JPS6124694A - Cold and water proof life jacket - Google Patents

Abstract

PURPOSE:To enable the remaining air chamber to be fully inflated maintaining the internal pressure even if an air chamber is partially damaged by dividing the air chamber into small ones, to each of which a gas passage is arranged with a check valve provided. CONSTITUTION:When one with a life jacket 1 falls down into sea by mistake while working, gas 11 discharged from an inflation unit 8 is admitted into an air chamber which is divided into small ones 2, through a chamber 7 and gas passages 4 with an inflation unit 8 actuated. Inflation will continue until the internal pressure in the chambers 2 builds up to the specified limit which actuates a check valve 5 attached to each of the chambers 2. The check valve 5 enables the chambers 2 to maintain the internal pressure, and also enables the remaining chambers 2 to maintain the internal pressure maintaining their buoyancy even if the chambers 2 are partially damaged. In case that gas is insufficient in volumn, the chambers can be inflated by breathing air through an auxiliary air blower 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cold-resistant and waterproof life jacket to be worn in preparation for accidents and disasters at sea.

[Prior art]

In preparation for marine accidents involving fishing boats, falling into the sea during fishing operations, and other disasters at sea in cold waters, workers are required to wear cold-resistant, waterproof life jackets during fishing operations. In such cold-resistant waterproof life jackets, especially when the jacket is inflatable to obtain buoyancy and the air chambers are divided into several, each air chamber can be inflated evenly using the minimum amount of inflation devices. is possible, and the gas that enters each air chamber does not flow backwards.
A gas passage is required that can maintain internal pressure and, even if one air chamber is damaged due to some influence, can maintain buoyancy while maintaining the remaining air chambers.

[Summary of the invention]

This invention was made in response to the above-mentioned demands, and includes a life jacket body having a plurality of independent air chambers, a gas passageway for sending gas to each air chamber through the air chambers, and a gas passageway for supplying gas to each air chamber. By providing an air supply device that supplies gas and a check valve that prevents gas from flowing into the gas passage from the air chamber, gas can enter each air chamber equally and maintain the internal pressure. The purpose of the present invention is to propose a cold-resistant, waterproof life jacket that is capable of providing sufficient buoyancy by maintaining the inflated state of the remaining air chambers while maintaining the internal pressure even if some of the air chambers are damaged.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a front view of a cold-resistant waterproof life jacket according to an embodiment of the present invention, FIG. 2 is a rear view thereof, FIG. 3 is a developed view thereof, FIG. Its A-A sectional view,
FIG. 6 is a sectional view taken along line BB, and FIG. 7 is a perspective view of the gas passage. In the figure, (1) is a workwear-type jacket as the main body of the lifesaving device, (2) is this jacket divided into multiple independent air chambers by air chamber dividing V tape (3), and (4) is this air chamber. Passage for sending gas or air to the chamber, (5) is the air chamber (2)
Gas passages (
4) Check valve provided at the outlet of air chamber (2), (6)
A pipe (7) is an expansion device (7) that maintains a passage space for gas or air in the air chamber dividing V tape (3) passing portion of the gas passage (4) arranged inside the gas passage (4).
A chamber (9) is connected to the gas passage (4) and provided at the side so that the gas discharged from the chamber (8) flows into the gas passage (4), and a chamber (9) is provided so that the air chamber (2) can be expanded by exhalation. The auxiliary air supply device (10) is attached to the chest and connected to the gas passage (4).

In the above configuration, the gas passage (4) is formed into a cylindrical shape by wrapping and gluing rubber cloth, etc., as shown in FIG. tape(
3) As shown in Figure 5, there is a pipe (6) in the part that passes above.
Glue the inside of the passage, and install a check valve (
5) is manufactured by adhering.

If you fall into the sea due to an accident, disaster, etc. while wearing the life jacket (1) constructed as described above, when you operate the inflation device (8), as shown by the arrow in Figure 3, The gas (11) discharged from the expansion device (8) is transferred to the chamber (7).
), from there it is sent to each air chamber (2) through the gas passage (4), and when the internal pressure of the air chamber (2) rises to a certain level, the check valve (5) closes due to the internal pressure and expands. is completed. Each air chamber (2) maintains the internal pressure by the check valve (5), and even if some of the air chambers (2) are damaged due to some influence, the remaining air chambers (2) will maintain the internal pressure. This creates buoyancy while keeping these air chambers (2) in an expanded state. If the amount of gas from the expansion device (8) is insufficient or if the gas escapes midway, use the auxiliary air supply device (
Air can be sent to each air chamber (2) by exhalation from 9), and in this case, as in the case of the expansion device (8), the internal pressure can be maintained by the check valve (5).

FIG. 8 is a developed view of a gas passage in another embodiment, and FIG. 9 is a perspective view of a portion thereof, in which the gas passage (4) is formed using a howrethane cloth by high-frequency welding. (
12) is a heat seal part. In this embodiment, the gas passage (4) and the chamber (7) can be integrally molded, and the jacket (1) can be attached by gluing the check valve (5), pipe (6), etc. to this in the same way as in manual processing. can be formed.

In addition, in the above Q explanation, the gas passage (4), the pipe (
6), the material, shape, structure, etc. of the chamber (7), etc. are not limited to those shown in the drawings, and can be changed. Also air chamber (2)
The formation of the V-tape (3) may also be performed by other means. Furthermore, although the above-mentioned embodiment relates to a workwear-type jacket, the invention can be similarly applied to a cold-resistant waterproof life-saving garment in which the upper and lower parts are integrated, and the same effects as described above can be obtained.

[Effects of the Invention] □ As described above, according to the present invention, the air chamber is divided into several parts and the gas passages equipped with check valves are arranged inside the air chamber, so that each air chamber can be equally spaced. It can be inflated and the internal pressure of the air chamber can be maintained by the action of the check valve, even if some of the air chambers are damaged.

The remaining air chambers can maintain an inflated state while maintaining internal pressure, thereby providing sufficient buoyancy.

[Brief explanation of drawings]

Fig. 1 is a front view of a cold-resistant waterproof life jacket according to an embodiment of the present invention, Fig. 2 is a rear view thereof, Fig. 3 is a developed view thereof, Fig. 4 is an enlarged view of a part thereof, and Fig. 5 6 is a sectional view taken along B-B, FIG. 7 is a perspective view of the gas passage, FIG. 8 is a developed view of the gas passage in another embodiment, and FIG. It is a perspective view of a part. In each figure, the same reference numerals indicate the same or corresponding parts, (1)
is the jacket, (2) is the air chamber, (3) is the air chamber dividing V tape, (
4) is a gas passage, (5) is a check valve, (6) is a pipe, (
7) is a chamber, (8) is an expansion device, and (9) is an auxiliary air supply device.

Claims (4)

[Claims] (1) A life jacket body having a plurality of independent air chambers, a gas passage that sends gas to each air chamber through the air chamber, an air supply device that supplies gas to this gas passage, and a gas passage from the air chamber. A cold-resistant waterproof life jacket characterized by being equipped with a check valve that prevents gas from flowing into the body. (2) The cold-resistant waterproof life jacket according to claim 1, wherein the gas passage has a pipe that maintains a gas passage space in the divided portion of the air chamber. (3) The cold-resistant waterproof life jacket according to claim 1 or 2, wherein the air supply device is an expansion device that supplies stored gas and an auxiliary air supply device that supplies air by exhalation. (4) The cold-resistant waterproof life jacket according to any one of claims 1 to 3, characterized in that a check valve is provided at the outlet of the gas passage.