The present invention relates generally to storage and, more particularly, to equipment for swimming and underwater activities.
Scuba diving masks typically comprise a rigid frame supporting a transparent lens, or “visor”, and a flexible gasket or “skirt” attached to the perimeter of the frame suitable for resting against the scuba diver's face so as to provide the necessary watertightness. A support strap, jointed to either side of the mask, is usually also provided to ensure a close fitting of the mask against the scuba diver's face.
The frame can also be made in two parts, in which case the visor consists of two symmetrical lens elements.
In masks of the known type, the two ends of the supporting strap are equipped with a buckle that allows for the adjustment of the strap's length so as to enable the mask to be adapted to the dimensions of the user's head.
The two buckles may be connected either to the two sides of the rigid frame or to the two sides of the flexible skirt of the mask.
In the former case, a pair of brackets lying substantially perpendicular to the plane of the visor and facing towards the rear of the mask extend rigidly from the mask frame. These two brackets are consequently aligned with the direction that the ends of the supporting strap tend to occupy when the mask is being worn. The two brackets are rigid as the frame of the mask is, thus resulting in the increase of the overall dimensions of the mask in the direction perpendicular to the plane of the visor. This configuration influences the costs involved in the transport of the mask (because the mask has to be placed in a container of appropriate dimensions), and makes some troubles to the user when the mask has to be stored.
In the case of the second known type of connection, the buckles on the straps are attached directly to the flexible skirt, so the problem of the mask overall dimensions when it has to be transported or stored would appear to have been overcome.
However, this second known type of solution has several drawbacks. As a matter of fact, this second solution has so far only been applied to a very limited number of models. The first drawback consists in that any strap-tightening action modifies the shape of the flexible skirt, with an unavoidable loss of watertightness when this action is taken underwater. A second drawback lies in that, when the mask is being adjusted, a tensile stress is produced on the flexible skirt referring to the point where the buckle is attached, thus resulting in the rupture of the skirt after a certain number of adjustment operations.
The object of the present invention is to provide a scuba diving mask that allows the above drawbacks of scuba diving masks of the known type to be avoided.
A particular object of the present invention is to provide a scuba diving mask wherein the connection between the frame and the adjustment strap is such that it allows the overall dimensions of the mask to be reduced when the mask must be placed in a box for packaging and dispatch operations, or stored after use, without this entailing any risk of damage to the skirt after the repetition of a certain number of adjustment operations of the length of the strap.
These objects are achieved with a scuba diving mask according to the present invention, characterized in that the brackets connecting the frame to the strap adjustment buckles are made of a flexible material.
A specific, illustrative space-saving scuba diving mask, according to the present invention, is described below with reference to the accompanying drawings, in which:
Still other objects and advantages of the present invention will become apparent from the following description of the preferred embodiments.
Referring now to the drawings and, more particularly, to
According to the invention, the buckles 16 and 17 are attached to the lateral sides 14 of the frame by means of two brackets 20 and 21, made of a flexible material, that extend on a plane substantially perpendicular to the frame. The buckles of flexible material are molded directly onto the material of the frame and the two materials are connected together by means of a chemical bond. The materials involved may be a thermoplastic rubber and a polycarbonate, for instance. The two brackets 20 and 21 can be connected to the buckles 16 and 17 by coupling means of known type, such as pivots and the like (not shown).
The advantages of the invention are illustrated in
As a result, the overall dimensions of the mask are reduced to make easier its transport from the manufacturer to the retailer. The reduced dimensions can also be useful to the user, who can place the mask in a normal pocket or in a standard spectacle case.
Various modifications and alterations to the present invention maybe appreciated based on a review of this disclosure. These changes and additions are intended to be within the scope and spirit of the invention as defined in by the following claims.
Number | Date | Country | Kind |
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FI2006U000057 | Sep 2006 | IT | national |