JP2013052989A - Smoke blocking door device of elevator, and installation method of smoke blocking door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smoke blocking door device of an elevator, which can be combined with a smoke blocking door even when a jamb is roughened.SOLUTION: The smoke blocking door device 51 of an elevator includes a seam-folded long sheet 13 supported by a jamb vertical frame 2, and a smoke blocking member 10 which is supported by an elevator doorway door 4 being a smoke blocking door and covers a gap between the seam-folded long sheet and the smoke blocking door. The seam-folded long sheet is disposed so as to cover a corresponding surface of the jamb. The seam-folded long sheet has an overlapped part partially overlapped by seam-folding a sheet member, and an nonoverlapped part. In the nonoverlapped part, the seam-folded long sheet is attached to the corresponding surface of the jamb by truss tapping screws 16. The smoke blocking member covers the gap by contacting with the overlapped part in the folded part.

Description

  The present invention relates to a technique for combining a new smoke-proof door with an existing three-way frame in elevator renovation.

  As an elevator smoke-proof door, for example, there are those disclosed in Patent Document 1 and Patent Document 2. These conventional smoke shielding doors are provided with a smoke shielding member so as to move integrally with the door at the landing door. When the door is fully closed, the smoke shielding member is configured to block the gap between the three-way frame defining the landing entrance and the landing door portion.

  However, when trying to combine a new smoke-shielding door with an existing three-way frame in an elevator renovation, the expected effect of the smoke-shielding member may not be obtained if the surface state of the existing three-way frame is rough .

JP 2004-352428 A JP 2005-272099 A

  The present invention has been made in view of the above, and provides a smoke-proof door device for an elevator and a method for installing the smoke-proof door device that can be suitably combined with a smoke-proof door even if the three-sided frame is rough. Objective.

In order to achieve the above-described object, a smoke-proof door device for an elevator according to the present invention includes a folding band supported by a three-way frame, and a smoke-shielding door supported between the folding band and the smoke-shielding door. A smoke-shielding member that closes the gap, and the helical fold band is provided so as to cover a corresponding surface of the three-way frame, and the helical fold band folds the plate-like member. And the non-overlapping portion is attached to the corresponding surface of the three-way frame by a screw member at the non-overlapping portion, and the smoke shield The member closes the gap by coming into contact with the overlapping portion of the helical fold band.
Furthermore, the elevator smoke shielding door device installation method of the present invention for achieving the same object is achieved by bringing the smoke shielding member supported by the smoke shielding door into contact with the spiral fold belt supported by the three-way frame. , The gap between the folding belt and the smoke-proof door is closed, and the one end side of the plate-like member is folded so that it partially overlaps, A step of preparing the helical fold band having a non-overlapping portion, an arrangement step of arranging the helical fold band so as to cover a corresponding surface of the three-way frame, and a screw member in the non-overlapping portion, A fixing step of fixing the helical fold band to the three-way frame.

  According to the present invention, the smoke-proof door can be suitably combined even if the three-way frame is rough.

It is a perspective view which shows the hall of the elevator which applies the smoke shielding door apparatus of the elevator which concerns on embodiment of this invention. It is a top view regarding the boarding gate entrance vicinity. It is a figure which expands and shows the III part of FIG. (A) shows the helix band in this Embodiment, (b) And (c) is a figure which shows the relationship between a helix band and a screw. It is a figure which shows the operation | work which moves to a three-way frame and processes a hole according to the hole of a helical fold belt. It is a top view regarding the state of FIG. It is a figure which shows the operation | work which cuts off the positioning part in a helical fold band after completion of a transfer hole process. It is a figure of the same aspect as FIG. 3 regarding a comparative example. It is a figure of the same aspect as FIG. 4 regarding a comparative example. It is a figure of the same aspect as FIG. 5 regarding a comparative example. It is a figure of the same aspect as FIG. 6 regarding a comparative example.

  DESCRIPTION OF EMBODIMENTS Embodiments of an elevator smoke shielding door device according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  FIG. 1 is a perspective view showing an elevator hall to which an elevator smoke-shielding door device according to the present embodiment is applied. FIG. 2 is a plan view relating to the vicinity of the hall entrance / exit. As shown in the figure, a landing entrance is defined in the elevator hall 1 by a pair of left and right three-sided frame vertical frames 2 and a three-sided frame upper frame 3. Such a landing entrance is opened and closed by a landing door 4. A landing wall 7 is provided outside the three-way frame vertical frame 2 and the three-way frame upper frame 3, and a landing indicator 5 and a landing button 6 are provided on the landing wall 7.

  Next, based on FIG.3 and FIG.4, the smoke-insulation door apparatus of the elevator which concerns on this Embodiment is demonstrated. FIG. 3 is an enlarged view of a portion III in FIG. FIG. 4A shows the helical fold in this embodiment, and FIGS. 4B and 4C show the relationship between the round hole for threading the helical fold and the truss pin screw. FIG. The elevator smoke-shielding door device 51 includes a spiral fold belt 13 supported by a three-way frame, and a smoke-shielding sheet 10 as a smoke-shielding member supported by a landing door 4 that is a smoke-shielding door. The smoke shielding sheet 10 closes the gap between the helix fold 13 and the landing door 4.

  The helical band 13 has an overlapping portion 13e and a non-overlapping portion 13f. The helical band 13 is a simple plate-like member before being formed, and is formed by being folded so that only one end side of the plate-like member partially overlaps. The overlapping portion 13e is a portion that partially overlaps, and the non-overlapping portion 13f is a portion that deviates from the overlapping. The tip of the folded fold band 13 on the side of the overlapping portion 13e is a curved portion having a large R in the shape of a hairpin.

Further, the thickness of the non-overlapping portion 13f is only the thickness of the original plate-like member. On the other hand, the thickness of the overlapping portion 13e is larger than at least the thickness of the non-overlapping portion 13f, the thickness of the plate-like member before molding is uniform, and the folding is performed only once. In this example, the thickness is about twice the thickness of the non-overlapping portion 13f. Note that a step 13g exists between the overlapping portion 13e and the non-overlapping portion 13f, and the step 13g is formed by the end of the original plate-like member before molding.

  The helical band 13 is provided so as to cover the corresponding surface of the three-way frame. More details are as follows. First, the three-way frame vertical frame 2 includes a landing-side surface 2a, a depth forming surface 2b, and a hoistway-side surface 2c. In the present embodiment, since the landing door 4 is arranged further on the hoistway side than the hoistway side surface 2c of the three-sided frame vertical frame 2, the folding band 13 is the hoistway side of the three-sided frame vertical frame 2 It is attached so as to cover the surface 2c.

  The fold belt 13 is attached to the three-way frame vertical frame 2 so that the fold portion 13a (step portion 13g) faces the landing door 4 side (the hoistway side). In other words, the flat surface where the overlapping portion 13e and the non-overlapping portion 13f are flush with each other is attached so as to contact the hoistway side surface 2c of the three-way frame vertical frame 2. A non-overlapping portion 13f of the spiral fold band 13 has a bolt-through round hole 13b extending therethrough, and a screw fold band 16b as a screw member inserted into the bolt-through round hole 13b. 13 is fixed to the three-way frame vertical frame 2. The head of the truss pin pin 16 is disposed on the side opposite to the three-way frame vertical frame 2, that is, on the side where the folded portion 13a (stepped portion 13g) is present.

  The smoke shielding sheet 10 is a member including a convex portion protruding toward the three-way frame, and is fixed to the side end surface of the landing door 4 via the smoke shielding sheet presser 9. The smoke shielding sheet retainer 9 is fixed to the landing door 4 with screws 9a. The smoke shielding sheet 10 closes the gap between the folding band 13 and the landing door 4 by abutting against the folding part 13 a (overlapping part 13 e) in the folding band 13.

  Next, the installation method of the smoke shielding door apparatus 51 of an elevator is demonstrated. FIG. 5 is a diagram showing an operation of moving to a three-way frame in accordance with a hole in a folded band and machining the hole. FIG. 6 is a plan view relating to the state of FIG. Moreover, FIG. 7 is a figure which shows the operation | work which cuts off the positioning part in a helical fold band after completion of a transfer hole process.

  First, as shown in FIGS. 5 and 6, the helical fold band 13 is arranged in an appropriate state with respect to the hoistway side surface 2 c of the three-way frame vertical frame 2. At this time, the folding band 13 is positioned at an appropriate mounting position with respect to the three-way frame vertical frame 2 by using a plurality of positioning bending ears 13c provided at the top and bottom. Each of the positioning bent ears 13c is a portion bent to the three-sided frame side provided on one side of the helical band 13. In addition, the positioning bent ear portion 13c is a portion formed integrally with the non-overlapping portion 13f. As described above, the folding band 13 is originally a plate-like member. The bending ear portion 13c can be easily formed as a part of this plate-like member.

  The helical folding band 13 can be set to an appropriate position by placing the positioning bent ear 13c so as to be hooked on the corner of the hoistway side surface 2c of the three-way frame vertical frame 2. In addition, a magnet pressing jig 14 is disposed on the non-overlapping portion 13f of the helical folding band 13, and the helical folding band 14 has a force by which the magnetic pressing jig 14 is attracted to the three-way frame vertical frame 2 by a magnetic force. 13 is held in an appropriate position.

  Next, using a drilling drill tool 12, a fixing hole is made at a position corresponding to the round hole 13 b for bolt passage of the folding band 13 on the hoistway side surface 2 c of the three-way frame vertical frame 2. The screw strap 13 is appropriately fixed to the three-sided frame vertical frame 2 by passing through the bolt holes in the fixing holes 16b and screwing the truss pin screw 16 into these fixing holes. When the folding band 13 has been fixed by the trastpin screw 16, as shown in FIG. 7, the positioning bending ear portion 13c is bent with respect to the non-overlapping portion 13f, for example, about two or three times. By moving, the positioning bending ear 13c is separated from the non-overlapping portion 13f. At this time, a cutting square hole (cutting hole) 13d is formed at the base of the positioning bending ear portion 13c, and the positioning bending ear portion 13c and the non-overlapping portion 13f are different from the overlapping portion 13e. Since the plate thickness is relatively thin, it can be easily and cleanly separated by the operator's hand 15.

  Next, the superior action of the smoke-proof door device 51 of the elevator according to the present embodiment will be described while comparing with the comparative examples described in FIGS. 8-11 is a figure of the same aspect as FIGS. 3-6 regarding a comparative example, respectively.

  When a smoke-proof door is combined with an existing three-way frame, the painted surface of the existing three-way frame vertical frame is often not flat but rough. Here, since the existing three-way frame is fixed to the concrete, it is very difficult to remove it first. Furthermore, if the coating is modified without removing the existing three-sided frame, it will be difficult to remove the old coating, finish the base, finish the base, and finish the coating, requiring high technical skills and a long work period. It was very difficult to obtain the same level. Regarding this problem, first, as an aspect other than the present invention, an aspect of a comparative example will be given.

  That is, the comparative example is a mode in which a polished flat bar (flat plate) such as stainless steel is stretched on the hoistway side surface 2c of the three-way frame vertical frame 2. The polished flat bar 8 is provided with a bolt through hole 8a including a countersunk hole 8b. Further, using the magnet holding jig 11 and the positioning member 11a, the polished flat bar 8 is held in place, and is transferred to the three-sided frame vertical frame 2 so as to correspond to the bolt through-holes 8a. The polished flat bar 8 is fixed to the three-way frame vertical frame 2 by a flat tapping screw 8c penetrating the bolt through hole 8a.

  However, in such a comparative example, first, there arises a problem that the polished flat bar 8 itself is a special product and the material is very expensive. Furthermore, if the polished flat bar 8 is made into a thin plate, it will be lifted and deformed between the bolted part and the non-stopped part. Therefore, the polished flat bar 8 must be made of a thick member. Will also contribute to higher costs.

  In addition, the polished flat bar 8 needs to be fixed to a three-sided frame with a countersunk screw to prevent the bolt head from coming to the surface. For this reason, drill holes and countersink holes and chamfering are required at the factory. It becomes. Moreover, since the polished flat bar 8 is made of a hard material, there is a problem that such processing is difficult. In addition, the combination of the countersunk hole 8b and countersunk tapping screw 8c is good when accuracy is ensured as shown in FIG. 9B, but as shown in FIG. 9C. If a pitch error occurs, the head of the flat tapping screw 8 c may be polished and lifted from the surface of the flat bar 8.

  For the reason described above, it is necessary to use a member having a certain thickness for the polished flat bar 8. However, when the magnet holding jig 11 is used for holding, the magnetic force is increased by the amount of the thickness. There is also a possibility that the polished flat bar 8 is not properly pressed. Furthermore, it is difficult to form the positioning material 11a on the thick polished flat bar 8, and it is provided for the magnet pressing jig 11, and positioning and pressing cannot be performed independently. There is also a problem that workability until both positioning and pressing are properly completed is poor.

  As described above, in the comparative example, many problems occur. If the smoke shielding door device 51 of the elevator according to the present embodiment is used, the following excellent effects can be obtained. First, also in the smoke-proof door device 51 of the elevator, the folding band 13 is attached to the surface of the three-way frame vertical frame 2, so that even if the painted surface of the existing three-side frame is not flat and rough, the three-way frame It is possible to suitably combine the smoke-proof doors without removing or modifying the paint. Further, in the present embodiment, since the folded band 13 is used instead of a polished flat bar, which may be a simple sheet-like member, the cold-worked plate member supplied in large quantities to the general market is used. And can be implemented without significant cost increase.

  Furthermore, although it is originally a thin plate, when it is applied as a helix fold band 13, a helix fold process is performed, so that a sufficient thickness can be obtained, a desired strength can be ensured, and a three-way frame can be secured. It is possible to suppress lifting. In addition, due to the helical fold, a relatively thick overlapping portion 13e and a relatively thin non-overlapping portion 13f appear, and the trast pin screw 16 is used for the thin non-overlapping portion 13f. There is an advantage that the head of the screw member is less likely to get in the way. Further, due to this, as a screw member, it is not compelled to use a flat tapping screw whose head is completely flat, and a more general truss pinning screw 16 can be used. Therefore, the round hole 13b for bolt insertion may be a simple hole and does not require laborious work such as countersink processing. In addition, the processing of the bolt-through round hole 13b itself is not a hard object such as a polished flat bar, but only has to be perforated in a non-overlapping portion 13f of a thin plate, so that workability is extremely good and processing cost is also low. It can be kept low. In addition, unlike the combination of the countersunk hole and countersunk tapping screw, it is simply a combination of the round hole 13b for bolt passage and the truss tapping pin 16, and is shown in FIGS. 4 (b) and (c). As described above, the protruding amount of the head of the truss pin screw 16 does not change depending on the positional relationship between the bolt through-hole 13b and the truss pin screw 16, that is, the clearance margin of pitch deviation can be increased.

  Further, in the magnet pressing jig 14, even when the folding band 13 is pressed and moved to the three-side frame side and the hole is machined, the region to which the magnet pressing jig 14 is applied is the non-overlapping portion 13f of the thin plate. As it is easy to pass, a strong holding force of the magnet can be obtained, and displacement during drilling can be prevented. Furthermore, since the non-overlapping portion 13f of the thin plate is present in the helical fold band 13, a positioning bent ear portion 13c can be provided on the non-overlapping portion 13f, and the positioning fold is different from the magnet pressing jig 14. Both positioning and pressing can be appropriately completed by positioning with the bending ear 13c. In addition, since the non-overlapping portion 13f and the positioning bending ear portion 13c are thin plates, they can be easily processed, and can be easily provided with a cut-out square hole 13d. The work of bending and separating the bending ear portion 13c is also easy. That is, both workability and installation workability are extremely easy.

  Further, originally, the folding process for obtaining the folding band 13 is a folding process. However, the leading edge side of the overlapping portion 13e has a large R finish and does not require a chamfering process. In addition, when the landing door 4 is opened and closed, the tip of the smoke shielding sheet 10 can easily get into the overlapping portion 13e, and the life of the smoke shielding sheet 10 can be extended by reducing the frictional load. It has been.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  1 landing, 2 three-way frame vertical frame, 2c hoistway side surface, 4 landing door (smoke-proof door), 10 smoke-proof sheet, 13 helix belt, 13b round hole for holes (hole), 13c bending bend for positioning , 13d Cutout square hole, 13e Overlapping part, 13f Non-overlapping part, 14 Magnet pressing jig, 16 Trapping pin screw (screw member).

Claims (4)

A fold belt supported by a three-way frame,
A smoke-shielding member supported by a smoke-shielding door, and a smoke-shielding member that blocks the gap between the spiral fold belt and the smoke-shielding door;
The helical fold band is provided so as to cover the corresponding surface of the three-way frame,
The helical band has an overlapping portion and a non-overlapping portion that partially overlap each other by folding the plate-like member,
The helical fold band is attached to a corresponding surface of the three-way frame by a screw member in the non-overlapping portion,
The smoke shielding member closes the gap by contacting the overlapping portion in the helical fold belt,
Elevator smoke barrier door device. A smoke shielding door device for an elevator that closes a gap between the spiral folding band and the smoke shielding door by contacting a smoke shielding member supported by the smoke shielding door and a helical folding band supported by the three-way frame. The installation method of
A step of preparing the helical fold band having an overlapping portion and a non-overlapping portion which are partially overlapped by folding so as to partially overlap one end side of the plate-like member;
An arrangement step of arranging the helical fold band so as to cover a corresponding surface of the three-way frame;
In the non-overlapping portion, a fixing step of fixing the helical fold band to the three-way frame by a screw member;
A method for installing a smoke-proof door device of an elevator equipped with The non-overlapping portion is provided with a positioning bent ear portion having a cut-out hole in the base portion,
The helical fold band is positioned at an appropriate position of the three-sided frame by the positioning bending ear before the fixing step,
The positioning bending ear portion is separated by being bent with respect to the non-overlapping portion after the fixing step.
The installation method of the smoke-proof door apparatus of the elevator of Claim 2. The non-overlapping part is provided with a hole through which the screw member is inserted,
The elevator smoke-proof door device installation method includes a transfer hole machining step for the three-way frame, which is performed after the arrangement step and before the fixing step.
The transfer hole processing step is performed in a state where the helical fold band is pressed against the three-way frame by the magnetic force of the magnet pressing jig disposed in the non-overlapping portion.
The installation method of the smoke-proof door apparatus of the elevator of Claim 2 or 3.

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