Face shield

Abstract

An inner wall of a face shield, such as a welding screen, intended to be placed in front of the face of a wearer, comprises a front side portion, side wall portions, said front side portion having a light transparent part intended for a protective glass, the side wall portions being bent inwardly in the direction towards the place where the face of the wearer is intended to be positioned, from the region where the mouth of the wearer is intended to be positioned to the region where the eyes of the wearer are intended to be positioned, the front side portion of the inner wall in the above mentioned region being placed in the direction towards the place where the face of the wearer is intended to be positioned, the inwardly bent front side portion and the inwardly bent surroundning side wall portions together forming at least one evacuation channel in cooperation with a cover, adapted to be releasably arranged on the inner wall, forming air deflection means for exhalation air, and that at least one opening is formed in the inwardly bent part of the front side in the region where the nose and the mouth of the wearer are intended to be positioned. In accordance with the invention, at least said front side portion is adapted to receive said cover in such a way that a light transparent portion thereof is arranged at said light transparent part of the inner wall.

Description

[0001] The patent application for the present invention is a divisional application of the patent application with the filing date of May 14, 1996, the application number being 96194032.8, and the invention title "face mask". Technical field [0002] The present invention relates to an inner wall of a mask to be worn in front of a user's face. [0003] The invention also relates to a mask adapted to be detachably arranged on the inner wall of such a mask. [0004] The present invention also relates to a face mask having such an inner wall and a cover. Background technique [0005] The above-mentioned inner wall, cover, and face mask are known from FR-A-2335200. [0006] In order to prevent the eyes and face from being damaged by ultraviolet rays, heat, toxic substances, particles or other factors that can cause damage to the above-mentioned parts of the human body, people need to wear masks during welding and machining. [0007] For a long time, there has been a problem that users...

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that the inhaled gas will encounter greater breathing resistance when passing through the hose, which means that the user needs to breathe hard, and a large amount of exhaled gas remains in the mask during the exhalation process. During subsequent inhalations, the carbon dioxide content of the inhaled gas increases

Moisture problem is another disadvantage of this structure, when the user wears the mask on the nose and mouth for a long time, there may be danger of allergies and uncomfortable feeling

[0011] In the case of riding a motorcycle, etc., there will be problems with high head temperature and fogging of the goggles when using a one-piece hood

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