plate 27b, a spring hooking rod 29 is projected from a pin or the like, and the spring hooking rod 29 and a spring hook 30 provided at the rear of the frame 1 are provided. A tension spring 31 is extended from the end.

One end of the tension spring 31 is bent in an annular shape, whereby one end of the tension spring 31 is rotatably hooked to the spring hook 29.

A drive source 33 such as a motor is fixedly mounted on the mounting frame 25 on the side opposite to the shuttle launching plate 27 via a gear case 32. A drive shaft (not shown) and a reduction gear (Not shown) through the rotating shaft 2
6 is interlockingly connected.

The driving source 33 includes a timing switch 3
4 is electrically connected to the timing switch 3
4 is electrically connected to the drive source 18 of the shuttle transfer mechanism 12 and the timing switch 20 which is electrically connected via the control box 35.
The timing switch 34 is provided with a contact rod 36, which is actuated by contacting the shuttle launching plate 27, whereby the drive source 18 is started to rotate.

The drive source 33 and the control box 3
Reference numeral 5 denotes a cord 38 with a plug 39 which is connected to an operation panel 37 fixed to the rear part of the frame 1 and is connected from the operation panel 37 to a power supply (not shown).
9 and connected to a power supply (not shown).
N, by turning on the OFF switch 40, the control box 35, the drive source 18,
33, the timing switches 20, 34 are energized.

In the above-described badminton training machine, when the switch 40 is turned on, the drive source 18 is started by energization, and the pair of rotating bodies 13, 13 are rotated inward and protrude from the opposite ends. The tips of the claw plates 14, 14 hook the shoulders of the platform 6 b of the shuttle 6 and push it downward, whereby only the lowermost shuttle 6 in the hopper 7 is pulled down, and the shuttle waits. It falls into the space 21 and is maintained in an inclined state as shown in the figure.

The cam 19 makes one revolution by the rotating shaft 15,
When the cam follower 20b enters the recess 19a, the rotation of the arm 20a activates the timing switch 20, and the drive source 18 stops. As a result, the cattle transfer mechanism 12 is stopped, and at the same time, the other timing switch 34 is operated by the signal from the timing switch 20, and the driving source 33 is started.

When the rotary shaft 26 is rotated by the driving source 33, the shuttle driving plate 27 is rotated clockwise as indicated by an arrow a from the position shown in FIG. 31 is rotated against the tension of the shuttle 31, and the shuttle launching plate 27 is moved to the position shown in FIG.
A straight line b connecting the center O of the tension spring 31 and the other end of the tension spring 31 to the position of the other end of the tension spring 31 hooked on the spring hook 30.
In a state where the spring hooking rod 29 for hooking one end of the extension spring 31 is positioned on the extension line of the above, the extension spring 31 is extended to the longest length, and the shuttle hitting power is accumulated in the extension spring 31.

Accordingly, the shuttle launching plate 27 is slightly rotated from the position shown in FIG. 2 in the direction of the arrow a, and at the same time, the tension by the tension spring 31 acts on the shuttle launching plate 27, whereby the shuttle launching plate 27 is operated. The driving plate 27 is rapidly and rapidly rotated in the direction of the arrow a, and the table 6b of the shuttle 6 in the cavity 21 is strongly hit at the tip thereof, whereby the shuttle 6 is moved outward and upward from the front shuttle discharging port 23. It will be launched towards.

When the shuttle driving plate 27 makes one rotation and comes into contact with the contact 36 of the timing switch 34, the driving source 33 is stopped, and at the same time, the driving source 18 is started by a signal from the timing switch 34, and the shuttle transfer is performed. The mechanism 12 is operated. By repeatedly performing the above operation, a plurality of shuttles 6 in the hopper 7 are sequentially launched one by one at a time interval.

The shuttle launching force can be arbitrarily adjusted by replacing the tension of the tension spring 31 itself with a different spring constant. In FIGS. 1, 2 and 4, reference numeral 41 denotes an underframe with legs 41 a for mounting the training machine so that the angle in the left-right direction can be adjusted, and reference numeral 42 denotes a lid.

[0037]

Since the present invention is constructed as described above, by loading a plurality of shuttles into the hopper, the shuttles can be driven one by one at regular time intervals. It is effective because it can be practiced alone and can practice overhead stroke, side arm stroke, etc., and it is small and lightweight, so it is easy to handle and can be used in narrow places, and special operation Since it is not required, it can be used by any number of people, and the shuttle launch distance and speed can be arbitrarily adjusted only by changing the tension of the tension spring or the like.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of a badminton training machine according to the present invention.

FIG. 2 is a vertical sectional side view showing a state immediately before shuttle launching, showing the embodiment.

FIG. 3 is a plan view showing the embodiment with the lid open.

FIG. 4 is a sectional view taken along line AA ′ in FIG. 1;

FIG. 5 is an enlarged vertical sectional view showing a rotating body of a shuttle transfer mechanism in the training machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 4 Support frame 6 Shuttle 6b Shuttle stand 7 Hopper 12 Shuttle transfer mechanism 13, 13 A pair of rotating bodies 14 Shuttle pull-down claw plate 18, 33 Drive source 21 Shuttle standby space 23 Shuttle launch port 27 Shuttle launch Plate

Claims (1)

(57) [Claims] 1. A hopper fixed to an upper portion of a support frame fixed to the front of the inside of a frame and holding a plurality of shuttles in a stacked state with the table facing downward, and a shuttle mounted on front ends of a pair of rotating bodies. It has a claw plate for pulling down, and is supported by the support frame at a predetermined center distance in the left-right direction,
A shuttle transfer mechanism that is rotated inwardly by the drive source and pulls down the lower shuttle in the hopper one by one to transfer it, and the shuttle can be held in an inclined state below the shuttle transfer mechanism. And a shuttle waiting space having a shuttle launching port in the front, and a shaft at a rear portion of the shuttle waiting space so that the shuttle in the shuttle waiting space can be driven forward and outward. A badminton practice, comprising: a supported high-speed rotatable shuttle launching plate, wherein shuttle transfer by the shuttle transfer mechanism and shuttle launching by the shuttle launching plate are alternately and interlockingly operated. Machine.