JP2003043424A - Corrective spectacles for full mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corrective spectacles for full mask which does not cause the leakage of airtightness even when a spectacles user wears a full mask and can be supplied at a low cost. SOLUTION: This corrective spectacles for full mask which is used in wearing a full mask features that the periphery of frame of the corrective lens is surrounded by a cushion member and both of end parts of the frame is bound via an elastic band whose sectional shape is flat.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to corrective eyeglasses for a full face mask used when a user of eyeglasses uses a respiratory protective equipment having a full face mask.

[0002]

[Prior Art] Dismantling and renovation workshops, fire fighting activities by firefighters,
In an environment such as a polishing workshop or a chemical factory where dust and toxic gas are present, it is common to wear a respirator (which may be simply referred to as a full face mask) having a full face mask for working. In order to keep the space inside the mask (also called the facepiece) clean, this full-face mask is made to adhere the face to the face-piece part of the full-face mask, removes toxic gas, dust, etc. from outside with a filter, etc. Air is supplied to clean the air inside the facepiece. By the way, when a worker who wears corrective glasses wears a full-face mask, if the worker wears a full-face mask while wearing the glasses, the vine part worn on the ears covers the face-contact part of the full-face mask. There was a problem that it crossed, and as a result, an airtight leak occurred. For this reason, a lens attachment frame for attaching a lens suitable for the operator's prescription is usually provided on the entire mask side. According to this, there is no need to worry about airtight leakage because the above-mentioned hanging on the ear is not required. However, the spectacles dedicated to the full face mask have the following problems. That is, it cannot be used when the full-face mask is not attached. Since the prescription of eyeglasses differs for each individual, they become personalized eyeglasses. For this reason, it is made to order, so the price is expensive and it is difficult to spread.

[0003]

The present inventor has completed the present invention as a result of various studies to solve the above problems, and an object of the present invention is for an eyeglass user to wear a full-face mask. To provide corrective eyeglasses for full-face masks that can be supplied at a low price without the problem of airtight leakage.

[0004]

According to the present invention, there are provided corrective spectacles for a full-face mask used when wearing a full-face mask, the spectacles being surrounded by a frame body into which a corrective lens is inserted and a cushion member surrounding the frame body. At the same time, the corrective eyeglasses for a full-face mask are characterized in that both ends of the frame body are bound together via elastic bands having a flat cross-sectional shape. The correction lens may be integrated with the frame body or may be a separate body. That is, since the full-face mask straightening glasses of the present invention is provided with the cushion member around the frame of the straightening lens,
You can soften the contact with the face when fixing it to the face, and you can deal with people with various facial shapes with one type. Also, since the correction lens can be easily attached to and removed from the frame body, or the frame body with the correction lens can be easily attached to and detached from the cushion member, the lens can be selected and exchanged according to the power of the individual. You don't have to use special glasses.
In particular, for this type of lens, since a lens with a degree of more than 10 levels is commercially available as a lens for underwater spectacles, if this is used, the lens can be replaced at low cost. And
Since the temple part of the spectacles is composed of a cushion member having a flat cross-sectional shape, the gap between the face-crossing parts can be remarkably reduced, and the airtightness inside the facepiece can be maintained. The corrective spectacles can be fixed to the face by the cushion member and the elastic band, and the nose belt connecting the left and right frames can be adjusted to fit the interpupillary distance of each wearer. Further, if the cushion member and the face are in close contact with each other and air does not flow on the inner surface of the lens, perspiration from the face may cause fogging on the inner surface of the lens.
It is preferable to provide since the air can be flowed to the inner surface of the lens and fogging can be prevented.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail.
The material of the corrective lens of the present invention or the one in which the corrective lens and the frame are integrated is preferably made of plastic such as polycarbonate, and the left and right ones may be integrally molded, but they may be adjusted separately. Tying with a possible nose belt is preferable because it fits the distance between the pupils of each wearer. Also, the cushion member may be integrated with the frame body,
Alternatively, it may be a separate body, and by providing a cushion member, the contact can be softly fixed to the wearer's face. Further, it is preferable to provide a ventilator (ventilation hole) in the cushion portion in order to prevent the lens from fogging. The elastic band having a flat cross section used in the present invention has a width of about 10 to 30 mm and a thickness in consideration of strength, but a thinner one is preferable, for example, 4 mm or less, preferably 2 mm or less. . The material may be any band that is highly stretchable, such as polyurethane, silicone rubber, and soft polyvinyl chloride, the length of which can be adjusted to suit the size of the wearer. The elastic band and the cushion member can fix the corrective glasses to the wearer's face.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will now be specifically described with reference to the drawings. FIG. 1 is an explanatory view of corrective eyeglasses for a full face mask according to the present invention, FIG. 2 is a side view of a cushion member, and FIG. 3 is an explanatory view when fixed to a face. In FIG. 1, the left and right frames 1 are connected by a nose belt 2, and the periphery thereof is surrounded by a cushion member 3. A lens 5 is inserted into the frame body 1 so that the lens 5 can be freely exchanged, and an elastic band 4 having a flat cross section is attached to the end of the frame 5 so that the length can be adjusted. FIG. 2 is a side view of the cushion member, and a ventilator 6 is provided on the peripheral wall thereof. FIG. 3 is an explanatory view of a case where this is fixed to the face. Since the ventilator 6 is provided on the peripheral wall, air circulates on the inner surface of the lens and it is possible to prevent fogging of the inner surface of the lens due to perspiration. At the time of use, the cushion part is applied around the wearer's eyes, and the length of the flat elastic band 4 is adjusted and fixed to the face. After that, put on a full-face mask.

[0007]

As described above, since the corrective eyeglasses for a full-face mask of the present invention are worn with elastic bands having a flat cross-sectional shape, airtightness is maintained even when the full-face mask is attached, and around the frame body. By providing the cushion member, the lens is fixed, and if the cushion member is provided with the ventilator, it is possible to prevent fogging of the inner surface of the lens.

[Brief description of drawings]

FIG. 1 is an explanatory view of corrective eyeglasses for a full face mask of the present invention.

FIG. 2 is a side view of a cushion member.

FIG. 3 is an explanatory view when a cushion member is fixed to a face.

[Explanation of symbols]

1 frame 2 nose belt 3 cushion member
4 Elastic band 5 Lens 6 Ventilator

Claims (4)

[Claims] 1. Corrective eyeglasses for a full-face mask used when wearing a full-face mask, wherein the eyeglasses surround a frame of a corrective lens with a cushion member, and both ends of the frame are elastic bands having a flat cross section. Corrective eyeglasses for a full-face mask, which are characterized in that they are bound together. 2. The correction spectacles for a full-face mask according to claim 1, wherein the correction lens and the frame are integrated. 3. The correction spectacles for a full face mask according to claim 1, wherein the frame and the cushion member are integrated. 4. The corrective eyeglasses for a full face mask according to claim 1, wherein the cushion member is provided with a ventilator.