JP6904894B2 - door - Google Patents

Description

The present invention relates to a door, and more particularly to a structure for attaching a post opening to a surface material of the door.

Some doors provided at entrances and exits, such as entrances, are provided with a mailing section for receiving mail and newspapers. For example, a flush door having a thin metal plate called a surface material on the indoor and outdoor surfaces is provided with a reinforcing support frame and a post opening to form a mailing section. The reinforcing support frame is a metal frame having a horizontally long rectangular cross section, having openings at both ends open, and having flanges around the openings. This reinforcing support frame is in contact with the back surface of each surface material via a flange in a state where the opening is matched with the insertion notch provided in the surface material. The post port has a plate shape having a horizontally long rectangular receiving port, and is provided at the receiving port so that the lid can be opened and closed. This post opening is attached to the surface of the surface material in a state where the receiving port is matched with the notch for inputting the surface material and the elastic sealing material is interposed on the back surface around the receiving port. Normally, the post opening is provided with screw screw portions at both end portions, and is fixed to the door by screwing mounting screws into the screw screw portions from the indoor side via a reinforcing support frame.

With the door configured as described above, the entrance is opened by opening the lid, so that mail and newspapers can be thrown into the room even when the entrance is closed. Moreover, an elastic sealing material is interposed between the surface material and the post opening. Therefore, for example, even if water such as rain travels along the surface of the surface material and reaches between the post opening and the surface material, there is no possibility that the water will infiltrate into the indoor side (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-178716

By the way, in a door as described above, if the mounting screws are excessively screwed when mounting the post opening, the elastic sealing members arranged around the mounting screws are in a crushed state, and the gaps between the mounting screws are convex. There is a risk of deformation so that In particular, when the screw threaded portions are provided only on both sides of the receiving port, the distance between the mounting screws becomes large, so that the above-mentioned problem may become remarkable. Moreover, when the post opening is deformed as described above, not only does it cause a problem in appearance quality, but also the amount of deformation of the elastic sealing material becomes too small in the deformed portion, which causes a situation in which external water infiltrates. There is also a risk.

In view of the above circumstances, it is an object of the present invention to provide a door capable of reliably preventing a situation in which a problem of appearance quality occurs due to deformation of a post opening and a situation in which water infiltrates.

In order to achieve the above object, the door according to the present invention has a surface material having a notch for insertion, an opening serving as an insertion passage, and a flange around the opening, and the door has a flange through the flange. A reinforcing support frame that comes into contact with the back surface of the surface material, a receiving port, and a screw threaded portion are provided, and the receiving port faces the insertion notch and is placed on the surface of the surface material via an elastic sealing material. A door provided with a post opening to be abutted, and a mounting screw is screwed into the screwed portion via the surface material and the flange, and between the surface material and the post opening. At least a part of the portion around the screwed portion is provided with a spacer harder than the elastic sealing material.

According to the present invention, the amount of deformation of the elastic sealing material is limited by the spacer around the screwed portion, so that the post opening is convex even when the mounting screw is excessively screwed. The situation of deformation is prevented. As a result, the amount of deformation of the elastic sealing material becomes appropriate around the entire circumference of the receiving port, and there is no possibility of causing a situation in which external water infiltrates.

Further, the present invention is characterized in that, in the door described above, the spacer is provided between the receiving port and the screwed portion.

According to the present invention, it is possible to sufficiently secure a region where the elastic sealing material can come into contact with the portion on the outer peripheral side of the spacer, so that it is possible to reliably prevent the ingress of water.

Further, the present invention is characterized in that, in the door described above, the spacer is provided on the back surface of the post opening.

According to the present invention, since the spacer is provided at the post opening, the number of parts when assembling the parts does not increase, and the assembling work does not become complicated.

Further, according to the present invention, in the door described above, an elastic member having heat insulating properties is disposed between the flange of the reinforcing support frame and the back surface of the surface material, and the surface material has the receiving port. A portion of the opening edge facing the flange is provided with an edge bending portion extending toward the flange and abutting the flange.

According to the present invention, the elastic member thermally blocks the surface material from the reinforcing support frame, which is advantageous in terms of heat insulating property. Moreover, since the amount of deformation of the elastic member is limited by the edge bending portion of the surface material, there is no possibility that the surface material has an appearance defect such as distortion even when the mounting screws are excessively screwed.

Further, the present invention is characterized in that, in the door described above, a heat-expandable member having fire resistance is disposed between the flange of the reinforcing support frame and the back surface of the surface material.

According to the present invention, since a heat-expandable member having fire resistance is arranged between the flange of the reinforcing support frame and the surface material, the reinforcing support member and the surface are exposed to a high temperature such as a fire. It is possible to prevent the spread of fire by preventing the formation of a gap between the material and the material, which is advantageous in terms of fire resistance. Moreover, since the heat-expandable member does not bend even when the mounting screws are excessively screwed, it is possible to prevent the surface material from being distorted or having an appearance defect without providing an edge bending portion on the surface material. can do.

According to the present invention, since the amount of deformation of the elastic sealing material is limited by the spacer, it is possible to prevent the post opening from being deformed so as to be convex even when the mounting screw is excessively screwed. As a result, the amount of deformation of the elastic sealing material is not excessive, and there is no possibility that external water will infiltrate.

It is a figure which looked at the door which is the embodiment of this invention from the outdoor side. It is a main part exploded perspective view which conceptually shows the structure of the door shown in FIG. It is a main part disassembled vertical sectional view which shows the structure of the door shown in FIG. The post opening applied to the door shown in FIG. 1 is shown. FIG. 1A is a rear view showing the removed lid body, and FIG. 1B is a rear view showing the state where the lid body is attached. The main part of the door shown in FIG. 1 is enlarged and shown, (a) is an exploded cross-sectional view, and (b) is a cross-sectional view of an assembled state. It is sectional drawing of the main part of the door which is the modification 1 of this invention. It is sectional drawing of the main part of the door which is the modification 2 of this invention.

Hereinafter, preferred embodiments of the door according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows a door according to an embodiment of the present invention. The door illustrated here is provided at the entrance in an apartment or the like. As shown in FIGS. 2 and 3, in the present embodiment, in particular, the surface materials 1 and 2 made of thin metal plates are provided on the surface on the outdoor side and the surface on the indoor side, respectively, and the surface materials 1 and 1 are provided. An example shows a heat insulating type flush door configured by providing a core material 3 having heat insulating properties between the two.

The door is provided with a mailing section 10 for receiving mail and newspapers. The mailing section 10 is formed at a portion slightly below 1/2 of the height of the door and is substantially centered on the left and right sides, and includes a reinforcing support frame 20, a post opening 30, and an indoor cover 40.

The reinforcing support frame 20 is a rectangular tubular member having an upper wall portion 21, a lower wall portion 22, and left and right vertical wall portions 23, and is formed of a steel material. The upper wall portion 21, the lower wall portion 22, and the left and right vertical wall portions 23 each form a rectangular plate shape, and the cross section is a horizontally long rectangular shape between them, and the input passage (opening) 24 with both ends open. Consists of. The left and right vertical wall portions 23 extend from both ends of the upper wall portion 21 so as to be substantially parallel to each other. On the other hand, the lower wall portion 22 is provided between the left and right vertical wall portions 23 in a state of being inclined with respect to the upper wall portion 21, and the mutual distance from the upper wall portion 21 is gradually increased from one to the other. It is increasing. As a result, the input passage 24 surrounded by the upper wall portion 21, the lower wall portion 22, and the left and right vertical wall portions 23 has a minimum opening area at one end and a maximum opening area at the other end. ing.

As is clear from the figure, the upper wall portion 21, the lower wall portion 22, and the left and right vertical wall portions 23 are provided with flanges 25 at both ends of the input passage 24, respectively. The flange 25 has a flat plate shape that protrudes toward the periphery of the input passage 24, and the flange 25 provided at one end of the input passage 24 is located on the same plane as each other, and the other of the input passage 24. Those provided at the ends are located on the same plane as each other. Elastic members 26 are attached to the respective surfaces of the flanges 25. The elastic member 26 is formed in a strip shape from a material having heat insulating properties, and is provided so as to surround the periphery of the input passage 24. Further, the flanges 25 provided on the left and right vertical wall portions 23 are formed with a frame-side boss insertion hole 25a and a frame-side screw insertion hole 25b. The frame-side boss insertion hole 25a is provided in the flange 25 at the end where the opening area of the input passage 24 is minimized, while the frame-side screw insertion hole 25b is provided in the flange 25 at the end where the opening area is maximum. There is. The frame-side boss insertion hole 25a and the frame-side screw insertion hole 25b are circular openings provided at positions on the same axis. The frame-side boss insertion hole 25a is configured to have an inner diameter larger than that of the frame-side screw insertion hole 25b.

The post port 30 is a metal plate-shaped member having a horizontally long rectangular receiving port 31. The post port 30 is provided on the end side where the opening area is the smallest with respect to the input passage 24 provided in the reinforcing support frame 20, the receiving port 31 communicates with the input passage 24, and the flange 25 has four circumferences. It is configured to be large enough to cover at the same time. As shown in FIGS. 3 and 4, bosses (screw-screwed portions) 32 for screwing are projected on the back surfaces of the post opening 30 on both sides of the reception port 31. The boss 32 has a columnar shape having the same outer diameter as each other and extends so as to be substantially perpendicular to the post opening 30, and has a screw hole 32a on the extending end surface. These bosses 32 are provided at positions where they can be inserted into the frame-side boss insertion holes 25a when the post openings 30 are arranged so as to cover the input passage 24 so as to face the ends of the reinforcing support frame 20.

An elastic sealing material 33 is disposed on the back surface of the post opening 30, and a lid 34 is provided so as to cover the receiving port 31 from the back surface. The elastic sealing material 33 is formed into a mat shape by using an elastic material having watertightness, and is arranged on the back surface of the post opening 30 in almost the entire area except for the receiving port 31 and the two bosses 32. The lid 34 rotates with the upper edge as a fulcrum by a hinge mechanism formed between the upper edge and the back surface of the post opening 30, and opens and closes the receiving port 31. The lid body 34 is in a state of being urged by a torsion coil spring 34a so as to always close the receiving port 31. If the lid 34 is pressed against the urging force of the torsion coil spring 34a, the receiving port 31 can be opened. When the pressing force is removed, the lid 34 returns to the position where the receiving port 31 is closed again by the urging force of the torsion coil spring 34a.

Further, the post opening 30 is provided with spacers 36 at positions on the back surface between the boss 32 and the receiving port 31, respectively. The spacer 36 is a block-shaped member formed of a resin that is harder than the elastic sealing material 33, for example, EPDM (ethylene propylene diene rubber), and is linearly arranged along the opening edge of the receiving port 31. .. The spacer 36 is configured to have a plate thickness substantially the same as the plate thickness when the elastic sealing material 33 is pressed against the surface material 1 and deformed to a state of exhibiting desired watertightness.

The indoor side cover 40 is a metal plate-shaped member having a horizontally long rectangular outlet 41. The indoor side cover 40 is provided on the end side where the opening area is maximum with respect to the input passage 24 provided in the reinforcing support frame 20, and the outlet 41 communicates with the input passage 24 and has four round flanges. It is configured to be large enough to cover 25 at the same time. A cover-side screw insertion hole 42 is provided at a portion of the indoor side cover 40 corresponding to the frame-side screw insertion hole 25b of the reinforcing support frame 20.

In order to provide the mailing portion 10 on the door by using the reinforcing support frame 20, the post opening 30, and the indoor side cover 40 having the above configuration, as shown in FIGS. 2, 3 and 5, the outdoor surface material 1 A notch 1a for loading is formed in, and a notch 2a for taking out is formed in the surface material 2 on the indoor side. Further, the outdoor surface material 1 is formed with a door-side boss insertion hole 1b through which the boss 32 of the post opening 30 can be inserted into the portions on both sides of the insertion notch 1a, and the indoor surface material 2 is formed. Form door-side screw insertion holes 2b at portions on both sides of the take-out notch 2a. Further, on the outdoor surface material 1, edge bending portions 1c are formed on both side edges of the charging notch 1a. The edge bending portion 1c is formed by bending the surface material 1 toward the inside of the room. The edge bending portion 1c is set so that the protruding dimension of the surface material 1 from the back surface is slightly smaller than the plate thickness of the elastic member 26 provided on the flange 25 of the reinforcing support frame 20.

Next, a reinforcing support frame 20 is arranged between the surface materials 1 and 2 in a state where the charging passage 24 is matched with the charging notch 1a and the taking-out notch 2a, and the reinforcing support frame 20 is arranged on each flange 25 via the elastic member 26. The back surfaces of the surface materials 1 and 2 are brought into contact with each other. In this state, the door-side boss insertion hole 1b provided in the outdoor surface material 1 and the frame-side boss insertion hole 25a provided in the reinforcing support frame 20 are arranged on the same axis, and further, on the indoor side. The door-side screw insertion hole 2b provided in the surface material 2 and the frame-side screw insertion hole 25b provided in the reinforcing support frame 20 are arranged on the same axis.

From this state, the post opening 30 is arranged on the outdoor surface material 1 and the indoor side cover 40 is arranged on the indoor surface material 2. At this time, the boss 32 of the post opening 30 is inserted into the frame-side boss insertion hole 25a of the reinforcing support frame 20 via the door-side boss insertion hole 1b of the surface material 1. Therefore, if the mounting screw 4 is inserted through the cover-side screw insertion hole 42 of the indoor side cover 40 and the door-side screw insertion hole 2b of the surface material 2, the mounting screw is inserted through the frame-side screw insertion hole 25b of the flange 25. 4 can be screwed into the screw hole 32a of the boss 32, and the post opening 30 can be attached to the surface material 1 on the outdoor side.

At this time, even if the mounting screw 4 is excessively screwed, the amount of deformation of the elastic sealing material 33 is limited by the spacer 36, and the elastic sealing material 33 arranged around the boss 32 may be crushed. do not have. Therefore, there is no possibility that the two bosses 32 are deformed so as to be convex between each other, that is, the central portion of the post opening 30, and the elastic sealing material 33 exhibits a desired watertightness over the entire circumference. , There is no risk of outside water entering.

Further, since the elastic member 26 having a heat insulating property is arranged on the flange 25 of the reinforcing support frame 20, the elastic member 26 thermally shields the surface materials 1 and 2 from the reinforcing support frame 20. It is advantageous in terms of heat insulation. Moreover, since the edge bending portions 1c are provided on both side edges of the charging notch 1a in the surface material 1, the edge bending portions 1c abut on the flange 25 of the reinforcing support frame 20 to provide elasticity to the flange 25. The member 26 is not excessively elastically deformed. As a result, the surface material 1 is not likely to be distorted so that the circumference of the charging notch 1a is close to the reinforcing support frame 20, and the appearance is not deteriorated.

As is clear from the figure, this door is provided with a cosmetic molding 50. The decorative molding 50 has the same thickness as the post opening 30, and is provided to decorate the door. The edge of the cosmetic molding 50 is simply in contact with the post opening 30. However, according to this door, even when the mounting screw 4 is excessively screwed, the post opening 30 is not deformed so as to be convex, so that there is no possibility that the end face of the decorative molding 50 is exposed to the outside.

As shown in FIGS. 2 and 3, the lower edge portion of the indoor side cover 40 is attached to the door by the rivet 5. Further, a sheet material 60 is further provided on the surface of the indoor side cover 40 facing the room. The sheet material 60 is a thin plate-like material that has elasticity such as rubber and can secure airtightness between the sheet material 60 and the indoor side cover 40, and the upper edge portion is attached to the door via the holding material 61. .. When the sheet material 60 is in a normal state, it is in close contact with the indoor side cover 40 so as to prevent the outside atmosphere and water from entering the indoor side through the receiving port 31 and the input passage 24 of the post port 30. Works for. On the other hand, when mail or newspaper is thrown in, it can be appropriately deformed and accepted indoors.

As described above, according to the door shown in this embodiment, the post opening 30 can be attached to the door by screwing two mounting screws 4, so that the work can be easily performed. It becomes. Moreover, even if the mounting screw 4 is excessively screwed, the post opening 30 is not deformed or the surface material 1 is not distorted, which causes a problem in appearance quality or causes a situation in which external water infiltrates. There is no fear. Further, the operator does not need to specially manage the torque when screwing the mounting screw 4, and the work can be facilitated from this aspect as well.

In the above-described embodiment, the elastic member 26 having heat insulating properties is arranged on the flange 25 of the reinforcing support frame 20, but the present invention is not necessarily limited to this. For example, in the first modification shown in FIG. 6, the heat-expandable member 70 is arranged on the flange 25 instead of the elastic member 26. The heat-expandable member 70 is a non-flammable or flame-retardant refractory member that expands due to heat, and for example, a graphite-containing foaming material having heat expandability can be applied. Also in this modification 1, the heat-expandable member 70 thermally blocks the surface material 1 from the reinforcing support frame 20, which is advantageous in terms of heat insulating properties. Moreover, when exposed to a high temperature such as a fire, it is possible to prevent a gap between the reinforcing support frame 20 and the surface material 1 and suppress the spread of fire, which is advantageous in terms of fire resistance. Further, even when the mounting screw 4 is excessively screwed, the thermally expandable member 70 is not deformed. Therefore, even if the surface material 1 is not provided with the edge bending portion 1c as in the embodiment, there is no possibility that the surface material 1 will have an appearance defect such as distortion.

Further, in the above-described embodiment, since the core material 3 having heat insulating properties is provided between the surface materials 1 and 2, it is advantageous in terms of heat insulating properties. However, the present invention is not necessarily limited to this, and the door may be configured by omitting the core material 3 as in the modification 2 shown in FIG. 7. In this modification 2, since it is not necessary to provide the elastic member 26 or the heat-expandable member 70 on the flange 25 of the reinforcing support frame 20, the surface material 1 is distorted even when the mounting screws 4 are excessively screwed. There is no risk of causing a situation. The same reference numerals are given to the same configurations as those in the first and second modifications.

Further, in the above-described embodiment, the spacer 36 is provided on the back surface of the post opening 30 between the boss 32 and the receiving port 31, but the spacer 36 is provided around the boss 32 between the boss 32 and the surface material 1. If intervened, the same effect can be obtained even if the spacer 36 is provided in other parts. In this case, it is not always necessary to provide the spacer 36 in the post opening 30, and the spacer 36 may be provided in the surface material 1. Further, the shape of the spacer 36 is not limited to that of the embodiment. Further, although a screw-threaded portion having a cylindrical boss 32 having a screw hole 32a on the end surface is illustrated, it is sufficient that the screw-threaded portion simply has a screw hole.

In the above-described embodiment, since the screw threaded portions 32 are provided only on both sides of the receiving port 31, the mounting work can be easily performed. Not limited. For example, the screw screw portions may be provided at a portion other than both sides of the receiving port 31, or may be provided at three or more. Further, the shape of the receiving port 31 does not have to be a horizontally long rectangular shape, and other shapes may be used.

1,2 Surface material, 1a Insertion notch, 1c Edge bending part, 4 Mounting screw, 10 Mailing part, 20 Reinforcing support frame, 24 Input passage, 25 Flange, 26 Elastic member, 30 Post port, 31 Reception port, 32 Boss , 33 Elastic sealant, 36 spacer, 70 thermally expandable member

Claims (5)

A surface material with a notch for input and
A reinforcing support frame having an opening serving as an input passage, a flange around the opening, and abutting against the back surface of the surface material via the flange.
A door provided with a receiving port and a screw threaded portion, and having a post opening that is brought into contact with the surface of the surface material via an elastic sealing material with the receiving port facing the insertion notch. ,
A mounting screw is screwed into the screwed portion via the surface material and the flange.
A door characterized in that a spacer harder than the elastic sealing material is provided at least a part of a portion between the surface material and the post opening around the screwed portion. The door according to claim 1, wherein the spacer is provided between the receiving port and the screwed portion. The door according to claim 1 or 2, wherein the spacer is provided on the back surface of the post opening. An elastic member having heat insulating properties is arranged between the flange of the reinforcing support frame and the back surface of the surface material.
The surface material is characterized in that an edge bending portion extending toward the flange and abutting on the flange is provided at a portion of the opening edge of the receiving port facing the flange. The door according to 1. The door according to claim 1, wherein a heat-expandable member having fire resistance is disposed between the flange of the reinforcing support frame and the back surface of the surface material.

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