JPH0751438Y2 - snorkel - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snorkel used for scuba diving or snorkeling and capable of breathing in the sea (underwater) when the sea surface (water surface) moves.

[0002]

2. Description of the Related Art As is well known, in scuba diving or snorkeling, the sea surface (water surface) is moving underwater (underwater).
Snorkel is used to allow breathing in. The snorkel is an air inlet at one end of the snorkel pipe,
A pipe-like member having a mouthpiece at the other end, and the air inlet portion is projected from the sea surface (water surface) and the mouthpiece is held in the sea (underwater) to move the sea surface (water surface) into the sea (underwater). It is possible to breathe in. This snorkel is a mouse that allows you to observe underwater while keeping your face on the surface of the water, or to remain in a downward position when swimming or floating on the water surface. The piece is held and the air inlet at the tip is taken out of the water surface so that it can be absorbed. Here, if the human body dives from the surface of the water, the lungs are forced by the water pressure, and it becomes very difficult to handle the air on the surface of the water even if the snorkel pipe is extended even at a small water depth. Next, in terms of actual use, when snorkeling is started, such as after skin diving or scuba diving, in most cases, the snorkel pipe will be filled with water. If you breathe as it is, you will inhale a large amount of water, so it is necessary to perform a water discharge operation in the snorkel pipe called snorkel clear. This snorkel clearing action exhales strongly while holding,
The water inside the snorkel pipe is expelled by the momentum through the opening at the upper end of the snorkel and the drain valve at the lower end of the snorkel pipe. This operation is performed first, after holding in the water for the first time after ascending to the surface of the water, such as after skin diving, so if the water in the snorkel pipe is not completely drained at the first breath, the subsequent breathing will be performed. Inhaling water is very dangerous. In normal breathing after clearing snorkel, it is often splashed by waves, hits the upper end of the snorkel pipe that comes out of the water, flows into the snorkel pipe, and often sucks it during breathing. Be careful when breathing. As described above, the snorkel is required to have certainty of clearing the snorkel during the snorkel clearing operation and eliminating water droplets during normal breathing. In order to solve these, many inventions and ideas have been made. For example, Jpn.
No. 44796 and registered utility model 63448 are proposed.

[0003]

[Problems to be Solved by the Invention] The above-mentioned actual application 54-04
No. 4796 discloses a method of discharging water entering the pipe by providing one-way valves at the upper and lower ends of the snorkel pipe. According to this method, when the snorkel is cleared,
The one-way valve attached to the upper end of the snorkel pipe prevents the water above the mouthpiece from being discharged, and this amount of water remains in the snorkel pipe without being discharged. This is when the intake after clearing the snorkel,
An accident that sucks in this accumulated water occurs, which is dangerous in practice. If the amount of water that has flowed into the snorkel pipe is small, such as after the snorkel has been completely cleared, this conventional technique is effective, but it is not a device considering clearing the snorkel. According to another conventional technology registration utility model No. 63448, a cylindrical member is provided on the upper end of the snorkel pipe so that seawater or the like is unlikely to directly enter the snorkel pipe, and an opening at the upper end of the snorkel pipe is provided on this upper surface. By providing some holes on the outer periphery with some offset and bending the flow path of the intake air to the snorkel pipe, seawater etc. is splashed on the upper surface of the cylindrical member, and even if it enters through these holes, A device is disclosed which prevents it from falling. However, like the above-mentioned Japanese Patent Application No. 54-044796, even with this method, the upper end of the snorkel pipe is covered with the upper surface of the cylindrical member through a slight lateral gap during snorkel clearing.
The discharged water in the snorkel pipe hits this member and becomes a resistance at the time of discharge, and a part of the water flows back into the snorkel pipe to prevent reliable discharge. That is, snorkel clearing is not considered.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a snorkel seawater entry preventing device which can surely perform both the above-mentioned snorkel clearing operation and the removal of water droplets during normal breathing. More specifically, the object is to provide a means capable of reliably eliminating the water droplets during normal breathing while ensuring the snorkel clearing operation.

[0005]

In order to achieve the above object, the present invention has the following technical means. That is, the description will be made with reference to the reference numerals used in the accompanying drawings corresponding to the embodiments. The air inlet 2 is formed at one end and the mouthpiece 3 is formed at the other end. S
In the snorkel 1 which makes it possible to breathe in the underwater (underwater) W when the sea surface (water surface) S is moved by further protruding and holding the mouthpiece 3 in the underwater (underwater) W; the center of the snorkel pipe 4 When the portion 10 is in the vertical state, the cylindrical air inlet portion 2 is provided at the tip 12 of the upper portion 11 of the snorkel pipe 4 positioned obliquely to the sea surface S.
Is provided, and at the tip 17 of the cylindrical air inlet 2, the sea surface S
The slit-shaped plate 5 is attached so as to be perpendicular to the slit-shaped plate 5, and the tip 12 of the upper portion 11 of the snorkel pipe 4 and the slit-shaped plate 5 are attached to the cylindrical air inlet 2.
The snorkel is characterized in that an oblique drainage passage 6 is formed so as to be connected to a space 18 between and and extend along the lower surface of the upper portion 11 of the snorkel pipe 4.

[0006]

Since the present invention comprises the above technical means, seawater (water) or water shibuki is applied to the air inlet portion 2 when the sea surface (water surface) S is moved using the snorkel 1 for scuba diving or snorkeling. If the seawater (water)
Touches the slit-shaped plate 5 provided on the front surface of the air inlet portion 2, and seawater (water) touching the slit-shaped plate 5 adheres to the slit-shaped plate 5 in a film-like manner due to its surface tension, so that the snorkel The seawater (water) that does not jump into or enter the inside and sticks to the slit-shaped plate 5 like a film immediately descends due to its own weight, and the drainage provided below the slit-shaped plate 5 Since the water is drained from the passage 6, it is possible to prevent seawater (water) from entering the snorkel 1 without hindering the breathing by the snorkel 1, thereby preventing a problem that breathing becomes difficult. In particular, when the snorkel clearing operation is performed to strongly exhale while holding the mouthpiece 3, the slit-shaped plate 5 does not serve as a drainage resistance, and a part of the vigorously spouted water is formed into the slit-shaped plate 5. The adhesive force due to the surface tension to the water is discharged as indicated by arrow C2, and the remaining water such as the water adhered to the slit passes through the tip 12, the space 18 as indicated by arrow C1 and is drained from the oblique passage 6 below. As a result, the snorkel clearing operation becomes reliable.

[0007]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the snorkel seawater (water) invasion preventive device of the present invention has an air inlet 2 at one end of a snorkel pipe 4 and an air inlet of a snorkel 1 at the other end. A slit-shaped plate 5 is provided on the front surface of the portion 2, and a drainage passage 6 as shown in FIG. 3 is provided below the slit-shaped plate 5 and is introduced into the snorkel 1. The air is configured to pass through a slit-shaped plate 5 provided in the air inlet section 2. More specifically, the central portion 1 of the snorkel pipe 4
0 in a vertical manner as shown in FIG. 1, the upper portion 11 of the snorkel pipe 4 is inclined so that the upper portion 11 is inclined.
Is bent with respect to the central portion 10 of the snorkel pipe 4. On the other hand, the cylindrical air inlet portion 2 having a diameter larger than that of the snorkel pipe 4 surrounds the tip portion 12 of the upper portion 11 of the snorkel pipe 4 therein, and can be attached to the tip portion 12. Have 13. The tubular mounting portion 13 is formed by being offset to the upper inner surface 14 inside the tubular air inlet portion 2, and as a result, between the lower inner surface 15 and the lower surface 16 of the mounting portion 13. The drainage passage 6 is partitioned. That is, the drainage passage 6 is formed obliquely below the upper portion 11 of the snorkel pipe 4.

Moreover, the tip 17 of the cylindrical air inlet portion 2 is also provided.
Is laterally opened, and the slit-shaped plate 5 is attached thereto, so that the slit-shaped plate 5 is vertical, and the drainage passage 6 connected to the slit-shaped plate 5 is connected to the space 18 and is formed obliquely downward. It

Next, the operation will be described based on the above configuration. The snorkel 1 used when moving the sea surface (water surface) S during scuba diving or snorkeling is designed so that the air inlet portion 2 is projected from the sea surface (water surface) S and the mouthpiece 3 is held in the sea (underwater) W so that the sea surface (water surface) It is possible to breathe underwater (underwater) W when moving S. When the sea surface (water surface) S is moved using the snorkel 1, sea water (water) or water shibuki may be applied to the air inlet portion 2 (arrow 1). Such seawater (water) and water shibuki hit the slit-shaped plate 5 provided on the front surface of the air inlet portion 2 and cannot enter the snorkel 1.

The seawater (water) or the water shibuki that hits the slit-shaped plate 5 adheres to the slit portion 7 of the slit-shaped plate 5 in a film shape due to the surface tension, but soon the seawater (water) or the water-shibuki It flows downward along the rib 8 (arrow D) due to its own weight (gravity) and is drained to the outside from the drainage passage 6 (arrow O). At this time, since the film formed by seawater (water) or water shibuki is only temporarily formed, there is no concern that the supply of air necessary for breathing will be stopped, and therefore the introduction of air into the snorkel 1 (arrow A It is possible to prevent the ingress of seawater (water) or water shibuki into the snorkel 1 without damaging the). And especially snorkel pipe 4
Since the upper end of the snorkel is only covered with the slit-shaped plate 5, the water in the snorkel pipe 4 is drained, that is, the mouthpiece 3 is held and the breath is strongly exhaled, and the water in the snorkel pipe 4 is drained from the tip 12 with its force. In the snorkel clearing operation to do, there is no resistance in the tip 12 part, and the tip 1
Since the water is guided from 2 to the diagonal drainage passage 6 as it is,
Alternatively, the water is immediately guided to the drainage passage 6 even if it partially hits the slit-shaped plate 5, so that this snorkel clearing operation is surely performed.

[0011]

As described above in detail, the present invention has the following effects. That is, by providing a slit-shaped plate in front of the air inlet of the snorkel, seawater (water) or water shibuki that is about to enter the snorkel from the air inlet is attached to the slit-shaped plate in a film shape. The drainage passage provided below the slit-shaped plate drains the seawater (water) that has been attached to the slit-shaped plate and then descends to the outside, so that the seawater (water) does not interfere with the introduction of air into the snorkel. It is possible to provide a snorkel seawater (water) intrusion prevention device that can prevent the intrusion of water) and water shibuki into the snorkel, and thus prevent problems such as difficulty in breathing. In addition, the snorkel clearing operation for discharging the water in the snorkel pipe 4 from the tip 12 of the snorkel pipe 4 can be surely performed by exhaling strongly while holding the mouthpiece 3.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of a snorkel.

FIG. 2 is a front view of a snorkel seawater (water) entry prevention device.

3 is a cross-sectional view taken along line XX ′ in FIG.

4 is a sectional view taken along the line YY 'in FIG.

[Explanation of symbols]

 1 Snorkel 2 Air inlet part 3 Mouthpiece 4 Snorkel pipe 5 Slit plate 6 Drainage passageway 7 Slit part 8 Rib 10 Central part of snorkel 11 Upper part of snorkel 12 Top part of snorkel 13 Mounting part 14 Air inlet part 2 Upper inner surface 15 Lower inner surface of the air inlet portion 16 Lower surface of the mounting portion 17 Tip of the air inlet portion 2 18 Space

Claims (1)

[Scope of utility model registration request] 1. A snorkel pipe 4 having an air inlet portion 2 at one end and a mouthpiece 3 at the other end, wherein the air inlet portion 2 is projected from a sea surface (water surface) S and the mouthpiece 3 is underwater (underwater). ) In the snorkel 1 that enables breathing in the underwater (underwater) W when moving at the sea surface (water surface) S by gripping with W; when the central portion 10 of the snorkel pipe 4 is vertical, the sea surface S The cylindrical air inlet 2 is provided at the tip 12 of the upper portion 11 of the snorkel pipe 4 which is positioned obliquely with respect to, and the tip 17 of the cylindrical air inlet 2 is substantially perpendicular to the sea surface S. In this way, the slit-shaped plate 5 is attached, and the cylindrical air inlet 2 is connected to the space 18 between the tip 12 of the upper portion 11 of the snorkel pipe 4 and the slit-shaped plate 5 to form the snorkel pipe. 4's Square section 1
1. A snorkel characterized in that an oblique drainage passage 6 is formed along the lower surface of 1.