JPH0633145Y2 - Baseball indoor practice air tent - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field to which the Invention belongs) The present invention relates to an air tent for indoor practice of baseball.

(Problems of the invention and its characteristic points) The so-called air tent, which forms a space between the membrane and the air by supporting it with air pressure, has a simple structure and requires a small amount of materials. It is used.

By the way, when using an air tent for indoor practice of baseball, since the air tent is relatively small, the hit ball often hits the film body, and the film body is damaged by the impact of the hit ball, and its airtightness and watertightness are impaired. There is a risk that

The present invention is intended to provide an air tent for baseball indoor practice, which is provided with a simple and effective means for preventing the damage to the film body due to a hit ball, the structural features of which are utility model registration. As described in the claims.

(Description by Drawings) In the drawings showing one embodiment of the present invention, 1 is a foundation made of I-shaped steel which is placed on the ground according to the plane contour of an air tent, 2 is an anchor that prevents the foundation 1 from floating, and 3 is an airtight seal. It is a membrane made of thick canvas cloth that is waterproofed.

Reference numeral 4 denotes a tension-holding tension band that is continuously attached laterally at a position deeper than the hem portion of the film body 3. The tension-force holding tension band 4 is a bent portion of an elongated band cloth 5 folded in two. On rope 6
Each end of the rope 6 is wound to form a locking portion 7, and the slender band cloth 5 is curved upward with the bent portion facing downward, and the upper portion thereof is a film body. 3 is sewn 8 at a position deeper than the hem on the front side, and both ends are fixed with bolts 9 (see FIG. 2).

The upper end of a cover hanging cloth 10 for draining is sewn 11 at a position slightly deeper than the sewing position of the slender band cloth 5, and the front side of the hem portion of the membrane body 3 is covered by the cover hanging cloth 10 over the entire circumference. It is covered (see Figure 3).

12 is a net made of rope for hitting balls, 14 is a membrane 3
Is a fastening cloth welded 13 to a number of locations on the inner surface of the, and 16 is a hanging rope sewn 15 to the fastening cloth 14 at the intermediate portion between the film body 3 and the fastening body 14, and the net 12 is , Is attached to the free end of a hanging rope 16 penetrating the fastening cloth 14 by hanging it, and a bag 18 for a weight is attached to its end (Figs. 1 and 4). , See FIG. 5).

The base 1 is provided with a large number of locking fittings 19, and the locking portions 7 at both ends of the rope 6 of the tension band 4 for holding the tensile force are locked to the corresponding locking fittings 19 so that the hem of the film body 3 is The part is fixed to the foundation 1, and the hem edge of the film body 3 is air-sealed on the ground inside the foundation 1 (see FIG. 3).

Reference numeral 20 denotes a side groove provided around the foundation 1, and the lower end of the covering cloth 10 extends to the side groove 20.

Reference numeral 21 is a blower, and 22 is an inlet / outlet. By sending air to the inside of the film body 3 by the blower 21, the film body 3 expands upward,
A space for practicing baseball is formed between the film body 3 and the ground, and a net 12 suspended by a hanging rope 16 is provided inside the film body 3 with a space provided between the film body 3 and the net 12. Stretched.

(Effect of the Invention) The air tent for indoor practice of the present invention of the present invention is as described above, and a space between the air tent and the film body is provided inside the pneumatically supported film body through a number of hanging ropes. At the end of the day, a net for hitting ball was stretched, so not only does the hitting ball not hit the film directly, but the impact force of the hitting ball received by the net is buffered by the hanging rope and transmitted to the film. Therefore, it is possible to easily and effectively prevent damage to the film body due to a hit ball.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention, FIG. 1 is an overall front view of a partial cutout, FIG. 2 is a front view of a tension band for holding a tension force and a base portion, and FIG. 3 is the same. Sectional drawing, FIG. 4 is a sectional view of the hanging rope attachment portion, and FIG. 5 is a view taken along the line XX of FIG. In the figure, 1: foundation, 2: anchor, 3: film body, 4: tension band for holding tensile force, 5: slender band cloth, 6: rope, 7: locking part, 8: sewing, 9: bolt, 10: Cover cloth, 11: Weld, 1
2: Net, 13: Welding, 14: Fastening cloth, 15: Sewing, 16: Hanging rope, 17: Bondage, 18: Sand bag, 19: Locking fitting, 20:
Gutter, 21: blower, 22: doorway.

Claims (1)

[Scope of utility model registration request] 1. A baseball characterized in that a net for hitting a ball is stretched inside a pneumatically supported film body with a large number of hanging ropes at a distance from the film body. Air tent for indoor practice.