JP2004083245A - Elevator system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator system preventing smoke intrusion from an elevator landing into a hoistway. <P>SOLUTION: This elevator system is provided with a landing jamb 17 installed in the elevator landing 1 and a landing door 9 sliding along the landing jamb 17. A three-way shielding body 23 having a triangular shape corresponding to the landing jamb 17 is provided movably to the landing door 9 in the landing jamb 17. The three-way shielding body 23 is pushed toward the side of the landing door 9 by a spring 25 provided in the landing jamb 17. The three-way shielding body 23 is constantly locked by a lock mechanism 24 and, when the lock of the lock mechanism 24 is released, it is pushed toward the side of the landing door 9 by the spring 25. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator system having a hall three-way frame installed in an elevator hall and a hall door, and more particularly to an elevator system that can effectively block smoke from an elevator hall to a hoistway.
[0002]
[Prior art]
A conventional elevator system will be described with reference to FIGS. As shown in FIGS. 6 and 7, the elevator system includes a hall door 9 installed between the elevator hall 1 and the hoistway 4, and a hall three-way frame 17 provided on the elevator hall 1 side.
[0003]
In FIG. 6, a floor finishing surface 3 for adjusting the level is provided on a floor driving body 2 of an elevator landing 1, and a sill 6 is installed on a hoistway 4 side of the floor driving body 2 by a sill mounting bracket 5.
[0004]
A groove 7 is provided in the sill 6, and a landing door 9 is mounted in the groove 7 via a door shoe 8, and the landing door 9 is further incorporated into a door opening / closing device 11 by a roller 10 mounted thereon. Supported on the upper surface of the rail 12.
[0005]
Although the landing door 9 is normally closed by the locking device 13, when the car 14 ascending and descending in the hoistway 4 reaches the elevator landing 1, the locking device 13 is released by the door engaging device 15 incorporated in the car 14. The landing door 9 opens and closes together with the car door 16 on the car 14 side.
[0006]
In the elevator hall 1 of the hall door 9, upright frames 17 a provided at both left and right ends and an upper frame 18 provided at an upper end are installed with a gap 19 between the hall door 9. The upright frame 17a and the upper frame 18 constitute the above-described landing three-way frame 17.
[0007]
[Problems to be solved by the invention]
Here, FIG. 7 is a cross-sectional view taken along the line YY in FIG. As shown in FIG. 7, the landing door 9 opens and closes left and right around the entrance center 20. At this time, the landing door 9 opens and closes while forming a gap 19 between the landing frame 9 and the standing frame 17a of the landing three-way frame 17. As shown in FIG. 6, the hall door 9 opens and closes while forming a gap 19 between the hall door 9 and the sill 6 and also forming a gap 19 between the hall door 9 and the upper frame 18.
[0008]
These gaps 19 are set for adjusting the installation of the landing door 9 and the landing three-way frame 17. In such a case, when a fire occurs in the building and the smoke 21 reaches the vicinity of the elevator hall 1, the smoke 21 on the elevator hall 1 side may enter the hoistway 4 side from the gap 19 and propagate to the upper floor. Can be As a result, there is a risk that the occupants on the upper floor may be exposed to the smoke 21 due to the smoke propagating to the upper floor.
[0009]
The present invention has been made in view of such a point, and an object of the present invention is to provide an elevator system that can prevent smoke flowing from an elevator landing into a hoistway.
[0010]
[Means for Solving the Problems]
The present invention provides a landing three-way frame that is installed in an elevator landing, has a pair of upright frames and an upper frame, a landing door that slides along the landing three-way frame, and is disposed in the landing three-way frame, And a three-sided shield having a three-sided shape corresponding to the above, wherein the three-way shield is moved toward the landing door by a drive mechanism.
[0011]
The present invention is an elevator system wherein the drive mechanism operates by receiving an electric signal from a disaster prevention center of a building.
[0012]
The present invention is the elevator system, wherein the drive mechanism operates by receiving a signal from a smoke detector at each elevator landing.
[0013]
The present invention is the elevator system, wherein the driving mechanism operates by receiving an electric signal from the heat detector.
[0014]
The present invention is characterized in that, of the three-way shielding body having a three-sided shape, a portion corresponding to the standing frame of the landing three-sided frame is provided with a rotating body, and the rotating body rotates with the movement of the landing door. Elevator system.
[0015]
The present invention is an elevator system characterized in that one of a landing door and a three-way shield has a concave portion, and the other has a convex portion that engages with the concave portion.
[0016]
The present invention is an elevator system characterized in that a lower shielding member that slides on a floor surface of an elevator hall is attached to a lower end of the hall door on the hoistway side.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 are diagrams showing an embodiment of an elevator system according to the present invention.
[0018]
As shown in FIGS. 1 and 2, the elevator system is a hall three-way frame 17 (FIG. 6) which is installed in the elevator hall 1 and has a pair of upright frames 17 a and an upper frame 18 provided on the pair of upright frames 17 a. ), A landing door 9 that slides along the landing three-sided frame 17, and a three-way shield 23 disposed in the landing three-sided frame 17 and having a triangular shape corresponding to the landing three-sided frame.
[0019]
Of these, the landing door 9 is a double-opening door that opens right and left around the entrance center 20.
[0020]
Further, the elevator hall 1 is partitioned from the hoistway 4 by the hall door 9, and a gap 19 is formed between the hall door 9 and the threshold 6 of the elevator hall 1.
[0021]
A gap 19 is also formed between the hall three-way frame 17 and the hall door 9.
[0022]
The three-way shield 23 is made of an elastic material such as rubber, and is constantly pressed toward the landing door 9 by a spring 25 attached to a metal fitting 26 in the three-way frame 17. The three-way shielding body 23 pressed toward the hall door 9 by the spring 25 is locked by a locking mechanism 24 provided in the three-side frame 17. The locking mechanism 24 is actuated by an external signal to release the locking of the three-way shielding body 23 as described later, and the spring 25 makes contact with the three-way shielding body 23 against the landing door 9.
[0023]
The locking mechanism 24 and the spring 25 constitute a driving mechanism that drives the three-way shield 23 toward the landing door 9.
[0024]
As shown in FIG. 2, the landing door 9 is provided with a lower shield 27 that slides on the threshold 6 protruding from the elevator landing 1 at the lower end of the hoistway 4 side.
[0025]
That is, a box-shaped mounting bracket 29 is fixed to the lower end of the landing door 9 on the hoistway 4 side, and a lower shielding body 27 is installed in the mounting bracket 29 so as to be vertically movable. The lower shield 27 is pressed downward by a spring 28 provided in a mounting bracket 29. The lower shield 27 is made of synthetic resin or rubber, and moves with the landing door 9 to slide on the threshold 6.
[0026]
Next, the operation of the present embodiment will be described from such a configuration. In FIG. 1, when a fire occurs in a building and smoke generated by the fire is expected to reach the vicinity of the elevator hall 1, the occupants or managers of the building near the elevator hall were set up at the hall. The button 24a of the locking mechanism 24 is operated. When the button 24a is operated, the locking mechanism 24 is operated to release the locking of the three-way shield 23, and the three-way shield 23 is pressed against the surface of the landing door 9 by the spring 25, and the landing door 9 and the landing three-side frame 17 are pressed. Is closed.
[0027]
The locking mechanism 24 is configured to work with the locking mechanisms 24 on all other floors. When the locking mechanism 24 on one floor is operated, all the locking mechanisms 24 on other floors are activated. The gap 19 is closed by the three-way shield 23 on all floors.
[0028]
As shown in FIG. 2, the lower shielding body 27 installed at the lower end of the landing door 9 is always pressed against the sill 6 and closes the gap 19, so that the gap 19 is always closed. .
[0029]
As described above, according to the present embodiment, the gap 19 between the landing door 9 and the landing three-way frame 17 and the gap 19 between the landing door 9 and the threshold 6 are formed by the three-way shield 23 and the lower shield 27. By closing, it is possible to provide smoke blocking performance near the landing door 9. Therefore, even if a fire occurs in the building and the smoke reaches the vicinity of the elevator hall 1, it is possible to prevent the smoke from entering the elevator hall 1 from the elevator hall 1 side. As a result, the evacuated occupants can complete evacuation without being exposed to smoke, and can also support firefighting and rescue activities.
[0030]
Next, another embodiment of the present invention will be described with reference to FIG.
[0031]
In the above embodiment, the example in which the locking mechanism 24 installed in the elevator hall 1 is operated by the button 24a to drive the three-way shield 23, but when the button 24a cannot be operated due to the situation. Alternatively, the three-way shield 23 may be driven by operating the locking mechanism 24 using an electric signal from the building disaster prevention center 32.
[0032]
Alternatively, when the disaster prevention center 32 cannot be contacted due to what is happening, locking is performed by using an electric signal from the smoke detector 33 or the heat detector 34 provided at the elevator landing (FIG. 3) on each floor. The three-way shield 23 may be driven by operating the mechanism 24.
[0033]
Next, another embodiment of the present invention will be described with reference to FIG. In the embodiment shown in FIG. 4, a rotating body 41 is provided via a support arm 42 on a portion of the three-way shield 23 corresponding to the standing frame 17 a of the landing three-way frame 17, and a portion corresponding to the upper frame 18 is filled. The body 43 is provided. The gap 19 between the landing door 9 and the landing three-way frame 17 is closed by the rotating body 41 and the filling body 43. When the landing door 9 is reopened / closed for rescue work, the landing door 9 can be opened / closed by rotating the rotating body 41 while maintaining the smoke shielding performance.
[0034]
The rotating body 41 and the filling body 43 are made of the same material as the three-way shielding body 23.
[0035]
Next, still another embodiment of the present invention will be described with reference to FIG. As shown in FIG. 5, any one of the landing door 9 and the three-way shielding body 23, for example, the landing door 9 may be provided with a recess 9 a. In this case, the three-way shielding body 23 is provided with a convex portion 23a that engages with the concave portion 9a of the landing door 9, and by engaging the convex portion 23a of the three-way shielding member 23 with the concave portion 9a of the landing door 9, The smoke blocking function of the landing door 9 and the three-way shielding body 23 can be improved.
[0036]
In each of the above embodiments, the landing door 9 is a double-opening door that opens and closes left and right about the entrance center 20. However, the present invention is not limited to this. Good. Also, a vertical opening / closing door that opens and closes in the vertical direction may be used as the landing door 9.
[0037]
Furthermore, although an example has been shown in which the lower shielding body 27 installed on the landing door 9 is constantly pressed downward by the spring 29 (see FIG. 2), the lower shielding body 27 is not limited to this and is always separated from the threshold 6. In an emergency, the lower shield 27 may be actuated by a solenoid valve (not shown) and pressed against the threshold 6.
[0038]
【The invention's effect】
As described above, according to the present invention, even when a fire occurs and smoke reaches near the elevator hall, it is possible to prevent smoke flowing from the elevator hall into the hoistway.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of an elevator system according to the present invention.
FIG. 2 is a sectional view taken along line XX of FIG.
FIG. 3 is a diagram showing another embodiment of the elevator system according to the present invention.
FIG. 4 is a diagram showing another embodiment of the elevator system according to the present invention.
FIG. 5 is a diagram showing another embodiment of the elevator system according to the present invention.
FIG. 6 is a side view showing a conventional elevator system.
FIG. 7 is a sectional view taken along line YY of FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 elevator hall 4 hoistway 6 sill 9 hall door 17 hall three-way frame 17a upright frame 18 upper frame 23 three-way shield 24 locking mechanism 24a button 25 spring 27 lower shield

Claims (7)

A hall three-way frame installed on the elevator hall and having a pair of standing frames and an upper frame,
A landing door sliding along the landing three-way frame,
A three-way shielding body disposed in the landing three-way frame and having a trigonal shape corresponding to the landing three-way frame,
An elevator system wherein the three-way shield moves toward a landing door by a drive mechanism. The elevator system according to claim 1, wherein the drive mechanism operates by receiving an electric signal from a disaster prevention center of the building. The elevator system according to claim 1, wherein the drive mechanism operates by receiving a signal from a smoke detector at each elevator landing. The elevator system according to claim 1, wherein the driving mechanism operates by receiving an electric signal from a heat sensor. Of the three-way shielding body having a three-sided shape, a rotating body is provided at a portion corresponding to the upright frame of the landing three-sided frame, and the rotating body rotates with the movement of the landing door. The elevator system according to claim 1, wherein The elevator system according to claim 1, wherein one of the landing door and the three-way shield has a concave portion, and the other has a convex portion that engages with the concave portion. The elevator system according to claim 1, wherein a lower shielding member that slides on a floor surface of the elevator hall is attached to a lower end of the hall door on the hoistway side.

Images