Valve system for a breathing aid, mouthpiece system for a breathing aid, snorkling tube for a breathing aid, and breathing aid for swimmers

Abstract

The invention relates to a valve system (10) for a breathing aid for swimmers, in particular for an inhalation valve, comprising a valve housing (1) and a valve diaphragm (2) in the valve housing (1); in a contact zone (3) preferably located in a central area of the valve diaphragm (2), the valve diaphragm (2) is disposed on a first end (4) of a fastening element (5); furthermore, from the contact zone (3), the valve diaphragm (2) runs at least partially at an angle in the direction of a second end (6) of the fastening element (5).

Claims

1. A mouthpiece system (20) for a breathing aid (60) for swimmers, comprising a mouthpiece (21), a system housing (22), an exhalation valve (23) through which exhaled air flows, and an air outlet opening (24), with the air outlet opening (24) being covered by a diffusor extension (25) comprising a diffusor plate (26), and the diffusor plate (26) having a plurality of circular and/or oval and/or elliptical openings (27), each of the openings (27) being formed as one of a capillary and a duct wherein the diffusor plate (26) has an inner surface (28) facing the exhalation valve (23), and an outer surface (29) facing away from the exhalation valve (23), with the openings (27) in the diffusor plate (26) extending transversely from the inner surface (28) to the outer surface (29); and wherein each of the openings (27) is disposed in the same direction at an angle () offset 5-89 from an axis normal to the inner surface (28) of the diffusor plate (26) so that, when the mouthpiece system (20) is worn by the swimmer, the exhaled air is directed angularly downwardly away from the swimmer's face.

2. The mouthpiece system (20) according to claim 1, characterized in that the mouthpiece (21) is firmly locked onto the system housing (22).

3. The mouthpiece system (20) according to claim 1, characterized in that each of the openings (27) is disposed in the same direction at an angle () offset 40-85 from an axis normal to the inner surface (28) of the diffusor plate (26) so that, when the mouthpiece system (20) is worn by the swimmer, the exhaled air is directed angularly downwardly away from the swimmer's face.

4. The mouthpiece system (20) according to claim 3, characterized in that the angle () is adaptable to the swimmer.

5. The mouthpiece system (20) according to claim 1, characterized in that the diffusor plate (26) and/or the diffusor extension (25) is/are mounted on the system housing (22) to be exchangeable.

6. The mouthpiece system (20) according to claim 1, characterized in that the system housing (21) has two opposing lateral openings (32), in each of which a snorkeling tube (40) is mounted to be rotatable.

7. A breathing aid (60) for swimmers, comprising at least two snorkeling tubes (40), a mouthpiece system (20) according to claim 1, and a head attachment system (61) with two elongated fastening elements (62), each comprising a first end portion (63) and a second end portion (64), wherein in each case the first end portion (63) of one fastening element (62) is fastened or can be fastened to each snorkeling tube (40), with the position of the second end portions (62) being mutually adjustable by a latching system.

8. The breathing aid (60) according to claim 7, characterized in that the snorkeling tubes (40) are mounted to be rotatable in a system housing (22) of the mouthpiece system (20).

9. The breathing aid (60) according to claim 7, characterized in that a snorkeling tube (40) has a groove-shaped depression (66) on a tube area section (65) facing the head of a swimmer, with the first end portion (63) of a fastening element (62) being positionable in the depression (66) in a rail-like manner.

10. The breathing aid (60) according to claim 9, characterized in that the first end portion (63) of a fastening element (62) has a plurality of recesses (67) and the first end portion (63) is fastened or can be fastened in the depression (66) by a fastening means (68) that can be introduced into at least one of the recesses (67).

11. The breathing aid (60) according to claim 7, characterized in that the latching system comprises a turning knob (69) and/or a ratchet lever.

12. The breathing aid (60) according to claim 7, characterized in that on the side of the head attachment system (61) facing the head of a swimmer, a head contact plate (80) is formed in the area of the latching system.

13. The breathing aid (60) according to claim 7, characterized in that in the breathing aid's (60) state of use, the turning knob (69) and/or the ratchet lever is/are situated in relation to a dental support plate (82) of a mouthpiece (21) on a line arranged at an angle () of 30-60 to the dental support plate (82).

Description

(1) Shown is/are in:

(2) FIGS. 1a, 1b: a valve system according to the invention;

(3) FIG. 1c: an optional embodiment of a valve housing of a valve system;

(4) FIG. 1d: a further embodiment of a valve systems in an exploded view in a cut;

(5) FIG. 1e: a perspective view relating to a fastening element of the valve system;

(6) FIG. 1f: a perspective view of an end cap;

(7) FIG. 1g a perspective view of a further embodiment relating to an end cap;

(8) FIGS. 2a-2h: a mouthpiece system according to the invention, and components of this mouthpiece system;

(9) FIGS. 3a, 3b: a snorkeling tube according to the invention with weakening contours;

(10) FIGS. 4a-4e: a snorkeling tube according to the invention with a magnetic element;

(11) FIG. 5 a breathing aid according to the invention;

(12) FIGS. 6a-6c: single steps of the method according to the invention for putting on or attaching a breathing aid for swimmers; and

(13) FIGS. 7a-7c: swimming goggles according to the invention.

(14) Hereinafter, identical reference numerals will be used for identical parts or parts of identical action.

(15) In FIGS. 1a and 1b, a valve system 10 according to the invention for a breathing aid for swimmers is illustrated. The illustrated valve system 10 is an inhalation valve system. It comprises a valve housing 1 and a valve diaphragm 2 arranged in the valve housing 1, with the valve diaphragm 2 being arranged on a contacting section 3 at a first end 4 of a fastening element 5. The valve system's 10 representation is in a longitudinal cut view. The illustrated right-hand opening is the air inlet opening 7 through which ambient air enters the valve housing 1 during inhalation. The second opening 8 of the valve housing serves to connect to a snorkeling tube end 9.

(16) In the illustrated example, the contacting section 3 rests upon the fastening element's 5 first end 4. The fastening element 5 is of a stem-like design. From the contacting section 3, the valve diaphragm is formed to be angled toward the fastening element's 5 second end 6.

(17) In the illustrated longitudinal cut view, the valve diaphragm 2 can be divided in two valve diaphragm sections 11 and 11. The valve diaphragm sections 11 and 11 are angled from the contacting zone 3 toward the fastening element's 5 second end, with the two valve diaphragm sections 11 and 11 enclosing an angle of 80 to 95. The valve diaphragm sections 11 and 11 accordingly are formed to be angled such that they are oriented toward the second opening 8 which is formed to be opposite to the air inlet opening 7.

(18) The valve system's 10 state of exhalation or rest is shown in FIG. 1a. The valve housing 1 is formed to be sleeve-like, with a boundary surface 13 being formed on the valve housing's 1 inner surface 12 so as to protrude inward, namely in the direction of longitudinal axis L. The boundary surface 13 is formed over the entire circumference and protrudes obliquely from the valve housing's 1 inner surface 12. Consequently, the angle between the boundary surface 13 and the inner surface 12 is larger than 90.

(19) The valve diaphragm's 2 end portion 14 which is formed to be at a maximum distance from contacting section 3 rests upon boundary surface 13 in the illustrated state of exhalation or rest in FIG. 1. Preferably, the angle between inner surface 12 and boundary surface 13 is formed such that the distance of the valve diaphragm's 2 end portions 14 may be maintained at the predetermined angle which is enclosed by the two valve diaphragm sections 11 and 11. Angle thus is 180 minus angle .

(20) Fastening element 5 is formed at the first end 4 in a clamping portion 15. Valve diaphragm 2 rests upon the clamping portion 15. The clamping portion has beveled surfaces 16, with the beveled surfaces 16 defining the valve diaphragm's 2 angle toward the fastening element's 5 second end. Portions 17 of valve diaphragm 2 rest upon the clamping portion's 15 beveled surfaces 16. Angle of the beveled surfaces 16 corresponds to half of the angle in the illustrated example.

(21) The portions 17 of valve diaphragm 2 may also be connected to the clamping portion's beveled surfaces 16. The portions 17 of valve diaphragm 2 are formed to be in proximity to contacting section 3 or adjacent to contacting section 3 of valve diaphragm 2. The angle of the valve diaphragm consequently cannot be changed in contacting section 3 and in valve diaphragm's 2 portion 17.

(22) The tappet-like fastening element 5 and/or the clamping portion 15 may be formed as a flow divider in the valve housing 1.

(23) The state of inhalation is shown in FIG. 1b. In this state, air flows into the valve system's 10 valve housing 1 along the illustrated arrows. In the inhalation process, the angle enclosed by the valve diaphragm sections 11 and 11 will decrease. This is because the valve diaphragm's 2 end portions 14 will be angled even more in the direction of the fastening element's 5 second end 6 or even more in the direction of the valve housing's 1 longitudinal axis L. The angle enclosed by the valve diaphragm's portions 17 from contacting section 3 cannot be decreased because these portions 17 are resting upon the clamping portion's 15 beveled surfaces 16. Since the angle of valve diaphragm sections 11 and 11 is decreased, and the valve diaphragm's end portions 14 are moved in the direction of the valve housing's longitudinal axis L or in the direction of fastening element's 5 second end 6, a gap is created between the valve diaphragm's 2 end portions 14 and the boundary surface 13 through which air can enter.

(24) At the time when no more air is inhaled, the valve diaphragm's end portions 14 are moved back to the boundary surfaces 13 so that no more air can flow in and air is also prevented from flowing out. Valve housing 1 may have strut-like elements 18 at the air inlet opening 7 (see FIG. 2a in this respect). Due to these strut-like elements 18, dirt particles etc. are prevented from entering the inside of valve housing 1. In the illustrated example, valve housing 1 is slid onto the snorkeling tube portion 9 in a clamping manner. To this end, the valve housing's 1 inner cross-section Q.sub.1 has a slightly larger value than the snorkeling tube end's 9 outer cross-section Q.sub.2.

(25) At the valve housing's 1 end portion 19 facing away from the air inlet opening 7, at least one latching element and/or a latching surface may be formed on the inner surface and/or on the outer surface for fastening the valve system 10 to a snorkeling tube 40 or a snorkeling tube end 9.

(26) A further embodiment of a valve housing 1 is illustrated in FIG. 1c. At the air inlet opening 7, the valve housing 1 has a plurality of horizontal strut-like elements 33 and a plurality of vertical strut-like elements 34. The horizontal strut-like elements 33 and the vertical strut-like elements 34 are formed to be mutually crossing. The strut-like elements 33 and 34 thus form a grid-like cover 35. The grid-like cover 35 may be formed to be spherical, i.e. the cover 35 may be curved. The strut-like elements 33 and 34 may also be referred to as web-like elements 33 and 34. Due to the grid-like cover 35, dirt particles etc. are prevented from entering the inside of valve housing 1.

(27) FIG. 1d shows a further embodiment of a valve housing 1 having two valve housing sections 45, 45. The valve diaphragm 2 and the fastening element 5 are likewise illustrated. The fastening element 5 is illustrated in more detail in FIG. 1e.

(28) It is apparent from the exploded view that the valve housing sections 45, 45 are slid onto one another for forming valve housing 1. A clamping portion 15 is formed in the first housing section 45. The clamping portion 15 is a recess formed on the inner surface 12 of valve housing section 45. Such a recess is also formed on the opposite inner surface of valve housing section 45 so that the fastening element 5 that is formed to be plate-like may be slid into the recesses so that the clamping portion 15 causes a clamping connection of the fastening element 5 to the valve housing section 45.

(29) On the valve housing section's 45 inner surface 12, a circumferential section 46 comprising a smaller material thickness is moreover formed. A stop edge 47 is formed due to the material reduction in section 46. The valve housing section 45, in particular the end edge 48 of valve housing section 45 gets in contact with the stop edge 47. The stop edge 47 has the effect that the valve housing section 45 cannot be slid further into the valve housing section 45. A clamping portion 15 is moreover also formed in the valve housing section 45 so that the fastening element 5 may be brought into a clamping connection to the valve housing section 45 as well.

(30) The illustrated valve diaphragm 2 has two valve diaphragm sections 11 and 11, with the valve diaphragm 2 being formed to be not symmetrical in the illustrated example. Rather, valve diaphragm section 11 is longer than valve diaphragm section 11.

(31) The valve housing section 45 has an air-permeable cover 55 on the air inlet opening 7. The air-permeable cover 55 reaches from the right-hand end of clamping portion 15 to the right-hand end of valve housing section 45. Circular openings 56 are formed in the air-permeable cover 55. Due to the air-permeable cover's 55 material thickness, ducts 56 are formed. The air-permeable cover may also be referred to as a diffusor plate. Substantially the same explanations apply as will be given later in the context of a diffusor plate of a mouthpiece system.

(32) A circumferential indentation 57 is moreover formed on the outer surface of valve housing section 45. The end cap's 85 housing may engage into this indentation 57 so that the end cap 85 may be connected to the valve housing section 45 in a clamping manner or the end cap 85 may be slid onto the valve housing section 45.

(33) The end cap 85 has an end surface 86 that extends obliquely. Due to this end surface 86 that extends obliquely, the end cap 85 defines a pointed or arrow-shaped geometry. A plurality of cross members 87 of a lamella-like arrangement are formed in the end surface 86. Due to the cross members 87 of the lamella-like arrangement, opening 89 are formed. In relation to the end cap's 85 end edge 88, the openings 89 enclose an angle of 40 to 50, in particular 45. The illustrated end cap 85 should in particular be slid onto valve housing 1 when flip turns are intended to be performed with the valve system 10, in particular with a breathing aid comprising the valve system 10. Due to the cross members 87 of the lamella-like arrangement, water cannot enter the end cap 85 in performing a flip turn.

(34) FIG. 1e shows the alternative embodiment of a fastening element 5. This is of a plate-like design. In this plate shape, recesses 49 extending in a longitudinal direction are also formed. The elongated recesses 49 preferably are formed on both sides of the plate shape. At the first end 4 of fastening element 5, an angled or angular guiding element 90 is formed. The angle between the valve diaphragm sections 11 and 11 may be set by means of this guiding element.

(35) The end cap 85 of FIG. 1d is illustrated in FIG. 1f in a perspective view. The end surface 86 that extends obliquely as well as the cross members 87 of the lamella-like arrangement may be seen.

(36) A further embodiment of an end cap 85 is illustrated in FIG. 1g. This end cap 85, too, has an end surface 86 that extend obliquely. The only opening of end cap 85 is the opening for connecting to a valve housing 1 or a valve housing section 45. The end cap 85 thus has the effect that air cannot enter the valve system. Consequently, such an end cap 85 should always be used in conjunction with a breathing aid having two snorkeling tubes so that a completely closed end cap 85 may be slid onto just one valve system of one snorkeling tube.

(37) A mouthpiece system 20 is illustrated in FIGS. 2a-2c. This mouthpiece system 20 comprises a mouthpiece 21, a system housing 22, an exhalation valve 23, and an air outlet opening 24, with the air outlet opening being covered by a diffusor extension 25 comprising a diffusor plate 26, and the diffusor plate 26 comprising a plurality of openings 27.

(38) The air outlet opening accordingly defines the intermediate space between the exhalation valve 23 and the diffusor plate 26. The diffusor plate has an inner surface 28 facing the exhalation valve 23, and an outer surface 29 facing away from the exhalation valve 23. The openings 27 in the diffusor plate 26 extend from the inner surface 28 to the outer surface 29 at an angle of 60 to 76. In the illustrated sectional drawings, the openings 27 accordingly extend from the mouth obliquely downward in the direction of the chin. Thus, air bubbles are not created in front of the swimmer's face. The emitted air is discharged toward the chin or neck. The described angle may be adaptable to the swimmer's lung volume and/or capacity and/or preferences. The exhaled air flows along the arrow directions illustrated in FIG. 2h.

(39) As can be seen from FIGS. 2b-2h, the diffusor plate 26 and/or the diffusor extension 25 may be mounted on the system housing 22 to be exchangeable, in particular by means of latching and/or snap connections. In the illustrated example, the openings 27 of the diffusor plate which is arched (see FIG. 2h in this respect) have opening axes that extend in parallel to one another.

(40) The opening 27 representing the first opening as seen from the top, extends in parallel to a central opening 27 and in parallel to the last opening 27 which is formed in the bottom area 30 of diffusor plate 26. The openings (27) in the diffusor plate's bottom area 30 have a different angle so that the parallelism of the openings or opening axes may be established. Together with a fastening flange 31, the diffusor plate 26 forms the diffusor extension 25. Diffusor extension 25 may be fitted on top of the system housing 22.

(41) In the present example, the system housing 22 has two opposing lateral openings 32, in each of which a snorkeling tube 40 is mounted to be rotatable. To this end, snorkeling tube 40 may have a flange surface preferably formed of a circular ring or elliptical shape, with the flange surface (not represented) being arranged to be rotatable on an inner surface delimiting the lateral opening 32.

(42) It is moreover shown in FIG. 2c that the mouthpiece 21 may be arranged on the system housing 22 such that an imaginary prolongation through a dental support plate 82 of mouthpiece 21 describes an angle of 60 to 80, in particular 65 to 75, in particular 70, with the extensions of the openings 27 formed in diffusor plate 26.

(43) By means of the mouthpiece system 20 according to the invention it is possible for a swimmer to be able to perform a flip turn while water cannot enter the mouthpiece system 20. This is possible primarily because of the openings 27 that extend obliquely.

(44) A snorkeling tube 40 according to the invention is furthermore shown in FIGS. 2a and 2b. Snorkeling tube 40 comprises a first portion 91 facing the mouthpiece 21 or mouthpiece system 20, and a second portion 92 associated to an air inlet opening or the valve system 10.

(45) It is obvious from FIGS. 2a and 2b that the snorkeling tube 40 is bent several times. When viewing the snorkeling tube 40 in the breathing aid's state of use in a side view as shown in FIG. 2b, it can be seen that the second portion 92 is angled from the first portion 91. The second portion 92 is angled in particular in the direction of the mouthpiece's 21 or mouthpiece system's 20 blow-out direction AR. The angle describing the first portion's 92 angularity from the first portion 91 is in particular 12 to 18.

(46) When viewing the snorkeling tube 40 in the breathing aid's state of use in a top view as shown in FIG. 2a, the first portion 91 and the second portion 92 are bent such that a convex bending is given corresponding approximately to a swimmer's head shape. It is also obvious from this view that the first portion 91 has a linear longitudinal extension LE1 corresponding to at least 1.8 times, in particular at least 2 times the dimension of the linear longitudinal extension LE2 of the second portion 92. The linear longitudinal extensions LE1 and LE2 thus describe the linear distance between the respective ends of first portion 91 and second portion 92, respectively.

(47) It is furthermore apparent in FIG. 2a that the bending radius r1 in the first portion 91 is formed as a convex bending radius r1 which may formed to be different as compared to the bending radius r2 of the second portion 92. In the second portion 92, a step may be formed on the outer surface in such a manner that a cap-like housing, in particular the illustrated valve housing 1 can be slid upon the second portion 92 at least in sections. In the area of the step, the snorkeling tube housing as seen in cross-section may have a reduced outer circumference as compared to the rest of the second portion's 92 snorkeling tube housing.

(48) A snorkeling tube 40 for a breathing aid for swimmers is illustrated in FIGS. 3a and 3b, with a number of spaced apart weakening contours 41 being formed on a snorkeling tube section 44 facing an air inlet opening 43. The snorkeling tube length L.sub.s is formed to be adaptable by severing one of the weakening contours 41.

(49) The weakening contours 41 may be formed as notch-like cuts, for example. Furthermore, it is conceivable for the weakening contours 41 to have a number of spaced apart recesses in the material. In the illustrated example, the weakening contours 41 extend in a circular form over the entire circumference around the snorkeling tube section 44. The four weakening contours 41 are mutually arranged at the same distance. Depending on the head size and, for instance, the size of the valve housing 1 of a valve system 10, a weakening contour 41 may be selectively severed. The severing may be performed by kinking, for example. It is furthermore conceivable that the weakening contour 41 can be severed by rotating. Also, the use of tools, such as, for instance, scissors, a knife or a saw is possible.

(50) Moreover, a plurality of markings 42 is formed on the snorkeling tube section 44, with the snorkeling tube length L.sub.s being adjustable by means of the markings 42. The markings 42 are formed on the weakening contours 41 at least in sections.

(51) The snorkeling tube end 9 facing the air inlet opening 43 may be formed on the outer surface such that a valve system 10, in particular a valve system 10 according to the invention described above can be attached to the snorkeling tube end 9. The cross-sections of the snorkeling tube end 9 and the valve housing 1 may be adapted to one another, for example.

(52) A further snorkeling tube 40 according to the invention is formed in FIGS. 4a-4e. As can be seen in FIGS. 4c and 4e, a tube area section 51 facing the head of a swimmer has a depression 52, with a magnetic element 53 being inserted and fixed in the depression 52. The fixing of the magnetic element 53 in the depression 52 may be performed by gluing, for example.

(53) The depression 52 represents an indentation or stamping which constitutes such a form that a magnetic element 53 of an elongated form may be inserted in the depression 52. Preferably, the magnetic element's 53 thickness is formed to be smaller or equal to the depression's 52 depth so that the magnetic element 53 will nor protrude beyond the tube area section 51.

(54) The magnetic element 53 cooperates with a fastening magnet 54 of swimming goggles 70. The fastening magnet 54 may be displaced upward or downward along the arrow P1 so that the snorkeling tube's 40 position is variable in relation to the swimming goggles 70 situated on a head, or to the head attachment system 71 of the swimming goggles 70. Of course, the magnetic element 53 may also cooperate with a fastening magnet of diving goggles or a head band or a head attachment system of a breathing aid. In the illustrated example, the snorkeling tube 40 is part of a breathing aid comprising a mouthpiece system 20 and a valve system 10.

(55) A breathing aid 60 for swimmers is illustrated in FIG. 5, with the breathing aid 60 comprising two snorkeling tubes 40, a mouthpiece system 20, and a head attachment system 61. The head attachment system 61 has two elongated fastening elements 62, each having a first end portion 63 and a second end portion 64, wherein in each case the first end portion 63 of a fastening element 62 is fastened or may be fastened to each snorkeling tube 40, with the positions of the second end portions 64 of the two fastening elements 62 being mutually adjustable by a latching system.

(56) The latching system may be a system comprised of rack-like and gear-like elements, with the rack-like elements being formed in conjunction with the fastening elements 62 and mutually arranged to be mobile. Rack-like elements are in particular formed in the second end portions 64.

(57) The snorkeling tubes 40 are mounted to be rotatable in the mouthpiece system's 20 system housing 22. Both snorkeling tubes have a grove-like depression 66 on tube area sections 65 facing the head of a swimmer, with the first end portion 63 being in each case positionable in the depression 66 in a rail-like manner. In other words, the first end portion 63 may be displaced in the direction toward the mouthpiece system 20 or in the direction toward the valve system 10 in a rail-like manner.

(58) The fastening element's 62 first end portion 63 has a plurality of recesses 67 in the form of holes, with the illustrated first end portion 63 being fastened in the depression 66 by a fastening means 68 that may be introduced into one of the recesses 67. The fastening means 68 may be formed as a rivet-like fastening means which is fixed in the depression 66. It is also conceivable for the fastening means to be formed separately and detached from the depression 66, wherein the depression 66 also needs to have a recess in this case so that the first end portion 63 can be fastened in the depression 66. The latching system, that is not shown in greater detail, has a turning knob 69 in FIG. 5. Moreover, in the area of the latching system, in particular in the area of the turning knob 69, a head contact plate 80 is formed on the side of the head attachment system 61 facing the head of a swimmer. The head contact plate 80 is formed to be arched. Pressure forces acting upon the head are distributed in a two-dimensional manner by means of such a head contact plate 80. It moreover prevents, for instance, hair from getting wound around the turning knob 69.

(59) The single method steps of a method according to the invention for putting on a breathing aid 60 are illustrated in FIGS. 6a-6c. As shown in FIG. 6a, a mouthpiece 21 of a mouthpiece system 20 is first inserted into the swimmer's mouth. The mouthpiece 21 in this case usually comprises a dental support plate 82 or bite tray so that the mouthpiece 21 can be fixed in the mouth.

(60) Subsequently, the two snorkeling tubes 40 are pivoted. The pivoting of the snorkeling tubes 40 is done in an arch as shown in FIG. 6b. Accordingly, the snorkeling tubes are pivoted from the front to the rear. The pivoting of the snorkeling tubes 40 is performed with the mouthpiece 21 further remaining in the swimmer's mouth.

(61) After the two snorkeling tubes 40 have been pivoted completely, the breathing aid 60 is fastened on the swimmer's head 81 by means of a head attachment system 61. In the illustrated example, the fastening of the head attachment system 61 is performed by turning a turning knob 69.

(62) The snorkeling tubes 40 are pivoted such that the turning knob 69, in particular the turning knob's 69 center, is situated in relation to the dental support plate 82 on a line arranged at an angle of 40-50 to the horizontally arranged dental support plate 82.

(63) The combination of a mouthpiece system 20 with snorkeling tubes 40 mounted therein to be rotatable, and the head attachment system 61 allows an optimum angle for the swimmer to be set with respect to the turning knob 69 or a ratchet lever, at which unpleasant traction forces on the palate and/or gingiva will not be created despite the breathing aid's 60 firm fixing on a swimmer's head 81. In a ratchet lever, the line would pass through the ratchet lever's axis of rotation, for example.

(64) Swimming goggles 70 are illustrated in FIGS. 7a-7c in different views. The swimming goggles 70 have a head attachment system 71 with two elongated fastening elements 72, each of which having a first end portion 73 and a second end portion 74, with the first end portions 73 pointing toward the lenses 75 of the swimming goggles 70.

(65) The second end portions' 74 position is adjustable via a latching system 76. The first end portions 73 are formed in one piece with the edge portions 77 of the lenses 75. The edge portions 77 may also be referred to as lateral lens covers or lateral frame portions.

(66) It is furthermore conceivable for the first end portions 73 to be connected to the edge portions 77. On the side of the head attachment system 71 facing a swimmer's head, a head contact plate 79 is formed in the area of the illustrated turning knob 78. The head contact plate 79 is formed to be arched so that it can fit the swimmer's head in an ergonomic manner.

(67) The elongated fastening elements 72 have recesses 83 of a slotted hole shape. The recesses 83 of the slotted hole shape effectuate flexibility of the fastening elements 72 so that the swimming goggles 70 can be stored in a small storage container. To this end, that part of the swimming goggles 70 comprising the head contact plate 79 may be bent in the direction of the lenses 75. Due to the recesses 83, bending portions 84 (see FIG. 7c) may be formed, wherein the material of the longitudinal fastening elements 72 will not be impaired and, for instance, does not break or tear off either. In the state illustrated in FIG. 7c, swimming goggles may be packed in smaller storage containers.

(68) It should be noted at this point that all of the elements and components described above in conjunction with the embodiments according to FIGS. 1a to 7c, separately or in any combination, in particular the details illustrated in the drawings, are claimed as essential to the invention. The aspects according to the invention, in particular the valve system according to the invention and/or the mouthpiece system according to the invention and/or the snorkeling tubes according to the invention and/or the breathing system according to the invention may be optionally combined.

(69) Hereinafter, further exemplary embodiments will be indicated.

EXEMPLARY EMBODIMENT 1

(70) A snorkeling tube (40) for a breathing aid (60) for swimmers, wherein on a snorkeling tube section (44) facing an air inlet opening (43), a plurality of spaced apart weakening contours (41) is formed such that the snorkeling tube length (LS) is formed to be adaptable by severing one of the weakening contours (41).

EXEMPLARY EMBODIMENT 2

(71) The snorkeling tube (40) according to exemplary embodiment 1,

(72) characterized in that

(73) a plurality of spaced apart markings (42) is formed on the snorkeling tube section (44), wherein the snorkeling tube length (LS) is adjustable by means of the markings (42).

EXEMPLARY EMBODIMENT 3

(74) The snorkeling tube (40) according to exemplary embodiment 2,

(75) characterized in that

(76) the markings (42) are formed on the weakening contours (41) at least in sections.

EXEMPLARY EMBODIMENT 4

(77) The snorkeling tube (40) according to any one of exemplary embodiments 1 to 3,

(78) characterized in that

(79) the snorkeling tube end (9) facing an air inlet opening (43) is formed on the inner and/or outer surface such that a valve system, in particular a valve system (10) according to any one of the patent claims is fastened or can be fastened to the snorkeling tube end (9).

EXEMPLARY EMBODIMENT 5

(80) The snorkeling tube (40) according to any one of exemplary embodiments 1 to 4,

(81) characterized in that

(82) at the snorkeling tube end facing away from the air inlet opening (43), a flange surface is formed to be of a preferably circular ring or elliptical ring shape.

EXEMPLARY EMBODIMENT 6

(83) A snorkeling tube (40) for a breathing aid (60) for swimmers, wherein a tube area section (51) facing the head of a swimmer, has a depression (52), and a magnetic element (53) is inserted and fastened in the depression (52).

EXEMPLARY EMBODIMENT 7

(84) The snorkeling tube (40) according to exemplary embodiment 6,

(85) characterized in that

(86) the magnetic element (53) is formed to be elongated.

EXEMPLARY EMBODIMENT 8

(87) The snorkeling tube (40) according to exemplary embodiment 6 or 7,

(88) characterized in that

(89) the magnetic element (53) cooperates with a fastening magnet (54) of swimming goggles (70) or diving goggles or a head band or a head attachment system (61) of the breathing aid (60).

EXEMPLARY EMBODIMENT 9

(90) A method for putting on a breathing aid for swimmers, in particular a breathing aid (60) according to any one of the patent claims, comprising the steps of: inserting a mouthpiece (21) into the swimmer's mouth, pivoting at least one snorkeling tube (40), attaching the breathing aid (60) on the swimmer's head (81) by means of a head attachment system (61).

EXEMPLARY EMBODIMENT 10

(91) The method according to exemplary embodiment 9,

(92) characterized in that

(93) at least one snorkeling tube (40) is pivoted such, and the head attachment system (61) adopts such a position on the swimmer's head (81) that a turning knob (69) and/or a ratchet lever of the head attachment system (61) is/are situated in relation to a dental support plate (82) of the mouthpiece (21) on a line arranged at an angle () of 30-60, in particular of 40-50, in particular of 45 to the dental support plate (82).

EXEMPLARY EMBODIMENT 11

(94) The method according to exemplary embodiment 9 or 10,

(95) characterized in that

(96) the fastening of the head attachment system (61) is performed by turning a/the turning knob (69) or by actuating a/the ratchet lever.

EXEMPLARY EMBODIMENT 12

(97) Swimming and/or diving goggles (70) with a head attachment system (71) having two elongated fastening elements (72), each having a first end portion (73) and a second end portion (74), and the first end portion (73) pointing toward the lenses (75) or lens of the swimming and/or diving goggles (70), with the positions of the second end portions (74) being mutually adjustable by a latching system.

EXEMPLARY EMBODIMENT 13

(98) Swimming and/or diving goggles (70) according to exemplary embodiment 12,

(99) characterized in that

(100) the latching system comprises a turning knob (78) and/or a ratchet lever.

EXEMPLARY EMBODIMENT 14

(101) Swimming and/or diving goggles (70) according to exemplary embodiment 12 or 13,

(102) characterized in that

(103) the first end portions (73) of the fastening elements (72) each are connected to an edge portion (77) of the lenses (75) or lens.

EXEMPLARY EMBODIMENT 15

(104) Swimming and/or diving goggles (70) according to exemplary embodiment 12 or 13,

(105) characterized in that

(106) the first end portions (73) of the fastening elements (72) and the edge portions (77) of the lenses (75) or lens are formed to be of one piece.

EXEMPLARY EMBODIMENT 16

(107) Swimming and/or diving goggles (70) according to any one of exemplary embodiments 12 to 15,

(108) characterized in that

(109) on the side of the head attachment system (71) facing the head of a swimmer, in particular in the area of a/the turning knob (78) or a/the ratchet lever, a head contact plate (79) is formed.

EXEMPLARY EMBODIMENT 17

(110) Swimming and/or diving goggles (70) according to any one of exemplary embodiments 12 to 16,

(111) characterized in that

(112) at least one elongated fastening element (72) has a recess (83) which is preferably formed in the shape of a slotted hole.

LIST OF REFERENCE NUMERALS

(113) 1 valve housing 2 valve diaphragm 3 contacting section 4 first end 5 fastening element 6 second end 7 air inlet opening 8 opening 9 snorkeling tube end 10 valve system 11, 11 valve diaphragm section 12 inner surface 13 boundary surface 14 end portion of valve diaphragm 15 clamping portion 16 beveled surface 17 portion of valve diaphragm 18 strut-like element 19 end portion of valve housing 20 mouthpiece system 21 mouthpiece 22 system housing 23 exhalation valve 24 air outlet opening 25 diffusor extension 26 diffusor plate 27, 27, 27 opening 28 inner surface 29 outer surface 30 bottom area of diffusor plate 31 fastening flange 32 lateral opening 33 strut-like element 34 strut-like element 35 grid-like cover 40 snorkeling tube 41 weakening contour 42 marking 42 air inlet opening 44 snorkeling tube section 45, 45 valve housing section 46 section 47 stop edge 48 end edge 49 recess 51 tube area section 52 depression 53 magnetic element 54 fastening magnet 55 air-permeable cover 56 circular opening 56 duct 57 indentation 60 breathing aid 61 head attachment system 62 elongated fastening element 63 first end portion 64 second end portion 65 tube area section 66 depression 67 recess 68 fastening means 69 turning knob 70 swimming goggles 71 head attachment system 72 fastening element 73 first end portion 74 second end portion 75 lens 76 latching system 77 edge portion 78 turning knob 79 head contacting plate 80 head contacting plate 81 head 82 dental support plate 83 recess 84 bending portion 85, 85 end cap 86 end surface 87 cross member 88 end edge 89 opening 90 guiding element 91 first portion 92 second portion , angle between valve diaphragm sections, in particular between the valve diaphragm's end portions angle between the inner surface and boundary surface angle opening of cross members of a lamella-like arrangement angle of snorkeling tube with respect to the angled second portion angle between the dental support plate and openings of the diffusor plate angle of beveled surface angle of diffusor plate opening angle of turning knob position AR blow-out direction L longitudinal axis Q.sub.1 inner cross-section Q.sub.2 outer cross-section L.sub.s snorkeling tube length P1 arrow LE1 linear longitudinal extension of first portion L2 linear longitudinal extension of second portion r1 bending radius of first portion r2 bending radius of second portion