JP2006051348A - Pitching machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pitching machine producing straight balls and breaking balls to hit balls in addition to foreseeing ball shooting, looking at the motion of a pitcher figure. <P>SOLUTION: When long rods 49, 50 of a connecting rod 45 of an orthogonal parallel crank mechanism 44 which is a part of a driving device, are put in epicyclic motion, crank mechanisms 30, 31 installed at a bottom base 2 start lever motion, and the pitcher figure 33 with a connecting plate extended to the crank mechanisms 31, 32 starts raising one foot. Disc crank mechanisms 34A, 34B installed in the hip part are started to push up three arms to enter pitching motion. The pitching arm 20 is put in high speed rotation by the restoring force of a tension coil spring 56A when approaching the apex, to go for ball ejection, but at this time, the pitcher figure 33 starts the drop of the foot and swings down the three arms. When the pitching arm 20 passes the apex, a breaking ball delivery means installed in a ball receiving cup 21 is operated receiving the projection of hit objects 61, 62 from a portal frame 60 located overhead, and the ejection of the breaking ball occurs. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

Detailed Description of the Invention

[Technical field to which the invention belongs]

The present invention relates to a pitching machine used in baseball batting practice.
[Conventional technology]

Conventional pitching machines are known to include wheel-type pitching machines and arm-type pitching machines. A wheel-type pitching machine squeezes a ball between a pair of rotating left and right wheels (also called rollers) and uses the rotational force of the wheel to fire the ball. The pitching arm having a ball receiving portion is rotated by using a motor and a tension spring together to launch a ball using a centrifugal force generated.
[Problems to be solved by the invention]

  However, in the above wheel type pitching machine, the ball suddenly jumps out between the left and right wheels, so the batter starts the batting start after the ball jumps out, then hits the ball and hits the ball. The batting is a batting method in which the start of the ball and the timing are taken after the ball jumps out, and has a detrimental effect of practicing timing that cannot be used in actual battles. On the other hand, in the arm-type pitching machine, the turning motion of the pitching arm can be seen up to the half-round stage, and there is also a buzzer sound generator that notifies the ball launch before the ball is fired, so the batter starts the batting start. This can occur in the process of turning around and generating buzzer sound, but since the balls that pop out are only straight balls, the timing of hitting the balls is one tone. When firing a changing ball whose ball speed drops and the trajectory of the ball changes, it is not possible to change the angle of inclination by attaching an inclined plate in the ball receiving part of the throwing arm, so the batter will be informed of firing the changing ball. . Since the batter has the ball in mind that the timing is long, this is useful when intensively practicing the timing of hitting the changing ball, but in the actual battle, the straight ball and various changing ball are thrown freely As you hit the ball as you come, you can't practice timing there. The timing adjustment according to the opportunity leaves a problem because it can be polished by the continuous shooting of the straight ball and the changing ball.

Accordingly, an object of the present invention is to provide a pitching machine that can start the batting by watching the pitcher doll's operation and can generate a straight ball and a changing ball on the ball to be ejected.
[Means for solving problems]

In order to achieve the above object, the pitching machine according to claim 1 of the present invention is such that a pitcher doll standing on a carriage causes a pitching operation in conjunction with the start of the driving device of the pitcher body, In a pitching machine that swings down the arm when a ball with a straight ball and a changing ball is ejected from the thrower body
The thrower body is formed by a motor with a speed reducer and a chain sprocket mechanism, with the orthogonal parallel crank mechanism assembled with the driving device as the scaffolding of the thrower body as a scaffold, and the throw arm is orthogonal Two disc crank mechanisms and two parallel crank mechanisms are disposed on the ball receiving cup that is erected between the front crankshafts of the parallel crank mechanism and attached to the tip of the throwing arm, and the swing arm link And a crank link as an impact device to form a changing ball feeding means, and a portal frame having an impacted object is disposed above the top of the pitching arm on the circumference of the pitch arm. A ball feeder is arranged behind the shape frame, and a relay box for placing the relay is arranged below the ball feeder, and an electric cord is wound around the sleeve of the base on which the main body of the pitcher is placed. take The take-up machine is distributed, and there are three lever crank mechanisms for connecting the pitcher doll at the bottom sleeve part, and the swing arm link and crank link of the two lever crank mechanisms. Is arranged on the side edge of the orbit of the two long rods attached to the connecting rods of the orthogonal parallel crank mechanism, contacts the long rods and receives pressure, and lifts the bottom base at the bottom of the bottom base An underlay plate is placed on the base plate, and a trolley equipped with a pitcher doll is provided on the lower side, but the pitcher doll has a push-up plate and a tension plate on the armpit and crotch of the torso. The push-up plate and the tension plate are connected to the lever crank mechanism installed on the base of the pitcher main body, in which two disk crank mechanisms are arranged in the heel part, and the two disk cranks The swing arm link and swing arm pin of the mechanism form an arm raising mechanism. To.

  According to a second aspect of the present invention, in the pitching machine according to the first aspect, a long projection metal plate is fixed to the crankshaft of the orthogonal parallel crank mechanism, and the long projection metal plate is attached to one end of the building frame. The tension coil spring is attached, and the rotation of the crankshaft is put into high speed rotation by the restoring force of the tension coil spring. By this operation, the pitching arm enters high speed rotation and injects the ball.

  According to a third aspect of the present invention, in the pitching machine according to the first aspect, a small protrusion is fixed inside the sprocket of the chain sprocket mechanism, and the small protrusion is mounted on the relay box once around the sprocket. The operation of the pitching machine body stops at one time.

  The return of the power switch of the relay waits for the battery current to be sent from the outside line, so that the starting of the thrower body depends on the operation of the battery current transmitter placed at the foot of the batter.

In the pitching machine configured as described above, when the pitching arm of the pitcher body starts to rotate by starting the driving device, the long rod attached to the connecting rod of the orthogonal parallel crank mechanism enters the rotation and is installed on the base. The lever movement is caused by two lever crank mechanisms. Then, the lever movement of the two lever crank mechanisms starts raising the pitcher doll's one leg and putting the trunk sideways, and the pitcher doll that has received the one-leg lift enters its pitching motion by lifting their arms. As the throwing arm turns, the pitcher doll raises one foot, turns the body sideways, and finishes raising the arm. However, as the throwing arm turns further, the long rod attached to the connecting rod moves beyond the 90 ° position. The lever motion starts to return to release the crank arm's swing arm link and the pressure on the crank link. Then, suddenly, when the throwing arm receives the restoring force of the tension coil spring and enters the place where it enters the high speed rotation and ejects the ball, the swing arm link and crank link of the lever crank mechanism leaning against the long rod of the connecting rod The pitcher puppet's leg falls into the fall and loses his place, and at the same time swings his arm down, the ball is ejected from the pitching arm at that moment. Since the throwing arm passes under the gate-shaped frame just before the ball is ejected, the colliding equipment of the changing ball feeding means installed in the ball receiving cup collides with an impacted object protruding from the portal-shaped frame. Therefore, a change ball injection is born from there.
[Embodiment of the Invention]

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a right side perspective view of a pitching machine according to the present invention. FIG. 2 is a right side perspective view showing the carriage and the base plate of the machine. FIG. 3 is a front left perspective view of the machine. FIG. 4 is a front left enlarged perspective view of the ball receiving cup of the machine. FIG. 5 is an enlarged perspective view of the right side of the ball receiving cup of the machine. FIG. 6 is an enlarged perspective view of a relay box of the same machine.

  Next, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1, 2, and 3, a cart 3 disposed on the floor or the ground, and a rubber pedestal 15 having a conical through hole in the middle are placed on the cart 3, and On top of that, an underlay plate 6 for arranging a lift with a convex polygonal wheel 18 attached to a motor with a speed reducer is disposed at the rear, and a lower spring is sandwiched between the upper portion of the underlay plate 6 and the thrower body 1 is arranged. The base 2 is placed. It is a long bolt that connects the base 2 of the pitcher body 1 and the underlay plate 6 to the carriage 3. A long bolt is inserted from a hole drilled in the middle of the center of the inverted U-shaped cover that covers the head of the base 2 of the pitcher body 1, and a hole drilled in the middle of the head of the base 2 A small spring and a hole drilled in the base plate 6 are added, and the hole drilled in the rubber pedestal 15 and the hole drilled in the middle of the head of the carriage 3 are connected with a nut. A round bar 19 on which a pitcher doll is mounted is attached to the bottom plate of the carriage 3 at the side end of the head, and the elevator motor 16 installed on the underlay plate 6 is attached to the side edge of the rear left side in a front view. An outlet 17 for bundling a cord for supplying power to the drive motor 39 of the pitcher main body 1 and the motor 65 with a speed reducer attached to the gate-shaped frame 60 is provided. Is installed.

  The base 2 of the pitcher body 1 is formed in a shape in which an irregularly shaped trapezoidal sleeve is attached to a rectangular mother placenta on which the pitcher body 1 is mounted. There are 30, 31, 32 installations. Of the lever crank mechanisms installed at these three locations, the lever crank mechanisms 30 and 32 attached to the outside are connected together by a connecting rod, but the end of the lever lever link 32 located at the tip is connected to the end. A long metal plate whose portion is bent in an inverted L shape is fixed, and the small hole drilled in the bent plate portion at the end of the long metal plate is pinned to the armpit of the play foot of the pitcher doll 33 and rearward A small hole drilled into the end of the push-up plate 36 extending in the direction is fitted and screwed, but the screwing has a certain degree of freedom in the lower part. On the other hand, the lever crank mechanism 31 installed in the other place has a swing arm link with a link having a lever-shaped through hole in the upper inscribed part, but the crank link extends long above the fixed node. The end of the crank link is joined to a small hole in the end of the tension plate 54 that is attached to the orthogonal metal plate 53 fixed to the crotch of the shaft leg of the pitcher doll 33 and extends backward. It is stopped by a headed pin and is continuously attached to the tension plate 54. Here, the lever crank mechanisms 30 and 31 cause the lever movement to be fixed to two positions of the connecting rod 45 of the orthogonal parallel crank mechanism 44 which is a part of forming a driving device in the pitcher body 1 described later. The rotation by the rods 49 and 50 presses the edge wall of the lever-shaped through hole of the enlarged swing arm link of the 31 lever crank mechanism and the upper position edge wall of the bow-shaped crank link by the upper part of the 30 lever crank mechanism. Since it rotates, a lever movement occurs. Conversely, when the long rod passes by rotation, the lever loses the pressure, and the lever movement is solved.

  At the front part of the base 2 of the thrower body 1, two inverted F-shaped steel pillars with horizontal beams extending from the middle part and the upper part of the steel pillars are set up at a parallel interval, and two iron pillars at the rear part at a narrow parallel interval. Standing up, the front F-shaped steel pillar and the rear steel pillar are passed on one side with two fixed beams, and the other is built with a fixed beam at the edge between the floors on the bottom. increase. A motor 39 with a speed reducer is installed between the floors formed by the ratio, and a chain / sprocket mechanism 40 is disposed on the motor 39 with a speed reducer. The shaft hole of the sprocket 41 of the chain / sprocket mechanism 40 is fitted with the outer periphery of the bearing of the driving shaft of the crank 47A of the orthogonal parallel crank mechanism 44 assembled using the building frame as a scaffold, as a shaft hole element. Small protrusions are fixed to the inside and the outside of the sprocket 41, and the small protrusions attached to the inside are inverted L-shaped exposed to the outside from a relay box 80 (see FIG. 6) disposed on the side of the sprocket 41. In contact with the shape power switch 81, the switch is pressed and cut every round. Further, the small protrusion attached to the outside of the sprocket 41 comes into contact with an engaging member fixed to the shaft portion on the back side of the crank 47A of the orthogonal parallel crank mechanism 44 to put the crank 47A into rotation. Here, when the crank 47A of the driving shaft receives a rotation transmission from the sprocket 41, this transmission is transmitted to the crank 47B on the inverted F-shaped iron pillar side via the connecting rod 45, and therefore, between the crank 47B and the crank 47C. The throwing arm 20 erected at the midpoint of the crankshaft to be turned enters rotation.

  Cranks 47A, 47B, 47C and 47D of the orthogonal parallel crank mechanism 44 are seen in the front view on the left side and two on the left side and on the right side in the front and back direction, but the angle at which the crank is attached to the shaft is different on the left and right sides. . The angle at which the crank attaches to the left and right shafts is different because when one crank enters a disadvantageous position to transmit rotation, the other crank is in an advantageous position and continues to rotate. The crankshaft 47D is used for the left drive shaft side crank as viewed. A metal plate with a long projection 55 is fixed to the crankshaft 47D, and the hook of the tension coil spring 56A is attached to the long projection 55. Therefore, the tension coil spring 56A is pulled by the rotation of the crankshaft 47D. When the maximum extended position is exceeded, the tension coil spring 56A contracts at an explosive momentum, and the crankshaft 47D enters high speed rotation, so that the pitching arm 20 also enters high speed rotation.

  The pitching arm 20 enters a high-speed rotation position after the ball receiving cup 21 fixed to the tip of the pitching arm 20 picks up the ball from the ball feeder 71B, and toward the apex, about 35 degrees before the apex. Although it is in a position, an object to be collided 61 which collides with an impact device of a changing ball feeding means arranged in the ball receiving cup 21 is located above the position where the ball receiving cup 21 of the pitching arm 20 is 15 degrees past the apex. , 62 is standing.

  The gate-shaped frame 60 has the body placed on the upper beam portion of the inverted F-shaped iron pillar. In the body, a disc 66 with a crank is connected to a motor with a speed reducer, and the crank of the disc 66 with a crank is connected. While the pivot of the engaging material attached to one end of the ark 67 is pivotally supported, the upper part of the gate-shaped frame is fixed to the front outer wall of the ark 67, and the gate-shaped frame is suspended at the lower part. Among them, a rubber wheel 61 is provided on both legs of the portal frame, one long metal plate 62 is provided on the left side of the beam portion, and two long metal plates 62 are provided on the right side under the installation of fasteners. It is attached. The rubber wheel 61 and the long metal plate 62 are both impacted objects, and one or two of the rubber wheels 61 and one or two of the long metal plates 62 are held down by opening and closing the stopper. When the lifting is stopped, the impacted object colliding with the impacting equipment provided in the ball receiving cup 21 is changed at any time, so that a changeable ball ejection by a curve, a chute and a fork is generated from here. In addition, the straight ball is born from a state where there is no collision object.

  As for the changing ball feeding means provided in the ball receiving cup 21 of the throwing arm 20, reference is made to FIGS. 4 and 5, the disk crank mechanism 23 </ b> A is provided on the back bottom of the ball receiving tray 27 provided with three finger-shaped metal plates 24. 23B is distributed to the left and right, and two finger-shaped metal plates 24 are disposed behind the ball tray 27, and a pair of crank links 26 and a pair of disk crank mechanisms 23A and 23B are provided. Each of the swing arm links 28A and 28B is tailored as a collision device.

  Box-shaped ball feeders 71A and 71B are arranged in two stages on the back side of the portal frame 60, and a relay for placing a relay in the box below the ball feeder 71B. A box 80 (see FIG. 6) is installed. In the relay mounted on the relay box, the head of the power switch portion 81 is placed outside the box, but the contact lead-out terminal is wired with a single power cord on the fixed contact side and the drive motor on the movable contact side. Although a single wire cord for sending an anode current is attached to 39, the connection between the fixed contact and the movable contact is caused by the generation of magnetization by the electromagnet 83 and the reverse L-shaped power switch 81 is attracted by the electromagnet 83. Is generated when battery current is transmitted from the outside line. Although the electric cord drawn from the outside line is wired to the coil terminal by the electromagnet 83, the power transmission from the outside line is performed from the batter side. An electric cord winder installed on the sleeve portion of the base 2 is used to wind an external line that relays power transmission from the batter side.

On the other hand, the pitcher doll 33 is pivotally inserted into the round bar 19 of the carriage 3 and the other leg (play leg) is installed on the base 2 of the pitcher body 1 under the armpit. The push-up plate 36 connected to the lever crank mechanism 32 is fixed by a pin. The joint part of the knee of the foot is fixed with a pin with a head and can be rotated, but the buttock is fixed with a long pin with a head at the center of the buttock on the body side, but this is also freely rotatable . A disc crank mechanism 34A is arranged inside the flange with a pin attached to the inner side end of the flange as a connecting rod shaft. The connecting rod of the disc crank 34A extends to the position of the chest in the torso, and this connecting rod is stopped by a swinging arm link and a headed pin extending with a pin fixed to the side end of the chest in the torso as a fixed axis. However, the swinging arm link is a link that extends long forward through the headed pin, and this swinging arm link goes out of the body and enters the glove of the arm with the glove attached to the glove. Engages with pins to lift arms with gloves on. On the other hand, another disk crank mechanism 34B is provided with a pin attached to the upper part of the other end inside the collar as a connecting rod shaft. Here, the connecting rod of the disc crank mechanism 34B also extends to the position of the chest in the fuselage and merges with the swing arm link pin, but the swing arm pin here is a long pin that penetrates the trunk and penetrates the longitudinally long hole. Then put the hips out on the back of the torso. The long pin butt is covered with a horizontal elliptical hole in the center of the base of the hand holding the ball, but a headed pin sticks into the small hole in the side edge of the base and sticks to the trunk. So this hand is hanging down and in a cranked state. When the buttocks of the play leg are pushed up and the buttocks rotate and the long pin is lowered to the lower part, the bottom of the long pin presses the edge wall of the horizontal elliptical small hole and pushes the small hole to the lower part. The hand that holds the will lift from bottom to top. In addition, there is another arm here and a third arm, but this arm is an arm that shows a swing that throws the ball and is good at swinging down, but the shoulder of this third arm is on the torso The straight shaft of the small gear that is fixed to the inner shoulder portion is fixed. A large gear 35 is attached in parallel to the small gear as a driving gear, and a pull rod attached to the middle portion of the long pin of the swing arm link of the disk crank mechanism 34B is attached to the large gear 35. Since it is attached to the pin attached to the inside, when the long pin goes down, the large gear 35 rotates a little and turns the small gear, so that the third arm is lifted up. In addition, a tension plate 54 is disposed on the orthogonal metal plate 53 attached to the crotch portion of the body, and this tension plate 54 is connected to the crank link of the lever crank mechanism 31 installed on the bottom base 2 of the throwing machine body 1. When the crank link of the lever crank mechanism 31 is shaken, the body of the pitcher doll 33 is turned sideways.
[The invention's effect]

  While watching the pitching motion of a full-scale pitcher doll, the effect of starting batting is great. If it becomes possible to make the starting point for entering batting uniformly, it will be possible to practice with certain timing due to the difference in the type of ball approaching after the ball is injected.

FIG. 1 is a right side perspective view of a pitching machine according to an embodiment of the present invention.
FIG. 2 is a right side perspective view showing the carriage and the base plate of the pitching machine of the embodiment.
FIG. 3 is a front left perspective view of the pitching machine of the embodiment.
FIG. 4 is a front left enlarged perspective view of a ball receiving cup of the pitching machine of the same embodiment.
FIG. 5 is an enlarged perspective view on the right side of the ball receiving cup of the pitching machine of the same embodiment.
FIG. 6 is an enlarged perspective view of a relay box of the pitching machine of the same embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Thrower main body, 2 ... Bottom base of thrower main body, 3 ... Dolly, 6 ... Underlay board, 20 ... Throw arm, 21 ... Throw cup, 23A, 23B ... Disk crank mechanism in the ball receiving cup, 24 ... Finger-shaped metal plate, 25 ... Parallel crank mechanism in the ball receiving cup, 30, 31, 32 ... Lever crank mechanism, 33 ... Pitcher doll, 34A, 34B ... disc crank mechanism in the heel, 35 ... large gear, 39 ... motor with speed reducer of pitcher body, 41 ... sprocket, 44 ... orthogonal parallel crank 45, connecting rod of orthogonal parallel crank mechanism, 47A, 47B, 47C ... crank of orthogonal parallel crank mechanism, 47D ... crank shaft of orthogonal parallel crank mechanism, 49, 50 ... Long rod, 56A, 56B ... Tensile carp Spring, 60 ... portal frame, 61 ... rubber wheel, 62 ... long metal plate, 71A, 71B ... ball feeder, 80 ... relay box, 81 ... reverse of relay L-shaped power switch, 83... Electromagnet.

Claims (4)

A pitching doll that is mounted on a cart causes a pitching motion in conjunction with the start of the thrower body drive device, and swings the arm down when a ball with a straight ball or a changing ball is ejected from the pitcher body. In
The thrower body is formed by a motor with a speed reducer and a chain sprocket mechanism, with the orthogonal parallel crank mechanism assembled with the driving device as the scaffolding of the thrower body as a scaffold, and the throw arm is orthogonal Two disc crank mechanisms and two parallel crank mechanisms are disposed on the ball receiving cup that is erected between the front crankshafts of the parallel crank mechanism and attached to the tip of the throwing arm, and the swing arm link And a crank link as an impact device to form a changing ball feeding means, and a portal frame having an impacted object is disposed above the top of the pitching arm on the circumference of the pitch arm. A ball feeder is arranged behind the shape frame, and a relay box for placing the relay is arranged below the ball feeder, and an electric cord is wound around the sleeve of the base on which the main body of the pitcher is placed. take The take-up machine is distributed, and there are three lever crank mechanisms for connecting the pitcher doll at the bottom sleeve part, and the swing arm link and crank link of the two lever crank mechanisms. Is arranged on the side edge of the orbit of the two long rods attached to the connecting rods of the orthogonal parallel crank mechanism, contacts the long rods and receives pressure, and lifts the bottom base at the bottom of the bottom base An underlay plate is placed on the base plate, and a trolley equipped with a pitcher doll is provided on the lower side, but the pitcher doll has a push-up plate and a tension plate on the armpit and crotch of the torso. The push-up plate and the tension plate are connected to the lever crank mechanism in which the main body of the pitcher is installed on the base, in which two disk crank mechanisms are arranged in the heel part, and the two disk cranks The swing arm link and swing arm pin of the mechanism form an arm raising mechanism. Pitching machines that.   The metal plate with long projections fixed to the crankshaft of the orthogonal parallel crank mechanism has a tension coil spring attached to one end of the building frame, and high-speed rotation is applied to the rotation of the crankshaft. Pitching machine.   The small protrusion is fixed inside the sprocket of the chain sprocket mechanism, and the small protrusion presses a power switch of a relay mounted on the relay box on one turn of the sprocket to turn it off. Pitching machine.   The pitching machine according to any one of claims 1 to 3, wherein the turn-on of the power switch of the relay waits for battery current to be sent from the outside line.

Images