JP2004215734A - Practice device for ball game or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device enabling the ejection of a ball or the like by a single ejector without being restrained by a material, a diameter and a shape and enabling the ejection of the ball or the like in an optional curved path and at an optional speed. <P>SOLUTION: The device is constituted such that an ejection part is installed inside a ring frame, the ring frame is moved, the ejection part of the ball or the like is rotationally moved inside the ring frame, the rotation speed of respective rollers of the ejection part is controlled, the rollers are parallel moved by an air pressure driven cylinder and the cylinder is made to perform the role of an air damper. The device adds an optional rotation to the ejected ball or the like and flies it in an optional direction in the optional curved path without being restrained by the material, diameter and shape, etc., of the ball or the like. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is capable of injecting without being restricted by the diameter, shape, and material of the ball and the like, and is capable of arbitrarily rotating the injected ball and the like and flying in a curved trajectory. Related to equipment used for
[0002]
[Prior art]
Conventional injection devices for balls and the like use a special injection device depending on the material, diameter and shape as shown in JP-A-8-1311600 and 63-135184. Further, since a roller or the like at a portion where the ball is ejected is driven by a hydraulic motor or an electric motor, it is difficult to eject the ball at a low speed.
Further, the conventional injection device for a ball or the like is the same injection device, and it is possible to apply only one of rotation in the left and right direction or rotation in the vertical direction (drive rotation and slice rotation) to the ball at the time of ball injection.
Also, as shown in JP-A-8-1311600, JP-A-9-253263, and 63-135184, a young child can use a ball or the like having a high elasticity and a large deformation amount used for practicing ball games and the like. Injection was difficult.
[0003]
[Patent Document 1]
63-135184
[Patent Document 2]
JP-A-8-131600 [Patent Document 3]
JP-A-9-253263
[0004]
[Problems to be solved by the invention]
An object of the present invention is to make it possible to inject a ball or the like with a single injection device without being restricted by a material, a diameter and a shape, and to inject a ball or the like from a high speed to a low speed with the same injection device. . In particular, since a ball or the like having a high elasticity and a large deformation amount can be easily ejected, it is possible to provide training for a beginner and a young child in general in ball game training.
[0005]
In addition, at the time of injection of the ball or the like, the ball or the like is rotated, and without being restricted by the material, diameter, shape, etc. of the ball or the like, arbitrary rotation is applied to the ball or the like to be ejected, and It is to make it possible to fly in a curved path.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the injection part (FIG. 3) of the present invention is installed in the ring frame (5) such that the four corners of the injection part (FIG. (3)) come into contact with the roller with fixing device (7). As a result, the injection portion (FIG. 3) becomes rotatable along the ring frame (5). Further, the angle of the ring frame (5) can be adjusted to an arbitrary angle by a rotary actuator (air-driven rotary cylinder) diagram (6) installed on both sides of the ring frame (5).
[0007]
The distance between the rollers (3) in the injection portion (FIG. 3) is adjusted by a pneumatic drive cylinder (1) to match the diameter and shape of the balls and the like. Further, since the inside of the pneumatic drive cylinder (1) is filled with pressurized air, it plays a role of an air damper. The effect of this air damper absorbs the manufacturing errors and tolerances of individual balls and the like, and adjusts the distance between the rollers (3) so as to conform to the shape of the balls and the like regardless of the manufacturing errors and tolerances. Injection is possible without being restricted by the material, diameter, shape and the like.
[0008]
Since the roller (3) at the injection portion is rotationally driven by the air motor (4), it is possible to adjust the flow rate and pressure of the air and generate a sufficient torque on the roller (3) at the injection portion. By controlling the rotation speed of each roller (3) of the injection part (Fig. 3), the ball is rotated without being restricted by the material, diameter and shape of the ball, etc., and the speed of the ball is increased. Easy to control from low to low speed, enabling injection of balls etc.
[0009]
Rotary actuators (air-driven rotary cylinders) on both sides of the ring frame adjust the angle of the ring frame, and the injection part such as a ball (FIG. 3) rotates and moves in the ring frame. By controlling the rotation speed of each roller (3) of the injection portion (FIG. 3), any rotation can be applied to the injected ball and the like without being restricted by the material, diameter and shape of the ball and the like. In addition, it is possible to fly a ball or the like in an arbitrary direction and an arbitrary curved trajectory.
[0010]
Since the power is unified to pneumatic pressure and the power source is a single pneumatic pressure generator (compressor) (8), only a power transmission device (pneumatic piping, etc.) is required and a rational design is possible.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
The apparatus is provided with an injection part (FIG. 3) in a ring frame (5) such that the four corners of the injection part (FIG. 3) are in contact with the roller with fixing device (7).
The injection part (FIG. 3) has a pair of rollers installed in parallel, and one or both rollers (3) are pneumatically driven cylinders (1) mounted above and below the roller (3). And the linear motion bearing (2) enable smooth parallel movement (the figure shows the case where a pneumatic cylinder is attached to one of the rollers). With the stroke of the drive cylinder (3), the distance between the rollers (3) can be adjusted to correspond to balls of any diameter and shape used in various ball games, etc., and the inside of the pneumatic drive cylinder (1) When the pressured air flows in, it plays the role of an air damper. By this air damper action, manufacturing errors and tolerances of balls and the like can be absorbed, and manufacturing errors of individual balls etc. It can emit a relationship without balls or the like in tolerance. At the same time, the air damper prevents damage to the injection device due to recoil at the time of injection of a ball or the like.
[0012]
The contact pressure between the roller (3) and the ball can be adjusted by installing a speed controller (valve) that controls the air flow rate and pressure at the entrance and exit of the pneumatic drive cylinder (1) installed above and below the roller. Therefore, the ball or the like can be ejected without being restricted by the material, diameter, shape, or the like of the ball or the like.
[0013]
A rotary actuator (pneumatic rotary cylinder) (6) installed on both sides of the ring frame allows the injection part (Fig. 3) of the ball or the like to be adjusted to an arbitrary angle, thereby injecting the ball or the like at an arbitrary angle in the vertical direction. enable.
[0014]
The roller (3) of the injection portion (FIG. 3) of a ball or the like is provided with a rotary drive to the roller (3) by using an air motor (4) powered by air pressure to adjust the air flow rate and pressure. It is possible to generate a necessary and sufficient torque for injecting a ball or the like to the roller (3) of the ejection portion (FIG. 3), and it is possible to control the speed of the ball or the like from a low speed to a high speed and easily inject.
[0015]
A speed controller (valve) for adjusting the air flow rate and pressure and controlling the rotation speed of the roller (3) is installed at the inlet and outlet of each air motor (4). This makes it possible to control each of the rollers (3) at an arbitrary rotational speed, so that the roller is ejected while rotating the ejected ball or the like, so that the ball can fly in an arbitrary curved orbit in the horizontal direction. It becomes possible.
[0016]
In the apparatus of the present invention, the movement of the ring frame (5) by the rotary actuator (pneumatic rotary cylinder) (6) on both sides of the ring frame (5) and the ring frame (5) are installed in the ring frame. By controlling the rotational speed of the rollers (3) of the injection portion (FIG. 3) by rotating the injection portion (FIG. 3) of the ball and the like in the ring frame, the material, diameter, Without being restricted by the shape and the like, it is possible to apply an arbitrary rotation to an ejected ball or the like and fly in an arbitrary direction and an arbitrary curved trajectory.
[0017]
【The invention's effect】
A ball or the like having an arbitrary diameter, shape, or material can be injected, and the injection device of the present invention can practice a plurality of types of ball games or the like with one training device, so that it can be performed effectively and economically. Also, since a ball with a large deformation amount can be injected, it can be used for training for young children.
[0018]
[Brief description of the drawings]
FIG. 1 is a front view of an overview of a practice apparatus for ball games and the like according to the present invention; FIG. 2 is a side view of an overview of a practice apparatus for ball games and the like according to the present invention; FIG. Outline view of injection part [Explanation of reference numerals]
DESCRIPTION OF SYMBOLS 1 Pneumatic drive air cylinder 2 Linear bearing 3 Roller 4 Air motor 5 Ring frame 6 Roller actuator 7 Roller with fixing device 8 Compressor (including air tank)

Claims (3)

An injection part such as a ball is installed in a ring frame, and the injection part has a pair of rollers installed in parallel, and one or both rollers are parallelized by a pneumatic drive cylinder mounted above and below the rollers. A training apparatus for ball games or the like, characterized in that a ball or the like is ejected by being movable and adjusting the distance between rollers to an arbitrary diameter and shape of a ball or the like. A speed controller (valve) for adjusting the air flow rate and pressure and controlling the rotation speed of each roller is installed in each air path at the entrance and exit of the air motor attached to each roller. Claims: 1. A controllable rotational speed makes it possible to fly an ejected ball or the like in an arbitrary curved trajectory without being restricted by the material, diameter and shape of the ball and the like. Practice equipment for ball games, etc. as described. By installing it in the ring frame, the injection part can be rotated and moved along the ring frame, and the angle of the ring frame can be set to any angle by rotary actuators (air-driven rotary cylinders) installed on both sides of the ring frame. A training device for ball games and the like, which can be adjusted, can apply an arbitrary rotation to the ball and the like, and can fly the ball and the like in an arbitrary direction and an arbitrary curved trajectory.

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