JP2019126689A - Speed control device, shoot practice machine and speed control method - Google Patents

Abstract

To solve the problem that, when performing shoot practice in basketball, there is no shoot practice machine capable of capturing a ball after shooting, and giving a sharp pass or a mild pass to a shooter.SOLUTION: A speed control device for controlling speed of a throwing object ball includes an electric circuit part provided with an electric circuit for driving a ball throwing part for throwing the throwing object ball, and a changeover part for changing over electric connection between the ball throwing part and the electric circuit part, in which speed of the throwing object ball is controlled by changing over electric connection at the changeover part.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a speed adjustable shoot practice machine.

Basketball shooting machines are installed in game centers and the like, and are used as leisure games in which players compete for the number of times they enter the basket ring. (For example, Patent Document 1) However, for a high-level high school student basketball player who is aiming for an inter-high championship, practical shooting practice cannot be performed with a leisure shooting machine. Also, in basketball games, there were many cases where it was possible to catch and shoot balls of various ball types such as fast passes and gentle passes, and there were no basketball shooters with a wide variety of passes.
On the other hand, baseball pitching machines have pitching machines that throw various types of balls such as fast balls and changing balls. However, the control method is complicated because it is necessary to set the ball speed and rotation speed. (For example, Patent Document 2)

Utility Model Registration No. 3128044 International Patent Application No. 2008/130035

  When practicing basketball shoots, there was no shoot practice machine that captured the ball after it was shot and gave the shooter a sharp or gentle pass.

  In a speed control device for controlling the speed of an object to be thrown, an electric circuit portion provided with an electric circuit for driving a throwing portion for throwing the object to be thrown, an electrical connection between the throwing portion and the electric circuit portion And a switching unit for switching the speed of the thrown object by switching the electrical connection in the switching unit.

  In a shoot practice machine including a speed control device, the speed control device in the first period includes an electric circuit unit provided with an electric circuit for driving a pitching unit for pitching the thrown object, and an electric circuit between the pitching unit and the electric circuit unit. A switching unit for switching the general connection, and controlling the speed of the thrown object by switching the electrical connection in the switching unit.

  In the speed control method for controlling the speed of the pitched object, the method includes a step of driving a pitching unit for pitching the pitched object and a step of switching electrical connection to the pitching unit, The speed of the thrown object is controlled by electrically connecting or not connecting to the pitching unit.

  The present invention can adjust the speed of the thrown object.

It is a shoot practice machine SPM of the mode concerning a 1st embodiment of the present invention. 1 is a perspective view of a pitching device 1 according to a first embodiment of the present invention. It is a perspective view of control device 4 of a mode concerning a 1st embodiment of the present invention. It is a ladder diagram of the 1st sequence control in control device 4 of the mode concerning a 1st embodiment of the present invention. It is a ladder diagram of the 2nd sequence control in control device 4 of the mode concerning a 1st embodiment of the present invention. It is a ladder diagram of the 3rd sequence circuit in control device 4 of the mode concerning the 1st embodiment of the present invention. It is a perspective view of control device 30 of a mode concerning a 2nd embodiment of the present invention. It is a perspective view of the pitching device 40 of the aspect concerning 3rd Embodiment of this invention. It is a ladder diagram of the 4th sequence control and 5th sequence control in control device 4 of the mode concerning a 4th embodiment of the present invention. It is a photograph at the time of using the aspect of this invention in a gymnasium.

  The aspect according to the first embodiment of the present invention, as shown in FIG. 1, is a chute practice machine SPM configured to include a throwing device 1, a capturing device 2, an outlet 3, and a control device 4. is there. The shoot practice machine SPM is a device that injects a ball such as basketball to the outside.

  The pitching device 1 (throwing unit) is a device for pitching a pitched object. The pitching device 1 is a device that passes a ball BL as a pitched object to a player (shooter). As shown in FIG. 2, the pitching device 1 includes a drive device 11, a rotor 12, and a support device 13.

  The driving device 11 includes a motor for driving the rotor 12, and when the ball BL contacts the rotor 12, the force of the motor is applied to the ball BL via the rotor 12 to eject the ball BL to the outside of the throwing device 1. . The drive device 11 is electrically connected to the control device 4 (speed control device), and the motor of the drive device 11 is controlled by the control device 4.

  The rotor 12 is a member that is connected to the drive shaft of the motor of the drive device 11 and is rotated by the motor. The contact surface 14 of the rotor 12 where the rotor 12 and the ball BL come into contact is provided with a protective surface using rubber, fiber, synthetic resin, or the like. Thereby, the contact between the ball BL and the contact surface 14 is improved, and the force of the motor can be efficiently transmitted to the ball BL. Further, when the ball BL contacts the contact surface 14 of the rotor 12, it is possible to prevent the surface of the ball BL from being scratched and the surface of the ball BL from being scraped and scraped.

  The support device 13 is a member that is provided between the rotor 12 and the rotor 12 at an interval approximately equal to the diameter of the ball BL or at an interval smaller than the diameter of the ball BL so that the ball BL contacts the rotor 12. The support device 13 is configured using, for example, a cylindrical member, a pole, or a plate-like member. Accordingly, the force of the driving device 11 can be transmitted to the ball BL by bringing the ball BL into contact with the rotor 12.

  The capturing device 2 is a device that captures the ball BL. The capturing device 2 includes a plurality of poles and a net, and captures the ball BL on the net by setting the net on the pole. For example, the capture device 2 can capture the ball BL after shooting after shooting when performing basketball shooting practice in a gymnasium. At this time, the length and the spread angle of the pole may be set in consideration of the height of the basketball and the distance that the ball BL bounces at the ring.

  The capture device 2 is configured to send the captured ball BL to the pitching device 1. The capture device 2 has a passage 2a and a guiding member 2b, collects the captured balls BL in the passage 2a, and sends the balls BL to the guiding member 2b. Thereby, the captured ball BL can be reliably sent to the pitching device 1. The guide member 2b may be configured integrally with the support device 13 of the pitching device 1. In addition, at least one of the guiding member 2b and the support device 13 may be omitted. It is sufficient if the captured ball BL can be sent to the throwing device 1. Moreover, you may provide the guide member 2b of the capture apparatus 2 in a net | network.

  The injection port 3 is an opening member for injecting the ball BL injected by the pitching device 1 to the outside. The injection port 3 has a cylindrical shape, and the injection direction, height, angle, and the like of the injected ball BL are adjusted. The shape of the injection port 3 may be a columnar shape or a square shape. Further, it may be a member which holds a rail or the like to support the lower side of the ball BL.

  As shown in FIG. 3, the control device 4 includes a power distribution board 20, wiring 21, terminal block 22, power supply wiring 23, sequence wiring 24, electromagnetic relays AR1, AR2, AR3, and timers T1, T2. , T3, and T4 and push buttons PB0, PB1, PB2, and PB3. In the electric circuit EC, electricity is supplied from the power source to the terminal block 22 through the power supply wiring 23. In addition, the electromagnetic relays AR1, AR2, AR3, timers T1, T2, T3, T4, push buttons PB0, PB1, PB2, PB3 are connected from the terminal block 22 using the wiring 21. Various types of sequence circuits can be configured.

  The electric circuit EC is electrically connected to the driving device 11 of the ball throwing device 1 via the sequence wiring 24, and is configured such that the control by each sequence circuit is reflected in the operation of the driving device 11. . In addition, the electric circuit EC is provided with a switching unit including electromagnetic relays AR1, AR2, AR3 and timers T1, T2, T3, T4, and ON / OFF of electrical connection with the drive device 11, that is, It is possible to switch between a state electrically connected to the drive device 11 (contact state) and a state not electrically connected (non-contact state). As an example of sequence control in the electric circuit EC, the following first to third sequence controls PG1 to PG3 are shown.

  In the first sequence control PG1, when the push button PB1 is pressed, a flicker circuit in which an electrical contact state and a non-contact state with the drive device 11 are repeated at a predetermined timing is provided. That is, in the first sequence control PG1, when the push button PB1 is pressed, the electromagnetic relay AR1, the timer T1, the timer T2, and the push button PB1 are configured so that the switch of the driving device 11 is repeatedly turned on and off at the set time. The wiring 21 is configured.

  For example, if the timer T1 is set to 20 seconds and the timer T2 is set to 30 seconds, the electromagnetic relay AR1 is activated 20 seconds after the push button PB1 is pressed, and the circuit is electrically connected. Turns on. Further, 30 seconds after the switch is turned on, the circuit of the electromagnetic relay AR1 is electrically opened and the switch of the drive device 11 is turned off. Furthermore, 20 seconds after the switch is turned off, the electromagnetic relay AR1 is activated to electrically connect the circuit, whereby the switch of the drive device 11 is turned on.

  Thus, according to the set time, the first sequence control PG1 in which the switch of the driving device 11 is repeatedly turned on and off can be performed. As a result, electricity is supplied to the driving device 11 at intervals of 20 seconds for 30 seconds, so that the rotor 12 can be rotated at the first rotational speed, and the ball BL can be ejected from the pitching device 1 at the first ball speed. it can. Here, a ladder diagram of the first sequence control PG1 is shown in FIG.

  The second sequence control PG2 is provided with a flicker circuit that repeats an electrical contact state and a non-contact state to the drive device 11 at a predetermined timing when the push button PB2 is pressed. That is, in the second sequence control PG2, when the push button PB2 is pressed, the electromagnetic relay AR2, the timer T3, the timer T4, and the push button PB2 so that the switch of the driving device 11 is repeatedly turned on and off at the set time. The wiring 21 is configured.

  For example, when the timer T3 is set to 5 seconds and the timer T4 is set to 5 seconds, the electromagnetic relay AR2 is activated 5 seconds after the push button PB2 is pressed, and the circuit is electrically connected. Turns on. Furthermore, five seconds after the switch is turned on, the circuit of the electromagnetic relay AR2 is electrically opened and the switch of the drive device 11 is turned off. Furthermore, 5 seconds after the switch is turned off, the electromagnetic relay AR1 is activated and the circuit is electrically connected, whereby the switch of the drive device 11 is turned on.

  As described above, the second sequence control PG2 in which the switch of the driving device 11 is repeatedly turned on and off can be performed every 5 seconds. As a result, electricity is supplied to the drive device 11 at intervals of 5 seconds or not supplied, so the rotor 12 can be rotated at the second rotational speed, and at a second ball speed that is faster than the first ball speed. The ball BL can be ejected from the throwing device 1. A ladder diagram of the second sequence control PG2 is shown in FIG.

  In the third sequence control PG3, a self-holding circuit is provided in which electrical contact is maintained even after the push button PB3 is pressed and then the hand is released from the PB3. That is, in the third sequence control PG3, the electromagnetic relay AR3, the push button PB3, and the wiring 21 are configured so that when the push button PB3 is pressed, the switch of the pitching device 11 is maintained ON.

  For example, when the push button PB3 is pressed, the electromagnetic relay AR3 is activated and the circuit is electrically connected, whereby the switch of the drive device 11 is turned on. Furthermore, even if the push button PB3 is released, the switch of the drive device 11 is maintained in the state of being in electrical contact by continuing the electrical connection of the circuit of the electromagnetic relay AR3.

  In this way, the third sequence control PG3 can be configured such that the switch of the driving device 11 is continuously turned on. As a result, electricity continues to be supplied to the drive device 11, so that the rotor 12 is continuously rotated at the third rotational speed, whereby the ball BL is thrown from the pitching device 1 at a third ball speed that is faster than the second ball speed. It can be injected. A ladder diagram of the third sequence control PG3 is shown in FIG.

  In the electric circuit EC, a light off circuit is provided in which the first to third sequence controls are electrically cut off by pressing the push button PB0. That is, the electric circuit EC includes the push button PB0 and the wiring 21 so that the switch of the driving device 11 is turned off preferentially when the push button PB0 is pressed. Thus, when it is desired to stop the driving device 11, the push button PB0 may be pushed.

  In the aspect according to the first embodiment of the present invention, when electricity is supplied to the motor of the drive device 11 and when it is not supplied alternately, the motor rotates or does not rotate the rotor 12, Throw the ball BL. That is, since the rotation speed of the rotor 12 can be adjusted by the time set to the timer of the electric circuit EC, the speed of the ball BL ejected from the throwing device 1 can be adjusted. Here, even when electricity is not supplied to the motor, the ball 12 is ejected from the throwing device 1 while the rotor 12 continues rotating by the inertial force.

  Since the aspect according to the first embodiment of the present invention captures the ball BL and issues a pass, practical shoot practice can be performed according to the basketball provided in the gymnasium or the like. Moreover, the aspect concerning 1st Embodiment of this invention can adjust the rotation speed of a motor by ON-OFF of a motor. This eliminates the need for a device for monitoring the rotational speed of the motor or changing the rotational speed, thus simplifying the device. In addition, you can throw balls of various ball speeds and ball types, such as sharp and gentle passes. Further, the speed, height, timing, etc. of the path can be adjusted by the system design of sequence control. Further, the height at which the ball BL is ejected is set high by arranging the position of the rotor 12 in front of the support device 13, ie, in front of the rotor 12 with respect to the ball ejection direction. Can. On the contrary, by disposing the position of the rotor 12 rearward of the support device 13, ie, rearward of the rotor 12 with respect to the ball ejection direction, the height at which the ball BL is ejected is determined. It can be set low to provide a bouncing path.

  In the aspect according to the first embodiment of the present invention, the ball may be easily collected at the passage 2 a by providing a metal pipe or an inclined plate in the capture device 2. Moreover, you may suppress a vibration using rubber | gum or an impact-absorbing mat so that the vibration of the motor of the drive device 11 may not give burden to another member.

  In addition, the apparatus can be miniaturized by omitting the discharge port 3. Further, the speed, angle, timing, and the like of the ball may be adjusted by controlling the driving device 11 in the pitching device 1. Further, the capture device 2 may be omitted and used as a shoot practice machine SPM that supplies only a pass. The pitching device 1 may be configured using, for example, a bench grinder.

  As shown in FIG. 7, the aspect according to the second embodiment of the present invention includes a control unit 30 using a PLC (also referred to as a programmable logic controller, sequencer) instead of a wiring board including a sequence circuit. There is. Since the PLC incorporates functions of electric elements such as an electromagnetic relay and a timer, sequence control can be further simplified. That is, the PLC can switch the electrical connection with the drive device 11. Hereinafter, the description will focus on the parts different from the first embodiment of the present invention, and a part of the description may be omitted.

  The control unit 30 includes a main body unit 31 and a controller 32. The main body unit 31 includes a power supply unit PS1 that supplies electricity from a power source, an INPUT unit 31a that performs input to the main body unit, and an OUTPUT unit 31b that outputs from the main body unit. The INPUT unit 31a is wired to the push buttons PB0, PB1, PB2, and PB3, and transmits an electrical input signal to the main body unit 31 by pressing the push buttons PB0, PB1, PB2, and PB3. The OUTPUT unit 31 b is electrically connected to the drive device 11 of the supply device 1, and is configured so that the operation programmed in the main body unit 31 is reflected in the operation of the drive device 11.

  Setting of the program in the main body 31 is performed using the controller 32. The controller 32 is provided with various logic circuits such as an AND circuit and an OR circuit, and numeric keys for setting element numbers, and the user can easily program a desired sequence circuit. . That is, the program can be set using PLC for the first to third sequence control PG1 to PG3 described in the aspect of the first embodiment.

  Furthermore, the following control can be performed using the supply device 40 shown in FIG. In the aspect according to the third embodiment of the present invention, the pitching device 40 includes a driving device 41 and a rotor 42, and a driving device 51 and a rotor 52.

  The driving device 41 includes a motor for driving the rotor 42, and when the ball BL contacts the rotor 42, the ball BL is ejected to the outside of the throwing device 40. The drive device 11 is electrically connected to the control device 30 (speed control device), and the motor of the drive device 11 is controlled by the control device 4.

  The driving device 51 includes a motor for driving the rotor 52, and when the ball BL contacts the rotor 42, the ball BL is ejected to the outside of the throwing device 40. Further, the drive device 51 is electrically connected to the control device 30, and the motor of the drive device 51 is controlled by the control device 30. The driving device 51 is provided at a position where the ball BL can come into contact with the rotor 52 and the rotor 42 of the driving device 41. In other words, by sandwiching the ball BL between the rotor 42 and the rotor 52, both the motor force of the driving device 41 and the motor force of the driving device 51 are applied to the ball BL.

  The control device 30 is configured using a PLC and includes a main body 61 and a controller 62. The main body 61 includes a power supply PS2 that supplies electricity from a power supply, an INPUT 61a that inputs to the main body, and an OUTPUT 61b that outputs from the main body. The INPUT unit 61a is wired to the push buttons PB70 and PB71, and transmits an electrical input signal to the main body unit 61 by pressing the push buttons PB70 and PB71. The OUTPUT unit 61 b is electrically connected to the driving device 41 and the driving device 51 of the supply device 40 so that the operation programmed in the main body unit 61 is reflected in the operation of the driving device 41 and the driving device 51. Is configured.

  An example of a ladder diagram of control by the sequence circuit programmed in the main body 61 is shown in FIG. In the main body portion 61, a fourth sequence control PG4 for driving the drive device 41 and a fifth sequence control PG5 for driving the drive device 51 are set.

  In the fourth sequence control PG4, when the push button PB71 is pressed, a flicker circuit in which electrical contact and non-contact are repeated at a predetermined timing is provided. That is, in the fourth sequence control PG4, the program of the main body 61 is set so that when the push button PB71 is pressed, the switch of the drive device 41 is repeatedly turned on and off at the set time.

  For example, if the timer T5 is set to 5 seconds and the timer T6 is set to 5 seconds, control is performed so that the switch of the drive device 41 is repeatedly turned on and off every 5 seconds. Thereby, the drive device 41 is controlled to rotate the rotor 42 at intervals of 5 seconds or not. Here, even when the switch of the drive device 41 is turned off, the rotor 42 continues to rotate with inertial force.

  The fifth sequence control PG5 is provided with a self-holding circuit that maintains electrical contact even after the push button PB71 is pressed and then released from the push button PB71. That is, in the fifth sequence control PG5, the program of the main body unit 61 is set so that when the push button PB71 is pressed, the switch of the drive device 51 is maintained ON.

  As described above, the driving device 41 is driven by the flicker circuit (fourth sequence control PG4) in which the ON / OFF of the switch is repeated at intervals of 5 seconds, and the self-holding circuit in which the ON of the switch in the driving device 51 is maintained ( By driving with the fifth sequence control PG5), the ball BL can be ejected from the supply device 40 at the fourth ball speed. That is, by driving the drive device 41 and the drive device 51 with different sequence circuits, it is possible to adjust the ball speed, the ball type, the rotation speed and the like of the ball BL. Furthermore, the height at which the ball BL is ejected can be set high by disposing the position of the rotor 52 in front of the rotor 42, that is, by arranging the rotor 52 in front of the rotor 42 with respect to the ball ejection direction. it can. On the contrary, by arranging the position of the rotor 52 behind the position of the rotor 42, that is, by arranging the rotor 52 behind the rotor 42 with respect to the ball ejection direction, the height at which the ball BL is ejected is determined. It can be set low to provide a bouncing path.

  In addition, since the circuit in which the fourth and fifth sequence circuits are electrically cut off by pressing the push button PB70 is programmed, when the push button PB70 is pressed, the switches of the driving device 41 and the driving device 51 have priority. Will be turned off. Thus, when it is desired to stop the driving device 41 and the driving device 51, the push button PB70 may be pushed.

  In the aspect according to the fourth embodiment of the present invention, since the drive device 41 and the drive device 51 are driven by different sequence circuits, the ball speed, the ball type, the rotation speed and the like of the ball BL ejected from the supply device 40 are adjusted. Can. This eliminates the need for a mechanism for adjusting the rotational speed of the rotor, thereby simplifying the control device.

  FIG. 10 shows an example in which the aspect according to the fourth embodiment of the present invention is installed in the basket ring provided in the gymnasium. Depending on the height of the basket ring, the height, interval, net size, etc. of the poles of the capture device 2 can be adjusted. In addition, according to the purpose of shooting practice such as free throw and three-point shot, the strength and distance of the pass can be adjusted by controlling the driving device using the sequence circuit described above.

  In other embodiments, the driving device 41 and the driving device 51 may be driven by the same sequence circuit. As a result, a driving force can be applied to the ball BL using the rotor 42 and the rotor 52, so that a higher quality pass can be provided.

  The aspect concerning embodiment of this invention is applied similarly also in the speed control method which controls the speed of a pitched object. As an example, the speed control method according to the embodiment of the present invention includes a step of driving the driving device 11 that throws a ball BL as a thrown object, and driving using an electric circuit or PLC including an electromagnetic relay or a timer. Switching the electrical connection to the device 11.

  In the step of switching the electrical connection to the drive device 11, the speed of the ball BL is controlled by electrically connecting or not connecting the drive device 11. At this time, the electric connection to the drive device 11 can be switched by providing a flicker circuit using an electromagnetic relay or a timer in the electric circuit or programming the flicker circuit in the PLC.

  In the aspect of the embodiment of the present invention, the control using the self-holding circuit and the flicker circuit has been described as the sequence control. However, the present invention is not limited to this, and an interlock circuit, a sequential circuit, an AND circuit, a NOR circuit, etc. are used. Thus, a sequence circuit for performing speed control may be set.

  Although the aspect concerning embodiment of this invention was demonstrated regarding the basketball shooting machine, it is not limited to this, In various competitions, such as soccer, volleyball, handball, tennis, and badminton, throwing objects, such as a ball and a shuttle, In controlling the speed, aspects of the invention may be implemented. The pitched objects include various shapes such as a square shape and a polygonal shape.

  The aspect according to the embodiment of the present invention has been described above, but the technical scope of the present invention is not limited to the scope described in the above embodiment. It will be apparent to those skilled in the art that in the above-described embodiment, various improvements and modifications can be made depending on the implementation item, the implementation location, the implementation environment, and the like. It is apparent from the scope of the claims that embodiments to which these changes or improvements are added are also included in the technical scope of the present invention.

1, 40 pitching device (pitching section)
2 Capture device 3 Discharge port 4 Control device 11, 41, 51 Drive device 12, 42, 52 Rotor 13 Support device 14 Contact surface 20 Power distribution board 21 Wiring 22 Terminal block 23 Power supply wiring 24 Sequence wiring AR1, AR2, AR3 Electromagnetic relay T1 , T2, T3, T4, T5, T6 Timer PB0, PB1, PB2, PB3, PB70, PB71 Push button SPM Shooting practice machine BL Ball

Claims (7)

In a speed control device for controlling the speed of a thrown object,
An electric circuit part provided with an electric circuit for driving the pitching part for throwing the pitched object;
A switching unit that switches electrical connection between the pitching unit and the electric circuit unit,
A speed control apparatus that controls the speed of the thrown object by switching electrical connection in the switching unit. In the speed control device according to claim 1,
The electric circuit is provided with a flicker circuit,
A speed control apparatus that controls the speed of the thrown object by switching electrical connection of the switching unit in the flicker circuit. In the speed control device according to claim 1 or 2,
The switching unit includes at least one electromagnetic relay.
A speed control device characterized by controlling the speed of the object to be thrown by switching the electrical connection between the projection unit and the electric circuit unit using the electromagnetic relay. In the speed control device according to claim 3,
The switching unit has at least two timers,
A speed control apparatus that controls the speed of the thrown object by electrically connecting or not connecting the projection unit and the electric circuit unit using the electromagnetic relay and the timer. In the speed control device according to claim 1 or 2,
The switching unit has a sequencer,
A speed control device characterized by controlling the speed of the thrown object by controlling the electrical connection between the projection unit and the electric circuit unit using the sequencer.   A shooting practice machine comprising the speed control device according to claim 1. In a speed control method for controlling the speed of a thrown object,
Driving a throwing portion for throwing the thrown object
Switching the electrical connection to the throwing portion;
A speed control method comprising controlling the speed of the thrown object by electrically connecting or not connecting to the pitching unit in the switching step.