Double-lens ski goggles

Abstract

Ski goggles of the type including a frame of flexible material for supporting an optical system including two mutually facing lenses connected together by a seal gasket which with said lenses forms an air chamber, the gasket being provided with at least one hole which connects the air chamber to the outside and houses a material which is permeable to air but not to water, wherein the gasket forms a cylindrical seat which is filled with said material and communicates with the outside via at least a channel.

Claims

1. Ski goggles of the type comprising a frame of flexible material for supporting an optical system consisting of two mutually facing lenses connected together by a seal gasket which with said lenses forms an internal space, the gasket being interposed between said two lenses and shaped to form a ring defining a cylindrical chamber, said cylindrical chamber housing a membrane which is permeable to air but not to water, wherein the gasket includes a first cut to connect the internal space with the cylindrical chamber housing a membrane, and wherein the gasket includes a second cut to connect the cylindrical chamber housing a membrane with the outside.

2. The ski goggles as claimed in claim 1, wherein said membrane comprises a microporous filter permeable to air but not to water.

3. The ski goggles as claimed in any claim 1, wherein said seal gasket is made of neoprene.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention is further clarified hereinafter with reference to the accompanying drawings, in which:

(2) FIG. 1 shows a front view of a pair of ski goggles according to the invention,

(3) FIG. 2 is a detailed plan view showing the two superposed lenses joined by the gasket,

(4) FIG. 3 is a section therethrough on the line of FIG. 2,

(5) FIG. 4 is a section therethrough on the line IV-IV of FIG. 2,

(6) FIG. 5 shows a section through a variant taken on the line IV-IV of FIG. 2,

(7) FIG. 6 is a plan view of two superposed lenses using a different system, and

(8) FIG. 7 is a section therethrough on the line VII-VII of FIG. 6.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

(9) As can be seen from the figures, the double-lens goggles according to the invention comprise a masking element 2, an elastic strap 4 connected to the masking element 2, and a lens system 6 removably secured to the masking element 2.

(10) The masking element 2, which is made of soft material such as polyurethane rubber, comprises a perimetral seat for inserting the lens system.

(11) The lens system comprises an inner lens 8 and an outer lens 10, which are of transparent plastic and can be flat or curved, with a specific internal space 12 formed between the two lenses. The internal space serves as a heat insulating layer.

(12) The two lenses are connected together by a neoprene gasket 14 (FIG. 2) which at certain points, preferably on the low part of the masking element, presents a seat into which a membrane 16 is inserted having the characteristic of allowing air to pass but not water (FIG. 4).

(13) This type of membrane consists of a microporous filter permeable to air but not to water, such as a GORE-TEX fabric.

(14) In a variant, a complete gasket portion 14 is replaced by a layer of membrane 16 (FIG. 5).

(15) In the embodiment shown in FIG. 6, the gasket 14 forms a ring 18 defining a cylindrical chamber filled with the membrane 16 of the aforedescribed type.

(16) To enable air to pass through the membrane occupying this chamber, the gasket joining the lenses 8 and 10 can be provided with a cut 20.