WO2005030344A1

WO2005030344A1 - Diving and swimming mask

Info

Publication number: WO2005030344A1
Application number: PCT/EP2004/052280
Authority: WO
Inventors: Ciro Giaquinta
Original assignee: Tecno Rubber S.R.L.
Priority date: 2003-10-01
Filing date: 2004-09-23
Publication date: 2005-04-07
Also published as: ITSV20030039A1

Abstract

A diving and swimming mask, comprising a mask body (1) provided with at least a front opening around the eye region, which opening is closed by a transparent member, particularly a lens (2) and there being provided, at each side edge of the mask body (1), an attaching member (5, 6) of an end of a strap (7) for fastening the mask against the user face, characterized in that at least one, preferably each one of said two attaching members (5, 6) is connected to the corresponding side edge of the mask body (1) in an oscillating way about a substantially vertical axis, with reference to the mask being worn by a standing user and with the eyes turned ahead.

Description

Diving and swimming mask.

The present invention relates to a diving and swimming mask, comprising a mask body provided at least with a front opening around the eye region, which opening is closed by a transparent member, particularly a lens, and there being provided at each side edge of the mask body a member for attaching an end of a strap for fastening the mask against the user face. The present invention particularly relates to the attachment system of the strap to the mask. To this end, it is known the possibility to connect in an oscillating way the attachment members of the strap according to a substantially vertical and/or movable direction, still according to a substantially vertical direction. It is to be noticed that in the present specification and in the claims, the vertical direction means always a direction parallel to the vertical aacis of the head, with reference to the mask being worn by a standing user and with the eyes turned ahead. However at present there is not the possibility to fit the mask or particularly the attachment members of the stjrap thereto, to the different sizes of the user head referring to the size in the lateral direction of the mask itself. Above all in case of particular anatomical conformations of the head, this can lead to a poor comfort of the mask and to a fast weariness of the scuba diver due to the constraint action exerted by the strap on the temple area. The object of the present invention is to overcome the above drawback and to allow, by simple and inexpensive means, the manufacturing of a diving mask of the type described hereinbefore substantially allowing a better overall adaptability thereof to the user face and a better comfort, above all in the case of unfavourable anatomical conditions and when it is used for extended periods. The invention achieves the above purposes by providing a mask of the type described hereinbefore wherein at least one, preferably each one of the attachment members of the strap is connected in an oscillating way to the corresponding side edge of the mask around a substantially vertical axis. Due to the above, an articulation is realized between the mask and the members attaching the strap thereto (conventionally thay are connected in a rigid way or however in a not oscillating way around said vertical axis) , which articulation allows to move away and to bring nearer to the head one or both the attachment members of the strap, assuring the greater anatomical adaptability of the mask and therefore the greater comfort . According to a very advantageous improvement, at least one, preferably each one of the two attachment members of the strap may be movably connected to the corresponding side edge of the mask body. Advantageously the mask body may be composed of a soft and confortable material, and each one of said two attachment members of the strap may be provided at a side and substantially vertical edge of a rigid frame that firmly water-tightly fasten and/or hold the peripherical edge of the at least one lens along the total peripherical edge of the at least one front opening of the mask body. Advantageously, at least one, preferably each one of the two attachment members of the strap may comprise an adjusting buckle of the strap length. It can be provided with locking means of an end of the strap in the loosing direction thereof that can be of the fixed type or of the tilting type and they can be released with a control and allowing an automatic sliding in the tightening direction or it can be of any known type. However, the guiding principle of the present invention is to be referred to masks even if without systems for adjusting the length of the strap. In this case, the attachment members of the strap can be for example welded at the opposite two ends of the strap. With reference to the observation direction of the user, each buckle member can have at least a front attaching extension to an oscillating pin oriented in a substantially vertical direction and provided at one or each side edge of the fastening frame of the lens . According to a preferred embodiment that will be disclosed in more details in the drawings, the front extension of the buckle can be composed of a hook-like member with an inner diameter substantially corresponding to, or slightly greater than the diameter of the pin. According to an improvement, said hook member can have an angular extension slightly greater than 180° such that it can be coupled by means of a snap resilient engagement, thanks to a light traction or pulling force. Thus the hook member can be respectively snap engaged or snap disengaged from the pin against a predetermined and limited coupling/uncoupling force obtained by means of a light elastic deformation of the hook member. The aim is to obtain a preventive attachment of the strap to the mask, when it is not worn, such to make easier the engagement/disengagement action. According to a further improvement, the free end of said hook member can have a end draft edge that is rounded or smoothed, such to aid the attaching/releasing action. Advantageously, the hook member can have a witdh, or a substantially vertical extension, substantially equal to, or slightly smaller than the length of the pin, means for locking the sliding of the hook member being provided along the axial extension of the pin. Thanks to the above and further arrangements that will be disclosed hereinafter, the vertical movement of the attachment point of the strap is avoided. According to a different embodiment, it is possible to realize the axial sizes of the attaching and oscillating pin and of the hook member in such a way that the hook member can be axially moved along the attaching and oscillating pin which on the contrary is axially stationary. In this case means for locking the axially sliding of the hook member are not provided but sliding limit stop means are provided at a distance one with respect to the other that is greater than the axial extension of the hook member. As in this case the attachment point of the strap to the mask can change as a further improvement it is advantageous to provide setting and/or adjusting means of the relative axial position between the hook member (5) and the attaching and oscillating pin (4) . These means can be of any type, for example friction means that in combination with the tension exerted by the strap when the mask is worn do not allow the free sliding. An embodiment can provide that the pin has a sequence of radial widenings as an external knurling, a sequence of external teeth or a sequence of rounded projections extending the external diameter such as to be perfectly the same or slightly greater than the inner diameter of the hook member within the elasticity of the material of the attaching and oscillating pin and of the hook member. All that allows that when the mask is not worn and when there is not a tension exerted by the strap the hook member can slide along the pin only by exerting some light pulling force along the pin. According to an improvement of the present invention the means for setting and/or adjusting the relative axial position between the hook member (5) and the attaching and oscillating pin (4) are constituted by the fact that the attaching and oscillating pin (4) is provided with an external thread (104) for the portion thereof along which the hook member (5) slides between the two sliding limit stop abutments (203) , while the hook member (5) has a complementary inner thread, the attaching and oscillating pin being supported freely rotatable, but axially fixed and the attaching and oscillating pin (4) being provided with a grasping extension (204) for rotatably operating it. In this case by rotating the pin that functions as a worm screw, the hook member functioning as worm screw is moved with accuracy in the desired axial position allowing an easy adjustment even when the mask is worn. According to an advantageous manufacturing feature each attaching and oscillating pin may be accessible from the side faced to the user temple or from the opposite side or from both the sides for attaching the front hook extension of the buckle. Said attaching and oscillating pin may be provided in a lateral position with respect to the side edge of the frame, but it is advantageous that it is mounted in a backward extension, with reference to the observation direction of the user, of the corresponding side edge of the fastening frame, such to not increase the overall side dimensions of the mask. According to a preferred embodiment, each attaching and oscillating pin can be secured at its opposite ends to the free ends of a pair of tongues departing from each side edge of the fastening frame of the lens and extending substantially parallel one with respect to the other in a backward direction. Said tongues may be spaced with the same measure, or slightly greater, of the corresponding size of the hook member of the buckle, such to avoid the moving thereof in the vertical direction, i.e. axial of the attaching pin thus constituting the locking members of the axial sliding or said tongues may be spaced one with respect to the other of a greater measure with respect to the axial extension of the hook member thus constituting the limit stop abutments of the axial sliding of the hook member along the attaching and oscillating pin. Advantageously, the two tongues can backwardly extend to assure a port between the pin and the attachment foot of the tongues on the fastening frame that is enough for the passage of the hook member of the buckle. As it will be apparent from the drawings, said gap advantageously allows to easily attach the buckle in the tightening direction of the strap, without being forced to oscillate the buckle towards the outside or the inside of the mask for the attachment . From a manufacture point of view, according to an embodiment, the attaching and oscillating pin may be mounted in a freely rotatable manner but axially not sliding in the two tongues due to not threaded engagement end portions in the two tongues. In this case the two tongues supporting each attaching and oscillating pin are provided with coaxial holes for engagement thereof, the top tongue being provided with a through hole with an inner thread complementar to the external thread of the attaching and oscillating pin or with a annular narrowing having an inner diameter slightly smaller than the external diameter of the thread of the attaching and oscillating pin and the hole in the lower tongue having a diameter equal to the diameter of the pin at the grooves of the external thread of the attaching and oscillating pin, while the attaching and oscillating pin has not threaded portions, i.e. smooth and with a diameter complementary to the corresponding holes in the tongues that are arranged at the ends of said attaching and oscillating pin in. such a position that when the attaching and oscillating pin is mounted in the tongues said not threaded portions of the attaching and oscillating pin are engaged in the corresponding holes of the tongues and the intermediate threaded portion of the attaching and oscillating pin extends in the intermediate area between the two faced sides of the tongues . Advantageously it is possible to provide that the attaching and oscillating pin extends beyond the top tongue projecting from the side thereof opposite to the lower tongue with a grasping extension for rotatably operate said attaching and oscillating pin. Instead of or in combination with a clamping of the attaching and oscillating pin by fitting between the tongues, said attaching and oscillating pin has a widened anti-sliding end overlapping the edge of the hole in the lower tongue from the side thereof opposite to the top tongue. Said widening may be of the fixed or movable type and can be applied and removed by means of mechanical engagement on the final end of the attaching and oscillating pin, for example by snap, screw or by friction fitting or the like. In a second embodiment that is an improvement of the first one, the buckle member can be connected to the side edge of the fastening frame in an oscillating manner simultaneously about at least two axis substantially vertical and parallel one with respect to the other, oriented and spaced one with respect to the other in the front-back direction of the mask of the user face. All this for further improving the adaptability of the mask to the anatomical conformation of the user face. The two tongues bearing each attaching and oscillating pin of the buckle can constitute a pair of backward projections of an end of a spacing member, particularly realized as a chain link. Said spacing member, at the opposite front end, can be secured on the side edge of the fastening frame in an oscillating way about a substantially vertical axis. In this way, the spacing member functions as an oscillating articulation interposed between the buckle and the frame of the mask. According to a preferred solution, the front end of the spacing member may be realized as a fork, and it can have two coaxial pins faced one towards the other departing from each of the two reciprocally faced edges of the two arms of the fork. Said pins can be snap engaged in two corresponding hollows realized on the

10 faced sides diametrally opposed of a backward extension of the side edge of the fastening frame. However the opposite solution may be provided, that is the two pins are bearing by the back extension and the hollows are provided on the reciprocally faced inner edges of the two arms of the fork. In a further alternative, the front end of the spacing member may be realized in the same way of the front extension of the buckle, that is as a hook that can be engaged/disengaged with a attaching and oscillating pin secured between the two faced edges of the two free ends of a pair of tongues backwardly extending from each side edge of the fastening frame. Independently from the embodiment, the spacing member can be anyway released from the frame of the mask for replacement and/or maintenance. However, in the case of the last embodiment, it is advantageoudsly possible the attachment of the buckle to the pin both in a direct way and by means of interposing the link spacing member, in order to obtain a better anatomical adapability, above all in the case of a user with a very big head. From the commercial point of view, the spacing member may be given as an accessory of the first embodiment of the mask. Advantageously, the spacing member may have a curved anatomically conformation with a concavity faced towards the user head, such that to best follow the sheap of the head. Even if the above solution is the preferred one, between each buckle member and the corresponding side edge of the fastening frame two or more spacing members

11 can be provided, connected in succession one with respect to the other in a oscillating manner according to oscillation axis substantially vertical and eventually, at least partly, in a disengagable way. Said spacing members may have different sizes, particularly different lengths, and they can be mounted alternately one with respect to the other between the buckle and the frame of the mask. In all the embodiments and arrangements and sub- arrangements wherein a hook member is provided engaging an attaching and oscillating pin, a further embodiment provides to replace said hook member with a circumferencly complete closed bushing. In this case the attaching and oscillating pin is mounted in the tongues in an axially insertable and disinsertable way, locking activable and disactivable means of the attaching and oscillating pin being provided in the inserted position in said tongues The activable and disactivable locking means of the attaching and oscillating pin in the inserted position in the tongues can be of any type and particularly of the type by forcing and/or shape fitting and/or by snap and/or joint and/or engagament by screwing. The advantages of the present invention clearly appear from what disclosed above, and are the fact of allow the manufacturing of a diving mask of the type disclosed hereinbefore offering a better adaptability to the user face and a greater use comfort . The conformation of the strap is anatomically more

12 conformable to the head shape, and the compression sensation is very reduced on the side parts of the head when the strap is thightened. Moreover it is possible to release very easy and fast the buckle form the mask for the replacement or maintenance. Moreover it is possible to adjust the attachment point of the strap of the mask with reference to the axis of oscillation disclosed above. Further features and improvements are object of the subclaims . The characteristics of the invention and the advantages derived therefrom will appear more clearly from the following detailed description of the annexed drawings, in which: Fig.l is a perspective view of a firt preferred embodiment of the mask according to the present invention. Fig.2 is en enlarged detail of the mask of fig.l from the rear side thereof. Fig.3 is a side view of a detail of fig.l showing the buckle attached to the frame of the mask. Fig.4 is a top view, partly in section, of a detail of fig.3. Figs . 5 to 8 are different prospective views of a variant embodiment of the mask according to figs.l to 4. Fig .9 is a prospective view of a second preferred embodiment according to the present invention. Fig. 10 is a side view of detail of fig.9 showing the buckle attached to the frame of the mask by

13 interposing a spacing member. Fig.11 is a top view of the detail of fig.10. Referring to figures, two different embodiments of a dual lens diving mask are shown according to the present invention, but the following considerations also apply to any other type of mask, particularly those having a single lens extending over both eyes . The mask comprises a mask body 1 made of a soft and comfortable material, particularly rubber or the like. Said body 1 has a pair of front openings around the eye region, and each one is closed by a transparent member that generally is a lens 2. The lenses 2 are secured along the edges of the respective front openings of the mask body 1 by means of at least a water-tight fastening frame 3, which is made of a rigid and light material, particularly of plastic. The frame at each side and vertical edge 103 has a pair of tongues 203 extending backwards of the mask and parallely one with respect to the other. The two tongues 203 overhangingly bear a pin 4 that can be integral realized with the tongues 203 and the frame 3, or it can be separately realized and secured on the tongues 203 in any known manner, for example by axially inserting it through two coincident coaxial holes 403, 503 in said two tongues 203. Said pin 4 extends in a substantially vertical direction and at a predetermined distance from the back surface of the side edge 103 of the frame 3. Each pin 4 serves as an oscillating and attaching member of a hook member 5 which is an extension in a substantially front direction of a locking and adjusting buckle 6 of an end

14 of a strap 7 for fastening the mask against the user face. However as outlined hereinbefore, the buckle 6 may be omitted and the hook member 5 can be integrally realized as an extension of an end of the strap 7. In a variant embodiment in figures 3 and 4, the hook member 5 has a width, or an extension in the substantially vertical direction, i.e. in the axial direction of the pin 4, substantially equal to, or slightly smaller than the length of the pin 4, i.e. than the reciprocal distance between the two back tongues 203. In this case the hook member 5 can make no axial movements along the pin 4, the two tongues 203 being two locking abutments of said sliding. Therefore the attachment point of the strap to the mask is axially fixed with respect to the sides 103 of the mask, while the buckle 6 remains oscillating about the pin 4 that is parallel or substantially parallel to said sides 103. In this case the hook member 5 has an inside diameter substantially corresponding to, or slightly greater, with respect to the diameter of the pin 4 in such a way to allow a free oscillation without friction. The backwardly spacing of the pin 4 with respect to the side edge 103 of the frame 3 is such to guarantee a port that is enough for the passage of the hook member 5. As said above, this expedient allows to advantageously attach the hook member 5 by easily exerting a traction on the strap 7 in a substantially backward direction. Referring to figures 1 and 2, the variant

15 embodiment shown provides that the tongues 203 are spaced at a greater extent with respect to the axial extension of the hook member 5 and comprise a portion of the attaching and oscillating pin 4 therebetween correspondingly long. In this case the hook member 5 can slide along the pin 4, allowing an adjusting of the attachment point in the axial direction of the pin. Different constructive embodiments are possible and two alternative embodiments will be disclosed hereinafter respectively shown in figures 1, 2 and 5 to 8, said embodiments being not to be intended limitative of the general inventive concept . Referring to figure 1 and 2, the pin 4 has a range of annular widenings 504 spaced one with respect to the other by annular grooves and which widenings have a diameter equal to or slightly greater than the inside diameter of the hook member 5. Preferably said annular widenings have a shell external surface having a rounded shape in the axial direction, so as to reduce the contact surface with the inner wall of the hook member 5. The hook itself and/or the material of the pin or of the annular widenings 504 are composed of an elastic material. Thus it is generated a preventive locking force in position of the hook member 5 on the pin 4 that can be overcome with respect to the axial movement of the hook member 5 by a small force that can be manually exerted. When the mask is worn the tension of the strap exerted on the hook member or members provides to increase the friction engagement and the corresponding axial locking of the hook member 5 on the

16 attaching and oscillating pin 4. Obviously such preventive locking may be obtained even by another way, for example with a knurled or notched surface of the pin or with other arrangements of lenticular and rounded projections. On the contrary, in the variant of figures 5 to 8, the attaching and oscillating pin 4 is provided with an external thread 104, at least on the portion thereof between the two facing sides of the tongues 203. The hook member 5 is provided with a complementary internal thread cooperating with the external thread of the attaching and oscillating pin 4. Said pin 4 is also supported freely rotatable in the tongues 203 and advantageously it projects with a grasping extension 204 from the top side of the top tongue 203, i.e. from the side thereof opposed to the lower tongue 203. By this means by rotating the attaching and oscillating pin 4 it functions as a worm screw, whereas the hook member . functions as a nut screw or a thread bushing and it slides along the pin 4 when it is rotated. The rotation in one direction or in the opposite one provides the traverse in an axial direction of the pin and in the opposite one. The attaching and oscillating pin 4 is mounted freely rotatable in the tongues 203, but it is retained against an axial movement. It is possible to obtain that by firmly, axially locking the attaching and oscillating pin 4 in two holes 403, 503 coaxial one with respect to the other and provided in the two tongues 203, or by providing a movable engagement of

17 the pin 4 to the tongues 203 that allows to lock axially said pin but even to unlock it for its drawing. This is particularly advantageous for the shown embodiment that instead of an hook member 5 it provides a bushing circumferencly closed on itself. It is possible to provide various coupling modes of the attaching and oscillating pin 4 to the tongues 203. For example, the two tongues 203 can be provided with engaging coaxial holes of the attaching and oscillating pin 4, the top tongue being provided with a through hole 403 with an inner thread complementary to the external thread of the attaching and oscillating pin 4 or with an annular narrowing having the internal diameter slightly smaller than the external thread of the attaching and oscillating pin 4. Thus, the pin 4 is passed through the hole 403 in the top tongue by screwing on the inner thread of the hole 403 and/or partial screwing and elastic fitting at the annular narrowing and it remains locked with respect to an axial disinsertion from the hole. The hole 503 provided in the lower tongue 203 has a diameter that is equal to the diameter of the pin 4 at the grooves of the external thread of the attaching and oscillating pin 4. The attaching and oscillating pin 4 has not threaded portions, i.e. smooth and with a diameter complementar to the corresponding holes 403, 503 in the tongues 203 that are arranged at the ends of said attaching and oscillating pin 4 in a position such that in the mounted condition of the attaching and

18 oscillating pin 4 in the tongues 203 said not threaded portions of the attaching and oscillating pin 4 are engaged in the corresponding holes 403, 503 of the tongues 203 and the intermediate threaded portion of the attaching and oscillating pin 4 extends in the intermediate area between the two facing sides of the tongues 203. The attaching and oscillating pin 4 extends beyond the top tongue 203 projecting from the side thereof opposed to the lower tongue 203 with a grasping extension 204 for the rotation control of said attaching and oscillating pin 4. Moreover, instead of or in combination with the above, the attaching and oscillating pin 4 has an axial anti-sliding widened end overlapping the edge of the hole 503 in the lower tongue from the side thereof opposite to the top tongue 203. Said widening is of the fixed or movable type and it can be applied and removed by mechanical engagement on the final end of the attaching and oscillating pin 4, for example by snap, screw or by friction fitting or the like. As it appears clearly in the figures, said hook member 5 has an angular extension slightly greater than 180°, such to allow the attachment and the relase with a limited effort by a light elastic deformation of the hook member 5. Thus between the hook member 5 and the pin 4 is obtained a coupling that is not so much strong, but that is enogh to ensure a preventive coupling of the mask when it is not worn, while, in use, the elastic traction of the strap keeps the hook

19 member 5 firmly in position. Advantageously, the free end 105 of the hook member 5 has a rounded end draft edge such to aid the attachment action. The shown buckle 6 is a conventional buckle composed of a bearing member 106, a roll 206 around which one of the free ends of the strap 7 is returned, and a lever 306 elastically loaded in the direction of the roll 206 and provided with a tooth for cooperating with one of the transversal teeth 107 provided on the facing surface of the strap 7 for the locking thereof. The lifting of the outwards oscillating lever 306 allows the release of the strap 7 and its substantially automatic loosening or its thightening by means of a rearwardly traction exerted on the free end of the strap 7. The shown buckle 6 is only by way of example, the use of any other type of buckle being possible. As it clearly appears in the figures, the possible free oscillation of the buckle 6, particularly outwards, allows the strap 7 to better follow the shape of the head, particularly in the temple region. It is to be noted that the hook member 5 may be replaced by a completely circumferencely closed bushing, while the attaching and oscillating pin 4 is mounted in the tongues 203 in an axially insertable and disinsertable way, locking activable and disactivable means being provided of the attaching and oscillating pin 4 in the inserted position in said tongues 203 in any of the above embodiments . The activable and disactivable locking means of the attaching and oscillating pin 4 in the inserted

20 position in the tongues 203 are of the type by forcing and/or shape fitting and/or by snap and/or joint and/or engagament by screwing. With reference to the second embodiment, the front extension hook member 5 of the buckle 6 is not directly attached at the side edge 103 of the frame 3 as in the first embodiment, but it is attached to the back end of a spacing member 8, that is oscillating too, such that the buckle can oscillate freely and simultaneously around two axis substantially vertical and parallel one with respect to the other, that are oriented and spaced one with respect to the other in the front-back direction of the mask. Said spacing member 8 has a central lightening slot 108 that makes it similar to a link chain both in for the aspect and the function. Said spacing member 8 has a further back slot 308 at the back edge 4' having a rounded shape and it functions as a attaching pin 4' of the front extension hook member 5 of the buckle 6. The front end opposite to the spacing member 8 is realized as a fork, and it has two coaxial pins 208 faced one towards the other departing each one from each of the two reciprocally faced edges of the two arms 408 of the fork. Said two pins 208 can be snap engaged in two corresponding hollows made on the faced sides diametrally opposite of a backward extension 303 of the side edge 103 of the fastening frame 3. The spacing member 8 function as an articulation member and it allows to better follow the shape of the head, particularly in the temple region.

21 Naturally the invention is not limited by the above and disclosed embodiments, but it can be widely varied, or it can find application in different fields different from the one disclosed, for example in the manufacturing of swimming glasses, without departing from the guiding principle disclosed above and claimed belo .

22

Claims

1. A diving and swimming mask, comprising a mask body (1) provided with at least a front opening around the eye region, which opening is closed by a transparent member, particularly a lens (2) and there being provided, at each side edge of the mask body (1) , an attaching member (5, 6) of an end of a strap (7) for fastening the mask against the user face, characterized in that at least one, preferably each one of said two attaching members (5, 6) is connected to the corresponding side edge of the mask body (1) in an oscillating way about a substantially vertical axis, with reference to the mask being worn by a standing user and with the eyes turned ahead.

2. A mask according to claim 1, characterized in that at least one, preferably each one of the two attaching members (5,6) of the strap (7) is connected to the corresponding side edge of the mask body (1) in a movable way.

3. A mask according to claims 1 or 2, characterized in that the attaching member of the strap to the mask has snap coupling and uncoupling means with cooperating, complementary coupling and uncoupling means associated to the mask.

4. A mask according to one or more of the preceding claims, characterized in that the cooperating coupling and uncoupling means of the attaching member and of the mask are coupling/uncoupling means by means

23 of elastic fitting.

5. A mask according to one or more of the preceding claims, characterized in that the mask body (1) is composed of a soft material and each one of said two attaching members (5,6) of the strap (7) is provided at a side and substantially vertical edge (103) of a rigid frame (3) firmly water-tightly fastening and/or holding the peripherical edge of the at least one lens along the total peripherical edge of the at least one front opening of the mask body (1) .

6. A mask according to one or more of the preceding claims, characterized in that at least one, preferably each one of the two attaching members of the strap (7) comprises a buckle (6) , which can be provided with means for locking an end of the strap (7) of the fixed or tilting type (306) and allowing the automatic movement to automatically release the strap (7) in the loosing and/or tightening direction.

7. A mask according to one or more of the preceding claims, characterized in that each buckle member (6) has at least a front extension (5) with reference to the observation direction of the user, for attaching to an oscillating pin (4) oriented in a substantially vertical direction and provided at each side edge of the fastening frame (3) of the lens (2) .

8. A mask according to one or more of the preceding claims, characterized in that the front extension of the buckle is composed of a hook-like member (5) with the inner diameter substantially corresponding to, or slightly greater, than the

24 diameter of the pin (4) .

9. A mask according to one or more of the preceding claims, characterized in that said hook member (5) has an angular extension slightly greater than 180° such that, due to a traction or pulling force, it can be snap attached or snap released from the pin (4) against a predetermined coupling/uncoupling force obtained by means of a light resilient deformation of the hook member (5) .

10. A mask according to one or more of the preceding claims, characterized in that the free, end (105) of said hook member (5) has an end draft edge that is rounded or smoothed.

11. A mask according to one or more of the preceding claims, characterized in that said hook member (5) has a width, or an extension in a substantially vertical direction, i.e. axial of the attaching and oscillating pin (4) , substantially equal to, or slightly smaller, than the length of the pin (4) , locking engagements (203) being provided of the axial sliding of the hook member (5) along the attaching and oscillating pin (4) .

12. A mask according to one or more of the preceding claims 1 to 10, characterized in that said hook member (5) has a width, or an extension in a substantially vertical direction, i.e. axial of the attaching and oscillating pin (4) , that is smaller than the length of the attaching and oscillating pin (4) , the hook member (5) being sliding in the axial direction along the attaching and oscillating pin (4)

25 between two limit stop abutments (203) and means for setting and/or adjusting the relative axial position between the hook member (5) and the attaching and oscillating pin (4) being provided 13. A mask according to claim 12, characterized in that the attaching and oscillating pin (4) has an external thread (104) for the portion thereof along which the hook member (5) slides between the two sliding limit stop abutments (203) , while the hook member (5) has a complementar inner thread, the attaching and oscillating pin (4) being supported freely rotable, but axially fixed and the attaching and oscillating pin (4) being provided with a grasping extension (204) for rotatably operate it. 14. A mask according to one or more of the preceding claims, characterized in that each attaching and oscillating pin (4) is accessible from the side faced towards the user temple or from the opposite side or from both the sides for the attachment of the front hook extension (5) of the buckle (6) . 15. A mask according to one or more of the preceding claims, characterized in that said attaching and oscillating pin (4) is mounted in a backward extension, with reference to the observation direction of the user, of the corresponding side edge (103) of the fastening frame (3) . 16. A mask according to one or more of the preceding claims, characterized in that each attaching and oscillating pin (4) is secured at its opposite ends to the free ends of a pair of tongues (203) departing

26 from each side edge (103) of the fastening frame (3) of the lens (2) and extending substantially parallel one with respect to the other in the backward direction, with reference to the observation direction of the user, which tongues (203) are spaced in the axial direction of the attaching and oscillating pin (4) in the same manner, or slightly greater, of the corresponding size of the hook member (5) of the buckle (6) thus constituting the locking members of the axial sliding of the hook member (5) or the said tongues

(203) can be spaced one with respect to the other to a much greater extent than the axial extension of the hook member (5) thus costituing the limit stop abutments of the axial sliding of the hook member (5) along the attaching and oscillating pin (4) . 17. A mask according to one or more of the preceding claims, chatacterized in that the two tongues (203) extend rearwardly such to assure between the pin (4) and the attachment foot of the tongues (203) on the fastening frame (203) a port that is enough for the passage of the hook member (5) of the buckle (6) . 18. A mask according to one or more of the preceding claims, characterized in that the attaching and oscillating pin (4) is mounted in a freely rotatable manner but not axially sliding in the two tongues (203) due to not threaded end engagements portions in the two said tongues . 19. A mask according to one or more of the preceding claims, characterized in that the two tongues (203) are provided with coaxial holes for engagement of

27 the attaching and oscillating pin (4) , the top tongue being provided with a through hole (403) with an inner thread complementar to the external thread of the attaching and oscillating pin (4) or with an annular narrowing with an inner diameter slightly smaller than the external diameter of the thread of the attaching and oscillating pin (4) and the hole (503) in the lower tongue (203) having a diameter equal to the diameter of the pin (4) at the grooves of the external thread of the attaching and oscillating pin (4) , while the attaching and oscillating pin (4) has not threaded portions, i.e. smooth and having a diameter complementary to the corresponding holes (403, 503) in the tongues (203) that are arranged at the ends of said attaching and oscillating pin (4) in such a position that when the attaching and oscillating pin (4) is mounted in the tongues (203) said not threaded portions of the attaching and oscillating pin (4) are engaged in the corresponding holes (403, 503) of the tongues (203) and the intermediate threaded portion of the attaching and oscillating pin (4) extends in the intermediate area between the two faced sides of the tongues (203) . 20. A mask according to one ore more of the preceding claims, characterized in that the attaching and oscillating pin (4) extends beyond the top tongue

(203) projecting from the side thereof opposite to the lower tongue (203) with a grasping extension (204) for the rotation control of said attaching and oscillating pin (4) . 21. A mask according to one or more of the

28 preceding claims, characterized in that the attaching and oscillating pin (4) has an widened axial anti- sliding end overlapping the edge of the hole (503) in the lower tongue from the side thereof opposite to the top tongue (203) . 22. A mask according to claim 21, characterized in that said widening is of the movable or fixed type and it can be applied and removed by means of mechanical engagement on the final end of the attaching and oscillating pin (4) , for example by snap, screw or by f iction fitting or the like . 23. A mask according to one or more of the preceding claims, characterized in that the buckle member (6) is connected in a oscillating way to the side edge (103) of the fastening frame (3) simultaneously about at least two axis substantially vertical and parallel one with respect to the other, oriented and spaced one with respect to the other in the front-back direction of the mask or of the user face. 24. A mask according to one or more of the preceding claims, characterized in that the two tongues bearing each attaching and oscillating pin (4') of the buckle (6) constitute a pair of back projections of an end of a spacing member (8) , particularly realized as a link chain that, at the opposite front end, is secured on the side edge (103) of the fastening frame (3) in an oscillating manner about a substantially vertical axis. 25. A mask according to one or more of the preceding claims, charatcterized in that the front end

29 of the spacing member (8) is realized as a fork, and it has two coaxial pins (208) faced one towards the other departing from each of the two reciprocally faced edges of the two arms (408) of the fork and they can be snap engaged in two corresponding grooves realized on the faced sides diametrally opposed of a back extension (303) of the side edge (103) of the fastening frame (3), or viceversa. 26. A mask according to one or more of the preceding claims, characterized in that the front end of the spacing member (8) is realized like an hook that can be engaged/disengaged with a attaching and oscillating pin (4) secured between the two faced edges of the two free ends of a pair of tongues (203) backwardly extending form each side edge (103) of the fastening frame (3) . 27. A mask according to one or more of the preceding claims, characterized in that the spacing member (8) has a anatomically curved configuration with concavities faced towards the user head. 28. A mask according to one or more of the preceding claims, characterized in that between each buckle member (6) and the corresponding side edge (103) of the fastening frame (3) two or more spacing members (8) are provided, connected in succession in an oscillating manner according to substantially vertical oscillation axis . 29. A mask according to one or more of the preceding claims, characterized in that the two or more spacing members (9) are connected one with the other,

30 at least partially, in a disengagable manner. 30. A mask according to one or more of the preceding claims, characterized in that it has a range of spacing members (8) of different sizes, particularly of different length, which can be mounted alternatively one with respect to the other between the buckle (6) and the frame (3) of the mask. 31. A mask according to one or more of the preceding claims, characterized in that the hook member (5) is replaced by a complete circumferencly closed bushing, while the attaching and oscillating pin (4) is mounted in the tongues (203) in an axially insertable and disinsertable way, locking activable and disactivable means of the attaching and oscillating pin (4) being provided in the inserted position in said tongues (203) . 32. A mask according to claim 31, characterized in that the activable and disactivable locking means of the attaching and oscillating pin (4) in the inserted position in the tongues (203) are of the type by forcing and/or shape fitting and/or by snap and/or joint and/or engaga ent by screwing. 33. A diving and swimming mask, comprising a mask body (1) provided with at least a front opening around the eye region, which opening is closed by a transparent member, particularly a lens (2) , and there being provided at each side edge of the mask body (1) an attaching member (5,6) of an end of a strap (7) for fastening the mask against the user face, characterized in that at least one, preferably each one of said two

31 attaching members (5,6) is connected to the corresponding side edge of the mask body (1) , with reference to the mask being worn by a standing user and with its eyes turned ahead, characterized in that at laest one, or both the attaching members (5,6) of the strap (7) are sliding engaged parallely along the corresponding side edge (103) of the mask (3) on sliding guides associated to said side edges (103) . 34. A mask according to claim 33, characterized in that it has one or more of the characteristics according to one or more of claims 1 to 32.

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