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KR-20260067169-A - 4-WAY SEALED FIRE DOOR

KR20260067169AKR 20260067169 AKR20260067169 AKR 20260067169AKR-20260067169-A

Abstract

A four-way sealed fire door according to one embodiment of the present specification is a sealed fire door in which the fire door is sealedly coupled to four directions of a door frame, wherein the fire door comprises a base frame provided on the inner side of the door and a cover frame provided on the outer side of the door parallel to the base frame, the cover frame having an end that covers the front of the door frame and the end of the base frame.

Inventors

  • 오경희

Assignees

  • 주식회사 도어랩

Dates

Publication Date
20260512
Application Date
20241105

Claims (11)

  1. In a sealed fire door in which the door is sealedly joined to the four directions of the door frame, The above fire door is A base frame provided on the inner side of the door; and A cover frame provided on the outer side of the door, parallel to the base frame, and having an end that covers the front of the door frame and the end of the base frame. A four-way sealed fire door characterized by including
  2. In paragraph 1, The above cover frame is A four-way sealed fire door characterized by including an outer frame surface facing the outside and a first cover fold surface formed by folding inward from the end of the outer frame surface.
  3. In paragraph 2, The above base frame is It includes an inner frame surface facing the interior, a first base bend surface formed by bending vertically outward from an end of the inner frame surface, and a second base bend surface formed by bending vertically outward from an end of the first base bend surface. A four-way sealed fire door characterized in that the second base bending surface is fitted and coupled between the outer frame surface and the first cover bending surface.
  4. In paragraph 3, It further includes a gasket provided between the first cover folded surface and the front surface of the door frame, and The above gasket is A four-way sealed fire door characterized by including a first gasket surface in contact with the first cover folded surface and a second gasket surface formed by folding diagonally from one end of the first gasket surface, with the end end contacting the front of the door frame.
  5. In paragraph 4, An insulating pad having a shape that wraps around the second base folded surface and provided along the end of the outer frame surface and the inner surface of the first cover folded surface. A four-way sealed fire door characterized by further including
  6. In paragraph 2, The above cover frame further includes a second cover fold surface formed by folding vertically inward from the end of the first cover fold surface, and The above base frame is It includes an inner frame surface facing the interior, a first base bending surface formed by bending vertically toward the outside from an end of the inner frame surface and provided on the outside of the second cover bending surface, and a second base bending surface formed by bending inward so as to contact the first base bending surface from an end of the first base bending surface. A four-way sealed fire door characterized by further including an insulating pad provided between the second cover folded surface and the second base folded surface, and a gasket provided between the first cover folded surface and the front surface of the door frame.
  7. In paragraph 2, The above cover frame is It further includes a second cover bending surface formed by bending vertically inward from the end of the first cover bending surface, and a third cover bending surface formed by bending inward so as to contact the second cover bending surface from the end of the second cover bending surface. The above base frame is It includes an inner frame surface facing the interior, a first base bending surface formed by bending diagonally at the end of the inner frame surface, and a second base bending surface formed by bending vertically toward the outside at the end of the first base bending surface and provided on the inner side of the third cover bending surface. A four-way sealed fire door characterized by further including an insulating pad provided between the third cover folded surface and the second base folded surface, and a gasket provided between the first cover folded surface and the front surface of the door frame.
  8. In paragraph 1, The above cover frame is It further includes an outer frame surface facing the outside, a first cover fold surface formed by folding vertically toward the inside from an end of the outer frame surface, and a second cover fold surface formed by folding vertically toward the inside from an end of the first cover fold surface. The above base frame is It includes an inner frame surface facing the interior, a first base bending surface formed by bending vertically toward the outside from an end of the inner frame surface, and a second base bending surface formed by bending inward at an end of the first base bending surface so as to contact the first base bending surface. It further includes an inner frame provided on the inner side of the outer frame surface, the first cover folded surface, and the second base folded surface, and A four-way sealed fire door characterized by further including an insulating pad provided between the second base bending surface and one side of the inner frame, and a gasket provided between a part of the inner surface of the inner frame and the front of the door frame.
  9. In paragraph 3, The second base bending surface is formed by bending three times vertically toward the outside from the end of the first base bending surface, and A four-way sealed fire door characterized in that the third folded surface among the second base folded surfaces is fitted and coupled between the outer frame surface and the first cover folded surface.
  10. A first fire door comprising a fire door according to any one of paragraphs 1 through 9; and A second fire door comprising a cover frame arranged staggered and parallel to the cover frame of the first fire door, based on the side where the door is opened and closed. A four-way sealed fire door including
  11. In Paragraph 10, Based on the side where the above door is opened and closed, The cover frame of the first fire door is positioned to face the outer direction of the door and has a shape with a bent end, and a base frame is fitted and coupled to the bent end. A four-way sealed fire door characterized in that the base frame of the second fire door is positioned to face the inner direction of the door, has a bent end shape, and a cover frame is fitted and coupled to the bent end.

Description

4-Way Sealed Fire Door The present invention relates to a fire door with enhanced sealing function for four directions of the door frame. In general, fire doors are installed at entrances or doorways of multi-unit dwellings such as apartments and villas, as well as offices, not only to block the interior from the exterior but also to prevent the spread of smoke and heat in the event of a fire. Fire doors must ensure airtightness to satisfy standards for preventing heat loss, blocking dust and hazardous substances, and preventing condensation, in addition to smoke control performance to prevent smoke penetration in the event of a fire, for the efficient energy management of the building. Meanwhile, the door frame of the entrance or doorway where the fire door is installed is formed by combining a vertical frame in the height direction and a horizontal frame in the width direction, and the door end of the fire door is installed with airtightness in each frame of the door frame. In maximizing the airtightness of such fire doors, the issue of minimizing the space between the door and the door frame has always existed, and methods such as optimizing the fire door material or utilizing airtightness measures are commonly used. However, in addition to the aforementioned methods, it is fundamentally necessary to manufacture fire doors that ensure airtightness in all directions of the door frame. Related prior art is Registered Patent Publication No. 10-1936903 (Title of invention: Insulation material unit and fire door assembly using the same, Date of publication: January 09, 2019). FIG. 1a is a horizontal cross-sectional view of a fire door according to the prior art. FIG. 1b is a vertical cross-sectional view of a fire door according to the prior art. FIG. 2 is a perspective view illustrating the overall appearance of a fire door according to an embodiment of the present invention. FIG. 3a is a horizontal cross-sectional view along A-A' of FIG. 1. Figure 3b is a vertical cross-sectional view along B-B' of Figure 1. FIG. 4a is an enlarged view of a fire door according to the first embodiment. FIG. 4b is an enlarged view of a fire door according to a modified example of the first embodiment. FIG. 5 is an enlarged view of a fire door according to a second embodiment. FIG. 6 is an enlarged view of a fire door according to a third embodiment. FIG. 7a is an enlarged view of a fire door according to the fourth embodiment. FIG. 7b is an enlarged view of a fire door according to the first variation of the fourth embodiment. FIG. 7c is an enlarged view of a fire door according to a second variation of the fourth embodiment. FIG. 8a is an enlarged view of a fire door according to the fifth embodiment. FIG. 8b is an enlarged view of a fire door according to a modified example of the fifth embodiment. FIG. 9 is an enlarged view of a fire door according to the 6th embodiment. FIG. 10 is an enlarged view of a fire door according to the 7th embodiment. FIG. 11 is an enlarged view of a fire door according to the 8th embodiment. FIG. 12 is a perspective view illustrating the overall appearance of a double-door type fire door according to an embodiment of the present invention. FIG. 13 is a horizontal cross-sectional view along C-C' of FIG. 11. The present invention is susceptible to various modifications and may have various embodiments, and specific embodiments will be described in detail with reference to the drawings. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Similar reference numerals have been used for similar components in the description of each drawing. Terms such as "first," "second," etc., may be used to describe various components, but said components shall not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and/or" includes a combination of a plurality of related description items or any one of a plurality of related description items. When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the co