JP2018003998A - Sealing method and seal member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing method and a seal member capable of improving waterproofness between a first opening part and an insertion member even if the work can be carried out only at one side against a first wall.SOLUTION: A sealing method for sealing a clearance between a first opening part 23 of a first wall 18 and an insertion member 12 inserted into the first opening part 23 is carried out in such a way that a seal member 1 comprising an elastic layer 2 formed with a through hole 9, an adhesive layer 3 arranged at the surface of the elastic layer 2 so as to enclose the through hole 9 and a release sheet 4 arranged at the surface of the adhesive layer 3 is passed from one side of a thickness direction of a first wall 18 through the first opening part 23 and is positioned with respect to the first wall 18 so as to assure a charging region 10 at the other side in the thickness direction of the first wall 18, the release sheet 4 is peeled off, the adhesive layer 3 is adhered to the other surface in the thickness direction of the first wall 18 and then the insertion member 12 is inserted into the first opening part 23 so as to cause the insertion member to be press-fitted into the through hole 9.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a sealing method and a sealing member, specifically, a sealing method suitably used for sealing a gap between a first opening of a first wall and an insertion member inserted into the first opening, and The present invention relates to a seal member used in the method.

  Conventionally, a waterproof structure that prevents water from entering between an opening that penetrates a wall of a building or the like and an insertion member that is inserted into the opening is known.

  In such a waterproof structure, a guide material having a cylindrical shape is assembled to the opening of the wall, an insertion member is inserted into the guide material, and a cushioning material is interposed between the guide material and the insertion member over the entire circumference. By mounting, the gap between the guide material and the insertion member is filled. A waterproof structure is known that completely fills the gap between the guide member and the insertion member by filling a sealing material from above the cushioning material (see, for example, Patent Document 1).

JP-A-2005-214247

  However, for example, when a waterproof structure is applied to a double-structured wall composed of two walls spaced apart, the work cannot be performed between the two walls, and the cushioning material is appropriately used. May not be able to place.

  In such a case, a gap is generated between the guide material and the cushioning material or between the insertion member and the cushioning material, the sealing material cannot be filled well, and the waterproof property cannot be secured. Connected.

  Accordingly, an object of the present invention is to provide a sealing method and seal capable of improving the waterproofness between the first opening and the insertion member even when the work can be performed only from one side with respect to the first wall. It is to provide a member.

  The present invention [1] seals the gap between the first opening that penetrates the thickness direction of the first wall and the insertion member that is smaller than the first opening and is inserted into the first opening. A sealing method for inserting an insertion member, which is the same as the outer diameter of the insertion member or smaller than the outer diameter of the insertion member, and is formed with a through-hole capable of press-fitting the insertion member A first step of preparing a sealing member comprising a layer, a pressure-sensitive adhesive layer disposed on the surface of the elastic layer so as to surround the through-hole, and a release sheet disposed on the surface of the pressure-sensitive adhesive layer; To pass from the one side in the thickness direction of the wall to the other side in the thickness direction of the first wall, the passing step for passing the first opening, the release sheet faces the other side in the thickness direction of the first wall As seen from the thickness direction, the through hole is located in the first opening, and the seal Positioning step for positioning the sealing member with respect to the first wall, peeling the release sheet, and releasing the adhesive layer so that a region filled with the sealing material is secured between the through hole and the first opening in the material A sealing method is provided that includes an attaching step of attaching to the other surface in the thickness direction of the first wall, and an inserting step of inserting the insertion member into the first opening so as to press fit into the through hole.

  According to such a sealing method, the sealing member is disposed on the other side in the thickness direction of the first wall from the one side in the thickness direction of the first wall through the first opening of the first wall. .

  And, after the sealing member is positioned with respect to the first wall so as to ensure a region filled with the sealing material between the through hole and the first opening, the release sheet is peeled off, It is affixed on the other surface in the thickness direction of the first wall.

  Therefore, the operator is positioned on the other side in the thickness direction of the first wall while being on the one side in the thickness direction with respect to the first wall, with respect to the other surface in the thickness direction of the first wall. Can be attached.

  As a result, the waterproofness between the first opening and the insertion member can be improved while the seal member can be attached to the first wall.

  In addition, when the operator is working from one side in the thickness direction with respect to the first wall, when the seal member after the insertion process is viewed from one side in the thickness direction of the first wall, the sealing material is removed. Only the region to be filled is exposed from the first opening.

  Therefore, a good finish when the first wall is viewed from one side in the thickness direction can be obtained.

  In the present invention [2], the second wall is opposed to the other side of the first wall in the thickness direction so as to be spaced apart, and the second wall overlaps the first opening when projected in the thickness direction. Between the first wall and the second wall having an opening is a space that can be operated only from the first opening and the second opening. In the insertion step, the insertion member is in the thickness direction of the second wall. The sealing method according to the above [1], which is inserted into the first opening so as to be press-fitted into the through hole from the other side of the second opening, is included.

  According to such a sealing method, it is possible to insert the seal member from one side of the first wall in the first direction to the other side so as to be positioned between the first wall and the second wall.

  Therefore, the sealing member can be disposed in a space where only the first opening and the second opening can work, and can be attached to the other surface of the first wall in the first direction.

  Further, since the insertion member is press-fitted into the through hole from the other side in the thickness direction of the second wall, the adhesive layer of the seal member is pressed against the other surface in the thickness direction of the first wall in the insertion step.

  As a result, since the seal member and the first wall can be more closely attached, further improvement in waterproofness can be achieved.

  According to the present invention [3], in the passing step, the sealing member is passed through the first opening in a bent state, and is restored from the bent state on the other side in the thickness direction of the first wall. The sealing method according to [1] or [2] is included.

  According to such a sealing method, a seal member having a size larger than that of the first opening can be passed through the first opening.

  Therefore, it is possible to further improve the waterproofness between the first opening and the insertion member.

  The present invention [4] further includes a partial peeling step in which the release sheet is partially peeled to partially expose the adhesive layer before the passing step, and in the positioning step, the partially exposed adhesive layer is provided. The sealing method according to any one of the above [1] to [3], which is attached to the other surface in the thickness direction of the first wall.

  According to such a sealing method, the position of the sealing member can be adjusted while sticking the partially exposed adhesive layer to the other surface in the thickness direction of the first wall.

  Therefore, the seal member can be easily positioned with respect to the first opening of the first wall.

  In the present invention [5], the release sheet includes a plurality of peeling portions that are sequentially arranged so as to surround the through hole with the through hole as a center, and is positioned at the outermost side among the plurality of peeling portions in the attaching step. The sealing method according to any one of [1] to [4] above, in which at least one of the peeling portions is peeled off.

  According to such a sealing method, it is possible to adjust the area of the adhesive layer to be attached to the other surface in the thickness direction of the first wall by adjusting the number of peeling portions to be peeled.

  Therefore, even when the sizes of the first openings are various, it is not necessary to prepare different types of seal members, so that the versatility of the seal members can be improved.

  According to the present invention [6], in the positioning step, as viewed from the thickness direction, either the inner periphery of the release sheet or the boundary portions of a plurality of adjacent peeling portions are made to coincide with the first opening. Thus, the sealing method according to the above [5], in which the sealing member is positioned with respect to the first wall is included.

  According to such a sealing method, from the one side in the thickness direction of the first wall, the first opening is visually observed, and either the inner periphery of the release sheet or the boundary portion between a plurality of adjacent peeling portions Can be positioned so as to match the first opening.

  Therefore, the seal member can be reliably positioned at an arbitrary position with respect to the first wall.

  The present invention [7] includes the sealing method according to the above [5] or [6], wherein the release sheet includes a connecting portion that partially connects a plurality of adjacent peeling portions. .

  According to such a sealing method, when the release sheet includes the connecting portion, when two or more of the plurality of peeling portions are peeled, they can be peeled together.

  Therefore, a plurality of peeling portions can be easily peeled off.

  Moreover, since it is partial that the connection part connects between the some peeling parts which adjoin, it can isolate | separate easily.

  Therefore, only the peeling part to peel can be peeled among several peeling parts by cut | disconnecting the connection part which connects the peeling part to peel and the peeling part adjacent to the peeling part.

  The present invention [8] includes a tab that protrudes outward from the adhesive layer so that the release sheet is separated from the through hole. In the positioning step, the release sheet is peeled from the adhesive layer with the tab as a starting point. The sealing method according to any one of the above [1] to [7], in which is exposed from the first opening.

  According to such a sealing method, the operator can easily peel the release sheet from the adhesive layer by holding the tab.

  Further, the tab of the release sheet peeled from the adhesive layer in the positioning step is exposed from the first opening.

  Therefore, in the sticking step, the release sheet can be peeled from the adhesive layer by pulling the tab exposed from the first opening.

  As a result, the sealing member can be attached to the other surface in the thickness direction of the first wall while easily peeling the release sheet.

  In the present invention [9], the release sheet includes a tab protruding outward from the adhesive layer so as to be separated from the through hole, and the connecting portion is disposed between the tab and the through hole. The sealing method according to [7] above is included, in which the release sheet is peeled off from the adhesive layer with the starting point being exposed, and the tab is exposed from the first opening.

  According to such a sealing method, when the tab is pulled toward the first opening, the release sheet is peeled off so as to pass through the connecting portion.

  Therefore, when the peeling part located in the outermost side is peeled, adjacent peeling parts can also be peeled together.

  As a result, a plurality of peeling portions can be peeled together.

  The present invention [10] is a sealing member that is used to seal a gap between an opening that penetrates the wall in the thickness direction and an insertion member that is smaller than the opening and is inserted into the opening. And an elastic layer provided for inserting the insertion member and having a through hole that is the same as or smaller than the outer diameter of the insertion member and is capable of press-fitting the insertion member. A sealing member including an adhesive layer disposed on the surface of the elastic layer so as to surround and a release sheet disposed on the surface of the adhesive layer is included.

  Such a sealing member is stuck on the wall by peeling the release sheet. At this time, by visually observing from the opening, the seal member can be attached to the wall so that the through hole of the elastic layer is located in the opening.

  Therefore, the operator can insert the insertion member into the opening of the wall so as to press fit into the through hole.

  As a result, the gap between the insertion member and the opening can be reliably sealed to improve waterproofness.

  The present invention [11] includes the seal member according to the present invention [10], wherein the elastic layer is foldable and has a restoring force to restore from the folded state.

  According to such a sealing member, even when the sealing member is larger than the opening, the opening can be passed by bending the sealing member.

  Therefore, the operator can stick the seal member to the other surface in the wall thickness direction while being on one side in the wall thickness direction with respect to the wall.

  Furthermore, since the seal member can be made larger than the opening, the waterproof property between the opening and the insertion member can be improved.

  The present invention [12] is the seal according to the present invention [10] or [11], wherein the release sheet includes a plurality of peeling portions sequentially arranged so as to surround the through hole with the through hole as a center. Contains members.

  According to such a sealing member, it is possible to adjust the area of the adhesive layer to be attached to the wall by adjusting the number of peeling portions to be peeled off.

  Therefore, even when the sizes of the openings are various, it is not necessary to prepare different types of seal members, and thus versatility of the seal members can be enhanced.

  This invention [13] contains the sealing member as described in this invention [12] in which either the inner periphery of a release sheet or the boundary part of several adjacent peeling parts corresponds with an opening part. .

  According to such a sealing member, by visually observing the opening, either the inner periphery of the release sheet or the boundary part of a plurality of adjacent peeling portions is aligned with the opening, so that the sealing member is placed on the wall. On the other hand, it can be reliably attached to an arbitrary position.

  The present invention [14] includes the seal member according to the present invention [12] or [13], wherein the release sheet includes a connecting portion that partially connects a plurality of adjacent peeling portions. Yes.

  According to such a sealing member, when the release sheet includes the connecting portion, when two or more of the plurality of peeling portions are peeled, they can be peeled together.

  Therefore, a plurality of peeling portions can be easily peeled off.

  Moreover, since it is partial that the connection part connects between the some peeling parts which adjoin, it can isolate | separate easily.

  Therefore, only the peeling part to peel can be peeled among several peeling parts by cut | disconnecting the connection part which connects the peeling part to peel and the peeling part adjacent to the peeling part.

  The present invention [15] is the seal according to any one of the present invention [10] to [14], wherein the release sheet is provided with a tab protruding outward from the adhesive layer so as to be separated from the through hole. Contains members.

  According to such a sealing member, the operator can easily peel the release sheet from the adhesive layer by holding the tab.

  Moreover, according to such a sealing member, after positioning a sealing member with respect to a wall, a release sheet can be peeled and a sealing member can be affixed on a wall.

  Specifically, starting from the tab, the release sheet is partially peeled off, and the partially exposed adhesive layer is attached to the wall. Thereby, the position of the seal member can be adjusted and positioned with respect to the wall. At this time, the tab is exposed from the opening.

  And by pulling the tab exposed from an opening part, all the release sheets can be peeled in the state by which the sealing member was positioned.

  As a result, the seal member can be reliably attached to an arbitrary position with respect to the wall.

  In the present invention [16], the release sheet includes a tab protruding outward from the adhesive layer so as to be separated from the through hole, and the connecting portion is disposed between the tab and the through hole. 14].

  According to such a sealing member, when the tab is pulled toward the through hole, the release sheet is peeled off so as to pass through the connecting portion.

  Therefore, when the peeling part located in the outermost side is peeled, adjacent peeling parts can also be peeled together.

  As a result, a plurality of peeling portions can be peeled together.

  According to the sealing method and the sealing member of the present invention, it is possible to improve the waterproofness between the first opening and the insertion member even when the first wall can be operated only from one side. .

FIG. 1 is a perspective view showing an embodiment of a seal member of the present invention. FIG. 2 is a cross-sectional view showing a state in which the gap between the insertion member and the first opening is sealed by the first sealing method using the seal member shown in FIG. FIG. 3 is an explanatory view for explaining a partial peeling step in the sealing method shown in FIG. 2, and is a perspective view of the seal member as viewed from one side in the thickness direction. FIG. 4 is an explanatory view for explaining an insertion step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 5 is an explanatory view for explaining an insertion step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from the other side in the thickness direction. FIG. 6 is an explanatory view for explaining a positioning step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 7 is an explanatory view for explaining a positioning step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from the other side in the thickness direction. FIG. 8 is an explanatory diagram for explaining a sticking step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 9 is an explanatory diagram for explaining a sticking step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from the other side in the thickness direction. FIG. 10 is an explanatory view for explaining an insertion step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from the other side in the thickness direction. FIG. 11 is an explanatory view for explaining an insertion step in the sealing method shown in FIG. 2, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 12 is a cross-sectional view showing a state in which the gap between the insertion member and the first opening is sealed by the second sealing method using the seal member shown in FIG. FIG. 13 is an explanatory view for explaining a partial peeling step in the second sealing method shown in FIG. 12, and is a perspective view of the seal member as viewed from one side in the thickness direction. FIG. 14 is an explanatory view for explaining an insertion step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 15 is an explanatory view for explaining an insertion step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall as viewed from the other side in the thickness direction. FIG. 16 is an explanatory view for explaining a positioning step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 17 is an explanatory view for explaining a positioning step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall viewed from the other side in the thickness direction. FIG. 18 is an explanatory view for explaining a sticking step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 19 is an explanatory view for explaining a sticking step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall as viewed from the other side in the thickness direction. FIG. 20 is an explanatory view for explaining an insertion step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall as viewed from the other side in the thickness direction. FIG. 21 is an explanatory view for explaining an insertion step in the second sealing method shown in FIG. 12, and is a perspective view of the first wall as viewed from one side in the thickness direction. FIG. 22 is a perspective view showing a modification of the seal member of the present invention.

1. Details of Seal Member 1 As shown in FIG. 1, the seal member 1 as one embodiment of the present invention has a substantially annular shape. The sealing member 1 includes an elastic layer 2, an adhesive layer 3, and a release sheet 4 in order.

  The elastic layer 2 is formed of, for example, an elastic body having a buffer (cushion) function and a watertight function. The elastic layer 2 can be bent and has a restoring force to restore from the bent state. The elastic layer 2 has a substantially annular shape corresponding to the outer shape of the seal member 1. The elastic layer 2 has a through hole 9.

  The through hole 9 is provided for inserting an insertion member 12 (described later). The through hole 9 has a substantially circular shape that is the same as the outer diameter of the insertion member 12 (described later) or smaller than the outer diameter of the insertion member 12 (described later). An insertion member 12 (described later) can be press-fitted into the through hole 9.

  The outer diameter of the elastic layer 2 is, for example, 50 mm or more, preferably 70 mm or more, more preferably 100 mm or more, for example 210 mm or less, preferably 190 mm or less, more preferably 170 mm or less.

  The inner diameter of the elastic layer 2, that is, the diameter of the through hole 9 is, for example, 80% or more, preferably 85% or more, for example, 100% or less, with respect to 100% of the outer diameter of the insertion member 12 (described later). Preferably, it is less than 100%, more preferably 95% or less. Specifically, the inner diameter of the elastic layer 2, that is, the diameter of the through hole 9 is, for example, 5 mm or more, preferably 15 mm or more, more preferably 25 mm or more, for example, 150 mm or less, preferably 130 mm or less. More preferably, it is 110 mm or less.

  As a material for forming the elastic layer 2, for example, ethylene / propylene / diene rubber (EPDM), for example, α-olefin / dicyclopentadiene such as 1-butene, for example, cyclic having a nonconjugated double bond such as ethylidene norbornene, etc. Or rubber copolymers containing acyclic polyene as a component, for example, ethylene / propylene rubber, ethylene / propylene terpolymer, silicone rubber, polyurethane rubber, polyamide rubber, natural rubber, polyisobutylene, polyisoprene, chloroprene rubber , Butyl rubber, nitrile butyl rubber, styrene / butadiene rubber, styrene / butadiene / styrene rubber, styrene / isoprene / styrene rubber, styrene / ethylene / butadiene rubber, styrene / ethylene / butylene / styrene rubber, styrene / ethylene Puren propylene-styrene rubber, and various rubbers such as acrylic rubber. Preferably, EPDM is used from the viewpoint of weather resistance.

  The elastic layer 2 contains the above-described materials, known foaming agents (known additives such as known crosslinking agents, vulcanization accelerators, softeners, fillers, foaming aids, if necessary). The foamed composition can be obtained as a foam by heating and foaming and crosslinking.

  Note that the color of the elastic layer 2 is, for example, white.

  The thickness of the elastic layer 2 is, for example, 0.5 mm or more, preferably 1 mm or more, for example, 10 mm or less, preferably 5 mm or less.

The apparent density of the elastic layer 2 is, for example, 0.01 g / cm ³ or more, preferably 0.02 g / cm ³ or more, for example, 0.5 g / cm ³ or less, preferably 0.25 g / cm. cm ³ or less.

  When the elastic layer 2 is obtained as a foam, the expansion ratio (volume expansion ratio) of the elastic layer 2 is, for example, 1.1 times or more, preferably 1.5 times or more, for example, 60 Double or less, preferably 40 or less.

  The adhesive layer 3 is disposed (laminated) on the surface of the elastic layer 2 so as to surround the through hole 9. The adhesive layer 3 has a substantially annular shape. More specifically, the adhesive layer 3 is disposed so as to surround the through hole 9 from the through hole 9 with an interval in the radial direction of the through hole 9. In other words, the periphery of the through hole 9 in the elastic layer 2 is exposed from the adhesive layer 3.

  The outer diameter of the adhesive layer 3 is the same as the outer diameter of the elastic layer 2. The inner diameter of the adhesive layer 3 is larger than the inner diameter of the elastic layer 2, that is, the diameter of the through hole 9. The inner diameter of the adhesive layer 3 is sufficient for a waterproof sealant between the through hole 9 and the first opening 23 (described later) of the first wall 18 (described later) (filling region 10 described later). The distance with the through-hole 9 should just be opened so that it can be filled. Specifically, the inner diameter of the adhesive layer 3 is, for example, 20 mm or more, preferably 40 mm or more, preferably 60 mm or more, for example, 180 mm or less, preferably 160 mm or less, and more preferably 140 mm or less. .

  The pressure-sensitive adhesive layer 3 is made of, for example, a pressure-sensitive adhesive composition having a watertight effect. Examples of the pressure-sensitive adhesive composition forming the pressure-sensitive adhesive layer 3 include a rubber-based pressure-sensitive adhesive composition and a resin-based pressure-sensitive adhesive composition.

  The rubber-based pressure-sensitive adhesive composition contains, for example, rubber such as butyl rubber, polyisobutylene, rubber asphalt as a main component.

  Examples of the resin-based pressure-sensitive adhesive composition include an acrylic pressure-sensitive adhesive composition, a silicone-based pressure-sensitive adhesive composition, a polyurethane-based pressure-sensitive adhesive composition, and a polyester-based pressure-sensitive adhesive composition.

  These pressure-sensitive adhesives preferably include rubber-based pressure-sensitive adhesive compositions, and more preferably, rubber-based pressure-sensitive adhesive compositions containing butyl rubber from the viewpoint of durability.

  Moreover, a well-known tackifier, a filler, and a softener are contained in an adhesive composition as needed, for example.

  Such an adhesive layer 3 has a color different from that of the elastic layer 2. The color of the adhesive layer 3 is, for example, black.

  The thickness of the adhesion layer 3 is 10 micrometers or more, for example, Preferably, it is 100 micrometers or more, for example, is 2000 micrometers or less, Preferably, it is 1000 micrometers or less.

  The release sheet 4 is disposed (laminated) on the surface of the adhesive layer 3. The release sheet 4 has a substantially annular shape that covers the entire surface of the adhesive layer 3. The outer diameter of the release sheet 4 is the same as the outer diameter of the adhesive layer 3, and the inner diameter of the release sheet 4 is the same as the inner diameter of the adhesive layer 3. In other words, the outer diameter of the release sheet 4 is the same as the outer diameter of the elastic layer 2, and the inner diameter of the release sheet 4 is larger than the inner diameter of the elastic layer 2, that is, the diameter of the through hole 9.

  The release sheet 4 is made of a film having flexibility (flexibility) and toughness (stiffness), for example.

  Specifically, the film forming the release sheet 4 is an olefin film such as a polyethylene (PE) film or a polypropylene (including PP or oriented polypropylene (OPP)) film, for example, an ester film such as a PET film. And synthetic resin films. Preferably, an olefin film is used.

  Moreover, the surface of the release sheet 4 can be appropriately surface-treated with a release agent such as silicone, long chain alkyl, fluorine, or molybdenum sulfide.

  Further, the release sheet 4 can be used as a single layer of the above-described synthetic resin film, or can be used as a laminated film in which a plurality of the above-mentioned synthetic resin films are laminated. As such a laminated film, for example, Examples thereof include a PE film and a laminated film in which an OPP film is laminated on the surface thereof, a PE film and a laminated film in which a polyester film is laminated on the surface thereof.

  The release sheet 4 is transparent.

  The thickness of the release sheet 4 is, for example, 50 μm or more, preferably 75 μm or more, more preferably 100 μm or more, for example, 500 μm or less, preferably 400 μm or less, more preferably 300 μm or less.

  Moreover, the tensile strength (JIS Z 1702) of the release sheet 4 is, for example, 10 MPa or more, preferably 15 MPa or more, more preferably 20 MPa or more, and usually 500 MPa or less. When the tensile strength of the release sheet 4 is not within the above range, the release sheet 4 is damaged in the sticking step (described later), and the damaged release sheet 4 becomes the adhesive layer 3 and the first wall. 18 (described later).

  The release sheet 4 includes a plurality of peeling portions that are sequentially arranged around the through hole 9 so as to surround the through hole 9. Specifically, the release sheet 4 is divided into a first peeling portion 5 and a second peeling portion 6.

  The first peeling portion 5 constitutes the outside in the radial direction of the release sheet 4. The first peeling portion 5 has a substantially annular shape. The outer diameter of the first peeling portion 5 is the same as the outer diameter of the adhesive layer 3. The inner diameter of the first peeling portion 5 is larger than the inner diameter of the adhesive layer 3. Specifically, the inner diameter of the first peeling portion 5 depends on the diameter of the first opening 23 (described later) of the first wall 18 (described later) between the outer diameter and the inner diameter of the adhesive layer 3, for example. As appropriate.

  The 2nd peeling part 6 comprises the radial inside rather than the 1st peeling part 5 in the release sheet 4. FIG. The 2nd peeling part 6 has a substantially annular shape. The second peeling portion 6 is adjacent to the first peeling portion 5 in the radial direction. In other words, the outer periphery of the second peeling portion 6 coincides with the inner periphery of the first peeling portion 5. The inner diameter of the second peeling portion 6 is the same as the inner diameter of the adhesive layer 3.

  The release sheet 4 includes a tab 7 and a connecting portion 8.

  The tab 7 is continuous with the first peeling portion 5. The tab 7 protrudes from the outer edge in the radial direction of the first peeling portion 5 toward the side opposite to the through hole 9 (that is, the outer side in the radial direction). In other words, the tab 7 protrudes outward from the adhesive layer 3 so as to be away from the through hole 9. The tab 7 has a substantially rectangular shape. The tab 7 has a size that can be reliably gripped by the operator.

  The protruding amount of the tab 7 (the dimension in the radial direction in the seal member 1) is, for example, 3 mm or more, preferably 5 mm or more, for example, 40 mm or less, preferably 20 mm or less.

  The width of the tab 7 (the dimension in the circumferential direction in the sealing member 1) is, for example, 5 mm or more, preferably 10 mm or more, for example, 180 mm or less, preferably 100 mm or less, and more preferably 50 mm or less.

  The connecting part 8 partially connects a part of the inner periphery of the first peeling part 5 and a part of the outer periphery of the second peeling part 6. In other words, the connecting portion 8 partially connects the first peeling portion 5 and the second peeling portion 6. The connecting portion 8 is disposed between the tab 7 and the through hole 9. More specifically, the connecting portion 8 may be located on an imaginary line connecting the tab 7 and the through hole 9. The width of the connecting portion 8 (the dimension in the circumferential direction of the seal member 1) is smaller than the width of the tab 7. The width of the connecting portion 8 may be any width that can reliably maintain the state where the first peeling portion 5 and the second peeling portion 6 are connected before the work and can be easily separated during the work. More preferably, it should be as small as possible so that the operator can easily disconnect it.

2. Manufacturing Method of Seal Member 1 In order to form the seal member 1 as described above, first, an elastic layer 2 is formed on a predetermined substrate, and an adhesive layer 3 is separately formed on the surface of the predetermined substrate. .

  Next, the elastic layer 2 and the adhesive layer 3 are bonded together.

  Thereafter, the bonded elastic layer 2 and adhesive layer 3 are punched into the shape of the sealing member 1, and a release sheet 4 formed in advance in a predetermined shape is laminated on the adhesive layer 3.

  At this time, the release sheet 4 is formed so as to be divided into the first peeling portion 5 and the second peeling portion 6 and to include the tab 7 and the connecting portion 8.

  The cuts that divide the first peeling portion 5 and the second peeling portion 6 are formed so as not to enter the adhesive layer 3. For example, the release sheet 4 divided into the first release part 5 and the second release part 6 is formed in advance, and the release sheet 4 is laminated on the adhesive layer 3.

  In addition, the notch which divides | segments the 1st peeling part 5 and the 2nd peeling part 6 may be formed so that the adhesion layer 3 may be entered.

3. First Sealing Method Using Seal Member 1 Next, a first sealing method using the seal member 1 (first embodiment of the sealing method of the present invention) will be described.

  For example, as illustrated in FIG. 2, the seal member 1 is assembled to a first wall 18 as an example of a wall and the insertion member 12. In the following description, the side on which the worker who is going to assemble the seal member 1 is positioned with respect to the first wall 18 is one side in the thickness direction, and the side where the seal member 1 is affixed is the thickness direction. The other side.

  The first wall 18 has a substantially plate shape having a thickness. The first wall 18 has a first opening 23 as an example of an opening.

  The first opening 23 penetrates the first wall 18 along the thickness direction of the first wall 18. The first opening 23 has a substantially circular shape. The diameter of the first opening 23 is smaller than the outer diameter of the elastic layer 2 and larger than the inner diameter of the elastic layer 2.

  A second wall 19 is disposed on the other side of the first wall 18 in the thickness direction.

  The second wall 19 is disposed on the other side in the thickness direction of the first wall 18 with a gap. In other words, the second wall 19 is disposed opposite to the first wall 18 on the other side in the thickness direction. The second wall 19 has a substantially plate shape having a thickness. The second wall 19 has a second opening 24.

  The second opening 24 overlaps the first opening 23 when projected in the thickness direction. The diameter of the second opening 24 is the same as the diameter of the first opening 23. The second opening 24 may not overlap the first opening 23 when projected in the thickness direction, and the diameter of the second opening 24 is different from the diameter of the first opening 23. May be.

  The first wall 18 and the second wall 19 are partitioned as a space 21 that can be operated only from the first opening 23 and the second opening 24.

  Thus, the 1st wall 18 is comprised as the outer wall of buildings, such as a house which consists of a two-layer structure, for example, the wall of a balcony, by combining with the 2nd wall 19.

  The insertion member 12 is inserted into the first opening 23 and the second opening 24. The insertion member 12 has a substantially cylindrical shape. The outer diameter of the insertion member 12 is smaller than the diameter of the first opening 23. In other words, the insertion member 12 has a size smaller than the first opening 23.

  The sealing member 1 described above is used to seal the gap between the first opening 23 and the insertion member 12 inserted into the first opening 23.

  In the following description, the second wall 19 is not shown in FIGS. 4 to 9 in order to prevent complication.

  In this method, first, as shown in FIG. 1, the sealing member 1 described above is prepared (preparation step).

  Next, in this method, as shown in FIG. 3, the release sheet 4 is partially peeled to expose the adhesive layer 3 partially (partial peeling step).

  Specifically, the operator grips the tab 7 and partially peels the release sheet 4 from the adhesive layer 3 so that the tab 7 faces the through hole 9. That is, the worker peels the release sheet 4 from the adhesive layer 3 with the tab 7 as a starting point. At this time, the 1st peeling part 5 and the 2nd peeling part 6 are peeled collectively by the 1st peeling part 5 and the 2nd peeling part 6 being connected by the connection part 8. FIG. Further, the release sheet 4 is peeled to a position where the tab 7 is exposed from the through hole 9.

  Next, in this method, as shown in FIGS. 4 and 5, in order to position the seal member 1 from one side in the thickness direction of the first wall 18 to the other side in the thickness direction of the first wall 18, One opening 23 is passed (passing step).

  Specifically, the operator bends the seal member 1 along a virtual line connecting the tab 7 and the through hole 9 so that the release sheet 4 side in the stacking direction of the seal member 1 is a mountain fold having a top portion. .

  Then, the seal member 1 is passed through the first opening 23 from one side in the thickness direction of the first wall 18 in a bent state. Then, the seal member 1 is restored from the bent state on the other side in the thickness direction of the first wall 18, that is, in the space 21.

  Next, in this method, as shown in FIGS. 6 and 7, the release sheet 4 faces the other surface in the thickness direction of the first wall 18 and is seen from one side in the thickness direction. The sealing member 1 is placed on the first wall so that a region (filling region 10) for filling the sealing material between the through hole 9 and the first opening 23 in the sealing member 1 is secured. Positioning with respect to 18 (positioning step).

  Specifically, when viewed from the thickness direction, the seal member 1 is placed on the first wall 18 so that the inner periphery of the release sheet 4 (the inner periphery of the second peeling portion 6) matches the first opening 23. Position with respect to. At this time, the tab 7 is exposed from the first opening 23.

  Then, the operator attaches the partially exposed adhesive layer 3 to the other surface in the thickness direction of the first wall 18. At this time, the operator puts a finger or a tool into the through hole 9 and applies the partially exposed adhesive layer 3 so as to press against the other surface in the thickness direction of the first wall 18.

  Next, in this method, as shown in FIGS. 8 and 9, the release sheet 4 is peeled off, and the adhesive layer 3 is pasted on the other surface in the thickness direction of the first wall 18 (pasting step).

  Specifically, the operator holds the tab 7 exposed from the first opening 23, pulls the release sheet 4, and peels it from the adhesive layer 3. At this time, both the first peeling part 5 and the second peeling part 6 peel from the adhesive layer 3. In addition, since the peeled release sheet 4 is pulled out to one side in the thickness direction of the first wall 18 where the worker is present, it can be easily processed without dropping the release sheet 4 into the space 21. .

  Then, the operator puts a finger or a tool in the through hole 9 again, and sticks the exposed adhesive layer 3 so as to press it against the other surface in the thickness direction of the first wall 18.

  Next, in this method, as shown in FIGS. 10 and 11, the insertion member 12 is inserted into the first opening 23 so as to be press-fitted into the through hole 9 (insertion step).

  Specifically, the insertion member 12 is inserted into the first opening 23 from the other side in the thickness direction of the second wall 19 so as to be press-fitted into the through hole 9 via the second opening 24. Thereby, in the filling area | region 10, the elastic layer 2 adheres to the surrounding surface of the insertion member 12 so that it may curve toward the one side of the thickness direction.

  In this way, as shown in FIG. 2, the insertion member 12 is assembled to the first wall 18, and the gap between the first opening 23 and the insertion member 12 is sealed by the seal member 1.

  Then, a known sealing material 15 such as a resin material indicated by an imaginary line is filled in the gap between the first opening 23 and the insertion member 12, that is, the filling region 10.

  Thus, the sealing of the gap between the first opening 23 and the insertion member 12 is completed.

4). Operation and Effect According to this sealing method, as shown in FIGS. 4 and 5, the seal member 1 passes through the first opening 23 from one side in the thickness direction of the first wall 18 and passes through the first wall 18. It is arranged on the other side in the thickness direction.

  As shown in FIGS. 6 to 9, the sealing member 1 is placed on the first wall 18 so that a filling region 10 for filling the sealing material is secured between the through hole 9 and the first opening 23. After being positioned, the release sheet 4 is peeled off, and is attached to the other surface in the thickness direction of the first wall 18.

  Therefore, while the operator is on one side in the thickness direction with respect to the first wall 18, the operator places the seal member 1 on the other side in the thickness direction of the first wall 18 and moves in the thickness direction of the first wall 18. Can be attached to the other side.

  As a result, as shown in FIGS. 2 and 11, the sealing member 1 can be attached to the first wall 18, and the waterproof property between the first opening 23 and the insertion member 12 is improved. be able to.

  Further, when the operator is working from one side in the thickness direction with respect to the first wall 18, when the seal member 1 after the insertion process is viewed from one side in the thickness direction of the first wall 18, Only the filling region 10 filled with the sealing material is exposed from the first opening 23.

  Therefore, a favorable finish when the first wall 18 is viewed from one side in the thickness direction can be obtained.

  Further, according to this sealing method, as shown in FIGS. 4 and 5, the sealing member 1 is inserted from one side of the first wall 18 in the first direction to the other side, so that the first wall 18 and the second wall are inserted. 19.

  Therefore, the seal member 1 can be disposed in the space 21 where the work can be performed only from the first opening 23 and the second opening 24 and can be attached to the other surface of the first wall 18 in the first direction.

  Also, as shown in FIGS. 10 and 11, since the insertion member 12 is press-fitted into the through hole 9 from the other side in the thickness direction of the second wall 19, the adhesive layer 3 of the seal member 1 is The one wall 18 is pressed against the other surface in the thickness direction.

  As a result, the seal member 1 and the first wall 18 can be more closely adhered to each other, so that further improvement in waterproofness can be achieved.

  Further, according to this sealing method, as shown in FIGS. 4 and 5, the sealing member 1 is bent, so that the sealing member 1 having a size larger than the first opening 23 is formed with respect to the first opening 23. , Can be passed.

  Therefore, the waterproof property between the 1st opening part 23 and the insertion member 12 can be improved further.

  Further, according to this sealing method, as shown in FIG. 3, the release sheet 4 is partially peeled in advance, whereby the partially exposed adhesive layer 3 is removed from the first wall 18 as shown in FIG. The position of the seal member 1 can be adjusted while being attached to the other surface in the thickness direction.

  Therefore, as shown in FIGS. 6 and 7, the seal member 1 can be easily positioned with respect to the first opening 23 of the first wall 18.

  Further, according to the sealing method using the seal member 1, as shown in FIG. 6, the first opening 23 is visually observed from one side in the thickness direction of the first wall 18 and the inside of the release sheet 4. Positioning can be performed by aligning the circumference with the first opening 23.

  Therefore, the sealing member 1 can be reliably positioned at an arbitrary position with respect to the first wall 18.

  Moreover, according to the sealing method using this sealing member 1, as shown in FIG. 3, when the release sheet 4 includes the connecting portion 8, the first peeling portion 5 and the second peeling portion 6 are connected. Can be peeled together.

  Therefore, the 1st peeling part 5 and the 2nd peeling part 6 can be peeled easily.

  Further, according to the sealing method using the seal member 1, as shown in FIG. 3, the operator can easily peel the release sheet 4 from the adhesive layer 3 by holding the tab 7.

  Further, the tab 7 of the release sheet 4 peeled from the adhesive layer 3 in the positioning step is exposed from the first opening 23 as shown in FIG.

  Therefore, as shown in FIG. 8, the release sheet 4 can be peeled from the adhesive layer 3 by pulling the tab 7 exposed from the first opening 23 in the attaching step.

  As a result, the sealing member 1 can be attached to the other surface in the thickness direction of the first wall 18 while easily peeling the release sheet 4.

  Further, according to this sealing method, as shown in FIG. 8, when the tab 7 is pulled toward the first opening 23, the release sheet 4 is peeled off so as to pass through the connecting portion 8.

  Therefore, when peeling the 1st peeling part 5, the 2nd peeling part 6 adjacent to the 1st peeling part 5 can also be peeled collectively.

  As a result, the first peeling portion 5 and the second peeling portion 6 can be peeled together.

  According to this sealing member 1, as shown in FIGS. 2 and 3, the release sheet 4 is peeled off, so that it is affixed to the first wall 18. At this time, by visually observing from the first opening 23, the sealing member 1 can be applied to the first wall 18 so that the through hole 9 of the elastic layer 2 is located in the first opening 23. it can.

  Therefore, the operator can insert the insertion member 12 into the first opening 23 of the first wall 18 so as to press fit into the through hole 9.

  As a result, the gap between the insertion member 12 and the first opening 23 can be reliably sealed, and the waterproofness can be improved.

  Further, according to the seal member 1, as shown in FIGS. 4 and 5, even if the seal member 1 is larger than the first opening 23, the first opening can be obtained by bending the seal member 1. 23 can be passed.

  Therefore, the user can affix the sealing member 1 to the other surface of the first wall 18 in the thickness direction while being on one side of the first wall 18 in the thickness direction with respect to the first wall 18.

  Furthermore, since the seal member 1 can be made larger in size than the first opening 23, the waterproof property between the first opening 23 and the insertion member 12 can be improved.

  Further, according to this sealing member 1, when the tab 7 is pulled toward the through hole 9 as shown in FIG. 8, the release sheet 4 is peeled off so as to pass through the connecting portion 8.

  Therefore, when peeling the 1st peeling part 5, the 2nd peeling part 6 adjacent to the 1st peeling part 5 can also be peeled collectively.

  As a result, the first peeling portion 5 and the second peeling portion 6 can be peeled together.

5. Second Sealing Method Using Seal Member 1 A second sealing method (second embodiment of the sealing method of the present invention) will be described with reference to FIGS. In the following description, members similar to those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 12, the sealing member 1 described above is more effective than the first opening 23 even when the first wall 18 includes an opening having a larger diameter than the first opening 23. It is possible to seal a gap between the opening having a larger diameter and the insertion member 12 inserted into the opening having a larger diameter than the first opening 23.

  Specifically, the first wall 18 has a first opening 31. The first opening 31 penetrates the first wall 18 along the thickness direction of the first wall 18. The first opening 31 has a substantially circular shape. The diameter of the first opening 31 is larger than that of the first opening 23 described above. Specifically, the diameter of the first opening 31 is the same as the inner diameter of the first peeling portion 5 of the release sheet 4 (the outer diameter of the second peeling portion 6). In other words, the inner diameter of the first release portion 5 of the release sheet 4 (the outer diameter of the second release portion 6) is set to a size that matches the first opening 23.

  The second wall 19 has a second opening 32. The second opening 32 overlaps the first opening 31 when projected in the thickness direction. The diameter of the second opening 32 is the same as the diameter of the first opening 31.

And in the 2nd sealing method, the sealing member 1 is prepared similarly to the above-mentioned 1st sealing method (preparation process).
Next, in the second sealing method, as shown in FIG. 13, the release sheet 4 is partially peeled to expose the adhesive layer 3 partially (partial peeling step).

  Specifically, the operator grips the tab 7 and partially peels the release sheet 4 from the adhesive layer 3 so that the tab 7 faces the through hole 9. At this time, the worker peels the release sheet 4 from the tab 7 as a starting point while pressing the second peeling portion 6 in the vicinity of the connecting portion 8. Thereby, the connection part 8 is cut | disconnected from the 1st peeling part 5, and only the 1st peeling part 5 is peeled from the adhesion layer 3 in the release sheet 4. FIG. Note that the first peeling portion 5 is peeled to a position where the tab 7 is exposed from the through hole 9.

  Next, in the second sealing method, as shown in FIGS. 14 and 15, the sealing member 1 is positioned from one side in the thickness direction of the first wall 18 to the other side in the thickness direction of the first wall 18. Then, the first opening 31 is passed (passing step).

  Specifically, the seal member 1 is bent so as to be folded in the same manner as the first sealing method described above, and after passing through the first opening 31, on the other side in the thickness direction of the first wall 18. Restore from the folded state.

  Next, in the second sealing method, as shown in FIGS. 16 and 17, only the first peeling portion 5 of the release sheet 4 faces the other surface in the thickness direction of the first wall 18, and one side in the thickness direction When viewed from the top, the through hole 9 is located in the first opening 31, and a region (filling region 10) is filled between the through hole 9 and the first opening 31 in the seal member 1. Thus, the sealing member 1 is positioned with respect to the first wall 18 (positioning step).

  Specifically, as seen from the thickness direction, the outer periphery of the second peeling portion 6 (the boundary portion between the first peeling portion 5 and the second peeling portion 6) is made to coincide with the first opening 31 so as to seal the seal. The member 1 is positioned with respect to the first wall 18. At this time, the tab 7 is exposed from the first opening 31.

  Then, the operator attaches the partially exposed adhesive layer 3 to the other surface in the thickness direction of the first wall 18. At this time, the operator puts a finger or a tool into the through hole 9 and applies the partially exposed adhesive layer 3 so as to press against the other surface in the thickness direction of the first wall 18.

  In the first sealing method described above, the filling region 10 is only the elastic layer 2. However, in the second sealing method, in addition to the elastic layer 2, the second peeling portion 6 is also used as the filling region 10. Secured.

  Next, in the second sealing method, as shown in FIGS. 18 and 19, only the first peeling portion 5 is peeled off so that the second peeling portion 6 is not peeled off from the elastic layer 2, and the adhesive layer 3 is removed from the first sealing layer 5. It sticks on the other surface of the thickness direction of the wall 18 (sticking process).

  Specifically, the operator holds the tab 7 exposed from the first opening 23, pulls the first peeling portion 5, and peels it from the adhesive layer 3. At this time, since the connecting portion 8 is disconnected, only the first peeling portion 5 peels from the adhesive layer 3.

  Then, the operator puts a finger or a tool in the through hole 9 again, and sticks the exposed adhesive layer 3 so as to press it against the other surface in the thickness direction of the first wall 18.

  Next, in the second sealing method, as shown in FIGS. 20 and 21, the insertion member 12 is inserted into the first opening 31 so as to be press-fitted into the through hole 9 (insertion step).

  Specifically, the insertion member 12 is inserted into the first opening 31 from the other side in the thickness direction of the second wall 19 so as to be press-fitted into the through hole 9 via the second opening 32. Thereby, in the filling area | region 10, the elastic layer 2 adheres to the surrounding surface of the insertion member 12 so that it may curve toward the one side of the thickness direction.

  Thus, as shown in FIG. 12, the insertion member 12 is assembled to the first wall 18, and the gap between the first opening 23 and the insertion member 12 is sealed by the seal member 1.

  Then, a known sealing material 15 such as a resin material indicated by an imaginary line is filled in the gap between the first opening 31 and the insertion member 12, that is, the filling region 10.

  Thus, the sealing of the gap between the first opening 31 and the insertion member 12 is completed.

  According to the second sealing method using the seal member 1, as shown in FIGS. 3 and 13, the thickness direction of the first wall 18 is adjusted by adjusting the number of peeling portions to be peeled in the release sheet 4. It is possible to adjust the area of the pressure-sensitive adhesive layer 3 to be attached to the other surface.

  Therefore, as shown in FIG. 2 and FIG. 12, even when the sizes of the openings of the first wall 18 are various, it is not necessary to prepare different types of seal members 1, and therefore the versatility of the seal members 1 Can be increased.

  Further, according to the second sealing method using the sealing member 1, as shown in FIG. 16, the first opening 31 is visually observed from one side in the thickness direction of the first wall 18 and a plurality of adjacent ones. Positioning can be performed by aligning the boundary portion of the peeling portion, that is, the boundary portion between the first peeling portion 5 and the second peeling portion 6 with the first opening 31.

  Therefore, the sealing member 1 can be reliably positioned at an arbitrary position with respect to the first wall 18.

  Further, according to the second sealing method using the seal member 1, as shown in FIG. 13, the connecting portion 8 is partially connected between the first peeling portion 5 and the second peeling portion 6. Therefore, it can be easily separated.

  Therefore, only the 1st peeling part 5 can be peeled by cut | disconnecting the connection part 8 which connects the 1st peeling part 5 and the 2nd peeling part 6 adjacent to the 1st peeling part 5. FIG.

6). Modified Example In the above-described embodiment, the release sheet 4 includes two peeling portions, the first peeling portion 5 and the second peeling portion 6, but the number of peeling portions is not limited to two.

  For example, the release sheet 4 may include a third peeling portion 39 in addition to the first peeling portion 5 and the second peeling portion 6 as shown in FIG.

  The 3rd peeling part 39 comprises the inner side of radial direction rather than the 2nd peeling part 6 in the release sheet 4. FIG. The third peeling portion 39 has a substantially annular shape. The third peeling portion 39 is adjacent to the second peeling portion 6 in the radial direction. In other words, the outer periphery of the third peeling portion 39 coincides with the inner periphery of the second peeling portion 6.

  Note that three or more peeling portions may be provided. Thereby, even if the size of the opening formed in the first wall 18 is various, it is possible to cope with it. In other words, the versatility of the sealing member 1 can be improved by adjusting the number of peeling portions provided in the release sheet 4 according to the number of sizes of the openings formed in the first wall 18.

  In the above-described embodiment, the elastic layer 2 is white and the adhesive layer 3 is black. However, these colors may be reversed. Moreover, the color employ | adopted as the elastic layer 2 and the adhesion layer 3 is not limited to white and black, and what kind of color may be sufficient if a boundary line can be discriminate | determined visually. Furthermore, the colors of the elastic layer 2 and the adhesive layer 3 may be the same. Even in such a case, since the adhesive layer 3 has a thickness, the operator can determine the boundary between the elastic layer 2 and the adhesive layer 3.

  In the embodiment described above, the seal member 1 is attached to the first wall 18, but may be attached to both the first wall 18 and the second wall 19. In that case, the seal member 1 is attached to one side of the second wall 19 in the thickness direction of the second wall 19.

DESCRIPTION OF SYMBOLS 1 Seal member 2 Elastic layer 3 Adhesive layer 4 Release sheet 5 1st peeling part 6 2nd peeling part 7 Tab 8 Connection part 9 Through hole 10 Filling area 12 Insertion member 18 1st wall 19 2nd wall 21 Space 23 1st Opening 24 Second opening 31 First opening 32 Second opening 39 Third peeling portion

Claims (16)

A sealing method for sealing a gap between a first opening penetrating the thickness direction of the first wall and an insertion member having a size smaller than the first opening and inserted into the first opening. There,
An elastic layer provided for inserting the insertion member, the elastic layer having the same outer diameter as the insertion member, or smaller than the outer diameter of the insertion member, and having a through hole into which the insertion member can be press-fitted;
An adhesive layer disposed on the surface of the elastic layer so as to surround the through hole;
A release sheet disposed on the surface of the adhesive layer;
A preparation step of preparing a sealing member comprising:
A passing step of passing the first opening in order to position the seal member from one side of the first wall in the thickness direction to the other side of the first wall in the thickness direction;
The release sheet faces the other surface of the first wall in the thickness direction, and when viewed from the thickness direction, the through hole is located in the first opening, and the through hole and the first hole are formed in the seal member. A positioning step of positioning the sealing member with respect to the first wall so that a region filled with a sealing material is secured between the opening and the first opening;
An affixing step of exfoliating the release sheet and affixing the adhesive layer to the other surface in the thickness direction of the first wall; and
A sealing method, comprising: an insertion step of inserting the insertion member into the first opening so as to be press-fitted into the through hole. A second wall is disposed opposite to the other side of the first wall in the thickness direction so as to be spaced apart;
The second wall has a second opening that overlaps the first opening when projected in the thickness direction,
Between the first wall and the second wall is a space that can be operated only from the first opening and the second opening,
In the inserting step, the insertion member is inserted into the first opening from the other side in the thickness direction of the second wall so as to be press-fitted into the through hole through the second opening. The sealing method according to claim 1, wherein:   In the passing step, the seal member is passed through the first opening in a bent state, and is restored from the bent state on the other side in the thickness direction of the first wall. The sealing method according to claim 1 or 2. Before the passing step, further comprising a partial peeling step of partially peeling the release sheet to partially expose the adhesive layer,
The sealing method according to any one of claims 1 to 3, wherein in the positioning step, the partially exposed adhesive layer is attached to the other surface of the first wall in the thickness direction. The release sheet includes a plurality of peeling portions sequentially arranged so as to surround the through hole with the through hole as a center,
5. The sealing method according to claim 1, wherein, in the attaching step, at least one of the plurality of peeling portions is peeled from the outermost peeling portion.   In the positioning step, as viewed from the thickness direction, either the inner periphery of the release sheet or the boundary portions of the plurality of adjacent peeling portions are made to coincide with the first opening. The sealing method according to claim 5, wherein the sealing member is positioned with respect to the first wall.   The sealing method according to claim 5, wherein the release sheet includes a connecting portion that partially connects a plurality of adjacent peeling portions. The release sheet includes a tab protruding outward from the adhesive layer so as to be separated from the through hole,
The said positioning process WHEREIN: The said release sheet is peeled from the said adhesion layer from the said tab as a starting point, The said tab is exposed from the said 1st opening part, The any one of Claims 1-7 characterized by the above-mentioned. The sealing method described in 1. The release sheet includes a tab protruding outward from the adhesive layer so as to be separated from the through hole,
The connecting portion is disposed between the tab and the through hole,
The sealing method according to claim 7, wherein, in the positioning step, the release sheet is peeled from the adhesive layer with the tab as a starting point, and the tab is exposed from the first opening. A seal member having a size smaller than the opening and penetrating the thickness direction of the wall, and used for sealing a gap between the insertion member inserted into the opening,
An elastic layer provided for inserting the insertion member, the elastic layer having the same outer diameter as the insertion member, or smaller than the outer diameter of the insertion member, and having a through hole into which the insertion member can be press-fitted;
An adhesive layer disposed on the surface of the elastic layer so as to surround the through hole;
A release sheet disposed on the surface of the adhesive layer;
A sealing member comprising:   The seal member according to claim 10, wherein the elastic layer is bendable and has a restoring force to restore from the folded state.   The sealing member according to claim 10 or 11, wherein the release sheet includes a plurality of peeling portions sequentially arranged so as to surround the through hole with the through hole as a center.   13. The seal member according to claim 12, wherein either an inner periphery of the release sheet or a boundary portion between a plurality of adjacent peeling portions coincides with the opening.   The seal member according to claim 12 or 13, wherein the release sheet includes a connecting portion that partially connects the plurality of adjacent peeling portions.   The sealing member according to any one of claims 10 to 14, wherein the release sheet includes a tab protruding outward from the adhesive layer so as to be separated from the through hole. The release sheet includes a tab protruding outward from the adhesive layer so as to be separated from the through hole,
The seal member according to claim 14, wherein the connecting portion is disposed between the tab and the through hole.

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