Closure device, and storage box equipped with closure device

Abstract

The objective is to provide a sealing device that can ensure sufficient airtightness at the opening, and a storage box equipped with the sealing device. [Solution] The closure device of the present invention is a closure device capable of closing an opening formed in a partition body that divides a space into multiple sections by inserting a long object from the outside to the inside, and comprises an elastic layer and a first hard layer superimposed on the elastic layer and being harder than the elastic layer, wherein the elastic layer has a slit through which a long object can be inserted in the lamination direction between the elastic layer and the first hard layer, and the first hard layer has at least one first opening at a position overlapping with the slit.

Description

Technical Field

[0001] The present invention relates to a closing member for closing an opening formed in a partitioning body such as a wall of a house with a long member inserted therethrough, and a storage box provided with the closing member.

Background Art

[0002] Conventionally, a multimedia information panel attached to a wall of a house or the like and storing information devices and the like has been known (see Patent Document 1).

[0003] This multimedia information panel has a wire passing hole for drawing a cable or the like into a portion facing the wall to which the multimedia information panel is attached, and draws a cable or the like drawn out from the wall into the multimedia information panel through the wire passing hole. Then, the cable or the like drawn into the multimedia information panel is connected to an information device or the like housed in the multimedia information panel.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In recent years, buildings such as houses are required to have heat insulation performance and are being made highly airtight. When attaching various devices such as multimedia information panels and outlets to walls, airtightness measures are also required. However, in the case of attaching the above-mentioned multimedia information panel to the wall, since a wire passing hole for drawing a cable or the like drawn out from the wall into the multimedia information panel is provided, the airtightness is reduced.

[0006] One might consider using sponges or urethane to seal the gap between the periphery of the cable passage hole and the cable, etc., in order to ensure airtightness. However, these materials are easily deformed (i.e., have poor shape retention), and as a result, it is not possible to adequately ensure airtightness in the cable passage hole when the cable, etc., is inserted.

[0007] Therefore, the object of the present invention is to provide a sealing device that can sufficiently ensure airtightness at the opening, and a storage box equipped with the sealing device. [Means for solving the problem]

[0008] The occlusion device of the present invention is A closing device capable of closing an opening formed in a partition that divides a space into multiple sections, by inserting a long object from the outside to the inside of the opening, Elastic layer, The elastic layer is superimposed on the first hard layer, which is harder than the elastic layer, The elastic layer has a slit through which the elongated body can be inserted in the lamination direction between the elastic layer and the first hard layer. The first hard layer has at least one first opening at a position that overlaps with the slit.

[0009] With this configuration, by inserting the elongated body through the slit and the first opening and then closing the opening with a sealing device, the portion of the elastic layer around the slit that has been elastically deformed by the insertion of the elongated body is sufficiently pressed against the elongated body, thereby effectively sealing the space (gap) around the elongated body at the opening.

[0010] Furthermore, since the first opening is formed in the sealing device at a position overlapping with the slit, the area around the slit of the elastic layer is supported by the first rigid layer, thereby suppressing deformation of the elastic layer caused by inserting a long object into the slit (i.e., ensuring the shape retention of the elastic layer), and thereby ensuring sufficient airtightness at the opening of the partition.

[0011] In the aforementioned occluding device, The first hard layer may have a lid portion that can open and close the first opening.

[0012] With this configuration, when a long object is not inserted through the first opening, the lid can close the first opening, thereby ensuring a more adequate airtight seal at the first opening.

[0013] Furthermore, in the aforementioned occluding device, A second hard layer is provided, which is superimposed on the elastic layer so as to sandwich the elastic layer between the first hard layer and the elastic layer, and is harder than the elastic layer. The second hard layer may have at least one second opening at a position overlapping with the slit.

[0014] With this configuration, since the elastic layer is sandwiched between hard parts (first hard layer and second hard layer) on both sides in the lamination direction, deformation of the elastic layer caused by inserting a long object into the slit is more effectively suppressed.

[0015] Furthermore, the storage box of the present invention is The device comprises a housing box body having an opening for drawing in a long object and capable of housing at least one of the equipment and power supply connected to the long object, and one of the above-mentioned closing devices for closing the opening.

[0016] With this configuration, by inserting the elongated body through the slit and the first opening and then closing the opening with a sealing device, the portion of the elastic layer around the slit that has been elastically deformed by the insertion of the elongated body is sufficiently pressed against the elongated body, thereby effectively sealing the space (gap) around the elongated body at the opening.

[0017] Furthermore, since the first opening is formed in the sealing device at a position overlapping with the slit, the area around the slit of the elastic layer is supported by the first rigid layer, thereby suppressing deformation of the elastic layer caused by inserting a long object into the slit (i.e., ensuring the shape retention of the elastic layer), and thereby ensuring sufficient airtightness at the entrance opening of the storage box. [Effects of the Invention]

[0018] As described above, according to the present invention, it is possible to provide a plug for sufficiently ensuring airtightness at the opening, and a storage box provided with the plug.

Brief Description of the Drawings

[0019] [Figure 1] FIG. 1 is a perspective view showing a storage box according to the present embodiment and an opening of a partition body in which the storage box is installed. [Figure 2] FIG. 2 is a perspective view showing a state where the cover body of the storage box is removed. [Figure 3] FIG. 3 is a perspective view showing a state where a plug is attached to a rear wall portion of a box body of the storage box. [Figure 4] FIG. 4 is a front view showing a state where the cover body of the storage box is removed in a state where equipment is installed in the storage box. [Figure 5] FIG. 5 is a perspective view of the plug. [Figure 6] FIG. 6 is an exploded perspective view of the plug. [Figure 7] FIG. 7 is an enlarged view of an end portion of the plug in the horizontal direction. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 7, and is a cross-sectional view showing a state where a first lid portion of a first opening and a third lid portion of a third opening are opened. [Figure 9] FIG. 9 is an exploded perspective view of a plug according to another embodiment.

Embodiments for Carrying Out the Invention

[0020] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 8.

[0021] The sealing device 1 in this embodiment, as shown in Figures 1 to 3, is a component that ensures airtightness at the entrance opening 121 of the housing box 10 by sealing the entrance opening 121 while a long object C such as a communication line, electric wire, cable, or tube is inserted through the entrance opening 121. Below, the configuration of the housing box 10 to which the sealing device 1 is attached will be described first, and then the configuration of the sealing device 1 will be described.

[0022] The housing box 10 of this embodiment is an information panel that is placed on a wall 500 of a building or the like and houses various devices 550 such as network, television, telephone, and power supply equipment inside (see Figure 4). This housing box 10 is box-shaped (approximately rectangular parallelepiped) with an internal space and comprises a box body 11 installed on the wall 500 and a cover body 14 that covers the front side of the box body 11. The housing box 10 of this embodiment is a partition that divides space into multiple parts (more specifically, divides the space into the internal space and external space of the housing box 10).

[0023] The box body 11 has a rear wall portion 12 that extends along the wall 500 when installed, and a first peripheral wall portion 13 that extends forward from the peripheral edge of the rear wall portion 12.

[0024] The rear wall portion 12 has a pull-in opening 121 positioned to overlap with the wiring opening 501 formed in the wall 500 when the box body 11 is installed on the wall 500. In this embodiment, the rear wall portion 12 is a rectangular plate that is elongated in the left-right direction and is fixed to the wall 500 with screws or the like.

[0025] The entry opening 121 is an opening for drawing the elongated object C, which has been pulled out from the wiring opening 501 provided in the wall 500, into the interior of the housing box 10. In this embodiment, the entry opening 121 is located in the center of the rear wall 12 and is a long rectangle in the left-right direction.

[0026] The retraction opening 121 has a plurality of locking portions 122. These locking portions 122 are arranged at intervals in the direction of the periphery of the retraction opening 121. The locking portions 122 in this embodiment have screw holes and are located at the four corners of the retraction opening 121 and at the center in the left-right direction of the upper and lower edges of the retraction opening 121.

[0027] The cover body 14 is removably attached to the rear wall portion 12. The cover body 14 comprises a front wall portion 15 that extends parallel or substantially parallel to the rear wall portion 12, and a second circumferential wall portion 16 that extends rearward from the peripheral edge of the front wall portion 15. In this embodiment, the front wall portion 15 is a rectangular plate that is elongated in the left-right direction.

[0028] With the cover body 14 covering the front side of the box body 11 (i.e., with the cover body 14 attached to the box body 11), the second peripheral wall portion 16 of the cover body 14 and the first peripheral wall portion 13 of the box body 11 constitute the bottom wall, top wall, and side walls of the storage box 10.

[0029] Furthermore, the storage box 10 also includes a partition section 17 that divides the internal space of the storage box 10 into multiple spaces. This partition section 17 is detachably positioned on the lower part of the box body 11. More specifically, the partition section 17 is detachably attached to the lower part of the box body 11 with various devices 550 placed inside or on its top surface.

[0030] Next, the configuration of the occlusion device 1 will be described.

[0031] As shown in Figures 5 and 6, the closure device 1 comprises an elastic layer 3 and a first hard layer 2 superimposed on the elastic layer 3. The closure device 1 also comprises a second hard layer 4 superimposed on the elastic layer 3, sandwiching the elastic layer 3 between the first hard layer 2 and the elastic layer 3. That is, the closure device 1 is constructed by sequentially laminating the first hard layer 2, the elastic layer 3, and the second hard layer 4. In the closure device 1 of this embodiment, each layer 2, 3, and 4 is connected by adhesive or the like. Alternatively, the closure device 1 may be configured so that each layer 2, 3, and 4 is separated before installation, and then connected by adhesive or the like during installation.

[0032] The first hard layer 2 has at least one first opening 21. The first hard layer 2 in this embodiment also has a third opening 23. Specifically, the first hard layer 2 is a plate-shaped member extending in the left-right direction and has a plurality of first openings 21 and a plurality of third openings 23. The first hard layer 2 also has a first cover portion 22 that can open and close the first openings 21. The first hard layer 2 in this embodiment has a third cover portion 24 that can open and close the third openings 23.

[0033] This first hard layer 2 is harder than the elastic layer 3 (i.e., it is harder than the elastic layer 3), and in this embodiment, the first hard layer 2 is formed from foamed or non-foamed resin materials such as olefin resins and PVC resins, or from metal materials such as aluminum, iron, and stainless steel.

[0034] More specifically, the first hard layer 2 is a rectangular plate that is elongated in the left-right direction and has four notches 25 at each corner. That is, the first hard layer 2 has four notches 25. In addition, the first hard layer 2 has second notches 26a and 26b at the center in the left-right direction at the upper and lower ends, which are recessed from the upper edge position or the lower edge position toward the center in the vertical direction. That is, the first hard layer 2 has two second notches 26a and 26b.

[0035] These notches (first notch 25, second notches 26a, 26b) are formed in the first hard layer 2 at a position that overlaps with the locking portion 122 of the retraction opening 121 when the closing device 1 is placed on top of the retraction opening 121 of the box body 11 of the storage box 10.

[0036] Each of the four notches 25 is a notch of the same shape, and in this embodiment, the notches 25 are L-shaped.

[0037] The two second notches 26a and 26b are notches of different shapes. Specifically, the upper second notch 26a is a U-shaped notch with the top open, and the lower second notch 26b is a U-shaped notch with the bottom open. Because the two second notches 26a and 26b have different shapes, it becomes easier for workers to understand the orientation of the first hard layer 2 when assembling the closure device 1 (i.e., when laminating the first hard layer 2, the elastic layer 3, and the second hard layer 4), thereby preventing errors during assembly.

[0038] The multiple first openings 21 include openings of multiple shapes (multiple types). In this embodiment, the multiple first openings 21 include two types of square-shaped openings (first square opening 21a, second square opening 21b) and one type of rectangular opening (rectangular opening 21c).

[0039] The first square openings 21a are arranged in the upper and central parts of the first hard layer 2 in the vertical direction, and in the horizontal direction, they are arranged from both ends of the first hard layer 2 toward the center. That is, in the horizontal direction, rows of the first square openings 21a are arranged in the upper and central parts of the first hard layer 2, on one side of the center and the other side of the center.

[0040] The second square openings 21b are aligned vertically in the central part of the first hard layer 2 in the left-right direction. In the first hard layer 2 of this embodiment, the second square openings 21b are aligned vertically between the second notches 26a and 26b.

[0041] The rectangular opening 21c is a long rectangle in the left-right direction. This rectangular opening 21c is located between the first square opening 21a and the second square opening 21b in the left-right direction. In this embodiment, the rectangular opening 21c is located in the same or approximately the same position as each row of the first square opening 21a in the vertical direction.

[0042] The third opening 23 is a long rectangle in the left-right direction. This third opening 23 is located at the bottom of the first hard layer 2. In this embodiment, the third opening 23 is located on one side and the other side of the second notches 26a and 26b in the left-right direction of the first hard layer 2. This third opening 23 extends in the left-right direction from the edge of the first hard layer 2 to the center (in other words, from the outer edge of the row of first square openings 21a to the edge of the rectangular opening 21c on the second square opening 21b side).

[0043] The first cover portion 22 is positioned for each of the following: one first square opening 21a, one second square opening 21b, or one rectangular opening 21c. That is, the first square opening 21a, the second square opening 21b, and the rectangular opening 21c are each closed by one first cover portion 22a.

[0044] The first lid portion 22 is connected to the opening periphery of the first opening 21 at one point (via the first connecting portion 221) (see Figure 7). Specifically, the first lid portion 22 has the first connecting portion 221 at its upper end and in the center in the left-right direction. In this embodiment, the first lid portion 22 is formed in a plate-like member (first hard layer 2) that does not have cuts or openings formed therein, by providing a cut (slit) along the shape of the first lid portion 22 (first opening 21), leaving the first connecting portion 221 intact.

[0045] The first lid portion 22 remains connected to the opening periphery of the first opening 21 by the first connecting portion 221 when the first opening 21 is opened (see Figure 8). In this embodiment, the first lid portion 22 moves so as to rotate around the position of the first connecting portion 221 when viewed from the left and right directions (see arrow α1 in Figure 8). The first lid portion 22 may be separated from the opening periphery of the first opening 21 (first hard layer 2) by cutting the first connecting portion 221 or the like. Also, in Figures 3 and 4, the first lid portion 22 is omitted in the first opening 21 through which the elongated body C is inserted in order to make the structure easier to understand.

[0046] Multiple third lids 24 are arranged around a single third opening 23. In this embodiment, the third lids 24 are arranged in a left-right direction within the third opening 23, and adjacent third lids 24 are in contact with each other. That is, the third opening 23 is closed by multiple third lids 24.

[0047] The third lid portion 24 is connected to the periphery of the opening of the third opening 23 at one point (via the third connecting portion 241) (see Figure 7). Specifically, the third lid portion 24 has the third connecting portion 241 at its upper end and in the center in the left-right direction. In this embodiment, the third lid portion 24 is formed in a plate-like member (first hard layer 2) that does not have cuts or openings formed therein, by providing a cut (slit) along the shape of the third lid portion 24, leaving the third connecting portion 241 intact.

[0048] The third lid portion 24 remains connected to the opening periphery of the third opening 23 by the third connecting portion 241 when a part of the third opening 23 is opened (see Figure 8). In this embodiment, the third lid portion 24 moves so as to rotate around the position of the third connecting portion 241 when viewed from the left and right directions (see arrow α2 in Figure 8). The third lid portion 24 may be separated from the opening periphery of the third opening 23 (first hard layer 2) by cutting the third connecting portion 241 or the like. Also, in Figures 3 and 4, the description of the third lid portion 24 in the third opening 23 through which the elongated body C is inserted is omitted for easier understanding of the structure.

[0049] The elastic layer 3 has a slit 31 through which a long body C can be inserted in the lamination direction between the elastic layer 3 and the first hard layer 2 (hereinafter simply referred to as the "lamination direction"). Specifically, the elastic layer 3 has the same or substantially the same contour shape as the first hard layer 2. That is, the elastic layer 3 is a rectangular plate extending in the left-right direction and has third notches 35 at its four corners. The elastic layer 3 also has fourth notches 36a and 36b at the center in the left-right direction at its upper and lower ends, which are recessed from the upper edge position or the lower edge position toward the center in the vertical direction.

[0050] The third notch 35 has the same shape as the first notch 25 adjacent to it in the stacking direction, and the fourth notches 36a and 36b have the same shape as the second notches 26a and 26b adjacent to them in the stacking direction.

[0051] The elastic layer 3 is formed from rubber, elastomer, olefin (foam, solid plate, sheet, etc.), or soft film (resin material such as elastomer or soft PVC). In this embodiment, the elastic layer 3 is made of foam, but it may also be made of a non-foamed material. In this embodiment, the elastic layer 3 is thicker than the first hard layer 2 (i.e., the dimensions of the elastic layer 3 in the lamination direction are greater than the dimensions of the first hard layer in the lamination direction). For example, the ratio of the thickness of the elastic layer 3 to the thickness of the first hard layer 2 is approximately 1.1:1 to 10:1.

[0052] The slits 31 are positioned in the lamination direction opposite to the first opening 21 of the first hard layer 2. In this embodiment, multiple slits 31 are formed in the elastic layer 3.

[0053] Specifically, the slit 31 is positioned (formed) in the elastic layer 3 at a location opposite to (overlapping with) the first square opening 21a, the second square opening 21b, and the rectangular opening 21c in the lamination direction. The slit 31 in this embodiment is an X-shaped slit formed by cuts along the diagonals of each opening 21a, 21b, and 21c.

[0054] In this embodiment, the slit 31 is not located in a position (region) that overlaps with the third opening 23 of the first hard layer 2 in the elastic layer 3.

[0055] The second hard layer 4 has at least one second opening 41. The second hard layer 4 in this embodiment also has a fourth opening 43. Specifically, the second hard layer 4 is a plate-shaped member extending in the left-right direction and comprises a plurality of second openings 41 and a plurality of fourth openings 43. This second hard layer 4 is harder than the elastic layer 3 (i.e., it is harder than the elastic layer 3). The second hard layer 4 in this embodiment, like the first hard layer 2, is formed from foamed or non-foamed resin materials such as olefin resins and PVC resins, or from metal materials such as aluminum, iron, and stainless steel.

[0056] The second hard layer 4 of this embodiment has the same configuration as the first hard layer 2, except that it does not have a lid portion (first lid portion 22, third lid portion 24). Specifically, the second hard layer 4 is a rectangular plate that is elongated in the left-right direction and has a fifth notch portion 45 at each of its four corners. That is, the second hard layer 4 has four fifth notches 45. In addition, the second hard layer 4 has a sixth notch portion 46a, 46b at the center of the left-right direction at the upper and lower ends, which is recessed toward the center in the vertical direction. That is, the second hard layer 4 has two sixth notches 46a, 46b.

[0057] Each of the fifth notches 45 has the same shape and arrangement as the first notch 25 of the first hard layer 2, and the sixth notches 46a and 46b also have the same shape and arrangement as the second notches 26a and 26b of the first hard layer 2. In other words, the contour shape of the second hard layer 4 is the same as the contour shape of the first hard layer 2.

[0058] The multiple second openings 41 include openings of multiple shapes (multiple types). The multiple second openings 41 in this embodiment have the same configuration as the multiple first openings 21 in the first hard layer 2. That is, the multiple second openings 41 in the second hard layer 4 of this embodiment include two types of square-shaped openings (third square opening 41a, fourth square opening 41b) and one type of rectangular opening (rectangular opening 41c).

[0059] Furthermore, the third square opening 41a has the same shape and arrangement as the first square opening 21a of the first hard layer 2, the fourth square opening 41b has the same shape and arrangement as the second square opening 21b of the first hard layer 2, and the rectangular opening 41c has the same shape and arrangement as the rectangular opening 21c of the first hard layer 2.

[0060] Furthermore, the fourth opening 43 has the same shape and arrangement as the third opening 23 of the first hard layer 2.

[0061] Next, we will explain how to install the storage box 10 onto the wall 500.

[0062] First, the box body 11 is installed on the wall 500 so that the entry opening 121 of the box body 11 and the wiring opening 501 of the wall 500 overlap.

[0063] Next, the elongated body C is pulled from inside the wall 500 to the front side of the box body 11 through the wiring opening 501 and the entry opening 121.

[0064] Next, the lid 22 of the first opening 21 at the position through which the elongated body C is to pass is opened, and the elongated body C, which has been pulled into the storage box 10 from the retraction opening 121 of the box body 11, is inserted into the corresponding part of the closure device 1. At this time, the closure device 1 is inserted so that each elongated body C passes through the second opening 41, the slit 31, and the first opening 21 in order, which overlap in the stacking direction.

[0065] Here, when inserting the elongated body C through the third opening 23, the required portion of the third lid 24 is opened (i.e., some or all of the multiple third lids 24 that cover the third opening 23 are opened), and a slit or hole is formed in the elastic layer 3 with a cutter or the like in the portion that overlaps with the third opening 23 and through which the elongated body C is to be inserted. Then, the elongated body C is pulled out into the inside of the storage box 10 from the third opening 23 (more specifically, the portion of the third lid 24 in the third opening 23 that has been opened) through the formed slit or hole.

[0066] When each elongated body C is inserted into the closure device 1, the closure device 1 is positioned to close the entry opening 121 of the box body 11, and after the rectangular washers 5 are positioned to correspond to the notches 25, 26a, and 26b, the locking member (a screw in this embodiment) 6 through which the washers 5 are inserted engages with the locking portion 122 of the entry opening 121 (by screwing it in in this embodiment), thereby fixing the closure device 1 to the box body 11 (storage box 10). At this time, since the rear wall portion 12 of the box body 11 of the storage box 10 spreads out along the wall 500, the closure device 1 closes the entry opening 121 of the box body 11, and also closes the wiring opening 501 of the wall 500.

[0067] Next, the elongated body C through which the closure device 1 is inserted is connected to the equipment 550 housed inside the housing box 10 (see Figure 4). Once each elongated body C that has been inserted through the closure device 1 and pulled into the housing box 10 is connected to the equipment 550, the cover body 14 is attached to the front of the box body 11, thereby completing the installation of the housing box 10 on the wall 500.

[0068] The above-described closure device 1 is capable of closing a wiring opening (opening) 501 formed in a housing box (compartment) 500 that divides a space into multiple sections, with a long body C inserted from the outside to the inside. The closure device 1 comprises an elastic layer 3 formed of foam and a first hard layer 2 superimposed on the elastic layer 3 and being harder than the elastic layer 3. The elastic layer 3 has a slit 31 through which the long body C can be inserted in the lamination direction between the elastic layer 3 and the first hard layer 2, and the first hard layer 2 has at least one first opening 21 at a position overlapping with the slit 31.

[0069] With this configuration, by inserting the elongated body C through the slit 31 and the first opening 21 and then closing the wiring opening 501 with the closing device 1 (more specifically, closing the wiring opening 501 by closing the pull-in opening 121), the portion of the elastic layer 3 around the slit 31 that has been elastically deformed by the insertion of the elongated body C is sufficiently pressed against the elongated body C, thereby effectively sealing the space (gap) around the elongated body C at the location of the wiring opening 501.

[0070] Furthermore, since the first opening 21 is formed in the closure device 1 at a position overlapping with the slit 31, the area around the slit 31 of the elastic layer 3 is supported by the first hard layer 2, thereby suppressing deformation of the elastic layer 3 caused by inserting the long body C into the slit 31 (i.e., ensuring the shape retention of the elastic layer 3), and thereby ensuring sufficient airtightness at the wiring opening 501 of the partition body 500.

[0071] In the sealing device 1 of this embodiment, the first hard layer 2 has a first lid portion (lid) 22 that can open and close the first opening 21. With this configuration, when a long body C is not inserted through the first opening 21, the first lid portion 22 closes the first opening 21, thereby ensuring a more adequate airtight seal at the first opening 21.

[0072] Furthermore, the closure device 1 of this embodiment includes a second hard layer 4 which is harder than the first hard layer 3 and is superimposed on the elastic layer 3 so as to sandwich the elastic layer 3 between them, and the second hard layer 4 has at least one second opening 41 at a position that overlaps with the slit 31. With this configuration, since the elastic layer 3 is sandwiched from both sides in the stacking direction by hard parts (first hard layer 2 and second hard layer 4), deformation of the elastic layer 3 caused by inserting the elongated body C into the slit is suppressed more effectively.

[0073] Furthermore, in the sealing device 1 of this embodiment, since the third opening 23 of the first hard layer 2 is closed by a plurality of third lids 24, the third lid 24 to be opened can be selected depending on the thickness, number, and material of the elongated body C through which the third opening 23 is inserted. As a result, only the necessary area for inserting the elongated body C, etc., can be opened in the third opening 23, thus reducing the decrease in airtightness in that area compared to when the third opening 23 is fully open. Moreover, it is easy to accommodate cases where a large opening is required due to the elongated body C or other materials through which the third opening 23 is inserted.

[0074] It should be noted that the sealing device and the storage box equipped with the sealing device of the present invention are not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the present invention. For example, the configuration of one embodiment can be added to the configuration of another embodiment, and a part of the configuration of one embodiment can be replaced with the configuration of another embodiment. Furthermore, a part of the configuration of one embodiment can be deleted.

[0075] The closure device 1 in the above embodiment has a three-layer structure in which three plate-shaped members, a first hard layer 2, an elastic layer 3, and a second hard layer 4, are laminated together, but is not limited to this configuration. The closure device 1 may also have a two-layer structure consisting of a first hard layer 2 and an elastic layer 3. In this case, the closure device 1 may be attached to the box body 11 such that the first hard layer 2 is located on the side that contacts the box body 11. This suppresses the migration of oil and other substances from the elastic layer 3 to the box body 11. Alternatively, the closure device 1 may be attached to the box body 11 such that the first hard layer 2 is located on the side opposite to the box body 11, that is, so that the elastic layer 3 is located on the side that contacts the box body 11. Furthermore, the closure device 1 may have four or more layers.

[0076] The closure device 1 in the above embodiment closes the retraction opening 121 from the inside of the storage box 10, but is not limited to this configuration. The closure device 1 may also close the retraction opening 121 from the outside of the storage box 10. Alternatively, the closure device 1 may close the retraction opening 121 with a portion of it positioned inside the storage box 10 and the remaining portion positioned outside the storage box 10.

[0077] The blocking device 1 in the above embodiment closes the entrance opening 121 of the storage box 10, but the configuration is not limited to this. The blocking device 1 may also directly close the entrance opening (opening) 501 provided in the wall 500 or floor, etc. In this case, the wall 500 or floor, etc., is the partition. Note that the partition is not limited to the storage box 10, the wall 500, and the floor. That is, the partition can be anything that divides a space into multiple parts.

[0078] Furthermore, the mounting position of the closure device 1 is not limited. The closure device 1 may be mounted upside down compared to the position in the above embodiment. The closure device 1 may also be mounted in a position where its longitudinal direction coincides with the vertical direction. It may also be mounted to block a pull-in opening (i.e., an opening whose opening direction is oriented vertically) provided in the lower wall of the storage box 10.

[0079] Furthermore, the blocking device 1 may be cut to fit the shape and size of the access opening 121 before use. In other words, instead of attaching the blocking device 1 to the access opening 121 in its original shape, it may be cut or otherwise modified to change its shape as appropriate before being attached to the access opening 121.

[0080] In the above embodiment of the sealing device 1, the first hard layer 2 has lid portions (first lid portion 22, third lid portion 24) arranged at each opening (first opening 21, third opening 23), but the configuration is not limited to this. The first hard layer 2 may have a configuration that does not have both the first lid portion 22 and the third lid portion 24, or one of them. Furthermore, in the first hard layer 2, the first lid portion 22 may be arranged at only a portion of the multiple first openings 21, or the third lid portion 24 may be arranged at only a portion of the multiple third openings 23.

[0081] Furthermore, in the above embodiment of the sealing device 1, the second hard layer 4 does not have a cover portion that closes the openings (second opening 41, fourth opening 43), but the configuration is not limited to this. The second hard layer 4 may also be configured to have a cover portion that covers at least a part of the openings 41 and 44.

[0082] In other words, the lid portions 22 and 24 may be provided only on the first hard layer 2, or only on the second hard layer 4, or on both the first hard layer 2 and the second hard layer 4.

[0083] In the above embodiment of the closure device 1, the lids 22 and 24 are connected to the openings 21 and 23 at one point (connected via a single connection part (first connection part 221, third connection part 241)), but the configuration is not limited to this. The lids 22 and 24 may be connected to the openings 21 and 23 at multiple points, that is, connected via multiple connection parts 221 and 241. Alternatively, there may be no connection parts 221 and 241 connecting the lids 22 and 24 to the openings 21 and 23.

[0084] Furthermore, although the lid portions 22 and 24 in the above embodiment are connected at the top to the opening periphery of the openings 21 and 23 (i.e., the connecting portions 221 and 241 are located on the top of the lid portions 22 and 24), the configuration is not limited to this. The connecting portions 221 and 241 may be located at positions other than the top of the lid portions 22 and 24, such as on the sides or bottom.

[0085] Alternatively, the lids 22 and 24 may be configured to detach from the openings 21 and 23 by perforations or the like, thereby closing the openings 21 and 23.

[0086] The specific shapes and arrangements of the openings 21, 23, 41, and 43 in the first hard layer 2 and the second hard layer 4 are not limited. Each opening 21, 23, 41, and 43 can be set as appropriate depending on the thickness and number of elongated bodies C through which the openings 21, 23, 41, and 43 are inserted, the arrangement of the equipment 550 inside the housing box 10, etc., and can be a triangle or a polygon with pentagons or more sides, a circle, etc.

[0087] Furthermore, the specific number, position, and shape of the notches 25, 26a, 26b, 35, 36a, 36b, 45, 46a, and 46b in each layer 2, 3, and 4 of the closure device 1 are not limited. That is, the notches 25, 26a, 26b, 35, 36a, 36b, 45, 46a, and 46b may be in shapes other than L-shape, U-shape, or U-shape.

[0088] Furthermore, the specific number, position, and shape of the slits 31 in the elastic layer 3 are not limited. For example, a configuration in which multiple first openings 21 overlap a single slit 31 is also possible.

[0089] In the above embodiment of the sealing device 1, the first hard layer 2 and the second hard layer 4 have the same configuration except for the lid portions 22 and 24, but the invention is not limited to this. The first hard layer 2 and the second hard layer 4 may have different configurations.

[0090] Furthermore, in the above-described closure device 1, the first hard layer 2 and the second hard layer 4 are of the same thickness, and the elastic layer 3 is thicker than the first hard layer 2 and the second hard layer 4, but the configuration is not limited to this. In each of the layers 2, 3, and 4 that make up the closure device 1, all layers may have the same thickness, any two layers may have the same thickness and only the thickness of the remaining layer may differ, or each layer may have a different thickness.

[0091] For example, as shown in Figure 9, the closure device 1A may have a frame-shaped second hard layer 4A, with the first hard layer 2 laminated on the elastic layer 3 so as to be separable. In this case, an adapter 7 for supporting a thick (large diameter) elongated body K, such as a pipe member, is attached to the second hard layer 4A, and the first hard layer 2 is removed. Subsequently, a slit or hole is formed in the elastic layer 3 through which the elongated body K can be inserted, and the pull-in opening 121 is closed with the closure device 1A in which the elongated body K is inserted through the opening in the second hard layer 4A and the slit or hole in the elastic layer 3. This effectively seals the space (gap) around the elongated body K at the pull-in opening 121 (i.e., ensures airtightness) even when a thick elongated body K, such as a pipe member, is pulled into the storage box 10. Note that the adapter 7 does not have to be a component of the closure device 1A. In this case, the adapter 7 may be attached to the storage box 10, etc., together with the closure device 1 shown in Figure 5, for example, by fastening them together.

[0092] In the above embodiment, the storage box 10 is positioned with its rear wall portion 12 along the wall 500, but it is not limited to this configuration. The storage box 10 may be installed in a configuration where a space is formed behind the rear wall portion 12, for example, between two parallel beams, and in this configuration, a long body C is pulled in from the outside to the inside through a pull-in opening 121 formed in the rear wall portion 121. In this case, the storage box 10 may be positioned so that half of it is embedded in the wall (for example, the part of the storage box 10 on the rear wall portion 12 side, such as the box body 11, is embedded in the wall).

[0093] Furthermore, the position of the retraction opening 121 in the storage box 10 is not limited. In the above embodiment of the storage box 10, the retraction opening 121 is located in the rear wall 12 of the box body 11, but it may also be located in the side walls, bottom wall, top wall, etc. of the storage box 10. In this case, the side walls, bottom wall, top wall, etc. of the storage wall 10 are partitions.

[0094] The storage box 10 in the above embodiment does not include a closure device 1 (i.e., the storage box 10 and the closure device 1 are sold and distributed separately), but the configuration is not limited to this. The storage box 10 may also be configured to include a closure device 1. That is, the closure device 1 may be sold and distributed integrally as one of the components of the storage box 10. In this case, the storage box 10 in the above embodiment is used as the storage box body. That is, the storage box comprises a storage box body (corresponding to the storage box in the above embodiment) 10 having an entry opening 121 for drawing a long body C into the interior and capable of accommodating equipment (at least one of information equipment and a power supply) 150 connected to the long body C, and a closure device 1 for closing the entry opening 121.

[0095] With this configuration, when the housing box body 10 is positioned in the partition 500 such as the wall of a building, so that the wiring opening (opening) 501 formed in the partition 500 overlaps with the entry opening 121, and the elongated body C is pulled into the housing box through the wiring opening 501 and the entry opening 121, the entry opening 121 is closed by the closing device 1 while the elongated body C is inserted through the slit 31 and the first opening 21. As a result, the portion of the elastic layer 3 around the slit 31 that has been elastically deformed by the insertion of the elongated body C is sufficiently pressed against the elongated body C, thereby effectively sealing the space (gap) around the elongated body C at the entry opening 121 (i.e., the wiring opening 501).

[0096] Furthermore, since the first opening 21 is formed in the closure device 1 at a position overlapping with the slit 31, the area around the slit 31 of the elastic layer 3 is supported by the first hard layer 2, thereby suppressing deformation of the elastic layer 3 caused by inserting the long body C into the slit 31 (i.e., ensuring the shape retention of the elastic layer 3). As a result, sufficient airtightness is ensured at the entrance opening 121 of the information panel. [Explanation of Symbols]

[0097] 1, 1A...obturator, 2...first hard layer, 21...first opening, 21a...first square opening, 21b...second square opening, 21c...rectangular opening, 22, 22a...first lid part, 221...first connection part, 23...third opening, 24...third lid part, 241...th Three connection parts, 25...first notch part, 26a, 26b...second notch part, 3...elastic layer, 31...slit, 35...third notch part, 36a, 36b...fourth notch part, 4, 4A...second hard layer, 41...second opening part, 41a...third square opening part, 41b...third part Square opening, 41c... Rectangular opening, 43... Fourth opening, 45... Fifth notch, 46a, 46b... Sixth notch, 5... Washer, 6... Screw (locking member), 7... Adapter, 10... Enclosure box (compartment), 11... Box body, 12... Rear wall (compartment), 121... Entrance opening (opening), 122... Locking part, 13... First perimeter wall, 14... Cover body, 15... Front wall, 16... Second perimeter wall, 17... Compartment, 500... Wall (compartment), 501... Wiring opening (opening), 550... Equipment, C, K... Long section

Claims

1. A closing device capable of closing an opening formed in a partition that divides a space into multiple sections, by inserting a long object from the outside to the inside of the opening, Elastic layer, The elastic layer is superimposed on the first hard layer, which is harder than the elastic layer, The elastic layer has a slit through which the elongated body can be inserted in the lamination direction between the elastic layer and the first hard layer. The first hard layer has at least one first opening in a position overlapping with the slit, and is a closure device.

2. The sealing device according to claim 1, wherein the first hard layer has a lid portion that can open and close the first opening.

3. A second hard layer is provided, which is superimposed on the elastic layer so as to sandwich the elastic layer between the first hard layer and the elastic layer, and is harder than the elastic layer. The closure device according to claim 1, wherein the second hard layer has at least one second opening at a position overlapping with the slit.

4. A housing box body having an opening for drawing in a long object and capable of housing at least one of the equipment and power supply to which the long object is connected, A storage box comprising a closing device according to any one of claims 1 to 3 for closing the aforementioned opening.

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