JPH07110291B2 - Pitching machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor-driven pitching machine used for batting practice and defensive practice such as baseball, softball, and soccer.

As a conventional pitching machine, a pitching box is rotatably mounted on a trolley on which a wheel is movably mounted, and the pitching box is rotated perpendicularly to the pitching direction at a predetermined angle. There are known locks and locks that rotate the machine base to which the support columns are joined horizontally with respect to the pitching direction (JP-A-62-114575 and JP-A-63-209679).
issue).

In theory, such a device can throw in any direction.

Problems to be Solved by the Invention However, such a conventional pitching machine has the following inconveniences.

In the case of the vertically and horizontally movable system, it is possible to reproduce straight ball hits such as up and down from the infield goro to the catcher fly, left and right from the first to the third direction, slices, hook balls, etc. In the case of a ball, only a ball with no momentum can be reproduced. Therefore, an object of the present invention is to provide a device capable of reproducing a ball that matches an actual hit ball.

Means for Solving the Problems That is, the present invention is to provide two struts that are vertically and parallelly joined to each other on a machine base, a circular ring rotatably supported by the struts, and an inner circumference of the circular ring. A pitching machine slidably mounted on the circular ring supported by the support column and a pitching machine configured so that the pitching box mounted on the circular ring can be locked at predetermined positions. Achieve the purpose.

Action In the pitching machine according to the present invention, the circular rings pivotally supported by the two columns in the unlocked state swing vertically in the pitching direction and further along the inner circumference of the circular ring. Since the pitch box slides and rotates,
It is easy to change the type of ball that is launched from the throw box. Then, when the circular ring is locked at a predetermined position, the pitching direction of the ball (vertical direction) is determined, and when the rotation of the pitching box is locked at a predetermined position, the type of pitched ball is determined.
It is possible to throw a ball type such as a curve or a chute without changing the rotation speed of the rotor.

EXAMPLES The present invention will be described in detail below with reference to an example shown in FIGS. 1 and 2.

In the figure, 1 is a dolly in which wheels 4 and 3 are rotatably supported by shafts 2 and 3, and a pedestal 6 of the dolly 1 is provided with a shaft 7 at the center and a floating roller 8 around the shaft 7. There is. Machine stand 10 for axis 7
Is pivotally mounted, and the machine base 10 is mounted on the swing roller 8.

Two pillars 11 and 12 which are parallel to each other and stand upright in the vertical direction are joined to both ends of the machine base 10, and the pillars 11 and 12 have a cross section L.
A letter-shaped circular ring 13 is pivotally mounted via a shaft 14.

A shaft 14 that axially supports a circular ring 13 projects outward from the column 12 side, and a rotating disk 15 is fixed to the projecting shaft 14.

Further, a holding means 16 is joined to the middle of the column 12, and the rotating disk 15 can be fixed by being held. Reference numeral 17 is a lever for loosening or tightening the holding means 16.

The circular ring 13 has a protruding portion 13a on the inner side, and a roller having a V-shaped or U-shaped groove axially supported by pieces 19 and 20 joined to both ends of the protruding portion 13a and the pitch box 18. The groove of 21,22 is in sliding contact.

The pitching box 18 is equipped with two drive motors 23, 24 that receive electric power from a power source (not shown) and two rotors 25, 26 that rotate from the motors 23, 24 via a power transmission means such as a belt. Has been done.

One piece 19 of the throw box 18 is partly projected outward from the outer circumference of the circular ring 13, and the member located on the outer circumference of the circular ring 13 at the end of the protruding piece 19 is the outer peripheral surface of the circular ring 13. A stopper 27 is screwed so as to vertically contact with.

It is preferable that the rotors 25 and 26 of the pitching box 18 are set so that the balls are fired at the center of the circular ring 13.

Reference numeral 28 is a handle for angle adjustment joined to the pitch box 18.

29 provided on the base 6 is a stopper for fixing the machine base 10 that slides on the idler roller about the shaft 7, and the stopper 29 is screwed to the bracket 36 joined to the base 6. The machine base 10 is configured to be pressed against the floating roller 8 and locked.

In the apparatus according to the present invention having the above-described structure, the wheels 4 and 5 mounted on the carriage 1 are rolled to carry the apparatus to a predetermined position.

Then, with the stopper 29 loosened, the machine base 10 is rotated in the horizontal direction to determine the pitching direction (horizontal direction), and then the stopper 29 is used for fixing.

Next, the holding means 16 is loosened and the circular ring 13 is vertically rotated to a desired position to adjust the pitching direction (vertical direction), and then the holding means 16 is tightened and fixed. After adjusting the horizontal direction and the vertical direction, while holding the handle 28 installed in the pitch box 18, slide the pitch box 18 in the circular ring 13 to
Adjust the position of the rotors 25 and 26 mounted on the
Fix at 7.

As a result, the two rotors 25, 26 may be in the vertical direction (vertical curve, straight) as shown in FIG. 1, or may be horizontal or oblique (not shown) (slider, horizontal curve, shoot, straight).

However, in this embodiment, the pitching position is located at the center of the circular ring 13, so that it is always located at the same place.

Effects As described above, in the device according to the present invention, since the circular ring supported by the two columns joined to the machine base is rotated in the vertical direction and can be locked in a predetermined position, The throwing direction (up and down direction) of the device can be freely changed. Further, since the throwing box can slide on the inner circumference of the circular ring and lock it at a predetermined position, it can be used for all kinds of balls without moving the entire device and adjusting the rotation speed of the rotor. Seeds can be thrown.

Further, since the pitch box can rotate 360 degrees in the circular ring, in the conventional device, at least three types of curve, chute, and straight were required for adjusting the number of rotations of the rotor. Adjustment is enough.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the device according to the present invention,
FIG. 2 is a side view of the device. 1 ...... bogie, 2, 3 ...... axis 4,5 ...... wheel, 6 ...... stand 7 ...... axis, 8 ...... floating roller 10 ...... machine stand, 11, 12 ...... pillar 13 ...... circular ring, 14 …… Axis 15 …… Rotating plate, 16 …… Clamping means 17 …… Lever, 18 …… Pitch box 19,20 …… Strip, 21,22 …… Roller 23,24 …… Drive motor, 25,26… … Rotor 27,29 …… Stopper, 28 …… Handle 30 …… Bracket

Claims (1)

[Claims] 1. A pair of columns, which are vertically and parallel to each other and are joined to each other on a machine base, a circular ring rotatably supported by the columns, and slidably mounted on an inner circumference of the circular ring. A pitching machine comprising: a pitching box, wherein the circular ring supported by the column and the pitching box mounted on the circular ring can be locked at predetermined positions.