JPH0318316Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial application field> This invention allows crew members of ships operating in cold waters to avoid dying from the cold even if they accidentally fall into the sea while working on the deck. Concerning a water-resistant and cold-proof life jacket that is worn to keep you afloat until rescue comes.

<Prior Art> The essential conditions for a water-resistant and cold-proof life jacket are that it should prevent death due to cold even if it falls into the sea, and that it should be able to stay afloat until rescue arrives. Life jackets have traditionally been devices that allow people to stay afloat until help arrives. This is a hollow body shaped to be attached to the chest of a human body, made of rubberized cloth, and a gas supply source is connected to this hollow body, so that when the body falls into the sea,
Gas is supplied into the hollow body from a gas supply source to provide buoyancy to the wearer.

<Problem that the invention aims to solve> However, with the above life jacket, if the wearer falls face down into the sea, if gas is supplied to the hollow body, the wearer will float up face down and there is a risk of suffocation. There was a problem that there was. Also,
There was also the problem that if the hollow body came into contact with other floating objects and was damaged, the gas could escape from the hollow body and cause a loss of buoyancy.

<Means for solving the problems> A means for solving both of the above problems is to create a main body made of waterproof and cold protection material so as to cover at least the neck to the waist area, and to A hollow buoyant body provided from the back of the shoulders to the chest through both sides of the neck, a partition wall provided within the buoyant body and dividing the interior of the hollow body into two rooms, and and a gas supply source that is connected to each other and starts supplying gas to each of the rooms at a time difference.

<Operation> According to the above means, even when falling into water, gas is first supplied to one chamber, and then gas is supplied to the other chamber. Therefore, even if you fall face down into the water, you will come up with one shoulder raised, and when you reach the surface, your body will rotate around once and fall onto your back, preventing you from suffocating. can be prevented. Furthermore, even if the floating objects come into contact with the buoyant body and the gas escapes from one chamber, the gas remains in the other chamber, so only the minimum level of buoyancy can be maintained.

<Example> This example includes an upper body part 2 and a lower body part 4 as shown in FIGS. 4 and 5. Upper body part 2
consists of a body part 6, sleeve parts 8, 8, and neck part 10 so as to cover the human body from the neck to the waist. The body portion 6 and the sleeve portions 8, 8 are made of a waterproof and cold-proofing material made of a waterproof film or sheet material with a heat insulating layer attached to the back side. Further, the neck portion 10 and the sleeve openings 12 of the sleeve portions 8 are made of a watertight and stretchable material such as neoprene foam.

The lower body part 4 has a pants-like part 14, and a sock-like part 16 is airtightly connected to the hem of the pants-like part 14. Further, a cylindrical covering part 1 is provided at the hem opening so as to cover from this to the instep of the sock-like part 16.
8 is also airtightly coupled. The pants-like part 14 and the sock-like part 16 are made of a waterproof and cold-proof material, and the covering part 18 is made of a waterproof material. In addition, 20 is a bondage string, which is provided at the knee part of the pants-like part 14, and is attached to the lower body part 4.
When wearing the
The knees are tied together in order to exhaust the air to the outside. A fixing band 21 is used to connect the upper body part 2 and the lower body part 4 in an airtight manner.

A buoyant body 22 is provided at the upper part of the body section 6. The buoyant body 22 is formed into a hollow body whose planar shape is approximately U-shaped, as shown in FIG. This buoyant body 22 is made of rubberized cloth, for example. The interior of this buoyant body 22 is airtightly partitioned into two rooms 26 and 28 by a semicircular section wall 24 which is in a relaxed state near its center. Gas supply sources 30 and 32 are provided in the chest-side portions of these two chambers 26 and 28. The gas source 30 is a gas for automatically providing buoyancy to the chamber 26 when falling into the water.
For example, it is configured to supply carbon dioxide gas. Further, the gas supply source 32 is configured to supply gas for giving buoyancy to the chamber 28 by manual operation.

A communication hole (not shown) is provided in the chamber 26, and this communication hole allows the air provided on the inner surface of the shoulder back portion of the body portion 6 to flow through the check valve 34 provided on the shoulder side of the body portion 6. It communicates with room 36. Further, the buoyant body 22 is mechanically coupled to the body portion 6 by the check valve 34 .

When a person wearing the waterproof and cold-proof life jacket constructed in this manner falls into seawater, for example, face down, gas is automatically supplied from the gas supply source 30 to the chamber 26, and the chamber 26 expands. At this time, partition wall 2
4 is in a convex state toward the room 28 side, and the room 2
Increase the volume of 6. The resulting buoyancy causes the wearer to float up with his right shoulder raised. At this time, the remaining air is supplied to the air chamber 36 as shown in FIG. 3 to prevent the chamber 26 from being destroyed and further increase the buoyancy. The wearer, who floats up with his right shoulder raised, turns over due to the reaction of the expansion of the chamber 26, and lies on his back. Thereafter, the gas source 32 is operated to supply gas to the chamber 28 as well, providing sufficient buoyancy to maintain the mouth and nose of the body at a significant height above the water surface. In addition, even if one of the rooms is damaged by drifting objects while floating, the partition wall 24 will be convex toward the damaged room, expanding the area of the remaining room and minimizing the decrease in buoyancy. Stop at.

In the above embodiment, the upper body part 2 and the lower body part 4 are formed separately, but they may be formed integrally. Further, although the buoyant body 22 has a U-shaped planar shape, it may have an annular or frame-shaped planar shape with a hole through which the neck passes.

<Effects> As described above, according to this invention, the buoyant body is divided into two rooms, and there is a time difference in the timing at which gas is supplied to these rooms.
When surfacing, the robot automatically changes from face down to back up to prevent suffocation. Furthermore, since it is divided into two rooms, even if one of the rooms is damaged, the minimum necessary buoyancy for floating can be maintained.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a buoyancy body used in an embodiment of the waterproof and cold protection life jacket according to this invention; Fig. 2 is a partially omitted side view showing the embodiment worn without the buoyancy body inflated; Figure 3 is a partially omitted plan view showing the same embodiment worn with the buoyant body inflated, Figure 4 is a front view of the same embodiment, and Figure 5 is a front view of the same embodiment.
The figure is a rear view of the same embodiment. 2... upper body part (main body part), 22... buoyant body,
24... Bulkhead, 26, 28... Room, 30, 32
...Gas supply source.

Claims (1)

[Scope of utility model registration request] A main body made of waterproof and cold protection material to cover at least the human body from the neck to the waist, a hollow buoyant body provided from the shoulders and back of the main body to the chest through both sides of the neck, and this buoyant body. A partition wall is provided inside the body and divides the interior of the hollow body into two chambers on the left and right in a relaxed state, and a partition wall is connected to each of the two chambers and starts supplying gas to each chamber with a time difference. A water-resistant and cold-proof life jacket equipped with a gas supply source.