JP6654930B2 - Doors and fittings - Google Patents

Description

  The present invention relates to a door body and a fitting, and more particularly to a fire prevention structure of a door body provided with a decorative material on a surface of a door body.

  2. Description of the Related Art As a fitting such as an entrance door, there is provided a fitting in which a surface of a door body is covered with a decorative material. The door body is configured such that the front and back surfaces of the aggregate having a four-frame structure are respectively covered with a surface material made of a thin metal plate. A heat insulating material such as urethane foam is provided between the surface materials. The decorative material is, for example, an extruded shape formed of an aluminum alloy. The surface of the decorative material is subjected to three-dimensional shaping such as unevenness or decoration with a resin film. According to this type of fittings, the shape and decoration of the decorative material appear on the surface of the door main body, and the appearance quality of the door body can be improved (for example, see Patent Document 1).

JP 2003-138855 A

  The decorative material applied to this type of fitting has an exterior surface material portion exposed to the outside, and a contact fin protruding from the exterior surface material portion, and is provided on the surface of the surface material through the contact fin portion. It is configured to abut. According to such a decorative material, by changing the protrusion size of the contact fin portion, the protrusion size from the surface of the surface material can be changed. Therefore, for example, even when the decorative material is provided so that the protruding dimension from the surface of the surface material becomes large, it is not necessary to increase the thickness of the exterior surface material part, and the molding of the decorative material can be facilitated and the door Body manufacturing costs can be reduced.

  However, considering the fire protection of the door, it is not always preferable. That is, when attaching the handle to the door body, it is necessary to form a handle attachment hole in the decorative material and the surface material. If the door body is not provided with a cosmetic material, the handle mounting portion of the surface material will be closed by the handle mounting portion when the handle is mounted, and there is no problem. On the other hand, when the handle is mounted via the cosmetic material, the handle mounting hole of the cosmetic material can be closed by the handle mounting portion, but the handle mounting hole of the surface material remains open. As a result, for example, when the indoor side of the door body is exposed to a high temperature state in the event of a fire, the flammable gas or flame generated from the heat insulating material of the door body may pass through the handle mounting hole and reach the outside of the door. is there.

  Such a problem can be solved by attaching a handle so as to penetrate the cosmetic material. In other words, if a through hole that allows the handle mounting portion to pass through the cosmetic material is formed, it becomes possible to close the handle mounting hole of the surface material by the handle mounting portion, and when the indoor side of the door body is exposed to a high temperature state. In addition, it is possible to prevent a situation in which a combustible gas or a flame penetrates outside the room. However, when the handle is attached as described above, the through-hole of the decorative material is exposed to the outside, and the initial purpose of improving the appearance quality is impaired.

  The present invention has been made in view of the above circumstances, and has as its object to provide a door body and a fitting that can improve fire resistance without deteriorating appearance quality.

In order to achieve the above object, a door body according to the present invention is a vertically long handle having a decorative material for covering a finding surface serving as an outdoor side of a surface material constituting a door body, and handle attachment portions at both upper and lower ends. A door body having a handle attached to the door body via handle attachment holes provided in each of the surface material and the decorative material in a state where the handle mounting portion is in contact with the surface of the decorative material. The cosmetic material has an abutment fin projecting toward the surface material and continuing vertically, and is attached to the surface material via a bent protruding end of the abutment fin, and the handle mounting The contact fins are respectively disposed on the left and right sides of the hole, and between the surface material and the decorative material, the portion above the handle mounting hole and below the handle mounting hole. Department The heat-expandable member is disposed only in the portion extending from one contact fin to the other contact fin, and the periphery of the handle mounting hole is heated up and down respectively. It is characterized by being surrounded by an inflatable member and left and right contact fins.

  According to the present invention, for example, when the door is exposed to a high temperature state at the time of a fire, the gap between the surface material and the decorative material is closed at the edge of the handle mounting hole by the expanded thermal expansion member. As a result, there is no possibility that flammable gas or flame generated from the inside of the door main body passes through the handle mounting hole and reaches the outside of the door.

  According to the present invention, when the contact fins of the decorative material are present on both sides of the handle mounting hole, the surface material and the decorative material can also be provided by disposing the thermal expansion member only between the contact fins. The gap between them can be closed.

  Further, the invention is characterized in that in the above-mentioned door body, the thermally expandable member is attached to a surface of the surface material.

  According to the present invention, the thermally expandable member can be easily and accurately positioned with respect to the handle mounting hole of the surface material to be closed, and the flammable gas or the flame penetrates due to the displacement between the two. There is no danger of causing a situation.

  Further, a fitting according to the present invention includes any one of the above-described doors, and a frame that supports the door so as to be openable and closable in a state where the decorative material is on the outdoor side.

  According to the present invention, for example, when the door is exposed to a high temperature state at the time of a fire, the gap between the surface material and the decorative material is closed at the edge of the handle mounting hole by the expanded thermal expansion member. As a result, there is no possibility that flammable gas or flame generated from the inside of the door main body passes through the handle mounting hole and reaches the outside of the door.

  According to the present invention, for example, when the door body is exposed to a high temperature state in the event of a fire, the gap between the surface material and the decorative material is closed at the edge of the handle mounting hole by the expanded thermally expandable member. As a result, there is no possibility that flammable gas or flame generated from the inside of the door main body passes through the handle mounting hole and reaches the outside of the door. As a result, it is possible to improve the fire resistance without deteriorating the appearance quality.

FIG. 1 is a view of a fitting to which a door body according to a first embodiment of the present invention is applied, as viewed from an outdoor side. FIG. 2 is a longitudinal sectional view of the fitting shown in FIG. FIG. 3 is a cross-sectional view of the fitting shown in FIG. FIG. 4 is an enlarged cross-sectional view showing a main part of the fitting shown in FIG. FIG. 5 is an enlarged longitudinal sectional view of a main part of the door of the fitting shown in FIG. 1. FIG. 6 is an exploded longitudinal sectional view showing a main part of the fitting shown in FIG. FIG. 7 is an exploded perspective view of a main part of a door body applied to the fitting shown in FIG. 1. 8 is an exploded view of the door of the fitting shown in FIG. 1, wherein (a) is an enlarged view of a main part of a surface material, and (b) is an enlarged view of a main part of a decorative material. FIG. 9 is an enlarged view of a main part of the fitting shown in FIG. 1 as viewed from the outdoor side. FIG. 10 is a diagram of a fitting to which the door according to the second embodiment of the present invention is applied, as viewed from the outdoor side. FIG. 11 is an enlarged cross-sectional view of a main part of the fitting shown in FIG. 10. FIG. 12 is an exploded perspective view of a main part of a door body applied to the fitting shown in FIG. FIG. 13 is an enlarged view of a main part of the fitting shown in FIG. 10 as viewed from the outdoor side.

  Hereinafter, preferred embodiments of a door and a fitting according to the present invention will be described in detail with reference to the accompanying drawings. In the following, for the sake of convenience, description will be made using the terms prospect direction and finding direction as appropriate. The expected direction is a direction along the depth of the fitting as shown by an arrow A in FIGS. 2 and 3. A plane along the prospective direction may be referred to as a prospective plane. In addition, the finding direction is a direction along the vertical direction orthogonal to the prospective direction in the case of a member along a horizontal direction such as an upper frame or a lower frame, and a member along the vertical direction such as a vertical frame, This is a direction along the horizontal direction orthogonal to the expected direction. A plane along the finding direction may be referred to as a finding surface.

(Embodiment 1)
1 to 4 show a fitting to which a door according to a first embodiment of the present invention is applied. The fittings exemplified here are used at the entrance of a house, and include a frame 10 and a door 20 supported on the frame 10 via a hinge 1 so as to be openable and closable. The frame body 10 is formed in a rectangular shape by forming an upper frame 11, a lower frame 12, and left and right vertical frames 13 into a four-frame structure. Each of the frames 11, 12, and 13 constituting the frame body 10 is an extruded member formed of a metal such as an aluminum alloy and has a substantially uniform cross-sectional shape over the entire length.

  The door body 20 includes a door body 212 configured by arranging a surface material 22 on each of the front and back surfaces of an aggregate 21 having a four-round frame, and a decorative material 23 attached to a finding surface of the door body 212 facing the outside. It is a thing. The aggregate 21 is formed of a metal such as steel, and is formed in a frame shape by connecting its respective ends to each other. The surface member 22 is a rectangular thin plate-shaped member formed of metal such as steel, and has four edges bent at substantially right angles in the same direction. Each of the surface members 22 is disposed on both the front and back surfaces of the aggregate 21 so that the bent portion covers the expected surface of the aggregate 21, and is joined to the aggregate 21 via the bent portion. A heat insulating material 24 is provided between the surface materials 22.

  The decorative material 23 is an extruded shape made of a metal such as an aluminum alloy, and an exterior surface material portion 23a and a plurality of contact fin portions 23b are integrally formed. The exterior surface material portion 23a is a flat plate-like portion that appears on the surface of the door body 20. The contact fin portion 23b is a thin plate-like portion protruding from both side edges and the back surface of the exterior surface material portion 23a. The protruding ends of the contact fins 23b are bent at substantially right angles, and extend so as to be substantially parallel to the exterior surface material portion 23a. The protrusion dimensions of the contact fins 23b are all the same. In the first embodiment, as shown in FIG. 1, a plurality of decorative materials 23 whose lengths extend along the left and right are vertically arranged side by side so as to cover all the finding surfaces facing the outside of the door body 212. . As a method of attaching the decorative material 23 to the door body 212, as shown in FIG. 5, for example, the bent protruding end of the contact fin 23b may be attached to the surface of the surface material 22 with the double-sided tape 25.

  The door body 20 is provided with an outdoor handle 30 on a finding surface facing the outdoor. As shown in FIG. 6, the outdoor handle 30 has handle attachment portions 31 and 32 at both upper and lower ends, respectively, and the handle attachment portions 31 and 32 are connected by a grip portion 33. Although not explicitly shown in the drawing, the gripping portion 33 is disposed so as to be operable and movable with respect to the handle mounting portions 31 and 32.

  The upper handle mounting portion 31 is provided with two upper and lower boss portions 34, and a link output portion 35 is provided between the boss portions 34. The lower handle mounting portion 32 is provided with two upper and lower boss portions. 34 are provided. The boss portion 34 is a columnar portion protruding from the seating surfaces 31a, 32a of the handle mounting portions 31, 32. Although not explicitly shown in the drawing, each boss portion 34 is provided with a screw hole so as to open to the front end surface. The link output unit 35 is an output unit configured to operate when the grip unit 33 is operated and moved with respect to the handle attachment units 31 and 32.

  The outdoor handle 30 having the above-described configuration includes a handle mounting hole 23A provided in the decorative material 23 and a handle provided in the surface material 22 in a state where the lock case 300 (see FIG. 3) is housed inside the door body 212. It is attached to the door body 20 via the attachment hole 22A. Specifically, as shown in FIGS. 7 to 9, upper handle mounting holes 22A1 and 23A1, boss insertion holes 22A2 and 23A2, and lower handle mounting holes 22A3 and 23A3 are formed in the surface material 22 and the decorative material 23. ing. As for the surface material 22, the upper handle mounting hole 22A1, the boss insertion hole 22A2, and the lower handle mounting hole 22A3 are formed not only on the outdoor side but also on the indoor side.

  The upper handle mounting holes 22 </ b> A <b> 1 and 23 </ b> A <b> 1 are openings through which two boss portions 34 and a link output portion 35 protruding from the upper handle mounting portion 31 are inserted. In the first embodiment, upper handle mounting holes 22A1 and 23A1 each having a vertically long rectangular shape and having semicircular cutouts 22A1a and 23A1a at upper and lower sides are provided. The semicircular notches 22A1a and 23A1a are portions through which the two bosses 34 are inserted, and a rectangular portion therebetween is a portion through which the link output unit 35 is inserted. The boss insertion holes 22A2 and 23A2 are circular notches through which the boss portions 34 protruding from above in the lower handle mounting portion 32 are inserted.

  The lower handle mounting holes 22A3 and 23A3 are openings through which a boss 34 protruding from the lower handle mounting portion 32 and a cable (not shown) are inserted. The cable (not shown) connects between the outdoor handle 30 and the lock case 300 (see FIG. 3). In the first embodiment, rectangular lower handle mounting holes 22A3 and 23A3 are provided. The upper handle mounting holes 22A1 and 23A1, the boss insertion holes 22A2 and 23A2, and the lower handle mounting holes 22A3 and 23A3 are all covered by the handle mounting portions 31 and 32 when the outdoor handle 30 is mounted. Position and dimensions are set. When the cosmetic material 23 is provided with the upper handle mounting hole 23A1 and the lower handle mounting hole 23A3, it is preferable to cut off the contact fin portion 23b of the corresponding portion in advance. Reference numerals 22A4 and 23A4 in the drawings are circular lock insertion holes for disposing a cylinder lock (not shown).

  Further, a heating foam material (thermally expandable member) 40 is attached to the surface member 22 disposed on the outdoor side at a portion surrounding the upper handle mounting hole 22A1, and the lower handle mounting hole 22A3 and the lower lock insertion are provided. A heated foam material 40 is attached to a portion surrounding the hole 22A4. The heating foam material 40 is a member made of a nonflammable or flame-retardant material that expands when the temperature rises, such as expanded graphite. In the first embodiment, the heating foam material 40 formed in a band shape is adhered in a rectangular shape, so that the upper handle mounting hole 22A1 is surrounded without a gap, and the lower handle mounting hole 22A3 and the lower lock insertion hole 22A4 are completely closed. It surrounds. As the heating foam material 40, it is preferable to use a material which foams at a temperature before the heat insulating material 24 disposed inside the door main body 212 is melted and a combustible gas is generated.

  In order to attach the outdoor handle 30 to the above-described door body 20, as shown in FIG. 6, a cover plate is provided so as to cover the upper handle mounting hole 22A1 and the lower handle mounting hole 22A3 on the surface of the surface member 22 arranged indoors. 26 and 27 are provided, and a lock cover 41 is provided in the upper handle mounting hole 22A1. The cover plates 26 and 27 are metal thick plate members having an outer shape larger than the upper handle mounting hole 22A1 and the lower handle mounting hole 22A3, and bosses are respectively provided at portions corresponding to the boss portions 34 of the outdoor handle 30. It has screw insertion holes 26a and 27a smaller in diameter than the portion 34. Although not shown in the drawing, a sealing material is attached to the surfaces of the cover plates 26 and 27 facing the surface material 22.

  As shown in FIG. 7, the lock cover 41 is a metal box-shaped member having a peripheral wall 41b on each of four sides of a rectangular substrate 41a, and a heating foam material 42 is provided on the inner surface of the peripheral wall 41b. It is pasted. The substrate 41a is formed to have a size that can be accommodated in the upper handle mounting hole 22A1, and has a notch 41c through which the boss portion 34 and the link output portion 35 of the outdoor handle 30 pass. The peripheral wall portions 41b on both sides are provided with flange portions 41d that are bent in directions away from each other.

  In this state, the boss portion 34 of the outdoor handle 30 and the upper handle mounting holes 23A1 and 22A1, the boss insertion holes 23A2 and 22A2, and the lower handle mounting holes 23A3 and 22A3 of the decorative material 23 and the surface material 22 arranged outside the room, respectively. When the link output portion 35 is inserted and the mounting screws 36 are screwed into the respective boss portions 34 through the screw insertion holes 26a and 27a of the cover plates 26 and 27, the handle mounting portions 31 and 32 The outdoor handle 30 is attached to the door body 20 in a state in which the outdoor handle 30 abuts on the exterior surface material portion 23a. An indoor handle 50 is attached to the indoor side of the door body 212 via cover plates 26 and 27.

  Here, in the surface member 22 arranged on the indoor side, the upper handle mounting hole 22A1 and the lower handle mounting hole 22A3 are closed by the cover plates 26 and 27, respectively, and the boss insertion hole 22A2 is Is closed by the mounting screw 36 that is screwed into. The upper handle mounting hole 23A1 and the lower handle mounting hole 23A3 provided in the decorative material 23 are closed by the handle mounting portions 31, 32, and do not open to the outside. Furthermore, the lock insertion holes 22A4 and 23A4 are substantially closed because cylinder locks (not shown) are provided.

  On the other hand, in the case of the surface material 22 arranged on the outdoor side, a gap is formed between the exterior surface material portion 23a of the decorative material 23 and the surface material 22 by the contact fin portion 23b. , The upper handle mounting hole 22A1 and the lower handle mounting hole 22A3 remain open. Therefore, for example, when the indoor side of the door body 20 is exposed to a high temperature state in the event of a fire, the combustible gas or flame generated from the heat insulating material 24 of the door main body 212 causes the upper handle mounting hole 22A1 of the surface material 22 There is a possibility that it may pass through the lower handle mounting hole 22A3 and reach the outdoor side.

  However, according to this fitting, the heating foam material 40 is stuck to the portion surrounding the upper handle mounting hole 22A1 and the portion surrounding the lower handle mounting hole 22A3 in the surface material 22, respectively. Therefore, when the door body 20 is in a high temperature state, the foamed heating material 40 expands, so that the decorative material 23 and the surface material 22 are surrounded by the periphery of the upper handle mounting hole 22A1 and the periphery of the lower handle mounting hole 22A3. The gap will be closed. In other words, in the surface member 22 arranged on the outdoor side, the upper handle mounting hole 22A1 and the lower handle mounting hole 22A3 are closed by the expanded heating foam material 40 and the exterior surface material portion 23a of the decorative material 23. . Accordingly, there is no possibility that the combustible gas or the flame generated from the heat insulating material 24 of the door main body 212 may lead to the outside of the door, and the fire protection can be improved. In addition, since the handle mounting holes 23A provided in the decorative material 23 are closed by the handle mounting portions 31 and 32, there is no possibility that the appearance quality of the door body 20 is impaired.

  In the first embodiment described above, the heating foam material 40 is arranged continuously around the entire periphery of the handle mounting hole 22A. However, the present invention is not limited to this. The heating foam 40 may be intermittently provided as long as the heating foam 40 is surrounded.

(Embodiment 2)
FIGS. 10 and 11 show a fitting to which the door according to the second embodiment of the present invention is applied. The fittings exemplified here are used for the entrance of a house as in the first embodiment, and differ from the first embodiment in the arrangement of the decorative material with respect to the door body and the arrangement of the heated foam material. Hereinafter, the configuration different from the first embodiment will be described in detail, and the same configuration as the first embodiment will be denoted by the same reference numeral and detailed description thereof will be omitted.

  As shown in the figure, in the door body 120 according to the second embodiment, a plurality of decorative materials 23 whose lengths are vertically aligned are arranged side by side so as to cover all the exterior surfaces of the door body 212 facing the outside. I have to. As with the first embodiment, the decorative material 23 is an extruded shape made of a metal such as an aluminum alloy, and the exterior surface material portion 23a and the contact fin portion 23b are integrally formed.

  As shown in FIG. 12 and FIG. 13, the decorative material 23 disposed at the most door-end portion is provided with an upper handle mounting hole 22A1, a boss insertion hole 22A2, and a lower handle mounting hole 22A3 of the surface material 22 disposed on the outdoor side. Are attached to the door body 212 so as to be located between the contact fins 23b.

  In the surface member 22 arranged on the outdoor side, a heated foam material (thermal expansion property) is provided along a left and right direction at a portion above the upper lock insertion hole 22A4 and a portion below the upper handle mounting hole 22A1. The heating foam material 40 is adhered along the left and right directions to a portion above the lower lock insertion hole 22A4 and a portion below the lower handle mounting hole 22A3, respectively. . Each of the heating foam materials 40 is a member made of a nonflammable or flame-retardant material that expands when the temperature rises, such as expanded graphite. In the second embodiment, the heat-foaming material 40 formed in a belt shape is continuously adhered to a portion extending from one contact fin portion 23b to the other contact fin portion 23b. As the heating foam material 40, it is preferable to apply a material which foams at a temperature before the heat insulating material 24 disposed inside the door main body 212 is melted and a combustible gas is generated.

  In this fitting as well, in the case of the surface material 22 arranged on the outdoor side, a gap is formed between the exterior surface material portion 23a of the decorative material 23 and the surface material 22 by the contact fin portion 23b, so that the outdoor handle 30 is formed. , The upper handle mounting hole 22A1 and the lower handle mounting hole 22A3 remain open.

  However, according to the above-described fitting, the heating foam material 40 is attached to a portion above the upper lock insertion hole 22A4 and a portion below the upper handle mounting hole 22A1 between the contact fin portions 23b. In addition, a heating foam material 40 is attached along a left and right direction to a portion above the lower lock insertion hole 22A4 and a portion below the lower handle mounting hole 22A3. Therefore, when the indoor side of the door body 120 is in a high temperature state, the gap between the decorative material 23 and the surface material 22 above and below the upper handle mounting hole 22A1 is closed by expanding the heated foam material 40, and the lower part is closed. The gap between the decorative material 23 and the surface material 22 above and below the handle mounting hole 22A3 is closed. Contact fins 23b are provided on the left and right sides of the upper handle mounting hole 22A1 and on the left and right sides of the lower handle mounting hole 22A3 so as to close the gap between the decorative material 23 and the surface of the surface material 22 respectively. Thereby, in the surface material 22 arranged on the outdoor side, the upper handle mounting hole 22A1 and the lower handle mounting hole 22A3 are formed by the expanded heating foam material 40, the contact fin portion 23b of the decorative material 23, and the exterior surface material portion 23a. It will be in a closed state. Therefore, there is no possibility that flammable gas or flame generated from the heat insulating material 24 of the door main body 212 may lead to the outside of the door, and the fire resistance can be improved. Moreover, since the handle mounting holes 23A provided in the decorative material 23 are closed by the handle mounting portions 31 and 32, the appearance quality of the door body 120 is not likely to be impaired.

  In each of the first and second embodiments, the lock cover 41 provided with the heating foam material 42 is provided in the upper handle mounting hole 22A1. The upper handle mounting hole 22A1 of the surface material 22 is closed by the heated foam material 42 of 41, and it is possible to more reliably improve fire resistance. However, in the present invention, it is not always necessary to provide the lock cover 41.

  In the first and second embodiments described above, since the heating foam material 40 is attached to the surface of the surface member 22, the heating member 40 is heated to an accurate position with respect to the handle mounting holes 22A and 23A. Although the foam material 40 can be attached, the heated foam material 40 does not need to be attached to the surface material 22 and may be provided between the surface material 22 and the decorative material 23. The heating foam 40 may be attached.

  Reference Signs List 10 frame body, 20, 120 door body, 22 surface material, 22A, 23A handle mounting hole, 23 cosmetic material, 23a exterior surface material portion, 23b contact fin portion, 30 outdoor handle, 31, 32 handle mounting portion, 40 Heated foam, 212 door body

Claims (3)

A cosmetic material that covers a finding surface that is an outdoor side of a surface material constituting the door body, and a vertically long handle having a handle attachment portion at each of upper and lower ends are provided, and the handle attachment portion is provided on a surface of the cosmetic material. In a contact state, in a door body, a handle is attached to the door body via a handle attachment hole provided in each of the surface material and the decorative material,
The decorative material projects toward the surface material, and has a contact fin portion that is vertically continuous, and is attached to the surface material via a bent protruding end of the contact fin portion,
The contact fins are respectively arranged at the left and right sides of the handle mounting hole,
Between the surface material and the decorative material, a thermal expansion member is disposed only at a portion above the handle mounting hole and at a portion below the handle mounting hole,
The heat-expandable member is disposed at a portion extending from one contact fin portion to the other contact fin portion,
A door body, wherein a periphery of the handle mounting hole is surrounded by upper and lower thermally expandable members and left and right contact fins, respectively.   The door body according to claim 1, wherein the thermally expandable member is attached to a surface of the surface material.   3. A fitting comprising: the door body according to claim 1; and a frame body that supports the door body so that the door body can be opened and closed in a state where the decorative material is on the outdoor side.

Images