JPS6113009Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fire hose equipped with an electric wire, which is used to amplify and transmit a water release/stop command from a pipe operator to a mechanical operator during fire extinguishing operations.

Conventional fire hoses of this type include those in which electric wires are woven directly into the structure of the hose, and those in which electric wires are sandwiched between a double-layered hose.

However, in both cases, the fire hose has a wide range of expansion and contraction, making it easy for the wire to break, resulting in poor durability, and the need to make the wire thinner so that it does not become an obstacle when winding it up, which increases the risk of wire breakage. Ta.

This invention is intended to address the above-mentioned circumstances and provide a fire hose that is highly durable and can be easily wound up in almost the same way as conventional hoses.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a plan view showing a fire hose 1. FIG. An insulated wire 4 having a male connector 2 or a female connector 3 at both ends is attached to the fire hose 1 by an electric wire cover 5 linearly attached along the longitudinal direction on the outer surface of the hose. There is.

2 to 4 are cross-sectional views showing how the insulated wire 4 is attached to the fire hose 1. FIG. The insulated wire 4 is longer than the fire hose 1 in a straight line, and its intermediate portion is bent into a waveform as shown in FIG. As shown in FIG. 3, the insulated wire 4 formed in this way is attached to both sides 6 of an elongated wire cover 5 made of stretchable cloth or the like.
A bag-shaped portion 7 is formed by pasting a part of the outer surface of the fire hose 1 in a straight line along the longitudinal direction with an adhesive or the like.
It's decorated. The reason why the insulated wire 4 is attached to the fire hose 1 in this way is that when a fire engine sprays water, the water passing through the fire hose 1 at high pressure causes the fire hose 1 to become round as shown in Fig. 4. This is to prevent the insulated wire 4 from breaking by stretching the length of the insulated wire 4 by the same amount as the length of the fire hose 1 since it is stretched into a rod shape and its length increases. According to an experimental example, the elongation of fire hose 1 when discharging water is approximately 65 cm when the water discharge pressure is 10 kg/ ^cm2.
showed an increase in

Therefore, the length of the insulated wire 4 is desirably longer than the fire hose 1 by about 1 m to 1.5 m. Although the insulated wire 4 is bent in a wavy shape in FIG. 2, it is not limited to this; for example, it may be bent into a spiral shape like a telephone cord. 15, 16
is a fire hose connection fitting.

Since the fire hose of this invention is constructed in this way, it can quickly respond to the increase in the number of wires attached to the tip of the tube as the functions of the fire engine increase, as there is no restriction on the diameter of the electric wire.
Furthermore, when winding up the winding device, it can be wound up without much effort, almost in the same way as in the conventional case. Of course, there is no risk of disconnection.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the fire hose of the present invention, and FIGS. 2 to 4 are enlarged sectional views of the fire hose. 1... Fire hose, 2, 3... Connection tool, 4...
Insulated wire, 5...Wire cover.

Claims (1)

[Scope of utility model registration request] An insulated wire with connectors at both ends and a stretchable middle portion is placed inside a stretchable bag-shaped wire cover that is linearly attached along the longitudinal direction on the outer surface of the hose. A fire hose characterized by having a interior.