JPH08143263A - Fire extinguisher for passenger conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a fire extinguishing device for a passenger conveyor that has a simple structure and can extinguish a fire in the initial state of ignition. [Composition] A plurality of steps connected endlessly and circulating between two entrances and exits, skirt guards provided adjacent to both sides of this step row, and arranged below the step row, A fire extinguishing device for a passenger conveyor, comprising an oil pan that receives oil, dust, sand, etc. falling from above, and a fire extinguishing agent 7 enclosed in a container that partially or wholly melts at a relatively low temperature. There is.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing device for passenger conveyors such as escalators and auto lines.

[0002]

2. Description of the Related Art Conventionally, as a device of this kind, a device has been used.
As described in Japanese Laid-Open Patent Publication No. 5-37580, a sensor that detects and operates when heat or a fire occurs near a step reversal portion in the truss, that is, near the entrance / exit, and
It is known that a spout for extinguishing substances is provided.

[0003]

However, in the above-mentioned conventional device, although it is possible to extinguish the fire by extinguishing the extinguishing substance from the ejection port by the operation of the sensor, the sensor is provided in the step reversing portion. Therefore, it takes a considerable amount of time for the sensor to operate after ignition, and when the sensor operates, the vicinity of the ignition point is burned out.

An object of the present invention is to provide a fire extinguishing device for a passenger conveyor which can extinguish a fire in an initial state of ignition with a simple structure.

[0005]

The above object is to provide a plurality of steps which are connected endlessly and which circulate while traveling between two entrances and exits, and skirt guards provided adjacent to both sides of this row of steps. And a fire extinguishing device for a passenger conveyor, which is arranged below the step row and receives oil, dust, sand, etc. falling from above, in a fire extinguishing apparatus for a passenger conveyor, above the oil pan and to the side of the step row. This is achieved by disposing an extinguishing agent enclosed in a container that partially or wholly melts at a relatively low temperature at a position.

[0006]

With the above-mentioned structure, when the dust accumulated on the oil pan is ignited by the cigarette or the like dropped from the gap between the step and the skirt guard or the gap between the steps, the heat immediately above the fire extinguisher. The container breaks and the fire extinguishing agent inside is scattered and falls near the ignition point, which extinguishes the fire.

Since the container melts at a relatively low temperature, the container melts shortly after ignition. As a result, the fire can be extinguished in the early stage after ignition, and the area around the ignition point is only slightly burned off, and it is possible to prevent the spread and burning of fire to other areas.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, a plurality of 1 are connected endlessly,
Steps that circulate while traveling between two entrances and exits, 2 are skirt guards provided adjacent to both sides of the step row, and 3
Is an oil pan disposed below the row of steps to receive oil, dust, sand, etc. falling from above, 4 is a guide rail for circulating the step while running, and 5 is a guide rail for fixing the guide rail. It is a fixed angle for. Reference numeral 6 is dust and sand accumulated on the oil pan, and reference numeral 7 is an extinguishant enclosed in a container that partially or wholly melts at a relatively low temperature. Next, the operation of this embodiment will be described. When the dust 6 accumulated on the oil pan 3 is ignited by a cigarette or the like dropped from the gap between the step 1 and the skirt guard 2 or the gap between the steps 1, the extinguishing agent 7 is applied to the guide rail 4 and the guide rail fixing angle 5. Since it is installed above the oil pan 3 and laterally of the step 1,
As shown in FIG. 2, it covers the entire inner part of the escalator truss. Further, as shown in FIG. 1, since the extinguishing agent 7 is installed even up to the center of the guide rail fixing angle 5, even if the ignition occurs at any place in the truss, the heat immediately extinguishes due to the heat. The agent container melts at a relatively low temperature and breaks, and the extinguishant inside is scattered and falls near the ignition point, enabling extinction at an early stage after ignition.

[0009]

As described above, according to the present invention, when the dust accumulated on the oil pan is ignited by the cigarette or the like dropped from the gap between the step and the skirt guard or the gap between the steps, the heat of the dust causes a true result. The fire extinguisher container on the top broke, and the fire extinguisher inside fell into the vicinity of the ignition point while scattered, which extinguished the fire.

Since the container melts at a relatively low temperature, the container melts shortly after ignition. As a result, the fire can be extinguished in the early stage after ignition, and the area around the ignition point is only slightly burned off, and it is possible to prevent the spread and burning of fire to other areas.

[Brief description of drawings]

FIG. 1 is an enlarged front view of a passenger conveyor according to an embodiment of the present invention.

FIG. 2 is a side view showing the entire passenger conveyor according to the embodiment of the present invention.

[Explanation of symbols]

 1 Step 2 Skirt guard 3 Oil pan 4 Guide rail 5 Guide rail fixed angle 6 Dust 7 Fire extinguisher

Claims (1)

[Claims] 1. A step which is connected endlessly and circulates between two entrances and exits, a skirt guard provided adjacent to both sides of the step, and a step arranged below the step. In a fire extinguisher for a passenger conveyor, which is equipped with an oil pan that receives oil, dust, sand, etc. falling from above, a part or all of the fire extinguishing device is located above the oil pan and laterally of the steps. A fire extinguisher for a passenger conveyor, characterized in that a fire extinguishing agent enclosed in a container that melts at an extremely low temperature is arranged.