JP2000096333A - Helmet with cold reserving mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a helmet worn in a high-temperature job site under the blazing sun. SOLUTION: This helmet with a cold reserving mat 5 is obtained by freely detachably internally installing the cold reserving mat 5 on the inside of the helmet. The cold reserving mat 5 comprises an airtight sheet capable of maintaining the flexibility even by freezing and further a mat body having many hermetically sealed chambers 9 of a cold reserving agent divided in a mutually independent state on the plane of the sheet part in an adjacent state and the cold reserving agent respectively sealed in the respective hermetically sealed chambers 9 of the cold reserving agent and capable of storing the thermal energy of the cooling heat by freezing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet suitable for use in construction sites such as under scorching sun and other various high-temperature environments.

[0002]

2. Description of the Related Art Heretofore, for example, at a construction site such as a construction site, it is required to wear a safety helmet even in hot weather in order to keep workers safe. However, conventionally used safety helmets have a hemispherical safety band consisting of a net, a cross band, etc. to be brought into contact with the upper surface of the wearer's head inside the reinforced plastic hemispherical helmet main body. It has a structure in which it is attached at an appropriate distance from the upper surface, and a jaw string is attached to the end of the safety belt.

[0003] However, when a conventional safety helmet is worn in a hot workplace under hot weather, the inside of the helmet becomes hot, which may hurt the worker's health and may cause personal injury in a particularly hot summer. . Conventionally, as one of the measures against such a high temperature, a method has been taken in which an operator himself puts a towel or a water-soaked towel in a helmet body, but this is not sufficient.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a helmet capable of maintaining health safety even in a high-temperature environment such as under hot weather.

[0005]

Means for Achieving the Object In order to achieve the above object, the present invention comprises a helmet and a detachable cooling mat inside the helmet, which is made of an airtight sheet which maintains its flexibility even by freezing. A mat body having a large number of refrigerant sealed chambers which are separated from each other on a plane of a sheet portion in an adjacent state, and a cold insulator capable of storing cooling heat by freezing, which is sealed in each of the above-mentioned refrigerant sealed chambers. We propose a helmet with a cooling mat consisting of an agent.

In the present invention, the term "airtight sheet having flexibility even after freezing" includes synthetic resins such as vinyl chloride resin and polyethylene resin, silicon rubber, GR-S synthetic rubber and other low-temperature rubber and the like. An airtight sheet is used.

[0007] The above-mentioned "cooling agent" includes those which cure at a low temperature, such as those obtained by adsorbing water on water-soluble polymers such as gelatin, polyvinyl alcohol and polyethylene oxide.
And those having flexibility even at low temperatures, such as those containing polyvinyl chloride, plasticizer, water-containing water-absorbing gel or water-soluble polymer aqueous solution and emulsifier, and various other agents capable of storing cooling heat by freezing. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a main band (2) made of cloth is fixed in an annular shape along the entire inner periphery of an inner surface of a hemispherical helmet body (1) near an opening edge. A plurality of cloth sub-bands (3) are radially interleaved at equal intervals in each intermediate portion, and are connected to each other at the intermediate portions to form a safety belt (4). While turning the helmet body (1) to the back of the helmet body in a hemispherical shape, and having the curved surface appropriately spaced from the inner upper surface of the helmet body (1), the both ends of each sub-band (3). The cooling band (5) is connected between the sub-bands (3) and (3) of such a helmet and between the inner surface of the helmet body (1) and the safety band (4). Is removably inserted into (6) is a jaw string.

The mat body (7) of the cold insulation mat (5)
Is made of a vinyl chloride resin sheet. A large number of mutually independent frustoconical refrigerating materials sealed chambers (9) are staggered on the plane of a rectangular sheet portion (8). Each of the sealed chambers (9) ... is filled with a cooling agent (10) composed of polyvinyl chloride, a plasticizer, a water-containing water-absorbing gel, and an emulsifier, and sealed.

The operation of the above example will be described together with a usage example. Replace the cooling mat (5) in the helmet with the auxiliary band (3),
(3) Pull it out from the outside, wind it up compactly or fold it and put it in the freezer compartment of the refrigerator.
For 2 hours. In the cold insulation mat (5), a large number of the cold insulation sealed chambers (9) are separated from each other on the surface of the flexible sheet portion (8) at a small interval, so that the entire mat can be easily deformed. This facilitates rounding and folding as described above, and can be stored in a large amount in a freezer compartment.

[0011] A cooling mat (5) in which sufficient cooling heat is stored.
After taking it out of the refrigerator, it is rolled up thinly and inserted between the safety band (4) and the helmet body (1) from between the sub-bands (3) and (3) of the helmet. Spread flat and spread on the back of the safety belt (4).
The ease of deformation of the cold insulation mat (5) facilitates insertion into the back of the safety belt (4).

When the helmet equipped with the cooling mat (5) is worn as described above, the head is cooled by the cool air from each cooling agent sealed chamber (9) of the cooling mat (5), and the work under the scorching sun Also protect the wearer's health and prevent the occurrence of personal injury. When the helmet is worn, the cold insulation mat (5) conforms to the safety band (4) that turns into a hemispherical shape along the head, deforms, and cools the wearer's head almost uniformly.

FIG. 3 shows another embodiment of the cold insulation mat, in which a large number of cold insulation chambers (9a)... Are formed on the surface of the sheet portion (8a) at a small interval from each other in a linear arrangement in both the vertical and horizontal directions. It is an example. According to this example, the deformation is further facilitated.

[0014]

According to the helmet with the heat insulating mat of the present invention, the wearer's head is cooled by the heat storage cold air in the heat insulating agent sealed room, thereby protecting the worker's health even at a high temperature work site under the scorching sun. In addition, the occurrence of personal injury can be prevented. Moreover, in the present invention, since a large number of the cold sealant sealed chambers of the cold insulating mat are divided at a small interval from each other on the sheet part plane holding the flexibility, the entire cold insulating mat is easily deformed, This allows the cooling mat to be compacted by rolling or folding, etc., so that it can be stored in a large amount in the freezer compartment, it can be easily inserted into the helmet, and when worn in the helmet, Advantages such as substantially uniform cooling to the head can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a helmet with a cooling mat.

FIG. 2 (a) is a partially cutaway plan view of a cold insulation mat. (B) It is the same side view.

FIG. 3 (a) is a partially cutaway plan view of another embodiment of the cold insulation mat. (B) FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Helmet body 5, 5a Insulated mat 7, 7a Mat body 8, 8a Seat part 9, 9a Refrigerant sealed room 10, 10a Refrigerant

Claims (1)

[Claims] 1. A refrigeration mat is detachably provided inside a helmet, and the refrigeration mat is made of an airtight sheet which maintains flexibility even by freezing, and is separated from each other on a plane of the sheet portion. A helmet equipped with a cold insulation mat, comprising: a mat body having a large number of sealed cold storage chambers adjacent to each other; and a cold storage medium sealed in each of the cold storage chambers and capable of storing cooling heat by freezing.