JPH0433880Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a device that can change the pitching direction of a pitching machine that pitches a ball, such as a baseball, by rotating two pitching rotors to the left, right, or up and down directions. It is related to.

Prior Art A conventional pitching machine is known in which two parallel pitching rotors are rotated at high speed in different directions, and a ball is sandwiched between the pitching rotors and pitched toward home plate. There is. The pitching angle of this device can be changed by supporting one of the two front and rear columns that support the pitching box with the pitching rotor attached so that it can rotate in the axial direction, and sliding the other one almost linearly from side to side. In a device that is movably supported, the pitching angle in the left and right direction is changed by moving a column that slides in a straight line.

Problems to be Solved by the Invention However, although such conventional pitching machines are suitable for changing the angle in the horizontal direction, they are not suitable for changing the angle in the vertical direction.

Furthermore, when changing the angle in the left-right direction, since the structure is such that one of the pillars is used as a fulcrum and the other pillar is rotated, the pillar must be moved considerably in order to change the angle.

Therefore, in view of the drawbacks of the prior art, the present invention has been devised as a device that can easily change the angle not only in the horizontal direction but also in the vertical direction, and that can change the angle greatly with a small movement. The purpose is to provide

Means for solving the problem In other words, the present invention consists of two
Consisting of a book support member and a pitching box that is rotatably supported by the support member, a drive device is installed inside the pitching box to rotate two pitching rotors provided on the outside at high speed via a drive shaft. In the pitching machine configured to rotate the pitching rotor in different directions and to pitch the ball by sandwiching the ball between the rotors, the stand on which the support member is erected is swingable up and down in the pitching direction. The shaft is mounted on a rotating support base,
The rotary support base is horizontally rotatably mounted on the truck via a thrust bearing, and a screw rotatably supported by the rotary support base is screwed to the rear of the base. This purpose is achieved by a pitching machine having a screw rotatably supported on a truck.

Function The pitching machine according to the present invention includes a support member for a pitching box, a stand to which the support member is joined, a rotary support base that supports the base so as to be rotatable in the vertical direction, and a rotation support base that supports the rotary support base. It is configured to be supported by a cart rotatably connected via a trust bearing. Therefore, when changing the pitching direction vertically, the pivoted table is rotated to a predetermined angle, and when changing the pitching direction horizontally,
The rotary support base may be rotated via a thrust bearing.

Embodiment The present invention will be explained in detail below according to an embodiment shown in the drawings. FIG. 1 shows an embodiment of a pitching machine according to the present invention, in which a trolley 1 is equipped with flexible wheels 2 and fixed wheels 3. This trolley 1
A rotary support 5 is rotatably mounted on the top via a thrust bearing 4, and a pair of bearings 6 having a notch 6a in the upper part are coupled to the support 5. The support stand 5 further rotatably supports a screw 8 with a support member 7 at the rear of the pitching machine. A pipe 11 fixed to a stand 10 via a bracket 9 is mounted in the notch 6a of the bearing 6 so as to swing. On the table 10,
Supports 12 and 13 are fixed in parallel, and a pitching box 16 is pivoted above the supports 12 and 13 via shafts 14 and 15. A driving device is installed inside the pitching box 16, and the operation of the driving device causes two rotors 25, which are installed outside, to rotate at high speed in different directions via a drive shaft.
The rear shaft 15 is connected to the handle 17,
By moving the handle 17, the pitching box 16 is rotated via the shaft 15. A semicircular plate 18 is fixed to the handle 17, and this plate 18 is attached to a stopper 19 attached to the support 13.
It is designed to be locked by clipping it in. 10 units
The rear part is cut into a female thread, and a screw 8 is screwed into the female thread. A handle 20 is attached to the tip of the screw 8, and by rotating the handle 20, the stand 10 is rotated in the vertical direction about the bearing 6 as a fulcrum. At the rear part of the rotation support stand 5,
A protrusion piece 21 having a female thread is fixed thereto, and a bearing 2 connected to the truck 1 is attached to the protrusion piece 21.
Screw 2 rotatably supported by 2a, 22b
3 are screwed together. One bearing 2
Since a gear 24 is fixed to the screw 23 on the 2b side, the rotary support base 5 can be rotated in the left-right direction by rotating the screw 23 using a transmission means such as a chain. The connection between the base 10 and the rotating support base 5 is made approximately on a line vertically below the center of gravity of the pitching box.

Effects As described above, the pitching machine according to the present invention rotates at the center of gravity of the pitching machine, compared to conventional machines that adjust the pitching angle in the left and right direction by sliding one side of the support. Because it is configured to connect with a thrust bearing, it is possible to set the pitching angle to a predetermined pitch by simply moving the screw slightly.

Furthermore, since the pitching angle in the vertical direction can be easily changed with a simple structure, the operation is easier than that of the conventional one.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, with FIG. 1 being a partially cutaway side view of the device, and FIG. 2 being a front view of the device. DESCRIPTION OF SYMBOLS 1... Truck, 2... Flexible wheel, 3... Fixed wheel, 4... Strath bearing, 5... Rotating support base, 6... Bearing, 6a... Notch, 7... Support member, 8... ...Screw, 9...Bracket, 10...
...stand, 11...pipe, 12,13...post, 1
4, 15...Shaft, 16...Pitching box, 17...Handle, 18...Plate material, 19...Stopper, 20
...Handle, 21...Protrusion piece, 22a, 22b
... Bearing, 23 ... Screw, 24 ... Gear, 25 ...
...Rotor.

Claims (1)

[Scope of utility model registration request] It consists of two support members standing upright in front and back on the table, and a pitching box rotatably supported by the support members.The drive shaft drives two pitching rotors provided outside the pitching box. In the pitching machine, the pitching machine is equipped with a driving device that rotates the pitching rotor at high speed through the rotor, and is configured to rotate the pitching rotor in a different direction and pitch the ball by sandwiching the ball between the rotors. A rotary support base is mounted on a rotating support base so as to be able to swing up and down in the pitching direction, and the rotary support base is mounted on a trolley via a thrust bearing so as to be rotatable in the horizontal direction, and a rotary support base is mounted behind the base. A pitching machine characterized in that a screw rotatably supported on a truck is screwed together with a screw rotatably supported on a truck, and a screw rotatably supported on a truck is screwed on a rear part of the rotary support base.