JPH08104291A - Float to be expanded and formed in the water - Google Patents

Abstract

PURPOSE: To provide a float which is not bulky when it is stored and a person wears it, becomes a sufficient floating body rapidly without any operation, and is expanded and formed in the water. CONSTITUTION: A hole 3 is provided in a part which is close to a bottom of a float 1. A recessed valve 2 which has a valve hole 4 which coincides with the hole 3 and adheres to the float 1 and a projected valve 5 which has a projection fitting in the recessed valve 2 are provided by joining the projected valve 5 on the recessed valve 2 in its upper section. A foaming agent 6 is sealed in the bottom of the float 1. Consequently, since the float is expanded only in the water, it can be stored in a small space, and it is very advantageous for emergency evacuation and ordinary action even when a person wears it. It is safe for a person who cannot swim because he/she can get buoyance rapidly without operating it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating bag which is deflated in air and expands and forms in water.

[0002]

2. Description of the Related Art Conventionally, a buoyancy body is a buoyancy bag filled with air or a very light material. Such a buoyancy body has a large volume, requires a large storage space, and when worn as a lifejacket, it is often used. There are many obstacles to the emergency evacuation of
Even normal behavior is a big obstacle. There are also buoyant bodies that blow compressed air by pushing buttons and pulling strings, but when a person who cannot swim suddenly falls into the water,
There is a possibility that you cannot operate that much because of dismay.

[0003]

SUMMARY OF THE INVENTION The present invention is
The present invention provides a floating bag which is inflated and formed in water, which has a small volume even when worn and expands without any operation when in water.

[0004]

According to the present invention, an opening hole 3 is provided in a portion close to the bottom of a floating bag 1, and a concave valve 2 that has a valve hole 4 corresponding to the opening hole 3 and is in close contact with the floating bag 1, and a valve. A convex valve 5 having a convex portion that fits into the hole 4 is provided by being joined to the concave valve 2 at the upper portion, and means for enclosing the foaming agent 6 in the bottom portion of the floating bag 1 is provided.

[0005]

In the present invention, since the above-mentioned means is taken, when this is put into water, water flows in from the opening hole 3 and the foaming agent 6 generates gas and fills the inside of the floating bag 1. The pressure stops the inflow of water, and on the contrary, the water is pushed out and the convex valve 5 is closed. When the pressure further increases, the valve hole 4 is completely sealed and the floating bag 1 is completed as a buoyancy body.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described in more detail below.

In this embodiment, a soft vinyl chloride sheet is airtightly attached to the floating bag 1, the concave and convex portions are made of silicone rubber, and the foaming agent 6 crushes the bathing agent into small pieces and encloses it.

The concave bulb 2 has a concave lens shape and a spherical inner surface as shown in the drawing. The valve hole 4 is tapered so that the outside becomes smaller, and the convex valve 5 has a shape in which the spherical surface and the valve hole 4 are brought into close contact with each other to enhance the sealing effect. Silicon rubber does not adhere to pressure.

When this embodiment is put into water, water flows in from the opening 3 and carbon dioxide gas is suddenly generated from the foaming agent 6, and the pressure stops the water from flowing in. Is pressed against the concave valve 2 to seal it. The buoyancy is enough to support the human body in less than 10 seconds, carbon dioxide does not leak in 30 seconds, and it is completed in about 45 seconds. The foaming agent 6 is 4 g and forms a floating bag having an internal volume of about 550 cc.

[0010]

INDUSTRIAL APPLICABILITY The present invention can be used as a life preserver such as a life preserver in a floating ring shape or by attaching a necessary amount to the waistcoat. In either case, it requires less space for storage and is not bulky to wear, which is extremely advantageous in the case of emergency evacuation, and there are almost no restrictions on activities such as narrow boats and fishing. In addition, even if a person who cannot swim suddenly falls into the water, he / she can quickly obtain sufficient buoyancy without any operation.

[Brief description of drawings]

FIG. 1 is a lower sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a concave valve of the present invention.

[Explanation of symbols]

 1 ・ ・ Floating bag 2 ・ ・ Concave valve 3 ・ ・ Opening hole 4 ・ ・ Valve hole 5 ・ ・ Convex valve 6 ・ ・ Foaming agent

Claims (1)

[Claims] 1. A concave valve 2 provided with an opening hole 3 near a bottom portion of a floating bag 1 and having a valve hole 4 coinciding with the opening hole 3, and a concave valve 2 closely attached to the floating bag 1 and a convex portion having a convex portion engaging with the concave valve 2. A float bag formed by expanding in water, in which a valve 5 is provided so as to be joined to the concave valve 2 at an upper portion thereof, and a foaming agent 6 is enclosed in a bottom portion of the float bag 1.