JPS5820306Y2 - baseball batting practice equipment - Google Patents

Description

[Detailed explanation of the invention] Purpose of the invention This invention not only enables baseball batting practice anytime and anywhere, but also significantly improves batting effectiveness by giving the ball a sense of weight comparable to the ball speed of an actual pitch. An earlier patent application filed in 1982-156 that enabled continuous blows at the same time.
This invention relates to an improvement of No. 935 (see Utility Model Application Publication No. 54-83476).

BACKGROUND OF THE INVENTION Conventionally, batting practice for baseball has involved either practicing with the team at the stadium or using a batting machine, which has the disadvantage of not being able to practice as desired.

There was also a simple way to hang a ball by tying a rubber string to it, but the ball bounced so much that it was dangerous.
I couldn't do continuous batting practice.

Structure of the device This device forms a half-split base made of synthetic resin or metal plate molded into a hemispherical shape with a weight inside the bottom, a bolt is inserted into the bottom hole of the half-split base, and a separate half-split base is formed by inserting a bolt into the bottom hole of the half-split base. A half lid body having a stepped fitting edge on the peripheral edge of the opening side is provided, this lid body and the base body are combined to assemble a three-dimensional base, and a separately provided sphere is inserted into the fitting hole of the half lid body. Embodiment 1 will be explained below with reference to the drawings. In Fig. 1, the half-split base 1 of the batting practice tool T is molded from synthetic resin or metal plate, etc. At this time, a weight 2 is attached and molded to the inner bottom by gluing, welding, etc., and a bolt 4 is inserted into the bottom hole 3 at the center of the bottom of this half-split base 1 from the outside.

Separately, a half-split lid body 1 is also split in half and has a stepped fitting edge 5 on the open side periphery, an insertion hole 6 through which the bolt 4 is inserted in a skewered manner in the center, and a fitting hole 8 through which the male screw 7 is exposed concentrically. ', and the lid body 1' constitutes a spherical three-dimensional base A via the stepped fitting edge 5.

An elastic rod 10 having a spherical portion 9 at one end is made of rubber or soft synthetic resin, and has a small steel ball 11 at both ends and the male screw 7.
A wire 13 to which a corresponding cap nut 12 is attached is inserted and molded, and the base on the cap nut 12 side is attached to the fitting hole 8 to assemble the three-dimensional base A.

A carrying string 15 is attached to the hole 14.14 of the half-lid 1'.

Embodiment 2 will be described with reference to the drawings. In FIG. 2, the batting practice tool T' includes a base body 1" having a substantially semi-sphere shape and a weight 2' at the bottom, and a hollow substantially semi-sphere-shaped lid body 1". ``'' are screwed together with a threaded part 16 provided on the open edge to form a three-dimensional base A', and a bolt 4' inserted into an insertion hole 6' drilled at the top of this lid body 1'' A wire 13 whose one end is connected to the upper end of a cap nut 12 screwed with the male screw 7 and a small ball 11 connected to the tip of this wire 13 are inserted, and the tip is made of a soft material such as rubber or soft synthetic resin to form a sphere. An elastic rod 10' having a portion 9' is integrally formed.

Functional example of the device 1 In this device, when practicing baseball batting, the batting practice tool T is attached by string 15 passed through the holes 14 and 14 shown in FIG.
Take it out to the garden or baseball field and place it on the ground.

Next, it is located around the three-dimensional base A at a required interval,
When you hit the ball part 9 with a bat (not shown),
The blow received by the spherical part 9 is transmitted to the elastic rod 10, and the rod 10
This is transmitted to the three-dimensional base A connected via the cap nut 12 and bolt 4, causing it to tilt in the direction of impact.

Three-dimensional base A that was once tilted in the direction of the blow due to this blow
The inclined elastic rod 10 attempts to recover rapidly by the restoring movement of the weight 2 in the balanced direction, and shifts to a swinging movement that gradually becomes smaller. Practice batting as you like, including hitting.

Embodiment 2 In FIG. 2, when the batting practice tool T' is placed on the grass and the practitioner hits the upper end spherical part 9' with a bat according to the procedure of Embodiment 1, the inclined elastic rod 10' quickly recovers. As the ball moves to a damped oscillating motion, you can practice batting as you wish by hitting the nose of the ball repeatedly or while breathing.

Effects of the invention This invention is a spherical structure in which a half-split base with a weight on the inner bottom and a bolt passed through the center is connected to a half-split lid body with an elastic rod with a spherical part built into the tip via bolts. Since a three-dimensional base is formed, batting practice can be practiced freely in a narrow space with a simple device.

Also, with this invention, the weight in the half-split base can be replaced at will using the stepped fitting part, so if the weight is made heavier, the recovery speed of the ball can be increased, and if the weight is replaced with a lighter weight, the recovery speed can be made slower. You can conduct batting practice in a wide variety of complex ways.

Furthermore, since this device supports the ball through an elastic rod, the ball has weight, and the weight, which is comparable to the acceleration of the ball thrown by the pitcher, allows you to feel the instant the bat hits the ball, making it easier to practice. The effectiveness can be practically increased.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of this invention, and FIG. 2 is a longitudinal sectional view of another embodiment. Explanation of symbols of main parts 1. 1"...Half base, 1', 1"'...
... Half-split lid, 2゜2' ... Weight, 3...
...Bottom hole, 4,4'...Bolt, 5...
...Stepped mating edge, 6.6'... Hole insertion, 7...
...Male thread, 8...Fitting hole, 9,9'...
...Spherical part, 10.10'...Elastic rod, 1
1...Small ball, 12...Fukuro nut, 13
...Wire, A, A'... Three-dimensional base, T, T'... Batting practice equipment.

Claims (3)

[Scope of utility model registration request] (1) An elastic rod made of elastic material with an integral spherical part at the tip is vertically attached to the center of the upper surface of a hollow spherical three-dimensional base with a weight inside the bottom made of synthetic resin or metal, and this spherical part is made of metal. A wire having one end connected to the small ball is inserted into the center of the elastic rod, and the other end of the wire is connected to the three-dimensional base via a bolt and a cap nut. Baseball batting practice equipment. (2) A hemispherical half-split base 1 is formed with a weight 2 inside the bottom made of synthetic resin or a metal plate, and a bolt 4 inserted through the bottom 3, which is also hemispherical and has a stepped fitting edge on the opening side. A half-split lid body 1' having an annular ring 5 is formed, an insertion hole 6 and a fitting hole 8 for the bolt 4 are provided concentrically in the center of the lid body 1', and the lid body 1' is stepped. The three-dimensional base A is formed by joining into a spherical shape by the fitting edge 5, and the external thread 7 of the bolt 4 faces the fitting hole 8, and the wire 13 and the wire 1 are separately connected to each other.
Cap nut 12 connecting 3 and small ball 1 at the end of wire 13
1 is inserted and the spherical part 9 is made of an elastic material to form an elastic rod 10, the lower part of this elastic rod 10 is inserted into the fitting hole 8, and is tied to the lower end of the inserted wire 13. Attach the cap nut 12 to the male thread 7 of the bolt 4.
The baseball batting practice tool according to claim 1, which is screwed onto the baseball batting practice tool. (3) Half sphere shape made of cast metal, iron, etc. with 2 weights at the bottom
The base body 1'' provided with the ``3'' and the half-hollow lid 1'' are screwed together by the threaded part 16 to form a three-dimensional base A'. An elastic rod 10' made of an elastic material with a spherical part 9 formed at its tip is connected to a bolt 4' inserted through the upper center of the lid 1'' and a wire 13 inserted at the lower end of the elastic rod 10' with a cap nut. 12. A baseball batting practice tool according to claim 1 of the utility model registration claim, characterized in that the baseball batting practice tool is screwed with a screw.