Full face diving mask

Abstract

A diving mask having a rigid frame with a front perimeter edge and a rear perimeter edge. The frame provides an upper portion and a lower portion connected by first and second lateral portions. The mask also includes a visor of a transparent material and fixed to the frame, and an inhalation duct, or snorkel. Inside the frame a face member made of a soft and flexible material is arranged in contact with the user's face. A partition member divides the volume between the visor and the face member in an upper chamber pneumatically connected to the inhalation duct, or snorkel, through an opening, and in a lower chamber arranged to house the nose and the mouth of the user. A discharge duct pneumatically connects the lower chamber with an exit mouth.

Claims

1. A diving mask comprising: a rigid frame having a front perimeter edge and a rear perimeter edge, said rigid frame provided with an upper portion, a lower portion, and a first and a second lateral portion arranged to connect said upper portion to said lower portion; a visor made of a transparent material and engaged to said rigid frame, said visor being configured in such a way to protrude beyond said front perimeter edge of said rigid frame; an inhalation duct, or snorkel, integral to said upper portion of said rigid frame, said inhalation duct or snorkel being provided with a longitudinal passage; a face member made of a flexible material configured to be engaged inside of said rigid frame, and having a rear edge configured to be arranged in contact with a user's face, said face member comprising a partition member configured to divide a volume between said visor and said face member in an upper chamber pneumatically connected to said inhalation duct, or snorkel, through an opening, and in a lower chamber arranged to house the nose and the mouth of the user; a one-way valve arranged to pneumatically connect said upper chamber with said lower chamber and configured to allow air to pass from said upper chamber to said lower chamber during an inspiration of the user, and to impede, instead, the air to pass in the opposite direction, that means from said lower chamber to said upper chamber during an expiration of the user; an exit mouth for the exit of the air breathed out by the user; a discharge duct configured to pneumatically connect said lower chamber with said exit mouth; wherein said exit mouth is provided at said rear perimeter edge of said upper portion of said rigid frame.

2. The diving mask, according to claim 1, wherein said discharge duct is provided in said visor.

3. The diving mask, according to claim 2, wherein said face member provides an outlet opening pneumatically connected with said exit mouth through said discharge duct.

4. The diving mask, according to claim 1, wherein an exit hole is associated with a deformable membrane configured to move from a closing configuration of said exit hole to an opening configuration of the exit hole, in order to allow the air breathed out to flow out said discharge duct, and to impede, instead, air, or water, to flow in the opposite direction into the discharge duct.

5. The diving mask, according to claim 1, wherein, at said upper portion, first and second exit mouths are arranged at opposite sides with respect to said inhalation duct, or snorkel.

6. The diving mask, according to claim 1, wherein said rigid frame, at said upper portion, provides a deflector body provided with said exit mouth, and configured to deviate the flow of air breathed out by the user from a stream direction to a discharge direction inclined by a predetermined angle with respect to said stream direction.

7. The diving mask, according to claim 6, wherein said deflector body is configured to removably engage a main body of said rigid frame.

8. The diving mask, according to claim 7, wherein said main body of said rigid frame provides an exit hole pneumatically connected with said lower chamber through said discharge duct and with said exit mouth through said deflector body.

9. The diving mask, according to claim 6, wherein said deflector body provides a first wall arranged in front of an exit hole of said rigid frame, and a second wall orthogonal to said discharge direction, said exit mouth being provided at said second wall.

10. The diving mask, according to claim 6, wherein said deflector body and said rigid frame provide mutual engagement members configured to removably move from a mutual engagement configuration to a disengagement configuration.

11. The diving mask, according to claim 6, wherein said deflector body provides engagement portions configured to engage an engagement member of said visor, and an engagement member of said rigid frame.

12. The diving mask, according to claim 1, wherein said visor and said rigid frame provide tightening portions configured to mutually engage and to tighten between them an engagement portion of said face member.

13. The diving mask, according to claim 12, wherein said tightening portion of said rigid frame and said engagement portion of said face member are flat-shaped.

14. The diving mask, according to claim 12, wherein said visor, at said tightening portion, and said face member, at said engagement portion, provide a connection hole arranged coaxially to an exit hole provided at said tightening portion of said visor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will now be shown with the following description of its exemplary embodiments, exemplifying but not limitative, with reference to the attached drawings in which:

(2) FIG. 1 diagrammatically shows a side elevation perspective view of a diving mask according to the invention;

(3) FIG. 2A diagrammatically shows a longitudinal section of the diving mask of FIG. 1 in the engagement zone between snorkel, frame and visor;

(4) FIG. 2B shows a rear view of the diving mask of FIG. 1;

(5) FIG. 3 shows a cross section of a portion of a diving mask, according to an embodiment of the invention, in order to highlight some constructive components;

(6) FIG. 4 shows a rear perspective view of the mask of FIG. 2B;

(7) FIG. 5 shows an exploded perspective view of the main components of another embodiment of the diving mask according to the invention.

DETAILED DESCRIPTION OF SOME EXEMPLARY EMBODIMENTS OF THE INVENTION

(8) As diagrammatically shown in FIG. 1, a diving mask 1, according to the invention, in particular of the type known as “full face” diving mask, comprises a rigid frame 10, substantially oblong-shaped, having a front perimeter edge 11a and a rear perimeter edge 11b. The rigid frame 10 provides, in particular, an upper portion 12 and a lower portion 13 connected by a first and a second lateral portion 14a and 14b. The mask 1 provides, furthermore, a visor 20 made of a transparent material and fixed to the rigid frame 10. In particular, the visor 20 is configured in such a way to protrude, in use, beyond the front edge 11a of the rigid frame 10. The mask 1 provides, furthermore, an inhalation duct, or snorkel, 30 which is integral, in use, to the upper portion 12 of rigid frame 10. More precisely, the inhalation duct 30 provides a longitudinal passage 35 through which, in use, a flow of air breathed in by the user flows. Inside of the rigid frame 10 a face member 40, which is made of a soft and flexible material, is fixed, and which has a rear edge 41 configured to be arranged, in use, in contact with the user's face. The face member 40 comprises, in particular, a partition member 43 configured to divide the volume between the visor 20 and the face member 40, in an upper chamber 21, which is pneumatically connected to the longitudinal passage 35 of the inhalation duct, or snorkel 30, and in a lower chamber 22, which is arranged to house, in use, the nose and the mouth of the user. In particular, the snorkel 30 provides at least an inlet opening 31, at a first extremity portion 32 through which the air enters into the longitudinal passage 35, and an outlet opening 33 at a second extremity portion 34 opposite to the first extremity portion 32. More in particular, the second extremity portion 34 of snorkel 30 is arranged to engage, in use, a joint portion 19, advantageously tubular-shaped. For example, the extremity portion 34 of the snorkel 30 can be engaged to the rigid frame 10 by introducing the same in the joint portion 19 through a hole 19′. The joint portion 19 of rigid frame 10 can be, furthermore, advantageously provided of a connection hole 19″ through which the flow of air breathed in by the user passes from the longitudinal cavity 35 of snorkel 30 in the upper chamber 21 of visor 20 through the above mentioned outlet opening 33. The upper chamber 21 and the lower chamber 22 are pneumatically connected one another through at least a one-way valve 50, for example 2 one-way valves 50a and 50b. More precisely, the, or each, one-way valve 50 is configured to allow the air to pass from the upper chamber 21 to the lower chamber 22 during the user's inspiration, and to impede, instead, to move in the opposite direction, i.e. from the lower chamber 22 to the upper chamber 21 during the user's expiration. At least an exit mouth 75 is furthermore provided through which the air breathed out by the user moves away from the mask 1 after having passed through a discharge duct 60. The latter is configured, in particular, to pneumatically connect the above mentioned lower chamber 22 with the, or each, exit mouth 75. In the preferred embodiment that is shown, for example, in FIG. 2B, the discharge duct 60 is provided at the visor 20 and is pneumatically connected with the lower chamber 22 through at least an aperture 26. In particular, a first and a second discharge duct 60 are provided in the visor 20 at the opposite sides of the mask 1. This, furthermore, comprises a purge valve 85 to allow the water to exit in case it enters into the mask 1 during the use of the same. The rigid frame 10, furthermore, provides holes 17 for engaging a head strap, not shown in the figure for reasons of simplicity, in order to fasten the diving mask 1 to the user's head during working conditions.

(9) According to the invention, the, or each, exit mouth 75 is positioned at the upper portion 12 of rigid frame, and, more precisely, at the rear perimeter edge 11b of the same.

(10) In the embodiment shown in particular in the figures from 3 to 5, the rigid frame 10, at the above mentioned upper portion 12, provides a deflector body 70 provided of the, or each, exit mouth 75. More precisely, the deflector body 70 is configured to deviate the flow of air breathed out by the user from a stream direction 114 to a discharge direction 115 inclined by a predetermined angle with respect to the stream direction 114. In particular, just as an indication, in order to help reader to correctly understand the above mentioned feature of the invention, we can say that the stream direction 114 is substantially parallel to the coronal plane of the user, whereas the discharge direction 115 is substantially parallel to the sagittal plane of the user.

(11) The deflector body 70 can be, for example, essentially constituted of a first wall 71 and at least a second wall inclined one with respect to the other. More in particular, the first wall 71 is arranged, in use, in front of the exit hole 15 of the rigid frame 10. The second wall 72 provides the, or each, exit mouth 75 whereby it is substantially orthogonal to the discharge direction 115 along which the flow of air breathed out exits the mask 1. In the embodiments of the invention that is shown, as an example, in the figures from 1 to 5, a first group 75a of exit mouths 75 and a second group 75b of exit mouths are provided arranged at opposite sides with respect to the snorkel 30.

(12) The deflector body 70 can be integrated in the rigid frame 10, i.e. the two components can be made in a single piece, for example can be made by moulding of plastic material.

(13) In a preferred embodiment of the invention, the deflector body 70 is a body independent from the rigid frame 10 and configured to removably engage a main body 16 of the rigid frame 10. More in detail, the main body 16 of rigid frame 10 provides an exit hole 15 pneumatically connected to the discharge duct 60 and to the, or each, exit mouth 75 by means of the deflector body 70. Therefore, the above mentioned deflector body 70 is configured to deviate the flow of air breathed out by the user and to direct it towards the, or each, exit mouth 75 for leaving the mask 1 along the discharge direction 115, once it has passed through the above mentioned exit hole 15 along the stream direction 114.

(14) In particular, the visor 20 and the rigid frame 10 can provide respective tightening portions 28 and 18 configured to mutually engage and tighten between them, in use, an engagement portion 48 of face member 40 (see FIGS. 2A and 3). Preferably, the tightening portion 18 of rigid frame 10 and the engagement portion 48 of face member 40 are substantially flat-shaped. More precisely, the visor 20, at the tightening portion 28, and the face member 40, at the respective engagement portion 48, provide respective connection holes 25 and 45 (see FIGS. 3 and 5) arranged, in use, coaxially to the exit hole 15 provided at the tightening portion 18 of the rigid frame 10. Similarly to what above described for the connection holes, also at the inlet hole 19″, the visor 20 and the face member 40 provides respective holes coaxial to the inlet hole 19″ of rigid frame 10. In FIG. 5, in particular, holes 45 and 49 are shown that are made at the engagement portion 48 of face member 40. More in particular, once the mask has been assembled, the, or each, hole 45 of face member 40 is positioned at a respective hole 25 of visor 20 and of a respective hole 15 of rigid frame 10. Analogously, the hole 49 of face member 40 is arranged at hole 19″ of the frame 10 and at hole 29 provided in the visor 20 (FIG. 2A).

(15) In particular, visor 20 can provide an engagement edge 27, which laterally delimits each connection hole 25 of which is provided. Each engagement edge 27 is configured to engage, in use, in a respective exit hole 15, or in a respective inlet hole 19″ of rigid frame 10, with a portion of face member 40 arranged between them, in such a way to provide a firm engagement of face member 40 to rigid frame 10.

(16) In an advantageous embodiment of the invention, the exit hole 15 of rigid frame 10 is associated to a deformable membrane 80 configured to move from a closing configuration of the exit hole 15, to an opening configuration, in such a way to allow the breathed out air to flow out through discharge duct 60 towards the, or each, exit mouth 75, and to impede, instead, the passage of air, or water, in the opposite direction.

(17) The deflector body 70 and the main body 16 of rigid frame 10 can provide respective mutual engagement members, for example mutual snap fit engagement members configured to reversibly move from an engagement configuration to a disengagement configuration, not shown in figure for reason of simplicity. More in particular, in the exemplary embodiment of FIG. 2A, a solution is diagrammatically shown that allows to engage the rigid frame 10 to visor 20 and to deflector body 70. Advantageously, the deflector body 70 can provide engagement portions 176 and 177 arranged to respectively engage an engagement member 127 provided in the visor 20, and an engagement member 116 of the rigid frame 10. For example, the deflector body 70 can provide a protruding tooth 176 facing, in use, the rigid frame 10, which provides, this too, a protruding engagement member 116. More in particular, in use, the edge 177 of deflector body 70 is arranged at a “step” 127 made at the external surface of visor 20. Advantageously, the deflector body 70 can be, therefore, elastically deformed in such a way that the tooth 176 is forced to abut against the tooth 116, and that, therefore, the deflector body 70 is engaged between the two above disclosed engagement members 116 and 127.

(18) In this way it is possible to easily disengage the deflector body from the main body of rigid frame in order to reach, in particular, the above mentioned membrane and to provide, in case, to clean, or the replacement of the same.

(19) The foregoing description exemplary embodiments of the invention will so fully reveal the invention according to the conceptual point of view, so that others, by applying current knowledge, will be able to modify and/or adapt for various applications such embodiment without further research and without parting from the invention, and, accordingly, it is therefore to be understood that such adaptations and modifications will have to be considered as equivalent to the specific embodiments. The means and the materials to realize the different functions described herein could have a different nature without, for this reason, departing from the field of the invention. It is to be understood that the phraseology or terminology that is employed herein is for the purpose of description and not of limitation.