JP2015110056A - Baseball helmet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a baseball helmet in which root parts of liner ear parts are reinforced by a reinforcement shell to enhance the breaking strength of the liner, and which can prevent damage to the liner due to being worn repeatedly.SOLUTION: Liners 2 are formed by integrally connecting liner bodies 20 arranged inside a body part 10 that cover the top of the head, and ear parts 22 arranged inside ear flaps 12 that cover the ears. Inner shells 3 are laminated inside the liners 2, which do not cover most of the liner bodies 20, and are formed of non-foam resin thinner than the liners 2 over the ear parts 22 of the liners 2 to the liner bodies 20.

Description

  The present invention relates to a baseball helmet provided with a buttocks and ear flaps.

  A baseball helmet for batters is provided with an ear flap (Patent Document 1).

An example of a general baseball helmet is shown in FIG. In FIG. 11, the baseball helmet includes an outer shell 1, a liner 2, a head pad 4 and an ear pad 5.

The outer shell 1 has a hemispherical main body 10 that covers the upper part of the head, a flange 11 that protrudes forward F from the main body 10, and a downward protrusion from the main body 10 to cover the ear. At least one ear flap 12 is integrally formed of a non-foamed resin. The liner 2 is laminated on the inner side of the main body 10 of the outer shell 1 and is made of a foamed resin that is thicker than the outer shell 1, and is not provided on the flange portion 11 and the ear flap 12.

Japanese Patent No. 2,978,755 (FIG. 4)

  In the general baseball helmet shown in FIG. 11, the liner 2 is not provided at the part of the heel part 11 and the ear flap 12. For this reason, the outer shell 1 itself needs to have a high strength, and the outer shell 1 is formed of a thick resin of about 2 mm. Such a thick outer shell 1 becomes a factor that increases the weight of the baseball helmet.

  Accordingly, an object of the present invention is to reduce the weight of the helmet by thinning the outer shell.

In order to achieve the above object, a baseball helmet according to the present invention includes a hemispherical main body 10 that covers the upper part of the head, a collar 11 that protrudes from the main body 10 toward the front F, and the main body. An outer shell 1 that protrudes downward from 10 and covers the ear is laminated with an outer shell 1 made of a non-foamed thin resin, and is laminated on the inner side of the outer shell 1 and is thicker than the outer shell 1. A helmet for baseball provided with a liner 2 made of a foamed resin of meat, wherein the liner 2 is disposed inside the main body 10 and covers the upper portion of the head, and the inner side of the ear flap 12 An ear portion 22 that covers the ear and a front projecting portion 21 that is disposed along the lower surface of the flange portion 11 and projects from the liner body 20 toward the front F are integrally connected to each other. A reinforcing shell 3 made of a non-foamed resin that is thinner than the liner 2 and does not cover most of the liner body 20 is laminated on the liner 2 in at least one of the following conditions a or b. A baseball helmet a. Laminated on the inner side of the liner 2 from the ear portion 22 of the liner 2 to the liner body 20;
b. The liner 2 is laminated on the inner side and / or the end surface of the liner 2 from the front end 22e of the liner ear 22 to the constricted constriction 23 between the ear 22 and the front protrusion 21.

Here, the upper part of the head means a part above the ear in the head.
The outer shell may be divided into two or more. For example, the outer shell may be divided into three and the ear flap and the reinforcing shell may be integrated.
“Not covering most of the liner body” means that the inner shell does not cover more than half of the top of the head.

  According to the present invention, since the liner is also provided on the inner side of the ear flap, the outer shell can be thinned and the weight of the helmet can be reduced. In addition, the reinforcing shell does not cover most of the upper part of the head, and does not hinder the weight reduction of the helmet.

On the other hand, there is a through hole in the batter helmet's ear flap, but the hard baseball batter's helmet is equipped with both ears, so it is difficult to put on and take off. To do. At that time, stress concentrates on the ear flap root, and there is a possibility that the liner material provided up to the ear flap may crack.
Further, even in a soft baseball helmet with one ear, the ear flap portion may be grasped and attached with one hand, and in this case, the liner material may be cracked.
In contrast, the a. When the base part of the ear part of the liner is reinforced by the reinforcing shell as in the state of (2), the breaking strength of the base part of the ear part of the ear flap is increased, and damage to the liner due to repeated wearing can be prevented.
On the other hand, said b. When a reinforcing shell is laminated on at least one of the inner side or the end surface of the liner from the front end of the ear portion of the liner to the constricted portion, the constricted portion where stress concentration is likely to occur is reinforced. The liner can be prevented from being damaged.

It is the perspective view which looked at the helmet of Example 1 of the present invention from the inner front. It is the perspective view seen from the same inner back. It is the perspective view which looked at the helmet of Example 2 from inner back. It is the perspective view which looked at the helmet of Example 3 from inner back. FIG. 5A is a cross-sectional view of the liner, and FIGS. 5B to 5D are cross-sectional views showing a structural example of the lower end of the ear flap. 6A to 6F are cross-sectional views showing other examples of the structural example. It is the perspective view which looked at the helmet of Example 4 from the inner front. It is the perspective view which looked at the helmet of Example 5 from the inner front. It is the perspective view which looked at the helmet of Example 6 from the inner front. It is the perspective view which looked at the helmet of Example 7 from the inner front. It is a perspective view showing an example of a general baseball helmet.

  In a preferred embodiment of the present invention, a thin portion having a thin liner is formed by constricting an inner surface of the liner at a portion connected to the liner main body at the front end of the ear portion, and the thin thin portion is formed. The reinforcing shell is laminated on the inside and / or end face of the front end of the part.

  In this case, the vine of the glasses can be accommodated inside the thin portion, but the thin front end of the thin portion is reinforced by the reinforcing shell, so that concentration of stress can be prevented.

In a further preferred embodiment of the present invention, a plurality of grooves extending upward from the end surface of the liner body are formed in the front and rear heads of the liner body.
In this case, when the helmet is worn, the liner main body opens at the groove portion, and the stress concentration at the base of the ear can be alleviated.

In a further preferred embodiment of the present invention, the groove has a V-shaped or U-shaped planar cross section at the front and back heads.
V-shaped or U-shaped grooves make the liner body easier to open.

  In a preferred embodiment of the present invention, the helmet further includes a pad for fitting at least a temporal region of the head, and the inner shell extends to a position above the lower end of the pad.

  Such an inner shell reliably covers the base of the ear and can reliably prevent damage to the liner due to repeated wear.

Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, the same or corresponding parts are denoted by the same reference numerals.

1 and 2 show Example 1. FIG.
In the outer shell 1 of this embodiment, as in the conventional example of FIG. 11, the main body portion 10, the flange portion 11 and the ear flap 12 of FIG. 1 are integrally molded with a non-foamed thermoplastic resin. Unlike the conventional example, it is thin with a thickness of about 0.4 mm to 1.5 mm and is formed by vacuum molding.

  The liner 2 is integrally formed of a foamed polystyrene (an example of a foamed resin) in which the liner main body 20, the front protruding portion 21, and the ear portion 22 are thicker than the outer shell 1.

The liner 2 is for absorbing impacts, but covers the entire inner surface of the outer shell 1 and also plays a role of increasing the strength of the helmet in cooperation with the outer shell 1.
The liner main body 20 is disposed inside the main body 10 and covers the top of the head. The ear portion 22 is disposed inside the ear flap 12 and covers the ear. The front protrusion 21 is disposed along the lower surface of the flange 11 and protrudes from the liner body 20 toward the front F.

  An inner shell 3 (an example of a reinforcing shell) is laminated on the liner 2 inside the liner 2. The inner shell 3 does not cover most of the liner body 20, and is formed of a non-foamed thermoplastic resin that is thinner than the liner 2 from the ear portion 22 of the liner 2 to the liner body 20. . The inner shell 3 mainly covers the inner side of the liner 2, but may cover the end surface E of the liner 2.

  In addition, in each figure of FIGS. 1-4 and FIGS. 7-10, the halftone dot is given to the site | part of the inner shell 3. FIG. In these drawings, the top and bottom of the helmet are shown upside down for the convenience of drawing.

  For example, the outer shell 1 and the inner shell 3 and the liner 2 shown in FIG. 1 are integrally fixed to each other when the liner 2 is molded. After the outer shell 1 and the inner shell 3 are respectively formed by vacuum molding, the outer shell 1 and the inner shell 3 are charged into the mold at the time of in-mold molding of the liner 2, and simultaneously with the molding of the liner 2, the outer shell 1 and the outer shell 1 and The inner shell 3 may be adhered. On the other hand, the inner shell 3 may be a single vacuum-formed part fixed to the liner 2 by a plurality of fasteners 6 such as screws.

  This helmet is provided with an annular head pad 4 and ear pad 5 shown in the conventional example of FIG. The head pad 4 fits the helmet along the outer periphery of the head, and the ear pad 5 contacts the face below the ear, and these are generally made of sponge rubber and synthetic leather. 1 to 4 and FIGS. 7 to 10, the head pad 4 and the ear pad 5 are not shown for easy understanding of the structure of the liner 2 and the inner shell 3.

  In FIG. 1, the inner shell 3 extends to the upper side (lower side on the paper surface) Z from the lower end 40 (see FIG. 11) of the head pad 4. In this way, the inner shell 3 extends upward Z and covers a part of the liner main body 20, so that the inner shell 3 reliably covers the base portion of the ear portion 22.

  The outer shell 1, the liner 2 and the inner shell 3 have a through hole 7 in the ear portion. In the case of the present embodiment, the inner shell 3 is provided continuously over the entire periphery of the through hole 7 so as to surround the periphery of the through hole 7.

In the present embodiment, the inner shell 3 extends from the lower end of the ear portion 22 toward the outer side of the helmet, and covers the end surface E of the ear portion 22.
In addition, by covering the end surface E with a non-foamed resin, it is possible to prevent wear due to contact or contact of the liner material of the end surface E with a ground or the like.

  As shown in FIGS. 1 and 2, a plurality of grooves 20G extending from the end surface 20E of the liner body 20 toward the upper side Z are formed on the inner surface of the liner body 20 from the front head 20F to the back head 20B. Yes. The groove 20G has a V-shaped or U-shaped planar cross section at the front head 20F and the back head 20B.

  As shown in FIG. 1, the head of the helmet is provided with a large number of ventilation through holes 8 that penetrate the outer shell 1 and the liner 2 and continue to the groove 20G.

3 and 4 show another embodiment.
As shown in these examples, the inner shell 3 may have various shapes, but preferably surrounds the entire periphery of the through hole 7.

5B to 5D and FIGS. 6A to 6F show the structure of the lower end portion of the ear portion 22 in FIG. 5A in an enlarged manner.
The end surface E of the liner 2 may be covered by the inner shell 3 as shown in FIG. 5B, but may not be covered by the inner and outer shells 3 as shown in FIGS. 5C and 5D.

  6A, the outer shell 1 may be extended to the inside so as to wind the end surface E, and conversely, the inner shell 3 may be extended to the outside so as to wind the end surface E as shown in FIG. 6B. Good.

  Furthermore, as shown in FIGS. 6C and 6F, the end face E may be covered with another part. Further, as shown in FIGS. 6D and 6E, various structures can be adopted for processing the ends of the outer shell 1 and the inner shell 3.

  As shown in the cross-sectional view of FIG. 5A and FIGS. A thin-walled portion 24 is formed. This is to make it possible to accommodate the vine of the batter wearing the glasses.

  Further, a constricted portion 23 is formed between the ear portion 22 and the projecting portion 21 and the shape is abruptly changed. Therefore, stress tends to concentrate on the constricted portion 23 or the thin portion 24 in the vicinity thereof. On the other hand, the rear end portion 22b of the ear flap 12 has a smooth shape toward the main body 10 and is not easily broken.

Therefore, as shown in FIGS. 7 to 10, it is preferable to provide a reinforcing shell 3 in order to reinforce at least the portion where stress is easily concentrated.

  In the embodiment of FIG. 7, the reinforcing shell 3 is laminated on the inside of the liner 2 from the front end 22 e to the constricted portion 23 of the ear portion 22 of the liner from the ear portion 22 to the liner body 20.

  In the embodiment of FIG. 8, the reinforcing shell 3 is laminated on the inner surface and the end surface of the liner 2 from the end surface E of the ear portion 22 and the inner side in the vicinity thereof and from the front end 22 e of the ear portion 20 to the constricted portion 23.

In the embodiment of FIG. 9, the reinforcing shell 3 is laminated on the inner side and / or the end surface of the liner 2 from the front end 22 e of the ear portion 22 of the liner to the constricted portion 23.

  In the embodiment of FIG. 10, the reinforcing shell 3 is laminated from the end surface of the liner 2 to the edge of the front projecting portion 21 from the front end 22 e of the liner ear portion 22 to the constricted portion 23.

  The present invention can be applied not only to hard baseball but also to soft baseball helmets.

1: Outer shell 10: Main body part 11: Eaves part 12: Ear flap 2: Liner 20: Liner main body 21: Front projecting part 22: Ear part 22e: Front end 20B: Rear head 20E: End face 20F: Front head 20G: Groove
3: Inner shell (reinforced shell)
4: Head pad 40: Lower end 5: Ear pad 6: Stopper 7: Through hole 8: Through hole E: End face F: Front Z: Up

Claims (5)

A hemispherical main body 10 that covers the upper part of the head, a flange 11 that protrudes forward F from the main body 10, and at least one ear flap 12 that protrudes downward from the main body 10 and covers the ear. An outer shell 1 formed of a non-foamed thin resin;
A baseball helmet provided with a liner 2 made of foamed resin thicker than the outer shell 1 and laminated inside the outer shell 1;
The liner 2 is arranged along the lower surface of the liner main body 20 that is arranged inside the main body 10 and covers the upper part of the head, the ear 22 that is arranged inside the ear flap 12 and covers the ears, and the flange 11. And a front projecting portion 21 projecting from the liner body 20 toward the front F is integrally formed with each other,
A reinforcing shell 3 made of a non-foamed resin that is thinner than the liner 2 and does not cover most of the liner main body 20 is laminated on the liner 2 in at least one of the following states a or b. A baseball helmet a. Laminated on the inner side of the liner 2 from the ear portion 22 of the liner 2 to the liner body 20;
b. The liner 2 is laminated on the inner side and / or the end surface of the liner 2 from the front end 22e of the liner ear 22 to the constricted constriction 23 between the ear 22 and the front protrusion 21.   In Claim 1, in the part which continues to liner body 20 in said front end 22e of said ear part 22, the inner side surface of said liner 2 is bundled, and thin part 24 with a thin thickness of said liner 2 is formed, A baseball helmet in which the reinforcing shell 3 is laminated on the inside and / or end surface of the front end 22e of the thin thin portion 24.   The baseball helmet according to claim 2, wherein a plurality of grooves 20G extending upward from an end surface 20E of the liner body 20 are formed in the front head 20F and the back head 20B of the liner body 20, respectively.   4. The baseball helmet according to claim 3, wherein the groove 20 </ b> G has a V-shaped or U-shaped planar cross section at the front head 20 </ b> F and the back head 20 </ b> B. In Claim 1, further comprising a head pad 4 for fitting the helmet to at least the temporal region of the head,
The reinforcing shell 3 is a baseball helmet that extends above the lower end of the head pad 4.