JP2000265315A - Helmet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a helmet not causing reduction in strength of helmet, penetration of rainwater, dust, a falling object such as nail, etc., into the helmet, capable of preventing the head from getting stuffy. SOLUTION: A reinforcing body 4 is fixed to the outside of a helmet main body 1 and an intermediate chamber 5 is arranged between the inside of the reinforcing body 4 and the outside of the helmet main body 1. The reinforcing body 4 is provided with a first communicating hole 6 for making the outside of the reinforcing body 4 communicate with the intermediate chamber 5. The helmet main body 1 is equipped with a second communicating hole 7 for making the intermediate chamber 5 communicate with the inside of the helmet main body 1. Rainwater, dust, a falling object such as nail penetrated from the first communicating hole 6 are received in the intermediate chamber so that the direct penetration of rainwater, etc., into the helmet main body is suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet mainly used at a construction site.

[0002]

2. Description of the Related Art Generally, at construction sites, workers are required to wear a helmet to protect their heads.

As is well known, a helmet used at a work site or the like is provided with a cap-shaped helmet body for protecting the entire head, and a head holding belt attached to an inner surface of the helmet body. The main body is formed from a plastic resin material.

When the worker wears the above helmet, the head of the worker is fitted into the head holding belt, and an impact is applied to the helmet body between the worker's head and the inner surface of the helmet body. A shock absorbing space is defined so that the head does not hit the inner surface of the helmet body when added.

[0005]

By the way, in the conventional helmet, the temperature inside the helmet body tends to rise because the air flow inside the helmet body is poor during use.

[0006] Therefore, particularly when used under the scorching sun, there is a problem that the inside of the helmet becomes hot and accumulates hot air, so that the head becomes stuffy and the operator feels uncomfortable.

To solve the above problem, a helmet in which a ventilation hole is formed in the helmet body to release heat inside the helmet to the outside has been proposed. When this is formed, the strength of the helmet itself is reduced, and there is a problem that rainwater or the like inadvertently enters through the ventilation holes.

The present invention has been developed in view of the above circumstances, and an object thereof is to reduce the strength of a helmet and prevent rainwater, dust, or falling objects such as nails from entering the helmet. Another object of the present invention is to provide a helmet that can prevent the head from getting stuffy.

[0009]

In order to achieve the above object, according to the first aspect of the present invention, a reinforcing member is fixed to an outer surface of a helmet main body and an inner surface of the reinforcing member and an outer surface of the helmet main body are fixed to each other. While the intermediate chamber is provided between the reinforcing member and the reinforcing member, a first communication hole for communicating the outside of the reinforcing member with the intermediate chamber is provided, and the helmet body is connected to the second communication hole for communicating the intermediate chamber and the inside of the helmet body. The communication hole was provided.

According to a second aspect of the present invention, in the helmet according to the first aspect, an opposing wall is provided in the intermediate chamber at a predetermined interval from the opening of the first communication hole.

According to a third aspect of the present invention, in the helmet according to the first or second aspect, the second communication hole is provided on the top side of the helmet main body, and the second communication hole is formed at an opening edge of the second communication hole on the outer surface of the helmet main body. The ring-shaped rib protruded.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a helmet according to the present invention will be described with reference to the drawings.

The helmet shown in FIG. 1 is mainly used at a construction site, and includes a cap-shaped helmet body 1 for covering the head, a head holding belt 2 attached to the inner side of the helmet body 1, and a helmet. In a state where the worker wears a helmet, the head of the worker is fitted into the head holding belt 2, and a shock absorbing space 3 is defined between the worker's head and the inner surface of the helmet body 1. Thus, when an impact is applied to the helmet body 1, the head is prevented from hitting the inner surface of the helmet body 1.

The helmet body 1 has a collar 10 at the front.
Are formed integrally, and the helmet body 1 is formed of ABS resin.

In the helmet having the above-described structure, the present invention relates to a helmet body 1 in which a reinforcing member 4 formed separately from the helmet body 1 is fixed to the outer surface of the helmet body 1 so that the inner surface of the reinforcing member 4 and the helmet body The intermediate chamber 5 is provided between the first and second outer surfaces.

The reinforcing member 4 shown in the figure comprises an upper wall 41 and a pair of left and right side walls 4 bent downward from both ends in the width direction of the upper wall 41.
2, the reinforcing member 4 is provided from the frontal side to the occipital side of the outer surface of the helmet main body 1 through the vertex and the lower end of the side wall 42. The helmet body 1 is fixed to the helmet body 1 by being adhered to the outer surface of the helmet body 1 with an adhesive.

The reinforcing member 4 is made of ABS resin, like the helmet body 1.

The reinforcing member 4 is provided with a first communication hole 6 for communicating the outside of the reinforcing member 4 with the intermediate chamber 5, while the helmet main body 1 is provided inside the intermediate chamber 5 and the helmet main body 1. Second communication hole 7 communicating with the shock absorbing space 3)
Is provided.

In the embodiment shown in the drawings, a plurality of first communication holes 6 formed of slits are formed at the lower end portions of both side walls 42 of the reinforcing member 4 and the length of the upper wall 41 of the reinforcing member 4 First communication holes 6 formed of slits are also formed at both ends in the direction.

In the embodiment shown in the drawings, a circular second opening opening substantially upward is provided on the top of the helmet body 1.
A plurality of communication holes 7 are provided, and a ring-shaped rib 71 protrudes from an opening edge of the second communication hole 7 on the outer surface of the helmet body 1.

Further, an opposing wall 8 is provided in the intermediate chamber 5 so as to oppose the opening of the first communication hole 6 at a predetermined interval, and in the embodiment shown in FIGS. On the lower surface of the upper wall 41 of the body 4, four opposing walls 8 that can be fitted to the outer peripheral surface of the rib 71 are integrally formed, and when the reinforcing member 4 is assembled to the helmet body 1, the opposing walls 8 Is fitted to the outer peripheral surface of the rib 71, thereby restricting the mounting position of the reinforcing member 4 with respect to the helmet body 1.

In the embodiment shown in the figure, in addition to the four opposing walls 8 which can be fitted on the outer peripheral surface of the rib 71, as shown in FIG. Are integrally formed on the lower surface of the.

As described above, when the reinforcing member 4 is fixed to the helmet main body 1, the fixing position of the reinforcing member 4 to the helmet main body 1 is determined only by fitting the lower end of the opposing wall 8 to the outer peripheral surface of the rib 71. is there.

The helmet having the above-described structure is provided with a reinforcing member 4 at a position where the second communication hole 7 is formed in the helmet body 1.
Since the second communication hole 7 is formed in the helmet main body 1, the strength of the helmet itself is sufficiently secured because the formation portion of the second communication hole 7 is reinforced by the reinforcing member 4. I can do it.

On the other hand, since the inside of the helmet body 1 communicates with the outside through the first communication hole 6, the intermediate chamber 5, and the second communication hole 7, the helmet body 1 can be used even under the hot sun. Circulates, the rise in the temperature inside the helmet body 1 is suppressed, and the worker can work comfortably.

When the above helmet is used, for example, on a rainy day or a windy day, rainwater, dust, or falling objects such as nails may enter the first communication hole 6. Rainwater, dust, falling objects such as nails, etc., which enter from the one communication hole 6 are received by the intermediate chamber 5 and do not directly enter the shock absorbing space 3 in the helmet main body 1, and furthermore, the intermediate chamber 5, opposed walls 8 and 80 facing the opening of the first communication hole 6 are provided, so that rainwater, dust, falling objects such as nails, etc. entering from the first communication hole 6 can The intrusion into the second communication hole 7 is suppressed by being received by the opposing walls 8, 80 and the rib 71.

The rainwater or the like that has entered the intermediate chamber 5 from the first communication hole 6 is discharged to the outside through the first communication holes 6 formed at both ends in the longitudinal direction of the upper wall 41 of the reinforcing member 4.

In the above embodiment, the opposing wall 8 is
・ The helmet body 1 is formed integrally with the facing wall 8
-The 80 may be integrally formed.

In the above embodiment, the lower surface of the upper wall 41 of the reinforcing member 4 is fitted to the lower surface of the rib 71 so as to fit to the outer peripheral surface of the rib 71.
Although the facing wall 8 of the book is integrally formed, the present invention is not limited to this, and may have a structure shown in FIGS. 5 and 6, for example.

That is, in the embodiment shown in FIGS. 5 and 6, a permeable plate member 80 having open cells is formed separately from the helmet body 1 and the reinforcing member 4 from a foamed resin or the like. As shown in FIG. 5 and FIG.
In this configuration, the helmet body 1 may be disposed so as to face the side wall 42 of the reinforcing member 4 and the plate member 80 may be used as the facing wall 8.
It is possible to more reliably prevent rainwater or the like from entering the helmet body 1 while ensuring the air inside to the outside.

In place of the above-described plate member 80, a plate member having a gas permeability formed by, for example, a number of spherical particles adhered to each other may be used.

[0032]

As described above, according to the first aspect of the present invention, the reinforcing member is fixed to the outer surface of the helmet body, and the intermediate chamber is provided between the inner surface of the reinforcing member and the outer surface of the helmet body. A first communication hole communicating the outside of the reinforcement body with the intermediate chamber, and a second communication hole communicating the intermediate chamber with the inside of the helmet body. The formation of the second communication hole in the helmet body is reinforced by the reinforcing member, so that the strength of the helmet itself can be sufficiently ensured, and the inside of the helmet body has the first communication hole, the intermediate chamber and the second communication hole. Since the air in the helmet body circulates through the two communication holes and circulates outside, the worker can work comfortably even when using in hot weather, and yet, from the first communication hole Rainwater and dust invading, Falling objects, etc. etc. accepted in the intermediate chamber is the came to be possible to suppress the entering directly into the helmet body.

According to the second aspect of the present invention, in the helmet according to the first aspect, an opposing wall is provided in the intermediate chamber so as to face the opening of the first communication hole at a predetermined interval. In addition to the effects of the invention described in item 1, the first
The rainwater, dust, falling objects such as nails and the like that enter through the communication hole are received by the opposed wall, and the direct entry into the helmet body can be more reliably suppressed.

According to the third aspect of the present invention, in the helmet according to the first or third aspect, the second communication hole is provided on the top side of the helmet body, and the opening of the second communication hole on the outer surface of the helmet body. By protruding the ring-shaped rib on the edge, in addition to the effect of the invention described in claim 1 or 2, the hot air in the helmet body can be smoothly discharged to the outside, while the hot air in the helmet body can be smoothly discharged from the first communication hole to the intermediate chamber. The ribs can reliably prevent rainwater, dust, falling objects such as nails and the like from entering the helmet main body through the second communication hole.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a helmet according to the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is an enlarged sectional view taken along line XX in FIG. 2;

FIG. 4 is a sectional view taken along line YY in FIG. 3;

FIG. 5 is an enlarged sectional view of a main part showing another embodiment of the helmet according to the present invention.

FIG. 6 is a sectional view taken along line ZZ in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Helmet main body 4 Reinforcement body 5 Intermediate room 6 1st communication hole 7 2nd communication hole 71 Rib 8 Opposing wall

Claims (3)

[Claims] 1. A reinforced body is fixed to an outer surface of a helmet main body, and an intermediate chamber is provided between an inner surface of the helmet main body and an outer surface of the helmet main body. A helmet body provided with a first communication hole that communicates with the helmet body, and a second communication hole that communicates the intermediate chamber with the inside of the helmet body. 2. An opposing wall provided in the intermediate chamber at a predetermined distance from an opening of the first communication hole.
The helmet described. 3. The helmet body according to claim 1, wherein the second communication hole is provided on the top side of the helmet body, and a ring-shaped rib is projected from an opening edge of the second communication hole on the outer surface of the helmet body.
Or the helmet according to 2.