Catching machine

Abstract

This disclosure provides a catching machine for automatically catching a baseball pitched by a user. According to this disclosure, it is possible to provide a catching machine that can be safely used and accurately catch only baseballs entering the strike zone, enabling pitching practice for both amateurs and professional pitchers.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is a U.S. Bypass Continuation Application of International Application No. PCT / KR2024 / 009759, filed on Jul. 9, 2024, which claims priority to and the benefit of Korean Patent Application No. 10-2023-0088741, filed on Jul. 9, 2023, Korean Patent Application No. 10-2023-0088742, filed on Jul. 9, 2023, Korean Patent Application No. 10-2023-0088743, filed on Jul. 9, 2023, and Korean Patent Application No. 10-2023-0138109, filed on Oct. 16, 2023, and the disclosure of which is incorporated herein by reference in its entirety.BACKGROUNDTechnical Field

[0002] This disclosure relates to a catching machine for automatically catching a flying baseball.Background Art

[0003] Generally, in relation to baseball, the games mainly played by ordinary people include betting games and pitching games. The pitching games are classified into a speed measurement game for measuring the speed of a baseball and an accuracy measurement game for pitching to an accurate position within the strike zone.

[0004] In the speed measuring game or the accuracy measuring game, the baseballs thrown by users hit a mat or cloth and fall to the floor. That is, in the pitching game, there is no means to catch the baseballs thrown by the users.

[0005] If there is a catching means that catches the baseballs thrown by users in the pitching game, interest in the pitching game can be increased.

[0006] In particular, if a catching means that can catch a baseball only when the baseball thrown by the user exactly enters the strike zone is implemented, the interest in the pitching game can be further increased.

[0007] In addition, if the risk of injury to young children and others are very low due to a low possibility of malfunction, users can safely enjoy pitching games.SUMMARYTechnical Problem

[0008] An object of this disclosure is to provide a catching machine that can be safely used and accurately catch only baseballs entering the strike zone, enabling pitching practice for both amateurs and professional-level pitchers.Technical Solution

[0009] According to this disclosure for achieving the above-described objectives, a catching machine includes: a glove; a frame module fitted into the glove and configured such that the glove catches or releases a baseball; a driving module connected to the frame module and including a cylinder with a piston that moves horizontally; a sensor module for sensing a baseball pitched toward the glove; and a control module for controlling the sensor module and the driving module so that the driving module is driven when the baseball is detected by the sensor module. The frame module includes: a plate to which the driving module is fixed; a frame support part fixed to the piston of the cylinder and formed with a rail-shaped groove inside for vertical movement; a first roller and a second roller that move vertically along the rail-shaped groove in response to the horizontal movement of the piston; T-shaped first and second frames respectively connected to the first and second rollers; and glove frames extending respectively from the first and second frames and fitted into the glove. When the frame support part moves forward and backward by the horizontal movement of the piston, the glove may be configured to perform catching and releasing operations, respectively.

[0010] Here, the cylinder comprises an electric cylinder; the driving module further comprises a servo motor configured to provide power to the electric cylinder; a screw embedded in the electric cylinder and having one end connected to the piston; and a timing belt configured to interconnect the other end of the screw and a driving shaft of the servo motor; when the screw rotates forward by rotation of the servo motor, the piston moves forward while being exposed, and when the screw rotates backward, the piston moves backward while being retracted.

[0011] Here, the cylinder may include an air pressure cylinder; and the driving module may include: a compressor configured to provide compressed air to the air pressure cylinder; and a solenoid valve configured to control the compressed air provided from the compressor to control the horizontal movement of the air pressure cylinder.

[0012] Here, the compressor includes: an air tank containing compressed air at a maximum pressure of 5 bar to 15 bar; a pressure sensor sensing the pressure of the compressed air in the air tank; a pump compressing and supplying air to the air tank; and a motor providing power to the pump, wherein the control module controls the motor to start driving when the pressure of the compressed air sensed by the pressure sensor decreases to 65% to 85% of the maximum pressure, thereby allowing the glove to perform continuous catching operations even at time intervals of 30 seconds or less by replenishing air to the air tank.

[0013] Here, the sensor module includes a first sensor unit located in front of the glove; and a second sensor unit located in front of the first sensor unit, and the control module may cause the driving module to operate only when the baseball pitched toward the glove is detected by both the first sensor unit and the second sensor unit.

[0014] Here, the first sensor unit includes a first left and right sensor and a second left and right sensor, each having a length of 10 cm to 51 cm and positioned at the front left and right sides of the glove; and the second sensor unit includes a first vertical sensor and a second vertical sensor, each having a length of 20 cm to 61 cm and positioned at the front vertical sides of the glove, and the control module may cause the driving module to operate only when the baseball passes through a region corresponding to a height of 10 cm to 51 cm and a width of 20 cm to 61 cm.

[0015] Here, the first sensor unit is positioned spaced apart from the glove by a distance of 3 cm to 20 cm, and the control module controls the driving module to be driven immediately when the baseball is detected by the first sensor unit, so that the glove can catch the baseball at various speeds ranging from 50 km / h to 160 km / h.

[0016] Here, the second sensor unit is spaced apart from the first sensor unit by a distance of 30 cm to 70 cm, and the control module calculates the speed of the baseball by dividing the distance between the second sensor unit and the first sensor unit by the time interval during which the baseball is detected by the second sensor unit and the first sensor unit, and controls the driving module so that it does not operate when the speed of the baseball is less than 50 km / h.Advantageous Effects

[0017] According to the above-described configuration, it is possible to provide a catching machine that has a low possibility of malfunction, allowing even young children to use it safely, and that accurately catches only baseballs entering the strike zone, enabling pitching practice not only for ordinary people but also for professional pitchers.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a diagram illustrating a catching machine according to an embodiment of this disclosure.

[0019] FIG. 2 is a side view illustrating the catching machine of FIG. 1.

[0020] FIG. 3 is an exploded view illustrating a frame module of the catching machine of FIG. 1.

[0021] FIGS. 4 to 9 illustrate components of the frame module of the catching machine of FIG. 1.

[0022] FIG. 10 is a diagram illustrating a driving module of the catching machine of FIG. 1.

[0023] FIG. 11 is a diagram illustrating a compressor of the driving module of the catching machine of FIG. 1.

[0024] FIG. 12 is a view illustrating a body module of the catching machine of FIG. 1.

[0025] FIG. 13 is a view illustrating the inside of the body module of the catching machine of FIG. 1.

[0026] FIG. 14 is a diagram illustrating a driving module of a catching machine according to another embodiment of this disclosure.

[0027] FIG. 15 is a diagram illustrating an external frame unit of the catching machine of FIGS. 1 and 14.

[0028] FIGS. 16 and 17 are views illustrating a sensor unit mounted on the external frame unit.

[0029] FIG. 18 is a diagram illustrating a strike zone of the catching machine.

[0030] FIGS. 19 to 26 are diagrams illustrating the external frame unit of the catching machine according to another embodiment of this disclosure.DETAILED DESCRIPTION

[0031] Hereinafter, embodiment of this disclosure will be described in detail with reference to the accompanying drawings.

[0032] FIG. 1 illustrates a catching machine 100 according to an embodiment of this disclosure, and FIG. 2 illustrates a side view of the catching machine 100 of FIG. 1.

[0033] Referring to the drawings, the catching machine 100 may include a glove 110, a frame module 120, and a driving module 140.

[0034] Here, the frame module 120 is inserted into the glove 110, such that the glove 110 is configured to catch or release a baseball. Meanwhile, the driving module 140 is connected to the frame module 120 and configured to provide power thereto.

[0035] Hereinafter, a detailed configuration and operation method of the frame module 120 will be described first.

[0036] FIG. 3 is a view illustrating a disassembled frame module 120 of the catching machine 100 of FIG. 1, and FIGS. 4 to 9 are views illustrating components of the frame module 120 of the catching machine 100 of FIG. 1.

[0037] Referring to the drawings, the frame module 120 includes a plate 121, a frame support 122, a first roller 123, a second roller 124, a first frame 125, a second frame 126, and a glove frame 127.

[0038] Here, the driving module 140 is fixed to the plate 121. The plate 121 has a substantially circular flat plate shape and is vertically oriented.

[0039] The piston 142 of the pneumatic cylinder 141 is fixed to the frame support 122, and a rail-shaped groove for vertical movement is formed inside the frame support 122.

[0040] The first roller 123 and the second roller 124 are configured to move up and down along rail-shaped grooves in response to the horizontal movement of the piston 142. The first roller 123 and the second roller 124 each have ring bearings applied to both ends to facilitate rotation and vertical movement along the rail-shaped grooves, thereby facilitating opening and closing operation and preventing wear to improve durability.

[0041] The first frame 125 and the second frame 126 are connected to the first roller 123 and the second roller 124, respectively, and may be configured in a T-shape. The T-shaped first frame 125 and second frame 126 each have a frame fixing portion 128 formed with ring bearings on both sides, facilitating rotation of the first frame 125 and second frame 126 at a predetermined angle. Meanwhile, as shown in the drawings, each of the first frame 125 and second frame 126 may include an auxiliary frame 129 and be implemented in a separable form. That is, the first frame 125 and second frame 126 may each be an integrated T-shape or a separable type. Here, the auxiliary frame 129 is configured so that the angle of the center tab and both end tabs of the component (see drawings) can be adjusted to an appropriate height (maximum height when the machine is opened) upon completion of final installation. Meanwhile, the frame fixing portion 128 mounts bearings at both ends to facilitate rotation of the auxiliary frame 129, thereby smoothing the opening and closing operation while preventing wear and improving durability.

[0042] The glove frame 127 is fitted to the glove 110 and extends respectively from the first frame 125 and the second frame 126. Specifically, two glove frames 127 are formed at each end of the first frame 125 and the second frame 126, respectively. The glove frame 127 is configured such that its length and curved angle (see the drawings) stably capture a ball when the glove 110 is mounted. Meanwhile, the glove frame 127 may be provided with a coil-shaped buffer frame 131 to mitigate the impact generated when the glove frames 127 come into contact with each other during the catching operation of the glove 110.

[0043] Through the above-described configuration, when the frame support unit 122 is advanced and retracted by the horizontal movement of the piston 142, the frame module 120 causes the glove 110 to perform catching and releasing operations, which will be described in detail.

[0044] Since the first roller 123 and the second roller 124 can move while pivoting in the vertical direction around the frame support unit 122, the first roller 123 and the second roller 124 pivot in the vertical direction around the frame support unit 122 according to the horizontal movement of the frame support unit 122.

[0045] Therefore, the first frame 125 and the second frame 126 fixedly connected to the first roller 123 and the second roller 124 move up and down, and the glove frame 127 integrally formed with the first frame 125 and the second frame 126 also moves up and down. Accordingly, the glove 110 fitted to the glove frame 127 is capable of folding and unfolding.

[0046] That is, when the frame support 122 moves horizontally forward, the first roller 123 and the second roller 124 converge around the frame support 122.

[0047] Accordingly, the first frame 125 and the second frame 126 fixedly connected to the first roller 123 and the second roller 124 spread in both directions, and the glove frame 127 integrally formed with the first frame 125 and the second frame 126 also spreads in both directions. Therefore, the glove 110 spreads.

[0048] On the other hand, when the frame support 122 is retracted horizontally, the first roller 123 and the second roller 124 respectively spread around the frame support 122.

[0049] Accordingly, the first frame 125 and the second frame 126 fixedly connected to the first roller 123 and the second roller 124 move toward the center direction, and the glove frame 127 integrally formed with the first frame 125 and the second frame 126 also moves toward the center direction. Accordingly, the glove 110 is folded.

[0050] FIGS. 10 and 11 illustrate the driving module 140 of the catching machine 100 of FIG. 1 and the compressor 143, respectively.

[0051] Referring to the drawings, the driving module 140 includes the air pressure cylinder 141, the compressor 143, a solenoid valve 144, a first tube 145, a second tube 146, a third tube 147, a speed controller 148, an air tank 149, a pressure sensor 151, a pump 152, a motor 153, a connection pin 154, and a buffer spring 155.

[0052] Here, the pneumatic cylinder 141 is connected to the frame module 120 and has the piston 142 that moves horizontally.

[0053] The compressor 143 provides compressed air to the pneumatic cylinder 141.

[0054] The solenoid valve 144 controls the horizontal movement of the pneumatic cylinder 141 by controlling the compressed air provided from the compressor 143.

[0055] The first tube 145 supplies compressed air received from the compressor 143 to the solenoid valve 144.

[0056] The second tube 146 supplies compressed air provided from the solenoid valve 144 to the pneumatic cylinder 141 so that the glove 110 performs a catching operation.

[0057] The third tube 147 supplies compressed air provided from the solenoid valve 144 to the pneumatic cylinder 141 so that the glove 110 performs a release operation.

[0058] The speed controller 148 is provided in the third tube 147 and adjusts the flow rate of compressed air supplied to the pneumatic cylinder 141 to control the release speed of the glove 110.

[0059] The air tank 149 may contain compressed air at a maximum pressure of 5 bar to 15 bar.

[0060] The pressure sensor 151 senses the pressure of the compressed air in the air tank 149.

[0061] The pump 152 compresses air and supplies it to the air tank 149.

[0062] The motor 153 provides power to the pump 152.

[0063] The connecting pin 154 is connected at both ends to the solenoid valve 144 and the pneumatic cylinder 141.

[0064] The buffer spring 155 has both ends fixed to the solenoid valve 144 and the pneumatic cylinder 141, and is configured to surround the connection pin 154.

[0065] The driving module 140 configured as described above first drives the pump 152 by the motor 153 so that air in the air tank 149 can be maintained in a compressed state by the pump 152. Here, when the pressure of the compressed air sensed by the pressure sensor 151 decreases to 65% to 85% of the maximum pressure of the air tank 149, the control module starts driving the motor 153 to replenish air in the air tank 149. Accordingly, the pressure of the air tank 149 always maintains a high pressure, enabling the glove 110 to perform continuous catching operations even at time intervals of 30 seconds or less. Thus, it is possible to prevent the catching operation of the glove 110 from slowing down due to repeated pitching when the air tank 149 is at low pressure, thereby preventing failure to properly catch the baseball.

[0066] Meanwhile, the compressed air of the air tank 149 is supplied to the pneumatic cylinder 141 through the solenoid valve 144, the second tube 146, and the third tube 147. Here, the second tube 146 is connected to the rear end of the pneumatic cylinder 141, and the third tube 147 is connected to the front end of the pneumatic cylinder 141.

[0067] When the baseball pitched by the pitcher is determined by a sensor module 180 to have entered the strike zone, the control module causes the driving module 140 to operate. Specifically, the control module controls the solenoid valve 144 to supply compressed air to the second tube 146. The compressed air supplied to the rear end of the pneumatic cylinder 141 through the second tube 146 pushes the piston 142 in the pneumatic cylinder 141 to move forward at high speed, thereby causing the glove 110 to perform a rapid catching motion.

[0068] When a predetermined time elapses, the control module controls the solenoid valve 144 to supply compressed air to the third tube 147. The compressed air supplied to the front end of the pneumatic cylinder 141 through the third tube 147 retracts the piston 142 in the pneumatic cylinder 141, causing the glove 110 to perform a release operation. At this time, the speed controller 148 of the third tube 147 is configured as a valve that adjusts the size of the hole in the air passage to control the amount of compressed air, whereby the piston 142 of the pneumatic cylinder 141 retracts slowly, and the glove 110 performs the release operation slowly.

[0069] Meanwhile, the solenoid valve 144 is connected to the pneumatic cylinder 141 by the connection pin 154 and the cushioning spring 155. According to this configuration, the impact generated by the quick catching operation of the glove 110 is mitigated before being transmitted to the solenoid valve 144. As a result, sensitive circuits provided in the solenoid valve 144 can be protected from the impact, thereby enhancing long-term durability.

[0070] Referring to FIG. 12, a body module 160 of the catching machine 100 of FIG. 1 is illustrated.

[0071] Referring to the drawing, the body module 160 supporting the frame module 120 includes a body 161, a rail beam 162, a lower plate 163, a rail bracket 164, and a coil spring 165.

[0072] Here, the body 161 is fixed to the bottom surface or configured to be movable as shown in FIG. 13.

[0073] The rail beam 162 is disposed horizontally at the upper end of the body 161, in the direction in which the piston 142 of the pneumatic cylinder 141 advances and retracts.

[0074] The lower plate 163 is connected to the frame module 120.

[0075] The rail bracket 164 is fixed to the lower surface of the lower plate 163 and is movably fitted into the rail beam 162.

[0076] The coil spring 165 is fitted to the rail beam 162.

[0077] According to this configuration, during the catching operation of the glove 110, the coil spring 165 cushions the impact received by the frame module 120 by supporting the rail bracket 164. Specifically, when the piston 142 of the pneumatic cylinder 141 moves forward strongly and the glove 110 performs the catching operation, the frame module 120 moves backward, causing the lower plate 163 to also move backward. At this time, the rail bracket 164 connected to the lower plate 163 moves backward along the rail beam 162, whereby the coil spring 165 supports the rail bracket 164 and thereby mitigates the impact.

[0078] Referring to FIG. 13, the inside of the body module 160 of the catching machine 100 of FIG. 1 is illustrated.

[0079] Referring to the drawing, the body module 160 further includes a bottom plate 166, a vertical moving plate 167, a cylinder 168, two bearings 169, a left-right moving plate 163, a female screw bracket 171, a screw 172, a motor 173, a wheel 174, and a buffer spring 175.

[0080] Here, the vertical moving plate 167 is positioned on the upper side of the bottom plate 166.

[0081] The cylinder is positioned between the bottom plate 166 and the vertically moving plate 167, and has a piston 176 that moves vertically.

[0082] Two bearings 169 are provided on the upper surface of the moving plate 167.

[0083] The left-right moving plate 163 is positioned on the upper side of the up and down moving plate 167. Here, the left-right moving plate 163 is the same as the lower plate 163 described with reference to FIG. 12.

[0084] The female screw bracket 171 is provided on the lower surface of the left-right moving plate 163.

[0085] The screw 172 is screwed to the female screw bracket 171, and both ends are connected to two bearings 169.

[0086] The motor 173 rotates the screw 172.

[0087] The wheel 174 is positioned at the lower end of the bottom plate 166. The buffer spring 175 is provided between the wheel 174 and the bottom plate 166. Accordingly, the impact received by the frame module 120 during the catching operation of the glove 110 can be further buffered.

[0088] According to the above configuration, the position of the glove 110 can be adjusted upward, downward, left, and right. Specifically, when the control module controls the cylinder 168 to extend or retract the piston 176, the vertically moving plate 167 moves up or down, thereby moving the frame module 120 and the glove 110 vertically. In addition, when the control module controls the motor 173 to rotate the screw 172 forward or backward, the female screw bracket 171, which is screwed to the screw 172, moves left or right. Accordingly, the left-right moving plate 163 connected to the female screw bracket 171 also moves left or right, thereby moving the frame module 120 and the glove 110 horizontally.

[0089] FIG. 14 illustrates a driving module 140′ of a catching machine 100 according to another embodiment of this disclosure.

[0090] Referring to the drawing, the driving module 140′ of the catching machine 100 includes an electric cylinder 141′, a piston 142′, a screw 143′, a servo motor 144′, and a timing belt 145′.

[0091] Here, the electric cylinder 141′ has a size compatible with the pneumatic cylinder 141 in the above-described embodiment.

[0092] The piston 142′ is connected to the frame module 120 and is configured to move horizontally.

[0093] The screw 143′ is embedded in the electric cylinder 141′ and is connected to the piston 142′ at one end.

[0094] The timing belt 145′ interconnects the other end of the screw 143′ and the drive shaft of the servo motor 144′.

[0095] The operation of the catching machine 100 according to the above-described configuration is as follows.

[0096] When the control module controls the servo motor 144′ to provide power to the screw 143′ via the timing belt 145′, the piston 142′ can move forward and backward by the rotation of the screw 143′. Specifically, when the servo motor 144′ rotates in the forward direction and the screw 143′ rotates in the forward direction, the piston 142′ is exposed and moves forward, causing the glove 110 to perform a catching operation; and when the servo motor 144′ rotates in the reverse direction and the screw 143′ rotates in the reverse direction, the piston 142′ is retracted and moves backward, causing the glove 110 to perform a release operation. Here, the control module controls the rotation speed to slow down when the servo motor 144′ rotates in the reverse direction, so that the glove 110 performs the release operation more slowly than the catching operation.

[0097] According to this configuration, the air pressure cylinder 141, the compressor 143, the solenoid valve 144, the first tube 145, the second tube 146, the third tube 147, the speed controller 148, the air tank 149, the pressure sensor 151, the pump 152, the motor 153, the connecting pin 154, and the cushioning spring 155 in the above-described embodiments may all be replaced.

[0098] In addition, the possibility that the pressure of the air in the air tank 149 decreases during continuous pitching of the pitcher, causing the catching operation of the glove 110 to slow down or fail to operate, can be eliminated, and noise caused by the operation of the compressor 143 can also be eliminated.

[0099] FIG. 15 is a diagram illustrating an external frame unit 181 of the catching machine 100 of FIGS. 1 and 14, FIGS. 16 and 17 are diagrams illustrating a sensor unit mounted on the external frame unit 181, and FIG. 18 is a diagram for explaining a strike zone of the catching machine 100.

[0100] Referring to the drawings, the sensor module 180 includes an external frame unit 181, a first sensor unit 184, a second sensor unit 191, and a sensor moving unit.

[0101] Here, the external frame unit 181 includes a vertical outer frame 182 and a horizontal outer frame 183.

[0102] The vertical outer frame 182 is spaced apart from the glove 110 by a distance of 3 cm to 20 cm.

[0103] The horizontal outer frame 183 is spaced apart from the vertical outer frame 182 by a distance of 30 cm to 70 cm.

[0104] The first sensor unit 184 is mounted on the vertical outer frame 182 so as to be movable up and down.

[0105] The second sensor unit 191 is mounted to the horizontal outer frame 183 so as to be movable left and right.

[0106] The sensor moving unit is configured to move the first sensor unit 184 and the second sensor unit 191 up, down, left, and right. The sensor moving unit includes a rail, a screw, a motor, and a female screw bracket. Here, the rail is formed along the longitudinal direction on the vertical outer frame 182 and the horizontal outer frame 183, respectively. The screw is disposed inside the rail along its longitudinal direction. The motor is connected to the screw to rotate it. The female screw bracket is provided on the first sensor unit 184 and the second sensor unit 191, respectively, and is screw-coupled to the screw.

[0107] Meanwhile, the first sensor unit 184 and the second sensor unit 191 will be described in more detail as follows.

[0108] First, the first sensor unit 184 includes a first left and right sensor 185 and a second left and right sensor 186.

[0109] Here, the first left and right sensor 185 includes a first left and right sensor body 187 having a length of 10 cm to 51 cm and a left and right light emitting element 188. The first left and right sensor 185 preferably has a length of 22 cm to 37 cm. The left and right light emitting element 188 are arranged along the longitudinal direction of the first left and right sensor body 187, spaced at intervals smaller than the diameter of a baseball, and are configured as infrared LED.

[0110] The second left and right sensor 186 includes a second left and right sensor body 189 having a length of 10 cm to 51 cm and a left and right light receiving elements 190. The second left and right sensor 186 preferably has a length of 22 cm to 37 cm. The left and right light receiving elements 190 are arranged along the longitudinal direction of the second left and right sensor body 189, spaced apart by a distance smaller than the diameter of a baseball, detect infrared rays emitted from the left and right light emitting elements 188 with a response speed of 0.1 ms to 2 ms, and are composed of photodiodes.

[0111] Next, the second sensor unit 191 includes a first vertical sensor 192 and a second vertical sensor 193.

[0112] Here, the first vertical sensor 192 includes a first vertical sensor body 194 having a length of 20 cm to 61 cm and a vertical light-emitting device 195. The first vertical sensor 192 preferably has a length of 37 cm to 47 cm. The vertical light-emitting devices 195 are arranged along the longitudinal direction of the first vertical sensor body 194, spaced apart by a distance smaller than the diameter of the baseball, and comprise infrared LEDs.

[0113] The second vertical sensor 193 includes a second vertical sensor body 196 having a length of 20 cm to 61 cm and a vertical light receiving element 197. The second vertical sensor 193 preferably has a length of 37 cm to 47 cm. The vertical light receiving element 197 is arranged along the longitudinal direction of the second vertical sensor body 196, spaced apart by a distance smaller than the diameter of the baseball, detects infrared rays emitted from the vertical light emitting element 195 with a response speed of 0.1 ms to 2 ms, and is composed of a photodiode.

[0114] The operation of the sensor module 180 configured as described above is as follows.

[0115] First, the control module operates the driving modules 140 and 140′ only when the baseball is sensed by both the first sensor unit 184 and the second sensor unit 191, so that the glove 110 catches the baseball. Here, since the sizes of the first sensor unit 184 and the second sensor unit 191 are 10 cm to 51 cm and 20 cm to 61 cm, respectively, the control module operates the driving modules 140 and 140′ only when the baseball passes through a strike zone corresponding to a height of 10 cm to 51 cm and a width of 20 cm to 61 cm. Preferably, since the sizes of the first sensor unit 184 and the second sensor unit 191 are 22 cm to 37 cm and 37 cm to 47 cm, respectively, the control module operates the driving modules 140 and 140′ only when the baseball passes through a strike zone corresponding to a height of 22 cm to 37 cm and a width of 37 cm to 47 cm. On the other hand, when the baseball is sensed only by one of the first sensor unit 184 and the second sensor unit 191, the control module prevents the driving modules 140 and 140′ from operating and processes the same as a ball.

[0116] Meanwhile, the second sensor unit 191 is positioned spaced apart from the first sensor unit 184 by a distance of 30 cm to 70 cm as described above. Here, the control module calculates the speed of the baseball by dividing the distance between the second sensor unit 191 and the first sensor unit 184 by the time interval during which the baseball is detected by the second sensor unit 191 and the first sensor unit 184, and controls the driving modules 140 and 140′ so that they do not operate when the speed of the baseball is less than 50 km / h. Accordingly, when a child is sensed by both the first sensor unit 184 and the second sensor unit 191 due to a mistake or the like, the catching machine 100 does not operate, thereby preventing personal injury accidents.

[0117] In addition, the catching machine 100 further includes a foot plate installed on the pitcher's mound. The control module controls the driving modules 140 and 140′ to operate only when the baseball is detected by the sensor module 180 within 3 to 10 seconds from the moment the foot plate is clicked. This configuration can further improve safety against accidents involving human injury.

[0118] Meanwhile, the first sensor unit 184 and the second sensor unit 191 are configured to detect the emitted infrared rays with a response speed of 0.1 ms to 2 ms, as described above, and the first sensor unit 184 is positioned spaced apart from the glove 110 by a distance of 3 cm to 20 cm. The control module controls the driving modules 140 and 140′ to be driven immediately when the baseball is detected by the first sensor unit 184. According to this configuration, the catching machine 100 can catch baseballs having various speeds ranging from 50 km / h to 160 km / h. Specifically, when the first sensor unit 184 is positioned farther than 20 cm from the glove 110, a slow baseball may cause the glove 110 to close before the baseball settles on the glove 110, and thus the baseball may not be caught. According to the present disclosure, since the control module is configured to drive the driving modules 140 and 140′ immediately upon detection of the baseball by the first sensor unit 184, the circuit configuration and program logic of the control module can be simplified, and baseballs of various speeds can be caught without complex circuit configurations and program logic.

[0119] Meanwhile, when the position of the frame module 120 and the glove 110 is changed by the body module 160, the first sensor unit 184 and the second sensor unit 191 may move to positions corresponding to the changed position of the glove 110. Such positional movement is performed by the sensor moving unit, and its operation method is the same as that of the left-right moving plate 163 described above. Specifically, when the control module controls the motor to rotate, the screw rotates in the forward or reverse direction, whereby the first sensor unit 184 and the second sensor unit 191 connected to the female screw bracket move along rails formed in the vertical outer frame 182 and the horizontal outer frame 183, respectively. Accordingly, the first sensor unit 184 and the second sensor unit 191 move to match the changed position of the glove 110.

[0120] According to this configuration, when a pitcher wants to practice a sharp pitch that crosses the edge of the official strike zone (position 5 in FIG. 18), the positions of the glove 110 and the sensor module 180 are adjusted accordingly to form a new strike zone (position 1 in FIG. 18), so that a baseball with such a pitch can also be caught.

[0121] FIGS. 19 to 26 are diagrams illustrating an external frame unit 181′ of a catching machine 100 according to another embodiment of this disclosure.

[0122] Referring to the drawings, the external frame unit 181′ may be configured to be foldable or detachable to facilitate movement.

[0123] To this end, the external frame unit 181′ includes a bottom outer frame 182′, a vertical outer frame 183′, a slanted outer frame 184′, a horizontal outer frame 185′, a first auxiliary external frame 186′, a second auxiliary external frame 187′, and a third auxiliary external frame 188′.

[0124] Here, the bottom outer frame 182′ comprises four members, both ends of which are respectively coupled by connecting brackets 189′ to form a rectangular shape.

[0125] Two vertical outer frames 183′ are provided, and are respectively coupled to two bottom outer frames 182′ located on the left and right among the four bottom outer frames 182′.

[0126] Two slanted outer frames 184′ are provided, each coupled to the vertical outer frame 183′, and configured to be inclined toward the front. In addition, they have a telescopic structure to allow length extension.

[0127] A horizontal outer frame 185′ is coupled at both ends to the two slanted outer frames 184′.

[0128] The first auxiliary external frame 186′ comprises three components, two of which are coupled to the bottom outer frame 182′ and have a telescopic structure.

[0129] The second auxiliary external frame 187′ comprises two members, with both ends connected respectively to the bottom outer frame 182′ and the vertical outer frame 183′.

[0130] The third auxiliary external frame 188′ comprises two parts, with both ends connected to the slanted outer frame 184′ and the first auxiliary external frame 186′.

[0131] Here, the first sensor unit 184 is installed on each of the two vertical outer frames 183′. Further, the second sensor unit 191 is installed on the horizontal outer frame 185′ and on the front bottom outer frame 182′ among the four bottom outer frames 182′.

[0132] According to this configuration, when the operator installs the catching machine 100, the external frame unit 181′ can be separated into individual pieces as described above, allowing for easy transportation.

Examples

Embodiment Construction

[0031]Hereinafter, embodiment of this disclosure will be described in detail with reference to the accompanying drawings.

[0032]FIG. 1 illustrates a catching machine 100 according to an embodiment of this disclosure, and FIG. 2 illustrates a side view of the catching machine 100 of FIG. 1.

[0033]Referring to the drawings, the catching machine 100 may include a glove 110, a frame module 120, and a driving module 140.

[0034]Here, the frame module 120 is inserted into the glove 110, such that the glove 110 is configured to catch or release a baseball. Meanwhile, the driving module 140 is connected to the frame module 120 and configured to provide power thereto.

[0035]Hereinafter, a detailed configuration and operation method of the frame module 120 will be described first.

[0036]FIG. 3 is a view illustrating a disassembled frame module 120 of the catching machine 100 of FIG. 1, and FIGS. 4 to 9 are views illustrating components of the frame module 120 of the catching machine 100 of FIG. 1.

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CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is a U.S. Bypass Continuation Application of International Application No. PCT / KR2024 / 009759, filed on Jul. 9, 2024, which claims priority to and the benefit of Korean Patent Application No. 10-2023-0088741, filed on Jul. 9, 2023, Korean Patent Application No. 10-2023-0088742, filed on Jul. 9, 2023, Korean Patent Application No. 10-2023-0088743, filed on Jul. 9, 2023, and Korean Patent Application No. 10-2023-0138109, filed on Oct. 16, 2023, and the disclosure of which is incorporated herein by reference in its entirety.BACKGROUNDTechnical Field

[0002] This disclosure relates to a catching machine for automatically catching a flying baseball.Background Art

[0003] Generally, in relation to baseball, the games mainly played by ordinary people include betting games and pitching games. The pitching games are classified into a speed measurement game for measuring the speed of a baseball and an accuracy measurement game for pitching to an accurate position within the strike zone.

[0004] In the speed measuring game or the accuracy measuring game, the baseballs thrown by users hit a mat or cloth and fall to the floor. That is, in the pitching game, there is no means to catch the baseballs thrown by the users.

[0005] If there is a catching means that catches the baseballs thrown by users in the pitching game, interest in the pitching game can be increased.

[0006] In particular, if a catching means that can catch a baseball only when the baseball thrown by the user exactly enters the strike zone is implemented, the interest in the pitching game can be further increased.

[0007] In addition, if the risk of injury to young children and others are very low due to a low possibility of malfunction, users can safely enjoy pitching games.SUMMARYTechnical Problem

[0008] An object of this disclosure is to provide a catching machine that can be safely used and accurately catch only baseballs entering the strike zone, enabling pitching practice for both amateurs and professional-level pitchers.Technical Solution

[0009] According to this disclosure for achieving the above-described objectives, a catching machine includes: a glove; a frame module fitted into the glove and configured such that the glove catches or releases a baseball; a driving module connected to the frame module and including a cylinder with a piston that moves horizontally; a sensor module for sensing a baseball pitched toward the glove; and a control module for controlling the sensor module and the driving module so that the driving module is driven when the baseball is detected by the sensor module. The frame module includes: a plate to which the driving module is fixed; a frame support part fixed to the piston of the cylinder and formed with a rail-shaped groove inside for vertical movement; a first roller and a second roller that move vertically along the rail-shaped groove in response to the horizontal movement of the piston; T-shaped first and second frames respectively connected to the first and second rollers; and glove frames extending respectively from the first and second frames and fitted into the glove. When the frame support part moves forward and backward by the horizontal movement of the piston, the glove may be configured to perform catching and releasing operations, respectively.

[0010] Here, the cylinder comprises an electric cylinder; the driving module further comprises a servo motor configured to provide power to the electric cylinder; a screw embedded in the electric cylinder and having one end connected to the piston; and a timing belt configured to interconnect the other end of the screw and a driving shaft of the servo motor; when the screw rotates forward by rotation of the servo motor, the piston moves forward while being exposed, and when the screw rotates backward, the piston moves backward while being retracted.

[0011] Here, the cylinder may include an air pressure cylinder; and the driving module may include: a compressor configured to provide compressed air to the air pressure cylinder; and a solenoid valve configured to control the compressed air provided from the compressor to control the horizontal movement of the air pressure cylinder.

[0012] Here, the compressor includes: an air tank containing compressed air at a maximum pressure of 5 bar to 15 bar; a pressure sensor sensing the pressure of the compressed air in the air tank; a pump compressing and supplying air to the air tank; and a motor providing power to the pump, wherein the control module controls the motor to start driving when the pressure of the compressed air sensed by the pressure sensor decreases to 65% to 85% of the maximum pressure, thereby allowing the glove to perform continuous catching operations even at time intervals of 30 seconds or less by replenishing air to the air tank.

[0013] Here, the sensor module includes a first sensor unit located in front of the glove; and a second sensor unit located in front of the first sensor unit, and the control module may cause the driving module to operate only when the baseball pitched toward the glove is detected by both the first sensor unit and the second sensor unit.

[0014] Here, the first sensor unit includes a first left and right sensor and a second left and right sensor, each having a length of 10 cm to 51 cm and positioned at the front left and right sides of the glove; and the second sensor unit includes a first vertical sensor and a second vertical sensor, each having a length of 20 cm to 61 cm and positioned at the front vertical sides of the glove, and the control module may cause the driving module to operate only when the baseball passes through a region corresponding to a height of 10 cm to 51 cm and a width of 20 cm to 61 cm.

[0015] Here, the first sensor unit is positioned spaced apart from the glove by a distance of 3 cm to 20 cm, and the control module controls the driving module to be driven immediately when the baseball is detected by the first sensor unit, so that the glove can catch the baseball at various speeds ranging from 50 km / h to 160 km / h.

[0016] Here, the second sensor unit is spaced apart from the first sensor unit by a distance of 30 cm to 70 cm, and the control module calculates the speed of the baseball by dividing the distance between the second sensor unit and the first sensor unit by the time interval during which the baseball is detected by the second sensor unit and the first sensor unit, and controls the driving module so that it does not operate when the speed of the baseball is less than 50 km / h.Advantageous Effects

[0017] According to the above-described configuration, it is possible to provide a catching machine that has a low possibility of malfunction, allowing even young children to use it safely, and that accurately catches only baseballs entering the strike zone, enabling pitching practice not only for ordinary people but also for professional pitchers.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a diagram illustrating a catching machine according to an embodiment of this disclosure.

[0019] FIG. 2 is a side view illustrating the catching machine of FIG. 1.

[0020] FIG. 3 is an exploded view illustrating a frame module of the catching machine of FIG. 1.

[0021] FIGS. 4 to 9 illustrate components of the frame module of the catching machine of FIG. 1.

[0022] FIG. 10 is a diagram illustrating a driving module of the catching machine of FIG. 1.

[0023] FIG. 11 is a diagram illustrating a compressor of the driving module of the catching machine of FIG. 1.

[0024] FIG. 12 is a view illustrating a body module of the catching machine of FIG. 1.

[0025] FIG. 13 is a view illustrating the inside of the body module of the catching machine of FIG. 1.

[0026] FIG. 14 is a diagram illustrating a driving module of a catching machine according to another embodiment of this disclosure.

[0027] FIG. 15 is a diagram illustrating an external frame unit of the catching machine of FIGS. 1 and 14.

[0028] FIGS. 16 and 17 are views illustrating a sensor unit mounted on the external frame unit.

[0029] FIG. 18 is a diagram illustrating a strike zone of the catching machine.

[0030] FIGS. 19 to 26 are diagrams illustrating the external frame unit of the catching machine according to another embodiment of this disclosure.DETAILED DESCRIPTION

[0031] Hereinafter, embodiment of this disclosure will be described in detail with reference to the accompanying drawings.

[0032] FIG. 1 illustrates a catching machine 100 according to an embodiment of this disclosure, and FIG. 2 illustrates a side view of the catching machine 100 of FIG. 1.

[0033] Referring to the drawings, the catching machine 100 may include a glove 110, a frame module 120, and a driving module 140.

[0034] Here, the frame module 120 is inserted into the glove 110, such that the glove 110 is configured to catch or release a baseball. Meanwhile, the driving module 140 is connected to the frame module 120 and configured to provide power thereto.

[0035] Hereinafter, a detailed configuration and operation method of the frame module 120 will be described first.

[0036] FIG. 3 is a view illustrating a disassembled frame module 120 of the catching machine 100 of FIG. 1, and FIGS. 4 to 9 are views illustrating components of the frame module 120 of the catching machine 100 of FIG. 1.

[0037] Referring to the drawings, the frame module 120 includes a plate 121, a frame support 122, a first roller 123, a second roller 124, a first frame 125, a second frame 126, and a glove frame 127.

[0038] Here, the driving module 140 is fixed to the plate 121. The plate 121 has a substantially circular flat plate shape and is vertically oriented.

[0039] The piston 142 of the pneumatic cylinder 141 is fixed to the frame support 122, and a rail-shaped groove for vertical movement is formed inside the frame support 122.

[0040] The first roller 123 and the second roller 124 are configured to move up and down along rail-shaped grooves in response to the horizontal movement of the piston 142. The first roller 123 and the second roller 124 each have ring bearings applied to both ends to facilitate rotation and vertical movement along the rail-shaped grooves, thereby facilitating opening and closing operation and preventing wear to improve durability.

[0041] The first frame 125 and the second frame 126 are connected to the first roller 123 and the second roller 124, respectively, and may be configured in a T-shape. The T-shaped first frame 125 and second frame 126 each have a frame fixing portion 128 formed with ring bearings on both sides, facilitating rotation of the first frame 125 and second frame 126 at a predetermined angle. Meanwhile, as shown in the drawings, each of the first frame 125 and second frame 126 may include an auxiliary frame 129 and be implemented in a separable form. That is, the first frame 125 and second frame 126 may each be an integrated T-shape or a separable type. Here, the auxiliary frame 129 is configured so that the angle of the center tab and both end tabs of the component (see drawings) can be adjusted to an appropriate height (maximum height when the machine is opened) upon completion of final installation. Meanwhile, the frame fixing portion 128 mounts bearings at both ends to facilitate rotation of the auxiliary frame 129, thereby smoothing the opening and closing operation while preventing wear and improving durability.

[0042] The glove frame 127 is fitted to the glove 110 and extends respectively from the first frame 125 and the second frame 126. Specifically, two glove frames 127 are formed at each end of the first frame 125 and the second frame 126, respectively. The glove frame 127 is configured such that its length and curved angle (see the drawings) stably capture a ball when the glove 110 is mounted. Meanwhile, the glove frame 127 may be provided with a coil-shaped buffer frame 131 to mitigate the impact generated when the glove frames 127 come into contact with each other during the catching operation of the glove 110.

[0043] Through the above-described configuration, when the frame support unit 122 is advanced and retracted by the horizontal movement of the piston 142, the frame module 120 causes the glove 110 to perform catching and releasing operations, which will be described in detail.

[0044] Since the first roller 123 and the second roller 124 can move while pivoting in the vertical direction around the frame support unit 122, the first roller 123 and the second roller 124 pivot in the vertical direction around the frame support unit 122 according to the horizontal movement of the frame support unit 122.

[0045] Therefore, the first frame 125 and the second frame 126 fixedly connected to the first roller 123 and the second roller 124 move up and down, and the glove frame 127 integrally formed with the first frame 125 and the second frame 126 also moves up and down. Accordingly, the glove 110 fitted to the glove frame 127 is capable of folding and unfolding.

[0046] That is, when the frame support 122 moves horizontally forward, the first roller 123 and the second roller 124 converge around the frame support 122.

[0047] Accordingly, the first frame 125 and the second frame 126 fixedly connected to the first roller 123 and the second roller 124 spread in both directions, and the glove frame 127 integrally formed with the first frame 125 and the second frame 126 also spreads in both directions. Therefore, the glove 110 spreads.

[0048] On the other hand, when the frame support 122 is retracted horizontally, the first roller 123 and the second roller 124 respectively spread around the frame support 122.

[0049] Accordingly, the first frame 125 and the second frame 126 fixedly connected to the first roller 123 and the second roller 124 move toward the center direction, and the glove frame 127 integrally formed with the first frame 125 and the second frame 126 also moves toward the center direction. Accordingly, the glove 110 is folded.

[0050] FIGS. 10 and 11 illustrate the driving module 140 of the catching machine 100 of FIG. 1 and the compressor 143, respectively.

[0051] Referring to the drawings, the driving module 140 includes the air pressure cylinder 141, the compressor 143, a solenoid valve 144, a first tube 145, a second tube 146, a third tube 147, a speed controller 148, an air tank 149, a pressure sensor 151, a pump 152, a motor 153, a connection pin 154, and a buffer spring 155.

[0052] Here, the pneumatic cylinder 141 is connected to the frame module 120 and has the piston 142 that moves horizontally.

[0053] The compressor 143 provides compressed air to the pneumatic cylinder 141.

[0054] The solenoid valve 144 controls the horizontal movement of the pneumatic cylinder 141 by controlling the compressed air provided from the compressor 143.

[0055] The first tube 145 supplies compressed air received from the compressor 143 to the solenoid valve 144.

[0056] The second tube 146 supplies compressed air provided from the solenoid valve 144 to the pneumatic cylinder 141 so that the glove 110 performs a catching operation.

[0057] The third tube 147 supplies compressed air provided from the solenoid valve 144 to the pneumatic cylinder 141 so that the glove 110 performs a release operation.

[0058] The speed controller 148 is provided in the third tube 147 and adjusts the flow rate of compressed air supplied to the pneumatic cylinder 141 to control the release speed of the glove 110.

[0059] The air tank 149 may contain compressed air at a maximum pressure of 5 bar to 15 bar.

[0060] The pressure sensor 151 senses the pressure of the compressed air in the air tank 149.

[0061] The pump 152 compresses air and supplies it to the air tank 149.

[0062] The motor 153 provides power to the pump 152.

[0063] The connecting pin 154 is connected at both ends to the solenoid valve 144 and the pneumatic cylinder 141.

[0064] The buffer spring 155 has both ends fixed to the solenoid valve 144 and the pneumatic cylinder 141, and is configured to surround the connection pin 154.

[0065] The driving module 140 configured as described above first drives the pump 152 by the motor 153 so that air in the air tank 149 can be maintained in a compressed state by the pump 152. Here, when the pressure of the compressed air sensed by the pressure sensor 151 decreases to 65% to 85% of the maximum pressure of the air tank 149, the control module starts driving the motor 153 to replenish air in the air tank 149. Accordingly, the pressure of the air tank 149 always maintains a high pressure, enabling the glove 110 to perform continuous catching operations even at time intervals of 30 seconds or less. Thus, it is possible to prevent the catching operation of the glove 110 from slowing down due to repeated pitching when the air tank 149 is at low pressure, thereby preventing failure to properly catch the baseball.

[0066] Meanwhile, the compressed air of the air tank 149 is supplied to the pneumatic cylinder 141 through the solenoid valve 144, the second tube 146, and the third tube 147. Here, the second tube 146 is connected to the rear end of the pneumatic cylinder 141, and the third tube 147 is connected to the front end of the pneumatic cylinder 141.

[0067] When the baseball pitched by the pitcher is determined by a sensor module 180 to have entered the strike zone, the control module causes the driving module 140 to operate. Specifically, the control module controls the solenoid valve 144 to supply compressed air to the second tube 146. The compressed air supplied to the rear end of the pneumatic cylinder 141 through the second tube 146 pushes the piston 142 in the pneumatic cylinder 141 to move forward at high speed, thereby causing the glove 110 to perform a rapid catching motion.

[0068] When a predetermined time elapses, the control module controls the solenoid valve 144 to supply compressed air to the third tube 147. The compressed air supplied to the front end of the pneumatic cylinder 141 through the third tube 147 retracts the piston 142 in the pneumatic cylinder 141, causing the glove 110 to perform a release operation. At this time, the speed controller 148 of the third tube 147 is configured as a valve that adjusts the size of the hole in the air passage to control the amount of compressed air, whereby the piston 142 of the pneumatic cylinder 141 retracts slowly, and the glove 110 performs the release operation slowly.

[0069] Meanwhile, the solenoid valve 144 is connected to the pneumatic cylinder 141 by the connection pin 154 and the cushioning spring 155. According to this configuration, the impact generated by the quick catching operation of the glove 110 is mitigated before being transmitted to the solenoid valve 144. As a result, sensitive circuits provided in the solenoid valve 144 can be protected from the impact, thereby enhancing long-term durability.

[0070] Referring to FIG. 12, a body module 160 of the catching machine 100 of FIG. 1 is illustrated.

[0071] Referring to the drawing, the body module 160 supporting the frame module 120 includes a body 161, a rail beam 162, a lower plate 163, a rail bracket 164, and a coil spring 165.

[0072] Here, the body 161 is fixed to the bottom surface or configured to be movable as shown in FIG. 13.

[0073] The rail beam 162 is disposed horizontally at the upper end of the body 161, in the direction in which the piston 142 of the pneumatic cylinder 141 advances and retracts.

[0074] The lower plate 163 is connected to the frame module 120.

[0075] The rail bracket 164 is fixed to the lower surface of the lower plate 163 and is movably fitted into the rail beam 162.

[0076] The coil spring 165 is fitted to the rail beam 162.

[0077] According to this configuration, during the catching operation of the glove 110, the coil spring 165 cushions the impact received by the frame module 120 by supporting the rail bracket 164. Specifically, when the piston 142 of the pneumatic cylinder 141 moves forward strongly and the glove 110 performs the catching operation, the frame module 120 moves backward, causing the lower plate 163 to also move backward. At this time, the rail bracket 164 connected to the lower plate 163 moves backward along the rail beam 162, whereby the coil spring 165 supports the rail bracket 164 and thereby mitigates the impact.

[0078] Referring to FIG. 13, the inside of the body module 160 of the catching machine 100 of FIG. 1 is illustrated.

[0079] Referring to the drawing, the body module 160 further includes a bottom plate 166, a vertical moving plate 167, a cylinder 168, two bearings 169, a left-right moving plate 163, a female screw bracket 171, a screw 172, a motor 173, a wheel 174, and a buffer spring 175.

[0080] Here, the vertical moving plate 167 is positioned on the upper side of the bottom plate 166.

[0081] The cylinder is positioned between the bottom plate 166 and the vertically moving plate 167, and has a piston 176 that moves vertically.

[0082] Two bearings 169 are provided on the upper surface of the moving plate 167.

[0083] The left-right moving plate 163 is positioned on the upper side of the up and down moving plate 167. Here, the left-right moving plate 163 is the same as the lower plate 163 described with reference to FIG. 12.

[0084] The female screw bracket 171 is provided on the lower surface of the left-right moving plate 163.

[0085] The screw 172 is screwed to the female screw bracket 171, and both ends are connected to two bearings 169.

[0086] The motor 173 rotates the screw 172.

[0087] The wheel 174 is positioned at the lower end of the bottom plate 166. The buffer spring 175 is provided between the wheel 174 and the bottom plate 166. Accordingly, the impact received by the frame module 120 during the catching operation of the glove 110 can be further buffered.

[0088] According to the above configuration, the position of the glove 110 can be adjusted upward, downward, left, and right. Specifically, when the control module controls the cylinder 168 to extend or retract the piston 176, the vertically moving plate 167 moves up or down, thereby moving the frame module 120 and the glove 110 vertically. In addition, when the control module controls the motor 173 to rotate the screw 172 forward or backward, the female screw bracket 171, which is screwed to the screw 172, moves left or right. Accordingly, the left-right moving plate 163 connected to the female screw bracket 171 also moves left or right, thereby moving the frame module 120 and the glove 110 horizontally.

[0089] FIG. 14 illustrates a driving module 140′ of a catching machine 100 according to another embodiment of this disclosure.

[0090] Referring to the drawing, the driving module 140′ of the catching machine 100 includes an electric cylinder 141′, a piston 142′, a screw 143′, a servo motor 144′, and a timing belt 145′.

[0091] Here, the electric cylinder 141′ has a size compatible with the pneumatic cylinder 141 in the above-described embodiment.

[0092] The piston 142′ is connected to the frame module 120 and is configured to move horizontally.

[0093] The screw 143′ is embedded in the electric cylinder 141′ and is connected to the piston 142′ at one end.

[0094] The timing belt 145′ interconnects the other end of the screw 143′ and the drive shaft of the servo motor 144′.

[0095] The operation of the catching machine 100 according to the above-described configuration is as follows.

[0096] When the control module controls the servo motor 144′ to provide power to the screw 143′ via the timing belt 145′, the piston 142′ can move forward and backward by the rotation of the screw 143′. Specifically, when the servo motor 144′ rotates in the forward direction and the screw 143′ rotates in the forward direction, the piston 142′ is exposed and moves forward, causing the glove 110 to perform a catching operation; and when the servo motor 144′ rotates in the reverse direction and the screw 143′ rotates in the reverse direction, the piston 142′ is retracted and moves backward, causing the glove 110 to perform a release operation. Here, the control module controls the rotation speed to slow down when the servo motor 144′ rotates in the reverse direction, so that the glove 110 performs the release operation more slowly than the catching operation.

[0097] According to this configuration, the air pressure cylinder 141, the compressor 143, the solenoid valve 144, the first tube 145, the second tube 146, the third tube 147, the speed controller 148, the air tank 149, the pressure sensor 151, the pump 152, the motor 153, the connecting pin 154, and the cushioning spring 155 in the above-described embodiments may all be replaced.

[0098] In addition, the possibility that the pressure of the air in the air tank 149 decreases during continuous pitching of the pitcher, causing the catching operation of the glove 110 to slow down or fail to operate, can be eliminated, and noise caused by the operation of the compressor 143 can also be eliminated.

[0099] FIG. 15 is a diagram illustrating an external frame unit 181 of the catching machine 100 of FIGS. 1 and 14, FIGS. 16 and 17 are diagrams illustrating a sensor unit mounted on the external frame unit 181, and FIG. 18 is a diagram for explaining a strike zone of the catching machine 100.

[0100] Referring to the drawings, the sensor module 180 includes an external frame unit 181, a first sensor unit 184, a second sensor unit 191, and a sensor moving unit.

[0101] Here, the external frame unit 181 includes a vertical outer frame 182 and a horizontal outer frame 183.

[0102] The vertical outer frame 182 is spaced apart from the glove 110 by a distance of 3 cm to 20 cm.

[0103] The horizontal outer frame 183 is spaced apart from the vertical outer frame 182 by a distance of 30 cm to 70 cm.

[0104] The first sensor unit 184 is mounted on the vertical outer frame 182 so as to be movable up and down.

[0105] The second sensor unit 191 is mounted to the horizontal outer frame 183 so as to be movable left and right.

[0106] The sensor moving unit is configured to move the first sensor unit 184 and the second sensor unit 191 up, down, left, and right. The sensor moving unit includes a rail, a screw, a motor, and a female screw bracket. Here, the rail is formed along the longitudinal direction on the vertical outer frame 182 and the horizontal outer frame 183, respectively. The screw is disposed inside the rail along its longitudinal direction. The motor is connected to the screw to rotate it. The female screw bracket is provided on the first sensor unit 184 and the second sensor unit 191, respectively, and is screw-coupled to the screw.

[0107] Meanwhile, the first sensor unit 184 and the second sensor unit 191 will be described in more detail as follows.

[0108] First, the first sensor unit 184 includes a first left and right sensor 185 and a second left and right sensor 186.

[0109] Here, the first left and right sensor 185 includes a first left and right sensor body 187 having a length of 10 cm to 51 cm and a left and right light emitting element 188. The first left and right sensor 185 preferably has a length of 22 cm to 37 cm. The left and right light emitting element 188 are arranged along the longitudinal direction of the first left and right sensor body 187, spaced at intervals smaller than the diameter of a baseball, and are configured as infrared LED.

[0110] The second left and right sensor 186 includes a second left and right sensor body 189 having a length of 10 cm to 51 cm and a left and right light receiving elements 190. The second left and right sensor 186 preferably has a length of 22 cm to 37 cm. The left and right light receiving elements 190 are arranged along the longitudinal direction of the second left and right sensor body 189, spaced apart by a distance smaller than the diameter of a baseball, detect infrared rays emitted from the left and right light emitting elements 188 with a response speed of 0.1 ms to 2 ms, and are composed of photodiodes.

[0111] Next, the second sensor unit 191 includes a first vertical sensor 192 and a second vertical sensor 193.

[0112] Here, the first vertical sensor 192 includes a first vertical sensor body 194 having a length of 20 cm to 61 cm and a vertical light-emitting device 195. The first vertical sensor 192 preferably has a length of 37 cm to 47 cm. The vertical light-emitting devices 195 are arranged along the longitudinal direction of the first vertical sensor body 194, spaced apart by a distance smaller than the diameter of the baseball, and comprise infrared LEDs.

[0113] The second vertical sensor 193 includes a second vertical sensor body 196 having a length of 20 cm to 61 cm and a vertical light receiving element 197. The second vertical sensor 193 preferably has a length of 37 cm to 47 cm. The vertical light receiving element 197 is arranged along the longitudinal direction of the second vertical sensor body 196, spaced apart by a distance smaller than the diameter of the baseball, detects infrared rays emitted from the vertical light emitting element 195 with a response speed of 0.1 ms to 2 ms, and is composed of a photodiode.

[0114] The operation of the sensor module 180 configured as described above is as follows.

[0115] First, the control module operates the driving modules 140 and 140′ only when the baseball is sensed by both the first sensor unit 184 and the second sensor unit 191, so that the glove 110 catches the baseball. Here, since the sizes of the first sensor unit 184 and the second sensor unit 191 are 10 cm to 51 cm and 20 cm to 61 cm, respectively, the control module operates the driving modules 140 and 140′ only when the baseball passes through a strike zone corresponding to a height of 10 cm to 51 cm and a width of 20 cm to 61 cm. Preferably, since the sizes of the first sensor unit 184 and the second sensor unit 191 are 22 cm to 37 cm and 37 cm to 47 cm, respectively, the control module operates the driving modules 140 and 140′ only when the baseball passes through a strike zone corresponding to a height of 22 cm to 37 cm and a width of 37 cm to 47 cm. On the other hand, when the baseball is sensed only by one of the first sensor unit 184 and the second sensor unit 191, the control module prevents the driving modules 140 and 140′ from operating and processes the same as a ball.

[0116] Meanwhile, the second sensor unit 191 is positioned spaced apart from the first sensor unit 184 by a distance of 30 cm to 70 cm as described above. Here, the control module calculates the speed of the baseball by dividing the distance between the second sensor unit 191 and the first sensor unit 184 by the time interval during which the baseball is detected by the second sensor unit 191 and the first sensor unit 184, and controls the driving modules 140 and 140′ so that they do not operate when the speed of the baseball is less than 50 km / h. Accordingly, when a child is sensed by both the first sensor unit 184 and the second sensor unit 191 due to a mistake or the like, the catching machine 100 does not operate, thereby preventing personal injury accidents.

[0117] In addition, the catching machine 100 further includes a foot plate installed on the pitcher's mound. The control module controls the driving modules 140 and 140′ to operate only when the baseball is detected by the sensor module 180 within 3 to 10 seconds from the moment the foot plate is clicked. This configuration can further improve safety against accidents involving human injury.

[0118] Meanwhile, the first sensor unit 184 and the second sensor unit 191 are configured to detect the emitted infrared rays with a response speed of 0.1 ms to 2 ms, as described above, and the first sensor unit 184 is positioned spaced apart from the glove 110 by a distance of 3 cm to 20 cm. The control module controls the driving modules 140 and 140′ to be driven immediately when the baseball is detected by the first sensor unit 184. According to this configuration, the catching machine 100 can catch baseballs having various speeds ranging from 50 km / h to 160 km / h. Specifically, when the first sensor unit 184 is positioned farther than 20 cm from the glove 110, a slow baseball may cause the glove 110 to close before the baseball settles on the glove 110, and thus the baseball may not be caught. According to the present disclosure, since the control module is configured to drive the driving modules 140 and 140′ immediately upon detection of the baseball by the first sensor unit 184, the circuit configuration and program logic of the control module can be simplified, and baseballs of various speeds can be caught without complex circuit configurations and program logic.

[0119] Meanwhile, when the position of the frame module 120 and the glove 110 is changed by the body module 160, the first sensor unit 184 and the second sensor unit 191 may move to positions corresponding to the changed position of the glove 110. Such positional movement is performed by the sensor moving unit, and its operation method is the same as that of the left-right moving plate 163 described above. Specifically, when the control module controls the motor to rotate, the screw rotates in the forward or reverse direction, whereby the first sensor unit 184 and the second sensor unit 191 connected to the female screw bracket move along rails formed in the vertical outer frame 182 and the horizontal outer frame 183, respectively. Accordingly, the first sensor unit 184 and the second sensor unit 191 move to match the changed position of the glove 110.

[0120] According to this configuration, when a pitcher wants to practice a sharp pitch that crosses the edge of the official strike zone (position 5 in FIG. 18), the positions of the glove 110 and the sensor module 180 are adjusted accordingly to form a new strike zone (position 1 in FIG. 18), so that a baseball with such a pitch can also be caught.

[0121] FIGS. 19 to 26 are diagrams illustrating an external frame unit 181′ of a catching machine 100 according to another embodiment of this disclosure.

[0122] Referring to the drawings, the external frame unit 181′ may be configured to be foldable or detachable to facilitate movement.

[0123] To this end, the external frame unit 181′ includes a bottom outer frame 182′, a vertical outer frame 183′, a slanted outer frame 184′, a horizontal outer frame 185′, a first auxiliary external frame 186′, a second auxiliary external frame 187′, and a third auxiliary external frame 188′.

[0124] Here, the bottom outer frame 182′ comprises four members, both ends of which are respectively coupled by connecting brackets 189′ to form a rectangular shape.

[0125] Two vertical outer frames 183′ are provided, and are respectively coupled to two bottom outer frames 182′ located on the left and right among the four bottom outer frames 182′.

[0126] Two slanted outer frames 184′ are provided, each coupled to the vertical outer frame 183′, and configured to be inclined toward the front. In addition, they have a telescopic structure to allow length extension.

[0127] A horizontal outer frame 185′ is coupled at both ends to the two slanted outer frames 184′.

[0128] The first auxiliary external frame 186′ comprises three components, two of which are coupled to the bottom outer frame 182′ and have a telescopic structure.

[0129] The second auxiliary external frame 187′ comprises two members, with both ends connected respectively to the bottom outer frame 182′ and the vertical outer frame 183′.

[0130] The third auxiliary external frame 188′ comprises two parts, with both ends connected to the slanted outer frame 184′ and the first auxiliary external frame 186′.

[0131] Here, the first sensor unit 184 is installed on each of the two vertical outer frames 183′. Further, the second sensor unit 191 is installed on the horizontal outer frame 185′ and on the front bottom outer frame 182′ among the four bottom outer frames 182′.

[0132] According to this configuration, when the operator installs the catching machine 100, the external frame unit 181′ can be separated into individual pieces as described above, allowing for easy transportation.

Examples

Embodiment Construction

[0031]Hereinafter, embodiment of this disclosure will be described in detail with reference to the accompanying drawings.

[0032]FIG. 1 illustrates a catching machine 100 according to an embodiment of this disclosure, and FIG. 2 illustrates a side view of the catching machine 100 of FIG. 1.

[0033]Referring to the drawings, the catching machine 100 may include a glove 110, a frame module 120, and a driving module 140.

[0034]Here, the frame module 120 is inserted into the glove 110, such that the glove 110 is configured to catch or release a baseball. Meanwhile, the driving module 140 is connected to the frame module 120 and configured to provide power thereto.

[0035]Hereinafter, a detailed configuration and operation method of the frame module 120 will be described first.

[0036]FIG. 3 is a view illustrating a disassembled frame module 120 of the catching machine 100 of FIG. 1, and FIGS. 4 to 9 are views illustrating components of the frame module 120 of the catching machine 100 of FIG. 1.

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Claims

1. A catching machine, comprising:a glove;a frame module fitted into the glove and configured to catch or release a baseball with the glove;a driving module connected to the frame module and including a cylinder having a piston that moves horizontally;a sensor module for sensing a baseball pitched toward the glove; anda control module for controlling the sensor module and the driving module such that the driving module is driven when the baseball is sensed by the sensor module,wherein the frame module comprises:a plate to which the driving module is fixed;a frame support part to which the piston of the cylinder is fixed and in which a rail-shaped groove for vertical movement is formed;a first roller and a second roller that move vertically along the rail-shaped groove in response to the horizontal movement of the piston;a T-shaped first frame and second frame connected to the first roller and the second roller, respectively; anda glove frame extending from the first frame and the second frame and fitted into the glove,wherein the frame support part moves forward and backward by the horizontal movement of the piston so that the glove performs catching and releasing operations, respectively.

2. The catching machine of claim 1,wherein the cylinder comprises an electric cylinder,wherein the driving module further comprises:a servo motor configured to provide power to the electric cylinder;a screw embedded in the electric cylinder and having one end connected to the piston; anda timing belt configured to interconnect the other end of the screw and a driving shaft of the servo motor,wherein when the screw is rotated in a forward direction by rotation of the servo motor, the piston is exposed and moves forward and when the screw is rotated in a reverse direction, the piston is retracted and moves backward.

3. The catching machine of claim 1,wherein the cylinder comprises an air pressure cylinder,wherein the driving module comprises:a compressor configured to provide compressed air to the air pressure cylinder; anda solenoid valve configured to control the horizontal movement of the air pressure cylinder by controlling the compressed air provided from the compressor.

4. The catching machine of claim 3,wherein the compressor comprises:an air tank containing compressed air at a maximum pressure of 5 bar to 15 bar;a pressure sensor configured to sense the pressure of the compressed air in the air tank;a pump configured to compress and supply air to the air tank; anda motor configured to provide power to the pump,wherein the control module controls the motor to start driving when the pressure of the compressed air sensed by the pressure sensor decreases to 65% to 85% of the maximum pressure, thereby allowing the glove to perform continuous catching operations even at time intervals of 30 seconds or less by replenishing air in the air tank.

5. The catching machine of claim 1,wherein the sensor module comprises:a first sensor unit located in front of the glove; anda second sensor unit located in front of the first sensor unit,wherein the control module causes the driving module to operate only when a baseball pitched toward the glove is detected by both the first sensor unit and the second sensor unit.

6. The catching machine of claim 5,wherein the first sensor unit comprises a first left and right sensor and a second left and right sensor each having a length of 10 cm to 51 cm, positioned on the front left and right sides of the glove;wherein the second sensor unit comprises a first vertical sensor and a second vertical sensor each having a length of 20 cm to 61 cm, positioned on the front upper and lower sides of the glove, andwherein the control module causes the driving module to operate only when the baseball passes through a region corresponding to a height of 10 cm to 51 cm and a width of 20 cm to 61 cm.

7. The catching machine of claim 5,wherein the first sensor unit is spaced apart from the glove by a distance of 3 cm to 20 cm,wherein the control module controls the driving module to be driven immediately when the baseball is sensed by the first sensor unit,wherein the glove is configured to catch the baseball at various speeds ranging from 50 km / h to 160 km / h.

8. The catching machine of claim 5,wherein the second sensor unit is spaced apart from the first sensor unit by a distance of 30 cm to 70 cm,wherein the control module calculates the speed of the baseball by dividing the distance between the second sensor unit and the first sensor unit by the time interval during which the baseball is sensed by the second sensor unit and the first sensor unit, and controls the driving module so that it does not operate when the speed of the baseball is less than 50 km / h.

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