JPS5827945B2 - Kiyugiki - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ball quality changing device in a ball game machine for practicing ball games such as baseball and tennis. For example, when practicing baseball batting, the quality of the pitched ball can be changed from fastball, shot, curved ball, etc.
This allows the ball to be pitched by changing it to a drop or the like.

In addition, the operation of changing the ball quality can be performed sensually, so that the desired ball quality can be selected.

An embodiment of the spherical quality changing device according to the present invention will be described in detail below with reference to the accompanying drawings.

1 is a machine frame, and this machine frame 1 has a shaft support 2 on the upper frame of the center part.
Attach and support the shaft 3 of one rotation.

A pair of sprockets 4, 4 are loosely fitted to the rotating shaft 3 at intervals, and these sprockets 4, 4 are connected to sprockets 7, γ and chino 8, which are driven by a drive unit 5 such as a motor or prime mover via a reducer 6. It is designed to rotate in conjunction with each other.

Further, a rotating arm 9 is attached to the rotating shaft 3 between the sprockets 4, 4.
The proximal end of the attachment piece 10, which is attached to the distal end side, is attached using a key.

Further, a push-up rod 11 is horizontally mounted at an eccentric position between the sprockets 4 and 4, and its ends are attached to the sprockets 4, 4, respectively, and the push-up rod cooperates with the sprockets 4, 4 when the sprockets 4, 4 rotate. At 11, the rotary arm 9 is hooked so that the rotary arm 9 is hooked and rotated about the rotary shaft 3.

A lock plate 1 is attached to both ends of the rotating shaft 3 by a key.
2 is installed.

The lock plate 12 is provided with an adjustment hole (not shown), and the rotary plates 13, 13, which are located outside and in contact with the lock plate 12, are adjusted in accordance with the timing position with the rotary arm 9, and screwed. Attach them together with rods, etc.

A pin 14 is installed at an eccentric position on each of the rotating plates 13 and 13, and a locking plate 17 connected to the pin 14 via a connecting rod 16 has a plurality of springs 15 locked at its upper end arranged therein. It is suspended.

The lower end of the spring 15 is engaged with a lower engagement plate 17' facing the engagement plate 17.

The base end of a screw punch 18 is attached to the lower locking plate 17', and the screw punch 18 is inserted into the receiving piece 19 from the machine frame 1, and the adjustment bundle 20 screwed onto the screw punch 18 is used to store the force of the spring 15. This allows you to adjust the intensity.

The rotary arm 9 has a bearing plate 21 facing at its tip, and a pair of clamping plates 24, 24 formed with two flat surfaces 22 and an arcuate surface 23 with a radius centered on the shaft part, which is suitable for receiving the sphere a. A shaft 26 disposed facing the shaft 26 at a distance is supported.

A pair of clamping plates 24, 24 are attached to the shaft 26 with an interval suitable for receiving the ball a and shifted by 90 degrees, thereby forming the pitching body 25.

In addition, the inner edges of the opposing parts of the clamping plates 24 and 24 are formed into slopes to facilitate receiving the sphere a, and furthermore, the diagonals of the arcuate surfaces 23 are provided with horizontal grooves 23'.

It should be noted that the configuration of the pitching body 25 does not necessarily have to be the above-mentioned configuration; it is sufficient that the configuration allows minimal stepwise rotation and does not cause any change in the clamping surface due to the rotation. It is.

Further, a stopper 27 having a square south end is fixed to one end of the shaft 26, and a free end of an elastic spring plate 28, one end of which is fixed to the shaft support plate 21, is attached to either feeding direction of the stopper 27. This prevents them from rotating freely.

A cross-shaped rotary plate 29 is attached to the other end 4 of the shaft 26 opposite to the stopper 21, and this rotary plate 29 is supplied with the ball from the position after the pitch between the rotary orbits of the rotary arm 9. A blocking piece 31 connected to a radio-operated electromagnetic solenoid 30 attached by pivoting a bent portion to a mounting piece 33 of the machine frame 1 is placed in between, and when the blocking piece 31 is activated, the pitcher 25 is blocked by the rotation of the rotary arm 9. [The cross-shaped rotary plate 29, which engages with the protrusion 39 of the cross-shaped rotary plate 29 and advances in conjunction with the rotation of the rotary arm 9, when passing through the installation part of the piece. The blocking piece 31 is engaged with the protrusion 39, and the rotating plate 29 is forcibly rotated by one step due to the anti-progress force, and the pitching body 25 is also rotated by one step accordingly, changing the gripping surface. That's how it is.

Each blocking piece 31 is connected to an electromagnetic solenoid 30 that can be operated wirelessly, and is operated by the electromagnetic solenoid 30 to engage and disengage the rotary plate 29.

Further, a gutter-shaped receiving plate 33 is attached to the upper tip of the rotating arm 9, and a receiving portion 3 of a sphere a is provided in the orbit of the rotating arm 9 of the machine frame 1.
4 is scooped up as it rotates via a push-up rod, and sent to a clamping plate at the tip by a receiving plate 33, where it is clamped on the clamping plate 24.

Further, the receiving portion 34 of the sphere a is connected via a shutter to an introduction pipe 36 which is connected to a hopper placed on a frame 35 positioned side by side with the machine frame 1, so that the sphere a is supplied to one location by the shutter. It has become.

Further, a lifting frame 37 is installed horizontally at the front end of the machine frame 1, and the height thereof is adjusted using a screw punch 38 provided thereon.

This screw punch 38 may be adjusted by attaching a worm gear to the screw punch 38 so that it can be operated wirelessly, and meshing the worm gear with the worm.

The present invention has the above-mentioned configuration, and first, in order to pitch, the height of the machine frame 1 is adjusted with a screw punch, and the sprocket 4.4 loosely fitted on the rotating shaft 3 horizontally suspended on the machine frame 1 is adjusted. Rotation is applied by driving from the drive unit 5.

As the sprockets 4 and 4 rotate, the push-up rod 11 horizontally suspended between the sprockets 4 and 4 also rotates at the same time.
When the rotary arm 9 attached to the rotary shaft 3 is pushed up and rotated around the shaft 3 in step 1, the rotary arm 9 and the rotary shaft 3 integrated with the rotary plate 1
rotates against the spring 15 acting on 3 and 13,
The receiving portion 3 of the sphere a provided in the orbit of the rotating arm 9 during its rotation
4 and is waiting, the ball a is scooped up by the receiving plate 33 provided on the rotating arm 9, and the ball a moves further along the receiving plate 33, and is turned into a pitcher by the centrifugal action during the rotation of the rotating arm 9. 25 clamping plates 24
, 24 and is received, and the rotary arm 9 is gradually pushed up and rotated, and the rotary plate 13 attached to the rotary shaft 3 is rotated.
When the connecting rod 16 connected to the springs 15 of , 13 passes the center of the rotating shaft 3, that is, beyond the dead center, the force stored in the spring 15 acts, momentarily pulling the rotating plates 13, 13, and suddenly An integral rotary arm 9 provides rotation via a rotary shaft 3.
Gives instantaneous fast rotation to.

As the rotating arm 9 rotates, the ball a held between the holding plates of the pitching body 25 at the tip is thrown away from the holding plates 24 and 24 due to the rapid rotation of the rotating arm 9.

If the holding surface that holds the ball a when pitching is held between the flat part and the flat part 22, it will be a straight ball, and if the ball is caught by the flat part 22 and the arcuate surface 23, it will be a curved ball. Alternatively, if the ball is pitched as a shot and the ball is pitched on an arcuate surface or arcuate surface 23, the ball is pitched as a drop, and the quality of the ball changes depending on the change in the gripping surface.

Further, in order to change the position of this holding surface, ie, between planes and planes, between arcuate surfaces and planes, and between arcuate surfaces and arcuate surfaces, an electromagnetic solenoid 30 is provided correspondingly between the orbits on which the rotary arm 9 rotates. By wirelessly operating the blocking piece 31, the blocking piece 31 appears and disappears and is moored with the cross rotating plate 29. When the arm 9 rotates while the blocking piece is extended, the blocking piece locks the cross rotating plate 29, and the rotating arm The rotation rotates the cross rotating plate, which applies rotation to the clamping plate via the shaft.

(In this case, if the solenoids 30 are provided at three locations, the rotational position of the clamping plates 24, 24 can be freely selected by rotating the rotary arm 9 once. The desired pitch type can be selected and pitched by rotating once or twice.

) As described above, the present invention scoops up the sphere a in the receiving part 34 and further pushes it up while the rotary arm 9 rotates via the push-up rod horizontally mounted on the sprocket when the drive part 5 is driven. When the ball a is rotated by a stick and held between the holding plates of the pitching part 35, and the point where the spring 15, which is locked to the rotating plate 13 provided on the rotating shaft, connects the rotating shaft 3 and the connecting rod 16, passes the dead center. The force accumulated in the spring 15 instantaneously rotates the rotating shaft and the rotating arm, and this rotation causes the ball held by the clamping plates 24 and 24 to be thrown away from the clamping plates, and the ball a When it is desired to change the quality of the sphere, a blocking piece 31 connected to a solenoid 30 disposed on the rotating orbit of the rotary arm is projected toward the cross rotation plate 29, and when the rotating arm 9 rotates, the blocking piece 31 causes the cross rotation. Rotation is applied to the shaft and the clamping plate through the plate 29, and the quality of the ball is changed by the combination of the flat part and the arcuate surface provided on the clamping plate. It is convenient because it can be operated with .

[Brief explanation of drawings]

The drawing shows an embodiment of the ball game machine according to the present invention.
Figure 1 is a side view, Figure 2 is a plan view, Figure 3 is an enlarged view of the clamping plate at the tip of the rotating arm, Figure 4 is a front view of Figure 3, and Figure 5 is an exploded perspective view of the clamping plate. be. 1...Machine frame, 2...Shaft bearing, 3...
... Rotating shaft, 4... Sprocket, 5...
...Drive unit, 6...Reduction gear, 7...
Sprocket, 8...Cheno, 9...
Rotating arm, 10...Mounting piece, 11...Pushing rod, 12...Lock plate, 13...
...Rotating plate, 14...Pin 15...
・Spring, 16...Connecting rod, 17...
...Lock plate, 18...Screw pestle, 19...
Receiving piece, 20...Bundle, 21...Bearing plate, 22...Flat portion. 23... Arc-shaped ffi, 23'... Horizontal groove, 24... Holding plate, 25... Throwing body, 26... Axis , 27...stopper
28...Spring plate, 29...Cross rotating plate. 30... Solenoid, 31... Blocking piece, 32... Mounting piece, 33... Receiving plate, 3
4... Receiving part, 35... Frame, 36...
...Introduction pipe, 37... Lifting frame, 38...
・Screw punch, 39 ・・・Protrusion of cross rotating plate, a・
·····sphere.

Claims (1)

[Claims] 1 A ball is supplied to the tip of a rotating arm that repeatedly moves from a slow upward rotation to a steep downward rotation using a push-up rod and a tension spring that rotate according to the rotation of a rotating shaft supported on the machine frame. At the tip of the arm of a ball game machine that performs one rotation,
A pitching body is installed in which polygonal clamping plates consisting of straight sides and arcuate sides with uneven end faces are shifted by 90 degrees from each other and are attached with one sphere clamping interval, and are connected to this pitching body to form an integral unit. A cross-shaped rotary plate that rotates and a rectangular stopper with an elastic spring acting on the feeding direction are provided, and the cross-shaped rotary plate engages with the protrusion of the cross-shaped rotary plate and moves in conjunction with the rotation progress of the rotary arm. The rotating plate is rotated using the progress-preventing drag of the ball, and the blocking piece, which rotates the pitching body by this rotation, is moved from the position where the rotating arm completes pitching to the position where the ball is supplied to the pitching body. A ball quality changing device for a ball game machine, characterized in that the ball quality changing device is disposed at the tip orbit of a rotating arm so as to correspond to a cross-shaped rotary plate, and the blocking piece is linked with a solenoid to enable operation from a remote location.