JPH11222709A - Helmet and attached body for helmet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a helmet capable of readily and precisely attached to a head part, and having a light weight. SOLUTION: This helmet has plural air bags 34, 34... at the positions facing to a ring-like head band 24 along the inner periphery wall of a cap body 30. The air bag 34 is capable of being expanded and shrunk so that the air bag 34 may act a size-regulating function of the head band, and composed of a flexible synthetic resin such as a polyethylene, a polypropylene, a polyester, a polyamide and a vinyl chloride. The left half from the two-dot chain line shows the shrunk state of the air bags 34, and the right half of the two-dot chain line shows the expanded state of the air bags 34. The expansion and shrinkage of the air bags 34 are carried out by a small, light and manual air pump 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet and a helmet wearing body worn for protecting a head in construction work, civil engineering work and all other works.

[0002]

2. Description of the Related Art FIG. 9 is a perspective view showing a wearing body 20 as a main part of a helmet 10 as a conventional example.
Is a cross-shaped hammock 22 and an annular headband 2
4 and a chin strap 26. Also, reference numeral 30
Is a cap body, and a liner 32 for absorbing shock is provided inside the cap body.
Are tightly fixed, and the cap body 30 has the brackets 28, 2
The helmet 10 is configured by attaching the wearing body 20 through the helmet 8.

[0003] A headband 24 constituting the wearing body 20
It is necessary to adjust the perimeter of the headband 24 in order to adjust its size to the size of the wearer's head.
In this conventional example, a number of small projections 25 are provided at equal intervals near one end of a headband 24,
A number of small holes that engage with the small protrusions are formed near the other end in the length direction of the headband 24, and the perimeter can be adjusted by appropriately locking them.

However, the small projections 25, 25...
Since the size of the small hole is small, the work of attaching and detaching the headband 24 is not easy, and particularly, the work of adjusting the occipital region with the helmet 10 attached is extremely difficult.
Also, in this type of wearing body 20, the headband 24
It has been pointed out that when a large tensile force acts on the small projection 25, the engagement between the small projection 25 and the small hole is easily released.

On the other hand, if it is only necessary to adjust the circumference of the headband, a size adjustment band employing a pinion rack type (Japanese Patent Laid-Open No. 8-27613) or a worm screw mechanism is incorporated in the headband. Helmet wears that allow fine adjustment are also known. However, the adjustment mechanism in these helmet wears has the disadvantage that the structure is complicated and, as a result, the weight of the wear is increased.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a helmet and a helmet wearing body which can be easily and reliably mounted on a head and which is lightweight.

[0007]

A helmet according to the present invention comprises:
An inflatable and deflated air bag is provided between the cap body and the elastic annular headband.
Further, the helmet wearing body of the present invention is characterized in that it is provided with an inflatable / contractible air bag in contact with the inside of the annular headband.

It is preferable that the helmet and the helmet wearing body include an air pump for inflating and deflating the air bag.

[0009]

After the helmet is put on the head, an air pump or the like is operated to supply air to the air bag, and the air bag is inflated and presses the head band in the centripetal direction. Reduces the perimeter. Alternatively, the area inside the headband is reduced due to the inward expansion of the air bag. In this way, the headband can be adapted to the size of the wearer's head. On the other hand, when the headband is loosened, the exhaust valve provided in the air pump or the like may be opened, whereby the air in the airbag escapes and the airbag shrinks.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a helmet and a helmet wearing body according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a helmet 1 provided with a wearing body 20.
FIG. 10 is a bottom view of FIG. 9, and the wearing body 20 includes a cross-shaped hammock 22, an annular headband 24, and a chin strap 26, similarly to the conventional example shown in FIG. 9. Also,
Reference numeral 30 denotes a rigid cap body, and reference numeral 28 denotes a bracket for attaching the wearing body 20 to the cap body 30.

FIG. 2 is a bottom view of the helmet 10 showing a characteristic portion of the present invention, omitting the illustration of the hammock 22 and the chin strap 26.
A plurality of air bladders 34, 34,... Are attached at positions facing the annular headband 24.

The air bladder 34 needs to be inflatable and contractible in order to operate a headband adjusting function which will be described later. However, the size and shape of the air bag 34 are not particularly limited. , Shapes. Therefore, in the embodiment shown in FIG. 2, the air bladder 34 is spherical, but it may be rod-shaped (FIG. 3) or cylindrical (FIG. 4), or one or more rings along the headband 24. . In addition, as a material forming the air bag 34, polyethylene, polypropylene, polyester, polyamide, vinyl chloride, and other synthetic resins having flexibility are preferable.

In FIG. 2, the left half of the two-dot chain line shows a state where the air bladder 34 is contracted, and the right half of the two dotted chain line shows a state where the air bladder 34 is inflated. Body 3
It is preferable to inflate and contract with a small and light hand-operated air pump 36 that is small enough to fit in the gap between the headband 24 and the headband 24. Further, it is desirable that the air pump 36 has an exhaust valve.

In this embodiment, the headband 24 needs to have elasticity in the length direction. Thus,
The headband 24 may be made of polyethylene or other flexible synthetic resin, or may be made of an elastic material such as rubber.

In the embodiment of the headband 24 shown in FIG. 5, a loop 4 is attached to one end of a band 40 made of polyethylene.
0a, a narrowed portion 40b of a predetermined length is formed near the other end, and a locking portion 4 formed on the other end is formed.
By engaging 0c with the loop 40a, an annular headband 24 having elasticity is formed. The predetermined length is a length necessary for expanding and contracting the headband 24. The width of the locking portion 40c is the same as the width of the throttle portion 40.
It is only necessary that the width be relatively large with respect to b.

As the structure of the headband 24, in addition to the above-described embodiment, a structure in which a part of the headband 24 is formed in a bellows shape so as to have a stretching force in the circumferential direction can be cited. .

In the helmet 10 shown in FIG. 2, after putting on the head, the air pump 36 is operated to supply air to the air bladders 34, 34,.
... expands and presses the headband 24 in the centripetal direction, so that the stretchable headband 24 shortens the perimeter. As a result, the headband 24 can be adapted to the size of the wearer's head.

On the other hand, when loosening the headband 24, the exhaust valve of the air pump 36 may be opened. By this operation, the air in the air bladders 34, 34,... Is released, and the air bladders 34, 34,.

As can be seen from the operation of expanding and contracting the headband 24, the air bladders 34, 34,... Do not necessarily need to be provided over the entire circumference of the headband 24, but may be provided at a part thereof. In that case, it is particularly preferable to provide it on the back of the head from the viewpoint of wearing feeling.

As shown in FIG. 9, in the case of the helmet 10 in which a liner 32 made of a foamed resin such as expanded polystyrene is mounted inside the cap body 30, an air bag 34 is provided between the liner 32 and the headband 24. May be provided, whereby the same operation and effect as described above can be obtained.

According to the helmet 10, the head of the wearer is in contact with the headband 24 via the air bag 34, so that the impact force applied to the cap 30 is dispersed by the cap 30, and After the relaxation, the impact force transmitted to the head is greatly reduced because it is further absorbed by the air bladder 34.

Next, another embodiment of the helmet wearing body according to the present invention will be described with reference to FIG. FIG. 6 is a plan view of the headband 24. The headband 24 has a normal structure and shape that does not have elasticity, and includes an air bag 34 that can inflate and contract in contact with the inside of the headband 24. This is different from the wearing body 20 shown in FIG.

In this embodiment, the air bag 34 is provided at the back of the headband 24 (the right half of the two-dot chain line), and the forehead (the left half of the two dot chain line) is connected to the air pump 36. A bubble sheet 38 that has not been used is stuck. As shown in FIG. 7, the bubble sheet 38 is formed by regularly forming a large number of cylindrical small bubbles 38b on the surface of a resin sheet 38a. It is bonded and integrated by a method such as heat sealing.

As for the size, shape, arrangement and material of the air bladder 34, the explanations in the embodiment shown in FIG. 2 can be similarly applied.

As with the helmet 10 shown in FIG. 2, the wearing body 20 shown in FIG. 6 operates the air pump 36 to supply air to the air bag 34, so that the air bag 34 expands inward. Thus, the area inside the headband 24 is reduced. As a result, the headband 24 can be adapted to the size of the wearer's head. Also, the headband 24
Is loosened, the exhaust valve of the air pump 36 may be opened.

In the wearing body 20, since the back of the head contacts the flexible air bag 34, no discomfort is caused to the wearer. However, from the viewpoint of protection and safety of the air bag 34, the air bag 34 and the bubble sheet 38 may be covered with a suitable interior material. As in the embodiment shown in FIG. 2, it is optional to provide a belt-like material having elasticity inside the air bag 34, for example, a band having the shape shown in FIG.

When the base material layer of the foam sheet 38 shown in FIG. 7 is a foamed polystyrene sheet, the stiffness of the sheet can be strengthened and, at the same time, the role of a liner having a high shock absorbing ability can be imparted. .

FIG. 8 is a plan view showing a modification of another helmet wearing body according to the present invention. In this embodiment as well, only the main parts are shown as in the embodiment shown in FIG. 6, but in this embodiment, the size adjustment of the headband 24 is performed by the cylinder mechanism 42. 8, both ends of the headband 24 are connected to an outer cylinder 42a and an inner rod 42b, respectively, which constitute the cylinder mechanism 42.
2a, an air bladder 34 is provided inside the air bladder 3a.
4 is connected to the air pump 36.

Accordingly, similarly to the above-described embodiment, the headband 2 is controlled by controlling the amount of air in the air bag 34.
4 can be adapted to the size of the wearer's head.

[0031]

According to the helmet according to the first aspect and the helmet wearing body according to the third aspect, the adjustment of the headband is extremely easy, and the helmet is easily attached / detached and easy to use. Further, the air bag also has a function of absorbing impact from the outside of the cap body. Furthermore, the feeling of wearing is soft and comfortable, and the use of such a protective cap is expected to greatly improve work efficiency.

A helmet according to claim 2 and a helmet according to claim 4
According to the helmet wearing body described above, since the air bag can be easily inflated and deflated, the mounting work on the head becomes easier and more reliable.

[Brief description of the drawings]

FIG. 1 is a bottom view of a helmet provided with a wearing body 20. FIG.

FIG. 2 is a bottom view showing a main part of the helmet according to the present invention.

FIG. 3 is a perspective view showing a modification of the air bag 34.

FIG. 4 is a perspective view showing a modification of the air bag 34.

FIG. 5 is a partial perspective view of the headband 24.

FIG. 6 is a plan view of a main part of the helmet wearing body according to the present invention.

FIG. 7 is a perspective view of a bubble sheet adhered to the helmet wearing body.

FIG. 8 is a plan view of a main part of another helmet wearing body according to the present invention.

FIG. 9 is a perspective view showing a main part of a helmet as a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Helmet 20 Wearing body 24 Headband 30 Cap body 34 Air bag 36 Air pump 38 Bubble sheet 40 Band piece 42 Cylinder mechanism

Claims (4)

[Claims] 1. A helmet comprising an inflatable and deflated air bag between a cap body and an elastic annular headband. 2. The helmet according to claim 1, further comprising an air pump for inflating and deflating the air bag. 3. A helmet wearing body comprising an inflatable and deflated air bag in contact with an inner portion of an annular headband. 4. The helmet wearing body according to claim 3, further comprising an air pump for inflating and deflating the air bag.