KR101721558B1 - A ball guiding and supplying device of pitching machine for screen baseball - Google Patents

Abstract

According to the present invention, disclosed is a ball guiding and supplying apparatus of a pitching machine for screen baseball, comprising: a ball guide unit; and a ball supply unit connected to the opposite side of a ball supply direction in a ball supply standby region of the ball guide unit to supply a ball queueing in the ball supply standby region. The ball guide unit includes an on-time discharge member attached to an inlet of the ball supply standby region to discharge the ball to the ball supply standby region at a time point when the ball is required. According to the present invention, a ball moved in the ball standby region is not pushed by adjacent balls, and a discharge shaft is disposed in a right position to push the center of the ball, and thus pitching reliability of supplied balls is enhanced. Moreover, even if the ball is vertically moving according to angle adjustment of the pitching machine, the ball placed in the ball supply standby region is not moved inside by gravity and, can be correctly guided in a straight line without colliding to an inner wall.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ball guiding and feeding device for a screening baseball pitching machine,

The present invention relates to a ball guiding and feeding apparatus for a pitching machine, and more particularly, to a ball guiding and feeding apparatus for a pitching machine, And more particularly, to a ball guide and a feeding device for a pitching machine for a screen baseball which can improve the reliability of a ball supplied by temporarily stopping or supplying the ball.

In general, pitching machines are known in four categories.

That is, a pitching machine using a spring articulated arm mechanism, at least one rotating wheel or rotating, a pitching machine using a pair of co-wheels, a pressure-type pitching machine using hydraulic or pneumatic, and a pitching using a rotatable covering and a branching rotating disk A machine is known.

An example of a pitching machine that uses a spring mechanism to throw a ball is a pitching machine for an automatic conversion vibrating ball throwing device.

Recently, most commercially available pitching or pitching machines use one or two co-rotating wheels that are used to throw balls that are introduced into a nip between rotating wheels or between a plate and a single rotating cavity wheel.

A pitching machine using a rotating co-wheel pair can be subjected to a variety of different pitches at various different speeds, such as fastballs, curve balls, screw balls, and the like.

In the pitching type, the change of the pitch and the restraint is achieved by changing the throwing angle and the throwing speed of the ball according to the rotating speed of the individual wheel and the attitude of the wheel.

Conventionally, pitching machines have used gravity-based loading devices and horizontal-standing launching devices for regular discharge of balls.

That is, in a loading apparatus using general gravity, a plurality of balls are kept in close contact with each other, and thus, even if any one of the balls is placed at a loading position, the loading apparatus moves in a state in close contact with the side ball.

Therefore, the ball, which has reached the ball supply waiting area, is pushed by the loaded balls, and the discharge shaft is disposed at a shifted position rather than a proper position for pushing the center of the ball.

In addition, when the pitching machine is tilted downwardly while being angled upward and downward in the step before feeding the ball, the ball is caused to roll downward due to gravity, so that a desired pitch can not be reliably supplied.

KR 10-1579903 B1

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ball dispensing apparatus for a ball dispensing apparatus, And to provide a ball guide and a feeding device of a pitching machine for a screen baseball which is equipped with an opening / closing device which is opened and closed by an elastic force at an outlet so as to temporarily stop the ball waiting for supply and supply the ball only by a constant force.

According to an aspect of the present invention, there is provided a ball guide and feeding device for a pitching machine for a screen baseball, comprising: a ball guide; And a ball supply unit connected to the opposite side of the ball supply direction of the ball supply waiting area of the ball guide unit to supply a ball waiting in the ball supply waiting area, And a time discharging member for discharging the ball to the ball supply waiting area at a required time.

In order to achieve the above object, the ball guide unit of the ball guide and supply apparatus of a pitching machine for screen baseball according to the present invention has a hollow rectangular columnar shape having a predetermined inclination and sequentially moving the ball loaded therein by gravity A first ball guide portion; And a ball supply unit for supplying a ball by feeding the ball supply unit after temporarily discharging the ball discharged to the ball supply waiting area at a required time connected vertically in the first ball guide unit and the ball supply waiting area, And a second ball guide portion in the form of a hollow square column.

In order to achieve the above object, the ball guide unit of the ball guide and supply unit of the pitching machine for screen baseball according to the present invention is positioned above the inlet of the ball supply waiting area, lifting and set down the regular discharge member by a predetermined hydraulic pressure And a folding and publishing lifting section.

To achieve the above object, the present invention provides a ball guide and feeding device for a pitching machine for screen baseball, comprising: a first hydraulic cylinder for supplying the predetermined hydraulic pressure; And a lifting shaft having one side connected to the regular discharge member and the other side connected to the first hydraulic cylinder, the piston moving by the supplied predetermined hydraulic pressure.

In order to achieve the above object, the ball guiding and feeding device of the pitching machine for screen baseball according to the present invention is positioned at the exit of the ball supply waiting area and is opened / closed by an elastic force, An opening / closing device for temporarily stopping the ball or supplying the ball by supplying the ball supply portion; And a pair of guide protrusions protruding upward from an inner bottom surface of the second ball guide portion, wherein the guide protrusions are formed along the longitudinal direction of the second ball guide portion so as to guide the ball .

In order to achieve the above object, the ball guide and feeding device of the pitching machine of the pitching machine for screen baseball according to the present invention is characterized in that the plurality of grooves cut in the direction from the inner periphery to the outer periphery are formed radially along the inner periphery, And a ring-shaped rubber plate closely attached to an inner wall of the second ball guide portion.

In order to achieve the above object, the ball guide and feeding device of the pitching machine for a screen baseball according to the present invention comprises a plurality of grooves formed in one side surface in the longitudinal direction and formed along one side surface thereof, And a side surface of the second ball guide portion is in close contact with one of the inner walls of the second ball guide portion.

In order to accomplish the above object, the ball guide and feeding device of the pitching machine for screen baseball according to the present invention is characterized in that a spring is coupled to an upper part of a rectangular folding type iron plate.

In order to achieve the above object, the guide protrusion of the ball guide and supply device of the pitching machine for screen baseball according to the present invention is characterized by a width of 4.5 cm to 5.5 cm and a width of 1.5 cm to 2.5 cm.

In order to achieve the above object, the present invention provides a ball guide and feeding device for a pitching machine for a screen baseball, comprising: a second hydraulic cylinder for supplying a predetermined hydraulic pressure; A discharge shaft having one side connected to the pushing portion and the other side connected to the second hydraulic cylinder and piston-driven by the supplied predetermined hydraulic pressure; And a disc-shaped pushing portion mounted on one end of the discharge shaft to push the ball.

In order to achieve the above object, the present invention provides a ball guide and feeding device for a ball pitching machine for screen baseball, wherein the ball feeding part comprises: an electric cylinder operated by a predetermined electric supply; A discharge shaft having one side connected to the pushing portion and the other side connected to the electric cylinder and piston-operated by the supplied electric power; And a disc-shaped pushing portion mounted on one end of the discharge shaft to push the ball.

In order to accomplish the above object, the present invention provides a ball guide and feeding device for a pitching machine for screen baseball, wherein the regular discharge member is a rectangular plate.

In order to achieve the above object, the present invention provides a ball guide and feeding device of a pitching machine for screen baseball, wherein the time discharging member is a propeller-shaped member and is rotated about a rotational axis of a propeller provided on an upper portion of the first ball guide .

In order to attain the above object, the present invention provides a ball guide and feeding device for a pitching machine for a screen baseball having a hook shape and a hook rotation shaft provided on the first ball guide portion as a center axis, As shown in FIG.

Specific details of other embodiments are included in the " Detailed Description of the Invention "and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention and the manner of achieving them will be apparent by reference to various embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the configurations of the embodiments described below, but may be embodied in various other forms, and each embodiment disclosed in this specification is intended to be illustrative only, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

According to the present invention, since the balls moved to the ball supply waiting area are not pushed by the adjacent balls and the balls are disposed in the right position, the discharge shaft pushes the center of the balls, thereby improving the reliability of the balls supplied.

In addition, even when the pitching machine is moved up and down according to the angle adjustment, the ball located in the ball supply waiting area does not move due to gravity, and the ball can move accurately through the guide line without collision of the inner wall at the time of ball supply.

1 is a plan view of a ball guide and feeding device of a pitching machine for screen baseball according to the present invention.
2 (a) and 2 (b) are sectional views of the ball guide 100 and the ball guide 300 and the discharge and lifting part 330 in the ball guide and supply device shown in FIG.
3 is a perspective view of the second ball guide unit 320 shown in FIG.
4 (a) and 4 (b) are sectional views for explaining the operation of the ball guide 100 and the ball guide 300 in the ball guide and supply apparatus shown in FIG.
FIG. 5 is a sectional view of the ball guide and the first ball guide unit 310 and the regular discharge member 312 in the supply apparatus shown in FIG. 1 according to the second embodiment.
6 is a sectional view of the ball guide and the first ball guide unit 310 and the regular discharge member 312 in the supply apparatus shown in FIG. 1 according to the third embodiment.
Figs. 7 (a) and 7 (b) are front views of another embodiment 322 ', 322 of the ball guide and feed opening device 322 shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention in detail, terms and words used herein should not be construed as being unconditionally limited in a conventional or dictionary sense, and the inventor of the present invention should not be interpreted in the best way It is to be understood that the concepts of various terms can be properly defined and used, and further, these terms and words should be interpreted in terms of meaning and concept consistent with the technical idea of the present invention.

That is, the terms used herein are used only to describe preferred embodiments of the present invention, and are not intended to specifically limit the contents of the present invention, It should be noted that this is a defined term.

Furthermore, in this specification, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise, and it should be understood that they may include singular do.

Where an element is referred to as "comprising" another element throughout this specification, the term " comprises " does not exclude any other element, It can mean that you can do it.

Further, when it is stated that an element is "inside or connected to" another element, the element may be directly connected to or in contact with the other element, A third component or means for fixing or connecting the component to another component may be present when the component is spaced apart from the first component by a predetermined distance, It should be noted that the description of the components or means of 3 may be omitted.

On the other hand, it should be understood that there is no third component or means when an element is described as being "directly connected" or "directly connected" to another element.

Likewise, other expressions that describe the relationship between the components, such as "between" and "immediately", or "neighboring to" and "directly adjacent to" .

In this specification, terms such as "one side", "other side", "one side", "other side", "first", "second" Is used to clearly distinguish one element from another element, and it should be understood that the meaning of the element is not limited by such term.

It is also to be understood that terms related to positions such as "top", "bottom", "left", "right" in this specification are used to indicate relative positions in the drawing, Unless an absolute position is specified for these positions, it should not be understood that these position-related terms refer to absolute positions.

Furthermore, in the specification of the present invention, the terms "part", "unit", "module", "device" and the like mean a unit capable of handling one or more functions or operations, Or software, or a combination of hardware and software.

As used herein, the term "ball supply waiting area" means an area in the ball guide, which is temporarily waiting before the ball is supplied and supplied to the first to third wheels, S, respectively.

In this specification, the same reference numerals are used for the respective components of the drawings to denote the same reference numerals even though they are shown in different drawings, that is, the same reference numerals throughout the specification The symbols indicate the same components.

In the drawings attached to the present specification, the size, position, coupling relationship, and the like of each constituent element of the present invention may be partially or exaggerated or omitted or omitted for the sake of clarity of description of the present invention or for convenience of explanation May be described, and therefore the proportion or scale may not be rigorous.

Further, in the following description of the present invention, a detailed description of a configuration that is considered to be unnecessarily blurring the gist of the present invention, for example, a known technology including the prior art may be omitted.

FIG. 1 is a plan view of a ball guide and feeding device for a pitching machine for screen baseball according to the present invention. The ball guide and feeding device of the pitching machine for screen baseball includes a ball feeding part 100, a wheel part 200, (300) and a discharge plate lifting unit (330), and the wheel unit (200) includes first to third wheels (210 to 230).

2 (a) and 2 (b) are cross-sectional views of the ball guide 100 and the ball guide 300 and the discharge and lifting part 330 in the ball guide and supply device shown in FIG. 1, 2B shows a state in which the first ball guide unit 310 is closed by the operation of the discharge and lifting unit 330. FIG. And shows the state in which the timely discharge member 312 is opened.

At this time, the boat publishing lifting unit 330 senses a required time point or operates at a predetermined time point.

That is, when a predetermined sensor senses movement of the ball in the first ball guide unit 310 and outputs an operation start signal or a predetermined counter counts a predetermined time and outputs an operation start signal, (330) starts operation in response to the operation start signal. The operation of the folding and publishing lifting unit 330 will be described later in detail.

The ball supply unit 100 is connected to the ball supply waiting area S of the ball guide unit 300 to supply the ball 50 ' ').

The ball feeding part 100 includes a pushing part 110 in the form of a disk formed to supply the ball 50 'effectively, one end connected to the pushing part 110 and the other end connected to the second hydraulic cylinder 140, And a discharge shaft 120 that performs a piston movement by a predetermined hydraulic pressure supplied from the hydraulic cylinder 140.

The ball guide unit 300 includes first and second ball guide units 310 and 320 and an urging member 312. The second ball guide unit 320 includes an opening and closing device 322 and a guide protrusion 324 .

More specifically, the ball guide 300 includes two hollow square columns connected in a vertically spaced manner. The ball guide 50 is sequentially guided while receiving the ball 50 therein to temporarily stop the ball 50 , And discharges it to the ball supply waiting area (S) at a required time.

The boat publishing lifting section 330 includes a first hydraulic cylinder 334 and a lifting shaft 332. [

3 is a perspective view of the second ball guide unit 320 shown in Fig. 2 and includes an opening / closing device 322 and a guide projection 324, and the opening / closing device 322 has a spring 323. Fig.

4 (a) and 4 (b) are sectional views for explaining the operation of the ball guide 100 and the ball guide 300 in the ball guide and feeding device shown in FIG. 1, 4B shows a state in which the opening and closing device 322 in the second ball guide part 320 is closed. (312) is opened.

The second ball guide portion 320 includes an opening and closing device 322 and a guide projection 324 and the ball supply portion 100 includes a pushing portion 110, a discharge shaft 120, and a second hydraulic cylinder 140 Respectively.

5 is a cross-sectional view of a second embodiment of the ball guide and feed device in FIG. 1, the first ball guide portion 310 and the regular discharge member 312, wherein the discharge member 312 ' 314).

6 is a cross-sectional view of a third embodiment of the ball guide and dispensing apparatus first ball guide portion 310 and the regular dispensing member 312 shown in FIG. 1, wherein the regular dispensing member 312 " 316).

Figs. 7 (a) and 7 (b) are front views of the ball guide shown in Fig. 1 and other embodiments 322 'and 322 of the opening and closing device in the supplying apparatus.

1 to 7, detailed functions of the ball guide and feeding device of the pitching machine for screen baseball according to the present invention will be described.

The hourly discharge member 312 is a rectangular iron plate and is positioned at one end of the first ball guide unit 310, that is, at a portion in contact with the inlet of the ball supply waiting area S, (S) and the ball located in the ball supply waiting area (S) among the balls that are loaded in the ball supply standby area (S).

Thereby allowing the ball 50 loaded on the first ball guide unit 310 to be discharged on a regular basis, that is, at a required time, to the ball supply waiting area S.

At this time, the regular discharge member 312 can move up and down the first ball guide unit 310. In order to realize this operation, as shown in FIG. 2 (the first embodiment of the regular discharge member 312) A discharge plate lifting unit 330 may be separately provided at an upper portion of the inlet of the ball supply waiting area S of the first ball guide unit 310 to move the regular discharge member 312 up and down.

The lifting shaft 332 in the back-and-forth lifting section 330 moves upward and downward by a predetermined hydraulic pressure generated in the first hydraulic cylinder 334 to lift and set-down the regular discharging member 312.

Here, the configuration for lifting and down-setting the regular discharge member 312 of the present invention may be applied to a motor, a combination of a leg and a pinion gear, a combination of being closed by a cam, etc. in addition to the method by hydraulic pressure.

The discharge and lifting part 330 may be applied to other embodiments to move in the left and right direction of the first ball guide part 310. The discharge and lifting part 330 at this time may be a part of the first ball guide part 310 As shown in FIG. 5 (the second embodiment 312 'of the regular discharge member) and FIG. 6 (the third embodiment of the regular discharge member 312')) In the case of a propeller shape or a hook (aka snap) shape, the discharge and lifting portion 330 is not required.

As shown in FIG. 3, the opening / closing device 322 is a rectangular folding type iron plate, and a spring 323 is coupled to the upper part thereof for hinge coupling. And is located at the outlet of the supply waiting area (S).

4 (a), the opening / closing device 322 is closed by the elastic force of the spring 323 to temporarily stop the ball 50 'discharged from the first ball guide portion 310, the ball 50 'is opened by the pushing action of the ball feeder 100, as shown in FIG.

At this time, the opening / closing device 322 temporarily stops the ball 50 'so that the ball 50' is not rolled by the gravity in the second ball guide 320.

7 (a), a ring-shaped rubber plate having a plurality of grooves cut along the outer peripheral portion in the direction from the inner peripheral portion to the inner peripheral portion is formed on the outer peripheral portion of the second ball 322 ' And is in close contact with the four inner walls of the guide portion 320.

More specifically, another embodiment 322 'of the opening and closing device is made of a ring-shaped rubber plate, and a groove is formed at a predetermined distance in the direction from the inner periphery to the outer periphery of the opening and closing device. 322 '. < / RTI >

Since the cutting force of the ball varies according to its length, it can be appropriately changed according to the size of the ball, the desired fixing force, and the like.

As shown in Fig. 7 (b), another embodiment 322 of the opening / closing apparatus is a rectangular rubber plate having a plurality of grooves cut along one side in the longitudinal direction on one side thereof, Is in close contact with one of the four inner walls of the second ball guide portion (320).

The guide protrusion 324 is in the form of a rail extending in the longitudinal direction of the second ball guide portion 320 and disposed on the inner bottom of the second ball guide portion 320.

As shown in FIGS. 2 (a) and 2 (b), when the first ball guide 310 is inclined, the rightmost ball moving rightward in the first ball guide 310 is moved by gravity 2 ball guide portion 320 side.

At this time, the guide protrusion 324 has a proper height so that the ball 50 is naturally seated when the ball 50 moves out of the first ball guide portion 310 and moves to the second ball guide portion 320, and the ball 50 ' It is preferable to have an appropriate width so as not to be detached laterally after being seated.

That is, the width of the guide protrusion 324 can be set to 4.5 cm to 5.5 cm, preferably 5 cm, and the width can be set to 1.5 cm to 2.5 cm, preferably 2 cm.

This serves to guide the ball 50 'straightly without colliding with the inner wall of the second ball guide 320 by sliding the ball 50' over the guide protrusion 324.

The operation of the ball guide and feeding device of the pitching machine for screen baseball of the present invention will be described with reference to FIGS. 1 to 7 as follows.

As shown in FIG. 2 (a), since the first ball guide unit 310 has a predetermined inclination, the ball loaded on the first ball guide unit 310 is moved to the right by gravity.

When the ball moves rightward in the first ball guide unit 310 and the rightmost ball contacts the regular discharge member 312, the balls stop moving.

Thereafter, as shown in FIG. 2 (b), the lifting shaft 332 in the back and forth lifting section 330 moves upward by the piston by the predetermined hydraulic pressure generated in the first hydraulic cylinder 334, Lifting the member 312 causes the forth discharge member 312 to move upward.

At this time, as the right end of the first ball guide unit 310 is opened, the rightmost ball 50 which has been stopped moves to the right and moves to the ball supply waiting area S in the second ball guide unit 320 .

At the same time, when the lifting shaft 332 in the back-and-forth lifting part 330 moves downward by a predetermined hydraulic pressure generated in the first hydraulic cylinder 334 to set down the regular discharge member 312, 312 move downward.

At this time, as the right end of the first ball guide unit 310 is closed again, the second right ball 50-1 moved to the right by the gravity moves to the right, and when the ball touches the regular discharge member 312, Stop.

Here, the regular discharge member 312 may have a plate shape as shown in Figs. 1 and 2, or may be a propeller shape or a hook shape as shown in Figs. 5 and 6.

5, a propeller rotating shaft 314 is provided above the first ball guide unit 310 and a predetermined driving motor (not shown) is connected to the propeller rotating shaft 314, A predetermined driving motor (not shown) is connected to the hook rotating shaft 316 and a hook rotating shaft 316 is provided on the ball guide unit 310 so that the operation of the driving motor is controlled by a control unit Moves the balls moving to the right side to the ball supply waiting area (S) or stops the ball.

At this time, the controller may control the operation of the driving motor by detecting the required time, or may perform the sequence control to sequentially operate the driving motor at a predetermined time.

That is, when a predetermined sensor senses movement of the ball in the first ball guide unit 310 and outputs an operation start signal, or when a predetermined counter counts a predetermined time and outputs an operation start signal, And starts operation in response to the start signal.

In this way, in the conventional art, the ball 50 'moved to the ball supply waiting area S inside the second ball guide portion 320 is pushed by the adjacent left ball 50, A problem that the reliability of the pitch is deteriorated can be solved.

4 (a), when the ball is moved from the first ball guide portion 310 to the ball supply waiting region S in the second ball guide portion 320, Is normally closed by the elastic force of the spring 323 and the ball 50 'is temporarily stopped.

The ball 50 'does not move arbitrarily within the second ball guide 320 even if the pitching machine moves up and down.

Thereafter, as shown in FIG. 4 (b), when the discharge shaft 120 is pushed and extended in the right direction by the predetermined oil pressure of the second hydraulic cylinder 140, the ball is waiting in the ball supply waiting area S And supplies the ball 50 with the ball.

The opening and closing device 322 is opened by the spring force of the spring 323 and the hinge action so that the ball 50 moves within the second ball guide portion 320 to rotate the first to third wheels 210 to 230, As shown in FIG.

At this time, instead of the second hydraulic cylinder 140 operated by hydraulic pressure, an electric cylinder operated by electric power supply is also possible.

The ball 50 'supplied by the pushing action of the discharge shaft 120 collides with the inner wall of the second ball guide portion 320 by the guide of the guide protrusion 324 formed on the inner bottom of the second ball guide portion 320 And is moved to the central portion of the first to third wheels 210 to 230 in the straight direction.

As described above, the ball guide and supply device of the pitching machine for screen baseball of the present invention mounts a time discharging member at the inlet of the ball supply waiting area to block the ball being ball-guided and the ball in the ball supply waiting time, And an opening / closing device that is opened and closed by an elastic force is installed at the exit of the ball supply waiting area to temporarily stop or supply the discharged ball.

Through this, the balls moved to the ball supply waiting area are not pushed by the adjacent balls and the balls are disposed in the right position, so that the discharge shaft pushes the center of the balls, thereby improving the reliability of the balls supplied.

In addition, even when the pitching machine is moved up and down according to the angle adjustment, the ball located in the ball supply waiting area does not move due to gravity, and the ball can move accurately through the guide line without collision of the inner wall at the time of ball supply.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

In addition, since the present invention can be embodied in various other forms, the present invention is not limited by the above description, and the above description is intended to be a complete description of the present invention, It will be understood by those of ordinary skill in the art that the present invention is only provided to fully inform the person skilled in the art of the scope of the present invention and that the present invention is only defined by the claims of the claims.

100: ball supply part
200:
210 to 230: First to third wheels
300: Ball guide
310: first ball guide portion
312, 312 ', 312'':
320: second ball guide portion
322: Switchgear
330: Boat publishing lifting section
S: ball supply waiting area

Claims (14)

A ball guide; And
And a ball supply unit connected to the opposite side of the ball supply direction of the ball supply waiting area of the ball guide unit to supply a ball waiting in the ball supply waiting area,
The ball guide
A time discharging member installed in contact with the inlet of the ball supply waiting area and sequentially discharging the balls moving adjacent to each other to the ball supply waiting area at a required time;
A first ball guide portion for moving the ball loaded therein; And
And a second ball guide unit connected to the first ball guide unit and the ball supply waiting area to supply balls by supplying the ball supply unit,
The second ball guide portion
And an opening / closing device located at an outlet of the ball supply waiting area for temporarily stopping the ball discharged from the first ball guide part or supplying the ball by supplying the ball supply part,
The opening /
A plurality of grooves cut in the direction of the outer peripheral portion from the inner peripheral portion are radially formed along the inner peripheral portion and the outer peripheral portion is a ring-shaped rubber plate closely attached to the inner wall of the second ball guide portion,
A rectangular rubber plate having a plurality of grooves cut along a longitudinal direction at one side thereof along the one side and a side opposite to the one side being in close contact with one of the inner walls of the second ball guide,
Wherein a spring is coupled to an upper portion of the rectangular foldable iron plate,
Ball guide and feeding device for pitching machine for screen baseball.
The method according to claim 1,
The first ball guide portion has a hollow rectangular column shape having a predetermined inclination and sequentially moving the balls loaded therein by gravity,
The second ball guide unit may be vertically connected to the first ball guide unit and the ball supply waiting area to receive a ball discharged to the ball supply waiting area at a required time, temporarily stop the ball, Which is in the form of a hollow square pillar,
Ball guide and feeding device for pitching machine for screen baseball.
3. The method of claim 2,
The ball guide
A discharge plate lifting unit positioned above the inlet of the ball supply waiting area to lift and set down the regular discharge member by a predetermined hydraulic pressure;
Further comprising:
Ball guide and feeding device for pitching machine for screen baseball.
The method of claim 3,
The folding and publishing lifting section
A first hydraulic cylinder for supplying the predetermined hydraulic pressure; And
A lifting shaft having one side connected to the regular discharge member and the other side connected to the first hydraulic cylinder and piston-driven by the supplied predetermined hydraulic pressure;
And a control unit
Ball guide and feeding device for pitching machine for screen baseball.
3. The method of claim 2,
Wherein the opening / closing device is located at an outlet of the ball supply waiting area, and is opened / closed by an elastic force,
The second ball guide portion may further include a pair of guide projections protruding upward from an inner bottom surface of the second ball guide portion,
Wherein the guide protrusions are formed along the longitudinal direction of the second ball guide portion to be spaced from each other to guide the ball.
Ball guide and feeding device for pitching machine for screen baseball.
delete delete delete 6. The method of claim 5,
The guide protrusion
Wherein the width of one pair is from 4.5 cm to 5.5 cm and the width of each pair is from 1.5 cm to 2.5 cm.
Ball guide and feeding device for pitching machine for screen baseball.
The method according to claim 1,
The ball feeder
A second hydraulic cylinder for supplying a predetermined hydraulic pressure;
A discharge shaft having one side connected to the pushing portion and the other side connected to the second hydraulic cylinder and piston-driven by the supplied predetermined hydraulic pressure; And
A pushing portion mounted on one end of the discharge shaft to push the ball;
And a control unit
Ball guide and feeding device for pitching machine for screen baseball.
The method according to claim 1,
The ball feeder
An electric cylinder operated by a predetermined electric supply;
A discharge shaft having one side connected to the pushing portion and the other side connected to the electric cylinder and piston-driven by the supplied electricity; And
A pushing portion mounted on one end of the discharge shaft to push the ball;
And a control unit
Ball guide and feeding device for pitching machine for screen baseball.
The method of claim 3,
The urgent discharge member
Characterized in that it is a steel plate material having a rectangular shape,
Ball guide and feeding device for pitching machine for screen baseball.
3. The method of claim 2,
The urgent discharge member
Wherein the propeller shaft is rotatable about a rotational axis of a propeller provided on an upper portion of the first ball guide portion as a central axis.
Ball guide and feeding device for pitching machine for screen baseball.
3. The method of claim 2,
The urgent discharge member
Wherein the first ball guide portion is rotated by a predetermined angle about the hook rotation axis provided at the upper portion of the first ball guide portion as a central axis,
Ball guide and feeding device for pitching machine for screen baseball.

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