JPH01126988A - Ball-pitching machine for training of soccer - Google Patents

Abstract

PURPOSE: To impart various spinning effects by making a ball guiding rod change guiding positions thereof in the axial direction of rotors to allow the spinning of balls upward or downward while varying the position of the balls to match with the size thereof even when the size thereof is different. CONSTITUTION: When a pair of rotors 2 and 2 is rotated and a ball is fed through a ball insertion port 3, the ball is shot at a ball shooting port by a propelling force applied with the rotation of the rotors. When an operating part 34 is operated, an operation rod 22 is moved vertically to vertically adjust guide pieces 26 and 27 so that shot ball is spun upward or downward in cooperation with an upper or lower contact piece 28 or 29 to be curbed. Moreover, when an operating part 23 of an adjusting arm 19 is turned, for example, to a position L or S to match the size of the shot ball, the guide pieces 26 and 27 are lowered to the respective positions and set at the right angle to parallel surfaces of the rotors 2 and 2 while the center position of the ball is aligned with the center position of the guide pieces.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ball throwing machine that automatically throws a ball for soccer practice.

(Prior art) Conventional soccer practice ball throwing machines do not impart enough spin to the ball, and the feeding position relative to the rotor is not changed for balls of different sizes, so it is difficult to impart spin depending on the size of the ball. It had the disadvantage that the contents were different.

(Problems to be Solved by the Invention) The present invention attempts to make it possible to impart various spins to the ball and to uniformly impart spin to balls having different diameters.

(Means for Solving the Problems) In the present invention, the ball guide rod that supplies the ball between the pair of rotors changes its guiding position in the axial direction of the rotor, so that vertical spin can be imparted and the sizes are different. By changing the position of the ball according to the size of the ball, it is possible to apply various spin effects to the ball.

(Function) The present invention includes a pair of rotors whose rotational axes are supported in parallel to each other, and the rotational force of the rotor is applied to the balls supplied between the pair of rotors from a ball insertion port, so that the balls are supplied from a ball insertion port to a ball from a firing port. a ball guide rod configured to fire a ball, each base end of which is pivotally connected to the main body, and a ball guide rod that extends between the pair of rotors at the distal end and is connected to a connecting shaft at a central portion; A connecting rod is swingably supported at one end of an adjusting arm pivotally connected to a support fixed to the main body, one end of the connecting rod is connected to a connecting shaft of the ball guide rod, and the other end is connected to an operating rod. A second operating section is connected to the first operating section via the adjusting arm, and a second operating section is provided at the other end of the adjusting arm (and the adjusting arm is rotatable to an appropriate position). The present invention is characterized in that by operating the second operating section, balls of various sizes can be thrown to the rotor under the same conditions.

(Embodiment) An embodiment of the present invention will be described below. L is the main body of the ball launcher of the present invention, and inside the main body, there are motors and the like that drive the balls in opposite directions so that the balls are launched by a driving source such as a motor. A pair of rotors 2, 2 to be rotated are supported with respective axial portions of the rotors 2°, 2° parallel to each other and with an interval such that the outer peripheral portions 2”, 2” of the ball A can contact and pass between them. It is being 3 is a ball insertion port of the ball launcher, and 4 is a ball launch port formed in the cover integral 5 of the main body l. Reference numeral 6 denotes a stand on which the main body 1 is placed for convenient movement.A pair of wheels 7.7 are provided at the front lower end, a pair of legs 8.8 are provided at the rear lower end, and the upper is provided with a pair of gripping parts 9, 9 for gripping during movement.

Reference numeral 10.11 denotes left and right ball guide rods, and the left and right ball guide rods are bent in the shape of an inverted character, and their base ends 12 and 13 are pivotably attached to the main body l, and are approximately The left and right ball guide rods 10.11 are connected to one end of the connecting rod 16 via the connecting shaft 15.

The connecting rod is supported at one end 20 of a U-shaped adjustment arm 19 supported by a pivot 18 on a support 17 fixed to the main body 1, and the other end 21 of the connecting rod 16 is connected to the lower end 22 of the operating rod. The connected operating rods can be moved up and down in the direction of arrow B-B' by operating the operating section 34 mounted on the upper part, so that the connecting rod 16 can be swung around the support section of the adjusting arm 19. Therefore, one end of the connecting rod 16 is moved up and down together with the left and right connecting ball guide rods t o, t t.
The left and right ball guide rods 10.2 are moved up and down to the C or D position.

The adjusting arm 19 has an operating section 23 formed at the other end, and is rotatable up to the range of the S scale with the M scale as a reference. 9 is a screw shaft 2 passing through the elongated hole 24 in the center.
It is fixed with a tightening nut screwed into 5.

Horizontal guide pieces 26, 27 extending into the gap between the pair of rotors 2, 2 are disposed at the tips of the left and right ball guide rods t0, tt.

Above and below the gap between the pair of rotors 2.2, upper contact pieces 28 and 29 are fixedly fixed to the main body in a vertical direction so that the mounting position can be adjusted according to the size of the usage.

30 is a control operation unit, 31 is a power switch, 32 is an operation dial for applying a curve to the left or right and upward or downward to the shot ball, and 33 is a control dial for the speed at which the shot ball is launched. It is.

Since one embodiment of the present invention has the above-described configuration, by operating the power switch 31, the pair of rotors 2.
When the ball is rotated and a reball is inserted through the ball insertion slot 3, the ball rolls on the two guide pieces 26, 27 provided at the ends of the left and right ball guide rods 10, 10, and passes through the pair of rotors 2. The ball is guided between the balls and is given a starting force by the rotation of the rotor, causing the ball to be launched from the ball launcher.

By operating the operation dial 32, the rotational speeds of the left and right rotors 2, 2 can be controlled differently to give spin to the shot ball and curve it to the left or right.

By operating the speed control dial 33, the ball's launch speed can be controlled and the flight distance can be changed.

Further, when the operation section 34 is operated, the operation rod 22 is moved in the vertical direction (BB'), so the guide piece 26.
27 is adjusted up and down, so that the pair of rotors 2.2
Since the position of the ball passing between them is controlled, the pair of rotors 2.2 and the upper or lower contact piece 28.29 work together to give the launched ball an upward (hop) or downward (drive) spin. It can be curved.

Furthermore, adjust the operation part 23 of the adjustment arm 19 to the size of the shot ball, for example, when using a No. 5 ball (large) (second
(See figure) When the guide pieces 26 and 27 are rotated to the position L, the guide pieces 26 and 27 are lowered to the position D, and the center position of the ball is made to be perpendicular to the parallel planes of the rotors 2, 2 and coincide with the center position thereof.
When using the No. 3 ball (small), if it is rotated to the S position, the guide pieces 26 and 27 will rise to the C position, and the ball will be perpendicular to the parallel planes of the rotors 2, 2 and aligned with the center position of the ball. The center positions are made to coincide.

(Effects) The present invention operates the operating portion 34 by using the ball guide rod 10.11, which has a guide piece 26, 27 at its tip that extends horizontally between the pair of rotors 2.2. Since the height of the guide pieces 26 and 27 can be easily adjusted by rotating the guide pieces 26 and 27, the operation of firing a curve ball becomes easier.

Moreover, even if the diameters of the balls are different, the ball guide rod to,
The center of the ball can be easily aligned with the center of the pair of rotors 2.2 by operating the other operating section 23 connected to the tt, so a stable ball trajectory can be achieved for balls of any size. This device is capable of repeatedly and continuously firing the ball, and can be used by a wide range of soccer players from various walks of life, including players of junior high school age and above, and elementary school players, and is highly effective in practice.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is an external view of the invention, FIG. 2 is a front view of the main parts of the invention, and FIG. 3 is a side view of the main parts of the invention. .2 is rotor, 2°, 2°
is the rotor shaft, 3 is the ball insertion port, 4 is the ball launch port,
10.2 is a ball guide rod, 23 is an operating section, 24 is an operating section, and 26.27 is a guide piece. Patent applicant Janome Sewing Machine Industry Co., Ltd. Figure 1 Figure 2 SML Figure 3

Claims (1)

[Claims] A pair of rotors whose rotational axes are supported in parallel to each other is disposed in the main body, and the rotational force of the pair of rotors is applied to the ball supplied between the rotors from the ball insertion port to cause the ball to be launched from the launch port. In a soccer practice ball throwing machine, each base end is pivotally connected to the main body, a guide piece extending between the pair of rotors is disposed at the distal end, and a ball guide rod is connected to each other by a connecting shaft approximately in the center. a connecting rod is swingably supported at one end of an adjusting arm pivotally connected to a support fixed to the main body, one end of the connecting rod is connected by a connecting shaft of the ball guide rod, and the other end is connected to the connecting rod by a connecting shaft of the ball guide rod. The adjusting arm is connected to the first operating section via an operating rod, and the second operating section is provided at the other end of the adjusting arm, and the adjusting arm is rotatably fixed at an appropriate position. Ball throwing machine for soccer practice.