JP2006051243A - Ball dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem in a conventional ball dispenser wherein the strength of balls to be put out is too strong, and the loci of the balls to be put out are disordered to prevent the dispensing of balls taking the same locus. <P>SOLUTION: This ball dispenser is provided with a tennis racket 3 turnably supported at a device frame 4 and hitting supplied tennis balls 2, a ball toss mechanism 5 for supplying the tennis balls 2 onto the turning locus of the tennis racket 3; and a swing mechanism 6 for turning the tennis racket 3. The swing mechanism 6 is constituted to be synchronously turnable by one driving motor unit 12 used in common with the ball toss mechanism 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a ball throwing device that automatically supplies a player with a ball such as tennis or baseball, or a table tennis ball.

  As a conventional ball-out device of this type, for example, there is one described in Patent Document 1. Patent Document 1 describes a pitching machine used for baseball batting practice and the like. This pitching machine is composed of a “rotary body having a convex portion that rotates by rotational power given from the outside, and one end portion coaxially positioned with the rotary body in a freely rotating state. A first arm restrained only by rotation in a direction, a second arm having a hand on which a base end portion is rotatably provided at the other end portion of the first arm and a ball is placed on a distal end portion; A first spring that applies a rotational force in the throwing direction to the first arm; and a second spring that is provided across the first arm and the second arm and applies a rotational force in the throwing direction to the second arm. A spring, a rotation restricting portion that is attached to the second arm and restricts the rotation of the second arm, and a rotation restricting portion that contacts the rotation restricting portion and restricts the rotation of the second arm. It is characterized by having "

  According to the pitching machine having such a configuration, “in the middle of rotation of the second arm, the second arm moves the arm when the pitcher throws a ball by the cooperation of the rotation restricting portion and the rotation restricting portion. It is possible to draw a trajectory that simulates the above, and it is expected that the batter can train the timing of hitting a ball thrown by a human.

As another conventional ball-out device, for example, there is a device described in Patent Document 2. Patent Document 2 describes a table tennis trainer robot. This trainer robot is characterized in that "the axis for swinging the forearm (arm) is tilted, the distance before and after the hitting point is increased, and the left and right pitching angles are widened".
JP-A-7-185056 JP-A-5-245238

  However, in the conventional ball-out device as described above, in the mechanism in which the two arms connected in series described in Patent Document 1 swing, the ball when a person throws strongly is thrown out. In response to this, the load on the player who tries to hit it back becomes large. Further, in the mechanism for hitting a bounced ball described in Patent Document 2, the bounce changes depending on the condition (state) of the sphere, and the height and angle of the bounce of the sphere change. For this reason, there is a problem that the trajectory of the ball launched by the hitting tool is not constant, and it is impossible to take out a ball that takes a similar trajectory.

  The problem to be solved is that with the conventional ball-out device, the strength of the ball to be thrown out is too strong, or the trajectory of the ball to be thrown out falls apart and cannot take out the same trajectory. That is the point.

  According to a first aspect of the present invention, there is provided a ball hitting device that is rotatably supported by the device main body and that hits the supplied ball, and a ball toss mechanism that supplies the ball on the rotation trajectory of the hitting tool. And a swing mechanism for rotating the striking tool. The swing mechanism is characterized in that the swing mechanism is configured to be rotatable in synchronization with a single power source common to the ball toss mechanism.

  According to a second aspect of the present invention, the ball toss mechanism includes a guide rail that holds at least one ball at the set position, and a ball feed that feeds the balls held at the set position one by one. And a lever.

  According to a third aspect of the present invention, the guide rail has a guide groove that is continuous in the longitudinal direction, the guide rail is inclined and installed, and the protrusion that can stop the ball in the middle of the guide groove. A set position is formed by providing a portion.

  According to a fourth aspect of the present invention, the swing-out device includes a rotary plate that is rotated by a power source, a flywheel that is rotated by the rotary plate, and a drive gear that is rotated integrally with the flywheel. And a driven gear meshed with the drive gear and fixed to the rotating shaft of the impact tool, and a ball feed lever fixed to the rotating shaft of the flywheel.

  According to a fifth aspect of the present invention, the swing-out device has a swing mechanism in which the drive gear is formed by a toothless gear, and an elastic body that applies a tension spring force to the flywheel is provided, and the dead point due to the spring force of the elastic body is provided. It is characterized in that the tooth portion of the missing gear meshes with the driven gear when the flywheel passes over.

  According to a sixth aspect of the present invention, the ball striking device is characterized in that the impact tool is supported so as to rotate along the inclined surface of the device main body.

  According to the ball launching device of the first aspect of the present invention, the striking device, the ball toss mechanism, and the swing mechanism are provided, and the swing mechanism and the ball toss mechanism are rotated by one power source in synchronization with each other. By doing so, it is possible to provide a simple device having a structure in which the load applied to the hitting tool is small and the ball can be put out with a certain strength and can be operated with only one power source.

  According to the ball launching apparatus of the second aspect of the present invention, the ball toss mechanism is constituted by the guide rail and the ball launching lever, so that the ball launching mechanism can be configured with a simple structure, and the ball 1 It can be taken out one by one and supplied softly on the turning trajectory of the impact tool.

  According to the ball discharging device of the third aspect of the present invention, the ball is reliably formed one by one by forming the guide rail and forming the set position by providing the convex portion in the middle of the groove. Can be set at the set position.

  According to the ball discharge device of the fourth aspect of the present invention, the swing mechanism is constituted by the rotary plate, the flywheel, the drive gear, and the driven gear, and the ball feed lever is fixed to the rotation shaft of the flywheel, whereby the ball feed lever And a striking tool can be given different movements, and the ball sent out by the ball feed lever can be hit with the striking tool to perform a certain ball-out operation.

  According to the ball discharging device of the fifth aspect of the present invention, when the drive gear of the swing mechanism is formed by the toothless gear, the spring force of the elastic body is applied to the flywheel, and the dead point due to the spring force is exceeded. By adopting a configuration in which the tooth portion of the missing gear meshes with the driven gear, the ball can be hit by rotating the hitting tool with the spring force of the elastic body, and the swing mechanism can be configured extremely simply and supplied. A ball of a certain strength can be produced by reliably hitting the sphere.

  According to the sixth aspect of the present invention, the engagement between the tooth portion of the missing gear and the driven gear is released by rotatably supporting the impacting tool on the inclined surface of the main body. The impact tool can be returned to its original position by its own weight, and preparation for the next launching operation can be performed without using power.

  A ball-spinning device capable of reducing the load applied to the hitting tool and surely performing a constant ball-out is realized with a simple structure.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1-9 demonstrates the example of embodiment of the ball | bowl out apparatus of this invention. That is, FIGS. 1 to 5 are explanatory diagrams showing the schematic configuration and operation of an embodiment of the ball discharging device of the present invention, and FIGS. 6 and 7 are explanatory diagrams illustrating the operation of the swing mechanism according to the present invention. 8 and 9 are a plan view and a cross-sectional view taken along the line XX showing the main part of the spherical toss mechanism according to the present invention.

  1 to 5 is a tennis ball launching apparatus 1 that can continuously hit a tennis ball 2 showing a specific example of a ball toward a player. is there. This tennis ball launching device 1 is a device that shows a specific example of a tennis racket 3 that shows a specific example of a hitting tool, and a specific example of a device body that rotatably supports the tennis racket 3 at an appropriate angle with the horizontal direction. A frame 4, a ball toss mechanism 5 for supplying the tennis balls 2 one by one on the rotation trajectory of the tennis racket 3, and a ball mechanism 5, a swing mechanism 6 for rotating the tennis racket 3 and swinging, etc. Has been.

  The device frame 4 is formed of a structure that is three-dimensionally configured by joining, for example, a number of shape steels and plate materials by welding or the like. Specifically, the device frame 4 includes a bottom frame body 7 in which four bottom surface members are connected in a quadrilateral shape, and four vertical frame members 8a to 8d raised at the four corners of the bottom frame body 7; It is composed of three horizontal frame members 9a to 9c and two oblique frame members 10a and 10b spanned between these four vertical frame members 8a to 8d. The first and second vertical frame members 8a and 8b are set to substantially the same height, and the third vertical frame member 8c is set to approximately half the height of the first vertical frame member 8a. The fourth vertical frame member 8d is set sufficiently lower than the third vertical frame member 8c.

  A first horizontal frame member 9a extending in the horizontal direction is stretched between the top portion of the first vertical frame member 8a and the top portion of the second vertical frame member 8b. A second horizontal frame member 9b that extends in the same horizontal direction is stretched between the top of the third vertical frame member 8c and the second vertical frame member 8b. Further, a third horizontal frame member 9c extending in the horizontal direction is stretched between the top of the fourth vertical frame member 8d and the first vertical frame member 8a. Between the top of the fourth vertical frame member 8d and the top of the third vertical frame member 8c, the first oblique frame member 10a inclined at an appropriate angle is stretched. And between the 1st vertical frame material 8a and the 2nd vertical frame material 8b, the 2nd diagonal frame material 10b by the same inclination angle in the same height position so as to correspond to the 1st diagonal frame material 10a. Is over.

  A base plate 11 that is inclined at a predetermined angle with respect to the bottom frame 7 serving as a reference plane of the apparatus is spanned between the first and second oblique frame members 10a and 10b. It is fixed. A swing mechanism 6 is attached to the base plate 11. The swing mechanism 6 is rotationally driven by a drive motor unit 12 showing a specific example of a power source, a rotary gear 13 showing a specific example of a rotating plate driven to rotate by the drive motor unit 12, and the rotary gear 13. The flywheel 14 includes a toothless gear 15 showing a specific example of a drive gear that is rotationally driven integrally with the flywheel 14, a driven gear 16 that is rotationally driven by the toothless gear 15, and the like. Yes.

  The drive motor unit 12 includes an electric motor 20 that is turned on / off by an operation of a power switch (not shown), and a speed reducer 21 that increases the torque by decelerating the rotation of the electric motor 20 and outputs it. . The drive motor unit 12 is fixed to the upper surface of the base plate 11, and the output shaft 21 a of the speed reducer 21 penetrates the base plate 11 and protrudes downward. An output gear 22 is fixed to the output shaft 21 a of the speed reducer 21, and the rotary gear 13 is engaged with the output gear 22.

  As shown in FIGS. 6 and 7, the rotary gear 13 is rotatably supported on the rotary shaft 24 via a bearing member 23 such as a ball bearing. The rotating shaft 24 is rotatably supported by the base plate 11 via a bearing member (not shown). The rotary shaft 24 extends obliquely upward so as to be substantially perpendicular to the upper surface, which is the support surface of the base plate 11, and is held so that its vertical height is constant. A flywheel 14 having a disk shape is integrally fixed to the lower end of the rotating shaft 24. The flywheel 14 and the rotary gear 13 are arranged coaxially with a predetermined gap in the axial direction of the rotary shaft 24.

  On the lower surface of the rotary gear 13, a follower pin 25 that protrudes toward the flywheel 14 is provided. An engagement protrusion 26 is provided on the top surface of the flywheel 14 so as to correspond to the rotation pin 25 and protrudes on the same circumference as the rotation pin 25. The flywheel 14 is rotated in the same direction as the rotary gear 13 by the engagement projection 26 being pressed by the rotation pin 25. On the lower surface of the flywheel 14, a spring receiving pin 27 protruding downward is provided. One end of a coil spring 28 showing a specific example of an elastic body that applies a tension spring force to the flywheel 14 is hooked on the spring receiving pin 27. The other end of the coil spring 28 is latched with a slight tensile force applied to a spring receiving piece 29 provided on the third vertical frame member 8c.

  Further, above the rotating gear 13, a missing gear 15 is coaxially disposed with an appropriate interval. The toothless gear 15 is configured integrally with the rotary shaft 24, and is therefore rotated integrally with the flywheel 14. The toothless gear 15 is formed of a gear having tooth portions 15a provided in approximately half in the circumferential direction and the other half serving as a toothless portion 15b. The toothless gear 15 is installed so that the driven gear 16 faces it. A rotation shaft 31 is passed through the driven gear 16 and is integrally fitted and fixed. The rotation shaft 31 is rotatably supported by the base plate 11 via a bearing member (not shown).

  The tennis racket 3 is integrally fixed to the upper portion of the rotation shaft 31 via a racket holder (not shown). As for the tennis racket 3, the holding part 3a is being fixed to the racket holder in the longitudinal direction in the direction which makes a right angle with the axial direction of the rotating shaft 31. FIG. In this case, the rotation shaft 31 is erected at a right angle on the base plate 11 inclined by a predetermined angle with respect to the ground, and the rotation shaft 31 is erected obliquely. And since the gravity center position of the tennis racket 3 exists in the gut part ahead of the holding | gripping part 3a, the tennis racket 3 of a free state is located in the lowest part with dead weight. When the pivot shaft 31 is pivoted from this state, the tennis racket 3 is pivoted substantially parallel to the upper surface of the base plate 11, and therefore, swinging is performed in a state where the tennis racket 3 is lifted forward with respect to the ground.

  Like the rotary gear 13 and the output gear 22, the driven gear 16 is a normal gear provided with teeth on the entire circumference, and is engaged with the missing gear 15 at the following timing. The meshing is released. In other words, in the initial stage of the operation of the tennis ball launching device 1, the missing tooth portion 15b of the missing gear 15 is opposed to the driven gear 16 and is in a state in which the mutual meshing is released. From this state, when the drive motor unit 12 is started, the rotary gear 13 is rotated. When the flywheel 14 is rotated by the rotary gear 13 and rotates a predetermined angle against the spring force of the coil spring 28, the spring receiving pin 27 is rotated. As a result, the coil spring 28 is pulled.

  At this time, the tooth missing portion 15b is opposed to the driven gear 16 until just before the dead point at which the coil spring 28 is pulled the longest, and no torque is transmitted to the driven gear 16. Thereafter, immediately before the dead point at which the tension of the coil spring 28 is maximized, the tooth portion 15a starts to mesh with the driven gear 16, and torque transmission from the missing gear 15 to the driven gear 16 becomes possible. When the coil spring 28 exceeds the dead point, the spring receiving pin 27 is pulled by the spring force of the coil spring 28, and the tensile force is transmitted from the tooth portion 15 a of the missing gear 15 to the driven gear 16. Accordingly, the rotation shaft 31 is rotated only while the tooth portion 15a of the toothless gear 15 is engaged with the driven gear 16.

  As a result, the tennis racket 3 that is integrally fixed to the rotation shaft 31 is rotated so as to swing around the rotation shaft 31. In this case, the number of teeth of the tooth portion 15a of the missing gear 15 and the number of teeth of the driven gear 16 are determined so that the rotation angle of the tennis racket 3 is 180 degrees or smaller. After that, when the tooth portion 15a of the missing gear 15 passes through the driven gear 16 and the missing tooth portion 15b faces the driven gear 16, the driven gear 16 becomes free due to the release of the meshing. Therefore, the driven gear 16 is rotated by the weight of the tennis racket 3, and the tennis racket 3 is returned to the original position by the weight.

  Moreover, as shown in FIGS. 1-5, the ball | bowl out lever 33 which sends out the tennis ball 2 from the set position one by one is attached to the upper end part of the rotating shaft 24. As shown in FIG. The ball take-out lever 33 is composed of a plate-like piece provided with a through hole on one side in the longitudinal direction, and the rotation shaft 24 is passed through the through hole. A screw portion is provided at the upper end portion of the rotating shaft 24, and the ball take-out lever 33 is sandwiched between two nuts 34 and 34 screwed into the screw portion. By moving the fixing position of the two nuts 34, 34 in the axial direction, the height position of the ball throwing lever 33 can be changed to change the position where the tennis ball 2 is pushed out. Further, by changing the mounting angle (circumferential position) of the ball launch lever 33, the timing of turning the flywheel 14 or the like can be changed to adjust the ball launch timing.

  The ball launching lever 33 is provided with a saddle member 35 adjacent to a specific example of a guide rail for holding at least one tennis ball 2 in the set position. The eaves member 35 is made of a mold material provided with guide grooves 36 having a circular cross section, and is disposed above the third horizontal frame member 9c. One end of the heel member 35 is supported by the first horizontal frame member 9a, and an appropriate inclination angle is set so that the tennis ball 2 supplied to the support side can roll and move naturally due to its own weight. . A midway portion in the longitudinal direction of the flange member 35 is supported by an auxiliary frame member 37. Although not shown, the lower part of the auxiliary frame member 37 is supported by the first vertical frame member 8a so as to be fastened and fixed. By changing the mounting position (height) with respect to the first vertical frame member 8a, the eaves member The inclination angle of 35 can be adjusted.

  A cutout portion 38 for installing the rotating shaft 24 close to each other is provided in the middle portion of the flange member 35 in the longitudinal direction. As shown in FIGS. 8 and 9, in the vicinity of the notch portion 38 of the eaves member 35, a convex portion 40 for stopping the tennis ball 2 that rolls down is provided in the substantially central portion of the guide groove 36. It has been. The size of the convex portion 40 is set to a height at which the tennis ball 2 locked to the convex portion 40 can get over the convex portion 40 relatively easily by the turning operation of the ball-out lever 33. A portion having the convex portion 40 constitutes a ball setting position for sending out the tennis balls 2 one by one.

  The timing at which the tennis balls 2 are sent one by one from the set position is the same as that described above when the sent tennis balls 2 move by rolling on the guide groove 36 of the heel member 35 and fall on the movement track of the tennis racket 3. The setting is made so as to hit the sweet spot in the gut portion of the tennis racket 3 thus rotated. Specifically, since it takes a little time to roll the tennis ball 2 moving in the guide groove 36, the tennis ball 2 starts to roll at a relatively early stage when the flywheel 14 starts to rotate.

  A ball toss mechanism 5 for supplying the tennis ball 2 onto the rotation trajectory of the tennis racket 3 is constituted by the rotating shaft 24, the ball throwing lever 33 and the rod member 35. The drive motor unit 12, the output gear 22, the rotation gear 13, the flywheel 14, the toothless gear 15 and the driven gear 16 constitute a swing mechanism 6 that rotates and swings the tennis racket 3.

  Reference numeral 44 shown in FIGS. 1 to 5 is a ball supply device for supplying the tennis ball 2 to the guide groove 36 of the eaves member 35. The ball supply device 44 may be used to automatically supply the tennis ball 2 to the heel member 35 of the ball toss mechanism 5, or the player may supply the tennis ball 2 to the heel member 35 with his / her hand. May be.

  The tennis ball launching apparatus 1 having such a configuration can be used as follows, for example. FIG. 1 shows a state before the tennis ball launcher 1 is started. In this case, in FIG. 1, two tennis balls 2 are set in advance in the ball toss mechanism 5, but when the ball supply device 44 is used, the tennis ball 2 is automatically moved in conjunction with this device. Can be supplied to the set position. The ball take-out lever 33 of the ball toss mechanism 5 is at a position slightly lowered rearward with respect to the tennis ball 2 at the set position. In addition, the tennis racket 3 of the swing mechanism 6 is in a free state at a position that is most lowered by its own weight.

  The player faces the tennis ball launching apparatus 1 in such a manner as to face the tennis racket 3 in the rotational direction forward by a predetermined distance (for example, 5 m, 10 m, etc.). In this state, a power switch (not shown) is turned on, the drive motor unit 12 is started, and the operation of the apparatus 1 is started.

  When the drive motor unit 12 is started, the torque is transmitted from the output gear 22 to the rotating gear 13 as shown in FIG. 6, and the rotating gear 13 starts rotating. At this time, since the rotary gear 13 is rotatably supported by the rotary shaft 24 via the bearing member 23, the rotary shaft 24 is not rotated integrally with the rotary gear 13, but the rotary gear 13 is rotated. Since the engaging protrusion 26 is disposed on the rotation locus of the pin 25, the flywheel 14 is rotationally driven in the same direction when the follower pin 25 contacts the engaging protrusion 26. At this time, since one end of the coil spring 28 is locked to the spring receiving pin 27 of the flywheel 14, the flywheel 14 is rotated while pulling the coil spring 28.

  Since the flywheel 14 is configured integrally with the rotation shaft 24, the rotation shaft 24 is rotated integrally with the flywheel 14, and the ball toss mechanism 5 fixed to the upper end of the rotation shaft 24 is provided. The ball-out lever 33 is rotated by the same angle. As a result, as shown in FIGS. 8 and 9, the ball-out lever 33 comes into contact with and presses the tennis ball 2 held at the set position of the eave member 35 from the side to prevent the rolling. The team 40 gets over the tennis ball 2. As a result, as shown in FIG. 2, when the tennis ball 2 gets over the convex portion 40, an inclination angle of an appropriate size is set on the eaves member 35, and thereafter the guide groove 36 rotates while rotating by gravity. Roll down.

  At this time, the toothless gear 15 is also integrally formed on the rotating shaft 24 in the same manner as the flywheel 14, but the toothless portion 15 b is rotationally displaced to face the driven gear 16. Therefore, the rotational force of the toothless gear 15 is not transmitted to the driven gear 16, and the tennis racket 3 is held at the initial position.

  When the flywheel 14 rotates a predetermined angle while the tennis ball 2 rolls down the guide groove 36, the coil spring 28 pulled by the spring receiving pin 27 reaches the dead center position of the flywheel 14 that becomes the longest. At this dead center position, the flywheel 14 can turn either to the right or to the left. At this time, the engaging protrusion 26 of the flywheel 14 and the turning pin 25 that presses the engaging protrusion 14 are positioned symmetrically in a direction perpendicular to the center line of the coil spring 28, and are rotated together with the engaging protrusion 26. The engagement with the pin 25 is released.

  Thereafter, when the spring receiving pin 27 exceeds the dead center position, the engagement projection 26 and the engagement with the pin 25 are released, so that the flywheel 14 is pulled by the spring force of the coil spring 28. At this time, as shown in FIG. 7, the toothless gear 15 rotates by a predetermined angle and the tooth portion 15 a starts to mesh with the teeth of the driven gear 16. As a result, the rotational force of the toothless gear 15 is transmitted to the driven gear 16 and the rotating shaft 31 integrated with the driven gear 16 is rotated. In this case, the tennis racket 3 can be rotated with an appropriate rotational speed and rotational force by setting the spring force of the coil spring 28 sufficiently large.

  The rotation timing of the tennis racket 3 and the fall timing of the tennis ball 2 described above are matched. Thereby, as shown in FIG.3 and FIG.4, while being able to supply the tennis ball 2 on the rotation locus | trajectory of the tennis racket 3, the tennis ball 2 can be applied to the sweet spot of a gut. As a result, as shown in FIG. 5, the tennis racket 3 can be launched softly so as to be launched obliquely upward along a preset turning trajectory (launch angle).

  The tennis ball 2 hit in this way can be practiced for hitting the ball by the player facing it hitting it back. In this case, the ball thrown out from the tennis ball launching device 1 is a mountain that is launched so as to be tossed diagonally upward, so that it is possible to supply a ball that is extremely easy for the player to hit. Further, in the ball toss mechanism 5, the tennis ball 2 is supplied onto the rotation trajectory of the tennis racket 3 without falling through the bowl-shaped rail and bouncing to the ground. Therefore, the trajectory of the ball can be kept constant, the tennis ball 2 can be reliably applied to the sweet spot of the tennis racket 3 every time, and the ball with a stable trajectory can be performed.

  As shown in FIG. 5, the tennis racket 3 that has launched the tennis ball 2 is rotated approximately 180 degrees in accordance with the rotation ratio determined by the number of teeth of the tooth portion 15 a of the missing gear 15 and the number of teeth of the driven gear 16. Moved and moved upward. When the meshing between the tooth portion 15a and the driven gear 16 is released, the driven gear 16 is in a free state, so that the tennis racket 3 is rotated in the opposite direction by its own weight and returned to its original position along its trajectory. It is. Thereby, preparation for the next ball-out is completed. By further driving the drive motor unit 12, the next tennis ball 2 held at the set position is ejected through the above-described steps.

  In such a case, the timing at which the tennis ball 2 is sent out from the set position can be adjusted by changing the mounting angle of the ball launch lever 33 with respect to the rotating shaft 24. Furthermore, by changing the inclination angle of the heel member 35, the speed at which the tennis ball 2 rolls down the guide groove 36 can be adjusted to adjust the timing of ball launch. Further, by changing the angle of the gut surface of the tennis racket 3 with respect to the rotation shaft 31, the direction of throwing out, the flight distance, and the like can be adjusted. Furthermore, the swing angle of the tennis racket 3 can also be adjusted by changing the angle of the base plate 11 that rotatably supports the rotation shaft 31 and the like with respect to the ground.

  In this embodiment, since the power source is one of the drive motor units 12, the electric circuit and its control can be simplified, the mechanical configuration can be simplified, and tennis can be played by a simple mechanism. The ball ball ejecting apparatus 1 can be configured. In the above-described embodiment, an example in which the flange member 35 having the semicircular guide groove 36 is used as the guide rail has been described. However, the guide groove may be V-shaped, square, or other shape. Of course. Further, a guide rail may be configured by arranging a plurality of rod-like members in parallel. In addition, although the coil spring is used as the elastic body that pulls the flywheel 14, for example, it may be configured to be pulled by a rubber-like elastic body.

  As described above, the present invention is not limited to the above-described embodiment. In the above-described embodiment, the present invention is applied to the tennis ball launching device 1 for launching the tennis ball 2, but for example, a ping-pong ball launching a ping-pong ball. Strike various balls with a striking tool such as a racket or bat, such as a launching device, a baseball ball launching device that launches a baseball ball (including soft baseball and hard baseball), and a softball ball launching device that launches a softball. The present invention can be applied to various balling devices for balling. The hitting tool used in this case is one corresponding to the ball to be launched, for example, a tennis racket for tennis balls, a table tennis racket for ping-pong balls, and a bat for baseball. As a matter of course, a different type of striking device, for example, a baseball, may be launched with a tennis racket.

  Moreover, in the said Example, the rotation gear 13 is applied as a specific example of a rotating plate, and motive power is transmitted with the gear transmission mechanism from the output gear 22 which fixed the output of the electric motor 20 to the output shaft 21a of the reduction gear 21. FIG. However, instead of this, the rotating plate and the output gear may be configured by a belt wheel, and power may be transmitted by a belt transmission mechanism. As described above, the present invention can be variously modified without departing from the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the state immediately after starting operation | movement, demonstrating schematic structure and the operation | movement of the tennis ball ball-out apparatus which concerns on one Example of the ball-out apparatus of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a schematic configuration and operation of a tennis ball ball dispensing apparatus according to an embodiment of a ball dispensing apparatus of the present invention, and is an explanatory diagram illustrating a state in which a tennis ball is sent out by a ball toss mechanism. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a schematic configuration and an operation of a tennis ball ball dispensing apparatus according to an embodiment of the ball dispensing apparatus of the present invention, and is an explanatory diagram illustrating a state where a tennis ball is supplied from a ball tos mechanism to a swing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the schematic structure and operation | movement of the tennis ball ball-out apparatus which concerns on one Example of the ball-out apparatus of this invention, and shows the state which the tennis racket of a swing mechanism hits a tennis ball. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a schematic configuration and operation of a tennis ball ball-out device according to an embodiment of the ball-out device of the present invention, and is an explanatory diagram illustrating a state after a tennis racket of a swing mechanism has launched a tennis ball. The principal part of the swing mechanism which concerns on the tennis ball ball | bowl out device of this invention is shown, and it is explanatory drawing which shows the state by which meshing of the missing-tooth gear and the driven gear was cancelled | released. The principal part of the swing mechanism which concerns on the tennis ball launching apparatus of this invention is shown, and it is explanatory drawing which shows the state which a missing-tooth gear and a driven gear mesh. It is explanatory drawing which looked at the principal part of the ball | bowl toss mechanism which concerns on the tennis ball ball | bowl out device of this invention from the plane. FIG. 9 is a cross-sectional view taken along the line XX of FIG. 8 showing a main part of a ball toss mechanism relating to a tennis ball launching apparatus of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Tennis ball ball-out device (ball-out device), 2 ... Tennis ball (ball), 3 ... Tennis racket (ball hitting tool), 4 ... Device frame (device main body), 5 ... Ball toss mechanism, 6 ... Swing mechanism, DESCRIPTION OF SYMBOLS 11 ... Base plate, 12 ... Drive motor unit (power source), 13 ... Rotating gear (rotating plate), 14 ... Handwheel, 15 ... Missing gear (driving gear), 15a ... Tooth part, 15b ... Tooth missing part, 16 ... Drive gear, 20 ... Electric motor, 22 ... Output gear, 24 ... Rotating shaft, 25 ... Turning pin, 26 ... Engagement projection, 27 ... Spring receiving pin, 28 ... Coil spring (elastic body), 31 ... Rotating shaft, 33 ... Ball out lever, 35 ... 樋 member (guide rail), 36 ... Guide groove, 40 ... Convex part, 44 ... Ball feeder

Claims (6)

A striking tool that is rotatably supported by the apparatus body and launches a supplied ball;
A ball toss mechanism for supplying the ball on the rotation trajectory of the hitting tool;
A swing mechanism for rotating the impact tool,
The swing-out device is characterized in that the swing mechanism is configured to be rotatable in synchronization with one power source common to the ball toss mechanism.   The ball toss mechanism includes a guide rail that holds at least one sphere at a set position, and a ball feed lever that feeds the spheres held at the set position one by one by rotation. The ball discharging device according to claim 1.   The guide rail has a guide groove that is continuous in the longitudinal direction, and the guide rail is inclined and installed, and a convex portion capable of stopping the sphere is provided in the middle of the guide groove to form the set position. The ball-out device according to claim 2. The swing mechanism includes a rotating plate that is rotated by the power source, a flywheel that is rotated by the rotating plate, a drive gear that is rotated integrally with the flywheel, and a gear that meshes with the drive gear and the impact A driven gear fixed to the rotating shaft of the tool,
2. The ball dispensing apparatus according to claim 1, wherein the ball feeding lever is fixed to a rotation shaft of the flywheel.   In the swing mechanism, the drive gear is formed of a toothless gear, and an elastic body that applies a tension spring force to the flywheel is provided. When the flywheel exceeds a dead center due to the spring force of the elastic body, the missing tooth 5. The balling device according to claim 4, wherein a gear tooth portion is configured to mesh with the driven gear. The ball hitting device according to claim 5, wherein the hitting tool is supported so as to rotate along an inclined surface of the device main body.

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