JPH0866422A - Protective spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protection spectacle with comfort feeling of mounting, optimum protection effect and low manufacture cost. SOLUTION: A protection spectacle comprises a lens 5 and a frame 1. The lens and an air hole for an inner chamber formed by the frame and the face of a user are arranged in the frame. The air hole 7 is arranged in lateral frame portion 3 so as to change the direction of the air coming from the outside and bumping against the wall toward the inner side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a sight plate such as a lens and a frame, and a ventilation hole for an inner chamber formed by the sight plate, the frame and the wearer's face is provided in the frame. Concerning the protective glasses that are present.

[0002]

2. Description of the Related Art In the case of such protective goggles worn by workers during partially exhausted physical work, the inner chamber is ventilated through a vent to prevent dust particles and acid or alkaline liquid Optimal protection against the ingress of such corrosive liquids is important.

[0003]

Starting from this, the problem underlying the present invention is that the protective action is optimal, the wearing comfort is good and it can be manufactured at low cost. To form such protective glasses.

[0004]

According to the invention, the object is according to the invention that vents are provided in the lateral frame parts so that air comes from the outside and is redirected towards the inside through the abutment wall. Will be solved by

By arranging the vent holes laterally, the possibility that particles or spattered liquid will reach the vent holes is originally small. This is because, in general, these particles and splashes come out of the working area in front of the face. Further, by providing the abutting wall, that is, the collision wall, particles or droplets generated in some cases do not enter the inner chamber. Furthermore, since the air exchange is unobstructed, the vent can fully perform its venting function.

In another embodiment of the invention, at least one such vent is provided in the transition range from each lateral frame part to the upper and / or lower frame part. Vents can be formed in this transition region with great advantage in terms of molding technology.

Further, a narrow slit-shaped additional vent is provided in the range of the side frame part, and the opening plane of this vent is provided almost perpendicular to the direction of the user's line of sight, and the vent is provided. It is advantageous if it is provided in a region below the head belt fixing part.

Further, within the scope of the present invention, as is known per se, a collecting groove is formed along the upper surface of the protective spectacles, and a through hole from the collecting groove to the lower side of the spectacles is provided. In response, the liquid collected there can be discharged downwards.

It is advantageous if the eyeglass frame is provided with a recess for hooking a respiratory protection mask or the like. At that time, the through-hole can be used as a recess for hooking a respiratory protection mask or the like.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described with reference to the drawings.
A detailed description will be given based on a preferred embodiment.

The protective spectacles shown in the figure comprise a frame 1 having an upper frame part 2, two lateral frame parts 3 and a lower frame part 4, and a lens 5 as a sight plate, which is filled in with broken lines. There is.

Vent holes 7 are formed at the upper end and the lower end of the lateral frame portion 3, respectively. The opening surface 8 of the vent hole 7 extends perpendicularly to the direction of the user's line of sight (arrow 9). After the passage-like section 10, the abutment wall 11 extends perpendicularly to the passage-like section 10 and thus parallel to the opening surface 8. Passage section 10
At the end of the front end of the wall 11 in front of the wall 11, the through hole 12
Are formed. This through hole opens to the inner chamber 13. This inner chamber is surrounded on the one hand by the lens 5 and the frame 1 and, on the other hand, by the wearer's face. The arrow 14 indicates the exchange of air between the inner chamber 13 and the outside. In this case, particles and drops cannot be penetrated by the straight flight course.

Further, a slit-shaped vent hole 16 is formed in the back wall 15 of each side frame portion 3. This vent can exchange air as shown by arrow 17. The vent 16 is located in the back wall and is narrow in width, so that the penetration of particles or liquid drops is extremely small.

A collection groove 18 is formed in the upper frame portion 2. In this case, a downward penetrating opening is provided in the end area of the collection groove. The passage-like section 10 is
If necessary, it can be used as a hook hole for hooking a respiratory protection mask, a mouth protection member, or the like.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of protective glasses according to the present invention.

FIG. 2 is a plan view showing a lateral range partially broken.

[Explanation of symbols]

 1 Frame 2 Upper Frame Part 3 Side Frame Part 4 Lower Frame Part 5 Lens 7 Vent 9 Gaze Direction 10 Passage Section 11 End Wall 16 Vent 18 18 Collection Groove

Claims (6)

[Claims] 1. A protective spectacle comprising a sight plate and a frame, in which a ventilation hole for an inner chamber formed by the sight plate, the frame and the wearer's face is provided. Protective eyewear, characterized in that a vent (7) is provided in the lateral frame part (3) so as to come in and turn inwards through the abutment wall (11). 2. At least one such vent (7) is provided in the transition range from each lateral frame part (3) to the upper and / or lower frame part (2 or 4). The protective glasses according to claim 1, wherein the protective glasses are provided. 3. In the range below the head belt fixing part,
A narrow slit-like additional vent (16) is provided in the region of the side frame part (3), the vent opening plane being substantially perpendicular to the direction of the user's line of sight (arrow 9). The protective glasses according to claim 1, characterized in that: 4. The protective groove is provided along the upper surface of the protective glasses (1).
8. Protective eyewear according to claim 1, characterized in that it is provided with 8), and a through hole from this collection groove (18) to the lower side of the glasses is provided. 5. The protective glasses according to claim 1, wherein a concave portion for hooking a respiratory protection mask or the like is provided on the spectacle frame. 6. The protective eyewear according to claim 4, wherein the passage-shaped section (10) can be used as a recess for hooking a respiratory protection mask, a mouth protection member and the like.