Sealing device and door structure

Abstract

To provide a sealing device and a door structure that are less prone to deterioration of performance even in special environments.SOLUTION: A sealing device 10 has a door frame packing 11 and a door body packing 12; the door frame packing 11 includes a first packing body 21 and a second packing body 22 arranged side by side and a first protrusion 31 projecting to the side of the door body packing 12; the door body packing 12 includes a third packing body 23, and a second protrusion 32 and a third protrusion 33 which protrude to the side of the door frame packing 11; when the door frame packing 11 and the door body packing 12 are in close proximity, the first protrusion 31 contacts the third packing body 23, and the second protrusion 32 and the third protrusion 33 contact the first packing body 21 and the second packing body 22, respectively; and one of the three packing bodies, the first packing body 21, the second packing body 22, and the third packing body 23, has a different performance from those of the other packing bodies.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] This disclosure relates to a sealing device capable of maintaining performance even in a special environment, and a door structure including the sealing device.

Background Art

[0002] Conventionally, a sealing device having high watertightness has been disclosed by arranging a plurality of packings in a staggered manner and bringing a case protrusion for accommodating the packing body into contact with the packing bodies of the opposing packings (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the technique described in Patent Document 1, for example, when a sealing device having airtightness is placed in a special situation such as a fire, the performance of the sealing device may deteriorate in a special environment. Therefore, an object of the present disclosure is to solve the above problems.

Means for Solving the Problems

[0005] A sealing device according to a first aspect of the present invention is a sealing device for sealing the space between a door body and a door frame when the door body is close to the door frame, comprising: one packing; and another packing disposed opposite to the first packing in a first direction, wherein the first packing includes a first packing body and a second packing body provided on one of the door frame and the door body and arranged side by side in a second direction intersecting the first direction, and a first projection disposed between the first packing body and the second packing body and projecting toward the other packing, wherein the other packing includes a third packing body provided on the other of the door frame and the door body, and a second projection disposed on both sides of the third packing body and projecting toward the first packing The packing body includes a first protrusion and a third protrusion, and when the first packing and the other packing are in close proximity, the first protrusion abuts against the third packing body, and the second protrusion and the third protrusion abut against the first packing body and the second packing body, respectively, and one of the three packing bodies, the first packing body, the second packing body and the third packing body, has different properties from the other packing bodies, and the properties of the first to third packing bodies are any of watertightness, airtightness, fire resistance, heat resistance, gas resistance and electromagnetic wave shielding, and the packing body closest to the external space among the first to third packing bodies has watertightness, airtightness or gas resistance as a property to cope with the external environment. Furthermore, among the first to third packing bodies, the packing body that is different from the packing body closest to the external space has fire resistance, heat resistance, or electromagnetic wave shielding properties. Yes, they are.

[0006] According to the sealing device described in the first aspect above, since it can be equipped with multiple types of performance by including packing bodies with different properties, it is possible to suppress performance degradation even in special environments. Furthermore, according to the sealing device described in the first aspect above, it is possible to provide two or more of the following properties: watertightness, airtightness, fire resistance, heat resistance, gas resistance, and electromagnetic wave shielding. In addition, according to the sealing device described in the first aspect above, it is possible to stably maintain multiple types of properties between the door body and the door frame.

[0007] In the sealing device relating to the first aspect described above, one of the three packing bodies, the first packing body, the second packing body, and the third packing body, may have different performance characteristics from the other two packing bodies, or all three packing bodies may each have different performance characteristics.

[0008] In the sealing device relating to the first aspect described above, the arrangement configuration of packing bodies with different performance is not limited, and it is possible to configure any of the first packing body, the second packing body, and the third packing body to have different performance from the other packing bodies.

[0009] In the sealing device relating to the first aspect described above, it is also possible to have a configuration that includes other packing bodies in addition to the first packing body, the second packing body, and the third packing body.

[0010] This invention Second perspective The sealing device relating to the first or second aspect is a sealing device relating to the first aspect, wherein the first protrusion is formed as part of a first packing case that houses the first packing body and the second packing body, and the second protrusion and the third protrusion are formed as part of a second packing case that houses the third packing body.

[0011] the above Second perspective According to the sealing device, a protrusion can be formed on the packing by housing the packing body in the packing case.

[0012] This invention Third perspective The sealing device relating to this is Second perspective The sealing device relating to the above is provided such that at least one of the door body and the door frame is provided with a stopper to maintain a predetermined distance between the door body and the door frame.

[0013] the above Third perspective According to the sealing device, the performance of the sealing device can be maintained at a high level.

[0014] This invention Fourth perspective The sealing device relating to this is From either the first or third perspective The sealing device relating to the above, wherein the first packing body, the second packing body, and the third packing body each have different performance characteristics.

[0015] According to the Fourth perspective sealing device according to the above, by including packing bodies having different performances respectively, it is possible to provide three or more types of performances, so that it is possible to suppress deterioration of performance even in a more special environment.

[0016] The Fifth perspective door structure according to the present invention includes a door body, a door frame, From the first perspective to any one of the fourth perspectives and a

[0017] sealing device according to the above. Fifth perspective According to the door structure according to the above, since the sealing device includes packing bodies having different performances, it is possible to provide a plurality of types of performances, so that it is possible to suppress deterioration of the sealing performance of the door structure even in a special environment.

Brief Description of the Drawings

[0018] [Figure 1] Front view showing a door structure including a sealing device according to an embodiment. [Figure 2] Enlarged cross-sectional view taken along line X-X in FIG. 1. [Figure 3] Enlarged end view taken along line Y-Y in FIG. 1. [Figure 4] (a) and (b) are respectively enlarged cross-sectional views of the sealing device when the door body is in the open state and the closed state. [Figure 5] (a) and (b) are respectively enlarged cross-sectional views of the sealing devices according to the first modification example and the second modification example when the door body is in the open state. [Figure 6] (a) and (b) are respectively enlarged cross-sectional views of the sealing devices according to the third modification example and the fourth modification example when the door body is in the open state.

Modes for Carrying Out the Invention

[0019] The following describes a sealing device 10 and a door structure 100 according to one embodiment of the present invention, using Figures 1 to 4. The sealing device 10 according to this embodiment is used in a door structure that can open and close an opening formed in a wall W, as shown in the door structure 100 in Figures 1 to 3. The door structure 100 in this embodiment consists of a door frame F provided along the inner surface of the opening formed in the wall W, and a door body D connected to the door frame F by two hinges Dh.

[0020] Handles H are provided on the front and rear surfaces of the door body D. The handles H are connected to a pressing member P by a connecting mechanism housed inside the door body D. When the user rotates the handles H, the pressing member P moves laterally. When the user rotates the handles H and extends the pressing member P laterally from the door body D, the pressing member P comes into contact with a pressure receiving member R provided inside the door frame F, as shown in Figure 3, thereby tightening the door body D against the door frame F.

[0021] As shown in Figures 2 and 3, the sealing device 10 according to this embodiment is installed between the inner peripheral edge of the door body D and the outer peripheral edge of the door frame F, thereby sealing the space between the door body D and the door frame F when the door body D is tightened to the door frame F. In this way, the sealing device 10 is used to seal the space between the door body D and the door frame F when the door body D is in close proximity to the door frame F.

[0022] As shown in Figures 4(a) and (b), the sealing device 10 according to this embodiment comprises a door frame packing 11 provided on the door frame F, and a door body packing 12 arranged in the door body D opposite the door frame packing 11 in the first direction (thickness direction of the door body D). The door frame packing 11 is one embodiment of one packing according to the present invention. The door body packing 12 is another embodiment of the other packing according to the present invention.

[0023] The door frame packing 11 consists of a first packing case 41, 41 and a first packing body 21 and a second packing body 22, which are made of elastic material and housed in the first packing case 41, 41.

[0024] In this embodiment, the first packing cases 41, 41 are made of two metal plate-shaped members bent into a roughly L-shape and placed parallel to each other. The inner first packing case 41 (left side in Figure 4(a)) has a first housing section 41a, and the outer first packing case 41 (right side in the same figure) has a second housing section 41b. The first packing body 21 is housed in the first housing section 41a, and the second packing body 22 is housed in the second housing section 41b. In this way, the first packing body 21 and the second packing body 22 are arranged in the door frame packing 11 in a second direction that intersects the first direction (the vertical direction in the case of upper and lower door frames F, and the left and right direction in the case of left and right door frames F).

[0025] In the first packing case 41, a first protrusion 31 is formed between the first housing section 41a and the second housing section 41b, projecting toward the door body D. In this embodiment, the first protrusion 31 is formed as part of the first packing case 41 that houses the first packing body 21, as shown in Figure 4(a). Thus, the first protrusion 31 is positioned between the first packing body 21 and the second packing body 22 and is formed to protrude toward the door body packing 12 side from the first packing body 21 and the second packing body 22.

[0026] On the other hand, the door body packing 12 is composed of a second packing case 42 and a third packing body 23 made of an elastic material housed in the second packing case 42. The second packing case 42 is formed by bending a metal plate-like member into a roughly U-shape. A groove-shaped third housing portion 42a is formed in the second packing case 42. The third packing body 23 is housed in the third housing portion 42a.

[0027] The side ends of the second packing case 42 are formed with a second projection 32 and a third projection 33 that protrude toward the door frame F. That is, the second projection 32 and the third projection 33 are formed as part of the second packing case 42 that houses the third packing body 23. In this way, the second projection 32 and the third projection 33 are positioned on both sides of the third packing body 23 and are formed to protrude toward the door frame packing 11 side from the third packing body 23.

[0028] In this embodiment, each of the packing bodies 21 to 23 is formed to have a substantially uniform width. Furthermore, the door frame packing 11 and the door body packing 12 are arranged so that their widthwise central positions coincide. That is, the first packing body 21 and the second packing body 22 and the third packing body 23 are mounted facing each other at positions offset by approximately half their widthwise length, and are arranged in a staggered pattern overall. As a result, the first protrusion 31 faces the third packing body 23, the second protrusion 32 faces the first packing body 21, and the third protrusion 33 faces the second packing body 22.

[0029] The door frame packing 11 and the door body packing 12 are attached to the door body D and door frame F by welding the first packing case 41 to the door frame F and the second packing case 42 to the door body D, and then bonding the packing bodies 21 to 23 to each of the fixed packing cases 41 and 42 with adhesive. Note that the packing bodies 21 to 23 and the packing cases 41 and 42 may be fixed by fitting instead of adhesive, or both methods may be used in combination.

[0030] Furthermore, methods other than welding may be used to fix the packing cases 41 and 42 to the door body D and door frame F, and multiple methods may be combined. For example, the packing cases 41 and 42 may be welded to the door body D and door frame F, and then a sealant may be filled into the welded area.

[0031] In this embodiment, the packing bodies 21 to 23 have the same cross-sectional shape, eliminating the need to manufacture separate packing bodies with different shapes for each packing. This makes it possible to realize a sealing device 10 that exhibits high airtightness with a simple configuration.

[0032] When the user rotates the handle H to tighten the door body D to the door frame F, as shown in Figure 4(b), the door body packing 12 approaches the door frame packing 11, and the first projection 31 of the door frame packing 11 comes into contact with the front center of the third packing body 23 of the door body packing 12. At the same time, the second projection 32 of the door body packing 12 comes into contact with the front center of the first packing body 21 of the door frame packing 11, and the third projection 33 of the door body packing 12 comes into contact with the front center of the second packing body 22 of the door frame packing 11.

[0033] In this process, the respective protrusions 31-33 elastically deform the packing bodies 21-23, sealing the gap between the protrusions 31-33 and the packing bodies 21-23, thereby sealing the gap between the door body D and the door frame F.

[0034] Furthermore, in this embodiment, as shown in Figure 4(a), a door frame stopper 51 is provided on the door frame F, and a door body stopper 52 is provided on the door body D. When the door body D is tightened against the door frame F, the door body stopper 52 comes into contact with the door frame stopper 51, thereby preventing the door body D from approaching the door frame F beyond a predetermined distance. In other words, the door body D cannot be tightened beyond the position where the door body stopper 52 comes into contact with the door frame stopper 51, and the distance between the door body D and the door frame F cannot fall below a certain level.

[0035] In this embodiment, the door frame stopper 51 and the door body stopper 52 prevent the protruding parts 31-33 and the packing bodies 21-23 from coming into contact with each other under excessive pressure. This prevents the elastic packing bodies 21-23 from breaking or deteriorating.

[0036] In this embodiment, the stopper is composed of a door frame stopper 51 and a door body stopper 52. However, any stopper that prevents the distance between the door body D and the door frame F from falling below a certain level is acceptable, and for example, it may be installed on either the door side or the frame side only.

[0037] In the sealing device 10 according to this embodiment, one of the three packing bodies, the first packing body 21, the second packing body 22, and the third packing body 23, has different performance from the other packing bodies. Specifically, as shown in the hatching patterns of the first packing body 21 to the third packing body 23 in Figures 4(a) and (b), the second packing body 22 has different performance from the first packing body 21 and the third packing body 23.

[0038] In this embodiment, the first packing body 21 and the third packing body 23 are airtight, and the second packing body 22 has different fire resistance than the first packing body 21 and the third packing body 23. As a result, even if a fire occurs near the door body D, for example, the fire-resistant second packing body 22 protects the first packing body 21 and the third packing body 23 from flames, thereby suppressing a decrease in the airtight performance of the sealing device 10. In other words, the sealing device 10 according to this embodiment can suppress performance deterioration even in special environments such as fires. When the sealing device 10 is used between the door body D and the door frame F as in this embodiment, it is possible to stably have multiple types of performance between the door body D and the door frame F.

[0039] Furthermore, the performance of the first packing body 21, the second packing body 22, and the third packing body 23 is not limited to the configuration of this embodiment. That is, the performance of the first packing body 21, the second packing body 22, and the third packing body 23 can be any of the following: watertightness, airtightness, fire resistance, heat resistance, gas resistance, and electromagnetic wave shielding. In this case, it is also possible for the first packing body 21, the second packing body 22, and the third packing body 23 to each have different performance characteristics.

[0040] Of the first packing body 21, the second packing body 22, and the third packing body 23, it is preferable that the second packing body 22, which is closest to the external space in the door body D, has properties to cope with the external environment. Specifically, it is preferable that the second packing body 22 has watertightness, airtightness, or gas resistance.

[0041] For the material of each packing body 21-23, if the packing is watertight, it is preferable to use acrylic, urethane, silicone, butyl rubber, etc. If the packing is airtight, it is preferable to use EPDM foam, polybutadiene, etc. If the packing is fire-resistant, it is preferable to use a heat-expandable fire-resistant material, etc. If the packing is heat-resistant, it is preferable to use heat-resistant silicone, etc. If the packing is gas-resistant, it is preferable to use fluororubber, etc. If the packing is electromagnetic shielding, it is preferable to use metal foil such as rolled copper foil or soft aluminum foil.

[0042] Furthermore, in the sealing device 10 according to this embodiment, the first protrusion 31 is formed as part of the first packing case 41 that houses the first packing body 21. The second protrusion 32 and the third protrusion 33 are formed as part of the second packing case 42 that houses the third packing body 23. In this way, in the sealing device 10, the first protrusion 31 can be formed on the door frame packing 11 by housing the first packing body 21 and the second packing body 22 in the first packing case 41. Also, the second protrusion 32 and the third protrusion 33 can be formed on the door body packing 12 by housing the third packing body 23 in the second packing case 42.

[0043] Furthermore, in the sealing device 10 according to this embodiment, the door body D and the door frame F are provided with stoppers (door frame stopper 51 and door body stopper 52) to maintain a predetermined distance between the door body D and the door frame F. This makes it possible to maintain a distance of at least a certain level between the door body D and the door frame F, thereby enabling high performance in the sealing device 10.

[0044] [Differentiation] The above embodiment can be modified as appropriate, as shown in the following modified examples. Each modified example may be applied in combination with other modified examples, provided that no inconsistencies arise.

[0045] For example, in the above embodiment, the sealing device 10 was used in a door structure 100 consisting of a door frame F and a door body D, but the sealing device 10 can also be applied to structures other than door structures. For example, the sealing device 10 can be applied to panel structures or window structures that close off openings.

[0046] Furthermore, in the above embodiment, the first packing body 21 and the second packing body 22 are provided on the door frame F, and the third packing body 23 is provided on the door body D. However, it is also acceptable to provide the first packing body 21 and the second packing body 22 on the door body D, and the third packing body 23 on the door frame F.

[0047] Furthermore, in the above embodiment, the first packing case 41 and the second packing case 42 are formed by bending a metal plate, but if the necessary strength and rigidity can be obtained, each packing case 41 and 42 can be made of other materials or have other shapes.

[0048] Furthermore, in the above embodiment, the performance of the second packing body 22 is configured to differ from that of the first packing body 21 and the third packing body 23. However, it is also possible to change the arrangement of the packing bodies that have different performance from the other packing bodies. For example, as shown in the first modified example in Figure 5(a), it is also possible to configure the first packing body 21 to have different performance from that of the second packing body 22 and the third packing body 23. Also, as shown in the second modified example in Figure 5(b), it is also possible to configure the third packing body 23 to have different performance from that of the first packing body 21 and the second packing body 22.

[0049] Furthermore, as shown in the hatching pattern of the first packing body 21 to the third packing body 23 in the third modified example in Figure 6(a), it is also possible to configure the first packing body 21, the second packing body 22, and the third packing body 23 to each have different performance characteristics. This allows the sealing device 10 to have three or more types of performance characteristics, making it possible to suppress performance degradation even in more specific environments.

[0050] Furthermore, the number of packing bodies arranged in a staggered pattern is not limited to three. For example, as shown in the fourth modified example in Figure 6(b), the first packing bodies 61 to the third packing bodies 63 are housed in the first packing case 81 of the door frame packing 11A in the door frame F, and the fourth packing body 64 and the fifth packing body 65 are housed in the second packing case 82 of the door body packing 12A in the door body D.

[0051] Then, the first protrusion 71 and the second protrusion 72 of the door frame packing 11A come into contact with the fourth packing body 64 and the fifth packing body 65 of the door body packing 12A. At the same time, the third protrusion 73 to the fifth protrusion 75 of the door body packing 12A come into contact with the first packing body 61 to the third packing body 63 of the door frame packing 11A. In this way, it is also possible to arrange a total of five packing bodies between the door body D and the door frame F.

[0052] In this case as well, one of the five packing bodies, from the first packing body 61 to the fifth packing body 65, has different performance characteristics from the other packing bodies. Specifically, as shown in the hatching pattern of the first packing body 61 to the fifth packing body 65 in Figure 6(b), the third packing body 63 and the fifth packing body 65 have different performance characteristics from the first packing body 61, the second packing body 62, and the fourth packing body 64. In this way, even in this modified example, it is possible to stably have multiple types of performance characteristics between the door body D and the door frame F.

[0053] Furthermore, the stopper provided between the door body D and the door frame F does not necessarily have to be provided on both; it is also possible to provide it on only one of them. [Explanation of Symbols]

[0054] 10 sealing device 11 Door frame gasket 11A Door frame gasket (modified version) 12 Door body gasket 12A Door body gasket (modified version) 21 First packing body 22 Second packing body 23 Third packing body 31 First protrusion 32 Second protrusion 33 Third protrusion 41 First packing case 41a First containment area 41b Second containment area 42 Second packing case 42a Third containment area 51 Door frame stopper 52 Door body stopper 61 First packing body 62 Second packing body 63 Third packing body 64 Fourth packing body 65 Fifth packing body 71 First protrusion 72 Second protrusion 73 Third protrusion 74 Fourth protrusion 75 Fifth protrusion 81 First Packing Case 82 Second packing case 100 Door structure D Door body Dh Hinge F Door frame W Wall H Handle P Pressing Member R Pressure receiving member

Claims

1. A sealing device that seals the space between the door body and the door frame when the door body is close to the door frame, One of the packings, The packing comprises one packing and the other packing arranged opposite to it in the first direction, The aforementioned packing is Provided on either the door frame or the door body, A first packing body and a second packing body are arranged side by side in a second direction intersecting the first direction, It includes a first protrusion positioned between the first packing body and the second packing body and protruding toward the other packing, The other packing is, The other of the aforementioned door frame and the aforementioned door body is provided, The third packing body and The third packing body includes a second protrusion and a third protrusion, which are arranged on both sides of the third packing body and protrude toward the side of the one packing, When the one packing and the other packing are in close proximity, the first protrusion comes into contact with the third packing body, and the second protrusion and the third protrusion come into contact with the first packing body and the second packing body, respectively. One of the three packing bodies, the first packing body, the second packing body, and the third packing body, has different performance characteristics from the other packing bodies. The performance of the first to third packing bodies is one of the following: watertightness, airtightness, fire resistance, heat resistance, gas resistance, and electromagnetic wave shielding. Of the first to third packing bodies mentioned above, the packing body closest to the external space has the properties of watertightness, airtightness, or gas resistance to cope with the external environment. A sealing device in which, among the first to third packing bodies, the packing body that is different from the packing body closest to the external space has fire resistance, heat resistance, or electromagnetic wave shielding properties.

2. The first protrusion is formed as part of the first packing case that houses the first packing body and the second packing body. The sealing device according to claim 1, wherein the second protrusion and the third protrusion are formed as part of the second packing case that houses the third packing body.

3. The sealing device according to claim 2, wherein at least one of the door body and the door frame is provided with a stopper for maintaining a predetermined distance between the door body and the door frame.

4. The sealing device according to any one of claims 1 to 3, wherein the first packing body, the second packing body, and the third packing body each have different performance characteristics.

5. The door itself, Door frame and, A door structure comprising a sealing device according to any one of claims 1 to 4.

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