JPS6223579B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a baseball/softball pitching practice device, and is a novel device that allows one person to easily practice pitching.

In baseball and softball, a pitcher is needed to practice pitching, and repeated practice is inefficient when practiced alone, so for example, even if a pitcher wants to practice, if there is no one to play catcher, he will not be able to achieve his goal by himself. The reality is that this is far from the case.

Therefore, there was a desire to develop a mechanical device that would allow one person to practice pitching to a target position.

The present invention can meet such demands, and to describe this embodiment based on the drawings, a buffer material 4 is provided on the front surface of a substrate 1 in which a plurality of floodlights 2 are embedded, and a through hole 3 is provided through which light from the floodlights passes. pitching practice in which tape switches 5 are arranged vertically and horizontally and orthogonally arranged on the front surface of the cushioning material 4 so that the intersection point is located at the center of the through hole 3, and a projection screen 6 is provided on the front surface of the tape switch 5. It is a device.

The arrangement of the through hole 3 and the tape switch 5 is as follows.
As shown in the figure, through holes may be provided at the four corners of the intersections where the tape switches intersect at right angles.

In use, when a pitcher throws a ball toward a target projected onto a projection screen 6 by a projector 2, the ball collides with a cushioning material 4 via the projection screen 6 and tape switch 5.

The position where the ball hits can be detected because the vertical and horizontal tape switches 5 are compressed between the ball and the cushioning material 4, causing current to flow. The lighting of the projector 2 can be input manually using the lamp controller shown in FIG. 3, or can be turned on according to a lighting order stored in advance in the RAM.

The lamp controller has a group of pushbutton switches arranged in the same arrangement as the floodlight, as well as "manual input", "sequence input", and "sequence output".
It consists of a selector switch, a multiplexer to identify which of these switches is pressed, and a sample-and-hold circuit, and the input signal from the switch is taken into the CPU from the input port. In ROM. Contains system programs that sequentially run the CPU to perform a series of operations. RAM is used as the program progresses.
Information to be processed by the CPU is temporarily stored, and the lighting order for sequentially lighting the floodlights one after another is stored. When using manual input, select "Manual input" with the switch on the lamp controller and press the push button switch corresponding to the position of the emitter you want to light.The CPU recognizes this position and selects the output port. The selected projector lights up via the decoder and lamp driver, and at the same time, the pitching target on the CRT corresponding to the position of the projector flashes.

Also, since the pitched ball will hit one of the intersections of multiple tape switches arranged vertically and horizontally, this position can be adjusted vertically and horizontally.
It is detected separately in the left and right directions by a multiplexer, input to the CPU from the input port, and displayed along with the pitching target at the corresponding position on the CRT.

When performing sequence operation, first set the lamp/
By setting the switch on the controller to "sequence input" and pressing the corresponding pushbutton switches in accordance with the order of pitching targets, the positions and order are stored in the RAM.

When practicing pitching, select "Sequence Output" and the first memorized floodlight will light up, the corresponding pitching target on the CRT will flash, the input ports of the tape switch group will become active, and the ball will be displayed. Wait for the collision. When there is an input to either tape switch, the CPU recognizes its position and switches the CRT to
Display the above position and control the floodlight and CRT to display the next pitching target.

As described above, the device of the present invention indicates a pitching target on the projection screen 6 by lighting the projector 2, and hits the ball on a surface perpendicular to the tape switches 5 arranged at regular intervals, in the vertical direction of the hit area. Since the left and right directions can be detected and displayed together with the target position, it is possible to practice pitching alone and check the results by oneself, making it useful as a pitching practice device.

[Brief explanation of the drawing]

The drawings show an example of the present invention; FIG. 1 is a perspective view, FIG. 2 is a plan view of main parts in another embodiment, and FIG. 3 is an explanatory diagram of a lamp controller. 1... Board, 2... Floodlight, 3... Through hole, 4
...Cushioning material, 5...Tape switch, 6...Projection screen.

Claims (1)

[Claims] 1. On the front of the board 1 in which a plurality of floodlights 2 are embedded,
A cushioning material 4 with a through hole 3 through which the light from the projector 2 passes is attached, and a tape switch 5 is installed vertically and horizontally on the front surface of the cushioning material 4 so that the intersection point is located at the center of the through hole 3. This pitching practice device is characterized in that it is arranged side by side orthogonally and a projection screen 6 is provided in front of the device.