JP2000226716A - Protecting cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a protecting cap having improved air permeability of inner part, discharging heat and moisture to the outside, providing a pleasant operation, having improved strength and preventing penetration of rain water. SOLUTION: A hollow rib 2 having a reversed concave section is protrusively arranged in a plane cross state along the surface of a main body 1 of a protecting cap forming a hollow hemispherical shape from the top of the cap to the side parts. Plural air vents 4 communicating with the interior of the main body 1 of a protecting cap are characteristically bored through sides 3 of the hollow ribs 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective cap with an improved ventilation structure.

[0002]

2. Description of the Related Art In general, workers working at construction sites and factories are required to wear protective caps (helmets) to protect their heads from external impacts and flying objects. The conventional protective cap has a structure in which a headband is attached to the inside of a protective cap body having a hollow hemispherical shape formed of plastic.

[0003] However, when performing outdoor work in the summer with a protective cap on, it is known that there is a problem in work safety because heat and moisture accumulate inside the protective cap and the head becomes humid. Sometimes I did work without wearing a protective cap.

[0004]

SUMMARY OF THE INVENTION The present invention eliminates the above-mentioned drawbacks, improves the inside air permeability, discharges the accumulated hot air and moisture to the outside, makes it possible to work comfortably, and improves the strength.
An object of the present invention is to provide a protective cap in which rainwater is prevented from entering.

[0005]

The protective cap according to the first aspect of the present invention has a hollow rib having an inverted concave cross section from the top to the side along the surface of the protective cap body having a hollow hemispherical shape. A plurality of ventilation holes communicating with the inside of the protective cap main body are formed on the side surface of the hollow rib.

The protective cap according to claim 2 of the present invention is characterized in that hollow ribs are formed in a plane cross shape on the surface of the protective cap main body. Furthermore, the protective cap according to claim 3 is characterized in that a plurality of hollow ribs are formed in parallel on the surface of the protective cap main body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIG.
This will be described in detail with reference to FIG. In the figure, reference numeral 1 denotes a protective cap main body having a hollow hemispherical shape, which is formed of plastic. Along the surface of the protective cap main body 1, hollow ribs 2 and 2 project in a plane cross shape from the top to the side.

As shown in FIG. 3, the hollow rib 2 is formed to have an inverted concave cross section, and a ventilation hole 4 is provided at a predetermined interval along the longitudinal direction between the side surfaces 3, 3 of the hollow rib 2. ... are open. In addition, the height of the end side of the hollow rib 2 is gradually reduced so that the end smoothly matches the surface.
In the figure, reference numeral 5 denotes a headband attached to the inside of the protective cap main body 1.

[0009] The protective cap having the above structure is put on the head and fixed with the headband 5 when working. In this state, when working in summer, the heat and moisture inside the protective cap main body 1 rise, reach the inside of the hollow rib 2 formed in a plane cross shape from the top to the side, and further on the both sides 3, 3 Open vent 4
The air having a low temperature is discharged to the outside, and flows into the inside from the peripheral edge of the bottom opening of the protective cap main body 1. As a result, the inside of the protective cap main body 1 is constantly ventilated, and there is no accumulation of hot air or moisture, so that the protective cap can be worn comfortably even in summer.

The protective cap is intended to protect the head from external impacts and flying objects, and the protective cap of the present invention has a hollow rib 2 formed in an inverted concave cross section from the top to the side. Since the protruding portion is formed in a plane cross shape along the surface over the portion, the strength is improved, and the head can be sufficiently protected from external impact and flying objects. Also, the surface is not hemispherical as in the conventional protective cap, and the hollow ribs 2 are projected in a cross shape. However, since the upper surface is curved along the surface of the protective cap main body 1, Even if a falling object collides, it can slide and fall.

[0011] Further, even if it rains when working outdoors, and the surface of the protective cap is wet with rainwater, the vent hole 4 is opened at the intermediate portion between the side surfaces 3, 3 of the protruding hollow rib 2. Therefore, it is possible to prevent rainwater from flowing down the surface of the protective cap main body 1 and entering the inside.

FIG. 4 shows another embodiment of the present invention, in which three hollow ribs 2 project in a river shape from the top to the front and rear surfaces along the surface of the protective cap body 1. It is established. The height of the end side of the hollow rib 2 is gradually reduced so that the hollow rib 2 smoothly matches the surface. Further, the hollow rib 2 is formed to have an inverted concave cross section, and its both side surfaces 3,
3 are provided with ventilation holes 4 at predetermined intervals along the longitudinal direction.

In the above description, the case where the hollow rib 2 is formed in a cross shape and a river shape is shown, but other shapes may be used. In addition, although the case where the ventilation port 4 is opened on both side surfaces 3 and 3 of the hollow rib 2 is shown, a structure provided only on one side surface 3 may be used.

[0014]

As described above, claim 1 according to the present invention.
According to the protective cap described, along the surface of the protective cap main body, a hollow rib having an inverted concave cross section is protruded from the top to the side portion, and the side of the hollow rib communicates with the inside of the protective cap main body. Since a plurality of ventilation holes are opened, the hot air and moisture inside the protective cap body rise and reach the inside of the hollow rib formed from the top to the side, and from the ventilation opening opened on this side to the outside It is ventilated all the time, so it can be worn even in summer without accumulation of hot or humid air.

Further, in the protective cap of the present invention, the hollow rib is projected from the top to the side surface in a plane cross shape along the surface, so that the strength is improved, and the head is protected from external impacts and flying objects. Can be protected. Also, when working outdoors, even if it rains and the surface gets wet with rainwater, the ventilation hole is opened on the side surface of the protruding hollow rib, so that it does not enter the inside of the protective cap.

[Brief description of the drawings]

FIG. 1 is a perspective view of a protective cap according to an embodiment of the present invention.

FIG. 2 is a sectional view of the protective cap shown in FIG.

FIG. 3 is an enlarged sectional view of a hollow rib of the protective cap shown in FIG.

FIG. 4 is a perspective view of a protective cap according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Protective cap main body 2 Hollow rib 3 Both sides 4 Vent 5 Headband

Claims (3)

[Claims] 1. A hollow rib having an inverted concave cross section is protruded from the top to the side along the surface of the protective cap main body having a hollow hemispherical shape. A protective cap, wherein a plurality of communicating holes are opened. 2. The protective cap according to claim 1, wherein hollow ribs are formed in a plane cross shape on the surface of the protective cap main body. 3. The protective cap according to claim 1, wherein a plurality of hollow ribs are formed in parallel on the surface of the protective cap main body.