JPS6181291A - Cover device of air filling device - Google Patents

Abstract

PURPOSE:To operate an air filling device simply securely only in necessary time by providing inner and outer covers for preventing the entrance of water from above and below in the air filling device to open a portion of an outer cover in an emergency and expose the air filling device to the interior of water. CONSTITUTION:When a gypsum sensor 13 is melted by water introduced from a fit gap 14 or the like between a body 2 and a housing 3 and water introduced from a hole 14 in a cap 4, a push rod 15 is pushed up by a spring 16 to push up a firing needle through a rod 17. Thus, a sealing plate 19 of a CO2 container 1 is broken through to send the gas from a path 31 in a body 2 to a life jacket which is expanded. In said air filling device A, an outer cover 27 is normally folded in to cover an inner cover 1. And in an emergency, a fastener 29 is removed to expand an outer cover 27, introduce water from below into the inner cover and immediately immerse the air filling device A in water. Thus, the gypsum sensor 13 is operated to operate the air filling device A.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention [Field of Industrial Application] The present invention relates to a filling device (self-inflating type) for a work life jacket.

[Conventional technology]

The above-mentioned air filling device is attached to be exposed on the outer surface of the work life jacket.

[Problem that the invention seeks to solve]

When a work life jacket is immersed in seawater or fresh water, the inflation device must activate and inflate within 10 seconds.

On the other hand, in a water spray test in a test tank in which a total of 3.7817 mm of water was sprayed from 12 nozzles, 15
It is a regulation that W must not swell within a minute. In addition, it must be ensured that it will not fall even if exposed to normal waves, rain, etc.

However, the air filling device has a built-in gypsum sensor that, when dissolved by water, sends carbon dioxide gas into the life table and causes it to expand, so it is activated during the above-mentioned water sprinkling test or even when exposed to rainwater. There is a problem.

The present invention aims to satisfy the above contradictory conditions.

Structure of the Invention [Means for Solving the Problem] When the filling device enters water, water enters the gypsum sensor section from the L side and below, dissolves the gypsum, and activates the firing pin to release CO2.
In a filling device that pumps CO2 gas by piercing the sealing plate of a container, the air supply device A is covered with an inner cover from above that prevents water from entering from above, and also prevents water from entering from below. An outer cover is placed over the outside of the cover, and in an emergency, a part of the outer cover is opened to expose the filling device A underwater.

[For production]

During normal times, the air filling device is covered with inner and outer covers to prevent water from splashing on it, so it will not operate due to water spray tests, waves, rain, etc.

In an emergency, the desired operation can be performed by opening the outer cover.

[Example] In Fig. 1, l is a CO7 container, 2 is a container podium, 3 is a housing whose upper part is fitted into the lower part of the podium 2 from the outside and connected by a connecting bottle shaft 5, and 4 is a housing 3. 6 is a manual lever that rotates around the bottle shaft 5, which is attached to the bottom half of the POD 2 during normal times.
When the automatic mechanism is not operating, the charging device is operated by pulling it out via the grip ball 7 and cable 8.

Reference numeral 9 denotes a non-return valve body fitted into the side hole 21 of the POD 2, 10 its retaining bag nut, and 11 a rubber seat shrink-fitted to the non-return valve body 9, which is attached to the airtight rubber cloth 12 of the lifesaving suit for work. There is.

FIG. 39 In FIG. 4, a gypsum sensor 13 is provided in the housing 3, and a fitting gap 14 between the podium 2 and the housing 3 is shown.
When the sensor 13 is melted by water entering from above through the hole 14 of the cap 4, etc., the push rod 15, which used the sensor as a stopper, is moved by the spring 1.
6, the firing pin 18 is pushed up via the intermediate rod 17 and breaks through the sealing plate 19 of the CO7 container 1, and the gas flows from the passage 31 in the pod 2 to the intermediate 2 in the non-return valve body 9.
0 is pushed open and sent to the life jacket, which inflates.

The structure of the above charging device is, for example, HALKEY ROBB.
Since it is well known as the 840-ANAL type manufactured by ERTS IN GORP, its details will be omitted. Note that when the manual lever 6 is operated, the cam 61 at the tip pushes up the firing pin 18.

In the present invention, a cover is attached to the above-mentioned air filling device. Reference numeral 21 is a rubber cover whose lower surface is open, and which is placed over the CO2 container 1 from above, and the opening 22 on the upper surface is tightly attached to the container 1 by tightening. fit into place. The lower surface extends to the lower end of the air filling device, and an appropriate gap 23 is placed between it and the air filling device. 24 is a cut through which the non-return valve body 9 escapes.

27 is an outer cover made of rubberized cloth, its - side 27 is fixed to the life jacket by sewing or gluing, etc., and as shown in Fig. 3, the inner cover 21 is covered with an appropriate gap 28, and the free side is fixed. Attach the side 272 to the life jacket with a hook-and-loop fastener 29 or the like. As shown in FIG. 2, the lower part of the outer cover 27 is folded into the life jacket below the inflator cap 4, and the end 273 is fastened with a fastener 29.

30 is a water drain hole provided on the folded bottom surface.

During normal times, the outer cover 27 is folded in to cover the inner cover 21 as shown in Figures 1 and 2. Therefore, even if water is sprayed during a water spray test, wave Φ rain, etc., the water from the top opening of the outer cover 27 will travel along the outer surface of the inner cover 21, pass through the space 28, and fall from the hole 30 on the bottom of the charging device. I almost never go inside. Water from below is blocked by the bottom surface of the outer cover 27 and does not enter through the hole 13 of the cap 4.

In case of an emergency, when the fastener 29 is removed and the outer cover 27 is opened as shown in Fig. 3, 9, 4, water enters the inner cover 21 from below, and at that time, the air in the space 23 flows through the hole 25 into the backflow valve 2.
6 is pushed open and escapes, so the filling device immediately soaks into the tree.

Therefore, water enters from above and below and acts on the gypsum sensor 13,
It operates within the specified 10 seconds.

C. Effects of the invention A simple configuration can satisfy the unfavorable condition in which the inflating device of a life jacket for work is operated correctly within a specified time, but does not operate during a water spray test, etc. effective.

[Brief explanation of the drawing]

The drawings illustrate the present invention; FIG. 1 is a partially vertical front view, FIG. 2 is a partially vertical side view, FIG. 3 is a plan view, and FIG. 4 is a vertical sectional view of the filling device. Figure 5 is a cross-sectional view of the non-return valve section. A is the charging device, 13 is the plaster sensor, 18 is the firing pin, l is C
O2 container, 19 is a sealing plate, 21 is an inner cover, 27 is an outer cover, 29 is an outer cover opening/closing fastener, 32 is a connecting member between the boot 2 shroud 15 and the intermediate rod 17, 33 is an intermediate rod guide integrated with the housing 3 .

Claims (1)

[Claims] (1) When the filling device enters water, water enters the gypsum sensor section from above and below, dissolves the gypsum, and activates the firing pin, which pierces the sealing plate of the CO_2 container and sends in CO_2 gas. In the filling device, an inner cover is placed over the filling device from above to prevent water from entering from above, and an outer cover is placed over the above cover to prevent water from entering from below, and in case of an emergency, the above A cover device for a charging device configured to expose the charging device underwater by opening a portion of the outer cover.