Mask for surface snorkeling

Abstract

The mask for surface snorkeling comprises a rigid frame (2), a transparent visor (3), a soft face mask (4) applicable in an airtight way to the face of the user and having a membrane (7) which delimits an upper viewing chamber (8) being shaped to contain the eyes of the user and a lower breathing chamber (9) being shaped to contain the nose and mouth of the user, and a breathing circuit (5) connected to the lower chamber (9), a ventilation circuit of the upper chamber (8) independent and separated from the breathing circuit (5) also being provided.

Claims

1. A mask (1) for surface snorkeling comprising: a rigid frame (2), a transparent visor (3), a soft face mask (4) applicable in an airtight way to a face of a user and having a membrane (7) which delimits an upper viewing chamber (8) shaped to contain eyes of a user and a lower breathing chamber (9) shaped to contain a nose and mouth of a user, a breathing circuit (5) connected to said lower breathing chamber (9), a ventilation circuit (10) of said upper viewing chamber (8), said breathing circuit (5) comprising a first connecting conduit (11) connecting said lower breathing chamber (9) to an atmospheric environment external to the mask (1), said ventilation circuit (10) comprising a second connecting conduit (12) connecting said upper viewing chamber (8) to the atmospheric environment external to the mask (1), said first and said second connecting conduits (11, 12) being equipped with floating shutter means (13a, 13b), where said ventilation circuit (10) of said upper viewing chamber (8) is independent and separated from said breathing circuit (5) so that during surface swimming, as the floating shutter means (13a, 13b) remains open, the first connecting conduit (11) maintains the lower breathing chamber (9) in direct communication with the external atmospheric environment to allow breathing that takes place through the first connecting conduit (11) both for breathing in and for breathing out and said second connecting conduit (12) maintains in direct communication the upper viewing chamber (8) with the external atmospheric environment to prevent fogging of the visor (3).

2. A mask (1) for surface snorkeling comprising: a rigid frame (2), a transparent visor (3), a soft face mask (4) applicable in an airtight way to a face of a user and having a membrane (7) which delimits an upper viewing chamber (8) shaped to contain eyes of a user and a lower breathing chamber (9) shaped to contain a nose and mouth of a user, a breathing circuit (5) connected to said lower breathing chamber (9), and a ventilation circuit (10) of said upper viewing chamber (8), wherein: said breathing circuit (5) comprises a first connecting conduit (11) connecting said lower breathing chamber (9) directly to an atmospheric environment external to the mask (1), configured to allow breathing in and breathing out through the first connecting conduit (11), said ventilation circuit (10) comprises a second connecting conduit (12) connecting said upper viewing chamber (8) directly to the atmospheric environment external to the mask (1), configured to allow air flow in and out to prevent fogging of the transparent visor (3), said ventilation circuit (10) of said upper viewing chamber (8) is independent and separate from said breathing circuit (5) of said lower breathing chamber (9), where there is no air circuit crossing between the upper viewing chamber (8) and the lower breathing chamber (9), nor between the ventilation circuit (10) and the breathing circuit (5).

3. A mask (1) for surface snorkeling comprising: a rigid frame (2), a transparent visor (3), a soft face mask (4) applicable in an airtight way to a face of a user and having a membrane (7) which delimits an upper viewing chamber (8), shaped to contain eyes of a user, and a lower breathing chamber (9), shaped to contain a nose and mouth of a user, and a breathing circuit (5) connected to said lower breathing chamber (9), wherein: the mask (1) comprises a ventilation circuit of said upper viewing chamber (8) independent and separated from said breathing circuit (5); said transparent visor (3) has a front wall (18) and a lateral wall (19) which extends perimeterally at a rear of said front wall (18); said face mask (4) has a perimetral lip (26) housed within a groove (25) of the lateral wall (19); said perimetral lip (26) has a perimetral groove (28) to house said rigid frame (2); said rigid frame (2) comprises a clamping profile (2a) housed in said perimetral groove (28) of said perimetral lip (26); and said clamping profile (2a) comprises a connection fitting (2b) between a proximal part (11a, 12a) and a distal part (11b, 12b) of first and second connecting conduits (11, 12).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further characteristics and advantages will become more apparent from the following detailed description of an embodiment of the surface snorkeling mask according to the invention, illustrated by way of non-limiting example in the accompanying figures, wherein:

(2) FIG. 1 shows an exploded view of the mask;

(3) FIG. 2 shows a front perspective view of the mask;

(4) FIG. 3 shows a lateral elevation view of the mask;

(5) FIG. 4 shows a front view of the mask;

(6) FIG. 5 shows a partially sectioned front view of the mask;

(7) FIG. 6 shows a cross section of the breathing conduit, taken along line 6-6 of figure; and

(8) FIG. 7 shows the face mask of the mask.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

(9) With reference to the figures, a snorkeling mask 1 is shown, comprising a rigid frame 2, a transparent visor 3, a soft face mask 4 applicable in an airtight way to the face of the user, and a breathing circuit 5.

(10) The face mask 4 has a closed ring-shaped band 6 adaptable to the oval of the user's face and a membrane 7, shaped in particular with an overturned V shape, which with the band 6 and the visor 3 delimits an upper viewing chamber 8 shaped to contain the eyes of the user and a lower breathing chamber 9 shaped to contain the nose and the mouth of the user.

(11) The breathing circuit 5 is connected to the lower chamber 9. Advantageously the mask 1 also has a ventilation circuit 10 for ventilating the upper chamber 8 independent and separated from the breathing circuit 5.

(12) The breathing circuit 5 comprises a first connecting conduit 11 for connecting the lower chamber 9 to the atmospheric environment external to the mask 1.

(13) The ventilation circuit 10 comprises in turn a second connecting conduit 12 for connecting the upper chamber 8 to the atmospheric environment external to the mask 1.

(14) The first conduit 11 and the second conduit 12 are equipped with floating shutter means for example of the type indicated in the figure with 13a, 13b. Advantageously, along its whole length the first conduit 11 has a free passage section 14 when the shutter means 13a, 13b are in the open position thus establishing a direct air connection of the lower chamber 9 with the atmospheric environment external to the mask 1. Advantageously, along its whole length the second conduit 12 also has a free passage section 15 when the shutter means 13a, 13b are in the open position thus establishing a direct air connection of the upper chamber 8 with the atmospheric environment external to the mask 1.

(15) The second conduit 12 comprises a proximal part 12a that leads into the upper chamber 8 and a distal part 12b from the upper chamber 12.

(16) The proximal part 12a of the second conduit 12 is made as a single piece with the visor 3 while the distal part 12b of the second conduit 12 is removably engaged with the proximal part 12a of the second conduit 12 and supports the shutter means 13a, 13b.

(17) The first conduit 11 also comprises a proximal part 11a that leads into the lower chamber 9 and a distal part 11b from the lower chamber 11.

(18) The proximal part 11a of the first conduit 11 comprises opposite grooves 16, 17 of the visor 3 and the face mask 4, while the distal part 11b of the first conduit 11 is removably engaged with the proximal part 11a of the first conduit 11 and supports the shutter means 13a, 13b.

(19) In the illustrated case the first conduit 11 and the second conduit 12 are positioned laterally with respect to a central axis of symmetry of the visor 3 and are juxtaposed.

(20) In particular, the distal part 11b of the first conduit 11 and the distal part 12b of the second conduit 12 are juxtaposed and share the shutter means that comprise a single shutter 13a operating both on the first conduit 11 and on the second conduit 12 and a single float 13b for activating the shutter 13a.

(21) In a variant of the invention not shown, the first conduit 11 and the second conduit are in a remote position with respect to one another and in that case the shutter means comprise a shutter and a float dedicated to the first conduit 11 and a shutter and a float dedicated to the second conduit 12.

(22) The position of the first conduit 11 and of the second conduit 12 may vary, for example the first conduit 11 and the second conduit 12 may be positioned at a central axis of symmetry of the visor 3 or laterally but on the opposite side with respect to a central axis of symmetry of the visor 3.

(23) The visor 3 has in detail a front wall 18 and a lateral wall 19 that extends perimeterally and at the rear of the front wall 18.

(24) The front wall 18 has a flat portion 18a that in cooperation with the band 6 and the membrane 7 delimits the upper chamber 8, and a portion 18b, concave on the side facing the face of the user during use which, still in cooperation with the band 6 and the membrane 7 delimits the lower chamber 9.

(25) The proximal portion 12a of the second conduit 12 in particular is fully external to the visor 3 and leads into a through hole 21 in the lateral wall 19 of the visor 3 that opens onto the upper chamber 8. The proximal portion 11a of the first conduit 11 has a stretch 22 internal to the visor 3 defined by the grooves 16, 17 and a stretch 23 external to the visor 3.

(26) The stretch 22 internal to the visor 3, which leads into the lower chamber 9, and the stretch 23 external to the visor 3 are connected by a through hole 24 in the lateral wall 19 of the visor 3.

(27) The groove 17 in the visor 3 is delimited by a partition 20 that extends at the rear from the flat portion 18a of the front wall 18.

(28) The partition 20 has a plate-shaped longitudinal body oriented orthogonally to the flat portion 18a.

(29) The partition 20 extends with a first part 20a thereof along a perimetral stretch of the flat portion 18a of the front wall 18 and with a second part 20b thereof beyond the flat portion 18a of the front wall 18.

(30) The first part 20a of the partition 20 delimits the groove 17 in cooperation with the stretch of the lateral wall 19 which it faces.

(31) The second part 20b of the partition 20, which intersects the lateral wall 19 between the through holes 21, 24, separates the proximal portion 12a of the second conduit 12 from the stretch 23 external to the visor 3 of the proximal portion 11a of the first conduit 11.

(32) Along the external perimetral edge of the lateral wall 19 of the visor 3 a groove 25 is formed for housing a perimetral lip 26 of the face mask 4.

(33) The perimetral lip 26 of the face mask 4 has, on the opposite side to the lateral wall 19 of the visor 3, a perimetral groove 28 for housing the frame 2.

(34) The frame 2 in particular comprises a clamping profile 2a housed in the perimetral groove 28 of the perimetral lip 26 of the face mask 4, a connection fitting 2b between each proximal part 11a, 12a and the corresponding distal part 11b, 12b of the first conduit 11 and of the second conduit 12, and of the attachments 2c for elastic bands (not shown) for retaining the mask 1 on the user's face.

(35) To improve comfort, a system is also provided for draining the water which during use of the mask 1 can penetrate into the visor 3, both into the upper chamber 8 and into the lower chamber 9.

(36) The water drainage system comprises a check valve 29 on the visor 3 in the bottom part of the lower chamber 9 and one or more check valves 30 on the membrane 7, for example two check valves 30 positioned symmetrically on opposite sides of the membrane 7.

(37) The check valve 29 allows the drainage of the water from the lower chamber 9 to the atmospheric environment external to the mask 1, while the valves 30 allow the drainage of water from the upper chamber 8 to the lower chamber 9.

(38) The check valves 29, 30 comprise a membrane shutter that bends under the action of the weight of the water.

(39) The operation of the mask 1 is briefly as follows.

(40) During surface swimming the shutter 13a remains open, so that the first conduit 11 maintains the lower chamber 9 in direct communication with the external atmospheric environment to allow breathing that takes place through the first conduit 11 both for breathing in and for breathing out.

(41) Furthermore, as the shutter 13a remains open during surface swimming, the second conduit 12 maintains in direct communication the upper chamber 8 with the external atmospheric environment to prevent the fogging of the visor 3 precisely in the area in front of the user's eyes.

(42) When the user's head is occasionally submerged, the shutter 13a pushed by the float 13b closes the first conduit 11 and the second conduit 12 hence preventing the access of water into the lower chamber 9 and into the upper chamber 8 of the visor 3.

(43) The mask for surface snorkeling as conceived herein is susceptible of many modifications and variants, all falling within the scope of the inventive concept; furthermore, all the details are replaceable by technically equivalent elements.