JP2012176814A - Evacuation elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an evacuation elevator device for preventing the entry of flame from a hall into a car.SOLUTION: The evacuation elevator device includes a car door provided in the doorway of a car, a hall door disposed at a landing, an elevator controller for controlling the operation of an elevator, and a fireproof sheet driving unit installed in an upper part of the car door front of the car. The elevator controller inputs a fire signal from the external, and sends an operation signal to the fireproof sheet driving unit. The fireproof sheet driving unit receiving the operation signal suspends a fireproof sheet.

Description

  Embodiments described herein relate generally to an evacuation elevator apparatus.

  When smoke-shielding performance is required at the elevator entrance / exit, it has been proposed to install a shutter or screen having fireproof / flameproof performance at the elevator entrance / exit (see, for example, Patent Document 1 and Patent Document 2). .)

  In the event of a fire in the building where the elevator is installed, if the car responds by welding the hall call button on the floor where the fire occurred or the elevator user evacuates from another evacuation route due to the expansion of the fire after registering the hall call In addition, when the elevator door opens after the elevator arrives in response to the call, flames from the hall may enter the car.

JP 2007-320687 A JP 2004-244131 A

  The problem to be solved by the present invention is to provide an evacuation elevator apparatus that prevents a flame from entering a car from a hall.

  The elevator device for evacuation of the embodiment includes a car door provided at the entrance of the car, a hold door arranged at the landing, an elevator control device for controlling the operation of the elevator, and an upper front of the car door of the car. The elevator control device that is provided with a fireproof sheet drive device that is provided, and that has input a fire occurrence signal from the outside, sends an operation signal to the fireproof sheet drive device, and the fireproof sheet drive device that has received the operation signal, Let the fireproof sheet hang down.

It is a figure showing the composition of the outline of the elevator apparatus for evacuation concerning the embodiment of the present invention. It is a schematic sectional drawing of the elevator apparatus for evacuation which concerns on 1st Embodiment. It is the conceptual diagram which looked at the car side in the state which the car door opened from the hall side. It is a schematic sectional drawing of the elevator apparatus for evacuation which concerns on 2nd Embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same portions are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
FIG. 1 is a diagram showing a schematic configuration of an evacuation elevator apparatus according to an embodiment of the present invention. As shown in FIG. 1, in the elevator, a car 1 is suspended by a wire rope 2 in a hoistway (not shown). At the other end of the wire rope 2, a counterweight (hereinafter referred to as “C / W”) 3 that is balanced with the car 1 is suspended. The car 1 and the C / W 3 are raised or lowered by driving the driving motor 4. The motor 4 is rotationally controlled by an elevator control device 5. A fire alarm 6 is disposed in a region between the wire rope 2 and the landing (not shown) in the hoistway or in the landing.

  FIG. 2 is a schematic cross-sectional view of the evacuation elevator apparatus according to the first embodiment. FIG. 3 is a conceptual diagram of the car side as viewed from the hall side with the car door open.

  In the elevator apparatus, a car door 7 is provided at the entrance of the car 1, and a hold door 8 is disposed at the hall. A fire occurrence signal from the fire alarm 6 or the like is input to the elevator control device 5. The operation of the car 1 is controlled in various operation modes by commands from the elevator control device 5.

  A fireproof sheet driving device 9 is disposed on the front upper portion of the car door 7 of the car 1. The fireproof sheet driving device 9 is a device that drives a rollable fireproof sheet 10 that can be rolled up.

  Normally, the refractory sheet 10 is wound up inside the refractory sheet driving device 9. When the fire control signal is received from the fire alarm 6 or the like when the fire is generated, the fireproof sheet driving device 9 is operated, and the fireproof sheet 10 is suspended from the inside to the outside.

  Even if the elevator stops in the event of a fire and the car door 7 is opened, the fire-resistant sheet 10 preferably has a size that covers the car door 7 so that the flame-proof sheet 10 can avoid flame intrusion. . That is, the vertical dimension is approximately the same as the height dimension of the car door 7. The lateral dimension is equal to or larger than the width dimension of the doorway of the car door 7 and is approximately the same size as the door panel of the car door 7.

  The fireproof sheet 10 is preferably divided into two parts in the longitudinal direction from the center part. This is because the movement of passengers from within the car 1 is facilitated. In this case, it is preferable that the upper end side of the refractory sheet 10 is connected, for example, “goodwill”, and has no cut portion. In general, fire smoke rises because it is lighter than air. Therefore, the smoke rising upward is made difficult to enter the car 1 through the gap between the fireproof sheets 10 divided into two.

  In addition, it is preferable to make it difficult for smoke to enter from the lower gap of the fireproof sheet 10 by attaching a weight or using a reinforcing cloth, for example, to the lower end portion of the fireproof sheet 10.

  The fireproof sheet 10 is preferably translucent, for example, a sheet with a lighting rate of about 60%. This is because the outside can be seen from the inside of the car 1, so that the car 1 can be safely entered and exited.

  The fireproof sheet 10 is nonflammable and flameproof. For example, use one that conforms to the provisions of Building Standard Act Article 2-9 and Article 108-2 Article 1 to Article 3 (Incombustible Materials). For example, a fireproof sheet obtained by coating a 100% glass fiber base fabric with a polyvinyl chloride (PVC) resin is suitable.

  The refractory sheet driving device 9 normally wraps the refractory sheet 10 around, for example, a substantially cylindrical take-up drum, and receives a signal from the elevator control device 5 when a fire occurs, and hangs down from the take-up drum.

  After the passenger evacuates from the car 1, the fireproof sheet 10 may remain down. This is because the elevator is maintained after the fire is extinguished, and at that time, cleaning and the like are also performed.

  According to the first embodiment, in the event of a fire, even when the elevator stops and the car door 7 opens, the intrusion of flame can be avoided by the fireproof sheet 10 installed on the front surface of the car door 7.

(Second Embodiment)
Next, a second embodiment will be described. FIG. 4 is a schematic cross-sectional view of an evacuation elevator apparatus according to the second embodiment. In the second embodiment, the air curtain device 11 is arranged on the front surface of the fireproof sheet driving device 9, that is, on the car door 7 side. The air curtain device 11 creates an air flow from the upper side to the lower side along the fireproof sheet 10 in the event of a fire to prevent intrusion of outside wind into the car 1. In the air curtain device 11, for example, a rectifying plate is provided on the exhaust side of the propeller fan, and a curvature is provided in the exhaust passage. A structure that flows downward is preferable. It is preferable that the air curtain device 11 operates after the fireproof sheet 10 hangs down when a fire occurs.

  According to the second embodiment, when the passenger gets in and out of the car, even if the fireproof sheet 10 is scraped, there is an air flow from the upper side to the lower side, so that the intrusion of the flame is avoided. Can do.

  As described above, according to the present embodiment, it is possible to prevent the flame on the hall side from entering the elevator even when the elevator door is opened on the fire occurrence floor.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Car 2 ... Wire rope 3 ... Counterweight 4 ... Motor 5 ... Elevator control device 6 ... Fire alarm 7 ... Car door 8 ... Hold door 9 ... Fireproof sheet drive device 10 ... Fireproof sheet 11 ... Air curtain device

Claims (10)

A car door provided at the doorway of the car,
Holda placed at the landing,
An elevator control device for controlling the operation of the elevator;
A fireproof seat driving device disposed on the front upper part of the car door of the car,
The elevator control device to which a fire occurrence signal is input from the outside sends an operation signal to the fireproof sheet drive device, and the fireproof sheet drive device that receives the operation signal causes the fireproof sheet to hang down.   The evacuation elevator apparatus according to claim 1, wherein the fire occurrence signal is output from a fire alarm installed in a building.   The evacuation elevator apparatus according to claim 1, wherein the fireproof sheet is divided into two in the longitudinal direction from the central portion.   The evacuation elevator apparatus according to claim 3, wherein the upper end side of the fireproof sheet is connected and has no cut portion.   The evacuation elevator apparatus according to claim 1, wherein a weight is attached to a lower end portion of the fireproof sheet.   The evacuation elevator apparatus according to claim 1, wherein a reinforcing cloth is attached to a lower end portion of the fireproof sheet.   The evacuation elevator apparatus according to claim 1, wherein the refractory sheet is translucent and has a lighting rate of approximately 60%.   The evacuation elevator apparatus according to claim 1, wherein the fireproof sheet is a base fabric made of 100% glass fiber and coated with a polyvinyl chloride (PVC) resin.   The elevator apparatus for evacuation according to claim 1, wherein an air curtain device that creates an air flow from the upper side to the lower side along the fireproof sheet is disposed on the car door side of the fireproof sheet driving device.   The elevator apparatus for evacuation according to claim 1, wherein the air curtain device operates after the fireproof sheet is drooped when a fire occurs.

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