JPH0752880A - Air intake machine for diving - Google Patents

Abstract

PURPOSE:To eliminate a need for an air tank, and also enable diving for a long time by fixing a floating body composed of a side wall section, and of a bottom wall section provided with an air intake means at its center section, onto a floating ring so as to make it float over a water surface, and thereby constituting air to be fed to a snorkel through an air hose connected to the means taking air within the frame body out. CONSTITUTION:A frame body 18 composed of a side wall section 2, a bottom surface section 5, and of a mounting section 6 is installed on a floating ring 1 in a circular ring shape. A plurality of air intake ports 9 are provided in the upper section of the side wall section 2 so as to allow air to be taken in the frame body 18. The center section of the bottom surface section 5 is made somewhat higher than its outer circumferential section while being inclined downward toward the outer circumferential section, and an inner center section 4 is provided at the center section. An outer center section 3 is disposed at the outside of the inner center section, and air circulating gap is formed at a space interspaced with the inner center section 4. The air intake path 20 of the inner center section 4 is connected to a snorkel through an air hose 17. Air from the air intake ports 9 is fed to the snorkel via the ventilating holes 3c of the outer center section 3, flow paths between the inner and outer center sections 4 and 3 and an air flow path 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diving air intake machine, and more particularly to a diving air intake machine as a diving equipment necessary for diving in water for a long time.

[0002]

2. Description of the Related Art In recent years, the number of people who enjoy diving under the sea, so-called scuba diving, has rapidly increased along with windsurfing. Increasingly, you can enjoy playing sea anemones and crabs in the tide pools of Isobe, or snorkeling to make the excitement of looking into the sea even greater, and enjoy long dives in the sea and safe and comfortable diving. Diving is solidifying its position as a sport under the sea. Along with that, social interest is also increasing, and safer and more comfortable diving equipment is being developed.

In order for an object to be clearly visible in the water, to be able to breathe easily for several hours, and to be able to swim freely, diving equipment having the corresponding function is required. As the most basic equipment for diving,
Mask, fins, snorkel
l) can be given. The mask is for clearly seeing the object in the water, creating a space in front of you so that you can see the object clearly even in the water, and also covering the nose so that you can pinch your nose when removing your ears. It is what The snorkel is for breathing without raising your face from the surface of the water, providing comfortable breathing while moving on the surface or at rest, and saving the air in the tank. Fins
It is intended for free swimming on the surface of the water or underwater, and is used to maintain the maximum propulsive force in the water by utilizing the leg muscles. In addition to this, BCD (Buoyancy Con
There are heavy equipment materials such as trol device, regulator, and gauge.

The BCD is a buoyancy adjusting device that allows the user to freely float or sink by controlling the buoyancy in water. Air is put into the BCD to float on the surface of the water for rest. It is also used when bleeding by bleeding air, or when maintaining a state of neither floating nor sinking in water (neutral buoyancy). The regulator is designed to provide pressure-regulated air for comfortable breathing at any depth, adjusting the compressed air in the tank to reduce the pressure to the proper level for the diver to breathe. It has a function. In addition to the regulators that you normally use, you also need a spare regulator (octopus) to use if your regulator is out of order or if your fellow divers run out of air. The cage has a depth gauge that conveys the water depth and a residual pressure gauge that conveys the remaining air volume.
It contains a single instrument such as a compass that distinguishes north, south, east, and west and indicates the direction of travel, and can monitor your situation in water.

However, since the air tank is an indispensable equipment for diving underwater using the diving equipment as described above, and the air is supplied from the air tank to breathe by the regulator, the capacity of the air tank varies. The dive time (30-60 minutes) was limited. In addition, the air tank is heavy and requires knowledge for various operations such as carrying on a back and operating an air supply valve.

[0006]

[PROBLEMS] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an air intake device for diving that does not require an air tank and enables diving for a long time.

[0007]

In order to achieve the above object, the present invention comprises a floating wheel capable of floating above the water surface, an inner central portion having an air inflow passage, and an air hose connecting portion provided on the opposite side of the inner central portion. A bottom part, a side wall part having an outer center part that covers the inner center part of the bottom part and forms a flow path, and a mounting part for fixing the bottom part and the side wall part to the floating ring. The air is supplied to the snorkel provided at the tip of the air hose through the air inflow passage in the inner central portion.

FIG. 1 is a block diagram for explaining an embodiment of a diving air intake device according to the present invention, in which 1 is a floating wheel,
2 is a side wall portion, 3 is an outer center portion, 3a and 3b are protrusion portions, 3c
Is a vent hole, 4 is an inner center portion, 4a and 4b are protrusions, 5 is a bottom surface portion, 6 is a mounting portion, 7 is a drain hole, 8 is a drain hole, 9 is an air hole, 10 is a fixing band, 11 is a flag. A bar, 12 is a flag, 13 is a male screw, 14 is a nut, 15 is a tapered portion, 16 is a spring, 17 is an air hose, 18 is a frame, 19 is an air hose connection, and 20 is an air inflow path.

A side wall portion 2 and a bottom surface portion 5 are provided on an annular floating wheel 1.
A frame 18 including the mounting portion 6 is provided. A plurality of air ports 9 are provided in an upper portion of the side wall portion 2 of the conical frame body 18 so that air is supplied to the inside of the frame body 18. In the lower portion of the side wall portion 2, A plurality of drainage ports 7 are provided. A flag stick 11 is vertically provided on the top of the frame body 18, and a flag 12 is attached to the flag stick 11. By attaching the flag 12, it is possible to inform the third party of the position where the user is currently diving. Also, an outer central portion 3 is provided inside the central portion of the side wall portion 2.
However, for example, it is provided in a cylindrical shape, and a vent hole 3c is provided in the upper side portion of the outer central portion 3. Furthermore, from the side of the outer central portion 3 to the inner side, one or a plurality of protrusions 3a, 3
b is provided downward.

The disk-shaped bottom surface portion 5 of the frame 18 is connected to the side wall portion 2 by a screw or the like at the outer peripheral portion thereof, and the central portion of the bottom surface portion 5 is slightly higher than the outer peripheral portion thereof. ,
It slopes low toward the outer periphery. A drainage hole 8 is provided near the outer peripheral portion. An inner central portion 4 is provided at the central portion of the bottom surface portion 5, and the inner central portion 4
Has a shape that fits inside the outer central portion 3, and has, for example, a cylindrical shape, and a plurality of protrusions 4a and 4b are provided downward on the side portion of the inner central portion 4 so as to face downward. There is. The protrusions 3a and 3b of the outer central portion 3 and the protrusions 4a and 4b of the inner central portion 4 are alternately arranged. Further, a gap is formed between the protruding portion 3b of the outer central portion 3 and the side portion of the inner central portion 4 so that air can flow therethrough.

The mounting portion 6 of the frame 18 is provided in an arcuate shape on the upper portion on the inner peripheral side of the floating wheel 1. The mounting portions 6 are sufficient at four locations in the north, south, east and west, but they may be provided over the entire inner peripheral side of the floating wheel 1. Further, the fixing band 10 is fixed to the floating ring 1 from above the mounting part 6 by fixing the mounting part 6 and the floating wheel 1.
Wrap it around the cross-section outer circumference of the tube body of. It is sufficient for the fixing band 10 to be attached at four places in accordance with the position of the attaching portion 6, but the present invention is not limited to this, and can be arbitrarily provided as needed. A male screw 13 is provided on the outer circumference of the air hose connecting portion 19 extending to the opposite side of the inner central portion 4 of the bottom surface portion 5, and a tip portion of the air hose connecting portion 19 has a taper portion 15, Part 1
5 is detachably connected to an air hose 17 via a nut 14. A spring 16 is wound around the outer circumference of the air hose 17, the number of turns in the tapered portion 15 is dense, and the winding is gradually widened.
The freedom of movement of the air hose 17 is provided. A snorkel, which will be described later, is provided at the other end of the air hose 17.

In the diving air intake device having the above-mentioned structure, the floating wheel 1 is supplied with air to inflate it during use. When the inflated float 1 is floated on the sea surface, a space is formed between the bottom surface 5 of the frame 18 and the sea surface as shown in the figure. The outside air passes through the air port 9,
An air inflow passage 20 of the inner central portion 4 is inserted into the frame 18 and passes through the vent hole 3c provided on the upper side portion of the outer central portion 3 and the air passages of the outer central portion 3, the inner central portion 4 and the inner central portion 4. Air is supplied to the air hose 17 through this.

When a wave is generated on the surface of the sea and seawater is mixed into the frame 18 from the air port 9, the seawater is drained to the surface of the sea through the drainage port 7 and the drainage hole 8. Also, the protrusions 3a and 3b of the outer central portion 3 and the protrusions 4a and 4b of the inner central portion 4
Since and are alternately arranged in the air flow path, inflow of seawater into the air hose 17 can be prevented. In addition, when it is unstable due to wind or waves, the frame 18
A weight will be added to the lower part of the center of the to improve stability. Further, as the air hose 17, if a hose containing a threaded wire is used, strength against water pressure can be obtained.

FIG. 2 is a plan view of a diving air intake device according to the present invention. In the figure, 21 is an air inlet valve, 22 is a break net, and 2
Reference numeral 3 is a screw, and other parts having the same functions as those in FIG. The plurality of drainage ports 7 provided in the side wall portion 2 of the frame body 18 are provided at, for example, eight positions as shown in the drawing, and the drainage holes 8 are provided in the bottom face portion 5 corresponding to the drainage ports 7.
Are provided at eight locations. The side wall portion 2 and the bottom surface portion 5 are attached to each other at four locations with screws 23, for example. Air is supplied from the air inlet valve 21 into the floating wheel 1 and inflated. It is also possible to integrally form the side wall portion 2, the bottom surface portion 5, and the mounting portion 6 that form the frame body 18 with plastic. Further, although the air ports 9 are provided at four places in the drawing, the number of the air ports 9 is not limited to this and can be arbitrarily provided. The inner diameter of the floating wheel 1 is about 30c.
The m and outer diameter are about 50 cm, and the frame body 18 can be easily attached if it is an elastic body such as a motorcycle tube. In addition, when stopping a dive and taking a break, it is possible to hang on the break net 22 and take a break.

FIG. 3 is a view showing a snorkel according to the present invention. In the figure, 31 is a mouthpiece, 32 is a valve, 33 is a spring, 34 is a valve, 35 is a spring, 36 is a wall portion, 37.
Is a pipe. When the diver holds the mouthpiece 31 in his mouth and inhales, the valve 32 is opened to the state shown by the dotted line, and air is supplied from the pipe 37 connected to the air hose 17. When exhausting, the valve 32 is closed as shown in the drawing, the valve 34 is moved slightly forward against the elastic force of the spring 35, and air is expelled into the sea through the gap with the tapered wall portion 36. When the air is again taken in, the valve 34 is closed by the elastic force of the spring 35, the valve 32 is opened, and air is supplied from the pipe 37.

The snorkel requires a pipe thickness suitable for the vital capacity of the diver. Breathing with a thick pipe is easier, but when exhaling the water in the pipe,
Snorkel clearing becomes difficult for divers with low vital capacity. If the pipe shape is elliptical, the resistance when draining can be reduced, and complete draining can be done with one snorkel clear. Air hose 17 and snorkel pipe 37
And are integrally formed. Further, if the air hose 17 is fixed to the waist of the diver with a velcro or the like, the air hose 17 does not get in the way when moving in the sea.

[0017]

As is apparent from the above description, according to the present invention, the side wall portion, the bottom surface portion and the mounting portion constituting the frame body are floated above the sea surface by the floating ring so that the air is constantly aired inside the frame body. Can be stored, and air can be supplied to the diver through the air hose, so it is possible for the diver to dive into the sea as long as he likes. Even if waves are generated on the surface of the sea and the frame is covered with waves, a drain port and a drain hole are provided and the air flow path to the air hose is formed in a double structure, so that the sea water air hose Inflow can be prevented.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining an embodiment of a diving air intake device according to the present invention.

2 is a plan view of the diving air intake device shown in FIG. 1. FIG.

FIG. 3 is a configuration diagram of a regulator in the present invention.

[Explanation of symbols]

1 ... Floating wheel, 2 ... Side wall part, 3 ... Outer center part, 3a, 3b ... Projection part, 3c ... Vent hole, 4 ... Inner center part, 4a, 4b ... Projection part, 5 ... Bottom part, 6 ... Mounting part, 7 ... Drainage port, 8 ... Drainage hole, 9 ... Air port, 10 ... Fixing band, 11 ... Flag bar, 1
2 ... Flag, 13 ... Male screw, 14 ... Nut, 15 ... Taper part, 16 ... Spring, 17 ... Air hose, 18 ... Frame body, 19 ... Air hose connection part, 20 ... Air inflow path.

Claims (1)

[Claims] 1. A bottom part provided with a floating wheel capable of floating above the water surface, an inner center part having an air inflow path, and an air hose connection part provided on the opposite side of the inner center part, and an inner part of the bottom part. A side wall portion that covers the central portion and has an outer central portion that constitutes a flow path,
The bottom surface portion and the side wall portion are attached to each other to fix to the floating wheel, and air is supplied to the snorkel provided at the tip of the air hose through the air inflow passage in the inner central portion. Inhaler for diving.