JPH08165081A - Smoke shielding device for elevator entrance - Google Patents

Abstract

PURPOSE: To eliminate the need for a smoke shielding shutter which was conventionally installed separately and provide a smoke shielding function with inexpensive and simple structure. CONSTITUTION: When a door is fully closed, clearances A, B, C, D, E,... produced between the four peripheral sides of a landing entrance and a high speed door 7 and a low speed door 8 are closed by contact between an incombustible elastic body 23 and a holding plate 24 for clearance at the entrance upper part, by contact between an incombustible elastic material 13 and a smoke shielding plate 16 for clearance between a door cover side and high speed door 7 and low speed door 8, by contact between a bent piece 5b and a door contact rubber 9 for clearance on the door contact side, and by lower smoke shielding plate for clearance at the lower part. Thus a cost is reduced more than that of a conventional elevator smoke shielding device, restriction on building structure is eliminated, landing space can be utilized effectively, and attractiveness of the landing is not impaired.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator entrance / exit smoke-shielding device which moves and opens / closes at different speeds from the center or one side of the entrance / exit.

[0002]

2. Description of the Related Art It is well known that a sliding door is generally used as a door for opening and closing an entrance of an elevator. In order to open and close the hall, a gap is required between the four edges of the hall entrance and exit and between the doors. Therefore,
When a fire occurs in a building, smoke may enter the hoistway through the gap and may flow out to other floors. In order to prevent such a disaster, it is required to prevent smoke from flowing out from the entrance / exit of the hall through the hoistway to other floors. However, the above-mentioned elevator doors cannot meet the above-mentioned smoke-shielding requirements, and a smoke-proof shutter as shown in FIG. 8 is provided in the hall.

FIG. 8 is a cross-sectional view of a building showing a conventional elevator entrance / exit smoke-shielding device, and FIG. 9 is a front view as seen from the hall side. In the figure, 1 is a hoistway, 2 is an elevator car arranged in the hoistway 1, 3 is an elevator hall, 4 is a hall entrance / exit that leads from the hall 3 to the hoistway 1, and 5 is an entrance / exit 4
The vertical frame of the door-contact side provided in the, 6 is the vertical frame of the door pocket provided in the doorway 4, 7 is the door frame vertical frame that is arranged with the vertical frame 5 of the door rest side, and 8 is the door at the highway for opening and closing the doorway 4, 8 is the door pocket side It is arranged with the vertical frame 6 separated, and interlocks in front of the high-speed door 7 in a passing state,
A low-speed door for opening and closing the entrance and exit 4, a pillar 9 standing upright around the hall 3, and a smoke-shielding shutter 10 that goes up and down along the pillar 9 to surround the hall 3. The conventional smoke-shielding device of the elevator is configured as described above, and when necessary, the smoke-shielding shutter 10 is lowered to shield the hall 3 so that smoke may enter the hoistway 1 or flow out of the hoistway 1. Is being prevented.

[0004]

In the conventional smoke-shielding device for an elevator, since the hall 3 is surrounded by the smoke-shielding shutter 10, the cost is high and the construction for installing the smoke-shielding shutter 10 is required. There are problems such as restrictions on the structure, which hinders the use of the hall space and impairs aesthetics.

The present invention has been made in order to solve the above-mentioned problems, and does not require a smoke-shielding shutter which has conventionally been installed separately, and has a smoke-shielding function with an inexpensive and simple structure. It is an object of the present invention to provide a smoke blocking device for an elevator hall entrance / exit.

[0006]

SUMMARY OF THE INVENTION An elevator entrance / exit smoke-shielding device according to the present invention is a frame body composed of a door pocket side vertical frame, a door stop side vertical frame, and an upper frame, which form an elevator doorway, and this frame. A gap is formed on the vertical surface of the body so as to face each other, and a sliding door that moves in the direction along the vertical surface to open and close the entrance of the elevator is provided to close the gap between the door and the frame body. In the elevator door smoke control device,
The sliding door is provided along the upper part along the opening / closing direction, and the door closing side end portion is located on the upper frame side of the frame body below the door opening side end portion, and the sliding door opening / closing is performed. A door smoke-shielding portion having a step portion formed to be inclined with respect to the path, and an oblique side parallel to the step portion of the door smoke-shielding portion along the upper frame of the frame body facing the door smoke-shielding portion. And a frame body smoke-shielding portion that is continuously engaged with the step portion of the door smoke-shielding portion when the door is fully closed, and closes the gap between the door and the upper frame. is there.

[0007] Further, a frame body composed of a door pocket side vertical frame, a door stop side vertical frame, and an upper frame which form the entrance and exit of the elevator, and a vertical surface of the frame body are arranged facing each other with a gap formed therebetween. In an elevator doorway smoke shielding device that includes a sliding door that moves in the direction along the vertical surface to open and close the doorway of the elevator, and closes the gap between the door and the frame, in the opening and closing direction of the sliding door. A first slant that is provided along the upper end of the sliding door and that is inclined with respect to the opening / closing path of the sliding door so as to be gradually located on the landing side from the door closing side end to the door opening side end. A door smoke-shielding portion having a side portion, and a second oblique side portion parallel to the first oblique side portion of the door smoke-shielding portion along an upper frame of the frame body facing the door smoke-shielding portion. Is provided so that when the door is fully closed, it is continuously connected to the first oblique side of the smoke-shielding portion of the door. And a frame Saegikemuri portion engaging contact,
The gap between the door and the upper frame is closed.

Further, a frame body composed of a vertical frame on the door pocket side, a vertical frame on the door stop side, and an upper frame forming an entrance / exit of the elevator, and a vertical surface of the frame body are arranged facing each other with a gap formed therebetween. , A high-speed door and a low-speed door equipped with a sliding door that opens and closes the entrance and exit of the elevator by moving in the direction along the elevation surface, in an elevator doorway smoke shielding device that closes the gap between the door and the frame, It is provided along the upper part of the upper frame direction of the frame body along the opening / closing direction of the sliding door, and the door closing side end portion is located lower than the door opening side end portion and the sliding door A door smoke-shielding portion having a first oblique side portion formed to be inclined with respect to the opening / closing path, and a first door smoke-shielding portion along the upper frame of the frame body facing the door smoke-shielding portion. Is provided so as to have a second oblique side portion parallel to the oblique side portion of the door, and when the door is fully closed, the door is A frame body smoke-shielding portion that continuously engages with the first oblique side portion of the smoke portion is provided so that the first oblique side portion of the door smoke-shielding portion does not interfere with a low-speed door when the door is opened. A notch is provided in the upper part of the low speed door on the landing side to close the gap between the door and the upper frame.

Further, the high-speed door is arranged higher than the low-speed door, and the door smoke shield provided on the high-speed door is provided at a position higher than the upper end of the low-speed door.

Further, the door smoke-shielding portion and the frame smoke-shielding portion are brought into contact with each other via an incombustible elastic body.

Further, a frame body composed of a door pocket side vertical frame, a door contact side vertical frame, and an upper frame forming an entrance / exit of the elevator, and a vertical surface of the frame body are arranged facing each other with a gap formed therebetween. , A sliding door composed of a high-speed door and a low-speed door that moves in the direction along the vertical surface to open and close the entrance of the elevator, and a fixing portion that fixes one end to an upper end portion in the opening / closing direction of the high-speed door. And a groove portion having an opening at the other end thereof downwardly formed so as to face the high-speed door smoke-shielding portion and the high-speed door smoke-shielding portion configured not to interfere with the low-speed door when opening and closing. A first frame smoke-shielding part having one end fixed along the upper frame of the frame and a groove having an opening at the other end, and one end at the upper end along the opening / closing direction of the low-speed door A low-speed door smoke-shielding part having a fixing part that fixes the A second frame smoke-shielding portion having one end fixed along the upper frame of the frame facing the low-speed door smoke-shielding portion, and a groove portion having an opening upwardly formed at the other end; The groove portion of the high-speed door smoke-shielding portion and the groove portion of the first frame smoke-shielding portion are fitted to each other so as not to interfere with each other when the door is fully closed, and the bent portion of the low-speed door smoke-shielding portion is formed into the second portion. The frame body smoke blocking portion is configured to be sandwiched so as not to interfere with each other when the door is fully closed.

[0012]

The elevator entrance / exit smoke-shielding device according to the present invention is provided along the upper part along the opening / closing direction of the sliding door, and the upper frame side is closer to the door closing side end than to the door opening side end. A door smoke blocking section that is located and has a step section that is formed inclined with respect to the opening / closing path of the sliding door, and a slant that is parallel to the step section of the door smoke blocking section along the upper frame facing the smoke blocking section. It is composed of a frame body smoke-shielding portion having a side portion, and when the door is fully closed, the oblique side portion of the frame body smoke-shielding portion is continuously engaged with the step portion of the door smoke-shielding portion, so that the door and the upper frame Close the gap between.

Further, the first oblique side portion is provided at the upper end portion along the opening / closing direction of the sliding door and is formed so as to be gradually located on the landing side from the door closing side end portion to the door opening side end portion. And a frame smoke-shielding portion having a second oblique side portion parallel to the first oblique side portion of the door smoke-shielding portion along an upper frame facing the door smoke-shielding portion. When the door is fully closed, the second oblique side portion of the frame smoke-shielding portion is continuously engaged with the first oblique side portion of the door smoke-shielding portion so that the door and the upper frame are separated from each other. Close the gap.

A first slanting line which is provided along the upper side of the sliding door in the upper frame direction and is formed so that the end close to the door closing side is located lower than the end close to the door opening side. A frame smoke shield having a door smoke-shielding portion having a side portion and a second oblique side portion parallel to the first oblique side portion of the door smoke-shielding portion along an upper frame facing the door smoke-shielding portion. When the door is opened, there is no interference between the low-speed door and the first oblique side of the smoke-shielding part when the door is opened. The first oblique side portion of the door smoke-shielding portion continuously engages with the second oblique side portion of the frame smoke-shielding portion to close the gap between the door and the upper frame.

Further, the high-speed door is arranged higher than the low-speed door, and the smoke-shielding portion provided on the high-speed door is provided at a position higher than the upper end of the low-speed door. When the door is fully closed, the first oblique side of the smoke shielding part does not interfere with the low-speed door, and the first oblique side of the smoke shielding part is the second oblique side of the frame smoke shielding part. It is continuously engaged with the row side portion to close the gap between the door and the upper frame.

Further, by making the door smoke-shielding portion and the frame smoke-shielding portion engage with each other through the noncombustible elastic body, even if the door smoke-shielding portion and the frame smoke-shielding portion are incompletely contacted with each other, Make sure to close it so as to seal the gap with the upper frame.

Further, a frame forming an entrance / exit of the elevator, a sliding door composed of a high speed door and a low speed door for opening / closing the entrance, and a fixing portion for fixing one end to an upper end portion along the opening / closing direction of the high speed door. Has a groove part with an opening at the other end, and has a high-speed door smoke-shielding part that is configured not to interfere with a low-speed door when opening and closing, and a high-speed door smoke-shielding part facing the high-speed door smoke-shielding part. A first frame smoke-shielding portion having one end fixed along the frame and a groove portion having an opening upward at the other end, and a fixing portion fixing one end at an upper end portion along the opening / closing direction of a low-speed door. Have,
The low-speed door smoke-shielding portion having a bent portion that bends downward at the other end, and one end is fixed along the upper frame of the frame body facing the low-speed door smoke-shielding portion, and the other end has an opening portion upward. A second frame body smoke-shielding portion having a groove portion is provided, and the groove portion of the high-speed door smoke-shielding portion and the groove portion of the first frame smoke-shielding portion are fitted to each other so as not to interfere with each other when the door is fully closed. By configuring so that the bent portion of the low-velocity smoke-shielding portion is sandwiched by the groove portion of the second frame smoke-shielding portion to the extent that they do not interfere with each other when the door is fully closed,
The smoke distribution path can be lengthened, the smoke shielding property is improved, and the resistance force due to the friction of each smoke shielding portion does not occur when the door is opened and closed.

[0018]

【Example】

Example 1. 1 to 3 and FIG. 9, FIG.
-I line sectional view, FIG. 2 is a II-II line sectional view of FIG. 9, FIG.
FIG. 10 is a sectional view taken along line III-III in FIG. 9. In the figure,
1 is an elevator hoistway, 2 is a hoistway 1,
Elevator basket, 3 is entrance / exit 4 open to hoistway 1
The landing 5 provided with is a vertical frame on the door-contact side that constitutes the door-contact side edge of the doorway 4, and the bent side 5a whose edge on the hoistway side is bent to the opposite entrance side, and the opposite entrance side of the bent side 5a An edge portion is further bent toward the hoistway side, and a bent side 5b is formed, and an edge portion of the bent side 5b on the hoistway side is further bent toward the opposite entrance / exit side 5c. Reference numeral 6 denotes a door pocket side vertical frame that constitutes the door pocket side edge of the doorway 4. The bent side 6a has a hoistway side edge bent to the opposite entrance side, and the opposite entrance side edge of the bent side 6a further bends to the landing side. The curved side 6b is formed.

Reference numeral 7 indicates bent sides 7a and 7 on both side edges, respectively.
b, 7c, 7d, the cross-sectional shape is formed into a box shape, and is a high-speed door that is erected with a gap A between the door-contact side frame 5 and 9 being substantially the same height as the high-speed door 7. Is a semicircular door contact rubber with a T-shaped groove vertically provided, and 10 is a holding plate having the same length as the door contact rubber 9 provided with several stud bolts 11 arranged in a row, It is fixed to the T-shaped groove with 12 nuts through the bent side 7a.

Reference numeral 8 indicates bent sides 8a and 8 on both side edges, respectively.
A low speed door having b, 8c, 8d, and a bent side 8b further bent toward the hoistway side so as to keep a gap B in the high speed door 7 so as to keep a gap B therebetween. At this time, the curved side 6a and the low-speed door 8 have a C
The gap is held. The clearance A, the clearance B, and the clearance C are set to have substantially the same dimensions. 13 is the protrusion 8e
And a nonflammable elastic body provided on the bent side 6b and having a height substantially equal to that of the protruding side 8e and the bent side 6b, and 14 is the bent side 7
c, a fixed metal bent in an L-shape at a height almost equal to the bending side 8c, and fastened to the high-speed door 7c and to the low-speed door 8c by 15 bolts and 12 nuts, respectively. Reference numeral 16 is a smoke shielding plate made of a flexible steel plate having substantially the same height as the fixed metal 14, which is fastened to the fixed metal 14 with 15 bolts and 12 nuts, and is orthogonal to the opening and closing directions of the high speed door 7 and the low speed door 8. Rubber for each door when the door is closed
The bent side 5b and the smoke-shielding plate 16 are in contact with the incombustible elastic body 13, respectively, and the gap A, the gap B, and the gap C are closed.

Reference numeral 17 is a substantially U-shaped structure having a slanted step 17b which moves away from the upper side 17a as it moves to the door stop side. , Is fixed to the upper part of the high-speed door 7 by welding or adhesion. The upper reinforcement 17 has substantially the same width as the upper reinforcement 17, and is formed in a substantially U-shape. The upper reinforcement fitted inside the upper reinforcement 17 is a door hanger 20 suspended from a door rail (not shown) through an adjusting piece 19. , Bolts 21 and nuts 22. Reference numeral 23 is a non-combustible elastic body provided in the inclined step 17b which is a step portion with a length substantially equal to that of the high speed door 7, and 24 is an upper frame 2 which constitutes an upper edge portion of the doorway 4.
5, the non-fastened side is fastened with the nut 27 to the stud bolt 26, and one side on the non-fastened side has a skewed side 24a which is a skewed side portion that is bent in parallel with the skewed step 17b. The holding plate which is the frame body's smoke-shielding part. Even when closing the gap between the upper part of the low speed door 8 and the upper frame 25, the same structure as when closing the gap between the high speed door 7 and the upper frame 25 is used. When the door is closed, the gap D between the high-speed door 7 and the upper frame 25 and the gap E between the low-speed door 8 and the upper frame 25 are closed by the contact between the nonflammable elastic body 23 and the oblique side 24a. .

28 is a landing sill having transverse grooves 28a and 28b arranged at the lower edge of the landing doorway 4, and 29 is a generally ladle-like shape fixed to the high-speed door 7 by welding or gluing. Lower reinforcement 30 is provided in the lower reinforcement 29 at about two places, and a door leg 31 including a mounting plate 30a and a guide shoe 30b made of rubber is fastened to the back side 29a of the lower reinforcement 29 together with the door leg 30. It goes without saying that the lower smoke shield plate, at this time, the lower smoke shield plate 31 is provided with cutout portions so as not to interfere with the guide shoes 30b.
The lower smoke shield plate 31 is configured to close the gap F between the high speed door 7, the low speed door 8 and the hall sill 28. As the non-combustible elastic body 13, for example, glass wool wound with a glass cloth is used, and the elastic function and the like are not lost even if high heat is generated in the elevator at the time of a fire.

In the elevator entrance / exit smoke-shielding device constructed as described above, when the high-speed door 7 and the low-speed door 8 are fully closed, the gap A is formed by the contact between the door contact rubber 9 and the bent side 5b.
The non-combustible elastic body 13 and the smoke shield plate 16 are in contact with each other to close the gaps B and C, the non-combustible elastic body 23 and the oblique side 24a are in contact with each other to form the gap D and the gap E, and the lower smoke shield plate 31 is to close the gap F. To be done.

Thus, it is possible to prevent the smoke in the building from entering the hoistway 1 and the smoke flowing out of the hoistway 1 from spreading to the building when the building is fired. Further, the smoke shielding shutter is unnecessary, and the smoke shielding effect can be obtained with a simple structure and at a low cost. In addition, there is no restriction on the building structure, the three spaces of the hall can be used with a high degree of freedom, and the problem of impairing aesthetics is solved. still,
In this embodiment, a two-sided door consisting of a high speed door and a low speed door
Although the single door has been described, the same effect can be obtained in a hall entrance / exit device including, for example, a single door with three doors and a double door with four doors. .

Example 2. FIG. 4 shows an elevator entrance / exit smoke-shielding device according to Embodiment 2 of the present invention.
It is a II sectional view. In the figure, 34 is a top reinforcement having a length substantially equal to the width of the high-speed door 7 and fixed to the upper part of the high-speed door 7 by welding or bonding to form a substantially U-shape.
5 is an upper reinforcement which is formed in a substantially U-shape with substantially the same width as the upper reinforcement 34 and is fitted inside the upper reinforcement 17, and 36 is formed in a substantially U-shape with a length substantially equal to the width of the upper reinforcement 34. With the smoke-shielding reinforcement as the door smoke-shielding portion having the oblique side 36a that is the first oblique side that approaches the landing side as it approaches the hit side,
Upper reinforcement 34, upper reinforcement 35, bolts 21, nuts 22
And is further fastened to the L-shaped door hanger 20 suspended on a door rail (not shown here) with bolts 21 and nuts 22 via 19 adjusting pieces. 37 is a non-combustible elastic body provided on the oblique side 36a with almost the same width as the smoke shielding reinforcement 36, 38 is provided on the upper frame 25 and is fastened with the stud bolt 26 and the nut 27, and one side on the non-fastened side is diagonal. It is a holding plate which is a frame body smoke-shielding portion having a skewed side 38a which is a second skewed side portion bent in parallel with the row side 36a.

The upper part of the low speed door 8 is constructed in the same manner as the high speed door 7.

When the door is closed, the non-combustible elastic body 37 and the oblique side 38a come into contact with each other so that the gap D between the high-speed door 7 and the upper frame 25 and the gap E between the low-speed door 8 and the upper frame 25 are closed. To be done.

Therefore, also in the second embodiment, the first embodiment
The same effect as above can be obtained, and since the smoke shielding reinforcement 36 that is a door smoke shielding portion is provided separately from the door, it is not necessary to provide a stepped portion in the door body, and a standard door can be used, which is inexpensive. Can be configured, and does not reduce the strength of the door.

Example 3. FIG. 5 shows an elevator entrance / exit smoke-shielding device according to Embodiment 3 of the present invention.
It is a II sectional view. In the figure, the upper reinforcement 34 and the upper reinforcement 35 are arranged in the same manner as in the second embodiment, and the door hanger 2
It is fastened to 0 through the adjusting piece 19 by the bolt 21 and the nut 22. Reference numeral 39 is a slanting plate as a smoke-shielding portion, which is substantially L-shaped and has substantially the same width as the upper reinforcement 34, and has a slanting side 39a which is a first slanting side away from the upper side 34a toward the door-contact side. Then, the stud bolt 4 provided on the non-oblique side
0 is fastened to the upper reinforcement 34 with a nut 41 from a hole 35a (car room side) provided in the upper reinforcement 35. Reference numeral 42 denotes a non-combustible elastic body provided on the oblique side 39a with substantially the same width as the oblique plate 39, and 43 indicates the stud bolt 2 provided on the upper frame 25.
6, fastened with nut 27, one side on the non-fastened side is skewed side 3
The oblique side 43 which is the second oblique side bent in parallel with 9a.
It is a holding plate which is a frame smoke shielding portion having a.

The low speed door 8 is constructed in the same manner as the high speed door 7, but is constructed as follows so that the oblique plate 39 and the low speed door 8 do not interfere with each other when the door is opened. Reference numeral 44 is a top reinforcement having substantially the same width as the low speed door 8 having steps 44a and 44b for avoiding interference, and the landing side upper part of the low speed door 8 is provided with the steps 44a and 4b.
Notched to fit 4b.

Therefore, when the door is closed, the incombustible elastic body 4
2. Since the gap D and the gap E are closed by the contact of the oblique side 43a, the same effect as that of the first embodiment can be obtained also in the third embodiment, and the door smoke shielding part is slid to the upper frame direction of the door. Since it is provided on the upper side of the above, there is an effect that the contact surface of the door smoke shielding portion and the frame smoke shielding portion when the door is fully closed can be adjusted while the door smoke shielding portion is attached to the door side portion from the car side.

Example 4. FIG. 6 shows an elevator entrance / exit smoke-shielding device according to Embodiment 4 of the present invention.
It is a II sectional view. In the third embodiment, the low-speed door 8 is installed in order to avoid the smoke shield 39 and the low-speed door 8 from interfering with each other when the door is opened.
Although a step was provided at the upper part of this, in this embodiment, the high speed door 7
Is higher than the low speed door 8 and the smoke shielding plate 39 is provided at a position higher than the door hanger of the low speed door 8 to avoid interference.

As described above, the same effect as that of the first embodiment can be obtained, and the cutout on the back side of the low-speed door (including the three-door medium-speed door) is not necessary, and the inexpensive standard door is used. There is an effect that can be done. Further, there is a step between the high-speed door and the low-speed door, and there is an effect that workability such as attachment of members is improved by utilizing a space generated by the step. In addition, in Examples 1 to 4, the door smoke-shielding portion and the frame smoke-shielding portion are brought into contact with each other via the non-combustible elastic body to integrally contact the door smoke-shielding portion and the frame smoke-shielding portion. Therefore, the gap between the door and the upper frame is surely closed so as to be hermetically closed, and no unpleasant metallic noise is generated due to the collision between the door smoke shield and the frame smoke shield when the door is closed.

Example 5. FIG. 7 shows an elevator entrance / exit smoke-shielding device according to Embodiment 5 of the present invention.
-II is a sectional view. In the figure, reference numerals 48 and 49 are formed so as to form a groove portion sandwiching the U-shaped end edge 45a of the key-shaped smoke shield plate 45, which is a high-speed door smoke shield portion having one end fixed to the upper portion of the high-speed door 7. The L-shaped plate has a width substantially equal to that of the door 7 and becomes an F-shape when combined, and is a first frame smoke-shielding portion fixed to the upper frame 25 by stud bolts 26 and nuts 27. The L-shaped plates 50 and 51 are also L-shaped plates which are second frame smoke-shielding parts having the same structure, and 52 is a bolt 2 attached to the door hanger 20 via an adjusting piece 19 on the upper part of the door 8.
1. A low speed door having a bent portion 52a fixed by a nut 22 and having a width almost equal to that of the low speed door 8 and having an edge bent into an L shape so as to fit into a groove formed by the L-shaped plates 50 and 51. It is an L-shaped smoke shield that is a smoke shield. The key-shaped smoke shield 45 will be described in detail. When the doors 7 and 8 are opened and closed, the door is opened further toward the floor so as not to interfere with the upper part of the low-speed door 8 and the low-speed side door hanger 20. It is formed in a V shape and its cross section is formed in a substantially key shape.

By the above, the smoke distribution path can be lengthened, the smoke shielding property is improved, and the resistance force due to the friction of each smoke shielding portion does not occur when the door is opened and closed, so that the door safety,
Reliability is secured.

[0036]

According to the present invention, the elevator entrance / exit smoke-shielding device is provided along the upper portion of the sliding door,
A door smoke-shielding portion having a step portion formed on the upper frame side with the end close to the door closed and below the end close to the door open and inclined with respect to the opening / closing path of the sliding door; And a frame body smoke-shielding portion having a slanting side portion parallel to the step portion of the door smoke-shielding portion along the upper frame facing the section, and the slanting side portion of the frame body smoke-shielding portion when the door is fully closed. By continuously engaging the stepped portion of the door smoke-shielding part, it is possible to close the gap between the door and the upper frame. It is not necessary, and it is possible to effectively use the landing space, and at the same time, it is possible to prevent smoke from entering a car due to a fire that has occurred in a building with a cheap and simple structure.

Further, the first oblique line is provided as a separate body at the upper end portion along the opening and closing direction of the sliding door, and is formed so as to be gradually positioned on the landing side from the door closing side end portion to the door opening side end portion. A frame smoke shield having a door smoke-shielding portion having a side portion and a second oblique side portion parallel to the first oblique side portion of the door smoke-shielding portion along an upper frame facing the door smoke-shielding portion. When the door is fully closed, the second oblique side of the frame smoke-shielding portion is continuously engaged with the first oblique side of the door smoke-shielding portion, so that the door and the upper frame The above effect can be obtained because the space between the door and the door can be closed, and since the door smoke shield is provided separately from the door, it is not necessary to provide a step on the door body, and a standard door can be used. It can be constructed at low cost and does not reduce the strength of the door.

Further, the first slanted side portion which is provided on the upper side in the upper frame direction of the sliding door and is formed such that the door closing side end portion is located lower than the door opening side end portion is formed. Consists of a door smoke-shielding part and a frame smoke-shielding part having a second oblique side parallel to the first oblique side of the door smoke-shielding part along an upper frame facing the door smoke-shielding part. By providing the landing-side upper notch of the low-speed door, the first oblique side of the smoke-shielding part does not interfere with the low-speed door when the door is opened, and the smoke-closed door is closed when the door is fully closed. Since the first oblique side of the part is continuously engaged with the second oblique side of the frame smoke-shielding part to close the gap between the door and the upper frame, it is installed in the elevator hall in the past. Due to the effect, the smoke-shielding shutter, which requires space, is not required, and the effective use of the landing space becomes possible, and the smoke basket due to the fire that occurred in the building is simple and inexpensive. Thereby prevent the entry into, since there is provided in the upper portion of the upper frame direction pull difference door the Tosaegi smoke unit,
When the door is fully closed, the contact surface between the door smoke shield and the frame smoke shield can be adjusted while the door smoke shield is attached to the door side from the car side.

Further, the high-speed door is arranged higher than the low-speed door, and the smoke-shielding portion provided on the high-speed door is provided at a position higher than the upper end of the low-speed door. When the door is fully closed, the first oblique side of the smoke shielding part does not interfere with the low-speed door, and the first oblique side of the smoke shielding part is the second oblique side of the frame smoke shielding part. The gap between the door and the upper frame can be closed by continuously engaging the row sides, and in addition to the effect described immediately above, cutting on the back side of low-speed doors (including medium-speed doors for 3 doors) Since there is no need for a notch, there is an effect that an inexpensive standard door can be used. Further, there is a step between the high-speed door and the low-speed door, and there is an effect that workability such as attachment of members is improved by utilizing a space generated by the step.

Further, the door smoke-shielding portion and the frame smoke-shielding portion are brought into contact with each other through the noncombustible elastic body, so that the door smoke-shielding portion and the frame smoke-shielding portion can be integrally contacted with each other. The gap between the upper frame and the upper frame is surely closed so as to be hermetically closed, and no unpleasant metallic noise is generated due to the collision between the door smoke shield and the frame smoke shield when the door is closed.

Further, one end is fixed to the upper end portion along the opening and closing direction of the high speed door, and the other end is formed with a groove portion having an opening downward, so that it does not interfere with the low speed door when opening and closing. And a first frame smoke-shielding portion having one end fixed along an upper frame facing the high-speed door smoke-shielding portion and a groove portion having an opening upward at the other end; One end is fixed to the upper end along the opening and closing direction of the door, and one end is attached to the other end of the low-speed door smoke-shielding portion that has a bent portion that bends downward, and the upper frame facing the low-speed door smoke-shielding portion. And a second frame smoke-shielding portion having a groove portion having an opening upward at the other end, and the groove portion of the high-speed door smoke-shielding portion and the groove portion of the first frame smoke-shielding portion They are constructed by fitting together so that they do not interfere with each other when fully closed, and the bent portions of the low-velocity smoke-shielding portion of the low speed are shielded from each other by the groove of the second frame smoke-shielding portion when the door is fully closed. Since it can be sandwiched to the extent that it does not interfere with, it is possible to lengthen the smoke distribution path, improve the smoke shielding property, and because the resistance force due to the friction of each smoke shielding part does not occur when opening and closing the door, Door safety,
Reliability is secured.

[Brief description of drawings]

1 is a sectional view taken along line I-I of FIG. 9 showing an elevator entrance / exit smoke-shielding device according to Embodiment 1 of the present invention.

2 is a sectional view taken along line II-II of FIG. 9 showing an elevator entrance / exit smoke-shielding device according to Embodiment 1 of the present invention.

3 is a sectional view taken along line III-III of FIG. 9 showing an elevator entrance / exit smoke-shielding device according to Embodiment 1 of the present invention.

FIG. 4 is a sectional view taken along line II-II of FIG. 9 showing an elevator entrance / exit smoke-shielding device according to Embodiment 2 of the present invention.

5 is a sectional view taken along line II-II of FIG. 9 showing an elevator entrance / exit smoke-shielding device according to Embodiment 3 of the present invention.

6 is a sectional view taken along line II-II in FIG. 9 showing an elevator entrance / exit smoke-shielding device according to Embodiment 4 of the present invention.

7 is a sectional view taken along line II-II of FIG. 9 showing an elevator entrance / exit smoke-shielding device according to Embodiment 5 of the present invention.

FIG. 8 is a cross-sectional view of a building showing a conventional elevator entrance / exit smoke-shielding device.

FIG. 9 is a front view of the elevator when viewed from the landing.

[Explanation of symbols]

3 elevator halls, 4 elevator doorways,
5 door-side vertical frames, 6 door-side vertical frames, 7 high-speed doors, 8
Low-speed door, 17 Upper reinforcement (door smoke shielding part), 17b Diagonal step (step portion), 23 Non-combustible elastic body, 24 Holding plate (frame smoke shielding part), 25 Upper frame, 36 Smoke shielding reinforcement (door shielding) Smoke section),
36a Oblique side (first oblique side), 37 Non-combustible elastic body, 38 Holding plate (frame smoke shield), 38a Oblique side (second oblique side), 39 Oblique plate (door Smoke shield), 39a
Oblique side (first oblique side), 42 non-combustible elastic body, 43 holding plate (frame smoke shield), 43a oblique side (second oblique side), 45 key smoke shield ( High-speed door smoke shield), 48
L-shaped plate (first frame smoke-shielding portion), 49 L-shaped plate (first frame smoke-shielding portion), 50 L-shaped plate (second frame smoke-shielding portion), 51
L-shaped plate (second frame smoke shield), 52 L-shaped smoke shield (low-speed door smoke shield).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuhiro Nishimura 1 Hishimachi, Inazawa City Mitsubishi Electric Co., Ltd. Inazawa Works

Claims (6)

[Claims] 1. A frame body including a door pocket side vertical frame, a door contact side vertical frame, and an upper frame forming an entrance / exit of an elevator, and a vertical surface of the frame body. In an elevator doorway smoke shielding device that includes a sliding door that moves in the direction along the vertical surface to open and close the doorway of the elevator, and closes the gap between the door and the frame, in the opening and closing direction of the sliding door. Along the upper part of the frame body, the door closing side end portion is located on the upper frame side of the frame body lower than the door opening side end portion and is inclined with respect to the opening / closing path of the sliding door. A door smoke-shielding portion having a stepped portion, and is provided so as to have an oblique side portion parallel to the stepped portion of the door smoke-shielding portion along the upper frame of the frame body facing the door smoke-shielding portion, When the door is fully closed, the frame smoke-shielding portion that continuously engages with the step portion of the door smoke-shielding portion is provided. An elevator entrance / exit smoke-shielding device, characterized in that it closes the gap between the door and the upper frame. 2. A frame body composed of a door pocket side vertical frame, a door contact side vertical frame, and an upper frame forming an entrance / exit of an elevator, and a vertical surface of the frame body is provided with a gap to face each other. In an elevator doorway smoke shielding device that includes a sliding door that moves in the direction along the vertical surface to open and close the doorway of the elevator, and closes the gap between the door and the frame, in the opening and closing direction of the sliding door. A first slant that is provided along the upper end of the sliding door and that is inclined with respect to the opening / closing path of the sliding door so as to be gradually located on the landing side from the door closing side end to the door opening side end. A door smoke-shielding portion having a side portion, and a second oblique side portion parallel to the first oblique side portion of the door smoke-shielding portion along an upper frame of the frame body facing the door smoke-shielding portion. And is continuously engaged with the first oblique side portion of the door smoke-shielding portion when the door is fully closed. An elevator entrance / exit smoke-shielding device, comprising: a frame smoke-shielding part that closes a gap between the door and the upper frame. 3. A frame body composed of a door pocket side vertical frame, a door contact side vertical frame, and an upper frame forming an entrance / exit of an elevator, and a vertical surface of the frame body is provided with a gap to face each other. , A high-speed door and a low-speed door equipped with a sliding door that opens and closes the entrance and exit of the elevator by moving in the direction along the elevation surface, in an elevator doorway smoke shielding device that closes the gap between the door and the frame, It is provided along the upper part of the upper frame direction of the frame body along the opening / closing direction of the sliding door, and the door closing side end portion is located lower than the door opening side end portion and the sliding door A door smoke-shielding portion having a first oblique side portion formed to be inclined with respect to the opening / closing path, and a first door smoke-shielding portion along the upper frame of the frame body facing the door smoke-shielding portion. Is provided so as to have a second oblique side part parallel to the oblique side part of the A low-velocity door provided with a frame smoke-shielding portion that is continuously engaged with the first skew-side portion, and prevents the first skew-side portion of the smoke-shielding portion from interfering with the low-speed door when the door is opened. An elevator entrance / exit smoke-shielding device, characterized in that a notch is provided at an upper part of the landing side of the elevator to close a gap between the door and the upper frame. 4. The high-speed door is arranged higher than the low-speed door, and the smoke-shielding portion provided on the high-speed door is provided at a position higher than the upper end portion of the low-speed door. The elevator entrance / exit smoke-shielding device according to item 3. 5. The elevator entrance / exit smoke-shielding device according to claim 1, wherein the door smoke-shielding portion and the frame smoke-shielding portion are brought into contact with each other via an incombustible elastic body. 6. A frame body composed of a door pocket side vertical frame, a door contact side vertical frame, and an upper frame forming an entrance / exit of an elevator, and a space is formed on a vertical surface of the frame body so as to face each other. , A sliding door composed of a high-speed door and a low-speed door that moves in the direction along the vertical surface to open and close the entrance of the elevator, and a fixing portion that fixes one end to an upper end portion in the opening / closing direction of the high-speed door. And a groove portion having an opening at the other end thereof downwardly formed so as to face the high-speed door smoke-shielding portion and the high-speed door smoke-shielding portion configured not to interfere with the low-speed door when opening and closing. A first frame smoke-shielding part having one end fixed along the upper frame of the frame and a groove having an opening at the other end, and one end at the upper end along the opening / closing direction of the low-speed door A low-speed door smoke-shielding portion having a fixing portion for fixing the lower portion and a bending portion that bends downward at the other end; The second frame smoke-shielding portion having one end fixed along the upper frame of the frame body facing the low-speed door smoke-shielding portion and having a groove portion having an opening upward at the other end, And the groove portion of the first frame smoke shielding portion are fitted to each other so as not to interfere with each other when the door is fully closed, and the bent portion of the low speed door smoke shielding portion is formed into the second portion. An elevator entrance / exit smoke-shielding device characterized in that the frame smoke-shielding portions are configured to be sandwiched so that they do not interfere with each other when the door is fully closed.