JP5513300B2 - Hermetic cover and installation method of hermetic cover - Google Patents

Description

  The present invention relates to a hermetic cover and a method for installing the hermetic cover.

  For example, a wiring device installed on a wall of a building is connected with a cable disposed on the back of the wall. Moreover, in order to ensure the airtightness accompanying installation of the wiring device, the wiring device is housed in an airtight cover. And as such an airtight cover, there exists a thing of patent document 1, for example.

  The dust-proof packing described in Patent Document 1 includes a box-shaped main body (cover main body) in which one surface is opened and a wiring device is accommodated, and a fixed flange plate (outward from the entire opening of the main body). Flange part). The bottom wall of the main body is provided with a plurality of electric wire insertion portions (retraction portions) for inserting electric wires (cables) in an airtight state.

  This dust-proof packing is inserted into a box disposed in the wall. In addition, a presser plate is disposed between the fixed flange plate of the dustproof packing and the fixture mounting frame (device frame) to which the outlet (device) is attached. Then, the fixing flange plate is brought into close contact with the opening end surface of the coating cover integrally provided on the opening surface side of the box, and the fixing flange plate is pressed against the wall by the pressing plate. Further, with the fixture mounting frame placed on the front side of the presser plate, the fixing screw inserted through the fixture mounting frame is fixed to the box through the presser plate and the dustproof packing. As a result, the indoor side and the inside of the box are blocked by the dust-proof packing, and dust that enters the inside of the box is prevented from entering the room. Further, a decorative plate (decorative cover) is fixed to the appliance mounting metal frame with a fixing screw, and a portion excluding the plug insertion port of the outlet and the presser plate are covered with the decorative plate.

JP 7-274346 A

  By the way, in the dustproof packing of Patent Document 1, the upper and lower portions of the fixing flange plate are fixed to the box by fixing screws that are inserted into the upper and lower portions of the fixture mounting frame to the box. Therefore, airtightness is ensured between the upper and lower portions of the fixed flange plate and the wall surface. However, the left and right portions of the fixed flange plate are not pressed against the wall surface by the fixing screws via the left and right portions of the fixture mounting frame. For this reason, there is a case where the right and left parts of the fixed flange plate are not in close contact with the wall surface and airtightness cannot be ensured.

  The present invention has been made paying attention to such problems existing in the prior art, the purpose of the flange portion, other than the portion pressed against the wall by the instrument frame using a fixing screw, An object of the present invention is to provide an airtight cover capable of ensuring airtightness between walls and an installation method of the airtight cover.

In order to achieve the above object, the invention according to claim 1 includes a cover body having an opening on one side and formed into a bottomed box shape capable of accommodating an appliance installed on a wall of a building, An annular flange portion extending outwardly from the entire periphery of the opening edge of the cover body, and the cover body is inserted into a wall hole formed in the wall and the flange portion is formed on the wall surface. It is an airtight cover that is disposed on the periphery of the wall hole and is further used by disposing an instrument frame that holds the instrument on the surface side of the flange part, and the flange part is installed behind the wall. A pair of insertion parts through which a fixing screw for attaching the instrument frame to the instrument frame mounting body is inserted so as to sandwich the opening, and the instrument frame mounting body of the instrument frame by the fixing screw is provided in the flange portion. Take to By only the portion of the flange portion is pressed against the wall by the instrument frame with the clamped between the wall and the appliance frame, attaching to sites was non pressed against the wall and other parts A release sheet is adhered to the wall-side adhesion surface of the adhesion part, and the release sheet is in a state where a part of the flange portion is sandwiched between the wall and the instrument frame. The release sheet extends outward from the flange portion and includes a grip portion that can be gripped by a hand, and the flange portion is tiltable from a base end. The gist is to have at least one of the above.

  The gist of the invention according to claim 2 is that, in the invention according to claim 1, the sticking portion is provided on the back surface of the flange portion located on both sides of the straight line connecting the pair of insertion portions. To do.

According to a fourth aspect of the present invention, there is provided a cover body formed in a bottomed box shape having an opening on one side and capable of accommodating an appliance installed on a wall of a building, and the entire circumference of the opening edge of the cover body An airtight cover installation method comprising: an annular flange portion extending outward from the wall body, wherein the cover body is inserted into a wall hole formed in the wall and the flange portion is disposed on the wall surface. A part of the flange part is arranged on the peripheral edge of the wall hole, an instrument frame holding the instrument is arranged on the surface side of the flange part, and the instrument frame is fixed to an instrument frame attachment body arranged on the back of the wall. After the sheet is sandwiched between the wall and the instrument frame, the release sheet covering the adhesion part is peeled off from the adhesion part provided in the part that is not pressed against the wall by the instrument frame on the back surface of the flange part, Adhering part to the wall hole periphery of the wall And it is required to wear.

The invention according to claim 5 is the cover body according to claim 4 , wherein a pair of fixing screws for attaching the instrument frame to the instrument frame attachment body installed on the back of the wall is provided in the cover body in the flange portion. The fixing screw is fixed to the instrument frame mounting body, and the flange portion is pressed against the wall by the fixed instrument frame. Tilting a portion not pressed against the wall, peeling the release sheet from the sticking portion provided at the tilted portion, and sticking the sticking portion to the peripheral edge of the wall hole of the wall; The gist.

The invention according to claim 6 is the invention according to claim 4 or 5 , wherein the release sheet attached to an attachment portion provided in a portion not pressed against the wall by the instrument frame. The gist of the invention is that the gripping portion that extends outward from the flange portion and that can be gripped by a hand is gripped by hand, and the release sheet is peeled from the sticking portion.

  According to this invention, airtightness between the flange portion and the wall can be ensured at a portion other than the portion pressed against the wall by the instrument frame using the fixing screw.

The perspective view which shows the airtight cover, wiring box, instrument frame, and decorative cover in embodiment. The top view of the airtight cover which looked at the airtight cover from the front side. AA line sectional view in FIG. (A) is a perspective view which shows the state which hold | gripped the holding part, (b) is a perspective view which shows the state which has peeled the peeling sheet. The front view which shows the state by which the airtight cover was stuck by the double-sided tape. Sectional drawing which shows the installation state of a switch.

  Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. Moreover, in this embodiment, in order to install the switch S as an instrument on the wall W, a wiring box 11 as an instrument frame attachment body is used, and an airtight cover 41 is disposed in the wiring box 11. .

First, the wall W of a building is demonstrated.
As shown in FIG. 6, the wall W is constituted by a column H and a pair of wall members W <b> 1 erected on both front and rear sides of the column H. A hollow portion K is formed between the pair of wall materials W1, 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 K. A cable (not shown) is disposed in the hollow portion K.

Next, the wiring box 11 used for installing the switch 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 the surface (one 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. And the accommodating part 14 is enclosed and formed by the bottom wall 12 and the four side walls 13a-13d.

  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 portion 16, and the other cable insertion hole 15 is opened without forming the knock portion 16. Boss portions 17 used for attaching the switch S to the wiring box 11 are formed on the inner surfaces of the upper side wall 13a and the lower side wall 13b at positions facing each other. A boss hole 17 a is formed in the boss portion 17. On the outer surface of the left side wall 13d, when the wiring box 11 is fixed to the column H, a contact seat portion 18 is provided so as to contact the side surface of the column H. The contact seat portion 18 has a plurality of screw holes 19. (Three in the embodiment) are formed.

Next, the instrument frame 21 that holds the switch S will be described.
The instrument frame 21 has a rectangular frame shape and includes a holding hole 22 for holding the switch S. In addition, a pair of screw insertion holes 23 are provided so as to sandwich the holding hole 22 on a center line L1 that passes through an intermediate point of the length in the short direction of the instrument frame 21 and extends in the longitudinal direction. Each screw insertion hole 23 is formed in a long hole shape extending in the short direction of the instrument frame 21, and the first screw as a fixing screw for attaching the instrument frame 21 to the wiring box 11 is formed in the screw insertion hole 23. B1 is inserted. Furthermore, circular screw holes 24 are formed on the outer sides of the screw insertion holes 23 on the center line L <b> 1 of the instrument frame 21. The second screw B2 is inserted into the screw hole 24 when the decorative cover C is attached to the instrument frame 21. The decorative cover C includes a decorative cover mounting plate 31 attached to the appliance frame 21 and a decorative cover main body 38 attached to the decorative cover mounting plate 31.

Next, the airtight cover 41 will be described.
The airtight cover 41 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 42 of the hermetic cover 41 is formed in a bottomed square box shape having an opening on the surface (one surface) and is sized to be accommodated in the accommodating portion 14 of the wiring box 11. Specifically, the cover main body 42 includes a rectangular bottom wall 43, a pair of short side walls facing the top and bottom of the bottom wall 43, an upper side wall 44 a and a lower side wall 44 b, and a pair of left and right sides of the bottom wall 43. The right side wall 44c and the left side wall 44d are long side walls. And the accommodating part 45 is enclosed and formed by the bottom wall 43 and the four side walls 44a-44d. The bottom wall 43 is formed with a plurality (15 in this embodiment) of lead-in portions 46 for drawing the cables into the cover main body 42 so as to bulge out toward the inside of the cover main body 42.

  A flange 47 having a quadrangular annular shape is integrally formed on the entire periphery of the opening edge of the cover body 42. The flange portion 47 is formed so as to extend from the entire periphery of the opening edge of the cover body 42 toward the outside of the cover body 42. Since the flange portion 47 is formed integrally with the cover body 42 having flexibility, the flange portion 47 is formed so as to be tiltable toward the bottom wall 43 side or the side away from the bottom wall 43 with the base end as a center.

  As shown in FIG. 2, in the flange portion 47, a pair of insertion holes as an insertion portion is provided on a center line L <b> 4 that passes through an intermediate point of the length of the cover main body 42 in the short direction and extends in the longitudinal direction. 48 is formed so as to sandwich the opening of the cover main body 42. Each insertion hole 48 has a circular shape, and the first screw B1 inserted through the screw insertion hole 23 of the instrument frame 21 is inserted into the insertion hole 48 when the instrument frame 21 is attached to the wiring box 11. It has become so.

  Then, as shown in FIG. 5, when the instrument frame 21 is attached to the wiring box 11 by the first screw B <b> 1, the upper and lower parts of the instrument frame 21 are superposed on the upper and lower parts of the flange portion 47. On the other hand, when the instrument frame 21 is attached to the wiring box 11 by the first screw B1, the right part of the instrument frame 21 is superposed on the opening edge side on the right part of the flange part 47 and on the left part of the flange part 47. The left part of the instrument frame 21 is not superposed.

  As shown in FIG. 2, a slit 48 a extending along the short direction of the cover body 42 is formed at the inner edge of each insertion hole 48. The first screw B1 inserted through the screw insertion hole 23 of the instrument frame 21 can be inserted into the slit 48a. In the flange portion 47, a protruding portion 49 as a position adjusting portion is provided on the outer side of each insertion hole 48 on the center line L 4 of the cover main body 42.

  As shown in FIG. 3, each protruding portion 49 protrudes in a covered cylindrical shape from the surface of the flange portion 47 toward the front side. Each projecting portion 49 is formed so as to be closed from the proximal end to the distal end of the front surface side of the flange portion 47, and the rear surface side of the flange portion 47 is open. The protrusion side end surface of each protrusion 49 is a flat surface. In addition, the diameter of each protrusion 49 is smaller than the diameter of each screw hole 24, and when the protrusion 49 is overlapped with the screw hole 24, the entire protrusion-side end surface of the protrusion 49 faces the screw hole 24. It is like that.

  Further, as shown in FIG. 2, on the left and right back surfaces of the flange portion 47 located on both sides of a straight line (center line L4) connecting the pair of insertion holes 48, a belt-like double-sided tape 50 (hatched in FIG. 2 is attached). Is attached so that the long side direction extends in the longitudinal direction of the cover main body 42. The double-sided tape 50 is affixed to the flange portion 47 at a position where it does not overlap with the left and right parts of the instrument frame 21 and does not interfere with the instrument frame 21 even when the instrument frame 21 is attached to the wiring box 11. It is worn. The double-sided tape 50 is continuously provided so that one end to the other end in the long side direction are within a range along the longitudinal direction of the flange portion 47. In addition, the double-sided tape 50 is attached to the flange portion 47 so that the short side direction is within the left and right side portions of the flange portion 47.

  The double-sided tape 50 has a sticking surface (back surface) on the flange portion 47 side attached to the back surface of the flange portion 47 and a release sheet 51 attached to the sticking surface (front surface) on the wall material W1 side. Yes. The release sheet 51 is adhered to the surface of the double-sided tape 50 so as to cover the entire surface of the double-sided tape 50. The length of the release sheet 51 along the short side direction is the same as the length of the double-sided tape 50 along the short side direction. Further, the length along the long side direction of the release sheet 51 is longer than the length along the long side direction of the double-sided tape 50, and one end of the release sheet 51 in the long side direction is the long side of the double-sided tape 50. The other end in the long side direction of the release sheet 51 is provided so as to extend to the same position as the other end in the long side direction of the double-sided tape 50. One end of the release sheet 51 is provided so as to extend outward from one end in the longitudinal direction of the flange portion 47, and the release sheet 51 is gripped when the release sheet 51 is peeled from the double-sided tape 50. A grip 52 is provided.

Next, a method for installing the airtight cover 41 having the above configuration will be described.
First, the contact seat 18 of the wiring box 11 is brought into contact with the side surface of the column H, and the wiring box 11 is arranged at a desired position with respect to the column H. At this time, the cable is drawn in advance into the wiring box 11 through the cable insertion hole 15. Next, a fixing screw (not shown) is inserted into the screw hole 19 and the fixing screw is forcibly screwed into the column H to fix the wiring box 11 to the column H. And the wiring box 11 is installed in the hollow part K in the wall W by standing the wall material W1 so as to sandwich the column H.

  Next, a vertically long oval wall hole W2 is formed at a position corresponding to the opening of the wiring box 11 in the wall material W1, and the inside of the wiring box 11 faces the front side of the wall material W1 through the wall hole W2. To. Next, the cable drawn into the wiring box 11 is pulled out from the wall hole W2 to the front side of the wall material W1. Next, the cable is forcibly inserted into the lead-in portion 46 from the back side of the airtight cover 41, and the cable is drawn into the cover main body 42. Then, the switch S is connected to the cable, and the switch S is held in the instrument frame 21.

  Next, the cable S is pulled from the back side of the airtight cover 41, and the switch S is inserted into the cover body 42 while pulling the cable drawn into the cover body 42 toward the wall hole W2. It arrange | positions at the surface side of the upper and lower parts of the flange part 47. FIG. Next, the cover main body 42 of the airtight cover 41 is inserted from the bottom wall 43 side toward the housing portion 14 of the wiring box 11 through the wall hole W2, and the cover main body 42 is housed in the wiring box 11 and the flange portion. The entire back surface of 47 is arranged on the periphery of the wall hole W2 of the wall material W1. At this time, the insertion hole 48 and the protruding portion 49 are positioned inside the wall hole W2.

  Subsequently, after adjusting the position of the instrument frame 21 so that the switch S does not tilt on the wall W surface, the first screw B1 is screwed into the boss hole 17a via the screw insertion hole 23, the insertion hole 48, and the wall hole W2. The instrument frame 21 is temporarily fixed to the wiring box 11 so that the instrument frame 21 does not move. Here, the movement of the airtight cover 41 is allowed without screwing the first screw B1 to the end with respect to the boss hole 17a and holding the flange portion 47 between the wall material W1 and the instrument frame 21. Keep it in a state.

  Next, the position of the airtight cover 41 is adjusted so that the entire protruding end surface of the protruding portion 49 faces the screw hole 24 of the instrument frame 21. Specifically, the position of the airtight cover 41 is forcibly moved and adjusted so that the protruding portion 49 of the airtight cover 41 is overlapped with the screw hole 24 of the instrument frame 21 by gripping the flange portion 47. Here, a slit 48 a is formed at the inner edge of each insertion hole 48. Therefore, even when the first screw B1 is inserted into the insertion hole 48, the first screw B1 enters the slit 48a, so that the airtight cover 41 is allowed to move.

  And if the protrusion part 49 overlaps with the screw hole 24 of the instrument frame 21, and it confirms that the whole protrusion side end surface of the protrusion part 49 faced from the screw hole 24, the 1st screw B1 will be made to the boss hole 17a. The device frame 21 is screwed to the end to fix the device frame 21 to the wiring box 11 and sandwich the upper and lower portions of the flange portion 47 between the wall material W1 and the upper and lower portions of the device frame 21. Thereby, while the flange part 47 is arrange | positioned in the predetermined position with respect to the instrument frame 21, both the upper and lower parts of the flange part 47 are closely_contact | adhered with the surface of wall material W1. Here, the “predetermined position” in the present embodiment means that the center line L4 of the airtight cover 41 is located on the center line L1 of the instrument frame 21, and the left and right edges of the flange portion 47 from the center line L1 of the instrument frame 21. It is a position where the distance to is the same. That is, the left and right side edges of the flange portion 47 are positions parallel to the side edges of the instrument frame 21.

  In a state where the flange portion 47 is disposed at a predetermined position with respect to the instrument frame 21, as shown in FIG. 4A, the grip portion 52 is gripped and the release sheet 51 is moved along the longitudinal direction of the flange portion 47. pull. Then, the flange portion 47 tilts toward the side away from the bottom wall 43 with the base end as the center, and the release sheet 51 can be peeled off from the double-sided tape 50 as shown in FIG. Then, after the release sheet 51 has been peeled off from the double-sided tape 50, the left and right portions of the flange portion 47 are pressed toward the wall material W1, thereby sticking the surface of the double-sided tape 50 to the wall hole W2 periphery of the wall material W1. . By sticking with this double-sided tape 50, as shown in FIG. 5, both the left and right portions of the flange portion 47 are brought into close contact with the surface of the wall material W1. As a result, the indoor side and the inside of the wiring box 11 are blocked by the airtight cover 41, and dusts that enter the wiring box 11 are prevented from entering the room through the wall hole W2.

  Next, as shown in FIG. 6, the decorative cover mounting plate 31 is arranged on the surface side of the appliance frame 21, and the decorative cover mounting plate 31 is attached to the appliance frame 21 by the second screw B2, and the decorative cover main body 38 is attached. It is attached to the surface side of the decorative cover attaching plate 31.

In the above embodiment, the following effects can be obtained.
(1) Double-sided tape 50 is adhered to both the left and right portions of the flange portion 47 that are not pressed against the wall material W1 by attaching the instrument frame 21 to the wiring box 11 with the first screw B1. . A release sheet 51 is attached to the attachment surface of the double-sided tape 50 on the wall material W1 side. Since the upper and lower parts of the flange part 47 are pressed against the wall material W1 by the upper and lower parts of the instrument frame 21 when the instrument frame 21 is fixed to the wiring box 11 by the first screw B1, the upper and lower parts of the instrument frame 21 are both Airtightness is ensured between the wall material W1 and the wall material W1. However, the left and right portions of the flange portion 47 are not pressed against the wall material W1 via the left and right portions of the instrument frame 21 by the first screw B1. However, in this embodiment, by sticking the surface of the double-sided tape 50 in a state where the release sheet 51 is peeled off to the periphery of the wall hole W2 of the wall material W1, the flange frame 47 is attached to the wall material W1 by the instrument frame 21. Even a portion that cannot be pressed can be brought into close contact with the wall material W <b> 1, and airtightness between the indoor side and the inside of the wiring box 11 can be ensured.

  (2) Since the left and right portions of the flange portion 47 to which the double-sided tape 50 is adhered are not pressed against the wall material W1 via the left and right portions of the instrument frame 21 by the first screw B1, the left and right portions of the flange portion 47 Both portions can be tilted toward the side away from the wall material W1 around the base end. Therefore, the operation of peeling the release sheet 51 by tilting the flange portion 47 can be performed.

  (3) In the release sheet 51, a grip portion 52 capable of gripping the release sheet 51 extends outward from the flange portion 47. Therefore, even when the instrument frame 21 is attached to the wiring box 11, the release sheet 51 can be attached to the double-sided tape simply by holding the holding part 52 and pulling the release sheet 51 along the longitudinal direction of the flange part 47. 50 can be peeled off.

  (4) Since the flange portion 47 is formed of a flexible thin synthetic resin, when the upper and lower portions of the flange portion 47 are fixed with the first screw B1, the left and right portions of the flange portion 47 are As the upper and lower portions of the flange portion 47 are pressed against the wall material W1, the flange portion 47 is easily bent and deformed so as to wave. However, by sticking the left and right portions of the flange portion 47 to the wall material W1 with the double-sided tape 50, it is possible to prevent undulating deformation and ensure airtightness.

In addition, you may change the said embodiment as follows.
In the embodiment, the first screw B1 is screwed to the end with respect to the boss hole 17a, and after the instrument frame 21 is fixed to the wiring box 11, the release sheet 51 is peeled off from the double-sided tape 50. Not exclusively. For example, without releasing the first screw B1 to the boss hole 17a to the end, the instrument frame 21 is temporarily fixed to the wiring box 11, and the release sheet 51 is moved in a state where the airtight cover 41 is moved to a predetermined position. The double-sided tape 50 may be peeled off, the surface of the double-sided tape 50 may be adhered to the periphery of the wall hole W2 of the wall material W1, and then the first screw B1 may be screwed to the boss hole 17a to the end. According to this, before the first screw B1 is screwed to the end with respect to the boss hole 17a, the flange portion 47 is adhered to the peripheral edge of the wall hole W2 of the wall material W1, so that the first screw B1 is When the instrument frame 21 is fixed to the wiring box 11 by being screwed to the end with respect to the hole 17a, the flange portion 47 can be prevented from being displaced. In this case, since both the upper and lower portions of the flange portion 47 are before being sandwiched between the upper and lower portions of the instrument frame 21 and the wall material W1, the upper and lower portions of the flange portion 47 are centered on the base end thereof. It can be tilted toward the side away from the bottom wall 43. Therefore, in addition to the left and right portions of the flange portion 47, the double-sided tape 50 is attached in advance to both the upper and lower portions of the flange portion 47, and the release sheet 51 is peeled off when the movement of the airtight cover 41 is allowed. Then, the surface of the double-sided tape 50 may be attached to the periphery of the wall hole W2 of the wall material W1. Further, in this case, the double-sided tape 50 attached to both the upper and lower portions and the left and right portions of the flange portion 47 may be formed as a single piece continuously over the entire circumference of the flange portion 47. .

  In the embodiment, the double-sided tape 50 is continuously provided so that one end to the other end in the long side direction is within the range along the longitudinal direction of the flange portion 47. A plurality of double-sided tapes 50 may be intermittently attached along the longitudinal direction of the portion 47.

  In the embodiment, the upper and lower portions of the flange portion 47 are formed so as to protrude outward from the upper and lower portions of the instrument frame 21, and the both upper and lower portions of the flange portion 47 are more than the upper and lower portions of the instrument frame 21. Alternatively, the double-sided tape 50 may be attached to a portion that protrudes outward and does not overlap with the instrument frame 21.

  In the embodiment, one end of the release sheet 51 was provided so as to extend outwardly beyond one end in the longitudinal direction of the flange portion 47, but not limited thereto, the other end of the release sheet 51 is The flange portion 47 may be provided so as to extend outward from the other end in the longitudinal direction.

  In the embodiment, one end of the release sheet 51 is provided to extend outwardly beyond one end in the longitudinal direction of the flange portion 47. However, the present invention is not limited thereto. In addition, the other end of the release sheet 51 may be provided so as to extend outwardly beyond the other end in the longitudinal direction of the flange portion 47. In this case, the other end of the release sheet 51 functions as a gripping part that holds the release sheet 51 when the release sheet 51 is peeled from the double-sided tape 50, as is the case with one end of the release sheet 51.

  In the embodiment, the end portions of the release sheet 51 may extend to opposite sides in the longitudinal direction of the flange portion 47. For example, one end of the release sheet 51 covering the double-sided tape 50 attached to the right rear surface of the flange portion 47 is provided so as to extend outward from one end in the longitudinal direction of the flange portion 47. On the other hand, the other end of the release sheet 51 that covers the double-sided tape 50 attached to the left rear surface of the flange portion 47 is provided so as to extend outward from the other end in the longitudinal direction of the flange portion 47. Yes.

  In the embodiment, one end of the release sheet 51 is provided so as to extend outward from one end in the longitudinal direction of the flange portion 47, but is not limited thereto. For example, you may provide the holding part extended until it protrudes outward from the edge part of the transversal direction of the flange part 47 from the middle of the long side direction of the peeling sheet 51. FIG. Then, the release sheet 51 is pulled out while holding the holding portion. Then, the peeling sheet 51 can be peeled from the double-sided tape 50 without tilting the flange portion 47 toward the side away from the wall material W1 with the base end as the center.

  In embodiment, although the double-sided tape 50 was used as an adhesion part, not only this but as an adhesion part, an adhesive material is apply | coated to the back surface of the flange part 47, and a protective sheet is applied to the part which apply | coated the adhesive material. You may use what covered. And when sticking the flange part 47 to wall material W1, a protective sheet is peeled off and used.

  The present invention is applied to the airtight cover 41 used when one instrument frame 21 in a state where the switch S is held is installed on the wall W. However, the present invention is not limited thereto, and two instrument frames 21 are provided on the wall W. You may apply to the airtight cover used when arranging in parallel above. In this case, the cover body 42 of the hermetic cover has a longitudinal direction along the left-right direction of the hermetic cover, a short direction along the vertical direction of the hermetic cover 41, and the switch S in the left-right direction. Each switch S is formed in such a size that it can be inserted into the cover main body 42 in a state of being arranged. Further, two or more pairs of insertion holes 48 are provided in the flange portion 47. And in the flange part 47, the double-sided tape 50 is stuck so that the long side direction may extend in the transversal direction of the cover main body 42.

  In the embodiment, the shape of the wall hole W2 formed in the wall material W1 is a vertically long oval shape. However, the shape is not limited to this. For example, a part of a vertically long rectangular shape, an oval shape, or a perfect circle may overlap. Two substantially bowl-shaped may be formed.

  In embodiment, although the wiring box 11 was applied as an instrument frame attachment body, you may apply the wiring instrument frame attachment frame which makes not only this but a rectangular frame shape as an instrument frame attachment body, for example.

  In embodiment, although the instrument attached to the instrument frame 21 was the switch S, it is not restricted to this, For example, an outlet socket and an alarm may be sufficient as the instrument attached to the instrument frame 21.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(A) The airtight cover according to claim 1 or 2, wherein the flange portion is provided with a position adjusting portion for aligning the flange portion with respect to the instrument frame.

  (B) The instrument frame attachment body is a wiring box, and the cover main body is accommodated in the wiring box, and any one of the technical ideas (a) The airtight cover according to claim 1.

  B1 ... First screw as a fixed screw, W ... Wall, W2 ... Wall hole, S ... Switch as instrument, 11 ... Wiring box as instrument frame attachment body, 21 ... Instrument frame, 41 ... Airtight cover, 42 ... Cover Main body 47... Flange portion 48. Insertion hole as insertion portion 49. Projection portion as position adjustment portion 50. Double-sided tape as sticking portion 51. Release sheet 52.

Claims (6)

A cover body formed in a bottomed box shape that has an opening on one side and can accommodate an appliance installed on the wall of the building, and an annular shape extending outward from the entire circumference of the opening edge of the cover body The cover body is inserted into a wall hole drilled in the wall, and the flange portion is disposed at a peripheral edge of the wall hole of the wall surface, and further on the surface side of the flange portion And an airtight cover in which an instrument frame holding the instrument is arranged and used,
In the flange portion, a pair of insertion portions through which a fixing screw for attaching the instrument frame to the instrument frame attachment body installed on the back wall is inserted so as to sandwich the opening,
In the flange portion, a part of the flange portion is pressed against the wall by the device frame by the attachment of the device frame to the device frame mounting body by the fixing screw, and is sandwiched between the wall and the device frame. In addition, an adhesive part is provided in a part that is not pressed against the wall in other parts, and a release sheet is attached to the adhesive surface on the wall side in the adhesive part,
In a state where a part of the flange portion is sandwiched between the wall and the instrument frame, the release sheet can be peeled off.
The release sheet extends outward from the flange portion and includes a grip portion that can be gripped by a hand, and at least one of the flange portion being tiltable from a proximal end. An airtight cover characterized by having.  The airtight cover according to claim 1, wherein the sticking portion is provided on a back surface of a flange portion located on both sides of a straight line connecting the pair of insertion portions. The hermetic cover according to claim 1 or 2, wherein a position adjusting portion for aligning the flange portion with respect to the instrument frame is provided on the flange portion. A cover body formed in a bottomed box shape that has an opening on one side and can accommodate an appliance installed on the wall of the building, and an annular shape that extends outward from the entire circumference of the opening edge of the cover body An installation method of an airtight cover comprising a flange portion,
The cover body is inserted into a wall hole drilled in the wall, the flange portion is disposed on the periphery of the wall hole of the wall surface, and an instrument frame holding the instrument is disposed on the surface side of the flange portion. Then, after fixing the instrument frame to the instrument frame mounting body arranged on the back wall and sandwiching a part of the flange portion between the wall and the instrument frame, the wall is formed by the instrument frame on the back surface of the flange portion. Installation of an airtight cover, wherein a release sheet covering the adhesive part is peeled off from an adhesive part provided in a portion that cannot be pressed against the wall, and the adhesive part is attached to the peripheral edge of the wall hole of the wall Method. A pair of fixing screws for attaching the instrument frame to the instrument frame mounting body installed on the back wall are inserted through the flange portion so as to sandwich the opening of the cover body, and the fixing screws are attached to the instrument frame. Fixed to the body, the flange portion is pressed against the wall by the fixed instrument frame, and a portion of the flange portion that is not pressed against the wall by the instrument frame is tilted and provided at the tilted portion. The installation method of the airtight cover of Claim 4 which peels the said peeling sheet from the said said sticking part, and sticks the said sticking part to the said wall hole periphery of the said wall. A gripping portion that extends outward from the flange portion of the release sheet that is stuck to a sticking portion provided in a portion that is not pressed against the wall by the instrument frame and that can be gripped by hand. in the grip to the installation method of the airtight cover according to claim 4 or claim 5, characterized in that peeling the release sheet from the adhesive portion.

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