JPS6110717Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a pitching machine for practicing ball catching.

In baseball fielding practice, it has been common practice to catch balls hit by Notsker, but it takes a high degree of skill and skill to hit a ground ball, liner, or fly ball to the target position. Launching a catch fly is particularly difficult for amateurs.

In view of the above-mentioned points, this invention provides a pitching machine suitable for ball catching practice that can accurately send ground balls, liners, fly balls, etc. to the target position.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in the figure, a plurality of rotatable ground wheels 2 are attached to the pedestal 1 so that it can be transported as desired, and a rotary table 3 is provided on the top of the pedestal 1.

The rotary table 3 has a vertical shaft 4 that protrudes downward from the lower surface.
is supported by a bearing 5 provided on the top surface of the pedestal 1, making it rotatable.

This rotary table 3 includes a pair of supporting columns 6, 6 facing each other, and a wheel support frame 7 is provided between the supporting columns 6.

The wheel support frame 7 includes opposing side plates 8, 8, and a horizontal shaft 9 protruding from the outside of the side plates 8 is rotatably supported by a bearing 10 attached to the upper part of the support column 6.

A pair of pitching wheels 11, 11 made of synthetic resin such as urethane resin are rotatably supported between the opposing side plates 8, 8 of the wheel support frame 7 with a required distance between their outer circumferences. 1
The exit of chute 12 is facing between 1 and 11.
Further, two motors 13, 13 are installed between the opposing side plates 8, 8, and these motors 1
3, the pitching wheels 11, 11 are rotationally driven. In this case, the pitching wheels 11, 11 are rotated in opposite directions as shown by the arrows in FIG. 1, and the ball supplied between the wheels 11, 11 is pitched forward by contact rotation. It's summery.

Note that variable speed motors are used as the motors 13, 13.

One end of an arm 14 is swingably supported via a pin 15 at the upper part of one of the pillars 6 that stands up from the rotary table 3. A pair of bearings 16 are attached to the upper part of the arm 14, a handle 18 is fixed to one end of a rotatable handle shaft 17 passed between the bearings 16, and a worm 19 is attached to the other end. This worm 19 meshes with a worm wheel 20 provided on the horizontal shaft 9 of the wheel support frame 7. With this configuration, when the handle 18 is rotated, the wheel support frame 7 rotates about the horizontal axis 9.

A swinging motor 21 is supported on the rotary table 3, a disc 22 is attached to the rotating shaft of the swinging motor 21, and a rod 23 is passed between the outer circumference of the disc 22 and the other end of the arm 14. has been done. Therefore, when the swing motor 21 is driven, the disk 22-
pin 15 through the crank mechanism by rod 23.
The arm 14 swings around the center.

The pitching machine shown in the embodiment has the above structure, and its operation will be explained next.

Now, by driving the two motors 13, 13 provided on the wheel support frame 7, the pitching wheel 11,
11 is rotated in the direction of the arrow in FIG. 1, and a ball is supplied from the chute 12 between the wheels 11, 11, the ball is sent forward due to the contact rotation with the pitching wheels 11, 11.

The pitching trajectory of the ball is determined by the positional relationship and rotational speed relationship of the pair of pitching wheels 11, 11. For example, when the pair of pitching wheels 11 are positioned one above the other as shown in FIG. The ball follows a straight horizontal trajectory and falls diagonally downward. In addition, in the above-mentioned positional relationship of the wheels 11 and 11, if the rotation speed of the lower wheel 11 is faster than the rotation speed of the upper wheel 11, the ball will draw a horizontal straight trajectory and fall in a parabola from the middle. do.

The positions of the pitching wheels 11, 11 can be changed by operating the handle 18.

For example, when the handle 18 is rotated, the wheel support frame 7 rotates around the horizontal axis 9, so that the vertical direction can be adjusted, and when the handle 18 is rotated horizontally,
Since the turntable 3 rotates around the vertical axis 4,
Horizontal orientation can be adjusted.

Therefore, by rotating the rotary table 3 around the vertical axis 4 and rotating the wheel support frame 7 around the horizontal axis, the ball supplied between the pair of pitching wheels 11, 11 can be rotated at any desired position. It can be thrown in any direction.

During such pitching, the swing motor 21
When the arm 14 is swung around the pin 15 by driving the arm 14, the worm 19 is supported by the arm 14, and the worm wheel 20 is engaged with the worm 19, so that the wheel support frame 7 rotates around the horizontal axis 9. It swings up and down at a required angle around the center, and the pitched ball becomes a ground ball, a liner, or even a fly ball.

In the embodiment, the wheel support frame is rotated by rotating the handle, but the rotation driving means is not limited to this, and any other mechanism may be used. For example, a gear may be attached to the horizontal shaft and this gear may be rotated by a motor.

As described above, according to this invention, the rotary table provided on the pedestal can be rotated around a vertical axis, and the wheel support frame supported by the opposing supports of the rotary table can be rotated around a horizontal axis. Since it is rotatable, the position of the pair of pitching wheels supported by the support frame can be adjusted vertically and horizontally by rotating the rotary table and rotating the wheel support frame. You can change the direction of flight at will. Therefore, it is suitable for ball catching practice.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view showing an embodiment of the pitching machine according to the invention, FIG. 2 is a front view of the same, and FIG. 3 is a left side view of FIG. 2. 1... Frame, 3... Rotating table, 4... Vertical axis, 6
...Strut, 7...Wheel support frame, 8...Side plate,
9...Horizontal axis, 11...Pitching wheel, 12...
...Shoot, 13...Motor.

Claims (1)

[Scope of utility model registration request] It consists of a pedestal, a rotary table supported by the pedestal, and a wheel support frame supported by a pair of pillars that stand up from the rotary table. The support frame is rotatable about a horizontal axis,
A driving means is provided to rotate the wheel support frame around this horizontal axis, and a pair of pitching wheels driven by a motor are attached to the wheel support frame, and a chute exit faces between the pitching wheels. A pitching machine for practicing catching balls.