JP2002186699A - Batting practice device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a batting practice device which gives more proper batting posture. SOLUTION: Screen part 1 has a projector 2, which can project a pitcher's pitch and a pitch window 4 is prepared in a part of the screen part 1. A shooting device 3, which shoot a ball to a batter through the pitch window 4, that has a board to open or close according to the operation of the shooting device 3, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hitting practice device installed in a batting center or the like, and more particularly to a hitting practice device capable of performing optimal hitting practice in accordance with a pitching operation of a professional pitcher.

[0002]

2. Description of the Related Art The present applicant has provided a batting practice device called a virtual batting dome, in which a pitching operation of a professional pitcher is projected on a screen while a ball is radiated from one corner of the screen. With this device, it is possible to practice batting in accordance with the pitching operation of a professional pitcher, instead of simply hitting a flying ball like a normal batting center. And when it is possible to make a justmeat skillfully, it is excellent in that a pleasure of capturing the ball of a pitcher of a professional baseball can be obtained.

[0003]

However, in the conventional apparatus, one corner of the screen is open, and a hit ball jumps out of the corner, so that as a batter who wants to meet just, he must pay attention to that corner. I could not deny the inadequacy as a batting practice (see FIG. 7). Even though it is on the screen, since a professional pitcher pitches, you should pay attention to the pitcher's pitching movement until the pitcher actually releases the ball, which is more appropriate and effective as a hitting practice It is. In addition, the pleasure is doubled when just-meat is made after timing is set in accordance with the pitcher's pitching movement.

[0004] The present invention has been made in view of the above points, and it is an object of the present invention to provide a striking practice device capable of performing a more appropriate striking operation.

[0005]

In order to solve the above-mentioned problems, a hitting practice apparatus according to the present invention comprises a projection device for projecting a pitching action of a pitcher on a screen member, and a pitching window formed on a part of the screen member. And a launching device for launching the ball toward the batter through the pitching window, wherein an opening / closing plate provided on the pitching window is opened and closed according to the operation of the launching device.

A front window frame, a back window frame, and the opening / closing plate are integrally attached to the pitching window, and the front window frame and the back window frame are formed such that a flange portion has four directions from a hollow rectangular main body. It is preferable that the two flange portions sandwich the screen member in a mounted state. Further, the opening / closing plate is constituted by a plate member colored in the same color as the screen member, and an ear portion having left and right upper ends of the plate member bent, and by pulling a wire fixed to a part of the ear portion. Preferably, the opening and closing plate is opened.

Further, on the back side of the screen member,
It is preferable that the band is sewn vertically and horizontally, and that ring-shaped metal fittings fixed to both ends of the band 7 are fixed to pillars provided on four sides of the screen member. The screen member is generally constructed by incorporating a shock absorbing material in a tent material, and the projection device generally projects a pitching operation from the batter's side.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments. FIG. 1 is a schematic configuration diagram illustrating a side view of a striking practice device according to an embodiment. This device includes a screen member 1 having a built-in shock absorbing material between tent members 6a and 6b on the front and back surfaces, a projector 2 for projecting a pitcher's pitching operation on the screen member 1, and a pitcher's pitching operation. It comprises a launching device 3 for launching a ball, and a control device 5 for controlling opening and closing of the pitching window 4 in accordance with the operation of the launching device 3. Note that there is no intervening object such as a defense net between the projector 2 and the screen member 1, and the projected image can be seen clearly.

FIG. 2 is a front view of the screen member 1 as viewed from the direction of the firing device 3. 7 are sewn vertically and horizontally to the tent member 6b on the back side, and are fixed to ring-shaped metal fittings 8 at both ends of the band member 7. Each metal fitting 8 is hooked on a boss 10 of a square pipe 9 provided on all sides of the screen member 1 (FIG. 1). In addition,
In a state where each metal fitting 8 is fixed to the boss portion 10, the screen member 1 is in a state of extending in all directions, and the tent material 6a on the front side does not loosen, and there is no effect on the projected image. There is no discomfort.

A pitching window 4 for letting a ball pass is provided at one portion of the screen member 1. The position of the pitching window 4 is different depending on whether the pitcher projected on the screen is a right pitcher or a left pitcher. FIG. 2 illustrates the position of the pitching window 4 when the right pitcher is projected.

A front window frame 11, a rear window frame 12, and an opening / closing plate 13 are integrally attached to the pitching window 4. As shown in FIG. 3, the front window frame 11 has a flange 11b extending in four directions from a hollow rectangular main body 11a, and the flange 11b is colored in the same color as the tent material 6a of the screen member 1. Have been. The rotation center shaft 14 is fixed across the main body 11a in the horizontal direction, and mounting holes 15 are formed on each side of the main body 11a.

The rear window member 12 has substantially the same shape as the front window member 11, and has a hollow rectangular main body portion 12a and a flange portion 12b extending in four directions. Also, the main body 1
A screw hole 16 is formed on each side of 2a corresponding to the mounting hole 15. The main body 12a of the back window member 12 is inserted inside the main body 11a of the front window member 11, and the two flanges 11b, 12b are connected to the screen with the main body 12a inserted inside the main body 11a. Member 1
Is to be pinched. After the main body 12a is inserted inside the main body 11a, the screws are screwed into the screw holes 16 through the mounting holes 15, and the back window member 12 and the front window member 11 are integrated.

The opening / closing plate 13 is composed of a plate member 17 colored in the same color as the tent member 6a of the screen member 1, and ear portions 18a and 18b formed by bending the left and right upper ends of the plate member 17. At the lower end of each of the ears 18a and 18b, a recess 19 for attachment is formed.
The opening / closing plate 13 is attached to the front window member 11 by hooking on the front window member 11. In addition, a fixing portion 20 is formed on one ear portion 18b so that a wire for opening the opening / closing plate 13 is fixed.

The plate member 17 is formed wider than the main body 11a of the front window member 11 and is also longer in the vertical direction. Therefore, when the open / close plate 13 is attached to the front window member 11, the main body 11a of the front window member 11 is completely hidden except for the upper side thereof. FIG. 4 shows the pitching window 4
Is a front view as viewed from the batter's side, and shows a state in which the opening / closing plate 13 covers the main body 11 a of the front window member 11. The flange 11b of the front window member 11 and the opening / closing plate 1
Since the third plate member 17 is colored in the same color as the tent member 6a, there is no concern about the position of the pitching window 4 from the batter's side.

FIG. 5A is a side view showing a state in which the front window frame 11, the rear window frame 12, and the opening / closing plate 13 are mounted. As shown, the front and back flange portions 11b and 12b sandwich the screen member 1 in which the shock absorbing material 21 is incorporated. An electromagnetic piston 22 is attached to the back window member 12. The electromagnetic piston 22 and the fixed portion 20 of the opening and closing plate 13 are connected by a wire 23 so that the opening and closing plate 13 is opened and closed according to the ON / OFF operation of the electromagnetic piston 22. FIG. 5B shows a state where the electromagnetic piston 22 is turned ON and the opening / closing plate 13 is opened.

The firing device 3 may be any appropriate one, but the device shown in FIG. 6 has a driving gear 3 rotating at a constant speed.
0, a first arm 31 that is rotated by being pressed by a convex portion 30 a protruding from the drive gear 30, a second arm 32 that is pin-connected to the first arm 31, and a second arm 32 that protrudes from the second arm 32. And a blocking bar 33 for preventing further rotation of the second arm 32 when it comes into contact with the contact portion 32a.

The drive gear 30 is rotated by a drive source (not shown). The drive gear 30 starts rotating in the direction of the arrow in the figure according to a command from the control device 5. The first arm 31 is urged by a first spring member 34 in a direction in which the spring contracts. The first arm 31 and the second arm 32 are connected by a second spring material 35, and the first and second arms are in a straight line in a natural state. After the rotation of the first gear 31 is stopped, only the first arm 31 rotates together with the drive gear 30 while opposing the second spring member 35.

Next, the operation of the hitting training apparatus having the above-described configuration will be described. First, when an operation such as charging a fee is performed on the batter's side, the control device 5
The operation of the drive source is started, and the rotation of the drive gear 30 is started. Note that the projector 2 starts projecting an image relating to the pitching operation of the pitcher at an appropriate timing. When the drive gear 30 starts rotating, the first arm 31 starts rotating in the same direction by being pressed by the projection 30a. Since the blocking bar 33 does not come into contact with the contact portion 32a for a while after the rotation, the first and second arms 3
1, 32 rotate integrally in a straight line.

After such a state continues, the blocking bar 33 eventually comes into contact with the contact portion 32a of the second arm, and further rotation of the second arm 32 is prevented. Then, the first
Only the first arm 31 continues to rotate while opposing the spring member 34 and the second spring member 35. Therefore, the angle between the first arm 31 and the second arm 32 is initially 180 degrees.
° gradually decreases, the angle between the two 90 °
When approaching (see FIG. 6B), the contact portion 32a gets over the blocking bar 33 due to the inclined posture of the contact portion 32a.

When the contact portion 32a gets over the blocking bar 33, the first and second spring members 24,
When the ball 35 contracts at a stretch, the second arm 32 operates like an elbow of a pitcher and a ball is thrown. Since the timing at which the ball is thrown (and its position) is clear in advance, the control unit 5 turns on the electromagnetic piston 22 in accordance with the timing, and the opening / closing plate 1
Release 3 Then, as the opening / closing plate 13 is opened, the ball passes through the pitching window 4 of the screen member 1 and flies toward the batter. It goes without saying that the timing at which the electromagnetic piston 22 is turned on and the opening / closing plate 13 is opened coincides with the timing at which the pitcher releases the ball in the image of the screen member 1.

Since the pitching device 3, the pitching window 4 and the projector 2 operate in conjunction with each other as described above, the batter watches the pitching operation of the pitcher projected on the screen member 1 to determine the timing of batting. Can do very good batting practice. The opened opening / closing plate 13 is connected to the electromagnetic piston 22.
Is closed by its own weight in accordance with the OFF operation. However, in order to close the opening / closing plate 13 more quickly, as shown in FIG.
A spring may be attached between the front window frame 11 and the front window frame 11. In this case, when the electromagnetic piston 22 is turned ON, the opening / closing plate 13 is opened against the spring. Therefore, when the electromagnetic piston 22 is turned OFF, the opening / closing plate 13 is immediately closed by the contraction force of the spring.

Although the embodiments of the present invention have been described above, the specific description does not particularly limit the present invention. For example, in the above description, the control device 5 turns on the electromagnetic piston 22 according to the elapsed time after the drive gear 30 has passed the reference position, but the position of the first arm 31 or the second arm 32 May be provided, and the opening and closing plate may be opened based on a signal from the position sensor.

[0023]

As described above, according to the present invention,
A striking practice device that can take a more appropriate striking operation can be realized.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a batting practice device according to an embodiment.

FIG. 2 is a front view of the screen member viewed from the back side.

FIG. 3 is a perspective view showing a member attached to the pitching window.

FIG. 4 is a front view of the position of the pitching window as viewed from the batter's side.

FIG. 5 is a side view showing a state of a pitching window.

FIG. 6 is a diagram illustrating the operation of the launching device.

FIG. 7 is a diagram illustrating a problem of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screen member 2 Projection device (projector) 4 Throwing window 3 Launching device 13 Opening / closing plate

Claims (5)

[Claims] A projection device for projecting a pitcher's pitching operation on a screen member; a pitching window formed in a part of the screen member; and a launching device for firing a ball toward a batter through the pitching window. A striking practice device wherein an opening / closing plate provided on a window is opened and closed in response to the operation of the launching device. 2. A front window frame, a back window frame, and the opening / closing plate are integrally attached to the pitching window, and the front window frame and the back window frame have a flange portion from a hollow rectangular main body. The striking practice device according to claim 1, wherein the striking training device is configured to extend in four directions and, when attached, the two flange portions sandwich the screen member. 3. The opening / closing plate is composed of a plate member colored in the same color as the screen member, and ear portions having left and right upper ends of the plate member bent, and a wire fixed to a part of the ear portion is provided. The hitting practice device according to claim 1, wherein the opening / closing plate is opened by pulling. 4. A band is sewn vertically and horizontally on the back side of the screen member, and ring-shaped metal fittings fixed to both ends of the band 7 are attached to pillars provided on all sides of the screen member. The hitting practice device according to any one of claims 1 to 3, which is fixed. 5. The screen member according to claim 1, wherein the screen member is configured by incorporating a shock absorbing material in a tent material, and the projection device projects a pitching operation from a batter's side. Blow practice equipment.