JP3242950U - practice bat - Google Patents

Abstract

To provide a bat for practice that enables batting practice with the same feeling as a bat for a game and is hard to break even when receiving the impact of batting. The bat for practice has a tip portion D thinner than that of the game bat, a hitting portion B of the same thickness as that of the game bat, and a taper portion A thicker than that of the game bat, so that the entire bat is a game bat. To provide a hard-to-break practice bat which enables the practice of batting with the same feeling as a game bat by having the same weight and length as a bat. To appropriately adjust the thickness and length of each part of a tip part, a hitting part and a tapered part, and utilize a material having a density that has not been used so far as a material for a practice bat. [Selection drawing] Fig. 1

Description

The present invention relates to practice bats used in baseball or softball.

Many practice bats have been devised, but they are different in shape, weight, length, and usability from game bats. In order to improve the batting technique and leave a good result in the game, it is required to continuously practice batting a lot with a bat similar to the bat for the game and in a state similar to the batting motion in the game. Also, there is a demand for a practice bat that is resistant to breakage even when hit.

The solid wood or joint material of wood or bamboo, which is the material of the bat, is a natural product and has variations in density, and it is preferable in terms of manufacturing cost and effective utilization of resources if a high-density and heavy material that is not normally used can be used.

Utility Model Registration No. 3240113 Utility Model Registration No. 3175571 Utility Model Registration No. 3159923

In Patent Document 1, a practice bat that hits a ball with a spherical projection at a specific location on the bat's batting surface is devised. The protrusions have the adverse effect of severely damaging the ball.

In Patent Document 2, a planar auxiliary member is fixed to the ball-hitting portion, but the shape of the bat does not match that of a game bat. In addition, a bat to which a planar auxiliary member is fixed differs from a cylindrical bat, which does not lead to an improvement in the actual hitting technique.

In Patent Document 3, the shape of the golf ball gives a great sense of incongruity, and a strong swing, which is an important element of batting practice, is neglected because the player is preoccupied with hitting the ball with a thin part. If you hit the ball at the end of the thin part or other than the thin part, the bat is likely to be damaged, and many damages occur during continuous batting practice, and there is a fear of injury due to sharp and fine fragments due to its shape.

Solving the situation in which heavy materials with high density that are not suitable for game bats are discarded leads to conservation of resources, but Patent Documents 1, 2, and 3 do not make any ideas from this point of view.

The practice bat of the present invention has a round stick shape, and its length and thickness are almost within the standard values of the Official Baseball Rules 2023, and the diameter of the batting part is almost the same as the standard diameter of the game bat, so that the batting practice can be done with the same feeling as the game bat, thus solving the problems of [0005] and [0006].

In the practice bat of the present invention, the thickness of the tapered portion from the grip portion to the ball-hitting portion is made thicker than the standard diameter of the game bat in order to make it difficult to break even when receiving the impact of hitting, and conversely, the tip portion from the tip to the ball-hitting portion is made thinner than the standard diameter, so that the weight is kept within the standard weight of the game bat. This solves the problem of item [0007].

By taking the above-mentioned measures [0009] and [0010], the batting practice can be performed in a state similar to standing at the bat, so that the batting technique can be learned quickly. Breakage of practice bats and resulting injuries due to impact impact are also reduced. High-density and heavy materials that have not been used until now can be used, which reduces the manufacturing cost of practice bats and leads to effective utilization of resources.

1] is a front view showing the practice bat of the present invention. [FIG. Since the practice bat has a cylindrical shape, the rear view, top view, and bottom view are the same and are omitted. It is the left side view seen from the tip part.

The diameter of the ball-hitting part of the practice bat of the invention is the same as that of the game bat, the tip part is thinner than that of the ball-hitting part, and the tapered part is thicker than that of the game bat, but the bat is almost circular and has a shape that gives the same usability as that of the game bat. The tapered portion is thickened to prevent the bat from breaking even when hit. As a result, although the present invention is a practice bat, batting practice can be performed with the same feel as a game bat, and damage to the bat can be reduced.

As shown in FIG. 1, the overall shape is similar to that of a game bat, the length is preferably 845 mm to 855 mm, and the weight is preferably 940 g to 950 g.

B in FIG. 1 is the ball hitting portion, and if the diameter is preferably 61 to 65 mm, the practice bat of the present invention can be used for batting practice without any sense of incongruity with the game bat, so that the technique of hitting the ball at a point near the sweet spot C with a powerful swing can be learned in a shorter time than other practice bats.

A in FIG. 1 is a tapered portion, which is 5 mm to 7 mm thicker than the standard diameter of a game bat. The portions 180 mm and 350 mm from the grip end are likely to break due to impact, and the diameters of these portions are preferably 28 mm to 32 mm and 30 to 34 mm, respectively. This makes it difficult for the bat to break even if it receives the impact of a blow.

The diameter of the tip portion of D is preferably 51 mm to 55 mm, which is 5 to 7 mm thinner than the standard diameter of a game bat, so that the overall weight is preferably 940 g to 990 g, which is the same weight as a game bat.

A Tapered portion B Hitting portion C Sweet spot D Tip portion E Grip end F Line representing the circumference of the hitting portion G Line representing the circumference of the tip

Claims (3)

The practice bat used in practice of baseball or softball has an overall shape similar to that of a game bat, a length of 840 mm to 860 mm, a weight of 915 g to 1015 g, a head tip diameter of 48 mm to 58 mm, and a grip end diameter of 50 mm to 60 mm. 2. The practice bat according to claim 1, wherein the ball-hitting portion has a width of 50 mm to 70 mm in the longitudinal direction centered on a point 155 mm from the tip, and a diameter of that portion is 58 mm to 68 mm. The practice bat according to claim 1, wherein the portion extending from the grip end to the ball-hitting portion is tapered in the same manner as a game bat, and the diameter of the portion 180 mm from the grip end is 25 mm to 35 mm, and the diameter of the portion 350 mm from the grip end is 26 mm to 36 mm.

Images