JP5319459B2 - Airtight cover - Google Patents

Description

  The present invention relates to an airtight cover that accommodates a wiring device installed on a wall of a building.

  For example, a lightweight partition wall as a building wall is constructed by erecting a wall material (for example, a gypsum board) so as to sandwich a lightweight steel material. In the lightweight partition wall, a hollow portion is formed between a pair of wall materials, and a heat insulating member such as a foamed polystyrene plate, glass wool, or a hard foamed urethane plate is disposed in the hollow portion. For example, in order to improve indoor heating and cooling efficiency, an airtight sheet such as a polyethylene film is provided on the indoor side of the heat insulating member in the hollow portion so as to cover the heat insulating member. By this airtight sheet, the circulation between the outside air and the inside air is blocked, and the airtightness is improved, thereby improving the cooling and heating efficiency.

  In addition, in order to install the wiring device on the lightweight partition wall, a bottomed square box-like wiring box having an opening on one side is installed on the back side of the lightweight partition wall. In addition, in order to prevent a decrease in airtightness due to the installation of the wiring box, an airtight cover is installed on the back side of the lightweight partition wall, and the wiring box is housed in the airtight cover. And as such an airtight cover, the airtight member of patent document 1 is mentioned, for example.

  The airtight member described in Patent Document 1 is integrally formed with a storage portion formed in a substantially box shape that opens on one surface, and a flange portion that protrudes outwardly in the outer peripheral direction at the opening edge of the storage portion. Has been. When the airtight member is installed, an airtight sheet is airtightly attached to the flange portion with an airtight tape. And between the flange portion and the airtight sheet is sealed with an airtight tape, and as a result of blocking the air flow between the flange portion and the airtight sheet, the flow between the outside air and the inside air through the wiring box is blocked, A decrease in airtightness is prevented.

JP-A-8-302838

  However, as shown in FIG. 1 and FIG. 2 of Patent Document 1, when an airtight sheet is attached to the flange portion, a plurality of airtight tapes are attached to the flange portion and the airtight sheet so that the ends of the airtight tape overlap each other. Has been. For this reason, in the overlapping part of the airtight tape, it is difficult to stick the airtight tape along the edge of the airtight tape, and a gap is formed at a position along the edge of the airtight tape. Then, due to this gap, there is a problem that the airtight sheet cannot be reliably attached to the flange portion, and the airtightness is lowered even if the flange portion and the airtight sheet are adhered by the airtight tape.

  The present invention has been made paying attention to such problems existing in the prior art. The object is to provide a hermetic cover that can prevent a decrease in hermeticity due to adhesion of a hermetic tape.

In order to solve the above-mentioned problems, the invention according to claim 1, the wiring apparatus installed on the wall of the building is accommodated inside, and a transparent or translucent airtight sheet provided on the back side of the wall is provided. An airtight cover that is airtightly attached to the cover, and includes a cover body that has an opening on one side and is formed in a bottomed box shape that can accommodate the wiring device from the opening. A transparent or translucent flange portion formed in an annular shape extending from the entire periphery of the opening edge toward the outside of the cover body is provided, and the flange portion has a color other than white formed in an endless annular shape over the entire periphery. The gist of the present invention is that an airtight tape is attached and an annular adhesive portion is formed on the flange portion by the airtight tape.

  The gist of the invention according to claim 2 is that, in the airtight cover according to claim 1, the sticking part is covered with a release sheet, and a grip part is provided on the release sheet.

  According to a third aspect of the present invention, in the airtight cover according to the second aspect, the grip portion is provided so as to extend from the outer peripheral edge of the release sheet and not to protrude from the outer peripheral edge of the flange portion. It is a summary.

  According to a fourth aspect of the present invention, in the airtight cover according to the second aspect, the airtight tape is adhered to the surface of the cover body on the opening side of the flange portion, and the gripping portion is the The gist is that it extends from the inner peripheral edge of the release sheet toward the opening.

  The gist of the invention described in claim 5 is the airtight cover according to claim 4, wherein the grip portion extends beyond the inner peripheral edge of the flange portion and reaches the inside of the opening portion.

According to a sixth aspect of the present invention, in the airtight cover according to the second aspect, the airtight tape is adhered to a surface on the bottom wall side of the cover main body in the flange portion, and the gripping portion is separated from the peeling portion. The gist is that the sheet extends from the inner peripheral edge of the sheet toward the bottom wall of the cover body .

The gist of the invention according to claim 7 is the airtight cover according to any one of claims 2 to 6, wherein the release sheet is a single sheet formed in an annular shape .

The gist of an eighth aspect of the present invention is that in the hermetic cover according to any one of the first to seventh aspects, the airtight tape is formed in an opaque dark color.

  According to the present invention, it is possible to prevent a decrease in airtightness due to adhesion of an airtight tape.

The perspective view which shows the airtight cover and wiring box of embodiment. The perspective view which shows an airtight cover and a peeling sheet. The perspective view which shows the installation state of an airtight cover and a wiring box. Sectional drawing which shows the installation state of an airtight cover and a wiring box. The perspective view which shows another example of an airtight cover and a peeling sheet. Sectional drawing which shows the installation state of the airtight cover of another example. The fragmentary perspective view which shows another example of a peeling sheet. The fragmentary perspective view which shows another example of a holding part. The fragmentary perspective view which shows another example of a holding part.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
First, the wall W of a building is demonstrated. As shown in FIGS. 3 and 4, the wall W is constituted by a column 31 and a pair of wall members 32 erected on both front and rear surfaces of the column 31. A hollow portion 33 is formed between the pair of wall members 32, and a heat insulating member (not shown) such as a foamed polystyrene plate, glass wool, or a hard foamed urethane plate is provided in the hollow portion 33. Further, a transparent airtight sheet 34 such as a polyethylene film is provided in the hollow portion 33 on the indoor side of the heat insulating member so as to cover the heat insulating member.

  Next, the wiring box 11 used for installing the wiring device S on the wall W will be described. As shown in FIG. 1, the wiring box 11 is formed in the shape of a bottomed square box having an opening on one surface (surface) of a synthetic resin material. Specifically, the wiring box 11 includes a rectangular bottom wall 12, a pair of short side walls upper and lower walls 13 a and 13 b that are opposed to the top and bottom of the bottom wall 12, and a pair of left and right sides of the bottom wall 12. The right side wall 13c and the left side wall 13d are long side walls.

  Two cable insertion holes 15 are formed in the upper side wall 13a and the lower side wall 13b. One cable insertion hole 15 is closed by a knock part 14, and the other cable insertion hole 15 is not formed with a knock part 14 and is opened. A boss portion 19 used for attaching the wiring device S to the wiring box 11 is formed on the inner surfaces of the upper side wall 13a and the lower side wall 13b. On the outer surface of the left side wall 13d, when the wiring box 11 is fixed to the column 31, a contact seat portion 17 is provided to contact the side surface of the column 31. The contact seat portion 17 has a plurality of screw holes 18. (Three in the embodiment) are formed.

Next, the airtight cover 20 will be described.
The hermetic cover 20 is made of a synthetic resin that is transparent and flexible, such as polypropylene, and is molded into a predetermined shape by press molding or vacuum molding. The cover main body 21 of the airtight cover 20 is formed in a bottomed square box shape having an opening 21a on one surface (front surface). The cover body 21 includes a rectangular bottom wall 22, a pair of upper and lower side walls 23a and 23b that are vertically opposed to the bottom wall 22, a right side wall 23c that is a pair of long side walls that are opposed to the left and right, and The left side wall 23d is formed. Two cable insertion portions 27 are formed on the upper side wall 23a and the lower side wall 23b. The cable insertion portion 27 is opened for the first time when the cable 28 (see FIG. 3) is inserted, and is closed when the cable 28 is not inserted. The cover body 21 is formed so as to widen the opening width in the long side direction and the short side direction of the cover body 21 as it goes from the bottom wall 22 toward the opening 21a.

  As shown in FIG. 2, the cover body 21 is formed to have a size that can accommodate the wiring box 11 from the opening 21 a and covers the entire outer surface of the wiring box 11 housed in the cover body 21. Yes. The opening width in the left-right direction of the cover body 21 is wider than the box width from the outer surface of the right side wall 13c of the wiring box 11 to the outer surface of the left side wall 13d. The depth of the cover main body 21 is such that the open end of the wiring box 11 protrudes from the open surface of the cover main body 21 when the outer surface of the bottom wall 12 of the wiring box 11 is in contact with the inner surface of the bottom wall 22 of the cover main body 21. It is set not to.

  A square ring-shaped flange portion 26 is integrally formed on the entire circumference of the opening edge of the opening 21 a in the cover body 21. The flange portion 26 is formed so as to extend from the entire circumference of the opening edge of the opening portion 21 a toward the outside of the cover main body 21. And since the flange part 26 is integrally molded by the flexible cover main body 21, it forms so that it can tilt toward the bottom wall 22 side or the side away from the bottom wall 22 centering on the base end. .

  As shown in FIG. 1, an airtight tape 29 is attached to the surface (surface) of the cover body 21 on the opening 21 a side in the flange portion 26. The airtight tape 29 is formed in an endless square ring extending along the flange portion 26. The airtight tape 29 is formed so that the width thereof is shorter than the width of the flange portion 26, and is adhered to the flange portion 26 so as to be within the width of the flange portion 26. The airtight tape 29 extends over the entire circumference of the flange portion 26. The airtight tape 29 is made of a double-sided tape whose both surfaces are adhesive surfaces, and both surfaces are formed in black over the entire surface. Here, in the present embodiment, “black” means a color that can be generally determined as a dark color (dark color), and includes an airtight tape 29 formed of black and transparent.

  The airtight tape 29 has one adhesive surface adhered airtightly to the surface of the flange portion 26, and the other adhesive surface of the airtight tape 29 forms an adhesive portion of the flange portion 26. As shown in FIG. 2, when the airtight cover 20 is not used, the entire other adhesive surface (adhered portion of the flange portion 26) of the airtight tape 29 is covered with the release sheet 30. The release sheet 30 is formed in the same endless square ring shape as the airtight tape 29. Further, a grip portion 30a that can be gripped with a finger is provided from the inner peripheral edge of the release sheet. The grip portion 30 a extends in a slender shape beyond the inner peripheral edge of the flange portion 26 (opening edge of the cover body 21) to a position reaching the inside of the opening portion 21 a of the cover body 21. 30a can be grasped with fingers from both front and back sides.

Next, a method for installing the wiring device S on the wall W using the airtight cover 20 will be described.
First, as shown in FIG. 3, the airtight cover 20 is disposed so that the gripping portion 30 a of the release sheet 30 extends downward from the upper portion of the airtight cover 20, and the left rear surface of the flange portion 26 is the front side of the column 31. Place it so that it is located in Next, the wiring box 11 is accommodated in the cover body 21, and a fixing screw (not shown) is inserted into the screw hole 18 of the wiring box 11, and the fixing screw is passed through the left side wall 23 d of the airtight cover 20 to the column 31. Force to screw. Then, the airtight cover 20 is fixed to the pillar 31 and the wiring box 11 is fixed to the pillar 31 in a state of being accommodated in the airtight cover 20. At this time, the wiring box 11 is fixed to the column 31 so as to be positioned on the lower side in the cover main body 21, the gripping portion 30a is positioned above the wiring box 11, and the wiring box 11 is located behind the gripping portion 30a. Does not exist.

  Next, the cable 28 is inserted into the airtight cover 20 through the cable insertion portion 27, and the cable 28 inserted into the airtight cover 20 is further inserted into the wiring box 11 through the cable insertion hole 15. Next, the release sheet 30 adhered to the airtight tape 29 is peeled from the airtight tape 29 while holding the gripping portion 30a, and the other adhesive surface of the airtight tape 29 is exposed. That is, the sticking part of the flange part 26 is exposed.

  Next, a transparent airtight sheet 34 such as a polyethylene film is provided on the indoor side from the heat insulating member and the airtight cover 20. In addition, the thickness of the airtight cover 20, the airtight tape 29, and the airtight sheet | seat 34 shown in FIG. 4 is drawn exaggerating the thickness for convenience of explanation. The airtight sheet 34 is fixed to a part of the column 31 by, for example, a tucker or the like.

  Next, the entire adhesive surface of the exposed airtight tape 29 is attached to the back surface of the airtight sheet 34. At this time, since the flange portion 26 and the airtight sheet 34 are transparent and the adhesive surface of the airtight tape 29 is black, it is possible to visually recognize the state of the airtight tape 29 attached to the airtight sheet 34. When air bubbles can be visually recognized between the airtight sheet 34 and the airtight tape 29 at the time of visual recognition, the air bubbles are crushed by a finger or the like to be erased to ensure the air circulation between the outside and the inside of the airtight cover 20. Shut off.

  Next, the portion of the airtight sheet 34 covering the opening 21a of the cover body 21 is cut along the opening edge of the opening 21a, thereby opening the opening 21a toward the front side from the airtight sheet 34, and The wiring box 11 faces the front side from the airtight sheet 34. Here, on the outer peripheral side of the opening of the airtight sheet 34, the flange portion 26 and the airtight sheet 34 are attached by an endless square annular airtight tape 29. That is, the opening of the airtight sheet 34 is surrounded by a continuous airtight tape 29, and the airtight sheet 34 and the flange portion 26 are attached by the airtight tape 29. For this reason, air circulation between the outside and the inside of the airtight cover 20 is blocked by the airtight tape 29.

  Thereafter, the other wall member 32 is erected on the front side of the airtight cover 20 so as to sandwich the column 31, whereby the wall W is constructed and the wiring box 11 is installed in the hollow portion 33 in the wall W. Finally, a through hole corresponding to the opening of the wiring box 11 is formed in the wall member 32, the cable 28 is pulled out from the through hole to the front side of the wall member 32, and the cable 28 is connected to the wiring device S. Thereafter, the wiring device S is held in a wiring device mounting frame (not shown), the wiring device S is accommodated in the wiring box 11 in the airtight cover 20, and the wiring device mounting frame is further connected to the wiring box 11 using the boss portion 19. Attach to. As a result, the wiring device S is installed on the wall W.

According to the above embodiment, the following effects can be obtained.
(1) The airtight cover 20 includes an airtight tape 29 adhered to the flange portion 26, and an adhesive portion is formed on the surface of the flange portion 26 by the airtight tape 29. And since this airtight tape 29 is formed in the endless square ring shape along the flange part 26, the part which the edge parts of the airtight tape 29 overlaps is not formed. Therefore, the continuous airtight tape 29 is used to ensure airtightness between the flange portion 26 and the airtight sheet 34, thereby blocking the air flow between the outside and the inside of the airtight cover 20, and preventing the airtightness from being lowered. Can do.

  (2) The airtight tape 29 is formed as a single piece having an endless square ring shape. For this reason, for example, compared with the case where a plurality of airtight tapes are used as in the background art, the work of attaching the airtight tape 29 to the flange portion 26 can be easily performed.

  (3) The other adhesive surface of the airtight tape 29 is covered with a release sheet 30, and a grip portion 30 a is integrally provided on the release sheet 30. And the peeling sheet 30 can be peeled from an adhesive surface, holding the holding part 30a with a finger | toe. The airtight tape 29 is formed in an endless square ring. For this reason, since the part where peeling sheets mutually overlap is not formed like the case where several airtight tapes are used like background art, the operation | work which peels the peeling sheet 30 from an adhesive surface is performed easily. be able to.

  (4) The release sheet 30 is formed in an endless square ring so as to cover the adhesive surface of the airtight tape 29 with one sheet. Therefore, for example, compared with the case where the adhesive surface of the airtight tape 29 is covered with a plurality of release sheets, the work of peeling the release sheet 30 from the adhesive surface can be easily performed.

  (5) An airtight tape 29 is attached to the flange portion 26 over the entire circumference of the flange portion 26, and the adhesive surface of the airtight tape 29 is formed in black. Therefore, even if air bubbles are formed between the airtight sheet 34 and the airtight tape 29, the air bubbles float on the black airtight tape 29, and the presence or absence of air bubbles can be easily visually confirmed. Therefore, at the time of the operation of attaching the airtight tape and the airtight sheet 34, the bubbles can be surely erased. As a result, it is possible to prevent a decrease in airtightness due to the installation of the wiring box 11 while blocking the air flow between the outside and inside of the airtight cover 20 by the airtight tape 29.

  (6) The airtight tape 29 is formed in black over the entire adhesive surface. Therefore, even if air bubbles are formed between the airtight sheet 34 and the airtight tape 29, the pressure-sensitive adhesive surface of the airtight tape 29 is compared with the case where the adhesive surface is formed in white or light color (for example, light red or light yellow). Thus, the presence or absence of bubbles can be easily visually confirmed.

  (7) By providing the airtight cover 20 with the flange portion 26 and attaching the airtight tape 29 attached to the flange portion 26 to the airtight sheet 34, communication between the outside and the inside of the airtight cover 20 can be blocked. it can. Therefore, in order to block communication between the outside and the inside of the hermetic cover 20, the hermetic cover is provided even when the wall material 32 is not erected as in the case where the packing is sandwiched between the wall material 32 and the flange portion 26. Communication between the outside and inside 20 can be blocked.

  (8) In a state where the airtight cover 20 is attached to the column 31, the grip portion 30 a extends from the upper part of the airtight cover 20 to the inside of the cover main body 21 beyond the inner peripheral edge of the flange portion 26. The wiring box 11 is fixed to the column 31 so as to be positioned below the hermetic cover 20, the gripping portion 30 a is positioned above the wiring box 11, and the space inside the cover main body 21 is behind the gripping portion 30 a. Is spreading. For this reason, when gripping the grip portion 30a, the wiring box 11 does not get in the way, and a finger can be inserted to the back side of the grip portion 30a, so that the grip portion 30a can be easily gripped from both the front and back sides.

  (9) When carrying the airtight cover 20, if the gripping portion 30a protrudes from the outer peripheral edge of the release sheet 30 toward the outside of the flange portion 26, the gripping portion 30a is caught by an obstacle or the like and peeled off. The sheet 30 may be peeled off from the airtight tape 29. However, the airtight tape 29 is adhered to the surface of the cover body 21 on the opening 21a side in the flange portion 26, and the gripping portion 30a extends from the inner peripheral edge of the release sheet 30 to the inside of the opening 21a. . Therefore, it is possible to prevent the inconvenience that the gripping portion 30a is caught by an obstacle and the release sheet 30 is peeled off from the airtight tape 29.

In addition, you may change the said embodiment as follows.
In the embodiment, the color of the adhesive surface of the airtight tape 29 is not limited to black, and may be, for example, blue, green, purple, etc., which are cold colors, or red, yellow, etc., which are warm colors. It may be. Note that these colors are dark blue, dark green, dark purple, dark red, dark yellow, etc. that can easily recognize that air bubbles are formed between the airtight sheet 34 and the airtight tape 29. preferable.

-In embodiment, although the airtight tape 29 is formed in black on both front and back, it is not restricted to this, Only the adhesion surface to which the airtight sheet 34 is affixed may be formed in black.
In the embodiment, the cover body 21 and the flange portion 26 are both formed transparently in the airtight cover 20, but not limited thereto, for example, only the flange portion 26 may be formed transparently.

-In embodiment, the flange part 26 may be formed translucently. In this case, the cover body 21 may be transparent or translucent.
-In embodiment, although the airtight cover 20 is formed transparently, not only this but the airtight cover 20 whole may be formed translucently.

-The airtight sheet | seat 34 may be formed translucently.
The adhesive surface of the airtight tape 29 may be covered with a plurality of release sheets 30. In this case, it is preferable to form the grip part 30a on at least one release sheet 30, and it is more preferable that the grip part 30a is formed on all the release sheets 30.

  As shown in FIG. 5, even in the flange portion 26, even if the airtight tape 29 is adhered to the bottom wall 22 side surface (back surface) of the cover body 21, and the release sheet 30 is adhered to the airtight tape 29. Good. In this case, the grip portion 30a is preferably provided so as to extend from the inner peripheral edge of the release sheet 30 toward the bottom wall 22 of the cover body 21, and the grip portion 30a is provided on the left side wall 23d of the cover body 21. It is preferable that it is located near and is within the width of the flange portion 26. Furthermore, it is preferable that the grip portion 30 a does not protrude from the outer surface of the bottom wall 22 in the extending direction from the flange portion 26 toward the bottom wall 22.

  As shown in FIG. 6, when using such an airtight cover 20, first, the wiring box 11 is fixed to the pillar 31, and a wall member 32 is erected on the front side of the wiring box 11. The wiring box 11 faces the front side of the wall member 32 from the through hole of the wall member 32. Thereafter, the cover main body 21 is accommodated inside the wiring box 11, and only the flange portion 26 is disposed on the front side of the wall material 32, and the back surface of the flange portion 26 and the surface of the wall material 32 are hermetically sealed by an airtight tape 29. Affixed.

  As shown in FIG. 7, in the release sheet 30 of the embodiment, a notch 30 b or a perforation may be formed on the proximal end side of the gripping portion 30 a so as to cross the entire width direction of the release sheet 30. If comprised in this way, when holding | griping the holding part 30a and peeling the release sheet 30 from the airtight tape 29, while being able to prevent only the holding part 30a from tearing off the release sheet 30, it is possible to prevent the release sheet 30 as a whole. Can be peeled smoothly.

  As shown in FIG. 8, a part (corner part) of the release sheet 30 is peeled in advance from the airtight tape 29, and the part peeled in advance is defined as a grip part 30a. In this case, the airtight tape 29 is formed so as to be within the width of the flange portion 26, and the grip portion 30 a extends from the outer peripheral edge of the release sheet 30 toward the outside of the flange portion 26. Provide to fit within the width. When the airtight cover 20 is transported, if the grip portion 30a protrudes from the outer peripheral edge of the release sheet 30 toward the outside of the flange portion 26, the grip portion 30a is caught by an obstacle or the like and the release sheet 30 is The airtight tape 29 may be peeled off. However, the airtight tape 29 does not protrude outward from the outer peripheral edge of the flange portion 26, and is contained within the width of the flange portion 26. Therefore, it is possible to prevent the inconvenience that the gripping portion 30a is caught by an obstacle and the release sheet 30 is peeled off from the airtight tape 29.

  In addition, the airtight tape 29 is provided so as to be within the width of the flange portion 26, and the grip portion 30a is formed so as to extend from the inner peripheral edge of the release sheet 30 toward the opening portion 21a. At this time, the gripping portion 30a is positioned within the width of the flange portion 26 so as not to cross the inner peripheral edge of the flange portion 26 toward the opening portion 21a. In this case, the airtight tape 29 does not exist on the back side of the grip portion 30a. And as for the holding | grip part 30a, it is preferable that the width | variety along the circumferential direction of the peeling sheet 30 is wider than the width | variety along the width direction of the peeling sheet 30. FIG.

  When configured in this manner, the endless square annular airtight tape 29 and the release sheet 30 secure a part that forms an endless square ring from a sheet-like one in which release paper is stuck to a double-sided tape, and the other parts are discarded. Is formed. Therefore, by forming the grip portion 30a so as to extend from the inner peripheral edge of the release sheet 30 toward the opening portion 21a, it is possible to reduce the discard amount of the sheet.

In addition, while forming the grip portion 30a, the width of the airtight tape 29 in the width direction is not shortened, and the grip portion 30a is easily gripped with a finger.
As shown in FIG. 9, the grip portion 30 a may be bent in the cover main body 21 so as to extend toward the bottom wall 22 from a portion facing the inner peripheral edge of the flange portion 26. When comprised in this way, at the time of conveyance of many airtight covers 20, airtight covers 20 are overlapped so that another cover main body 21 may be accommodated in the cover main body 21. At this time, if the grip portion 30 a is bent toward the bottom wall 22, the grip portion 30 a is prevented from becoming an obstacle when the airtight cover 20 is overlapped.

  The installation order of the wiring box 11 and the airtight cover 20 is not limited to the embodiment, and may be changed as follows. First, after fixing only the airtight cover 20 to the column 31 and drawing the cable 28 into the cover body 21 from the cable insertion portion 27 of the airtight cover 20, the airtight sheet 34 is provided on the front side of the airtight cover 20, and the airtight tape 29 is provided. Thus, the front surface of the flange portion 26 and the back surface of the airtight sheet 34 are adhered in an airtight manner. Then, the part which covers the opening part 21a of the cover main body 21 in the airtight sheet | seat 34 is cut off along the opening edge of the opening part 21a, and the opening part 21a is opened toward the front side from the airtight sheet | seat 34. FIG. Next, the wiring box 11 is accommodated in the cover body 21 and the wiring box 11 is fixed to the column 31. In this case, the timing of attaching the flange portion 26 and the airtight sheet 34 by the airtight tape 29 may be arbitrarily changed.

  The installation order of the wiring box 11 and the airtight cover 20 is not limited to the embodiment, and may be changed as follows. First, an airtight sheet 34 is provided on the front side of the column 31 in a state where the cable 28 is wired, and a predetermined position of the airtight sheet 34 is opened. Thereafter, the hermetic cover 20 and the wiring box 11 are arranged on the back side of the hermetic sheet 34, and the hermetic cover 20 is fixed to the pillar 31 together with the wiring box 11. At this time, as in the embodiment, if the airtight tape 29 is adhered to the surface (front surface) of the flange portion 26 on the side where the opening portion 21a is opened, the flange portion 26 is disposed on the back side of the airtight sheet 34, The front surface of the flange portion 26 and the back surface of the airtight sheet 34 are adhered by the tape 29. On the other hand, as shown in FIG. 5, if the airtight tape 29 is adhered to the bottom wall 22 side surface (back surface) of the flange portion 26, the flange portion 26 is disposed on the front side of the airtight sheet 34 and the airtight tape 29. Thus, the back surface of the flange portion 26 and the surface of the airtight sheet 34 are attached. In this case, the timing of attaching the flange portion 26 and the airtight sheet 34 by the airtight tape 29 may be arbitrarily changed.

  The installation order of the wiring box 11 and the airtight cover 20 is not limited to the embodiment, and may be changed as follows. First, only the wiring box 11 is fixed to the column 31 and the cable 28 is drawn into the wiring box 11. Next, an airtight sheet 34 is provided on the front side of the wiring box 11 and a predetermined position of the airtight sheet 34 is opened. Next, after removing the wiring box 11 from the pillar 31, the airtight cover 20 is fixed and arranged on the back side of the airtight sheet 34, the wiring box 11 is accommodated in the cover body 21, and the wiring box 11 is again attached to the pillar 31. The cable 28 may be pulled into the wiring box 11. In this case, the time for attaching the flange portion 26 and the airtight sheet 34 by the airtight tape 29 may be any time.

-In embodiment, you may change arbitrarily the sticking time of the flange part 26 and the airtight sheet | seat 34 by the airtight tape 29. FIG.
-In embodiment and each modification, the holding | grip part 30a may not be integrally formed in the peeling sheet 30, but you may provide a separate holding | grip part by sticking to the peeling sheet 30, etc.

  The position, number, size, and the like of the grip portion 30a are not limited to the embodiment, and for example, a plurality of grip portions 30a may be provided along the flange portion 26 so as to cover the entire opening portion 21a of the cover body 21. It may be large.

-In embodiment, the holding part 30a may be formed so that it may extend toward the outward of the flange part 26 from the outer periphery of the peeling sheet 30. FIG.
In the embodiment, the airtight cover 20 that accommodates the wiring box 11 in which a pair of boss portions 19 are formed is embodied. However, the airtight cover can accommodate the wiring box 11 in which a plurality of pairs of boss portions 19 are arranged in parallel. It may be embodied in the following type. In this case, the airtight cover may be changed to a square shape, a horizontal rectangular shape, or the like according to the shape of the wiring box 11 or the shape and arrangement of the wiring device to be accommodated.

  S ... Wiring device, W ... Wall, 20 ... Airtight cover, 21 ... Cover body, 21a ... Opening part, 22 ... Bottom wall, 26 ... Flange part, 29 ... Airtight tape, 30 ... Release sheet, 30a ... Gripping part, 34 ... an airtight sheet.

Claims (8)

An airtight cover that houses wiring equipment installed on the wall of a building inside and is airtightly attached to a transparent or translucent airtight sheet provided on the back side of the wall ,
A cover body having an opening on one side and a bottomed box shape capable of accommodating the wiring device from the opening is provided, and from the entire periphery of the opening edge of the opening toward the outside of the cover body A transparent or translucent flange portion formed in an annular shape extending,
An airtight cover in which an airtight tape having a color other than white formed in an endless annular shape is attached to the flange portion, and an annular adhesive portion is formed in the flange portion by the airtight tape. .   The airtight cover according to claim 1, wherein the sticking portion is covered with a release sheet, and a grip portion is provided on the release sheet.   The airtight cover according to claim 2, wherein the grip portion is provided so as to extend from an outer peripheral edge of the release sheet and not to protrude from an outer peripheral edge of the flange portion.   The airtight tape is attached to a surface of the cover main body on the opening side in the flange portion, and the gripping portion extends from an inner peripheral edge of the release sheet toward the opening side. Airtight cover as described in.   The airtight cover according to claim 4, wherein the grip portion extends beyond the inner peripheral edge of the flange portion and reaches the inside of the opening. The airtight tape is adhered to a surface on the bottom wall side of the cover main body in the flange portion, and the grip portion extends from an inner peripheral edge of the release sheet toward a bottom wall of the cover main body. 2. The airtight cover according to 2.   The airtight cover according to any one of claims 2 to 6, wherein the release sheet is a single sheet formed in an annular shape. The airtight cover according to any one of claims 1 to 7, wherein the airtight tape is formed in an opaque dark color.

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