JP2006263374A - Smoke-proof elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems wherein, because the cost of a home elevator is around 2,000,000 yen, an elevator installation cost becomes twice as much, it becomes difficult for the average person to install the home elevator in his/her own house, while the elevator maker has a problem of stagnation of its sale, which also becomes a large problem as the whole business field, the development of a tightly closed elevator for preventing the entering of the smoke costs a lot and is impossible in a present depression, the development of a tightly closed elevator door preventing the entering of the smoke also costs a lot and become a cause of trouble in the home elevator industry. <P>SOLUTION: This smoke-proof elevator prevents the smoke from entering into the elevator by passing and removing the air in front of the elevator door. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to an elevator.

A conventional elevator has a car 1 in a chimney-like elevator building (shut) 4 as shown in FIG. 1, and a car door 2 and an entrance door 3 provided in the housing or the elevator building 4 in front of the car door 2. A minimum clearance of 4 millimeters is required to open and close these doors. Smoke 5 from the fire entered the elevator building 4 and the car 1 through this gap, and the smoke was carried to the upper floor by the chimney effect of the elevator building 4 to expand the disaster, resulting in a large number of deaths in the Shinjuku building. As a result, the hoistway was obliged to be equipped with disaster prevention equipment with flameproof and smokeproof performance due to the amendment of the Building Standards Act construction order.
Therefore, the iron door 6 is provided in front of the elevator as shown in FIG. 2, or the flexible sheet-like shutter 7 that is held up and down by the frame 8 is provided in front of the elevator as shown in FIG. According to the prior art, the sheet shutter 7 that has been placed above the elevator entrance descends due to gravity to block the elevator entrance and prevent smoke from entering.

  The Building Standard Law has been amended from the Shinjuku Building Fire, and in order to clear it, the conventional technology requires 600,000 to 700,000 yen per elevator on the first floor, and approximately 2.8 million yen in the case of the first floor 3 stories. Since home elevators are around 2 million yen, elevator installation costs more than double, making it difficult for people to attach home elevators to homes. Yes. However, the development of an elevator that seals out smoke is enormous, and is impossible in the current recession. It is an invention of a smoke-proof elevator that clears the Building Standards Act Amendment Order without developing a new elevator according to the present invention.

    The air in front of the elevator door is fluidized and removed by, for example, reducing pressure by communicating with the outside air in front of the elevator door so that smoke does not enter the elevator.

The new Building Standards Law was enforced by the recent fire in Shinjuku building, and in order to clear this, it is necessary to attach the devices as shown in Fig. 2 and Fig. 3, which increases the cost, and the elevator doors emit smoke. Development of doors that are sealed to prevent entry is costly and has become a headache for the home elevator industry. In the prior art, it costs about 600,000 to 700,000 yen per elevator floor, and it costs about 2.8 million yen for the first basement floor and the third floor. Since home elevators are around 2 million yen, the cost of elevators more than doubles, making it difficult for people to attach home elevators to homes, and the sales of elevator manufacturers have recently stagnated, creating a major problem for the industry as a whole. Yes. The present invention does not increase the cost and can prevent a disaster at the time of a fire. Therefore, it becomes easy to attach a home elevator on a budget, and thus the demand for the home elevator is increased, so that the production of the home elevator is increased, and therefore the home elevator is increased. The elevator industry is delighted and this is an extremely innovative and important invention in the industry that will eventually recover the recession in Japan and contribute to Japan.

The present invention will be described below with reference to the drawings.
FIG. 4 shows a cross section of the building and the elevator according to the embodiment of the present invention. The building 17 according to the present invention is provided with a vent 10 and a slit 11 that communicates with the vent 10 and the front of the elevator. The slit 11 is an elongated slit from the slab to the slab. An open / close window may be provided here. Enter the entrance 18 from the entrance door 14 of the building 17, then open the elevator hold 19 and enter the elevator hall 13. Although the elevator hall 13 is at atmospheric pressure, the blow-through 10 is in a depressurized state because air escapes upward due to the chimney effect. By designing exhaust 26 from a room in the building 17 and exhausted warm air 27 from the kitchen or the like to the blowout 10, the air in the blowout is further raised to reduce the pressure in the blowout. Therefore, since the blow-through 10 is more negative than the pressure in the elevator hall 13, the air flows from the elevator hole 13 through the slit 11 into the blow-through 10 as 12. Therefore, even if a fire breaks out and smoke enters the elevator hall 13, the smoke is guided to the blow-through 10 through the elevator front slit 11, and the smoke does not enter the elevator door 13, the car door 2, or the elevator ridge 4, so the smoke is not on the other floor. Does not spread.
FIG. 5 shows a longitudinal section around the elevator of the present invention.
FIG. 6 is also an example of the embodiment of the present invention, and a chimney 15 is provided outside the slit 11 provided in the wall 28 of the elevator landing 13. Since the air in the chimney 15 always rises, it is in a decompressed state, and the smoke 12 does not enter the elevator building 4 but is led to the chimney 15 and exhausted, and no smoke enters the elevator 1.
FIG. 7 is also an embodiment of the present invention, which is an example of the present invention in which the fans 16 are arranged vertically on the wall 28 of the elevator hall 13 in front of the elevator door 3 and forced exhaust 20 is performed, so that smoke does not enter the elevator 4 and is exhausted. .
In addition, the present invention also includes a case where an air conditioner 23 and a heat exchanger ventilator (Lossnai) 21 are provided in place of the fan 16 and the smoke before the elevator is exhausted to the outside while air-conditioning around the elevator hall 13 and ventilation. (FIG. 8 is a longitudinal sectional view thereof). Further, the present invention includes a case where the flameproof shutter 7 shown in FIGS. 2 and 3 is provided and the slit 11 of the present invention is used in combination.
In addition, as shown in FIG. 9, the slits are made horizontal as 11 ′, the vertical slits 11 and the horizontal slits 11 ′ are combined, the fan 22 is provided on the ceiling of the elevator building 4 as shown in FIG. Inclined ceiling 30 for bending right angle and corresponding to the slope on the north side, louver 38 is provided, hole 37 is formed in vertical wall 31 of building 4 and fan 29 is provided, or fan 25 is directed upward at bottom 32 of the elevator building. Or the fan 34 is provided on the ceiling 33 in the elevator car 1 or the fan 24 is provided below the floor 35 of the elevator car 1 to increase the air pressure in the elevator building 4. The air pressure rises, and the air passes from the elevator building 4 to the outside through the door 3. Also, since the smoke flows out of the elevator car 1 through the doors 2 and 3, various modifications and combinations are conceivable, such as the present invention in which the smoke does not penetrate into the elevator car or the building, so that the fire smoke does not spread to other floors. However, anything based on the idea of the present invention that discharges smoke in front of the elevator door is included in the present invention.

Cross section of a known elevator Cross section of a known elevator with iron doors Cross-sectional view of a known elevator provided with a sheet-shaped smoke barrier Cross section of the building of the present invention Vertical sectional view of the slit part of the present invention Cross section of the present invention in which a chimney is provided outside the slit in front of the elevator Cross section of the present invention by a fan The longitudinal section of the present invention using an air conditioner or a heat exchanger ventilator (Lossnai) Vertical view of the present invention with a horizontal slit Example of the present invention in which a fan is provided in an elevator building or an elevator car

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Car doorway door 3 Door entrance door provided in the case side 4 Elevator building 5 Smoke 6 Smoke shield iron door 7 Sheet-shaped smoke shield shutter 8 Guide 9 which guides up and down of shutter 9 Smoke detector 10 The present invention blowout of smoke 11 Slit in front of the present invention 12 Air and smoke sucked from the slit 13 Hall 14 in the elevator hall 14 Entrance door 15 of the building Smoke stack of the present invention 16 Smoke of the present invention 17 Fan of the present invention 17 Entrance 18 Door 19 Elevator hold door 20 Smoke forcibly exhausted by the fan in front of the invention 21 Heat exchanger ventilator (Lossnai) used for exhaust of the present invention
22 A pressure fan provided on the ceiling of the elevator building of the present invention 23 An air conditioner used for exhaust before the present invention 24 A pressure fan provided on the bottom 35 of the elevator cage of the present invention 26 A pressure fan provided on the bottom of the elevator building of the present invention 26 In the building 17 Exhaust from a room 27 Exhaust from a kitchen, etc. 28 Wall 29 in front of the elevator 13 Hole 37 provided in the upper vertical surface 31 of the present elevator tower
The pressure fan 30 provided in the elevator building 31 The inclined ceiling of the elevator building 31 The upper vertical wall 32 of the elevator building 32 The elevator building bottom 33 The elevator cage ceiling 34 The pressure fan 35 provided in the elevator cage ceiling 33 36 The elevator elevator under the elevator cage floor Air 37 squeezed out from the door 3 by the pressure fan in the building 38 A hole 38 provided in the vertical wall of the elevator building of the present invention An openable / closable louver provided in front of the hole 37

Claims (1)

A flameproof elevator apparatus characterized in that smoke is prevented from entering the elevator by removing the air in front of the elevator door.