JPS62147424A - Protective glasses - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention comprises a see-through plate and a frame made of an elastically deformable material that houses the see-through plate. This invention relates to safety goggles provided on the outer surface of.

[Prior art]

This type of protective eyewear, usually called full vision eyewear, is
For example, they are used as work safety glasses or ski glasses. In the case of these glasses, it is known to provide ventilation holes in the frame itself in order to prevent fogging of the viewing plate as much as possible. A retaining belt for securing safety glasses of this type is attached to a securing device. This fixing device must either be integrally injection molded with the frame or be assembled to the frame at relatively high cost.

[Purpose of the invention]

The problem on which the invention is based is that the fixing device for the holding belt can be easily manufactured using injection molding technology and can be assembled at low cost, while at the same time ensuring good ventilation of the interior of the spectacles. The object of the present invention is to provide protective eyewear of the type mentioned at the outset.

DESCRIPTION OF THE INVENTION This problem is achieved according to the invention in that the fixing device can be connected to the frame in a complementary manner and is provided with a vent for the interior of the spectacles.

〔Effect of the invention〕

This configuration allows the injection molding of the frame to be produced at low cost, allows for quick and simple assembly of the fastening device, and at the same time allows for defined ventilation by means of vents integrated in the fastening device.

[Embodiments of the invention and its effects]

Advantageously, the fastening device is provided with a circumferential groove and is button-shaped in the corresponding cutout, such that the edge of the cutout of the frame fits into the groove. This allows the frame to be fixed by utilizing its own elasticity. This fixation allows assembly without any additional auxiliary means.

Furthermore, the fixing device comprises a base plate, the vent hole is formed as a through hole in this base plate, the base plate has a threaded part in the middle, and a cover plate for the vent hole can be screwed onto said threaded part. A screwable covering plate provided accordingly allows the vent to be closed when deemed desirable and the degree of opening of the vent can be adjusted by appropriate rotation of the covering plate. At the same time, air cannot directly enter the interior of the spectacles.

It is advantageous for the cover plate to be designed in the form of a disc and to have a grooved edge area. This makes the actuation of the cover plate for opening and closing the vent very simple.

In a further preferred embodiment, the threaded part and the base plate are provided with a hole in the center, into which a bottle-shaped projection of a folding device for the retaining belt can be fitted. Advantageously, the pin-like projection is lockable in the central hole.

This configuration allows the folding device to be closed. This makes assembly of the entire structure much easier. At the same time, the plate-like inner surface of the folding device forms a stop for the covering plate in the fully open state.

Other features, advantages and details of the invention will emerge from the following description of a preferred embodiment based on the figures.

〔Example〕

The illustrated safety glasses or protective goggles, for example work safety glasses, include a see-through plate 1 and a frame 2 made of elastically deformable synthetic resin. A holding belt 4 is fixed to the frame 2 by a fixing device 3. Only one of these fixing devices is shown.

Each fixing device 3 is equipped with a substrate 5. This circular substrate 5, like all other parts of each fixing device 3, is injection molded from synthetic resin. The substrate has #6 in the circumferential direction. The base plate 5 and thus the fixing device 3 are fitted by means of the groove in a complementary manner in the corresponding disc-shaped cutout 7 of the frame 2, i.e. fastened like a button, as shown in particular in FIG. There is.

The substrate 5 further comprises webs 8 . These webs, in this embodiment four in number, carry a central threaded projection 9 which extends outwardly in the mounted state.

This threaded projection 9 has a cover plate 1 provided with a screw hole 11.
0 can be screwed in. The cover plate 10 has a basic shape of a disk whose diameter is somewhat larger than that of the substrate 5.

The outer edge 12 of the covering plate 10 is provided with a small groove 12' which facilitates the rotation of the covering plate 10.

An open L'j through hole is formed in the substrate 5 between the webs 8. This through hole functions as a vent 13. When the covering plate 10 is completely screwed into the threaded projection 9,
The vent 13 can be completely covered by the cover plate 1o. In this case, by rotating the cover plate in the opposite direction, the vent hole 13 can be variably opened. Second
As shown by the arrow 14 in the figure, air cannot directly enter through the vent 13, so that the wearer of the glasses is prevented from feeling the air flow.

The threaded projection 9 or base plate 5 is provided with a central hole 15 . The pin-shaped protrusion 16 of the folding device I7 for the holding belt 4 can be attached to this hole +5. The pin-like projection 16 is provided with a longitudinal slit I8 and a circumferential locking bulge +9 at its free end. The original folding device consists of a box-shaped basic body 20. This basic body has two outer walls 21, 22 parallel to each other and a folded web 23. As shown in FIG. 1, a retaining belt 4 is wrapped around the folded web.

The folding device is fixed to the base body 5 by inserting the pin-like protrusion 16 into the hole 15. In this case, the pin-shaped protrusion 16 is compressed because it is provided with the slit 18. After insertion, after the locking bulge 19 emerges from the other end of the hole 15, the locking bulge is pressed outward by the inherent elasticity of the synthetic resin material used for the pin-shaped projection 16, and as shown in FIG. As shown, it engages over the inner edge of hole 15. The folding device is therefore fixedly mounted in the axial direction.

At the same time, especially as can be seen from Figure 2, the covering plate! 0 fully rotated outward to open the vent 13,
The outer wall 22 of the folding device 17 forms a stop for the covering plate IO.

[Brief explanation of drawings]

FIG. 1 is a partial perspective view of safety goggles according to the present invention showing the fixing device area partially cut away, FIG. 2 is a partial cross-sectional view of the fixing device area, and FIG. 3 is a partial cross-sectional view of the fixing device area. FIG. l ... Transparent plate 2 ... Frame 3 ... Fixing device 4 ... Holding belt 13 ... Vent seam...4

Claims (1)

[Claims] 1. Safety glasses comprising a see-through plate and a frame made of an elastically deformable material that accommodates the see-through plate, and in which a fixing device for a holding belt is provided on the outer surface of the frame, Protective eyewear, characterized in that the fixing device (3) can be connected to the frame (2) in a complementary manner and is provided with a vent (13) for the interior of the eyeglasses. 2. The fixing device (3) is provided with a circumferential groove (6), and the fixing device is provided with a corresponding notch (6) such that the edge of the notch (7) of the frame (2) fits into the groove (6). 7) The safety glasses according to claim 1, wherein the safety goggles are fastened in a button-like manner. 3. The fixing device (3) is equipped with a substrate (5) and has a ventilation hole (13).
) is formed as a through hole in this substrate (5), and
) has a threaded part (9) in the middle, and the covering plate (10) for the vent (13) can be screwed onto said threaded part. glasses. 4. Safety glasses according to claim 3, characterized in that the covering plate (10) is disc-shaped and is provided with a grooved edge area (12). 5. The threaded part (9) and the base plate (5) are provided with a hole (15) in the center and a folding device (17) for the holding belt (4).
Safety glasses according to claim 3, characterized in that a pin-like protrusion (16) can be attached to the hole. 6. Safety glasses according to claim 5, characterized in that the pin-like protrusion (16) can be locked in the central hole (15).