JPH11124719A - Protective headgear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a protective headgear allowing cleaning of the interspace of its double structure. SOLUTION: This protective headgear is so designed that, because the engagement part 13A of its inner layer 10A and that 13B of its outer layer 10B are mutually detachable, the headgear 10 can be cleaned easily and stains adhered to the headgear 10 can be removed entirely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art The inventor of the present application has previously invented a protective cap in which part or all of a cap body has a two-layer structure. As disclosed in International Publication WO97 / 06706, the present invention secures air permeability by forming a gap between an inner layer and an outer layer, and has excellent strength by forming a cap body into a two-layer structure. The purpose of the present invention is to provide a protective cap. Since the protective cap is excellent in air permeability and ventilation, the feeling of wearing is comfortable, and using such a protective cap is expected to greatly improve work efficiency.

However, since the protective cap has a two-layer structure, it is difficult to wipe off dirt between the layers with a cloth or the like. Becomes In addition, although the cap body can be filled with a buffer or a chemical agent between the layers using a two-layer structure, the replacement work is inconvenient because the inner and outer layers are integrated by ultrasonic welding or other joining methods. is there.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a protective cap in which part or all of the cap is double-structured so that the cap including a gap between the caps can be completely cleaned. It is intended to provide a cap. Another object of the present invention is to provide a protective cap capable of easily replacing a buffer material, a chemical agent, and the like.

[0005]

The protective cap according to the present invention is characterized in that a part or the whole of the cap body has a two-layer structure of at least two detachable members.

It is preferable to form air holes which do not overlap each other in both of the two members constituting the two-layer structure. Preferably, a buffer or a chemical agent is sandwiched between the two layers.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode of a protective cap according to the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an inner layer 10A and an outer layer 10B of the cap body 10 which are vertically separated from each other. The cap body 10 constitutes a main body of a protective cap. In this figure, a so-called wearing body or a shock absorbing liner, which is usually provided as a protective cap and is attached to the inside of the cap body 10 to alleviate the impact applied to the cap body 10 and a so-called wearing body, Are not shown.

The material of the cap body 10 is polyester,
Polypropylene, polyethylene, polycarbonate, A
A synthetic resin such as a BS resin can be used. Also,
When emphasis is placed on strength, iron, steel, aluminum, aluminum alloys, and other high-strength alloys can be used, and depending on the application in which the protective cap is used, it may be made of fiber-reinforced plastic or ceramic.

A step portion 11 is formed in the middle of the outer surface of the inner layer 10A in the circumferential direction, and the upper portion of the step portion 11 is slightly smaller in diameter than the lower portion, and when the outer layer 10B is applied to the inner layer 10A,
A gap 12 to be described later is formed between the two layers, and the lower edge of the outer layer 10 </ b> B abuts the step portion 11.

On the outer surface of the inner layer 10A located above the step portion 11, a plurality of concave portions 17 and convex portions 18 are formed alternately. The concave portion 17 serves as a flow path for rainwater, as described later, and may be relatively concave with respect to the convex portion 18. In addition to forming a concave curved surface or a convex curved surface as in the present embodiment, U It may be a ridge or a ridge having a V-shaped or V-shaped cross section.

An air hole 20A is formed at an appropriate position of the convex portion 18. The air holes 20A are for allowing the outside air to flow, and there is no particular limitation on the shape and the drilling position of the air holes 20A, but the number is preferably several to several tens in the entire inner layer 10A.

The curvature of the outer layer 10B is made slightly smaller than the curvature of the inner layer 10A so that the inner layer 10A can be covered with the outer layer 10B. Also, a plurality of air holes 20B are provided in the outer layer 10B, and the air holes 20B are formed so as not to coincide with the air holes 20A when the inner and outer layers 10A and 10B are overlapped.

Reference numeral 13A denotes an engaging portion provided on the step portion 11 on the outer wall surface of the inner layer 10A.
At the corresponding lower edge position on the inner wall surface of B, an engaging portion 13B that is engaged with the engaging portion 13A is provided. The engaging portions 13A and 13B can adopt a fitting form of an arbitrary shape and structure other than the uneven structure. Engaging portion 13A, 1
There is no particular limitation on the number of 3Bs to be installed.

The inner and outer layers 10A and 10B are engaged with the engaging portions 13A and 1
3B, the inner and outer layers 1
By separating 0A and 10B, cleaning of the cap body 10 becomes easy, and dirt attached to the cap body 10 can be completely removed.

FIG. 2 is a vertical sectional side view of the hat body 10 which is formed by covering the outer layer 10B from the inner layer 10A shown in FIG. 1 and integrally forming the same. A gap 12 is formed between the inner layer 10A and the outer layer 10B. . In the present embodiment, since the inside of the inner layer 10A and the outside of the outer layer 10B communicate with each other through the vent hole 20A, the gap 12, and the vent hole 20B, the outside air flows between the inside and the outside of the cap body 10. Since the gap 12 first functions as an air flow passage, a space through which air can flow may be secured. Therefore, the thickness of the gap 12 is 1
It is preferably about 20 mm, particularly about 3 mm to 10 mm.

In the cap body 10 of the present invention, the gap 12 has a shape and a method which do not hinder ventilation, ventilation, and drainage of rainwater, so that a cushioning material such as styrene foam or various sponges, a deodorant, etc. Chemical agents such as antimicrobial agents, phytontides, and other fragrances can be deployed. When it becomes necessary to replace these buffer materials and chemical agents, the inner and outer layers 10A and 10B can be easily replaced because they are removable.

Next, another embodiment of the protective cap according to the present invention will be described with reference to FIG. FIG. 3 is a side view showing the cap body 10 separated into an inner layer 10A and an outer layer 10B. The same members as those in FIG. 1 are denoted by the same reference numerals as in FIG. In the present embodiment, the concave portion 17 and the convex portion 18 are a concave line and a convex line, respectively, extending radially from the top of the inner layer 10A to the step portion 11.

The upper portion of the inner layer 10A is substantially hemispherical, and the step 11 is formed at a portion intersecting with the horizontal plane.
The locus in the circumferential direction at the step 11 is a perfect circle. Therefore, the male screw 14A is formed in this portion, and the outer layer 1 is formed.
The inner layer 10A is formed by forming a female screw 14B that can be screwed with the male screw 14A at the lower edge of the inner wall surface of the inner layer 10B.
And the outer layer 10B are configured to be detachable.

Reference numeral 19 denotes drain holes provided at several locations on the lower edge of the outer layer 10B, and the recesses 17 of the inner layer 10A.
Has a role of discharging rainwater flowing down to the outside of the outer layer 10B.

Next, another embodiment of the protective cap according to the present invention will be described with reference to FIG. FIG. 4 is a partial side view of the cap body 10 cut along a vertical plane orthogonal to the ridges 18 formed on the outer surface of the cap body 10.

On both sides of the ridge 18, concave portions 17, 17 are formed along the ridge 18, and these ridges 18 and concave portions 17, 17 are formed.
Are covered with a cover 30 having an inverted U-shape in cross section to provide the gap 12, and this portion of the cap body 10 has a double structure.

The lower ends 15, 15 of the cover 30 are
It is fitted into the recesses 17, 17 of the cap body 10 in a state of being bent outward along the 0 recesses 17, 17. Since the cover 30 has an inverted U-shaped cross section, it can be detachably attached to the cap body 10 by bending the cover 30.

The cover 30 is provided with a plurality of air holes 20B for the same purpose as in the above-described embodiment.
0B is provided so as not to overlap with the position of the ventilation hole 20A formed in the ridge 18.

The embodiment shown in FIG. 5 is a modification of the embodiment shown in FIG. 4, and the gap 12 is formed in the recess 17 by covering the groove-shaped recess 17 having a U-shaped cross section with a flat cover 30. It is provided. For the same purpose as in the above embodiment, a plurality of ventilation holes 20B are formed in the cover 30 at positions facing the recesses 17 and ventilation holes 20A are formed in the side walls of the recess 17.

In the embodiment shown in FIGS. 1 to 4, the two members constituting the two-layer structure are directly fitted and the cap body 10 is integrated without using any special member. The cap body 10 and the cover 30 are made detachable by using screw parts 16 such as bolts or screws as fastening means.

With respect to the above-mentioned protective cap, a standard determined by the Minister of Labor (Notification No. 39 of the Ministry of Labor dated June 5, 1991)
No. 6), a penetration resistance test (Articles 6 and 7) and a shock absorption test (Article 8) were performed.

[0028]

According to the protective cap according to the first aspect of the present invention, since the cap body has a detachable structure, the inner and outer surfaces of the two-layered cap body can be easily cleaned by wiping with a cloth or the like.

In the protective cap according to the second aspect, in particular, dirt adhering between layers due to mixing of sweat, sebum, dust and the like can be completely cleaned.

In the protective cap according to the third aspect, in addition to the above-mentioned effects, furthermore, it is possible to easily exchange a buffer material, a chemical agent or the like packed between the layers.

Therefore, the protective cap of the present invention can be used for various construction work, civil engineering work, heavy equipment operation, vehicle and aircraft driving work, security work inside and outside the building, police, fire fighting, etc., as well as American football and ice hockey. , Can be used for other sports. Further, it can be widely used in construction sites such as buildings and dams, construction sites such as roads and tunnels, shipyards, steelworks, ironworks, ore mining sites, and various other work sites and factories. .

[Brief description of the drawings]

FIG. 1 is a side view showing an inner layer 10A and an outer layer 10B constituting a cap body 10 which are vertically separated.

FIG. 2 is a vertical sectional side view of a cap body 10 in which an outer layer 10B is attached and integrated from above an inner layer 10A shown in FIG.

FIG. 3 is a side view of a cap body 10 as another embodiment, which is shown separately in an inner layer 10A and an outer layer 10B.

FIG. 4 is a vertical sectional side view of a main part showing another embodiment of the protective cap according to the present invention.

FIG. 5 is a longitudinal sectional side view of a main part showing another embodiment of a cap body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hat body 10A Inner layer 10B Outer layer 11 Step part 12A of inner layer 10A Gap 13A, B Engagement part 14A, B Male screw, female screw 15 Lower end of cover 16 Screw part 17 Concave part, concave part 18 Convex part, convex part 19 Drain hole 20A, B Vent 30 Cover

Claims (3)

[Claims] 1. A protective cap in which a part or the whole of a cap body has a two-layer structure by at least two detachable members. 2. The protective cap according to claim 1, wherein ventilation holes which do not overlap each other are formed in both of the two members constituting the two-layer structure. 3. The protective cap according to claim 1, wherein a buffer or a chemical agent is sandwiched between the two layers.