JP2004332381A - Openable door with smoke insulating performance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an openable door with smoke insulation performance, which ensures high smoke insulating performance by maintaining the sealing performance of a rubber packing with respect to the door, prevents exposure of the rubber packing even under normal conditions, i.e. when door main bodies are opened, exhibits good appearance, and protects the rubber packing from being excessively pressed at the time of rotation of the door main bodies. <P>SOLUTION: The openable door is formed of the axially supported door main bodies 4a, 4b, and a door frame 3 enclosing the openable door main bodies 4a, 4b when closed. The door frame 3 has a frontage forming portion 3a extending in parallel with the door main bodies 4a, 4b in a closed position, and the frontage forming portion 3a has a protrusion 7 formed at a rear edge thereof in a manner extending an inner peripheral surface of the frontage forming portion 3a. The protrusion has a right-triangular cross section. Further the protrusion 7 has mounted thereon the rubber packing 9 which is formed of a rubber plate band, in a manner protruding from a corner of the protrusion 7. Thus the rubber packing abuts on the door main bodies 4a, 4b at a location of a face plate 10 inside the periphery of the door main bodies 4a, 4b when they are closed. Further an outer corner portion of each of the door main bodies 4a, 4b, closer to an axially supported location, has a tapered chamfer portion 11 by notching. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a hinged door having smoke blocking performance as one of fire prevention doors.
[0002]
[Prior art]
In accordance with the revision of the Building Standards Law, in Ministry of Construction Notification No. 1111 regarding flame and smoke barrier performance of elevators, elevator landing halls were recognized as "fireproof doors with smoke barrier performance" in the elevator hoistway. Due to the expiration on May 31, 2014, the building dated June 1 was required to be newly partitioned with fire-protection equipment with flame and smoke barriers.
[0003]
Elevator landing doors are structurally "not expected to have smoke barrier performance", so it is necessary to provide a fire protection compartment outside the elevator hall doors. Will be installed.
[0004]
Note that this is a fire protection section corresponding to the newly revised law, and there is no patent document or the like for this at present.
[0005]
[Problems to be solved by the invention]
In order to provide a fire prevention section outside the elevator landing door as described above, as shown in FIG. 5, providing a door frame 3 and a smoke blocking door by door bodies 4a and 4b as opening doors in the opening 2 of the elevator hall 1. Is proposed. In the figure, reference numeral 5 denotes a support for supporting the door frame 3.
[0006]
The door frame 3 and the door bodies 4a and 4b are provided with a front part parallel to the closed door bodies 4a and 4b with respect to the door bodies 4a and 4b, which are pivotally supported, in order to impart smoke-proof performance. 3a was formed to have a substantially L-shaped cross section, and a rubber packing 6 was provided inside the frontage portion 3a so as to be in contact with the door bodies 4a and 4b. The rubber packing 6 has a tubular shape.
[0007]
The door bodies 4a and 4b are connected to each other at their ends by phase jacks, and one of the door bodies 4a and 4b is provided with a rubber packing 6 which is in contact with the other.
[0008]
Since the door is a smoke shield door, the door bodies 4a and 4b are normally opened and the door bodies 4a and 4b are closed when a fire occurs.
[0009]
In the smoke shield door shown in FIG. 4, the rubber packing 6 is always exposed to the outside with the door bodies 4a and 4b opened, and the appearance is poor. In particular, the elevator hall, like the entrance hall, is a face area, and if rubber packing is always exposed, it will give a rustic feeling. In order to prevent the rubber packing from being seen outside when the door is opened, especially when the rubber packing 6 is provided on the door frame 3 side as shown in FIG. The positional relationship is very difficult, and the rubber packing 6 cannot sufficiently come into contact with the door bodies 4a, 4b, which may impair the smoke shielding performance.
[0010]
The object of the present invention is to eliminate the disadvantages of the conventional example, to maintain the sealing performance of the rubber packing against the door reliably and to maintain high smoke shielding performance, and to always keep the rubber packing outward even when the door body is open. An object of the present invention is to provide a hinged door which is not exposed, has a good appearance, and has a smoke-proofing property which does not unnecessarily crush and damage the rubber packing even when the door body is rotated.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention firstly comprises an opening door body that is pivotally supported and a door frame that surrounds the opening door body when the opening door body is closed, and the door frame is arranged in parallel with the closed door body. A frontage forming portion is formed, and a ridge having a right-angled triangular cross section is formed at the back end of the frontage forming portion so as to extend the inner peripheral surface of the frontage forming portion, so as to protrude from the corner of the ridge. A rubber packing material is attached to the door body and the door body can be joined to the closed door body on the face plate inward from the outer periphery of the door body. The gist of the invention is that chamfering is performed by a tapered notch.
[0012]
Secondly, the door body opens and closes by about 90 °, and in an open state, the face plate is positioned so as to be substantially aligned with the inner peripheral surface of the frontage forming portion of the door frame, or the door body opens and closes by about 180 °. In the open state, the gist is to position the outer peripheral surface of the door body so as to be substantially aligned with the inner peripheral surface of the frontage forming portion of the door frame.
[0013]
According to the first aspect of the present invention, the door frame and the door main body are brought into contact with the rubber packing against the door main body in a closed state, whereby a seal is made, and smoke is prevented. The door frame and the door main body close the opening of the elevator hall, and a fire prevention section can be provided outside the elevator landing door.
[0014]
Also, since the rubber packing comes into contact with the face plate inside the outer periphery of the door body, even if there is a slight displacement, the contact can be maintained firmly and a seal without looseness can be obtained.
[0015]
Further, the rubber packing is a rubber packing material made of a rubber plate band, which is formed with a ridge having a right-angled triangular cross-section so as to extend the inner peripheral surface of the frontage forming portion at the back end of the frontage forming portion of the door frame. Since the rubber packing material of the rubber band is attached so as to protrude from the corner of the ridge, the rubber packing can be brought into contact with the door body in the closed state by the amount of the ridge, and the seal can be sealed. The rubber packing can be improved and the rubber packing does not have to be exposed to the outside. In addition, since the outer peripheral corner of the door body on the pivoted side is chamfered by a tapered notch, the rubber packing can be prevented from being damaged by forcibly pressing the rubber packing at the corner when the door body rotates.
[0016]
According to the second aspect of the present invention, in addition to the above-described operation, when the door body is opened at 90 °, in the opened state, the face plate is positioned so as to be substantially aligned with the inner peripheral surface of the frontage opening portion. In addition, the door frame and the door body are almost aligned with a ridge having a right-angled triangular cross section therebetween, so that the rubber packing does not need to be exposed to the outside, and the appearance can be secured.
[0017]
According to the third aspect of the present invention, similarly to the operation of the second aspect, when the door main body is opened by 180 °, the outer peripheral surface of the door main body in the opened state is the inner peripheral surface of the frontage opening portion of the door frame. The rubber packing does not need to be exposed to the outside so that the appearance can be secured.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a cross-sectional plan view showing a first embodiment of a door having smoke-proofing performance of the present invention, FIG. 2 is a vertical sectional side view of the same, and FIG. In the same manner as described above, a fire prevention section is provided outside the elevator landing door, but a door frame 3 and a smoke blocking door including door bodies 4a and 4b as opening doors are provided in the opening 2 of the elevator hall 1. In FIG. 1, the same structure as the connection of the door body 4a to the door frame 3 exists at the shaft support portion of the door body 4b, but is not shown.
[0019]
In the present invention, the frontage forming portion 3a is formed so that the door frame 3 is parallel to the closed door bodies 4a and 4b. The illustrated example is a door when the door bodies 4a and 4b open 90 degrees.
[0020]
A ridge 7 having a right-angled triangular cross section is formed at the back end of the frontage forming portion 3a of the door frame 3 so as to extend the inner peripheral surface 3b of the frontage forming portion 3a. That is, one of the right-angled sides of the ridge 7 having a right-angled triangular cross section is continuous with the inner peripheral surface 3b, and the oblique side of the triangle faces the back side of the frontage forming portion 3a.
[0021]
The abutment plate 8 is screwed to the frontage forming portion 3a so as to overlap the oblique side of the triangle of the ridge 7 having a right-angled triangular cross section, and the rubber plate 9 is formed by the abutment plate 8 and the ridge 7. So that the rubber packing material 9 protrudes from the corner of the ridge 7.
[0022]
The rubber packing material 9 can be joined to the face plate 10 inside the outer periphery of the door bodies 4a, 4b with respect to the closed door bodies 4a, 4b. (Point A in the figure, a position that enters inside the outer peripheral corners of the door bodies 4a and 4b.)
[0023]
Further, the outer peripheral corners of the door bodies 4a and 4b on the pivoted side were chamfered 11 by tapered notches. In the figure, reference numeral 12 denotes an auto hinge at the shaft support.
[0024]
With respect to the pivotal support positions of the door bodies 4a and 4b, when the door bodies 4a and 4b are open, the face plate 10 is formed by the inner peripheral surface 3b of the frontage forming portion 3a of the door frame 3 and the frontage forming portion 3a of the frontage forming portion 3a. The inner circumferential surface 3b is positioned so as to be substantially aligned with one of the right-angled sides of the ridge 7 having a triangular cross-section having a right-angled cross section and extending.
[0025]
The combination of the mutual ends (lock parts) of the door bodies 4a and 4b is based on a phase-coupling, and a mating plate 13 as an extension of the face plate 10 protrudes from the tip of one of the door bodies 4b. A sealing material 15 made of adhesive rubber is provided on the back side of the mating plate 13 and, when closed, is provided in a recess of the other door body 4a. (Opening 2 side of elevator hall 1)
[0026]
On the surface opposite to the door main bodies 4a and 4b (opposite to the elevator hall 1), a rubber packing material 14 made of a rubber plate band is projected from the end side of the door main body 4a, and this is inserted into the other door main body. 4b.
[0027]
Further, a seal between the door frame 3 and the upper and lower sides of the door bodies 4a and 4b is provided. As shown in FIG. 2, a rubber packing material 14 made of a rubber plate band is projected from upper and lower ends of the door bodies 4a and 4b. This is applied to the door frame 3.
[0028]
Next, the usage will be described. The present invention is a door that is closed so as to exhibit smoke shielding performance in an emergency such as when a fire occurs, and that is always open.
[0029]
In this embodiment, the door bodies 4a and 4b open at 90 degrees. In this case, the door bodies 4a and 4b are housed in recesses formed in the wall. In this way, the face plate 10 of the door bodies 4a and 4b forms The inner peripheral surface 3b of the portion 3a and the inner peripheral surface 3b of the frontage forming portion 3a are substantially aligned with one of the right sides of the ridge 7 having a right-angled triangular cross-section. The material 9 is also not exposed to the outside and has a good appearance.
[0030]
In a state where the door bodies 4a and 4b are closed to perform smoke shielding, as shown in FIG. 1, the outer periphery of the door bodies 4a and 4b is smaller than the outer circumference of the door bodies 4a and 4b in a state where the rubber packing material 9 is closed. Sealing is performed by abutting on the face plate 10 inwardly, and the door bodies 4a and 4b are formed at a mutual end portion (lock portion), and furthermore, by the sealing material 15 and rubber packing material 14 made of adhesive rubber. Double seals are provided for complete smoke shielding.
[0031]
Further, a seal with a rubber packing material 14 is provided above and below the door frame 3 and the door bodies 4a and 4b.
[0032]
In particular, on the door frame 3 side, the smoke only goes around the outer peripheral ends of the door bodies 4a and 4b, and the gap between the door frame 3 and the door bodies 4a and 4b is narrowed by a ridge 7 having a right-angled triangular cross section. Since this portion is tightly sealed with the rubber packing material 9, high smoke shielding performance can be exhibited.
[0033]
The outer corners of the door bodies 4a and 4b on the pivoted side are chamfered by tapered notches, so that the outer corners are rotated when the door bodies 4a and 4b are closed. The rubber packing material 9 is prevented from hitting the rubber packing material 9 and is not damaged by forcibly pressing the rubber packing material 9 at a corner.
[0034]
FIG. 4 shows a second embodiment of the present invention, in which the door bodies 4a and 4b are opened by 180 °. The door frame 3 is similar to the first embodiment in that a frontage forming portion 3a is formed so as to be parallel to the closed door bodies 4a and 4b, and the configuration of the door frame 3 and the ridges 7 having a right-angled triangular cross section are provided. The configuration of the rubber packing material 9 is the same as that of the first embodiment.
[0035]
As for the pivotal support positions of the door bodies 4a, 4b, when the door bodies 4a, 4b are open, the outer peripheral surface 16 of the door bodies 4a, 4b has the inner peripheral surface 3b of the frontage forming portion 3a of the door frame 3 and The inner peripheral surface 3b of the frontage forming portion 3a is positioned so as to be substantially aligned with one of the right-angled sides of the ridge 7 having a right-angled triangular cross section.
[0036]
The method of use is the same as that of the first embodiment, except that the door bodies 4a and 4b are opened at 180 ° and the outer peripheral surface 16 of the door bodies 4a and 4b forms the frontage of the door frame 3 in a state where the door bodies are always opened. The inner peripheral surface 3b of the portion 3a and the inner peripheral surface 3b of the frontage forming portion 3a are substantially aligned with one of the right sides of the ridge 7 having a right-angled triangular cross-section. The material 9 is also not exposed to the outside and maintains its appearance.
[0037]
In the state where the door bodies 4a and 4b are closed to perform smoke shielding, as shown in FIG. 3, the outer periphery of the door bodies 4a and 4b is lower than the door bodies 4a and 4b where the rubber packing material 9 is closed. Sealing is performed by abutting on the face plate 10 inwardly, and the door bodies 4a and 4b are formed at a mutual end portion (lock portion), and furthermore, by the sealing material 15 and rubber packing material 14 made of adhesive rubber. Double seals are provided for complete smoke shielding.
[0038]
【The invention's effect】
As described above, the opening door having the smoke blocking performance of the present invention can maintain the sealing performance of the rubber packing against the door reliably and maintain a high smoke blocking performance, and can always maintain the rubber packing even when the door body is open. Are not exposed to the outside, the appearance is good, and even when the door body is rotated, the rubber packing is not unnecessarily crushed and damaged.
[Brief description of the drawings]
FIG. 1 is a cross-sectional plan view showing a first embodiment of a hinged door having continuous smoke blocking performance of the present invention.
FIG. 2 is a vertical sectional side view showing the first embodiment of the hinged door having continuous smoke-shielding performance of the present invention.
FIG. 3 is an enlarged cross-sectional plan view of a main part showing the first embodiment of the hinged door having continuous smoke blocking performance of the present invention.
FIG. 4 is a cross-sectional plan view of a main part showing a second embodiment of a hinged door having continuous smoke blocking performance of the present invention.
FIG. 5 is a cross-sectional plan view showing one proposed form of a hinged door having continuous smoke shielding performance.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Elevator hall 2 ... Opening 3 ... Door frame 3a ... Frontage forming part 3b ... Inner peripheral surface 4a, 4b ... Door main body 5 ... Orientation 6 ... Rubber packing 7 ... Projection 8 ... This plate 9 ... Rubber packing material 10 ... Face plate 11 ... Chamfer 12 ... Auto hinge 13 ... Mating plate 14 ... Rubber packing material 15 ... Seal material 16 ... Outer peripheral surface

Claims (3)

An open door body that is pivotally supported, and a door frame that surrounds the open door body when the open door body is closed. The door frame forms a frontage forming portion so as to be parallel to the closed door body, and a back end of the frontage forming portion. A ridge with a right-angled triangular cross section is formed so as to extend the inner peripheral surface of the frontage forming portion in the portion, and a rubber packing material with a rubber plate band is attached so as to protrude from the corner of this ridge, and the closed state is obtained. The door body can be joined to the inner face of the door body more inward than the outer periphery of the door body, and the outer corner of the door body on the supported side is chamfered by a tapered notch. Door with smoke-proof performance. 2. The door according to claim 1, wherein the door body opens and closes by about 90 [deg.], And in an opened state, the face plate is positioned so as to be substantially aligned with the inner peripheral surface of the frontage forming portion of the door frame. 2. The door according to claim 1, wherein the door body opens and closes by about 180 [deg.], And when the door body is open, the outer peripheral surface of the door body is positioned so as to be substantially aligned with the inner peripheral surface of the front door opening portion.

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