JPH02504590A - Portable pitching device and pitching method capable of self-loading, remote control, and pitch changes - 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] A self-loading, remote control and pitch changeable pitching device and Pitching method The present invention is a self-loading, remote control, pitch changeable, and portable modification. This invention relates to an improved pitching device.

Both the manual pitching mechanism and the automatic pitching mechanism are 0 manual pitching, which has been known since before Oita. As a device, for example, a ball is held in a wire loop and an impact force is applied to it. Ball by knocking the ball out of the wire loop There is a device configured to "throw" a pitcher, and such a pitching device is disclosed in U.S. Patent No. No. 080.958. The pitching device disclosed in this U.S. patent is , uses a wire loop provided in the handle, and the wire loop is connected to the box. The ball will be pulled towards the top of the box and hit the box to release the ball. The sea urchin is turning. The operator of this US patented pitching device stays behind the box. Loading the ball into the wire loop and releasing the arm must be carried out.

Another manual pitching machine is disclosed in U.S. Pat. No. 4,271,813. child The pitching machine has a tripod configuration so that the entire pitching machine is similar to that of a human pitcher. The torsion spring arm is designed to be pulled backwards by the batter. The zero-order system allows you to pink up a large softball. When the batter stands at home plate, the pull cord is allowed to slide off the bat. As a result, the arm is released and the softball can be "thrown".

Yet another manual pitching device is disclosed in U.S. Pat. No. 4,082,076. child A U.S. patent states that a single ball tethered to the ground can be thrown over and over again. A spring-actuated pitching device is disclosed. With this pitching device, Limited and complex ability to adjust pitch height in the pitcher box And it is impossible to achieve. Also, adjusting pitching speed is similarly difficult and impossible to achieve. It is. Additionally, this pitching device is complex to assemble and properly position; The range of motion of the arm is also limited.

An automatic pitching machine is disclosed in U.S. Pat. No. 4.552.120. However, such pitching machines require the presence of electricity and are generally mechanically complex and expensive. be.

Disadvantages of electrically driven pitching devices, and in particular of known manual pitching devices, are If the batter wants to change the height of his pitch, he must leave the batter's box and , complex and involved changes must be made, and therefore the pitch cannot be successfully changed. It is necessary to conduct a considerable amount of testing before it can be used. For this reason, the batter's box There is no ability to change the height of the pitch for each pitch while in the pitch In this case, the speed of the pitched ball, i.e., the pitch, and the height, i.e., the fly ball. cell The floating mechanism has no reliability and the ball is consistently thrown in the same position over and over again. It is impossible to do so.

Therefore, it can be adjusted, operated and self-loaded from a remote location, making it possible to adjust, operate and self-load the panther box. You can change the height of the pitch from one pitch to the next within the ball, and change the speed of the pitch. You can change whether it's a fly ball or a ground ball, and you can still There is a need for a pitching device that is easy to use, foldable, and portable.

Therefore, it is an object of the present invention to provide a self-loading, remote control and pitch changeable, portable The object of the present invention is to provide an improved pitching device.

Therefore, the pitching device of the present invention has a frame to which the arm is rotatably attached. The free end of the arm has a sultameno "hand" means for holding the ball. is attached. The arm and frame are equipped with surgical tubes. one or more resilient biasing means such as l tubing) are connected to the arm; is designed to be pulled toward the front of the frame. arm, surgical tube On the side opposite to the side where the cable is connected, there is an arm positioning cable such as a nylon cord. One end of the means is connected. This nylon cord (arm positioning means) , the cord is guided forward around a pulley attached to the rear of the frame. terminating in a hook or anchor means attached to the opposite end of the.

A rectangular peg board is used to store and maintain the anchors attached to the cord. It is designed so that holding can be carried out at the free end of the peg board. anchor the arm is attached to the peg board and the arm is pulled backwards. In this position, pull the peg board until it occupies a vertical position. Drive stakes into the ground through the holes in the rear end of the peg board. Secure the peg board. There is a cock hole between both ends of the arm positioning cord. the handle is installed. This cock handle is drilled into the peg board. It is equipped with a peg (nail) that fits into the hole. The holes drilled in the peg board Counting from the free end of the peg board to which the linker is attached, starting with "1" They are numbered in increasing sequence.

A removable self-loading trough is attached to the frame. The self-loading trough allows the arm to be lifted by pulling the cock handle. When the hand (hand means) is pulled completely backwards past the horizontal position ) is designed to allow the ball to enter the ball. Grasp the cock handle and pull the cock handle away from the frame the arm will be pulled back and the ball will be loaded into the hand. 0 Next, the operator (batter) inserts the coin into the designated hole on the peg board. The batter's natural batting stance is the 0th position where the peg of the handle is inserted. Hold the cock handle and lift the cock handle slightly with your foot. the peg board is pulled out of the hole in the peg board. This allows the surgical tube to The arm is pulled forward and the arm releases the ball towards the batter. Continue increasing the speed until. The batter is pitching a pitch that is too high in the batter's box. When you want to lower the height of the ball, select a hole smaller than the number you originally selected. Adjustment can be easily made by simply replacing the cock handle with the numbered hole.

On the other hand, if a batter wants to pitch a ball higher, he should use the cock handle first. All you have to do is replace the hole with a larger number than the one you selected. If you insert the dollar back into the hole you originally selected, the ball will be pitched at the same height over and over again. You can do it in return.

Other objects, features and advantages of the invention are set forth below in the detailed description of the preferred embodiments. will become clearer from the claims and the accompanying drawings.

FIG. 1 is a perspective view showing a preferred embodiment of the pitching device of the present invention.

FIG. 2 shows a partially disassembled frame portion of the pitching device of the present invention. FIG.

FIG. 3 shows the anchor, peg board and cock handle of the pitching device of the present invention. FIG.

FIG. 4 shows that the pitching device of the present invention equipped with a self-loading trough is unloaded. This shows the cock in the cock position.

Figure 5 shows the invention in which balls are loaded into a self-loading trough. The pitching device is shown in the cocked position.

FIG. 6 is a perspective view of the hand of the pitching device of the present invention.

FIG. 6A is a side view showing the ball in proper position within the hand.

Figure 6B shows the ball being out of its correct position in the hand. FIG.

Figure 7 shows the coupling means used to attach the resilient biasing means to the frame. It is an exploded view.

FIG. 8 is a perspective view showing a part of the operating mechanism of the self-loading trough.

Figure 9 shows the batter pulling on the cock handle to move the arm from its resting position. FIG.

FIG. 10 is a side view showing the pitching device of the present invention in the cocked position.

FIG. 11 shows an anchor when pitching a fly pole using the pitching device of the present invention. FIG.

A preferred embodiment of the invention is shown in FIGS. 1-11.

In particular, as shown in FIGS. 1, 2, and 3, the pitching device 10 of the present invention has a frame. arm 12, a rotatably attached arm 14, a hand 16, and a power member ( power length) 1B. Figure 1 also shows A system locating cord 20, a cock handle 22, and a peg board 24 are shown. In addition to this, there is a batter 26, a ball 28, and a self-loading trough 30. is also shown.

FIG. 2 shows a pulley 32 attached to the frame 12 and an arm 14 that rotates freely. A fitting 34 is shown for attaching to the main body. Figure 2 also shows the frame Each part of the frame 12, namely the main stem sex 36, is attached to the frame 12. The Y-shaped connecting part 38 is attached to the upper arm of the iY-shaped connecting part 38. Section 40, dead man section attached to lower arm of Y-shaped connection 38; 42 is shown.

FIG. 3 shows the front flat portion 44 of the cock handle 22 and the front flat portion 44 formed on the front flat portion 44. The mounting includes a hole 46, a downward pointed peg 48, and an upwardly slanted handle 50. It is shown. The user grasps the cock handle 22 by passing a finger through the hole 52. Can be done. Cock handle 22 may include a handle connection of any conventional design. 56 (metal ring in this embodiment) to which the handle connection cord 54 is connected. tied together. Further, the cord 54 is connected to the arm position via a positioning cord connecting portion 58. It is connected to the positioning cord 20.

Also shown in FIG. 3 is a removable anchor 60. This anchor 60 , peg 62 (similar to peg 48) designed to fit into multiple adjustment holes 64 ( (indicated by a broken line). The peg board 24 has stake holes 66; By driving an optional steak or hole (not shown) through the cough hole 66. The peg board 24 can be fixed to the ground.

FIG. 4 shows that the pitching device 10 of the present invention is in an unprepared position, that is, an uncoupled position (unc). This indicates that the location is in the "ocked" position.

Also shown in FIG. 4 is an auxiliary power cefsilane 68 equipped with an additional power member 18'. ing. Also shown are power section connections 70, 70'. In this case, the applicable The powered cefsilane connection 70.70' is a hook and ring of conventional and known design. , and further explanation will be omitted. Similarly, arm connecting portions 72, 72' are provided. However, these arm connections 72, 72' are provided with non-closed loops, The power members 18, 18' can be easily attached and detached.

With this configuration, six to eight different speeds can be easily obtained. For example, as the power member 18, a surgical Select the tube rAJ installed at a low position and use it as the power member 1B'. A surgical tube rBJ with an outer diameter of 578mm (approximately IE+am) was attached at a high position. If you choose one, you can change the mounting position from 1 to 8 below. As the ball moves from 8 to 8, the ball speed sequentially changes from slow to fast.

1. High position = not installed, 2. High position - B, low position = B, 　　　　　　　Low position - Not installed, 3. High position - Not installed, 4. high rank Position - 8, Low position - A, Low position = not installed, 5, High position - B. 6. High position-B.

Low position - B, Low position = A.

7. High position - people, 8. High position - 8.

Low position - B, Low position = A.

To obtain this speed range, two types of power members 18, 18' are required. 1 type When using a power member, it is possible to change the speed in 6 steps. The speeds described in items 5 and 8 will no longer be obtained.

The most important improvement of the present invention is the pitching device as shown in FIGS. 4 and 5, for example. 10 is being lifted off the ground by Deadman Cefshiran 42. be. By lifting in this way, traditional pitching devices can The range of motion of the arm 14, which could not be lowered below the horizontal plane, has been greatly expanded. It becomes possible to do big things. As a result, the power and axis run of arm 14 are further increased. It will be strengthened.

Further, FIGS. 4 and 5 show another important feature of the pitching bag flG of the present invention. ing. In other words, the power member 1B (and 18') has one end lifted from the ground. Because it is fixed to the connecting part 70 (and 70'') in a raised and high position, the power part Material 18 (and 18') is placed in a target area somewhat above the batter's box. Directly directed.

The drawing also shows an arm positioning cord 20 attached to the rear of the arm 14. The mounting fixture 74, deadman stake 76, and rear end 78 are shown.

FIG. 5 shows the pitching device 10 of the present invention in the cocked position (ready position W) and the cup ( The ball 28 in the hand 16 is shown ready to be thrown. No. Figure 5 shows the auxiliary power section 68 not installed. However, this auxiliary power section 68 is used in addition to the main power section 40. It is clear that it can be used for warping in Figure 4 and Figure 5 shows the arm position. The positioning cord 20 passes over the legs of the dead man section 42 and connects it to the frame 12. The arm positioning cord is installed by passing around the pulley 32. It is shown connected to arm 14 at fitting 74.

6, 7 and 8, some specific parts of the pitching device IO of the present invention are shown enlarged. It is greatly shown. The hand 16 is shown in FIG. Hand 16 is an example For example, as shown in FIG. 4, the top portion 80 (FIG. 6) is flat and the rear portion 80 is flat. 2 at an angle of approximately 90". In the center of the top 80 is a groove 84. A portion of the ball 28 is placed in the groove 14. Bo The roll 28 is partially resting on the rear part 82 and the top part 80, as shown in FIG. 6A. It is gaining support. If the ball 28 is held as shown in FIG. 6A, Even if there is a problem, the groove 84 and flat top 80 are provided so that In such a case, it is supported within the hand 16 as shown in FIG. 6B. Therefore, the board Le 28 is pitched at the same angle as the previous pitch, as shown by the arrows in Figures 6A and 6B. It is released and reaches the same position in the batter's box. The hand 16 is a known rotatably coupled to arm 14 by any means (not shown) of Can be done.

For proper function, the hand 16 should be at an angle of about 135# with respect to the arm 14. It should be placed without. The hand 16 is rotatably attached to the arm 14. When playing a ball, the ball speed can be increased by allowing the hand 16 to rotate forward several positions. On the other hand, if you allow the ball to rotate several positions backward, you can slow down the ball speed. can.

This makes it possible to accurately throw the ball 28 to the target.

FIG. 7 shows the power member 18 and the tapered connector 86. This te The bar-shaped connector 86 has a flat portion 88 integral therewith, and the flat portion 88 A connecting hole 90 is bored in the. A groove 92 is formed in the main body of the connector 86 for installation. has been done. Accordingly, the connector 86 is inserted into the power member 18 and For tightening, place the pinch 94 on the groove 92 and tighten, and the power member 18 will be installed. The connector 86 is firmly held in the groove 92, and the tapered connector 86 is fixed to the power member 18. be done. By forming the connector 86 in a tapered shape, the surgical tube (power that occurs in the surgical tube 1B when the member) 18 is pulled over the connector 86. friction and tearing can be reduced.

FIG. 8 shows a self-loading device to keep the ball 28 in place. The lower rear portion of the trough 30 is shown 1, for example as shown in FIG. 0 is a rotatable attachment that is detachably attached to the frame 12 in the area of the tool 34. It is designed to be attached. This causes the front end of the trough 30 to be above the ground. The ball 28 is lifted by gravity to the rear as shown in Figure 8. For example, as shown in Figures 4 and 5, The rear of the trough 30 extends beyond the rear end of the frame 12 and the rear of the trough 30 extends beyond the rear end of the frame 12. A loading lever 96 is provided at the rear. The loading lever 96 The ball 28 is constantly pressed upward by the spring 98 so that the ball 28 is at the rear of the trough 30. It is designed to prevent it from coming out. Trough 30, arm 14 and ha The hand 16 is loaded when the arm 14 is pulled backward. Push the lever 96 so that the ball 28 can roll into the hand 16. It is designed to. The cock handle 22 is connected to the selected adjustment hole in the veg board 24. 64 and when the arm 14 can move forward, the loader Another ball 28 is lifted into the trough 30 by a lever 96 or a spring 98. held within.

During operation, the pitching device 10 of the present invention can be easily installed (center amplifier). can. First, by driving the stakes into the ground through the stake holes 66, the peg board 24 in a preferred area of the batter's box selected by batter 26. Next, attach the removable anchor 60 to the peg at the free end of the peg board 24. - Next, the batter 26 walks to the pitching equipment 210, which is attached to the board 24. grip the frame 12, and pull the arm 14 until it stands upright, almost perpendicular to the ground. Hold frame 12 and walk away from the batter's box until you are in position. The pitching device W10 of the present invention is configured such that when the arm 14 is in the upright position, The design is such that member 18 is stretched approximately 100% of its original length. So As a result, for example, when the pitching device 10 is in the uncocked position as shown in FIG. Power member 18 is pulled and exerts a pulling force on arm 14.

Once the frame 12 is positioned correctly, place the pitching equipment W1o on the ground. , a ninth-order bar that drives the rear end resistor 78 into the ground and fixes the pitching device W1o in the proper position. The batter 26 moved to the front of the frame 12 and drove the detsutman pile 76. Afterwards, return to the batter's box.

The batter 26 then presses the cook handle 22 as shown in FIGS. 9 and 10. and attach the arm positioning cord 20 to the batter via the handle connection cord 54. Pull towards the box.

The arm positioning cord 20 is attached to the arm 14 with a fitting 74. In order to If the member 18' is attached, the power member 18' is also pulled further. It will be done. When the hand 16 pushes down the loading lever 96, the batter 26 releases the ball. Pull the cock handle 22 until the handle 28 is received in the hand 16. Continue 0 Next, the batter 26 gently moves the arm 14 forward and hits the peg ball. Insert the peg 48 into any one of the adjustment holes 64 provided in the door 24. As a result, the pitching device 10 can occupy a straight cock position as shown in FIG. It becomes.

At this point, batter 26 assumes the correct batting stance.

The cock handle 22 is tilted upward as shown in FIGS. 10 and 11, for example. Because the batter 26 has a handle 50 (FIG. 3) that is The peg 48 can be removed from the adjustment hole 64 by simply lifting the dollar 22 with your foot. this Instantly, the power member 18 uses its stored power to strike the arm 14 into a batter. Start pulling towards 26 all at once. Arm 14 selects before batter 26 When the uncocked position is reached, the arm positioning code 20 4 is stopped, which causes the ball 28 to move forward toward the batter 26. thrown in the direction

Arm 14 may be made of any resilient, strong, lightweight material (with some degree of visibility). (preferably) and therefore prevent sudden impacts like traditional pitching devices. A natural fluid pitching motion that does not stop and resembles the human arm as much as possible. It should be pointed out that almost the same pitching motion can be obtained.

As mentioned before, according to the present invention, power members I8 having various elasticities are used. By simple means, pitches can be made at a wide variety of velocities, e.g. The elastic surgical tube allows the ball to be thrown slowly and softly. enable. In contrast, less elastic surgical tubing allows for increased velocity. It is obvious that it can be done. Also, by adding an auxiliary power section 68, a weak power section 68 can be added. Various speeds can be obtained by appropriately combining force members and strong power members. can. The present inventor has used this pitching device to pitch approximately 100m, p, h, (approximately 160m). +s/h) (7) I'm thinking of increasing the speed of the ball.

If the batter wishes to throw a fly ball as shown in Figure 11, Move the anchor 6o forward to the car along the peg board 24 and uncock it. You can position it further back.

As a result, when releasing the cock handle 22, the arm 14 comes to rest more quickly. This causes the ball 28 to be thrown more upwardly. Reverse this operation If you do this, you can even throw a “grounder.” By this simple means, a single pitching rig can be Depending on the location, all types of pitches, including fly balls, batting balls, and ground balls, can be pitched. I can.

According to the pitching equipment W10 of the present invention, the punter can control the area where the ball is thrown. I would like to emphasize that you can control it to an extent unknown, i.e. , by simply inserting the cock handle 22 into the large numbered adjustment hole 64. You can throw the ball high in the like zone, and use the cock handle 22 as a small Throw a low ball within the strike zone by simply adjusting the number adjustment hole 64. can be done. The advantage of this is that one batter can learn to hit a wide variety of pitches. In addition to allowing batters of different heights to without complicated moving or reassembling of the pitching device, as was required. , is obvious in that it can be practiced one after another.

Another very important advantage of the pitching device of the present invention is that, as shown in FIG. The device can be partially or completely disassembled. The pitching device of the present invention is bulky and It is lightweight and easy to transport, assemble, install, and use.

Further, the pitching device of the present invention may be used by a single operator, or may be grip the cock handle 22 (that is, place the cock handle 22 into the adjustment hole 64). ), coaches and batters! 1! Cock when you're ready By releasing the handle 22, the pitching distribution can be controlled. stomach.

Another advantage of the pitching device f10 of the present invention compared to conventional inventions lies in the hand 16. subordinate Prior art pitching devices require that the ball be consistently released from the pitcher at the same angle. I couldn't. The flat top 80 of the hand 16 and the 90° swept back angle portion (rear 82 and the central groove 84, the ball 28 is held in one position for pitching. It is positioned all the way through. As shown in FIG. 6B, the ball 28 is located at a key point on the hand 16. Even if the hand 16 is not placed in the is able to hit the ball 28 at the same angle over and over again. . In contrast, with conventional pitching devices, the angle at which the ball is released differs each time it is pitched. Put it away.

Above, the pitching device of the present invention has been explained in relation to the case where manual operation is performed, but the present invention A small electric winch (not shown) can be attached to the pitching device 10, This allows the battery to be operated in exactly the same way as when operating the manual cock handle 22. The arm 14 can be actuated when the motor 26 desires. Furthermore, the present invention For example, changing the pitching position depending on the individual batter, Adapting to the punter, changing pitching speed, and 0-shot that allows you to easily perform operations such as throwing trike balls and ground balls. Ming's pitching device has a simple structure, reliability, and easy assembly. The batter can be operated from a distance. Therefore, the pitching equipment of the present invention The system has several important advantages over conventional pitching devices.

Although the present invention has been described above with respect to its preferred embodiments, It should be understood that there may be other embodiments that fall within the spirit and scope of the invention. .

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Claims (20)

[Claims] 1. A. frame and B. an arm rotatably attached to the frame; C. one end of the arm a hand means for holding the ball, attached to the D. elastic biasing means coupled to the arm and the frame; E. one end of arm positioning means connected to the arm; F. The arm position a removably attachable anchor attached to the other end of the determining means; G. Batter's box having a free end and an end anchored to the ground means for adjusting the height of the pitch, H. The removably attachable anchor is attached to the free end of the height adjustment means. It can be detachably attached to the I. One end of the arm positioning means is attached between both ends of the arm positioning means. and can be detachably attached to the height adjusting means. further comprising a cock handle, when the cock handle is released, the cock handle is opened. The ball is pulled forward by the elastic biasing means to push the ball toward the batter. A pitching device configured to pitch toward a box. 2. The frame is A. The main stem part, B. C. a lower rear end of the main stem portion that is fixed to the ground; the lower rear end an arm positioning boolean disposed in front of the arm positioning means; A rotating arm positioning pulley, D. disposed at a midpoint of the main stem, the arm being positioned relative to the frame; means for rotatably mounting; E. Y fixed to the upper front end of the main stem glyph connecting means; F. a power section attached to the upper part of the Y-shaped coupling means, a power section to which one end of the resilient biasing means is attached; G. a dead man section attached to the lower part of the Y-shaped connecting means; and can be fixed to the ground, and when the arm is released, the arm absorbs the impact and prevents the frame from moving perpendicularly to the arm; Claim 1 characterized in that the dead man section is provided with a dead man section that can be stopped. The pitching device described in Section. 3. The hand means is A. a ball receiving means formed by three angled sides; B. a central groove provided on a central side surface of the ball receiving means; Some portion of the ball protrudes into the groove, and the groove holds the ball in place. and guide the ball to be released from the ball receiving means in a straight line, ．． The sides of the center other than the groove are flat, and the ball is placed in the groove. so that the ball is always thrown at the same angle toward the batter's box. The pitching device according to claim 2, characterized in that the pitching device is configured as follows. 4. The elastic biasing means further comprises: A. A plurality of compatible elastic biasing means with various elasticities are provided, and these Fast and slow pitches can be achieved by appropriately selecting compatible elastic biasing means. B. The elastic biasing means has at least one length of its natural state. 00% and the arm is pulled backward by the arm positioning means. When released after the ball has been pitched, the resilient biasing means During this period, the arm is pulled and retracted so that the tension remains even when the arm is at rest. Claim 3, characterized in that the state in which is given is always maintained. The pitching device described in Section. 5. The height adjusting means further includes: A. a rectangular essentially flat veg board; B. installed at one end of the Veg board. It is equipped with a cut hole through which the beg board is fixed to the ground. has become, C. provided at the opposite free end of said veg board, said anchor being removable; A hole that can be attached freely, D. a plurality of height adjustment holes arranged between the one end and the free end of the veg board; further comprising: the height adjustment holes are numbered sequentially starting from the free end; and positioned the cock handle in the lower numbered adjustment hole. Sometimes, the ball speed can be slowed down compared to the previous pitch, and the cock handle can be adjusted to a larger pitch. When the ball is positioned in the numbered adjustment hole, the speed of the ball will be increased compared to the previous pitch. The pitching equipment according to claim 4, characterized in that the pitching equipment can be used quickly. Place. 6. The cock handle further includes: A. a front flat portion having a hole for passing one end of the connecting means; and the other end of the connecting means is connected to both ends of the arm positioning means. It is installed between B. A downwardly pointed beg is provided on the flat part, and the beg is It is designed to fit into multiple holes in the log board. C. further comprising an upwardly slanted handle attached to the flat portion; When the veg is inserted into the hole in the veg board, the cock handle is inserted into the veg board. The batter is placed on the flat surface of the playing board and the batter in the batter's box has his feet Claims characterized in that the cock handle can be released at The pitching device according to item 5. 7. said hand means being pulled rearwardly to a cocked position by said cocking handle; the self-loading means for automatically loading the pitching device when the pitcher is The pitching device according to claim 1, characterized in that the pitching device has: 8. The self-loading means A. It is equipped with a trough for holding multiple balls, and the front end of the trough is detachably attached to the main stem at an intermediate portion of the main stem. B. Before The rear end of the trough extends beyond the lower rear end of the main stem and is connected to the ground. It is designed to be placed on a surface, C. It further includes a loading lever, the loading lever is capable of lifting spring biased in position, and when in the raised position the ball is Claims characterized in that the device can be prevented from coming out of the trough. The pitching device according to paragraph 7. 9. A. a frame having a main stem portion; B. Fixed to the ground of the main stem part C. an arm rotatably attached to the frame; and, D. hand means for holding a ball attached to one end of the arm; E. elastic biasing means coupled to the arm and the frame; F. one end of arm positioning means connected to said arm; G. The arm position a removable anchor attached to the other end of the determining means; H. A means for adjusting the height of a thrown ball in the batter's box, , height adjustment means having a free end and one end anchored to the ground. Ri, I. The removable anchor is attached to the free end of the height adjustment means. It is designed to be removably attached, and J. Both ends of the arm positioning means one end is attached to said arm positioning means between said height adjusting means; It also has a cock handle that can be detachably attached to the step. , when the cock handle is released, the arm is biased by the elastic biasing means. being pulled forward to throw the ball toward the batter's box. K. An arm positioning pulley located in front of the lower rear end. an arm positioning pulley around which the arm positioning means revolves; L. disposed at a midpoint of the main stem, the arm being positioned relative to the frame; means for rotatably attaching; M. Y fixed to the upper front end of the main stem glyph connecting means; N. a power section attached to the upper part of the Y-shaped coupling means, a power section to which one end of the resilient biasing means is attached; O. a dead man section attached to the lower part of the Y-shaped connecting means; and can be fixed to the ground, and when the arm is released, the arm absorbs the impact and prevents the frame from moving perpendicularly to the arm; It further has a dead man section that can stop the P. The hand means is Equipped with ball receiving means formed by three sides with degrees, Q. A central groove is provided in the central side surface of the ball receiving means, and a central groove is provided within the groove. Some portion of the ball protrudes so that the groove holds the ball in a consistent straight line. The ball is released from the ball receiving means in a manner similar to the above, R. The side surface of the center other than the groove is flat, and the ball is placed in the groove. It will be fired at the same angle towards the butter box whenever it is in S. It further includes a plurality of compatible elastic biasing means with different elasticities. By appropriately selecting these compatible elastic biasing means, Able to pitch and slow pitch, T. The elastic biasing means is in its natural state. said arm being pulled by at least 100% of its length so that said arm is When released after being pulled rearward by the elastic biasing means, the elastic biasing means Pull and retract the arm while the ball is being pitched so that the arm remains stationary. The tension is always maintained even when the U. said height adjustment means being formed in a rectangular essentially flat veg board; , V. A hole is provided at one end of the veg board, and the veg board is inserted through the hole. is fixed to the ground, and the W. the opposite free end of said veg board is provided with a hole through which the anchor can be detachably attached. and X. A plurality of height adjustment holes are provided between the one end and the free end of the Veg board. and the height adjustment holes are numbered consecutively starting from the free end. , when the cock handle is positioned in the lower numbered adjustment hole. The pitch can be slowed down compared to the previous pitch, and the cock handle can be adjusted to a larger pitch. When positioned in the numbered adjustment hole, the ball speed will be faster than the previous pitch. Y. The cock handle is provided with a flat portion at the front. The flat part is provided with a hole through which one end of the connecting means passes, and the connecting means The other end of the step is attached between the ends of the arm positioning means, Z. A downwardly pointed beg is provided on the flat part, and the beg is It is designed to fit into multiple holes in the log board. A.A. An upwardly inclined handle is attached to the flat part, and the handle is attached to the flat part and when inserted into the hole of the Veg board, the cock handle or the Veg board The batter is placed on the flat surface of the field and the batter in the batter's box hits the ball with his feet. The cock handle can be released and the BB. The hand means When the pitching device is pulled backwards to the cocked position by the cock handle, It is characterized by further comprising a self-loading means for automatically loading the device into the device. pitching device. 10. The self-loading means includes A. for holding multiple balls a trough, the front end of the trough is connected to the main stem at an intermediate portion of the main stem; It is detachably attached to the stem and lifted from the ground at the intermediate portion. B. The rear end of the trough is located in front of the main stem. It extends beyond the lower rear end and can be placed on the ground, C. It further includes a loading lever, the loading lever is capable of lifting spring biased in position, and when in the raised position the ball is and the hand means is adapted to prevent exit from the trough, and the hand means When the ball is in the locked position, it is pushed down by the hand means so that the ball Claim 9, characterized in that the device is configured to be able to exit from the trough. The pitching device described in . 11. A. A step of configuring a frame;B. The arm can be rotated freely relative to the frame C. A hand for holding the ball at the free end of the arm attaching the means; D. connecting elastic biasing means to the arm and the frame; E. connecting one end of arm positioning means to the arm; F. A removably attachable anchor is attached to the other end of the arm positioning means. The process of attaching G. a batter's box having a free end and an end anchored to the ground; providing means for adjusting the height of the pitch; H. The removably attachable anchor is attached to the free end of the height adjusting means. a step of detachably attaching the I. Connect one end of the cock handle to the attached to the arm positioning means between both ends of the arm positioning means, and A cock handle is detachably attached to the height adjusting means, and the cock handle is detachably attached to the height adjusting means. When the arm is released, the arm is pulled forward by the elastic biasing means. to allow the ball to be thrown toward the batter's box. A pitching method characterized by comprising steps. 12. The step of configuring the frame is performed by A. a step of preparing a main stem portion; B. preparing a lower rear end portion of the main stem portion to be fixed to the ground; C. The arm positioning pulley, which the arm positioning means revolves, is placed at the rear of the lower part. D. locating in front of the end; The arm is rotatable relative to the frame. configuring an attachment means and locating the attachment means at an intermediate point of the main stem; With mode, E. fixing a Y-shaped coupling means to the upper front end of the main stem; F. A power section to which one end of the elastic biasing means is attached is connected to the Y-shaped link. G. attaching to the upper part of the connecting means; Can be fixed on the ground, said The frame absorbs the impact of the arm when it is released, and the frame A dead man section that can be prevented from moving perpendicularly to the and attaching to the lower part of the shape connecting means. The pitching method described in Clause 11. 13. The step of attaching the hand means includes A. Shaped with three angled sides a step of configuring the ball receiving means; B. A central groove is provided in a central side surface of the ball receiving means, and the ball is placed in the groove. protrudes so that the groove guides the ball in a consistent straight line. guiding the ball to be released from the receiving means; C. The sides of the center other than the groove are configured to be flat, so that the ball is placed in the groove. so that the ball is always thrown at the same angle toward the batter's box. D. attaching the ball receiving means to the free end of the arm; 13. The pitching method according to claim 12, comprising: 14. A. Prepare a plurality of compatible elastic biasing means with various elasticities, and Fast and slow pitches can be improved by appropriately selecting compatible elastic biasing means. a step of enabling the ball to be played; B. tensioning the elastic biasing means by at least 100% of its natural length; , the arm is released after being pulled rearward by the arm positioning means. when the elastic biasing means pulls the arm while pitching the ball. The tension is always maintained even when the arm is at rest. Claim 13, further comprising the step of: The pitching method described in. 15. The step of preparing the height adjustment means is performed in accordance with A. an essentially flat veg with a rectangular shape ・The process of configuring the board, B. Prepare a hole at one end of the Veg board and lower the Veg board to the ground through the hole. A fixing process; C. The anchor is removably attached to the opposite free end of the veg board. D. Between said one end and the free end of the veg board, and configuring a number of height adjustment holes, the height adjustment holes having the free end. The cock handles are numbered consecutively starting with . When positioned in the attached adjustment hole, the ball speed can be slowed down compared to the previous pitch, When the cock handle is positioned in the higher numbered adjustment hole. is a pitcher that is characterized by being able to pitch faster than the previous pitch. The pitching method described in Clause 14. 16. The step of attaching the cock handle is A. The construction that makes up the flat area in front The flat part is provided with a hole for passing one end of the connecting means. , the other end of the connecting means is attached between the both ends of the arm positioning means. has been B. the step of providing a downwardly pointed beg on the flat portion; is adapted to fit into a plurality of holes provided in the veg board; C. further comprising attaching an upwardly angled handle to the flat portion; When the veg is inserted into the hole in the veg board, the cock handle Veg is placed on the flat surface of the board and the batter in the batter's box Claims characterized in that said cock handle can be released with a foot. The pitching method described in Range 15. 17. said hand means being pulled rearwardly to a cocked position by said cocking handle; self-loading means for automatically loading said pitching device when lowered; Claim 11, further comprising the step of attaching. How to pitch. 18. The step of attaching the self-loading means is performed according to A. Hold multiple balls The front end of the trough for holding is attached to the main stem at an intermediate portion of the main stem. It is removably attached to the a process of making it into a state; B. the rear end of the trough to a point beyond the lower rear end of the main stem; stretching and placing it on the ground at the location; C. The method further comprises a step of preparing a loading lever, and the loading lever The lever is biased to the raised position by a spring and remains in the raised position. prevents the ball from coming out of the trough and is in a depressed state when Sometimes the ball is allowed to exit the trough and the hand means When in the cocked position, it is adapted to be depressed by the hand means. 18. The pitching method according to claim 17, characterized in that: 19. A. B. preparing a frame with a main stem portion; Main stem fixing the lower rear end of the part to the ground; C. rotatably attaching the arm to the frame; D. attaching hand means for holding a ball to one end of the arm; E. connecting elastic biasing means to the arm and the frame; F. connecting one end of arm positioning means to the arm; G. A removably attachable anchor is attached to the other end of the arm positioning means. The process of attaching H. a batter's box having a free end and an end anchored to the ground; providing means for adjusting the height of the pitch; I. The removably attachable anchor is attached to the free end of the height adjusting means. a step of detachably attaching the J. Connect one end of the cock handle to the attached to the arm positioning means between both ends of the arm positioning means, and A cock handle is detachably attached to the height adjusting means, and the cock handle is detachably attached to the height adjusting means. When the arm is released, the arm is pulled forward by the elastic biasing means. to allow the ball to be thrown toward the batter's box. process and K. The arm positioning pulley around which the arm positioning means revolves is disposing the lower rear end portion in front of the L. Rotating the arm relative to the frame comprising rotatably attaching means, said attaching means being disposed at an intermediate point of said main stem; The process of placing M. fixing a Y-shaped coupling means to the upper front end of the main stem; N. A power section to which one end of the elastic biasing means is attached is connected to the Y-shaped link. attaching the O. to the upper part of the connecting means; Can be fixed on the ground, said The frame absorbs the impact of the arm when it is released, and the frame A dead man section that can be prevented from moving perpendicularly to the attaching it to the lower part of the glyph-shaped connecting means; three angled sides preparing a ball receiving means formed of; Q. A central groove is provided in a central side surface of the ball receiving means, and the ball is placed in the groove. protrudes so that the groove guides the ball in a consistent straight line. guiding the ball to be released from the receiving means; R. The sides of the center other than the groove are configured to be flat, so that the ball is placed in the groove. so that it is always launched at the same angle towards the butter box The step of making S. Prepare multiple compatible elastic biasing means with various elasticities. By appropriately selecting these compatible elastic biasing means, fast pitching and fast pitching can be achieved. a step of enabling slow pitching; T. tensioning the elastic biasing means by at least 100% of its natural length; , the arm is released after being pulled rearward by the arm positioning means. when the elastic biasing means pulls the arm while pitching the ball. The tension is always maintained even when the arm is at rest. a step of ensuring that U. Said height adjustment means are grooved in the form of a rectangular essentially flat veg board. The process of V. A hole is prepared at one end of the Veg board, and the Veg board is attached to the ground through the hole. W. At the opposite free end of the veg board, the anchor is attached. preparing a removably attached hole; said one end of the veg board and and a step of preparing a plurality of height adjustment holes between the free end and the height adjustment hole. The holes are numbered consecutively starting from said free end and are sequentially numbered starting from said free end and are connected to said cock handle. , when positioned at the adjustment hole with a smaller number, compared to the previous pitch. You can slow down the ball speed by moving the cock handle to the higher numbered adjustment hole. When you position the ball, you will be able to pitch faster than the previous pitch. , Y. comprising the step of configuring the cock handle with a front flat part, the flat part A hole is provided in the section for passing one end of the connecting means, and the other end of the connecting means is , mounted between the ends of the arm positioning means, Z. downward The method includes a step of providing a sharpened beg on the flat portion, and the beg is ・It is designed to fit into multiple holes provided in the board, A.A. The method includes the step of attaching an upwardly inclined handle to the flat part, and the front When the Veg is inserted into the hole of the Veg board, the cock handle is inserted into the Veg board. The batter is placed on the flat surface of the playing board and the batter in the batter's box has his feet The cock handle can be released at BB. The hand means is connected to the cock. said pitching device when pulled backwards to the cocked position by the handle. further comprising the step of attaching a self-loading means for automatically loading the A pitching method characterized by 20. The step of attaching the self-loading means is performed according to A. Hold multiple balls The front end of the trough for holding is attached to the main stem at an intermediate portion of the main stem. The intermediate portion is configured to be detachable from the ground, and is lifted from the ground at the intermediate portion. The process of making B. the rear end of the trough to a point beyond the lower rear end of the main stem; extending and configuring to rest on the ground at the location; C. When the spring is biased to the raised position and in the raised position The ball can be prevented from coming out of the trough, and when pushed down, the ball can be prevented from coming out of the trough. Prepare a loading lever that allows the module to exit the trough. and a step in which the loading lever is configured such that the hand means claim characterized in that it is adapted to be depressed when in the locked position. The pitching method described in Range 19.