Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
  • B66B13/30—Constructional features of doors or gates
  • B66B13/303—Details of door panels
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
  • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
  • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/70—Door leaves
  • E06B3/82—Flush doors, i.e. with completely flat surface
  • E06B3/827—Flush doors, i.e. with completely flat surface of metal without an internal frame, e.g. with exterior panels substantially of metal

Definitions

• the present invention relates to a landing door used for an elevator.
• FIG. 6 is a front view showing the entrance and exit of the landing at Elevate.
• a landing door consisting of two door panels 11 separates the landing floor 16 in front of the elevator from the hoistway where the elevator car room rises and falls.
• a frame is provided around the entrance by entrance columns 14.
• FIG. 7 is a schematic diagram showing a cross section of the right side surface of FIG.
• the door panel 11 is fitted in a groove of a threshold 15 provided at a lower portion, and is movable in a direction perpendicular to the paper surface of FIG.
• FIG. 8 is a perspective view showing the back surface of the door panel 11, that is, the surface on the hoistway side.
• a reinforcing body 12 is fixed to a surface of the door panel 11 opposite to the design surface in order to increase the rigidity of the door panel 11.
• FIG. 9 is a view showing a cross section taken along the line I-I 'of FIG. As shown in Fig. 9, the door panel 11 and the reinforcement 12 are
• Glued by three Generally, non-thermoplastic adhesives are used as metal adhesives. As described above, in the conventional elevator doors of the elevator, the rigidity is increased by fixing and integrating the door panel 11 and the reinforcing body 12.
• the rigidity of the door panel 11 can be increased by the reinforcing body 12, but the door panel 11 is deformed by high heat at the time of fire or the like. There was a problem.
• FIG. 10 is a schematic diagram showing a state in which the door panel 11 has been deformed by high heat from the state of FIG.
• Fig. 10 when a fire occurs in the building where the elevator is installed, the door panel 11 is heated from the 16th floor of the elevator floor and the door panel 11 is supplemented. Strong body 1 2 expands thermally. At this time, the degree of thermal expansion differs between the door panel 11 and the reinforcing body 12 due to the difference in thermal conductivity and shape between the door panel 11 and the reinforcing body 12. Are completely integrated, and as a result, the door panel 11 is warped.
• the gap between the door post 14 and the door panel 11 at the entrance is increased, and the gap between the two door panels 11 is also increased.
• the smoke and flames from the fire entered the elevators and elevators of the elevator causing a problem that the fire resistance of the elevator could not be maintained.
• smoke and flames could enter the hoistway, causing fire to spread to other floors of the building.
• the present invention provides an elevator door that can suppress warpage and deformation of a door panel due to high heat and suppress leakage of smoke and flame even when a fire occurs in a building. With the goal. Disclosure of the invention
• the present invention relates to a door panel, an elevator provided with a reinforcing member for increasing rigidity, a door panel, a reinforcing member provided on the back surface of the door panel, and an adhesive bonding the door panel and the reinforcing member. And a thermal expansion agent disposed between the door panel and the reinforcing member. If the door panel is heated due to a fire or the like, the thermal expansion agent between the door panel and the reinforcing body expands and separates the door panel and the reinforcing body. Even if it is, the door panel does not warp and deform.
• the thermal expansion agent is made of an inorganic material in the above-described improved elevator door of the elevator.
• the door panel and the reinforcing member are connected by a joint piece. Even if the thermal expansion agent expands in the event of a fire and separates the door panel and the reinforcing body, the reinforcing body is connected to the door panel by a joint piece, so it is possible to prevent the reinforcing body from falling into the hoistway etc. .
• a reinforcing member is provided with a concave portion into which a thermal expansion agent is inserted. Since a concave portion is provided in the reinforcing member so that the thermal expansion member is surrounded between the reinforcing member and the door panel, a force can be reliably applied in a direction in which the reinforcing member is separated by the volume expansion of the thermal expansion member.
• the adhesive in the landing door of the improved elevator, is a thermoplastic adhesive. Since the thermoplastic adhesive softens in the event of a fire, the door panel and the reinforcement can be reliably separated by increasing the volume of the thermal expansion material.
• FIG. 1 is a perspective view showing a landing door of the elevator according to the first embodiment of the present invention.
• FIG. 2 is a horizontal sectional view showing the landing door of the elevator according to the first embodiment of the present invention.
• FIG. 3 is a horizontal sectional view showing a state where the landing door of the elevator according to the first embodiment of the present invention is heated.
• FIG. 4 is a horizontal cross-sectional view showing a landing door of the elevator in accordance with a second embodiment of the present invention.
• FIG. 5 is a horizontal cross-sectional view showing a state where a landing door of an elevator is heated according to a second embodiment of the present invention.
• FIG. 6 is a schematic view showing the appearance of the front of a conventional landing door for an elevator.
• FIG. 7 is a side sectional view showing a side surface of a conventional landing door for an elevator.
• Fig. 8 is a #) view showing a conventional landing door for the elevator.
• FIG. 9 is a horizontal sectional view showing a conventional landing door of the elevator.
• FIG. 10 is a side sectional view showing a state in which a conventional landing door is heated and a door panel is warped.
• FIG. 1 is a perspective view showing a landing door of an elevator according to a first embodiment of the present invention.
• FIG. 2 is a diagram showing a cross section taken along the dashed line I- ⁇ in FIG.
• a reinforcing body 2 is provided on the back surface of the door panel 1, and the reinforcing body 2 and the door panel 1 are bonded by an adhesive 3.
• a thermoplastic adhesive is used as the adhesive 3.
• a thermal expansion agent 4 is inserted between the door panel 1 and the reinforcement 2.
• the thermal expansion agent 4 is made of a foaming material having a large volume expansion coefficient, and is preferably made of an inorganic material.
• a concave portion 2a is formed by bending, and a thermal expansion agent 4 is inserted into the concave portion.
• FIG. 3 shows a state in which the door panel 1 having such a configuration is heated by a fire or the like.
• FIG. 3 is a diagram showing a cross section taken along a dashed line I-I line in FIG. 1 similarly to FIG.
• the thermal expansion agent 4 expands by heating and its volume increases. For this reason, a force is applied from the thermal expansion agent 4 to the reinforcement 2 and the door panel 1 in a direction to separate the reinforcement 2 and the door panel 1 from each other.
• the flatness of the door panel 1 is maintained at the same level as before the heating, so that no gap is generated between the door panel 1 and the entrance of the landing.
• no gap is generated between the door panels 1. Therefore, it is possible to prevent smoke and flame from entering the elevator and elevator from the entrance of the elevator at Yerebe.
• the thermal expansion agent 4 as an inorganic material, it is possible to suppress the generation of smoke and flame on the back side of the door panel, and it is possible to enhance fire prevention performance.
• a landing door for an elevator according to a second embodiment of the present invention will be described with reference to FIGS.
• the landing door of the elevator according to the second embodiment is configured by connecting the door panel 1 and the reinforcing body 2 of the first embodiment to one or more Are connected at the location of.
• FIG. 4 is a cross-sectional view showing the door panel 1 and the reinforcing body 2 before being heated.
• the joint piece 5 for connecting the reinforcing member 2 and the door panel 1 is made of, for example, a metal or inorganic material plate or wire, and both end portions are fixed to the reinforcing member 2 and the door panel 1, respectively.
• the configuration other than the joint piece 5 is the same as that of the first embodiment.
• FIG. 5 shows a state where the landing door of the elevator according to the second embodiment is heated.
• the thermal expansion agent 4 expands, and the reinforcement 2 is separated from the door panel 1.
• the reinforcing member 2 and the door panel 1 are connected by the joint piece 5
• the reinforcing member 2 is completely separated from the door panel 1 even if the adhesive portion by the adhesive 3 is peeled off. Will not be split. Therefore, it is possible to prevent the reinforcing body 2 from separating from the door panel 1 and dropping in the hoistway in the event of a fire, and to prevent other members such as the communication cable and the cab from being damaged by the falling.
• the elevator door of the elevator in accordance with the present invention prevents the entrance of the elevator from the entrance and exit of the elevator from entering the hoistway when the door panel is heated, such as in the event of a fire. It is useful for various types of elevators and elevators as landing doors for elevators with improved fire prevention performance and safety.

Landscapes

• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Elevator Door Apparatuses (AREA)
• Special Wing (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11737648

Family Applications (1)

Country Status (5)

Cited By (2)

Families Citing this family (6)

Citations (3)

Family Cites Families (10)

• 2001
  • 2001-08-17 CN CNB018174868A patent/CN100363248C/zh not_active Expired - Fee Related
  • 2001-08-17 EP EP01956931A patent/EP1418150B1/en not_active Expired - Lifetime
  • 2001-08-17 WO PCT/JP2001/007072 patent/WO2003016193A1/ja active Application Filing
  • 2001-08-17 DE DE60141920T patent/DE60141920D1/de not_active Expired - Lifetime
  • 2001-08-17 JP JP2003521132A patent/JP4821089B2/ja not_active Expired - Fee Related

Patent Citations (3)

Non-Patent Citations (1)

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