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Waterproof Sound-Permeable Hood

Inactive Publication Date: 2011-09-01
JAPAN GORE TEX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

According to the present invention, a waterproof sound-permeable hood having excellent waterproofness and excellent sound permeability can be obtained.

Problems solved by technology

However, when a hole or break occurs in the waterproof material by, for example, abrasion while wearing or stress during washing, the waterproofness of the waterproof hood becomes lost.
However, such a waterproof hood formed of a relatively thick waterproof material has a very low sound permeability.
Therefore, when a waterproof hood is worn, ambient sounds are difficult to hear, which causes the following problems.
For example, the wearer may have difficulty in making a conversation while wearing the waterproof hood.
Alternatively, the wearer may miss an alarm from a device or the like at a worksite.
However, the waterproof hoods disclosed in Patent Documents 1 and 2 had a problem that raindrops infiltrate through the openings.

Method used

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  • Waterproof Sound-Permeable Hood
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  • Waterproof Sound-Permeable Hood

Examples

Experimental program
Comparison scheme
Effect test

production example 1

A waterproof hood was prepared by sewing a waterproof laminate (“EB FPL70WDH / 6366-WR” available from Japan Gore-Tex Inc.) as a waterproof material. The seam was sealed using a seam-sealing tape (“GORE-SEAM (registered trademark) Tape” available from Japan Gore-Tex Inc.). A waterproof sound-permeable hood was prepared by attaching a waterproof sound-permeable means to each of the portions of the obtained waterproof hood, which portions respectively face to the right and left ears of a wearer. The waterproof sound-permeable means had the same structure as used in the waterproof material having the waterproof sound-permeable means, and the number of attached means was one for each of the portions facing to the right and left ears of the wearer.

When a waterproof test and a durability-against-washing test were carried out for the obtained waterproof sound-permeable hood, water leakage was not observed in either test. In addition, a sound permeability test was carried out for the waterpro...

production example 2

A waterproof hood was prepared using the same waterproof laminated product and seem-sealing tape as those which were used in Production Example 1. A sound permeability test was carried out for the obtained waterproof hood. The result is shown in Table 2.

production example 3

A waterproof hood was prepared using the same waterproof laminated product and seem-sealing tape as those which were used in Production Example 1. The waterproof hood obtained was provided with an opening having an inner diameter of 25 mm each on the portions respectively facing to the right and left ears of a wearer to prepare a sound-permeable hood. A sound permeability test was carried out for the obtained sound-permeable hood. The result is shown in Table 2.

TABLE 2Sound noise measured value (db)Waterproof sound-permeable hood67.5Waterproof hood66.7Sound-permeable hood68.8No hood72.7

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Abstract

It is an object of the present invention to provide a waterproof sound-permeable hood having excellent waterproofness and excellent sound permeability. The waterproof sound-permeable hood of the present invention is formed of a waterproof material, which hood includes a waterproof sound-permeable means provided on at least one of portions respectively facing to the ears of a wearer who wears the waterproof material, wherein the waterproof sound-permeable means includes a waterproof sound-permeable membrane having a sound-transmission loss of not greater than 5 db.

Description

TECHNICAL FIELDThe present invention relates to a waterproof sound-permeable hood having excellent waterproofness and excellent sound permeability.BACKGROUND ARTConventionally, rainwears to be used in daily life or for work, such as raincoats and rain jackets, are each provided with a waterproof hood for preventing the head of a wearer from becoming wet with raindrops or the like. Such a waterproof hood is formed of a waterproof material such as a waterproof fabric or a waterproof sheet. However, when a hole or break occurs in the waterproof material by, for example, abrasion while wearing or stress during washing, the waterproofness of the waterproof hood becomes lost. Therefore, in view of improving the durability against, for example, abrasion while wearing, a material obtained by the waterproof treatment of a relatively thick fabric of polyamide, polyester, or any other resin is often used as a waterproof material forming a waterproof hood.In the meantime, a waterproof hood usua...

Claims

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Application Information

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IPC IPC(8): A42B1/04
CPCA42B1/048A41D2200/20A41D3/04A42B1/04
Inventor KOMADA, ICHIROMANNAMI, SANAEONO, MASASHI
Owner JAPAN GORE TEX INC
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