KR101600761B1 - volley ball practice device - Google Patents

Abstract

Provided is an apparatus for volleyball practice, capable of continuously and efficiently practicing the serve-receiving of a practice ball, flying from the counter court through serve, and an attack practice of strongly striking the practice ball, falling from top to bottom, to the counter court. The apparatus for volleyball practice comprises a field, a practice ball launch device, a ball collector, guide rails, a pillar, and a ball distributor. The field is composed of the inclined bottom surface, and a transfer valley which is downwardly inclined from one corner of the end line of the field toward the other corner thereof. The practice ball launch device is positioned at the corner of the field, and launches a practice ball, which is received in a ball receptor, toward the counter court of the field. The ball collector is vertically installed at the downward end portion of the transfer valley. The ball collector transfers practice balls, which are collected at the entrance of a lower portion of a cylindrical body, to the top portion thereof, and drops the practice balls above and around the practice ball launch device through a discharge port, which is installed at a lateral surface of the top portion of the ball collector to be able to rotate. The guide rails are installed in parallel with and separated from a sideline of the field. The top of the pillar is higher than a net pole installed in the field, and roller wheels, which are mounted on the guide rails, are installed on the bottom surface of the pillar, so the pillar is movable on the guide rails. The ball distributor is coupled with the top portion of the pillar toward the court of the field. When the pillar approaches the discharge port of the ball collector, the ball distributor receives the practice ball falling into a ball inlet formed in the top surface thereof, and discharges the received ball to the court of the field through a distribution tube, which is installed at the bottom portion of the ball distributor to be able to rotate, by a discharge control signal.

Description

Volley ball practice device}

The present invention relates to a device for practicing a volley ball in which a net is placed between two teams and an arm and a hand are used to pass a ball to an opponent team to compete against each other. More specifically, The present invention relates to a volleyball practice apparatus capable of effectively exercising an attack (spike) which serves to receive an exercise ball and hit a practice ball falling down from the top down with a counterweight.

In general, ball games such as soccer, volleyball, and basketball use various ball training aids to improve athletes' attack and defense skills. Using these training aids can reduce the fatigue of competition leaders, that is, coaches and coaches, and athletes were able to acquire a variety of skills easily. An example of football is a corner kick volley, a ground shot, a heading shot, a penalty kick, etc., which receives the ball coming in from the goal line or touch line direction. An example of such a ball practice aids is disclosed in Japanese Laid-Open Patent Publication No. 9-276463 (published on October 28, 1997).

The "ball shooting device" disclosed in the above-mentioned patent document is configured to inject a ball to be inserted between two pitching rollers rotated by two motors, and to fire by the rotational force of the pitching roller. Therefore, there was a problem that the firing angle was not constant when repeatedly used, and there was an inconvenience that many balls were manually collected and inserted into the ball receiver. In the prior art described in the above patent document, it is impossible to drop the ball in a form falling downward by launching the ball straight from above, so that it is not possible to practice the attack using the net to strongly lower the practice ball, I could not get the receiver practice to take the serve ball and hand it over to the other court.

In addition, the ball throwing apparatus according to the above conventional technique is not suitable for volleyball or the like. Volleyball is a volleyball game between two teams using techniques such as tos, receivers, and spikes. It is a game in which a ball is hit on each other without dropping it on the floor and falls on the other team's court. One team competes with each other after returning to the net after three times of contact with the ball. The conventional ball throwing device disclosed in the above-mentioned patent literally throws the ball in the forward direction by putting the ball between the two pitching rollers There was a problem such as hitting the net directly, and the equipment was so expensive that there was a lot of problems in utilizing it for general daily sports and sports activities. In general life sports, there is a high interest in physical education and sports activities throughout the life of the human being, from children to older people, so it is important to develop the living sports and to maintain conditions such as facilities, organization, and leaders necessary for them.

Open Patent Publication No. 10-2004-0098694 (published on November 26, 2004)

Accordingly, it is an object of the present invention to provide a practice that allows a practitioner to smoothly practice a receiving operation by launching a sub ball into a ball so that the volleyball enjoyed by the general public can be enjoyed at a minimum cost, And to provide a volleyball practice device capable of exercising.

Another object of the present invention is to provide a ball dispenser for automatically collecting a practice ball fired on a ball so as to launch a practice ball and easily supply an automatically collected practice ball to a ball dispenser installed close to a sideline, In which the position of the sub-receiver and the spike can be freely changed so that the sub-receipt and the spike can be performed at various positions at various positions.

Another object of the present invention is to provide a practice ball shooting device capable of shooting a practice ball in various directions using a hydraulic cylinder and a practice ball shot by a volley ball court to be automatically collected at the corner on the end line side And a volleyball practice device having a structure for automatically supplying the volleyball training device to an air throwing device.

It is still another object of the present invention to provide a volleyball practice apparatus having an exercise ball shooting device that fires an exercise ball in all directions using a hydraulic cylinder operated at high speed.

According to an aspect of the present invention, there is provided a floor structure including a bottom surface inclined downwardly from a center line to an end line along a sideline line, and a ball pitcher having a transfer furrow inclined downward from one corner of the end line toward the other corner volley ball field); An exercise ball throwing device which is provided at a corner portion of the ball so as to store a training ball dropped from an upper portion thereof and fires an exercise ball stored in the balloon into a ball on the other side of the ball; And a control unit that is installed vertically to a downward end portion of the conveying trough and that moves the training ball collected at the entrance of the lower portion of the cylindrical body by the rotation of the recovery motor installed at the upper portion, A ball reclaimer for dropping the ball into and around the practice ball launcher; A guide rail spaced apart from a position parallel to the side line of the ball; A column having an upper end formed to be higher than a height of a net pole installed in the ballpath and a roller mounted on a bottom of the ball so as to be able to move on the guide rail; And a control unit that receives the training ball dropped onto the top ball inflow opening when the column is close to the discharge opening of the ball recycling hand, And a ball dispenser for discharging the ball to the court of the ball court through a distributing pipe provided to be rotatable.

The ball dispenser includes a housing coupled to an upper side of an upper portion of the column to open at an upper side thereof, a partition wall provided inside the housing and partitioning the organs and the discharge space and having an open bottom, A discharge pipe connected to the bottom of the discharge space so as to be rotatable in the left and right direction at an opening formed in the bottom surface of the discharge space, and a discharge path formed in the discharge space from the co- And a rotary opening / closing plate for opening and closing.

The rotation opening / closing plate is coupled to a rotation shaft of an opening / closing motor fixed to one side of the inner surface of the housing, and the opening / closing motor opens and closes the air transfer path by rotation of the opening / closing motor.

The upper end of the discharge pipe is inserted into the opening through the inside of a mounting space provided at a lower portion of the housing, a rack gear of a straight bevel gear is coupled to an outer circumferential surface inserted into the opening, And is rotatably driven by being coupled to a rotating shaft of a swing motor fixed to the swing motor.

The practice ball dispensing apparatus has a body having a space of a predetermined size and open in all directions and a practice ball coupled to an upper portion of the body so as to be inserted into an upper portion of the body, A launching table having a rotary seating bracket provided on the upper portion of the space of the body to be rotatable in the left and right direction and axially seated on both sides of the rotation bracket so as to be rotatable up and down; And a cylinder piston which is coupled to an upper end of the hollow body and seats the exercise hole discharged from an outlet of the hollow body through an upper opening of one end of the hollow body and is coupled to the other end of the hollow body, And an exercise ball which fires the exercise ball placed at the firing point in all directions by the blow of the striker coupled to the end of the ball A cylinder actuator installed in a space portion of the body for driving the cylinder by driving the cylinder to project the piston in the forward and backward directions and a control unit for controlling the rotary bracket to rotate horizontally And a launch controller for rotating the axle launching platform in a vertical direction with respect to a horizontal axis of the axle joint to determine a launch direction and operating the hydraulic device to fire the exercise ball.

A cylindrical collecting tube having a discharge port formed in a part of a lower portion thereof and a discharge opening in a lower portion of the conveying trough and a spiral screw formed on an outer circumference of the cylindrical collecting tube, And a screw conveyor coupled to the shaft of the recovery motor for transferring the training ball inserted into the loading hole by rotation of the collection motor to the upper discharge opening of the collection tube along the spiral screw.

The collecting vibration plate oscillating by the rotation of the collecting motor to supply the training ball located at the lower end of the conveying trough to the inlet of the cylindrical collecting tube is inclined from the conveying trough to the inlet side of the cylindrical vertical tube It is good to do.

The diameter of one end of the hollow body may be smaller than the diameter of the exercise ball so that the practice ball is seated at a launch point set at the end of the hollow body.

The cylinder actuator includes a hydraulic pressure tank in which a hydraulic pressure is stored, an oil pressure accumulator (hereinafter referred to as a 'nitrogen tank') having a nitrogen tube filled with nitrogen and having a pressure gauge for checking the nitrogen pressure of the nitrogen tube A pressure sensor for checking the pressure of nitrogen in the nitrogen tank; a pressure sensor for detecting a pressure of the hydraulic fluid discharged from the hydraulic fluid outlet of the cylinder, the inlet of the hydraulic tank, Supplying and discharging solenoid valves connected between the inlet of the nitrogen tank and the outlet of the nitrogen tank and the hydraulic oil inlet of the cylinder in a preset sequence according to the firing mode and the firing cycle to make the piston of the cylinder appear and disappear do.

The volleyball practice apparatus according to the embodiment of the present invention can not only serve the practice ball at the corner of the ball court with the other side court but also fall down from the top of the volleyball court to practice the spike efficiently as well as the sub- have. In addition, the practice ball is automatically collected from the center line to be inclined to both end lines, so that the practice ball fired into the ball is automatically collected to the end line, and automatically recovered by the ball handler provided at the end of the transfer ball formed inclined at the end line side, And a ball dispenser provided on a guide rail spaced apart from a position parallel to the sideline can be easily moved in the direction of the sphygmomanometer so as to store the training ball, It is a new concept volleyball practice system that can practice an unmanned volleyball practice ground by practicing a spike practice by dropping a practice ball. Therefore, one or a small number of people can practice volleyball efficiently and continuously, so that it can revitalize life sports, so it is possible to more easily provide the physical strength of the people and opportunities for healthy leisure activities, thereby contributing to a healthy public life. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram of a volleyball practice apparatus according to an embodiment of the present invention; FIG.
Fig. 2 is a sectional view of the ball court of the volleyball practice apparatus shown in Fig. 1; Fig.
3 is a specific configuration diagram of a calliper according to an embodiment of the present invention;
4 is a configuration diagram of a practice ball shooting device according to an embodiment of the present invention;
5 is a front cross-sectional view of an exercise ball launcher according to an embodiment of the present invention.
6 is a side cross-sectional view of a practice airborne apparatus according to an embodiment of the present invention.
FIG. 7 is an exploded perspective view showing an internal configuration of a practice ball shooting device according to an embodiment of the present invention; FIG.
8 is a cross-sectional view of a hollow body for air blowing according to an embodiment of the present invention.
FIG. 9 is a control block diagram of a ballooning machine according to an embodiment of the present invention; FIG.
10 is an operational flowchart of an exercise ball launcher according to an embodiment of the present invention.
FIG. 11 is a flowchart illustrating an operation of an exercise ball shooting device according to another embodiment of the present invention; FIG.
12 is a side cross-sectional view of a ball dispenser according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be noted that the embodiments of the present invention described below are intended to sufficiently convey the spirit of the present invention to those skilled in the art.

The volleyball practice apparatus 1 according to the preferred embodiment of the present invention is installed in the ballpark 10 provided as shown in Fig. A practice ball dispensing apparatus 100 for shooting a practice ball toward the ball 10 is provided at a corner area where the end line of the ball 10 and the side line are in contact with each other. In addition, a calliper 200 for automatically collecting the training ball collected on the end line side and supplying the same to the practice ball shooting device 100 is provided. The volleyball practice apparatus 1 according to the present invention is provided with a practice ball shooting device 100a having the same configuration as the practice ball shooting device 100 on the side line side of the ball 10. At this time, the practice ball supply of the practice ballistic launching apparatus 100a is performed manually. The same structure as that of the morontia sewing machine 200 may be provided close to the practice ball launcher 100a to automatically supply the ball or the ball to the ball outlet pipe 202 of the ball hook handler 200 and the top of the practice ball launcher 100a It is also possible to automatically supply the ball by installing a ball transfer line between the co-existing organs.

A ball stored in the upper co-operative organ 304 is connected to a lower portion of the distribution pipe 316 (hereinafter, referred to as " lower collecting pipe 316 ") at a portion near a side line of the ball 10, A ball dispenser 300 for dropping the ball into the court of the ball 10 is installed. In this case, the ball dispenser 300 may be installed to hang on the pipe installed in the lateral or longitudinal direction at the upper part of the court of the ball 10, but in the embodiment of the present invention, As shown in Fig. A camera (CAM) for photographing a forward object is provided on the front surface of the practice ball Launching apparatus 100 and the practice ball Launching apparatus 100a provided on the side line side.

The column 250 is installed at an upper portion of a guide rail 252 spaced apart from a position parallel to the side line of the ball 10 and is movable in the back and forth direction along the side line of the ball 10. At this time, the upper end of the column 250 is formed higher than the height of a net pole (POL) provided on the ball 10, and a roller wheel 251 mounted on the guide rail 252 is attached And is slid in the longitudinal direction on the guide rail 252. Of course, the roller wheels 251 may be fixedly coupled to the guide rails 252 so as not to move.

The column 250 to which the ball dispenser 300 is coupled may be moved from the upper portion of the guide rail 252 to be close to the ball discharge pipe 202 of the ball recycling machine 200. At this time, when the ball discharge pipe 202 of the ball circulator 200 is rotated and directed to the upper part of the ball dispenser 300, the practice ball supplied from the ball handler 200 is transferred to the ball joint 300 of the ball dispenser 300, ≪ / RTI > This operation will be more clearly understood from the following description.

The ball 10 shown in Fig. 1 is formed downwardly from the center portion to the end lines on both sides as shown in Fig. At this time, the downward inclination angle can be set between about 1 and 5 degrees, which is the extent to which the practice ball dropped on the ball is able to roll in the direction of the end line. Specifically, a transfer furrow 14 sloping downward from one corner to the other corner is formed in the rear of the end line so that the practice ball, which has fallen to the bottom surface of the ball 10, rolls along the slope to the end line And the training ball introduced into the conveying trough 14 is collected toward the gate G of the counter tracer 200 installed on the corner side along the inclined surface of the conveying trough 14. [

The operation of the calliper 200 will be described first with reference to FIG. The conveying valley 14 formed behind the end line of the ball 10 is inclined downward from one corner to the other corner. Therefore, the training ball collected by the conveying valley 14 via the end line on the basis of the center line HL of the ball 10 is rolled in the downward direction of the cylindrical collecting pipe, that is, the recalling hand machine 200, 200 are introduced into the lower gate G of the work machine 200. [

When the recovering motor 206 installed on the upper part of the work machine 200 is rotated, the rotating shaft 208 connected thereto is rotated. At this time, on the outer circumferential surface of the rotating shaft 208, a helical screw 210 having a pitch (for example, 220 mm) which is equal to the diameter of the exercise ball or about 1 cm is formed. At this time, the distance r1 between the rotating shaft 208 and the inner surface of the ball mill 200 is formed to be about 1 to 3 mm smaller than the diameter r2 of the training ball. When the rotary shaft 208 is rotated, the training ball inflowed into the lower gate G of the worker 200 is rotated by the rotation shaft 208 of the screw conveyor 212, which is composed of the rotary shaft 208 and the spiral screw 210, And the inner surface of the cylindrical collecting tube 204 while being rubbed. At this time, since the distance r2 between the rotating shaft 208 and the inner surface of the worker 200 is smaller than the diameter r1 of the training ball, the training ball is slightly distorted so that the feeding to the top is smooth.

A vibrating plate 214 vibrating in the longitudinal direction by rotation of the vibration motor 216 is embedded or installed in the conveying valley 14 of the front portion of the gate G of the grounding unit 200. [ The vibration motor 2014 is rotated simultaneously with the recovery motor 206 during the recirculation operation so that the training ball collected at the end of the downwardly inclined conveying rib 14 smoothly enters the gate G of the recipe handler 200 .

The training ball transferred to the upper portion of the screw conveyor 212 of the ball recycling machine 200 is conveyed by the rotation of the helical screw 210 to be discharged to the ball discharge pipe 202 coupled to the upper portion of the cylindrical collecting pipe 204 . The exercise ball discharged through the ball discharge pipe 202 is inserted into the upper opening of the airborne container 104 of the practice ball deploying apparatus 100 installed adjacent thereto as shown in FIG. 1, To the cochlear organ 304 through the upper opening of the ball dispenser 300. [

In the configuration described above, the air discharge pipe 202 provided on the upper portion of the groundwater collector 200 is rotatably installed on the upper portion of the cylindrical collecting pipe 204 as shown by "R" The ring gear or the like can be rotated by the motor and automatically rotated by the power.

The practicing air launching apparatus 100 (100a) according to the present invention is configured as shown in FIGS.

As shown in FIG. 4, the practice ball launcher 100a has a space of a predetermined size inside the body 102, and one side, preferably the front side, of the body 102 is provided with an open structure And an exercise ball launcher 105 for launching a practice ball is located in the space portion. At this time, a plurality of components for operating the practice ball launcher 105 are installed in the body 100 so that the practice ball launcher 105 is rotated left and right and up and down, Bars, these internal components and their operating relationship will be described later. In the present invention, a practicing ball may be used in practice.

Although not shown in the drawing, a wheel for moving may be provided at an edge of the lower end of the body 102. In order to fix the body 102, It is possible to additionally provide fixing means in the form of a plate. Further, it is preferable that the front wheel is provided with a known structure free to rotate so that the direction of the front wheel can be changed in all directions when the body 102 is moved.

A ballast container 104 having an outer wall of a predetermined size for receiving the exercise ball is coupled to the upper side of the body 102. The air-conditioner container 104 may be formed in a rectangular tube shape having open top and bottom, and may have a mesh structure to easily identify the amount of the loaded practice ball with the naked eye.

An inlet 107 having a predetermined size is formed on the upper surface of the body 102 to allow the training ball supplied from the airborne vessel 104 to flow into the body 102. The upper surface of the body 102 is provided with a downward inclined surface at a predetermined angle toward the inlet 107 to facilitate introduction of the training ball. At this time, the body 102 and the air-con- tainer 104 coupled to the upper part of the body 102 may be combined by various methods. For example, the body 102 can be joined by welding. A fitting groove is formed at the edge of the upper surface of the body 102, and a fitting protrusion is formed on the lower edge side of the water container 104 so that the fitting protrusion is inserted into the fitting groove And the air conditioner container 104 is seated on the upper portion of the body 102 while being fitted to each other.

Although not shown in the drawings, an operation switch, a display device for displaying an operation, and a key button for setting an operation mode may be provided outside the body 102, for example, a touch screen.

In the present invention, the practicing air launcher 105 installed in the space portion of the body 102 receives the practice ball from the air-con- tainer 104 coupled to the upper portion of the body 100 and emits it. A connecting tube (corrugated tube) 116 of a predetermined diameter extending from the lower portion of the inlet 107 formed in the inclined surface 103 of the body 100 is inserted for transferring the training ball. The connection pipe 116 is connected to the inflow hole 115 opened at the upper portion of the front portion of the hollow body 114 constituting the practice ball launcher 105.

The training ball introduced into the inflow hole 115 of the hollow body 114 is seated at the launching point as shown in Fig. At this time, the hollow body 114 is formed with an internally rounded protrusion 114a at the end thereof, so that the training ball introduced into the inflow hole 115 flows out of the hollow body 114 as a projectile without a blow The phenomenon does not occur. A sensor is provided at the end of the hollow body 114 to determine whether or not a training ball is present and provide the balloon to a launch controller (not shown, including a microprocessor) configured as shown in FIG. As such a sensor, various sensors such as a photo sensor can be used.

The hollow body 114 is coupled to an upper portion of a shaft joint launching platform 112 provided at a lower portion of the hollow body 114. The shaft joint launching rod 114 is rotatably coupled to a rotation bracket 110 provided at a lower portion thereof, . More specifically, a rack gear 118 is integrally provided on one side of the shaft joint launcher 112 and a drive gear 119 is provided at one end of the rack gear 118 and the shaft joint launcher 112 And the hollow body 114 can be rotated up and down by the inclined motor 117 connected to the driving gear 119 by being provided in a mutually meshed state. The rotating bracket 110 is fixed to a rotating plate 128 coupled to a rotating shaft of a rotating motor 120 provided at a lower portion of the rotating bracket 110 so that the rotating bracket 110 can rotate left and right by driving the rotating motor 120.

As described above, the practice ball launcher 105 of the practice ball shooting apparatus 100 (100a) of the present invention is configured such that the left and right rotation of the rotation bracket 110 and the up- It is possible to fire the positioned exercise ball in the upward, downward, leftward and rightward directions.

The training ball introduced into the hollow body 114 is fired in all directions by the operation of the cylinder 130 coupled to the rear end of the hollow body 114. The piston 132 of the cylinder 130 is inserted into the hollow body 112 as shown in FIG. 8 and the striking plate 134 is coupled to the end of the piston 132. At this time, the cylinder 132 may use a hydraulic or pneumatic cylinder, but it is preferable to use a hydraulic cylinder to fire the practice ball at a higher speed.

The hydraulic cylinder 132 has a hydraulic oil inlet and a hydraulic oil outlet. The hydraulic oil inlet is connected to the outlet of the nitrogen tank 144 via a hydraulic drain solenoid valve 150, and the hydraulic oil outlet is connected to a hydraulic return solenoid valve 146 to the hydraulic tank 140. A hydraulic pump 142 is connected between the hydraulic tank 140 and the nitrogen tank 144. A hydraulic pressure supply solenoid valve 148 is connected between the hydraulic pump 142 and the nitrogen tank 144 . At this time, the nitrogen tank 144 has a nitrogen tube filled with nitrogen therein and a pressure gauge for checking the nitrogen pressure of the nitrogen tube. When the hydraulic pressure is supplied to the nitrogen tank 114 having such a configuration, pressure is applied to the nitrogen tube in proportion to the amount of oil supplied, thereby increasing the internal pressure of the nitrogen tube. The increase information of the internal pressure is provided to a fire controller (not shown).

The operation of the hydraulic circuit thus configured will be briefly described below. The control unit drives the hydraulic pump 142 in a state in which the supply solenoid valve 148 is opened so that the hydraulic pressure in the hydraulic tank 140 is supplied to the nitrogen tank 144 ). When the amount of hydraulic pressure supplied into the nitrogen tank 144 by continuous pumping is increased, pressure is applied to the nitrogen tube installed therein and this pressure increase information is provided to the controller. When the pressure sensing information of the nitrogen tube has a predetermined pressure value, the supply of the hydraulic pump 142 is stopped and the supply solenoid valve 148 is closed. Therefore, it can be understood that the nitrogen tank 148 is filled with hydraulic pressure at a high pressure.

When the launch command is input from the outside (touch screen) to the controller, or when the program reaches a preset launch cycle, the controller opens the discharge solenoid valve 150 only for a certain period of time. When the discharge solenoid valve 150 is opened by the above operation, the hydraulic pressure filled in the nitrogen tank 144 at a high pressure is supplied to the hydraulic oil inlet of the cylinder 130, so that the piston 130 in the cylinder 130 moves forward And the striking plate 134 attached to the end of the striking plate 134 hits the training ball placed at the end of the hollow body 114 and fires in all directions.

When the controller that opens and closes the discharge solenoid valve 150 for a predetermined time opens the recovery and supply slave node valves 146 and 148 and drives the hydraulic pump 142, the hydraulic pressure filled in the cylinder 130 is discharged to the hydraulic tank 140 so that the piston 132 enters the inside of the cylinder.

The controller controls the rotation of the rotation motor 120 coupled to the lower portion of the rotation bracket 110 and the rotation of the inclined motor 117 coupled to the side as well as the operation of the hydraulic circuit described above, Or vertically.

FIG. 9 is a block diagram of a launch controller of a public artiller according to an embodiment of the present invention, which is provided in an internal space of a body 102 of a practice launcher 100. Referring to FIG. 9, the launch controller includes a camera (CAM) for illuminating the other side of the ball 10 on the front side of the body 102. The touch screen TS provided on the body 102 of the practice ball shooting device 100 is installed on one of the side surfaces of the body 102. As described above, , And a key button for setting an operation mode are provided on the touch screen.

The information of the user's selection action (manual, automatic, camera mode, direction setting mode, subreceive, spike mode setting, etc.) provided from the touch screen TS and the video signal photographed from the camera (CAM) ). The controller (MPU) controls all operations of the practice launcher 100, and is largely divided into a manual mode, an automatic mode, and a camera mode.

In the manual mode, the controller MPU drives the rotation motor 120 and the tilt motor 117 by inputting the direction setting keys (vertical and horizontal) from the touch screen, And actuates the cylinder 130 of the hydraulic apparatus through the solenoid valve driving unit (SOD) by a fire command from the touch screen to fire the practice ball. In the automatic mode, the controller MPU drives the rotation motor 120 and the tilting motor 117 by inputting direction setting keys (vertical and horizontal) from the touch screen, And actuates the cylinder 130 of the hydraulic device through the solenoid valve driving unit SOD every predetermined time period (for example, every 15 seconds) to fire the practice ball. In the camera mode, the controller MPU controls the rotating motor 120 and the tilting motor 117 so that the practice ball launcher 105 is directed in the direction of the practitioner of the ballparks photographed by the camera (CAM) After a predetermined period of time (for example, when the practitioner lifts his / her arm upwards), the cylinder 130 of the hydraulic apparatus is operated through the solenoid valve driving unit (SOD) 1 to 2 seconds later, And controls the operation of the practice ball launcher (100).

FIG. 10 is a flowchart showing the operation of the practice airborne apparatus according to the embodiment of the present invention, which is for explaining the operation in the manual mode and the automatic mode.

As described above, the volleyball practice apparatus 1 of the present invention is provided with a touch screen TS on the outside of the body 102. The touch screen TS includes a controller MPU incorporated in the body 102, And the controller MPU controls the operation of each operating element provided in the body 102 by inputting data through the touch screen TS. That is, the controller starts controlling the operation of the inclined motor 117, the rotary motor 120, the hydraulic pump 142, and the various solenoid valves 146, 148, 150 in the body 102.

The practicing vehicle launching apparatus 100 (100a) can be operated in a manual setting mode and a motion detection mode under the control of the controller (MPU). The manual setting mode is a mode in which a user uses a touch screen (TS) installed in the body 102 to set a motion mode (any one of subreceives and spikes or a combination thereof) and a firing cycle (for example, about 10 seconds to 15 seconds The ball is fired to the ball 10 when the firing button is pressed after the firing button is pressed, or a ball supply signal is transmitted to the ball dispenser 300 so that the ball falls down on the court. In this case, although the example of the launch button is on the touch screen (TC), it can be provided on a remote controller carried by a practitioner using a normal remote control device.

1, the practitioner's air launching apparatus 100 installed near the end line can be advantageously used for subreceives, and the practice air launching apparatus 100a provided on the side line side can be used for a court So that the ball is dropped in the form of a parabola so that it can be usefully used for aerial ball receipt and spike practice.

The user can select the operation of the practice airborne launching apparatus 100 installed on the end line side of the field or the practice airborne launching apparatus 100a provided on the side line side using the remote controller. In the following description, the operation of the practice launcher 100 installed on the end line side will be described in detail.

Manual setting mode (subreceive practice)

When the practice air launching apparatus 100 is operated, the MPU checks the pressure in the nitrogen tank 144 in step S1 to determine whether the piston 132 of the cylinder 130 can be discharged at a predetermined speed Search. If the pressure of the nitrogen tube in the nitrogen tank 140 does not reach the predetermined pressure, the controller opens the recovery and supply solenoid valves 146 and 148 through the solenoid valve driving unit SOD in step S6, 142). Therefore, the hydraulic pressure in the cylinder 130 is recovered to the hydraulic tank 140 and then supplied to the nitrogen tank 144. [ When the hydraulic pressure is continuously supplied to the nitrogen tank 144, the pressure applied to the nitrogen tube installed therein increases to reach the set pressure.

If it is determined in S2 that the pressure of the nitrogen tank is the set pressure, the controller MPU closes the recovery and discharge solenoid valves 146, 148 and 150 through the solenoid valve driver (SOD) A search button of the touch screen or the remote control is pressed. If it is determined in step S4 that the fire button is pressed, the controller MPU opens the discharge solenoid valve 148 for a predetermined time t in step S5. At this time, the hydraulic pressure filled with the high pressure in the nitrogen tank 144 is supplied to the inlet of the cylinder 130 through the discharge solenoid valve 148 at a high speed due to the expansion of the compressed nitrogen tube.

Therefore, the cylinder 130 protrudes in the forward direction the piston 132 positioned therein by the hydraulic pressure flowing into the cylinder 130 at a very high pressure, and the impact plate, which is coupled to the end of the piston 132 by the forward protrusion of the piston 132, (134) strikes the practice ball placed at the end of the hollow body (114) and fires in all directions. At this time, the launch angle of the trainer 105 placed in the space of the body 102 of the trainer 100 is controlled by the control of the tilt motor 117 and the rotary motor 120 .

In step S6, the controller MPU opens the recovery and supply solenoid valves 146 and 148 through a solenoid valve driver (SOD) in step S6. Then, in step S7, the MPU drives the hydraulic pump 142 to operate the nitrogen tank 142 are filled with hydraulic pressure.

If the launch button displayed on the touch screen TS is not selected in step S4, the controller MPU controls the horizontal, vertical, and vertical directions of the practice ball launcher 105 (voluntary) according to the mode set in step S8. After the firing interval is adjusted, step S5 is performed. The mode set in the step S8 means the setting of the automatic firing mode and the camera mode.

If the setting mode is the automatic firing mode in step S8, the controller MPU drives the rotation motor 120 and the tilting motor 117 by inputting the direction setting keys (vertical and horizontal) from the touch screen, Sets the launch direction of the air launcher 105, and activates the cylinder 130 of the hydraulic device through the solenoid valve driving unit (SOD) every predetermined time period to fire the practice ball. If it is determined in step S8 that the setting mode is the camera mode, the MPU controls the operation of the practice launcher 100 in the procedure of FIG. 11 and does not perform any operation in the case of the stop mode in step S8 .

Motion Detection Mode (Sub-Receive Exercise)

FIG. 11 is a flowchart showing the operation of the practice airborne apparatus according to another embodiment of the present invention, which is performed by setting a direction of shooting by a camera (CAM) installed on the side of the body 102, It is to fire the practice ball according to the movement.

Referring to FIG. 11, in step S10, the controller (MPU) searches whether the current mode is the camera operation mode. If the result of the search is not the camera operation mode, the process jumps to step S17 and fires the practice ball according to the manual mode operation as described above. If it is determined in step S12 that the camera operation mode is selected, the controller MPU receives an image signal from a camera (CAM) installed on the front of the body 102 in step S11, and moves the subject of the ball 12 . The controller MPU detects the position of the practitioner in the ball 12 by the detected subject and then controls the tilting motor 117 and the horizontal motor 120 in step S13 to adjust the vertical angle and the horizontal angle Thereby setting the launch angle of the practice ball launcher 105. [

In step S14, the controller MPU analyzes the image signal transmitted from the camera (CAM) to analyze the motion of the subject. In step S15, the controller MPU determines whether the motion of the subject is a preset motion. For example, a practitioner in the ballpark 12 searches for a state in which the arm is raised high. This search can be easily performed by comparing the frame image of 1 second before and the image of the current frame. If it is determined in step S15 that the subject motion of the video signal received through the camera (CAM) is a predetermined motion, the MPU controls the solenoid valve driver (SOD) in the above- The striking plate 134 provided at the front portion of the piston 132 of the cylinder 130 strikes the training ball so that the training ball is fired toward the subject.

And is blown over the other side of the court over the net (NET) installed on the ball 10 according to the operation mode fired from the practice ball launcher 105. At this time, if the practitioner falls from the top, or receives or hits the practice ball that is flying at an angle, it falls to the floor of the court where the practitioner is located, or falls over the net to the floor of the other cord. At this time, the bottom surface of the ball 10 is inclined downward from the half line HL in the direction of the end line as described above, and the ball falling on the bottom surface is automatically moved along the conveying trough 114 formed on the end line side 200 to the gate (G) portion.

The training ball collected at the gate G of the ball reciever 200 is transported to the upper part as described above and is transported to the aerobic container 104 of the practice launcher 100 or the co- 304). In the above-described embodiment, a hydraulic cylinder is used as the actuator of the exercise ball launcher 105, but a pneumatic cylinder can be used by a person skilled in the art who understands the specification of the present invention.

Spike Mode (Spike Practice)

The spike mode of the volleyball practice apparatus 1 is also set by the touch screen TS provided on the body 102 of the practice ball shooting apparatus 100. [ When the spike mode is set by the key button of the touch screen TS, the control unit MPU shown in FIG. 9 transmits the corresponding information to the controller 324 in the ball dispenser 300 shown in FIG. 12 . Data can be transmitted and received between the MPU and the controller 324 in the ball dispenser 300 by wire or wireless and transmitted to the spike ball distribution control signal by the image information photographed by the camera CAM do. For example, when a predetermined motion of the practitioner (for example, looking up an arm) is detected by the camera (CAM) in the state that the operation mode is the spike mode, or when a spike signal is received from the remote controller carried by the user And transmits the distribution control signal to the controller 324 of the distributor 300.

12 is a detailed configuration diagram of the ball dispenser 300 shown in FIG. Referring to FIG. 12, the ball dispenser 300 has a housing 301 coupled to one upper side of the column 250. One side of the upper portion of the housing 301 is open to form a co-organ 304 therein and the inside of the co-organ 304 is separated by a partition 308 to form a discharge space 306. The bottom surface 305 of the co-protruding organ 304 is formed to be inclined downward toward the discharge space 306 and an opening through which the discharge pipe 316 discharging the exercise ball is rotatably coupled is formed on the bottom surface of the discharge space 306 Respectively.

A stopper 314 is vertically installed at one side of the discharge opening formed below the discharge space 306 and a rotary switch plate 310 is fixed to the partition wall 308 by an open / close motor 302 As shown in Fig. The rotation opening and closing plate 310 opens and closes a discharge hole formed in a lower portion of the partition 308 by the rotation of the opening and closing motor 302 so that a practice hole contained in the hole storage space 304 is discharged to the discharge hole.

The upper end of the discharge pipe 316 is inserted into an installation space provided at a lower portion of the housing 302 and a rack gear of a straight bevel gear 318 is coupled to the upper end. The driving gear of the linear bevel gear 318 is coupled to the rotating shaft 322 of the swing motor 320 fixed to the installation space and the opening and closing motor 302, the swing motor 320, the controller (MCU) 324 ). The discharge pipe 316 is formed with a downward slope and a drop outlet 316a formed in a downward direction and a horizontal outlet 316b formed in an inclined horizontal direction are formed at an end portion thereof. Is discharged to the drop outlet 316a or the horizontal outlet 316b by a damper 316c coupled between the outlet 316a and the horizontal outlet 316b. The damper 316c opens either the drop outlet 316a or the horizontal outlet 316b by a damper driver 316d constituted by a motor or the like. A normal manual damper (switch) which is manually operated when the damper driver 316d is not used can be used. When the damper driver 316d is used, the damper driver 316d is controlled by the controller 324 that receives the remote control signal of the remote controller.

For example, when the damper driver 316d drives the damper 316c in the vertical direction, the drop outlet 316a is opened and the horizontal outlet 316b is closed, so that the exercise ball discharged from the discharge pipe 316 Directly downward. On the contrary, when the damper driver 316d drives the damper 316c in the horizontal direction, the drop outlet 316a is closed and the horizontal outlet 316b is opened so that the exercise ball discharged from the discharge pipe 316 is discharged through the horizontal outlet And fall in a horizontal direction through the second opening 316b.

When the opening / closing motor 302 makes one rotation under the control of the controller 324 shown in FIG. 12, the rotary opening / closing plate 310 axially coupled to the rotary shaft 312 of the opening / closing motor 302 is opened, The practice ball is allowed to drop the practice ball directly from the upper portion of the cord of the ball 10 through the drop outlet 316a provided at the end of the discharge pipe 316 or to drop the emergency ball into the cord after the emergency exit through the horizontal outlet 316b, A player can practice an attack that hits a ball falling in various directions from above, or flying from top to bottom in a horizontal direction. Thus, the practitioner can practice the spike attack by dropping directly under the top of the coat or by hitting the practice ball from the horizontal direction with a strong hand. In addition, by rotating the swing motor 320, the direction of the end of the discharge pipe 316 can be adjusted to adjust the falling direction of the ball.

The controller 324 transmits and receives data to and from the controller 324 of the practice launcher 100 by wire or wireless and controls the opening and closing motor 302 and the swing motor 320 by receiving a ball distribution control signal, It can be controlled independently. The control unit 324 drives the opening and closing motor 302 and the swing motor 320 by the remote control signal transmitted from the remote controller so that the practice ball accommodated in the co- You can drop it in code.

As described above, the volleyball practice apparatus of the present invention emits a service sub ball in the end line of a volleyball court and drops the ball from above the side line close to the court, so that the volleyball practitioner can perform the sub- can do.

Supply ball to ball dispenser

When the pillar 250 is pushed in the direction of the pivot 200 of FIG. 1, the pillar 250 coupled to the upper portion of the rail 252, when there is no practice ball stored in the co-pivotal organ 304 of the ball dispenser 300, Rear direction along the rail 252 by a roller wheel 251 coupled to the bottom surface. The ball dispenser 300 is positioned below the ball discharge pipe 202 of the ball handwheel 200 and the discharging direction of the ball discharge pipe 202 of the ball handwheel 200 is aligned with the ball distributor 300 toward the upper opening of the co-existing organs 304. In the above state, when the reclaiming machine 200 described above is operated to collect the training ball collected in the conveying valley 14 and discharge the discharged training ball to the upper distribution pipe 316, the recovered training ball is discharged from the ball dispenser 300 (304).

Airborne exercises using the practice ball launcher (100a) installed on the side line side

When the user selects the practice ball shooting device 100a installed on the side line side using the remote controller and sets the aerial ball shooting mode (the shooting period, the manual shooting, the automatic shooting based on the motion detection, etc.) as described above, The launch device 100a fires the practice ball into the air of the volleyball court in accordance with the air ball firing mode. The balls fired into the air of the volleyball court fall on the cord of the ball 10 in a parabola. Therefore, the user can take a ball that is shot from the side and falls down or heavily hit it, and practice spikes that pass the net (NET).

In the embodiment of the present invention, the practice of the volleyball practice using the practice ball shooting device 100, the ball dispenser 300 and the practice ball shooting device 100a provided on the side line side is explained, The order of operations of the practice ball shooting apparatus 100 (100a) and the ball dispenser 300 can be set by using the above-described procedure, and the order of practice of the receive, spike, and aerial ball can be set.

As described above, according to the volleyball practice apparatus of the present invention, the service ball is fired at the end line of the volleyball court, and the ball drops at the upper portion close to the side line, so that the volleyball practitioner can perform the subreceiving operation and the practice of the spike more efficiently have. In addition, the column 250 provided with the ball dispenser 300 along the guide rails parallel to the side lines can be moved in the forward and backward directions, so that the spike practice can be performed at various positions of the volleyball court.

1: volleyball practice device, 10: ball court, 12: goalpost, 14: transfer ball, 100: practice ball launch device, 101: body, 102: launching port, 103: slope, 104: airborne container, The present invention relates to an airbag apparatus and a method of manufacturing the same and a method of manufacturing the same. The airbag apparatus of the present invention includes: an inflow hole; The present invention relates to a hydraulic motor and a method of manufacturing the same, and more particularly, to a hydraulic motor, The present invention relates to a nitrogen tank for recovering a raw material from a raw material to be treated by the use of a nitrogen tank, A screw conveyor 214 a diaphragm 216 a vibration motor 250 a roller 251 a roller wheel 252 a rail 300 a ball dispenser 301 a housing 302 an opening and closing motor 304 a co- Cotton, 306 A discharge space and a discharge space 308 a partition wall 310 a rotation opening and closing plate 312 and 322 a rotation shaft 314 a stopper 316 a distribution pipe 318 a straight bevel gear 320 a swing motor 324 a controller HL a center line : Inclination angle, G: gate

Claims (4)

A bottom surface inclined downwardly from the center line to the end line along the side line, a ball pitch formed at one corner of the end line and inclined downward toward the other corner; An exercise ball throwing device disposed at a corner of the ball so as to store a practice ball dropped from an upper portion of the ball, and to fire a practice ball contained in the balloon into a ball on the other side of the ball; And a control unit that is installed vertically to a downward end portion of the conveying trough and that moves the training ball collected at the entrance of the lower portion of the cylindrical body by the rotation of the recovery motor installed at the upper portion, A snatcher for dropping the top of the practice ball launcher and its vicinity; A guide rail spaced apart from a position parallel to the side line of the ball; A column having an upper end formed to be higher than a height of a net pole provided on the ball and having a roller wheel mounted on the guide rail to be movable on an upper portion of the guide rail; And a control unit that receives the training ball dropped onto the top ball inflow opening when the column is close to the discharge opening of the ball recycling hand, And a ball dispenser for discharging the ball to the court of the ball court through a drain pipe provided to be rotatable. [2] The ball dispenser of claim 1, wherein the ball dispenser comprises: a housing coupled to one side of the upper portion of the column, the upper portion of which is open; A bottom surface formed to be inclined downward from the lower surface of the cooperative organ to the discharge space and a discharge pipe rotatably coupled to the discharge space in the opening formed in the bottom surface in the left and right direction, And a rotary opening / closing plate for opening / closing the air transfer path formed in the space. [3] The volleyball practice apparatus according to claim 2, wherein the rotation opening / closing plate is screwed to a rotation shaft of an opening / closing motor fixed to one side of an inner surface of the housing, and the opening / closing motor opens / closes the opening / The linear bevel gear according to claim 3, wherein an upper end of the discharge pipe is inserted into the opening through an inside of a mounting space provided at a lower portion of the housing, a rack gear of a straight bevel gear is coupled to an outer circumferential surface inserted into the opening, Wherein the driving gear of the swing motor is coupled to a rotating shaft of the swing motor fixed to the installation space and rotationally driven.

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