JPH0553158B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device that fires balls such as baseballs by rotating the pitching rotors of two pitching boxes, in which balls are fired from one pitching machine in different directions. This relates to a pitching machine that can fire two balls at the same time and can pitch different types of balls to one batter.

Prior Art There is no known pitching machine that can pitch two balls at the same time.

As shown in FIGS. 7 and 8, a conventional pitching machine has two pillars 12 and 13 erected in front and back on a table 10, and a shaft 14,
A pitching box 16 is rotatably supported via a pitcher 15, and a drive device for rotating two external pitching rotors 25 at high speed via a drive shaft is installed in the pitching box 16, and Pitching rotor 2
In this pitching machine, a table 10 supporting the pitching box 16 can be rotated up and down around the center of the table 10 as a fulcrum. The rotary support base 5 is mounted on a shaft via a pipe 11 below the base 10 so as to rotate in the direction, and the rotary support base 5 is attached to the trolley 1 via a thrust bearing 4 so as to be rotatable vertically below the fulcrum. The base 10 and the rotation support base 5
A pipe 11 supported perpendicularly to the pitching direction below the base 10 is mounted on a rotary support base 5, and a screw 8 locked at the rear of the rotary support base 5 is connected to the base. 10 screwed together is known. (Jitsukai 63-71072
issue).

Such a pitching machine has the advantage of being able to change the pitching direction from front to back, left and right, and also being able to pitch various types of balls by rotating the pitching box and changing the rotational speed of the pitching rotor.

Problems to be Solved by the Invention However, in the case of such conventional pitching machines, only one ball can be pitched at a time, and it is not possible to pitch in different directions at the same time.

If two pitchers are to be pitched at the same time, the only option is to use two pitching machines of the same type side by side to pitch, but in such a case, there is a problem in that it takes up too much space.

When pitching different types of balls to batters, it is necessary to set the pitching direction, angle, etc. each time, which has the disadvantage of taking time to set.

Therefore, in view of the drawbacks of the prior art, the present invention
To provide a device capable of simultaneously pitching two balls in different directions with one device and capable of pitching different types of balls to one batter.

Means for Solving the Problems That is, the present invention provides a trolley equipped with wheels,
a support stand having bearings rotatably supported in the horizontal direction at one front part and the other rear part of a part divided vertically into two with respect to the traveling direction of the trolley;
A pitching table pivotally mounted to the shaft bearing of the support base, a column connected upright in parallel to each other in the front and back of the pitching direction of each pitching table, and a column rotatably supported by the column via a shaft. Consisting of two pitching boxes, the swinging of the pitching table is stopped by screwing the screw screw whose tip end is loosely fitted into the support table into the rear part of the pitching table, and the rotation of the support table is locked. is connected to a fan-shaped horizontal plate connected to the rear of the support base in the pitching direction, an arcuate groove cut in the plate, a screw that passes through the groove and is connected to the cart, and a nut screwed into the screw. This objective is achieved by a pitching machine configured to be stopped.

Function In the pitching machine of the present invention, two pitching boxes are mounted diagonally on a rectangular cart, and the pitching boxes can freely change the pitching direction back and forth and left and right without colliding with each other.

Therefore, the pitching direction is determined, and each support base is rotated horizontally on the cart and locked accordingly.

Next, the swing angle of the pitching box is determined and fixed by adjusting the screw between the pitching table and the support base.

Furthermore, the pitching box, which is rotatably supported by the support via a shaft, is rotated to determine the type of pitch to be pitched, and the pitching is performed.

Since the pitching box is equipped with an independent drive device, by simultaneously sandwiching the balls between two types of pitching rotors, it is possible to shoot different types of balls in different directions at the same time.

It is also possible to alternately pitch balls of different types and speeds in the same direction.

Embodiment The present invention will be explained in detail below according to an embodiment shown in the drawings.

FIG. 1 shows a side view of the device according to the present invention, in which a square truck 30 is equipped with fixed wheels 32 and flexible wheels 34 at the front and rear of its lower part.
A rectangular support stand 36, 3 with a U-shaped cross section is provided on one front part (left side when viewed from the front) and the other rear part (right side when viewed from the front) which is vertically divided into two parts at the top.
7 is pivotally mounted via shafts 38 and 39 so as to be rotatable in the horizontal direction. Bearings 40 and 41 are joined to the support stands 36 and 37, respectively, and the bearings 40 and
41, rectangular pitching tables 42a, 42b having a U-shaped cross section and running approximately parallel to the support stands 36, 37 have shafts 43, 44.
It is swingably supported via the

Supports 45a, 45b, 46a, 46b are vertically connected to the front and rear of each pitching table 42a, 42b in the pitching direction.
A pair of pitching rotors 51, 52 are attached to pitching boxes 49, 5 via shafts 47, 48 to a, 46b.
0 is rotatably supported.

The support stands 36 and 37 have shafts 38 and 39, respectively.
However, the supports 36 and 37 are placed on floating rollers 31 mounted on the truck 30 in order to distribute the load applied to the supports 36 and 37.

Fan-shaped angle adjusting plates 53, 54 are joined to the support stands 36, 37 in the horizontal direction at the rear in the pitching direction, and grooves are formed on the arcs of circles centered on the axes 38, 39 of the plates. 55 and screws 56, 5 that pass through the groove 55 and are connected to the trolley 30.
7, and a nut 5 screwed onto the screws 56 and 57.
The supports 36 and 37 are latched to the cart 30 by means of 8 and 59.

The pitching tables 42a, 42b and the supports 36, 37 are rotatably locked at the rear of each support 36, 37, and a screw screw 60 is screwed into the rear of the pitching tables 42a, 42b, and the screw 60 The swing angle can be adjusted by a handle 62 attached to the tip of the handle.

The rotation angle of the pitching boxes 49, 50 rotatably supported by the pillars 45a, 45b, 46a, 46b is determined by the fan-shaped angle plate 64 connected to the rear shaft of the pillars 46a, 46b and the pitching boxes 49, 50 attached to the pillars 46a, 46b. In this embodiment, the shaft 47,
An angle handle 68 that is synchronized with the angle plate 64 is connected to each of the angle plates 48 .

70 is a hand handle connected to the truck 30, and 72 is a hammer lock for fixing the truck to the ground.

In the configuration described above, the pitching machine according to this embodiment can move in a predetermined direction because the wheels 32 and 34 are attached to the cart 30.

After moving, the trolley 30 can be firmly fixed to the ground by setting the hammer lock 72.

The supports 36 and 37, which are pivotally connected to the cart 30 and placed on the idler roller 31, can rotate in the horizontal direction, but the rotation angle is
fan-shaped plates 53, 54 joined to 6, 37;
groove 55 and screws 56 and 57 that slide in the groove 55
and the screw 55 at a predetermined angle.
56 is screwed into the nuts 58, 59 and tightened.

Further, the pitching tables 42a and 42b, which are swingably supported by the support stands 36 and 37, are screwed together with the screws 60 that are engaged with the support stands 36 and 37 by rotating the screws 60 with the handle 62. Pitching table 42a,
One end of 42b moves up and down, changing the angle.

The pitching boxes 49, 50 are rotatably supported by columns 45a, 45b, 46a, 46b that are vertically connected to the pitching tables 42a, 42b. After rotating to the specified angle, stopper 6
If the angle plate 64 is tightened at 6, it will be locked at a predetermined angle.

Therefore, the support stands 36 and 37 are rotated, and the pitching box 4 is
If the balls 9 and 50 are positioned so that they diverge at an acute angle toward the pitching direction, two balls can be shot simultaneously in different directions.

Furthermore, when pitching to one batter, the type, speed, and course of the pitch can be easily changed by alternately pitching from the pitching box.

Note that any type of pitch can be selected by changing the rotational speed of the pitching rotor or by changing the rotation angle of the pitching box.

Effects As described above, compared to conventional pitching machines, the pitching machine according to the present invention can simultaneously launch a plurality of balls in different directions without occupying space.

Furthermore, once set up, the pitching machine according to the present invention can continuously pitch to one batter using two types of pitches, different ball speeds, etc., so it is more efficient than conventional devices. You can practice batting.

Further, in the pitching machine according to the present invention, the horizontal rotation of the support base is controlled by a horizontal plate, an arcuate groove formed in the plate, passing through the groove, and being screwed into a screw connected to the cart. Since it is configured to be locked with a nut, it is possible to rotate the support base more quickly in the horizontal direction and to lock the support base more reliably than in the conventional case.

[Brief explanation of drawings]

1 to 6 show an embodiment of the device according to the present invention, and FIG. 1 is a side view of the device, and FIG. 2 is a side view of the device.
The figure is a rear view of the device with a part omitted, FIG. 3 is a plan view of the device, and FIG. 4 is a partial side view with a part seen through.
Fig. 5 is a front view of the device showing the pitching box in a rotated state, Fig. 6 is a partial front view showing the pitching box in another rotated state, and Fig. 7 is a partially cutaway view of the device showing the prior art. The side view, FIG. 8, is a rear view of the conventional device. 1...Dolly, 4...Strist bearing, 5
...Rotating support base, 7...Support member, 8...Screw,
10... stand, 11... pipe, 12, 13... support, 14, 15... axis, 16... pitching box, 25...
...Rotor, 30...Dolly, 31...Idle roller,
32... Fixed wheel, 34... Flexible wheel, 36,3
7... Support stand, 38, 39... Shaft, 40, 41...
...Bearing, 42a, 42b...Pitching table, 43, 44
... shaft, 45a, 45b, 46a, 46b ... pillar, 47, 48 ... shaft, 51, 52 ... pitching rotor, 53, 54 ... plate, 55 ... groove, 5
6,57...Screw, 58,59...Nut, 60
...Screw screw, 62...Handle, 64...
... Angle plate, 66 ... Stopper, 68 ... Angle handle, 70 ... Hand push handle, 72 ... Hammer lock.

Claims (1)

[Claims] 1 A support having a cart equipped with wheels and bearings that are rotatably supported in the horizontal direction at one front and the other rear of a part divided vertically into two with respect to the traveling direction of the cart. a base, a pitching table pivotally connected to the bearing of the support base so as to be able to swing; a column connected vertically in parallel to each other in the direction of pitching of each pitching table; It consists of two supported pitching boxes, and the swinging of the pitching table is stopped by screwing the tip of the screw screw loosely fitted into the support table into the rear part of the pitching table, and the rotation of the support table is stopped. The lock consists of a fan-shaped horizontal plate connected to the rear of the support base in the pitching direction, an arc-shaped groove cut in the plate, a screw passing through the groove and connected to the cart, and a nut screwed into the screw. A pitching machine characterized by being configured to be locked with.