JPS62500564A - pitching device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] pitching device 〔Technical field〕 The present invention relates generally to sports training devices, and more particularly to sports training devices for throwing or ejecting a ball. related to the device.

[Previous technique]

Such known pitching devices (e.g. French Painting Patent No. 2.218.113, September 1974) (Refer to C1, A63B, 69/3B dated May 13) There is a separator that feeds the balls one by one, and a separator that is set on the axis to send the balls one by one. and a ball hitting device. The ball-striking device is mounted on a plane perpendicular to the driving shafts. It cooperates mechanically and kinematically with a drive device that rotates it in a plane.

The extrusion device is located at the exit opening of the separator with a chute and a plunger The ball is shaped as a separator and passes the ball to the rotary movement path of the ball hitting device within the ball hitting zone. It is designed to be supplied from a chute.

Furthermore, the timing mechanism includes an on-axis cam device and a timing device that controls pitching time. The extrusion device then cooperates with the ball striking device. Due to the delay device and cam, the ball will not reach the required instant. In the meantime, the extrusion device ensures that the ball is moved to the rotational movement path of the ball hitting device, and the time delay device is Set pitching time. Therefore, by adjusting the rotation speed of the shaft and ball hitting device, It is possible to change the initial velocity of the ball thrown over a wide range.

Known pitching devices are often useful for pitching purposes. However, thrown Before hitting the ball, the ball in the device is moved to the operating path of the ball hitting device by the extrusion device, but the ball is not thrown. The ball is not fixed in position. The ball is fixed in a precisely defined position that is optimal for hitting the ball. As a result, the balls hit by the ball hitting device will follow a wide variety of irregular trajectories.

The elastic modulus and dimensions of the spheres are different, and the speed of the extrusion device also changes extremely irregularly. must also be taken into account. Therefore, the pitching direction will work if the pitching device is known. Sometimes it changes by chance.

However, this is not always desirable, especially for beginners and experts. This is undesirable when trying to imitate the kicks and shots of talented athletes. random When a range of pitches is desired, it makes sense to have an uncertain pitching direction as mentioned above. Sometimes there are.

However, considering known pitching devices, the pitching area is random as described above. For example, depending on the pre-setting program, various predetermined tennis courts can be used. It was practically impossible to provide the area with pitchable equipment.

[Gist of the present invention]

The main object of the present invention is to provide a pitching device having a structure that allows pitching to be performed reliably in a preset direction. The goal is to provide a

The purpose is to feed the balls one by one, and to create a separator that connects to the base and a separator that is perpendicular to the drive shaft. a ball hitting device attached to a drive shaft supported by the base so as to move angularly in a plane forming and was positioned at the exit opening of the separator to move the ball to the pitching position. an extrusion device, the extrusion device synchronizing the movement thereof and the ball-striking device. This is accomplished by providing a pitching device that cooperates with the ball striking device via a timing mechanism. According to the present invention, the pitching device is provided with a chamber for fixing the ball at the pitching position, and is provided with an acid a chamber cooperates with and communicates with the separate lake, the acid chamber comprising a side wall and two end walls; One of the side walls is located on the side of the plane in which the ball-striking device moves angularly beyond the drive shaft. However, the opposing side wall is actually the extrusion device that fixes the ball, and the wall of the acid chamber is the ball hitting device. The ball is characterized by having a hole through which the ball enters and exits, and an opening through which the ball is thrown. Ru.

According to the present invention, for fixing the ball in the predetermined position through which the ball is hit by the ball hitting device, By using a chamber, the ball can actually be spread over a random area on the tennis court. pitches to designated areas of the tennis court desired by the practitioner or player. It becomes possible to play the ball.

The ball fixing chamber is rotated together with the separator around the drive shaft, and the shaft is perpendicular to the drive shaft. A mechanism is provided to rotate the chamber together with the drive shaft and separator around the line, and the drive shaft One of the members of the mechanism set to It is very advantageous to have a pivotable connection between the two.

The ball fixing chamber and the separator are connected around the drive shaft and around the axis that is perpendicular to the drive shaft. If a rotating mechanism is provided, the connecting element can be rotated around an axis perpendicular to the drive shaft. By rotating the ball, the position of the rotating surface of the ball hitting device can be changed in a predetermined manner, and the ball can be hit again. It becomes possible to change the angle at which the ball device hits the ball.

In this way, the rotation speed of the drive shaft and the movement time of the extrusion device can be adjusted. At the discretion and will of the trainer or the player conducting the training, a predetermined Directs balls to various preset areas of the tennis court at speed and preset pitch intervals It becomes possible to do so.

By providing a ball fixation chamber, the ball can be pitched accurately and reliably to a designated area on the tennis court. The foregoing means that the orientation of the surface of the ball-striking device relative to the ball changes accordingly. By setting the base in a predetermined position to change the pitching direction as desired, achieved.

Preferably, the drive device is located on the coupling element.

The structure of the proposed pitching device is compact and easy to operate due to the above characteristics. It is something that

The chamber rotation mechanism set on the drive shaft is actually a fork, and the arm of the fork is loosely set on the drive shaft and pivoted to the coupling element via a mechanical member of variable length. The heel of the fork is movably mounted and the heel of the fork is connected via another mechanical member of variable length. Preferably, it is pivotally mounted to the base.

Because of this structural feature, the angle of the ball exiting the pitching device can be adjusted horizontally and vertically. It is possible to change the direction of the initial velocity vector of the ball in various predetermined directions. It can be directed in the desired direction.

Similarly, it kinetically cooperates with the drive shaft and is connected to the fork of the chamber rotation mechanism via a flexible member. It is desirable to provide a program control device that connects the

To create complex game situations by providing a program control device It becomes possible to pitch according to a preset program that has great potential.

In principle, by appropriately rotating the device and changing the angle at which the ball-striking device hits the ball, , at a preset rotational speed and speed according to a predetermined program, generally carried out automatically. A series of balls can be pitched to each predetermined area of the tennis court.

Thus, the pitching device according to the present invention can be adapted to a player's training program. The ball can be stably thrown in a desired direction that can be changed accordingly.

Other features and advantages of the invention will be described below with reference to the accompanying drawings, which illustrate embodiments of the invention. Details are given below.

[Description of drawings]

FIG. 1 is a schematic cross-sectional view in the longitudinal direction of the pitching device according to the present invention, and FIG. 2 is an intentionally extruded device. An enlarged view of the arrow in Figure 1 showing only the position; Figure 3 is an enlarged view of arrow B in Figure 1, and Figure 4 is an enlarged view of arrow C in Figure 1. This is a drawing.

[Preferred embodiments of the invention]

A pitching device according to the present invention is a vehicle for driving on a sports ground (not shown). Base 1 (actually a trolley designated by number 1) attached to a ring (omitted in the drawing) Figure 1).

The pitching device is attached to the base 1 and has a horizontal (as shown in Figure 1) longitudinal axis. It includes a housing 2 which is actually shaped as a cylinder with. the housing carries a separator 3 which is held in place so as to feed the balls 4 there eight [11] at a time. , the separator is formed as a coiled spring with a passage 5 adjacent to the housing 2 and has a spherical shape. 4 from a hopper (not shown) to a passageway 5.

There must be constant communication between the hopper and passageway 5 when the pitching device is in various positions. Since there is no coil spring, a tube 6 is provided as a coil spring.

A drive device 7 is provided which is held in the housing 2 and is essentially an electric motor. Drive The shaft 8 of the moving device 7 is accommodated in the housing 2 and arranged horizontally in a manner detailed below. in which the longitudinal axis of the shaft 8 is the longitudinal axis of the cylindrical housing 2. It is. Similarly, the housing 2 is fixed to the shaft 8 and rotates in a plane perpendicular to the shaft 8. A ball hitting device 9 is accommodated. The ball hitting device 9 is a handle formed as a rectangular parallelepiped. It is formed as a disc 10 which holds the cylinder 11 at the periphery. shaft 8, drive device 7 and on the opposite side of the disc 10 to eliminate vibrations of these and other components Fix the weight 12.

The throwing device is located at the outlet opening 3a of the separator 3, i.e. at the outlet of the passage 5. It has an extrusion device. In fact, the extrusion device 13 is arranged at right angles thereto. This is a plate 14 having a deflecting slope 15. Deflection Fi, 15 is the outlet opening 3a The plate 14 is configured to open and close and is positioned at one end of the plate 14. The opposite end of was mounted on a pivot 17 held in the housing 2 (in this regard (omitted in the drawings) carries a sleeve 16 (FIG. 2), the pivot of which is connected to the plate 14. The deflection slope 15 is turned around the pivot.

The pushing device 13 is adapted to move so as to feed the next ball 4 to the pitching position. Ru. For this purpose, a spring 18 is attached to the plate 14 (Figs. 1 and 2); One end is on the plate 14, the other end is connected to the housing 2, and the cough spring is pivoted. When the spring force is released, the ball 4 is placed at the pitching position (dotted line in Figure 1). ) is arranged so as to move the plate 14 in a direction that ensures that the plate 14 is moved up to Ru.

Pushing is performed via a timing mechanism 19 (Fig. 1) that moves the pushing device and the ball hitting device in synchronization. The delivery device cooperates with the ball-striking device 9 in a known manner, in which case the mechanism serves the purpose. The structure is of a known structure, and in order not to obscure the essence of the present invention, ( (along with the actuating linkage) will not be described in detail.

In a special embodiment of the invention, the extrusion device is retracted to the position shown in dotted lines. It is actually the mechanical member 19a that causes the extrusion device 13 and the timing mechanism 19 to cooperate with each other. be.

The pitching device according to the invention includes a chamber 20 for fixing the ball 4 in a pitching position, and The chamber is housed in housing 2 and held in place therein as detailed below. . The ball fixing chamber 2o is adjacent to the separator 3 on the side of the outlet opening 3a, and communicate with the data.

Chamber 20 is an extrusion device i! Accommodates 13.

The chamber 20 includes a side wall 21 disposed at right angles to the axis 7 on the side of the rotating surface of the ball hitting device 9; The two end walls 22 and 23, which are the top wall and the bottom wall (as shown in Figure 1), respectively, and Two side walls 24, 25 in a plane parallel to the drawing (wall 25 is not shown and is conventionally shown) defined by

The movable side wall of the chamber 20 opposite the side wall 21 is actually the extrusion device 13 . the aforementioned wall are all flat and securely fix the ball before it is hit by the hand 711. Hammer 11 The ball 4 that is hit does not travel reliably in the preset direction.

A recess 26 is provided in the end wall 23 for the hammer 11 to pass through.

The side wall 24 is also provided with another recess (not shown) for passing the hammer 11, and the side wall 25 An opening 27 is formed in the opening 27 for releasing the ball 4 and taking out the hammer 11. wall 23 The recess 26 is large enough to allow the hammer 11 to pass through, as shown by the dotted line in FIG. The ball is sized so as to hold the ball 4 in the position before the ball is hit.

According to another embodiment of the invention, the ball fixation chamber can be formed by a strip or a rond.

The chamber 20 is located in the housing 2 on the side opposite to the side connecting the housing and the base 1. , i.e. held at the top of it (as shown in FIG. 1) and on the end wall of the housing 2 ( (right side in Figure 1).

The top wall 22 of the chamber 20 is formed integrally with a portion of the top wall of the housing 2 (as shown in FIG. 1). It will be done.

The shaft 8 is mounted on the housing 2 via a bearing 28. Figure 1 shows the storage in housing 2. Only the R and H bearings are shown as being held, and the L and H bearings are held outside the housing 2. and is housed in the housing of the drive device 7. With separator 3 centered around axis 8 Together with it, the ball fixing chamber 20 is also rotated about an axis 30 that is perpendicular to the axis 8. A mechanism 29 is provided for this purpose. The mechanism 29 for rotating the ball fixing chamber 20 is It has a member shaped as a fork 31 with an axis of symmetry aligned with 30. centre The arm 32 of the fork 31 is arranged at right angles to the axis 8 and is supported by a bearing 33 of known construction. and is pivotally mounted on the shaft. The arm 32 of the fork 31 is actually a The connecting element of the ring 2 and one arm of the fork 31 are connected to the housing 2. It is connected to the ball fixing chamber 2o via mutually connected variable length members 34 (Fig. 3). Ru.

With this purpose in mind, the protrusion 35 is attached to the arm 32 as shown in FIGS. 1 and 3. A protrusion 36 is formed on the inner wall of the housing 2 and the flexible casing 38 Segment 34 of cable 37 (FIG. 3) within interconnects the projections 35 and 36. It acts as a mechanical member whose connecting length is variable. Characteristics of segment 34 of cable 37 The characteristic is that the length is variable. Adjust the length of segment 34 of cable 37 Therefore, in order to turn the chamber 20, a ring of known structure suitable for the purpose is used. using a locking device (not shown).

The heel 39 (Fig. 1) of the fork 31 has a journal firmly fixed thereto. Rotatable relative to the base 1 via a bearing device 4o of known construction positioned at 41 It is connected to the base 1 in this manner.

For this purpose, a protrusion 42 is provided on the base 1 and close to the heel 39 of the fork 31. A protrusion 43 is provided on the fork 31 that is slightly spaced apart from the rotation axis 30; The protrusion 43 connects with a mechanical member 44 of variable length. In fact, the member 44 has the same number 4. 4 and is within a flexible casing 45. Member 44 with variable length has a linkage device (not shown) of known construction.

The pitching device according to the invention is designed to impart a twist or rotation to the next ball 4 before releasing it. It has an element 46 (FIG. 4). In fact, the pivot element 46 pivots 7) 49 There is a frame 47 with legs 4 set on top. Both pivots 49 The strip plate 50 attached to the wall of the housing 2 at the section (as shown in FIGS. 1 and 4) It is held in the housing 2 via the housing 2.

The frame 47 is mounted on parallel spindles 51 on opposite frame sides. , accommodates a roller 52 arranged perpendicular to the plane of the strip 50. The top roller 52 4, the ball 4 is rotated clockwise, and the bottom roller 5 (as shown in FIG. 4) is rotated clockwise. 2 causes the ball 4 to rotate in the opposite direction, i.e., interacts with the ball 4 and rotates counterclockwise. The sea urchin is turning. Legs 48 of element 46 are connected to the program via flexible links 54. It has a protrusion 53 adapted to connect with a ram control device 55 (FIG. 1).

The pitching device has a program control unit 55 of known construction suitable for the purpose. Book In the embodiment, a cam type programming device is used. Program control device 55 receives drive from shaft 8. For this purpose, the program control device 55 It is connected to the shaft 8 via gears 57, 58 surrounded by a bar 59. programmer The system controller 55 connects the flexible links 60.61°62.54, which are actually cables. have Flexible link 60 is programmed into cable 44 to rotate fork 31. system control device 55 is connected.

The flexible link 61 rotates the ball fixing chamber 20 about the axis 8 together with the housing 2 It is connected to the cable 34 of the fork 31 in this way.

The flexible link 62 is connected to the rotation speed adjuster 9a of the ball hitting device 9.

A flexible link 54 (FIGS. 1 and 4) is connected to the ball pivot element 46 by a projection 53. conclude. By changing the position of the frame 47 by the flexible link 54, the top Alternatively, one of the bottom rollers 52 can be brought into contact with the ball being thrown, and the necessary direction of rotation can be controlled by the ball. 4.

In another embodiment of the pitching device, the pushing device 13 and the ball fixing chamber 20 are arranged as shown in FIGS. It can be arranged in the housing 2 in other ways than shown in FIG. i.e. extrusion The plate 14 of the device 13 can be attached to the top or bottom of the housing 2. , and the passageway 5 and separator 3 can be positioned at the bottom of the housing 2 or off it. It is Noh. Thus, for example, if the device is to be used for soccer, the A chamber 20 is provided.

The pitching device according to the invention operates as follows. Is the ball 4 bouncing along the flexible tube 6? is fed into the passage 5 of the separator 3, - the lower sphere 4 enters the passage at a given first instant. placed on the baffle plate 15 of the extrusion device 13, which takes a position below the outlet opening 3a of the It will be done. 'The drive 7 is then energized and, via the shaft 8, the signal set by the regulator 9a is The rotation is transmitted to the ball hitting device 9 and the hammer 11 at the rotation speed.

At the same time, rotation is transmitted from the shaft 8'' to the gears 57 and 58, and the program control unit 55 and the hammer 11 via the gears 57, 58 and the program controller 55. The timing mechanism 19 connected to the ball device 9 is activated.

The timing mechanism 19, which operates via a mechanical member 19a, connects the extrusion device 13 to the dotted line in FIG. The spring 18 is then compressed. The ball 4 is connected to the wall 23 freely passing downwardly through the passageway 5 and the outlet opening 3a until contact is made, and below the opening 3a. take the position.

When the hammer 11 passes through the recess 26 in the wall 23, the timing mechanism 19 is activated and the mechanical part is activated. The material 19a is opened. At this time, the extrusion device 13 begins to move due to the action of the spring 1. , move the ball 4 to the leftmost position until it touches the wall 21 as shown by the dotted line in FIG. let Thus, the extrusion device i! 13 and a wall 21 in a suitable position for pitching, 22゜23, 24. , 25 fix the ball 4. In this case, the ball hitting device 9 moves towards ball 4 along a circular path.

When the hammer 11 and the extrusion device 13 move synchronously by the timing mechanism 19, the ball 4 Hammer 11 hits ball 4 before it is completely fixed at the pitching position. the hammer struck After that, the ball 4 is thrown from the opening 27 at a preset speed corresponding to the speed of the hammer as described above. be thrown out. The ball 4 that flew along the preset path is vertically connected to the chamber 20 in which the ball 4 is fixed. and the angle of rotation about the horizontal axis to reach a certain area of the tennis court. Ru. The rotation angle is determined by a process that changes the length of the variable-length link 62°34.44. The gram control device 55 allows preliminary settings to be made each time the next ball is thrown. By changing the rotational speed of the ball hitting device 9 and the hammer 11, the speed and pitch of the ball 4 can be adjusted. The place where the ball lands on the varnish coat changes.

Fix the ball 4 about the vertical axis 30 and the axis 8 and determine the elongation of the ball 4. The rotation of the chamber 20 is effected by a member 34,44 of variable length according to a preset program. by changing the length of the motor 7 and the hammer cooperating with it in a preset manner. The rotating speed of the ball 4 is changed and the rotation degree of the ball 4 is adjusted using the mechanical links 62 and 54. The program control unit 55 automatically executes the program during operation of the pitching device.

Thus, for example, when cable 37 is tensioned by program controller 55, The length of member 34, which is actually cable segment 34, is reduced. Therefore, The protrusion 36 of the housing 2 approaches the protrusion 35 of the arm 32 of the fork 31 . Thus, the housing 2 and the ball fixing chamber 2o cooperating therewith are arranged as shown by the arrow in FIG. It will rotate around the horizontal axis. Similarly, the protrusion 42 of the base 1 and the fork 3 By operating the variable length member 44 that changes the distance between the protrusion 43 of the fork 31 and the housing 2, the ball fixing chamber 20 cooperating with the fork 31 is centered on the vertical axis 30. Rotate in your mind. Pitching arrangement of ball 4, pitching interval and time of each floor 4 Any changes are made by the timing mechanism 19 and the program controller 5 according to a preset program. Adjusted by 5.

Thus, the pitching device is capable of handling complex game situations and other complications that may arise during player practice. It is a de facto robot that can be trained in various combinations of games. Ball 4 Whether the ball is given a clockwise or counterclockwise turn, the ball turning element Each of the top or bottom rollers 52 of the members 46 is Later, the moment the ball moves, it comes into contact with the ball. The degree of rotation of the ball 4 and its direction are The angle of rotation of the legs 4 with frame 47 and rollers 52 varies. This rotation The corner is programmed by a mechanical link 54 formed as a cable. is adjusted by the program control device 55 accordingly.

A test model of the proposed pitching device was manufactured and used by tennis players and hockey players. Lukipa tested it during training. Further experimental soccer ball pitching device I tried to develop it as.

Thus, such pitching devices may be used with professional Balls can be ejected in various directions, at various speeds, and at various degrees of rotation depending on the grams. fly ball Parameters, initial velocity of the ball, flight direction, pitch interval, turning degree and direction follow the model. a ball that simulates a real pitch or is similar to the real one with respect to its parameters. In order to significantly improve the athletic skills of tennis players. extremely important.

In addition to the normal modified pitching device, a lightweight type can also be manufactured. like this The modified device can be transported (shell-shipped) in the trunk of a car or the bed of a motorcycle. Provides a narrow space for placing drive motors and equipment. You can practice anywhere.

[Industrial application field]

The device proposed here is for training tennis, soccer and hockey players. It is ideal for

Similarly, pitching devices manufactured in accordance with the present invention can be used for other types of ball games (e.g. Eva Basketball). It can also be used for training in soccer ball, volleyball, baseball, )\endball). ing.

international search report

Claims (5)

[Claims] (1) A separator connected to the base (1) and configured to feed the balls (4) one by one; Angular movement in a plane perpendicular to the axis (8) of the drive device (7) placed on the base (1) A ball hitting device (9) attached to the shaft (8) of the drive device (7) and a separator (3 ) to move the ball (4) to the hitting position. an extrusion device (13), which extrusion device (13) connects it and the ball hitting device. A pitching device that cooperates with the ball-striking device (9) via a timing mechanism (19) that synchronizes the motion. and includes a chamber (20) for fixing the ball (4) at the ball-hitting position, and the chamber is separated. cooperating with and communicating with the separator and accommodating an extrusion device (13); The chamber is formed of a side wall and two end walls (21, 22, 23, 24, 25), one The side wall (21) of the ball-striking device moves angularly beyond the axis (8) of the drive device (7). Located on the flat side, the opposite side wall is basically an extrusion device (13) that is fixing the sphere. The wall of the chamber (20) has a hole (26) for entering and exiting the ball hitting device (9) and a hole (26) for throwing the ball (4). The pitching device is characterized in that it has an opening (27) for ejection. (2) Fix the ball (4) together with the separator (3) around the shaft (8) of the drive device (7). rotating the chamber (20) for the Rotate the chamber together with the shaft (8) of the drive device (7) and the separator (3) about the line. A mechanism (29) is provided for driving the shaft (8) of the drive device (7), one of the members of the mechanism ) and fixing the base (1) and the sphere (4) via the connecting element (2) Claims characterized in that it is pivotally mounted in a chamber (20) for The pitching device described in item 1 below. (3) characterized in that the drive device (7) is located above the coupling element (2) A pitching device according to claim 2. (4) The member (31) of the chamber rotation mechanism (29) set on the shaft (8) of the drive device (7) ) is basically a fork (31), and the arm (32) of the fork is the driving force. via a mechanical member (34) of variable length loosely set on the shaft (8) of the device (7). The heel (31) of the fork (31) is 39) is pivotally attached to the base (1) via another variable length mechanical member (44). 3. The pitching device according to claim 2, wherein the pitching device is provided with a pitcher. (5) The flexible members (34, 44) mechanically cooperate with the shaft (8) of the drive device (7). ) to the fork (31) of the chamber rotation mechanism (29). A pitching device according to claim 4, characterized in that a device (55) is provided.