Building device

The fitting device enhances door airtightness and watertightness by using elastic members and a protruding piece to maintain seal integrity under high water pressure, addressing the inadequacies of conventional structures.

JP7706263B2Active Publication Date: 2025-07-11BUNKA SHUTTER CO LTD
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Patent Information

Application Number
JP2021087743
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-05-25
Publication Date
2025-07-11
Estimated Expiration
2041-05-25

AI Technical Summary

Technical Problem

Conventional door structures face insufficient watertightness and water-stopping performance when subjected to large water pressures, such as during floods.

Method used

A fitting device with a door body, rotating shaft, door butt side frame member, first and second elastic members, and a protruding piece portion that is sandwiched between the second elastic member and the door butt side frame member during closure, enhancing the airtightness and watertightness by surface contact and elastic deformation.

Benefits of technology

Improves airtightness and watertightness, particularly on the door bottom side, ensuring effective water-stopping performance even under high water pressure conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a joinery device capable of improving water tightness.SOLUTION: A joinery device includes: a door body 20; a rotation shaft for allowing the door body 20 to rotate to open / close at the door tail side of the door body 20; a door tail side frame member 11 arranged to face the door tail of the closed door body 20; a first elastic member 40 placed on the door tail side frame member 11; and a second elastic member 50 placed on the door tail of the door body 20. The first elastic member 40 is provided with a projecting piece that is sandwiched between the second elastic member 50 and the door tail side frame member 11 when the door body 20 is closed.SELECTED DRAWING: Figure 2
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Description

Technical Field

[0001] The present invention relates to a fitting device that rotates a door body to perform opening and closing operations.

Background Art

[0002] Conventionally, for this type of invention, as described in, for example, Patent Document 1, there is a door body, a rotating shaft provided on one side in the door thickness direction on the door butt side of the door body to open and close the door body, and a door butt side frame member provided so as to face the door butt portion of the door body in the closed state, and an airtight member provided on the other side with respect to the one side on the door butt side of the door body in the closed state, and there is a sealed and soundproof door provided with the above. According to this prior art, when the door body is fully closed, the door body is pressed against the airtight member, and the airtight member is elastically deformed, so that the gap between the door body and the door butt side frame member can be blocked, and airtightness and watertightness can be maintained.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, for example, when a large water pressure is applied to the outdoor side due to a flood or the like, in the above conventional structure, there is a risk that watertightness and water-stopping performance are insufficient.

Means for Solving the Problems

[0005] In view of such problems, the present invention has the following configuration. A door body, a rotating shaft that opens and closes the door body on the door butt side of the door body, a door butt side frame member provided so as to face the door butt portion of the door body in a closed state, a first elastic member provided on the door butt side frame member, and a second elastic member provided on the door butt portion of the door body, wherein the first elastic member is sandwiched in the looking direction between the second elastic member and the door butt side frame member when the door body performs a closing operation and is in surface contact with the second elastic member and the door bottom side frame member A fitting device, characterized in that a protruding piece portion is provided so as to be pinched

Advantages of the Invention

[0006] Since the present invention is configured as described above, the watertightness can be improved.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0008] In the present embodiment, the following features are disclosed. The first feature is a fitting device (see FIGS. 1 to 11) comprising a door body, a rotating shaft for opening and closing the door body on the door bottom side of the door body, a door bottom side frame member provided so as to face the door bottom portion of the closed door body, a first elastic member provided on the door bottom side frame member, and a second elastic member provided on the door bottom portion of the door body, wherein the first elastic member is provided with a protruding piece portion so as to be sandwiched between the second elastic member and the door bottom side frame member when the door body performs a closing operation.

[0009] As a second feature, the first elastic member has a pressed portion that is pressed in the expected direction and contracts by a portion on the door bottom side of the closing door body, and the protruding piece portion protrudes from the pressed portion (see FIG. 7).

[0010] As a third feature, the door bottom side frame member is provided with a groove portion so as to face the surface on the closing direction side of the closed door body, and the first elastic member is fitted in the groove portion (see FIGS. 2 and 3).

[0011] As a fourth feature, a pressing projection is provided on the door bottom side of the door body so as to be pressed against the first elastic member when the door body is closed (see FIGS. 9 and 10).

[0012] As a fifth feature, the second elastic member covers substantially the entire length of the bottom end portion of the door body in the door thickness direction (see FIGS. 2 and 3).

[0013] As a sixth feature, the second elastic member is formed of a closed-cell foam.

[0014] In addition, in the embodiments described later, the present invention also discloses an invention that only requires the following constituent elements. That is, this invention includes a door body, a rotating shaft that opens and closes the door body on the bottom end side of the door body, a bottom end side frame member provided so as to face the bottom end portion of the door body in the closed state, and a first elastic member provided on the bottom end side frame member. A pressing projection is provided on the bottom end side of the door body so as to be pressed against the first elastic member when the door body is closed (see FIGS. 9 and 10). According to this invention, when the door body is closed, the pressing projection is pressed against the first elastic member, and the watertightness can be further improved.

[0015] <First Embodiment> Next, a specific embodiment having the above features will be described in detail with reference to the drawings.

[0016] The fitting device 1 shown in FIG. 1 includes a frame body 10 formed in a rectangular frame shape from a plurality of frame members including a bottom end side frame member 11, a door body 20 that opens and closes an opening in the frame body, a hinge 30 that constitutes a rotating shaft for opening and closing the door body 20 on the bottom end side of the door body 20 in the closed state, a first elastic member 40 provided on the bottom end side frame member 11 of the frame body 10, and a second elastic member 50 provided on the bottom end portion of the door body 20.

[0017] The frame body 10 includes a bottom end side frame member 11 that faces the bottom end portion of the door body 20 in the closed state, a leading end side frame member 12 that faces the leading end portion of the door body 20, and upper and lower side frame members 13 and 14 that face the upper and lower end portions of the door body 20, respectively, and is configured in an integral rectangular frame shape with an opening in the center. This frame body 10 is fixedly and immovably attached to a building opening or the like.

[0018] The door butt side frame member 11 is a member that is continuously long in the vertical direction and is formed in a substantially frame shape in cross section as shown in FIG. 2. This door butt side frame member 11 has a door butt facing portion 11a that faces the door butt portion of the door body 20 in the fully closed state, and a groove portion 11b that faces the portion near the door butt on the closing direction side surface of the door body 20 in the fully closed state. The door butt side frame member 11 is formed in a substantially L-shaped cross section in the range from the door butt facing portion 11a to the groove portion 11b, and this L-shaped portion is fitted into the corner portion where the back surface and the door butt surface of the door body 20 in the fully closed state intersect (see FIG. 2(b)).

[0019] The door butt facing portion 11a is a flat surface that is rectangular in plan view and continuously faces the door butt surface of the door body 20 in the fully closed state in the vertical direction. One piece portion 31 of the hinge 30 is fixed to this door butt facing portion 11a by a fastening tool such as a screw or a bolt.

[0020] As shown in FIG. 2, the groove portion 11b is formed in a concave cross section composed of a surface that is continuous in the looking-in direction from the door butt facing portion 11a, a bottom surface that is bent in the finding direction from this portion, and a surface that protrudes from the bottom surface and has a space between it and the door butt facing portion 11a. This groove portion 11b has its opening facing the closing direction side surface of the door body 20 in the fully closed state and is continuous over the entire length of the door butt side frame member 11 in the vertical direction.

[0021] The door body 20 is configured in a rectangular plate shape in front view with a predetermined thickness. According to the illustrated example, a front plate 21 and a back plate 22 that are spaced apart in the thickness direction are fixed to a plurality of frame members 23 located therebetween. The end portion of the door body 20 on the door tip side is a flat surface that is rectangular in plan view and continuous over the entire length in the vertical direction.

[0022] The hinge 30 is formed by supporting a flat plate-shaped one piece portion 31 and a similar flat plate-shaped other piece portion 32 so as to freely rotate about a shaft portion 33, and may also be referred to as a hinge or the like. The hinge 30 in the illustrated example is a flag hinge with a well-known structure. This hinge 30 has a shaft portion 33 disposed on the front side between the door body 20 and the door sill side frame member 11. One piece portion 31 is fixed to the door sill facing portion 11a of the door sill side frame member 11, and the other piece portion 32 is fixed to the door sill surface of the door body 20.

[0023] The first elastic member 40 is a member that is elastically pressed against the door body 20 when it is fully closed and closes the gap between the frame body 10 and the door body 20. This first elastic member 40 includes a base portion 41 that fits into the groove portion 11b of the door sill side frame member 11, a pressed portion 42 connected to the door body opening direction side of the base portion 41, and a first protruding piece portion 43 and a second protruding piece portion 44 that protrude from the outer surface of the pressed portion 42. This first elastic member 40 is integrally formed from an elastic material such as an elastomer resin or synthetic rubber.

[0024] The base portion 41 is formed in a substantially rectangular cross-sectional shape having a hollow portion (see Fig. 7) and is continuous over the entire length of the door sill side frame member 11 in the vertical direction. On the outer surface of this base portion 41, a plurality of retaining pieces 41a that are elastically pressed against the inner surface of the groove portion 11b and serve as retaining means are provided at intervals in the prospective direction.

[0025] The pressed portion 42 is formed in a substantially cylindrical shape having a hollow portion and is continuous over the entire length of the door sill side frame member 11 in the vertical direction. This pressed portion 42 is pressed in the prospective direction by the door sill side portion of the back surface of the closing door body 20 and elastically contracts.

[0026] The first protruding piece portion 43 is a member that protrudes from the outer surface of the pressed portion 42 and is continuous in the vertical direction, and is pressed against the back surface of the door body 20 over the entire length in the vertical direction.

[0027] The second protruding piece portion 44 is a member that protrudes from the outer surface of the pressed portion 42 and is continuous over the entire length of the door sill side frame member 11 in the vertical direction, and is formed in a rectangular shape in plan view that is long in the vertical direction.

[0028] This second protruding piece portion 44 is in surface contact with the door-end facing portion 11a of the door-end side frame member 11 and one piece portion 31 of the hinge 30. Specifically, in the portion having the one piece portion 31 of the hinge 30 in the vertical direction, the second protruding piece portion 44 is in surface contact with the one piece portion 31 (see FIG. 3), and in other portions in the vertical direction, it is in surface contact with the door-end facing portion 11a (see FIG. 2).

[0029] When the door body 20 performs a closing operation, this second protruding piece portion 44 is sandwiched and compressed between the second elastic member 50 on the door body 20 side and the door-end facing portion 11a or the one piece portion 31 over the entire length of the door body 20 in the vertical direction. That is, in the portion having the one piece portion 31 of the hinge 30 in the vertical direction, the second protruding piece portion 44 is sandwiched between this one piece portion 31 and the second elastic member 50 (see FIG. 3), and in other portions in the vertical direction, it is sandwiched between the door-end facing portion 11a and the second elastic member 50 (see FIG. 2(b)).

[0030] The length of the second protruding piece portion 44 in the vertical direction is set to be at least longer than the length of the door body 20 in the vertical direction. Also, the dimension L of the second protruding piece portion 44 in the prospective direction is set so that the second protruding piece portion 44 overlaps the door-end facing portion 11a. According to the illustrated example, it is set to be 1 / 2 or more of the thickness dimension of the door body 20 (see FIG. 2(b)).

[0031] In the figure, reference numeral 49 is a spacer provided singly or plurally between the base portion 41 and the bottom surface of the groove portion 11b to make the protruding amount of the first elastic member 40 appropriate. This spacer 49 is integrally formed detachably with respect to the base portion 41, but it is also possible to use a separate member.

[0032] Also, the second elastic member 50 is formed in a long rectangular shape in plan view covering substantially the entire surface of the door-end portion of the door body 20, and covers the door-end portion of the door body 20 over substantially the entire length in the door thickness direction. This second elastic member 50 is formed of a foam of closed cells made of a synthetic resin having elasticity as a particularly good water-tightness mode. In this embodiment, ethylene propylene diene rubber (EPDM) is used as the synthetic resin.

[0033] In the portion where the second elastic member 50 has the other piece 32 of the hinge 30 in the vertical direction, it is adhered so as to be in surface contact with the other piece 32, and in the other portions in the vertical direction, it is adhered so as to be in surface contact with the butt portion of the door body 20 (see Fig. 5).

[0034] Further, the door tip side frame member 12 is formed symmetrically with the door butt side frame member 11 in the left - right direction. An elastic member 60 is fitted over the entire length in the vertical direction in the groove portion 12a of the door tip side frame member 12. The elastic member 60 is obtained by omitting the first protruding piece 43 and the second protruding piece 44 from the first elastic member 40. As another example, it is possible to replace this elastic member 60 with the above - mentioned first elastic member 40 with the left and right reversed.

[0035] Also, elastic members (not shown) are provided over substantially the entire length in the finding direction on the upper side frame member 13 and the lower side frame member 14, respectively, in substantially the same manner as those on the door tip side.

[0036] Next, the characteristic effects of the fitting device 1 having the above configuration will be described in detail. First, in the open state of the door body 20, as shown in Figs. 2(a) and 3, the first elastic member 40 and the second elastic member 50 are in an initial state where they are not compressed and deformed.

[0037] In the fully - closed state where the door body 20 substantially closes the opening in the frame body 10, the second elastic member 50 and the second protruding piece 44 are sandwiched in a state of overlapping between the butt portion of the door body 20 and the butt - facing portion 11a of the door butt side frame member 11.

[0038] Specifically, in the range of the dimension L in Fig. 2(b) closer to the door - closing direction in the door - thickness direction, between the butt portion of the door body 20 and the butt - facing portion 11a, between the other piece 32 of the hinge 30 and the butt - facing portion 11a, between the butt portion of the door body 20 and one piece 31 of the hinge 30, etc., the second elastic member 50 and the second protruding piece 44 are sandwiched in a state of overlapping. Also, closer to the door body opening direction in the door thickness direction, only the second elastic member 50 is sandwiched between each of the spaces (see Fig. 2(b)).

[0039] Also, in this fully closed state, the corner portion where the back surface of the door body 20 intersects the door bottom surface is pressed against the pressed portion 42 of the first elastic member 40, and the pressed portion 42 elastically contracts. The back surface of the door body 20 is pressed against the first protruding piece portion 43 of the first elastic member 40, and the first protruding piece portion 43 elastically bends (see Fig. 2(b)).

[0040] On the other hand, on the door tip side of the door body 20, the back surface of the door body 20 is pressed against the elastic member 60 (see Fig. 6). Further, on the upper and lower sides of the door body 20, the back surface of the door body 20 is pressed against an elastic member (not shown).

[0041] Therefore, according to the fitting device 1 having the above configuration, the airtightness and watertightness around the door body 20 can be improved, and in particular, the decrease in airtightness and watertightness on the door bottom side can be prevented. Therefore, according to the fitting device 1, for example, even when a large water pressure is applied to the outdoor side due to a flood or the like, good water-stopping performance can be obtained.

[0042] <Second Embodiment> The following embodiment is a modification of the above fitting device 1. Therefore, mainly the modified part will be described in detail, and duplicate explanations for substantially the same configuration will be omitted.

[0043] Figs. 9 and 10 show the waterproof structure on the door bottom side of a fitting device 2 which is another example of the present invention. The fitting device 2 is obtained by providing a pressing projection 25 on the door body 20 of the fitting device 1 and replacing the hinge 30 with a hinge 30'.

[0044] Specifically, a pressing projection 25 is provided on the door bottom side of the door body 20 so as to be pressed against the pressed portion 42 of the first elastic member 40 when the door body 20 is closed. The pressing projection 25 is a ridge that protrudes in the door closing direction and is continuous in the vertical direction. According to the illustrated example, it is formed in a substantially mountain-shaped cross section.

[0045] The hinge 30' is a two-axis hinge. This hinge 30' includes one support portion 31' fixed to the finding surface 11c of the door end side frame member 11, the other support portion 32' fixed to the door end side on the surface of the door body 20, and a link member 33' pivotally supported by the support portions 31' and 32' at one end side and the other end side, respectively, and supports the door body 20 so as to be openable and closable and linearly movable (rockable) in the prospective direction. Note that this hinge 30' can be configured to have three or more axes as long as it functions similarly.

[0046] According to the fitting device 2 having the above configuration, when the door body 20 is substantially fully closed, the second elastic member 50 and the second protruding piece portion 44 are sandwiched between the door end portion of the door body 20 and the door end facing portion 11a of the frame body 10, and the pressing protrusion 25 is pressed against the pressed portion 42.

[0047] After that, when the door body 20 is pushed into the prospective direction, the pressing protrusion 25 is further pressed against the pressed portion 42, and the peripheral wall portion of the pressed portion 42 is elastically recessed, and the inner surface of the peripheral wall portion abuts against the base portion 41. Therefore, it is possible to prevent the door body 20 from being pushed in too much and damaging the airtightness and watertightness due to the elasticity of the pressed portion 42.

[0048] <Other Modification Examples> In the above embodiment, the waterproof structure described above is configured for a single-opening fitting device. However, as another example of the present invention, it is also possible to apply the above waterproof structure to a double-opening fitting device. In this case, for example, the above waterproof structure including the first elastic member 40 and the second elastic member 50 may be configured on the door end sides of the parent door 20' and the child door 20" constituting the double-opening fitting, respectively. In this other example, the mating portion of the parent door 20' and the child door 20" is configured, for example, as shown in FIG. 8. The sub-door 20" has, on its door tip side, a groove portion 24' that overlaps the back surface of the main door 20' from the closing direction side. An elastic member 60 is fitted into this groove portion 24' so as to be pressed against the back surface of the main door 20'.

[0049] Also, in the above embodiment, the pressed portion 42 of the first elastic member 40 is configured to be hollow, but this pressed portion 42 can also be configured to be solid with appropriate elasticity.

[0050] Also, in the above embodiment, as a particularly preferred embodiment, the first elastic member 40 is formed from a foamed resin with closed cells, but as another example, this first elastic member 40 can also be formed from a foamed resin with open cells.

[0051] Also, in the above first embodiment, a flag hinge is used as the hinge 30, and in the above second embodiment, a biaxial hinge is used, but as other examples of these hinges, a butt hinge, a pivot hinge, a hinge having three or more axes, etc. may be used.

[0052] As a particularly preferred other example, it is possible to use a hinge set 30" with multiple axes in place of the above hinge (see FIG. 11). This hinge set 30" includes a vertical axis hinge 30a" in which a rotating member 32" that rotates around a vertical rotation axis is provided on a base member 31" (according to the illustrated example, a flag hinge), and a horizontal axis hinge 30b" attached to the rotating member 32". The horizontal axis hinge 30b" includes a first shaft member 33" that constitutes a horizontal rotation axis, a link member 34" whose one end side is rotatably supported with respect to the first shaft member 33" and whose other end side hangs down, and a second shaft member 35" that is rotatably supported on the other end side of the link member 34" so as to be aligned below the first shaft member 33". The first shaft member 33" has a connection base 33b" that can be connected to the rotating member 32", and the second shaft member 35" has a fixing portion 35b" that can be fixed to the door body 20. According to the fitting device using this hinge set 30", it is possible to suppress the wobbling of the fitting in the thickness direction as in the case of using a conventional biaxial hinge by the own weight of the door body 20 or the like.

[0053] Although the display in FIG. 11 is omitted, between the side surface of the door end of the door body 20 and the door end side frame member 11, the first elastic member 40, the second elastic member 50, etc. are provided in the same manner as the above-described fitting devices 1 and 2. Also, in FIG. 11, reference numeral 20a" is a through hole. This through hole 20a" penetrates the door end surface of the door body 20 and the second elastic member 50, etc., and its inner edge is made not to interfere with the connection base portion 33b" etc. during the operation of the hinge 30b".

[0054] In addition, the above waterproof structure by the first elastic member 40, the second elastic member 50, etc. can be applied not only to a door device having waterproof properties, a water stop door, etc., but also to a window that rotates to open and close, a shutter device including an overhead door, and other fitting devices. For example, when applying the above waterproof structure to a shutter device, a plurality of panels (or slats) constituting the shutter curtain have a structure in which one panel rotates with respect to the other panel adjacent vertically. Therefore, it is possible to provide the above waterproof structure between these adjacent upper and lower panels.

[0055] In addition, as a configuration added to the above embodiment, it is also possible to project a receiving portion integral with the base portion 41 so as to receive the inner surface of the peripheral wall portion of the pressed portion 42 when it is recessed in the internal space of the pressed portion 42 in the first elastic member 40.

[0056] In addition, the present invention is not limited to the above-described embodiment, and can be appropriately changed without changing the gist of the present invention.

Explanation of reference numerals

[0057] 1: Fitting device 10: Frame body 11: Door end side frame member 20: Door body 25: Pressing protrusion 30: Hinge (rotation axis) 31: One-piece part 32: Other-piece part 33: Shaft part 40: First elastic member 44: Second protruding piece part 41: Base part 42: Pressed part 43: First protruding piece part 44: Second protruding piece part 50: Second elastic member

Claims

1. A door body, a rotating shaft that opens and closes the door body on the butt side of the door body, a butt side frame member provided so as to face the butt portion of the door body in the closed state, a first elastic member provided on the butt side frame member, and a second elastic member provided on the butt portion of the door body, The first elastic member is provided with a protruding piece portion that is sandwiched in the viewing direction between the second elastic member and the butt side frame member when the door body performs a closing operation, and is in surface contact with the second elastic member and the butt side frame member. A fitting device characterized by this.

2. The first elastic member has a pressed portion that is pressed and contracted in the expected direction by the butt side portion of the door body that is closing, The protruding piece portion protrudes from the pressed portion. The fitting device according to claim 1, characterized by this.

3. The butt side frame member is provided with a groove portion so as to face the surface on the closing direction side of the door body in the closed state, and the first elastic member is fitted in the groove portion. The fitting device according to claim 2, characterized by this.

4. A pressing protrusion is provided on the butt side of the door body so as to be pressed against the first elastic member when the door body closes. The fitting device according to any one of claims 1 to 3, characterized by this.

5. The second elastic member covers the butt portion of the door body over substantially the entire length in the door thickness direction. The fitting device according to any one of claims 1 to 4, characterized by this.

6. The second elastic member is formed of a closed-cell foam. The fitting device according to any one of claims 1 to 5, characterized by this.

Citation Information

Patent Citations

  • Door sealing member

    JP1979010543A

  • JP1980101271U

  • JP1981027294U

  • door

    JP1989118076U

  • Sealing-soundproof door

    JP2010229674A