KR200255994Y1 - Automatic golf ball recovery and supply system for indoor golf practice - Google Patents

Automatic golf ball recovery and supply system for indoor golf practice Download PDF

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KR200255994Y1
KR200255994Y1 KR2019980022776U KR19980022776U KR200255994Y1 KR 200255994 Y1 KR200255994 Y1 KR 200255994Y1 KR 2019980022776 U KR2019980022776 U KR 2019980022776U KR 19980022776 U KR19980022776 U KR 19980022776U KR 200255994 Y1 KR200255994 Y1 KR 200255994Y1
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ball
conveyor
golf
automatic
collecting tank
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KR2019980022776U
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KR19990008135U (en
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전미자
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Abstract

본 고안은 실내골프연습장의 골프공 자동회수 및 공급장치에 관한 것으로서, 타구된 공을 회수하여 골퍼가 위치한 연습장의 각층의 지정타석에 위치한 티업기로 공급하는 모든 과정을 완전히 무인 자동화함으로서 골프장의 구조를 개선하여 경비를 절감하고 번거러운 수작업에 의한 처리를 간소화하며 인력을 절감하여 골프타격동작을 편리하게 연습하기 위한 장치를 제공하는데 목적이 있다.The present invention relates to an automatic recovery and supply device for golf balls in an indoor golf practice range. The structure of a golf course is completely automated by recovering the ball and supplying it to a tee-up located at a designated seat on each floor of a driving range where a golfer is located. The purpose of the present invention is to provide a device for conveniently practicing the golf striking motion by improving the cost by reducing the cost, simplifying the processing by cumbersome manual work, and reducing the manpower.

본 고안의 구성은 타구된 공을 회수하는 수평 컨베이어(2), 회수된 공을 집구하는 1차집구탱크(3), 집구된 공을 2차집구탱크(4)로 이송시키는 1차수직 컨베이어(6), 공을 세척하고 건조시키는 세척기(7)와 건조기(7a),솔(7b), 송풍기(7c),건조히터(7d) 및 감지센서(5), 2차집구탱크(4), 집구된공을 옥탑부에 위치한 3차집구탱크(8)로 이동시키는 2차 수직컨베이어(10), 3차집구탱크(8)에 집구된 공을 각층의 타석부로 공급하는 공분배기(12), 공분배기(12)에서 낙하된 공의 공기압을 제어하는 낙하압력 제어장치(14), 낙하된 공을 이송시키는 수평이송컨베이어(15), 수평이송컨베이어(15)에 의해 이송된 공을 자동티업기(11)로 이송하는 소형컨베이어(16) 및 자동티업기(11)로 구성된 실내골프연습장의 골프공 자동 회수 및 공급시스템이다. 또한 본 고안에 있어서 1차 수직컨베이어(6)는 어태치먼트체인(6a)으로 구성되고 버킷(6b)을 부착하며 세척기(7)는 나일론재솔(7b) 사이를 통과시킬 수도 있다.The construction of the present invention is a horizontal conveyor (2) for recovering the ball hit, the primary collecting tank (3) for collecting the recovered ball, the primary vertical conveyor for transferring the collected ball to the secondary collecting tank (4) 6) Washer (7), dryer (7a), brush (7b), blower (7c), drying heater (7d) and sensor (5), secondary collecting tank (4) Secondary vertical conveyor (10) for moving the ball to the tertiary collection tank (8) located in the rooftop part, a ball distributor (12) for supplying the balls collected in the tertiary collection tank (8) to the plate at each floor, ball The ball transferred by the drop pressure control device 14 for controlling the air pressure of the ball dropped from the dispenser 12, the horizontal conveying conveyor 15 for conveying the dropped ball, and the horizontal conveying conveyor 15 is an automatic tee-up machine ( 11) is an automatic golf ball recovery and supply system of the indoor golf practice range consisting of a small conveyor (16) and automatic tee-up machine 11 to transfer to. In addition, the primary vertical conveyor (6) in the present invention is composed of an attachment chain (6a) and attaches a bucket (6b), the washing machine (7) may be passed between the nylon material brush (7b).

Description

실내골프연습장의 골프공 자동회수 및 공급장치Automatic recovery and supply device for golf ball in indoor golf practice range

본 고안은 실내골프연습장의 골프공 자동회수 및 공급장치에 관한 것으로서, 더욱 자세히는 타구된 공을 회수하고 골퍼가 위치한 연습장의 각층의 지정타석의 티업기로 골프공을 공급하는 모든 과정을 완전히 무인 자동화함으로서 골프장의 구조를 개선하여 경비를 절감하고 번거러운 수작업에 의한 처리를 간소화하며 인력을 절감하여 편리한 골프타격동작을 연습하기 위한 자동화장치를 제공하는데 목적이있다.The present invention relates to the automatic recovery and supply of the golf ball of the indoor golf practice range, and more specifically, to automate the entire process of recovering the ball and supplying the golf ball to the tee-up of the designated seat at each floor of the practice field where the golfer is located. By improving the structure of the golf course to reduce the cost, to simplify the processing by cumbersome manual work, and to reduce the manpower to provide an automated device for practicing a convenient golf strike action.

종래에는 타구된 공을 작업자가 직접 일일이 회수하여 골퍼에게 수작업으로 공급하거나 작업자가 회수한 공을 캐디머신의 보관통에 투입하여 공급하는 반자동공급장치와 코인에 의한 공바구니 자동공급장치 등이 있으나 수작업으로 인력의 낭비나 안전성 및 청결면에서 문제가 있었고 캐디머신을 사용하는 경우에는 작업자가 직접 수작업으로 공을 수거하여 캐디머신에 집어 넣어야 하고, 코인에 의한 공바구니 공급방법은 작업이 번거로운 문제점이 있었다. 또한 상기한 문제점을 개선하여 타구된 골프공을 집구하여 세척기와 건조기를 통해 세척 건조한후 수평 또는 수직 이송컨베이어로 회수 집구하여 각 타석에 위치한 티업기로 공을 공급하는 장치도 개발되어 있으나 이들 장치는 회수된 공을 건조기로 건조하는 과정에서 완전건조가 이루어지지 못하고(건조효율 60%이하), 완전건조 되지 못한 젖은공을 송풍기로 불어서 안내관을 통해 송풍식 이송장치로 이송하므로서 젖은볼이 먼지 등으로 막힌 관을 통과하여 이송효율이 원활하지 못하였고 집구된 공을 타석위에 위치한 집구장치에서 각층에 위치한 각타석의 티업기에 공을 이송하는 수평이송컨베이어에 분배하는 과정에서 공의 낙하압력(직하중)을 제어하는 장치가 없어서 소음이 많이 발생되고 공이 파손되며 낙하공을 받은 부위에 손상을 가져오며 타석 하부에 매설된 수평이송장치에서 티업기로 공을 이송하는 과정이 원활하지 못해서 기계작동이 원활하지 못하므로 잦은 고장으로 문제점이 많았다. 또한 상기 장치들을 타석하부에 매립설치할때 건축물안전설계상 기계장치를 건물 각층 타석부 중앙부에 매립 설치하므로서 위치가 적절하지 못하여 건물구조의 안전성면에서 문제가 발생하며 공사비가 증가하는 등 문제가 많았으며, 매립설치하는 기계의 프레임이 주물로 되어 있어서 프레임이 녹이 슬고 건물바닥을 뜯기 전에는 수리가 불가능하였다.Conventionally, there is a semi-automatic feeding device for supplying the ball manually by the worker and supplying it manually to the golfer, or by supplying the collected ball to the caddy machine's storage container and automatic supplying device for the ball basket by coin. There was a problem in terms of waste or safety and cleanliness of the manpower, and when using the caddy machine, the worker must manually collect the ball and put it into the caddy machine, and the method of supplying the ball basket by the coin has a troublesome work. In addition, to improve the above problems to collect the ball hit the ball was washed and dried through a washing machine and a dryer and then collected by a horizontal or vertical transfer conveyor to collect the ball to the tee-up located in each plate, but the device is also recovered In the process of drying the dried ball with a dryer, it cannot be completely dried (less than 60% of drying efficiency), and the wet ball that is not completely dried is blown with a blower and transferred to the blower type conveying device through the guide tube. Dropping pressure (direct load) in the process of distributing the ball to the horizontal transfer conveyor that transfers the ball to the tee-up machine of each seat at each floor from the catching device located on the plate at the bottom. There is no device to control the noise, which causes a lot of noise, breaks the ball, and damages the drop hole. Since the process of transferring the ball to the tee-up in the horizontal transfer device embedded in the bottom of the turn at bat was not smooth, the machine operation was not smooth, so there were many problems due to frequent failures. In addition, when the above devices are buried at the bottom of the turn at the bottom of the plate, the building equipment is installed at the center of the turn at the bottom of each floor of the building, so the location is not appropriate, causing problems in terms of safety of the building structure and increasing construction costs. As the frame of the landfilling machine was cast, the repair was impossible until the frame was rusted and the floor was torn off.

본 고안은 이와 같은 문제점을 해소하기 위하여 창안한 것으로 지정타석에서 타구한 볼이 1차집구탱크에서 2차집구탱크로 오는 과정에서 센서로 오염여부를 판정하고 오염된 공은 직열처리방식에 의한 체인구동으로 수분에 강하고 원상회복력이 양호한 나일론재 솔사이로 통과시켜 세척하고 세척된 공은 강력한 송풍기 및 건조히터로 95%이상 건조시켜 공의 이송을 원활하게 하였고 타석 윗부분(옥탑)의 3차 집구탱크에서 분배기에 의해 각층의 공공급콘베이어에 이송하는 낙하압력(직하중)을 조정하는 압력제어장치를 설치하여 소음을 해소하고 공의 파손과 공을 받는 낙하부의 훼손을 방지하였으며, 각층의 수평이송콘베이어로 이송된 공의 티업기에로의 원활한 이송을 위해 수평콘베이어의 경사각도를 3도각도로 유지하기 위하여 비대칭베어링을 장착한 수평컨베이어 하부에 설치함으로서 공의 회수 및 공급의 완전 자동화를 이루었다. 또한 상기장치는 실내골프장 각층의 타석부 정면 선단의 지하에 매립설치함으로서 건물구조의 안전도를 증가시키고 공사비 및 유지비의 절감을 이루었으며 매설되는 기계장치의 프레임은 스테인레스재로 하므로서 기계의 내구성을 증가시키고 수리를 용이하게 하였다.The present invention was devised to solve such a problem. It is determined whether or not the ball hit from the designated batter comes from the first collecting tank to the second collecting tank and is contaminated by the sensor. The ball is washed by passing it between the nylon brush, which is resistant to moisture and has a good resilience, and the ball is dried by a strong blower and a drying heater by 95% or more to facilitate the ball transfer. By installing a pressure control device that adjusts the drop pressure (direct load) that is transferred to the public grade conveyors on each floor by the distributor, it eliminates noise and prevents damage to the ball and damage to the falling part that receives the ball. An asymmetric bearing is used to maintain the angle of inclination of the horizontal conveyor at a 3-degree angle for smooth transfer of the transferred ball to the tee-up machine. By installing the lower horizontal conveyor finished good for full automation of the recovery and supply of balls. In addition, the device is installed in the basement of the front end of the turntable part of each floor of the indoor golf course to increase the safety of the building structure and reduce the construction and maintenance costs. Repair was facilitated.

도 1은 본 고안의 골프공 자동회수 및 공급장치를 도시한 개략도1 is a schematic diagram showing an automatic golf ball recovery and supply device of the present invention

〈도면의 주요한 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1:페어웨이 1a:그물망 2:수평컨베이어 3:1차집구탱크 4:2차집구탱크1: Fairway 1a: Net mesh 2: Horizontal conveyor 3: Primary collection tank 4: Second collection tank

5:감지센서 6:1차수직컨베이어 6a:어태치먼트체인 6b:버킷 7:세척기5: Detection sensor 6: Primary vertical conveyor 6a: Attachment chain 6b: Bucket 7: Washing machine

7a:건조기 7b:솔 7c:송풍기 7d:건조히터 8:3차집구탱크 9:공감지센서7a: Dryer 7b: Brush 7c: Blower 7d: Dryer Heater 8: Third-Order Tank 9: Resonance Sensor

10:2차수직컨베이어 11:자동티업기 12:공분배기 13:공공급호오스10: 2nd Vertical Conveyor 11: Automatic Tee-up Machine 12: Air Distribution Machine 13: Air Supply Hose

14:압력제어장치 15:수평이송컨베이어 15a:컨베이어벨트 15b:공토출구14 Pressure control device 15 Horizontal conveying conveyor 15a Conveyor belt 15b Air discharge port

16:소형컨베이어16: Small Conveyor

본 고안의 구성을 첨부 도면에 의하여 설명하면 다음과 같다.Referring to the configuration of the present invention by the accompanying drawings as follows.

본 고안의 구성은 타구된 공이 그물망(1a)을 맞거나 페어웨이(1) 에 떨어져서 회수되는 수평컨베이어(2), 회수된 공을 집구하는 1차집구탱크(3), 집구된 공을 2차집구탱크(4)로 이송시키는 1차수직 컨베이어(6), 집구된 공을 세척 및 건조시키는 세척기(7)와 건조기(7a),솔(7b), 송풍기(7c), 건조히터(7d) 및 감지센서(5), 2차집구탱크(4), 집구된 공을 3차집구탱크(8)로 이송시키는 2차수직컨베이어(10), 3차집구탱크(8), 집구된 공을 각층의 타석의 저부에 매설된 수평이송컨베이어(15)로 공공급호오스(13)를 통해 이송시키는 공분배기(12), 공분배기(12)에서 낙하되는 공의 낙하압을 제어하는 압력제어장치(14), 분배된 공을 이송시키는 수평이송컨베이어(15), 수평이송컨베이어(15)에 의해 이송된 공을 자동티업기(11)로 이송하는 소형컨베이어(16)와 자동티업기(11)로 구성되어 있다.The construction of the present invention is a horizontal conveyor (2) in which the ball hit the net (1a) or fall off the fairway (1), the primary collecting tank (3) for collecting the recovered ball, the secondary ball to the collected ball Primary vertical conveyor (6) to transfer to tank (4), washer (7) and dryer (7a), brush (7b), blower (7c), drying heater (7d) and sensing Sensor (5), secondary collecting tank (4), secondary vertical conveyor (10) for transferring the collected ball to the secondary collecting tank (8), secondary collecting tank (8), the ball collected at each floor Co-distributor 12 for conveying through the air supply hose 13 to the horizontal conveying conveyor 15 embedded in the bottom of the pressure control device 14 for controlling the drop pressure of the ball falling from the co-distributor 12, Consists of a horizontal conveying conveyor 15 for conveying the dispensed ball, a small conveyor 16 for conveying the ball conveyed by the horizontal conveying conveyor 15 to the automatic tee-up machine 11 and the automatic tee-up machine 11 have.

상기한 본 고안의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention described above are as follows.

지정타석에서 타구한 골프공이 페어웨이(1)나 그물망(1a)에 맞고 경사면 6도 이상으로 낙하하여 회수용 수평컨베이어(2)나 경사장치에 의하여 1차집구탱크(3)로 이송되고 1차집구탱크(3)에 집구된 공은 2차집구탱크(4)에 장치된 공감지센서(5)에 의하여 공이 없음 신호가 발생하면 2차집구탱크(4)로 이송하게 되는데 이때 오염되지 않은 공은 경사로를 통과하고 오염된 공은 세척기(7)의 체인으로 구동되는 솔(7b)사이를 통과하여 직열건조방식으로 열처리한 다음 건조히터(7d)와 송풍기(7c)의 팬을 구동시켜서 건조한다. 2차집구탱크(4)에 집구된 공은 공감지센서(5)에 의하여 자동으로 정지가 된다. 타석부보다 높은 위치(옥탑부)에 위치한 3차집구탱크(8)에서 공감지센서(9)가 공없음을 감지하여 신호가 발생하면 2차수직컨베이어(10)에 의해 3차집구탱크(8)에 공이 이송 집구된다. 실내골프장 각층에 설치된 자동티업기(11)가 작동되면 집구된 공을 3차집구탱크(8)에 부착된 공분배기(12)에 의하여 50Ø공공급호오스(13)를 통하여 각층으로 낙하되는데 이때 가속도가 붙어 낙하하는 공의 낙하압력을 제어하기 의하여 각 공급호오스(13) 하단에 각층에 압력제어장치(14)를 설치하여 압력이 해소된다. 낙하된 공은 각층 건물 타석부 정면 선단에 매설된 공공급용 수평컨베이어(15)에 공급된다, 공급된 공은 비대칭베어링에 의하여 약 3도로 경사진 컨베이어벨트(15a)를 타서 일렬로 정열되면서 이송되어 수평컨베이어(15)의 프레임에 천설된 공토출구(15b)를 통하여 소형컨베이어(17)를 거쳐서 자동티업기(11)에 공급된다. 이때 수평컨베이어(15) 이송중 남은 공은 회수장치에 의해 다시 1차집구탱크(3)로 모이게 된다.The golf ball hit from the designated batter hits the fairway (1) or the net (1a) and falls to more than 6 degrees of slope, and is transferred to the primary collecting tank (3) by a horizontal conveyor (2) or a tilting device for recovery. The ball collected in the tank (3) is transferred to the secondary collecting tank (4) when a ball-free signal is generated by the ball sensor (5) installed in the secondary collecting tank (4). The contaminated ball passes through the ramp and passes between the soles 7b driven by the chain of the washing machine 7, and is heat-treated by a direct heat drying method, and then dried by driving a fan of the drying heater 7d and the blower 7c. The ball collected in the secondary collecting tank (4) is automatically stopped by the ball sensor (5). In the tertiary collection tank (8) located at a higher position than the at-battery part, when the co-sensing sensor (9) detects no ball and a signal is generated, the secondary collection tank (8) by the secondary vertical conveyor (10). Ball is transported. When the automatic tee-up machine 11 installed on each floor of the indoor golf course is operated, the ball is dropped to each floor through the 50Ø ball supply hose 13 by the air distributor 12 attached to the tertiary collection tank 8. The pressure is released by installing a pressure controller 14 on each floor at the bottom of each supply hose 13 to control the drop pressure of the falling ball. The dropped balls are supplied to a public grade horizontal conveyor 15 buried at the front end of each turn at the foot of the building, and the supplied balls are transported while being aligned in a row on a conveyor belt 15a inclined at about 3 degrees by an asymmetric bearing. It is supplied to the automatic tee-up machine 11 via the small conveyor 17 through the empty discharge port 15b installed in the frame of the horizontal conveyor 15. At this time, the remaining ball during the conveyance of the horizontal conveyor (15) is collected by the recovery device to the primary collecting tank (3) again.

이와 같이 된 본 고안은 골프공의 회수로부터 공급에 이르기 까지 컴퓨터의 제어에 의하여 완전 자동화되므로서 편리한 타격연습을 할 수 있으며 특히 골프공을 자동으로 회수하고 이송하는 동시에 공의 세척과 건조효을을 향상시키고, 무인 감지센서에 의한 공의 입출제어,공의 낙하압력의 제어, 수평이송컨베이어에 의한 자동티업기로의 원활한 이송, 수평이송장치의 매설위치가 타석 정면 선단부로서 건물구조의 안전성이 제고될 수 있어 건축비와 유지비의 절감이 가능한 매우 유용한 실내골프연습장의 골프공 자동 회수 및 공급장치이다.In this way, the present invention is fully automated by the control of the computer from the recovery of the golf ball to the supply, so that convenient hitting practice can be performed. Especially, the golf ball is automatically recovered and transported, while improving the washing and drying effect of the ball. The entrance and exit control of the ball by the unmanned sensor, the control of the drop pressure of the ball, the smooth transfer to the automatic tee-up by the horizontal transfer conveyor, and the embedding position of the horizontal transfer device can enhance the safety of the building structure as the front end of the plate. It is a very useful automatic golf ball recovery and supply device for indoor golf practice range that can reduce construction cost and maintenance cost.

Claims (3)

타구된 공을 회수하여 세척하고 건조하여 티업기에 공급하는 실내골프장의 골프공 회수 및 공급장치에 있어서, 타구된 공을 회수하는 수평컨베이어(2), 회수된 공을 집구하는 1차집구탱크(3), 집구된 공을 2차집구탱크(4)로 이송시키는 1차수직 컨베이어(6), 공을 세척하고 건조시키는 세척기(7)와 건조기(7a), 솔(7b), 송풍기(7c), 건조히터(7d), 감지센서(5) 및 2차집구탱크(4), 집구된공을 옥탑부에 위치한 3차집구탱크(8)로 이송시키는 2차 수직컨베이어(10), 3차집구탱크(8)에 집구된 공을 각층의 타석부로 공급하는 공분배기(12), 공분배기(12)에서 낙하된 공의 낙하압을 제어하는 낙하압력제어장치(14), 낙하된 공을 이송시키는 수평컨베이어(15), 수평컨베이어(15)에 의해 이송된 공을 자동티업기(11)로 이송하는 소형컨베이어(16) 및 자동티업기(11)로 구성됨을 특징으로 하는 실내골프연습장의 골프공 자동회수 및 공급장치In the golf ball recovery and supply apparatus of the indoor golf course to recover the ball, washed, dried and supplied to the tee-up, a horizontal conveyor (2) for recovering the ball hit, a primary tank (3) collecting the recovered ball ), A primary vertical conveyor (6) for conveying the collected ball to the secondary collecting tank (4), a washing machine (7) and a dryer (7a), a brush (7b), a blower (7c) for washing and drying the ball, Drying heater (7d), detection sensor (5) and secondary collecting tank (4), secondary vertical conveyor (10), tertiary collecting tank to transfer the collected ball to the secondary collecting tank (8) located in the rooftop part (12) a ball distributor 12 for supplying the ball collected in each floor to the at-batting part of the floor, a drop pressure controller 14 for controlling the drop pressure of the ball dropped from the ball distributor 12, and a horizontal ball for transferring the dropped ball; Conveyor 15, characterized by consisting of a small conveyor 16 and the automatic tee-up machine 11 for transferring the ball conveyed by the horizontal conveyor (15) to the automatic tee-up machine (11). Indoor golf driving range golf ball collection and automatic supply of the 제 1항에 있어서, 1차수직이송 컨베이어(6)는 어태치멘트체인(6a)으로 구성되고 체인에 버킷(6b)을 부착하여 공을 이송함을 특징으로 하는 실내골프연습장의 골프공 자동회수 및 공급장치The method of claim 1, wherein the first vertical conveying conveyor (6) is composed of an attachment chain (6a) and the ball is attached to the bucket (6b) to the ball to transport the ball automatically in the indoor golf practice range And feeder 제 1항에 있어서, 세척기(7)는 원상회복력이 강한 나일론재솔(7b) 사이를 통과시켜 직열처리함을 특징으로 하는 실내골프연습장의 골프공 자동회수 및 공급장치2. The automatic recycling and supplying device of a golf ball of an indoor golf practice range according to claim 1, wherein the washing machine (7) passes through a nylon resilient member (7b) having strong original resilience and heats directly.
KR2019980022776U 1998-11-23 1998-11-23 Automatic golf ball recovery and supply system for indoor golf practice KR200255994Y1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100898688B1 (en) 2007-10-23 2009-05-22 정연중 The generation systeam of electricity from practice golfing golf link withdrow glof ball
KR100972145B1 (en) 2008-09-01 2010-07-23 이상하 Golf ball recovery device of golf practice range
KR200452460Y1 (en) 2008-12-26 2011-03-02 조완제 Dispenser of golf ball
KR101108013B1 (en) 2011-04-18 2012-01-25 김예림 Collection device for hitting ball
KR102046793B1 (en) * 2019-07-08 2019-11-20 조병구 Complex court for multi sports having automatic recovery and supply ball system
US11083952B2 (en) 2018-07-10 2021-08-10 Byoungkoo CHO Multi-sport and multi-court structure capable of automatically collecting and supplying ball

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100473655B1 (en) * 2002-03-04 2005-03-08 시 명 김 Lifting device for sending vertically golf-ball
KR101031948B1 (en) * 2009-04-10 2011-04-29 (주)제우테크 An Automatic system for Supplying the Golf Ball

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100898688B1 (en) 2007-10-23 2009-05-22 정연중 The generation systeam of electricity from practice golfing golf link withdrow glof ball
KR100972145B1 (en) 2008-09-01 2010-07-23 이상하 Golf ball recovery device of golf practice range
KR200452460Y1 (en) 2008-12-26 2011-03-02 조완제 Dispenser of golf ball
KR101108013B1 (en) 2011-04-18 2012-01-25 김예림 Collection device for hitting ball
US11083952B2 (en) 2018-07-10 2021-08-10 Byoungkoo CHO Multi-sport and multi-court structure capable of automatically collecting and supplying ball
KR102046793B1 (en) * 2019-07-08 2019-11-20 조병구 Complex court for multi sports having automatic recovery and supply ball system

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