JP2014210928A - Sealing method and seal member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing method and a seal member used for the sealing method, capable of easily and stably sealing a gap between an opening penetrating a wall in a thickness direction and an insertion member inserted into the opening, with simple configuration.SOLUTION: A sealing method is for sealing a gap between an opening 12 penetrating a wall 11 and a duct 14 inserted into the opening 12. The sealing method includes: a seal member preparation process of preparing a seal member 1 having an elastic layer 2, an adhesive layer 3 and a release sheet 4, and also having a through hole 9 smaller than the outer circumference of the duct 14 and into which the duct 14 can be press-fitted, along a lamination direction thereof; an insertion process of press-fitting the duct 14 and inserting while pushing and enlarging a periphery of the through hole 9 against elasticity, so as to make the release sheet 4 contact the wall 11; and an adhesion process of adhering the seal member 1 on the duct 14 and the wall 11 while removing the release sheet 4 from the adhesive layer 3.

Description

  The present invention relates to a sealing method and a sealing member, and more particularly, to a sealing method suitably used for sealing a gap between an opening of an outer wall and an insertion member, and a sealing member used for the method.

  Conventionally, an opening (through hole) that penetrates the thickness direction is formed in an outer wall of a building or the like, and a duct (conduit) is inserted into the opening so that the inside and outside of the building can be connected via the duct. It is well known that the building is ventilated by communicating with each other.

  On the other hand, a gap is easily generated between the inner peripheral surface of the opening and the outer peripheral surface of the duct, and water may enter the inside from the outside of the building through the gap.

  In order to prevent such intrusion of water, for example, an adhesive tape having a specific elongation or deformation stress is applied so as to be wound around the duct, and is attached to the outer wall around the opening, and the gap between the opening and the duct is sealed. A method has been proposed (for example, see Patent Document 1).

JP-A-2005-126521

  However, in the above-described Patent Document 1, since the adhesive tape has elongation, when the adhesive tape is applied, the degree of the user pulling the adhesive tape varies, so that the adhesive tape is applied to the duct and the outer wall. The degree of expansion / contraction of the adhesive tape may vary.

  Therefore, skill is required to apply the adhesive tape uniformly to the duct and the outer wall so as not to cause a gap.

  Therefore, an object of the present invention is a sealing method capable of sealing a gap between an opening that penetrates the thickness direction of a wall and an insertion member inserted into the opening with a simple configuration and easily and stably. And it is providing the sealing member used for the sealing method.

  In order to achieve the above-described object, the sealing method of the present invention is a sealing method for sealing a gap between an opening that penetrates the thickness direction of a wall and an insertion member that is inserted into the opening. A through-hole into which the insertion member is inserted along the laminating direction thereof, and a release sheet laminated on the surface of the adhesive layer. A sealing member preparation step of preparing a formed sealing member, an insertion step of inserting the insertion member into the through hole so as to contact the sealing member, and abutting the release sheet against the wall; and It has a sticking step of sticking the seal member to the insertion member and the wall while peeling the release sheet from the adhesive layer.

  According to this method, in the insertion step, the insertion member is inserted into the through hole formed in the sealing member so as to contact the sealing member, and the release sheet is brought into contact with the wall.

  That is, in the insertion step, the seal member is brought into contact with both the insertion member and the wall. Then, in a state where the seal member is in contact with both the insertion member and the wall, the seal member is attached to the insertion member and the wall while peeling the release sheet from the adhesive layer.

  Therefore, in the insertion step, the sealing member is placed in a posture to be in contact with both the insertion member and the wall so that the gap between the opening and the insertion member can be sealed. The release sheet can be peeled off from the adhesive layer, and the sealing member can be attached to the insertion member and the wall to seal the gap between the opening and the insertion member.

  Thereby, it is possible to easily and stably seal the gap between the opening that penetrates the thickness direction of the wall and the insertion member that is inserted into the opening with a simple configuration.

  In the sealing method of the present invention, the release sheet includes a first peeling portion provided at a peripheral edge portion of the through hole and a second peeling portion provided at a portion other than the first peeling portion, In the sticking step, it is preferable that the seal member is stuck to at least the insertion member while peeling the first peeling portion, and the seal member is stuck to at least the wall while peeling the second peeling portion. .

  According to this method, the release sheet includes the first peeling portion and the second peeling portion, and when the sealing member is stuck to the insertion member in the sticking step, the first peeling portion is peeled off and the seal is released. When the member is attached to the wall, the second peeling portion is peeled off.

  Therefore, in a sticking process, the 1st exfoliation part and the 2nd exfoliation part can be exfoliated separately, a release sheet can be exfoliated easily, and a seal member is attached to both an insertion member and a wall. Can be securely attached.

  As a result, it is possible to more stably seal the gap between the opening that penetrates the thickness direction of the wall and the insertion member that is inserted into the opening.

  In the sealing method of the present invention, the seal member includes a first tension portion for pulling when the first peeling portion is peeled and a second tension portion for pulling when the second peeling portion is peeled. In the attaching step, it is preferable that the first peeling portion is peeled by pulling the first tension portion, and the second peeling portion is peeled by pulling the second tension portion. is there.

  According to this method, by pulling the first tension part and the second tension part, the first peeling part and the second peeling part can be peeled off, and the first peeling part and the second peeling part can be easily peeled off. Can do.

  In the sealing method of the present invention, the first tension part is provided so as to bulge from the first peeling part toward the through hole, and the second tension part is formed from the second peeling part to the through hole. It is preferable to be provided so as to bulge toward the opposite side.

  According to this method, since the first tension part and the second tension part are formed so as to bulge, the first tension part and the second tension part can be easily grasped and reliably pulled.

  The seal member of the present invention is a seal member used for sealing a gap between an opening that penetrates the thickness direction of the wall and an insertion member that is inserted into the opening, and includes an elastic layer, A pressure-sensitive adhesive layer laminated on the surface of the elastic layer and a release sheet laminated on the surface of the pressure-sensitive adhesive layer, and through-holes for inserting the insertion members are formed through the lamination direction. It is characterized by having.

  According to such a structure, the through-hole for inserting an insertion member is penetrated and formed along the lamination direction of an elastic layer, an adhesion layer, and a release sheet.

  Therefore, in the state where the insertion member is inserted into the through hole so that the sealing member is in contact with both the insertion member and the wall, and the sealing member is in contact with both the insertion member and the wall, the release sheet The seal member can be stuck to the insertion member and the wall while peeling the film from the adhesive layer.

  That is, the sealing member is placed in a posture to be in contact with both the insertion member and the wall so that the gap between the opening and the insertion member can be sealed, and the release sheet is attached in the attaching step while maintaining the posture. It peels from an adhesion layer, a sealing member can be affixed on an insertion member and a wall, and the clearance gap between an opening part and an insertion member can be sealed.

  Thereby, it is possible to easily and stably seal the gap between the opening that penetrates the thickness direction of the wall and the insertion member that is inserted into the opening with a simple configuration.

  Moreover, in the sealing member of this invention, the said release sheet is provided with the 1st peeling part provided in the peripheral part of the said through hole, and the 2nd peeling part provided in parts other than the said 1st peeling part. Is preferred.

  According to such a structure, the release sheet is provided with the 1st peeling part and the 2nd peeling part.

  Therefore, when the release sheet is peeled off, the first peeling portion and the second peeling portion can be peeled separately, the release sheet can be easily peeled off, and the sealing member is attached to the insertion member and the wall. It can be reliably affixed to both.

  As a result, it is possible to more stably seal the gap between the opening that penetrates the thickness direction of the wall and the insertion member that is inserted into the opening.

  Further, the seal member of the present invention includes a first tension portion for pulling when the first peeling portion is peeled and a second tension portion for pulling when the second peeling portion is peeled. Is preferred.

  According to such a configuration, the first peeling portion and the second peeling portion can be peeled by pulling the first tension portion and the second tension portion, and the first peeling portion and the second peeling portion can be easily peeled off. Can be made.

  According to the sealing method and the seal member of the present invention, the seal member is brought into a posture to be in contact with both the insert member and the wall so that the gap between the opening and the insert member can be sealed, and the posture is maintained. However, the release sheet can be peeled off from the adhesive layer, and the sealing member can be attached to the insertion member and the wall to seal the gap between the opening and the insertion member.

  Thereby, it is possible to easily and stably seal the gap between the opening that penetrates the thickness direction of the wall and the insertion member that is inserted into the opening with a simple configuration.

It is a top view which shows one Embodiment of the sealing member of this invention. It is a bottom view of the sealing member shown in FIG. It is a front view of the sealing member shown in FIG. It is a rear view of the sealing member shown in FIG. It is a right view of the sealing member shown in FIG. It is a left view of the seal member shown in FIG. It is explanatory drawing for demonstrating one Embodiment of the sealing method of this invention, Comprising: An insertion process is shown, (a) is a perspective view, (b) is AA sectional drawing. It is explanatory drawing for demonstrating the sealing method shown in FIG. 7, Comprising: It is a perspective view which shows a sticking process. It is explanatory drawing for demonstrating the sealing method shown in FIG. 7, Comprising: The state which sticking of the sealing member was completed is shown, (a) is a perspective view, (b) is BB sectional drawing. . It is explanatory drawing for demonstrating the modification of the sealing member of this invention, and the sealing method, Comprising: (a) shows the top view of a sealing member, (b) shows the front view of a sealing member. It is explanatory drawing for demonstrating the sealing method shown in FIG. 10, Comprising: Sectional drawing of the state in which sticking of the sealing member was completed is shown.

  FIG. 1 is a plan view showing an embodiment of a seal member of the present invention. FIG. 2 is a bottom view of the seal member shown in FIG. FIG. 3 is a front view of the seal member shown in FIG. 4 is a rear view of the seal member shown in FIG. FIG. 5 is a right side view of the seal member shown in FIG. 1. 6 is a left side view of the seal member shown in FIG.

  As shown in FIG. 1, the sealing member 1 is formed in a substantially disk shape in plan view (that is, a substantially ring shape in plan view) in which a through hole 9 into which a duct 14 (described later) is inserted is formed in the center. Yes. In the description of the sealing member 1, when referring to the direction, the elastic layer 2 (described later) is laminated in the stacking direction of the elastic layer 2 (described later), the adhesive layer 3 (described later) and the release sheet 4 (described later). One side (that is, the upper side in FIG. 3) is the one side, and the side on which the release sheet 4 (described later) is stacked (that is, the lower side in FIG. 3) is the other.

  The through hole 9 is formed in a substantially circular shape in plan view having a smaller diameter than the outer diameter of a duct 14 (described later).

  Further, as shown in FIG. 3, the sealing member 1 includes an elastic layer 2, an adhesive layer 3 laminated on the other surface in the lamination direction of the elastic layer 2, and a release layer laminated on the other surface in the lamination direction of the adhesive layer 3. And a sheet 4.

  The elastic layer 2 is formed, for example, from an elastic body having a buffering (cushioning) action and a watertight action into a substantially annular shape in plan view corresponding to the outer shape of the seal member 1.

  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.

  The thickness of the elastic layer 2 is 0.5-30 mm, for example, Preferably, it is 2-15 mm.

The apparent density of the elastic layer 2 is, for example, 0.01 to 0.5 g / cm ³ , preferably 0.05 to 0.25 g / cm ³ .

  Moreover, 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 to 25 times, preferably 1.5 to 20 times.

  The pressure-sensitive adhesive layer 3 is formed, for example, from a pressure-sensitive adhesive composition having a watertight effect so as to cover the entire surface of the elastic layer 2 in a substantially annular shape in plan view corresponding to the outer shape of the seal member 1.

  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.

  The thickness of the adhesion layer 3 is 10-1000 micrometers, for example, Preferably, it is 100-500 micrometers.

  The release sheet 4 is, for example, a substantially annular shape in plan view corresponding to the outer shape of the seal member 1 so as to cover the entire surface of the adhesive layer 3 from a film having flexibility and toughness. Is formed.

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

  Further, the tensile strength (JIS K 7113) of the release sheet 4 is, for example, 10 MPa or more, preferably 50 MPa or more, more preferably 100 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 is bonded to the adhesive layer 3, the wall 11, It may remain between the duct 14.

  Further, as shown in FIG. 2, the release sheet 4 is formed with a first cut 15 having a substantially circular shape in bottom view sharing the center with the through hole 9 between the inner periphery and the outer periphery. . Thereby, the release sheet 4 is divided into a first peeling portion 5 on the radially inner side and a second peeling portion 6 on the radially outer side in the radial direction of the sealing member 1.

  The diameter of the first cut 15 is appropriately set corresponding to the diameter of the duct 14 (described later). More specifically, for example, the diameter of the duct 14 (described later) is 100 to 130%, preferably, It is set to 110 to 120%.

  If the diameter of the first cut 15 is within the above range, the second inner side of the seal member 1 corresponding to the first peeling portion 5 is arranged along the outer periphery of the duct 14 in the insertion step (described later). It can be raised with respect to the radially outer portion of the seal member 1 corresponding to the peeling portion 6, and the first peeling portion 5 and the second peeling portion 6 can be easily peeled in the sticking step (described later). it can.

  The first peeling portion 5 is formed in a substantially annular shape in a bottom view corresponding to the radially inner half portion of the sealing member 1 at the peripheral edge of the through hole 9. Further, the first peeling part 5 includes a first tension part 7.

  The first tension portion 7 is formed in a substantially trapezoidal shape in plan view that bulges from the radially inner end edge of the first peeling portion 5 into the through hole 9, that is, radially inward.

  The second peeling portion 6 is formed in a substantially annular shape in bottom view corresponding to the radially outer half portion of the seal member 1 around the first peeling portion 5. The second peeling portion 6 includes a second tension portion 8.

  The second tension portion 8 is disposed on the opposite side of the first tension portion 7 in the radial direction, and extends from the radially outer edge of the second peeling portion 6 toward the opposite side of the through hole 9 (that is, radially outward). Is formed in a substantially trapezoidal shape in plan view.

  The release sheet 4 has a radially inner end edge of the first tension portion 7 and the second tension portion 8 so as to pass through the centers of the first tension portion 7 and the second tension portion 8 in the circumferential direction. A second notch 16 that is substantially straight when viewed from the bottom along the radial direction is formed across the radially outer edge.

  Thereby, the release sheet 4 is cut | disconnected in the circumferential direction in the part in which the 2nd cut 16 is formed. Moreover, the 1st tension | tensile_strength part 7 and the 2nd tension | tensile_strength part 8 are divided into 2 by the circumferential direction.

  And in order to form the sealing member 1, first, the elastic layer 2 is formed on a predetermined base material, and the adhesion layer 3 is separately formed on the surface of the predetermined base material. 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 first cut 15 and the second cut 16 are formed in the release sheet 4, and the first cut 15 and the second cut 16 affect the adhesive layer 3 (for example, in the adhesive layer 3). , The first cut 15 and the second cut 16 are not cut). For example, the release sheet 4 in which the first cut 15 and the second cut 16 are formed in advance is formed, and the release sheet 4 is laminated on the adhesive layer 3.

  Next, a sealing method using the seal member 1 will be described.

  FIG. 7 is an explanatory view for explaining an embodiment of the sealing method of the present invention, showing an insertion process, (a) is a perspective view, and (b) is a cross-sectional view along AA. is there. FIG. 8 is an explanatory view for explaining the sealing method shown in FIG. 7 and is a perspective view showing a sticking step. FIG. 9 is an explanatory diagram for explaining the sealing method shown in FIG. 7, showing a state in which a seal member is affixed, (a) is a perspective view, and (b) is a cross section taken along the line BB. FIG.

  As shown in FIG. 9A, the seal member 1 is used to seal a gap 20 (described later) between a wall 11 and a duct 14 as an insertion member.

  The wall 11 is usually an outer wall of a building such as a house, and a substantially cylindrical opening 12 is formed through the wall 11 along the thickness direction thereof. The diameter of the opening 12 is formed larger than the diameter of the through hole 9 of the seal member 1.

  The wall 11 is provided with a waterproof sheet 13 for preventing moisture from adhering to the wall 11 so as to cover the entire surface of the wall 11.

  The duct 14 is formed in a substantially cylindrical shape extending in the thickness direction of the wall 11, and has an outer diameter slightly smaller than the diameter of the opening 12.

  A duct 14 is inserted through the opening 12 of the wall 11, and a gap 20 is formed between the inner peripheral surface of the wall 11 and the outer peripheral surface of the duct 14.

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

  Next, in this method, as shown in FIG. 7A, the duct 14 is inserted into the through hole 9 of the seal member 1 and the release sheet 4 of the seal member 1 is brought into contact with the wall 11 (insertion step). .

  Specifically, the release sheet 4 faces the tip of the duct 14 (the free end protruding from the wall 11, not shown) so that the through hole 9 and the tip of the duct 14 overlap when projected in the stacking direction. Next, the seal member 1 is aligned with the duct 14.

  Thereafter, the seal member 1 is pushed toward the other side in the stacking direction so as to press-fit the duct 14 into the through hole 9. Then, the inner peripheral end face of the first peeling portion 5 is brought into contact with the outer peripheral end face at the tip of the duct 14.

  Further, when the seal member 1 is pushed toward the other side in the stacking direction, the radially inner portion of the seal member 1 corresponding to the first peeling portion 5 is directed toward one side in the stacking direction by the outer peripheral end surface of the duct 14. It is pressed and bent so as to rise toward one side in the stacking direction.

  At this time, the radially inner portion of the seal member 1 is expanded along the outer peripheral surface of the duct 14 against the elasticity of the elastic layer 2 and the adhesive layer 3.

  Further, as shown in FIG. 7B, the first peeling portion 5 of the release sheet 4 and the outer peripheral surface of the duct 14 are in contact with each other at the radially inner portion of the seal member 1. Thereby, when pushing in the sealing member 1 toward the other of the lamination direction, the release sheet 4 can be rubbed against the duct 14, and the sealing member 1 can be pushed in smoothly.

  Then, the seal member 1 is pushed in until the radially outer portion of the seal member 1 corresponding to the second peeling portion 6 contacts the waterproof sheet 13 of the wall 11.

  Then, the second peeling portion 6 of the release sheet 4 comes into contact with the waterproof sheet 13 on the wall 11.

  Next, in this method, as shown in FIG. 8, the first peeling portion 5 is peeled off, the radially inner portion of the sealing member 1 is stuck to the duct 14, and the second peeling portion 6 is peeled off while being sealed. The radially outer portion of the member 1 is attached to the waterproof sheet 13 on the wall 11.

  Specifically, the first tension part 7 in one circumferential direction is pulled in the axial direction of the duct 14, and one end part in the circumferential direction of the first peeling part 5 is peeled from the adhesive layer 3.

  Thereafter, the first tension part 7 is pulled so as to go around the duct 14 from one circumferential direction to the other circumferential direction, and the first peeling part 5 is peeled from the adhesive layer 3 over the entire circumferential direction. Let

  Thereby, although the adhesion layer 3 is sequentially exposed with respect to the outer peripheral surface of the duct 14, the exposed adhesive layer 3 is affixed to the outer peripheral surface of the duct 14 one by one.

  Further, one circumferential second tension portion 8 is pulled along the wall 11 to peel one end portion of the second peeling portion 6 in the circumferential direction from the adhesive layer 3.

  Thereafter, the second pulling portion 8 is further pulled from the circumferential direction one side to the other circumferential direction so as to go around the duct 14, and the second peeling portion 6 is peeled from the adhesive layer 3 over the entire circumferential direction. Let

  Thereby, although the adhesive layer 3 is sequentially exposed with respect to the surface of the waterproof sheet 13, the exposed adhesive layer 3 is sequentially affixed on the surface of the waterproof sheet 13.

  In order to peel the release sheet 4 from the adhesive layer 3, the first tension part 7 and the second tension part 8 on the other side in the circumferential direction can be pulled. In that case, after peeling off the other end in the circumferential direction, the first tension portion 7 and the second tension portion 8 are moved so as to go around the duct 14 from the other circumferential direction to one circumferential direction. pull.

  Then, as shown in FIGS. 9A and 9B, the radially inner portion of the seal member 1 and the outer peripheral surface of the duct 14 are in close contact with each other in the circumferential direction of the duct 14, and the opening portion. 12, the radially outer portion of the sealing member 1 and the waterproof sheet 13 are in close contact with each other in the circumferential direction of the opening 12.

  Thereby, the sealing of the gap 20 between the wall 11 and the duct 14 is completed.

  According to this sealing method and the seal member 1, as shown in FIG. 8, in the insertion step, the duct 14 is inserted into the through hole 9 formed in the seal member 1 so as to contact the seal member 1, The release sheet 4 is brought into contact with the wall 11.

  That is, in the insertion step, the seal member 1 is brought into contact with both the duct 14 and the wall 11. Then, in a state where the seal member 1 is in contact with both the duct 14 and the wall 11, the seal member 1 is stuck to the duct 14 and the wall 11 while peeling the release sheet 4 from the adhesive layer 3.

  Therefore, in the insertion step, the sealing member 1 is placed in a posture to be in contact with both the duct 14 and the wall 11 so that the gap 20 between the opening 12 and the duct 14 can be sealed, and while maintaining the posture, In the sticking step, the release sheet 4 can be peeled from the adhesive layer 3 and the seal member 1 can be stuck to the duct 14 and the wall 11 to seal the gap 20 between the opening 12 and the duct 14.

  Thereby, the clearance gap 20 between the opening part 12 which penetrates the thickness direction of the wall 11 and the duct 14 inserted in the opening part 12 can be sealed easily and stably with a simple configuration.

  Moreover, according to this sealing method and the sealing member 1, as shown in FIG. 8, the release sheet 4 is provided with the 1st peeling part 5 and the 2nd peeling part 6, and in the sticking process, the sealing member 1 is provided. When affixing to the duct 14, the first exfoliation part 5 is exfoliated, and when the seal member 1 is affixed to the wall 11, the second exfoliation part 6 is exfoliated.

  Therefore, in the sticking step, the first peeling portion 5 and the second peeling portion 6 can be peeled separately, and the release sheet 4 can be easily peeled off.

  Further, after the sealing member 1 is attached to either the duct 14 or the wall 11, it can be attached to the other.

  Therefore, the seal member 1 can be reliably attached to both the duct 14 and the wall 11.

  As a result, the gap 20 between the opening 12 penetrating the thickness direction of the wall 11 and the duct 14 inserted into the opening 12 can be sealed more stably.

  Moreover, according to this sealing method and the sealing member 1, as shown in FIG. 8, the 1st peeling part 5 and the 2nd peeling part 6 are peeled by pulling the 1st tension part 7 and the 2nd tension part 8. The first peeling part 5 and the second peeling part 6 can be easily peeled off.

  Moreover, according to this sealing method and the sealing member 1, since the first tension part 7 and the second tension part 8 are formed so as to bulge as shown in FIG. 2 The tension part 8 can be easily grasped and pulled reliably.

In the above-described embodiment, the first peeling portion 5 is peeled off and the sheet member 1 is stuck on the duct 14, and the second peeling portion 6 is peeled off and the sheet member 1 is stuck on the wall 11. The order of peeling the part 5 and the second peeling part 6 is not particularly limited, and the second peeling part 6 is peeled after peeling the first peeling part 5 (that is, the seal member 1 is pasted on the duct 14 and then the wall 11 can be attached), and the second peelable portion 6 can be peeled off, and then the first peelable portion 5 can be peeled (that is, the seal member 1 is stuck on the wall 11 and then stuck on the duct 14). Moreover, the 1st peeling part 5 and the 2nd peeling part 6 can also be peeled simultaneously.
(Modification)
FIG. 10 is an explanatory view for explaining a modification of the sealing member and the sealing method of the present invention, wherein (a) shows a plan view of the sealing member, and (b) shows a front view of the sealing member. Show. FIG. 11 is an explanatory diagram for explaining the sealing method shown in FIG. 10 and shows a cross-sectional view in a state where the sticking of the seal member is completed. 10 and 11, the same reference numerals are given to the same members as those in the above-described embodiment, and the description thereof is omitted.

  In the above-described embodiment, the seal member 30 is attached to the wall 11 having the waterproof sheet 13, but is not particularly limited, and as shown in FIG. 10C, the seal member is attached to the wall 11 having no waterproof sheet 13. After pasting 30, the waterproof sheet 13 may be provided so as to cover the wall 11 and the seal member 1.

  In that case, as shown in FIG. 10A and FIG. 10B, the sealing member 30 includes a waterproof sheet-side adhesive layer 31 laminated on one surface in the lamination direction of the elastic layer 2, and the waterproof sheet side. A waterproof sheet-side release sheet 32 is provided on one surface of the adhesive layer 31 in the stacking direction.

  The waterproof sheet side pressure-sensitive adhesive layer 31 is formed in a substantially annular shape in a plan view laminated on the outer half portion of the seal member 30.

  The waterproof sheet-side release sheet 32 is formed in a substantially annular shape in plan view corresponding to the waterproof sheet-side adhesive layer 31.

  And after sticking the sealing member 30 with respect to the wall 11 and the duct 14 like above-mentioned embodiment, the waterproof sheet side release sheet 32 is peeled from the waterproof sheet side adhesive layer 31, and the waterproof sheet side adhesive layer 31 is exposed, and the waterproof sheet 13 is affixed to the waterproof sheet-side adhesive layer 31.

  According to the modified seal member 30, the waterproof sheet side adhesive layer 31 is provided on one surface in the stacking direction of the elastic layer 2, and thus the waterproof sheet 13 is attached to the waterproof sheet side adhesive layer 31. The waterproof sheet 13 can be fixed to the seal member 30.

  In addition, in the sealing member 30 of the modified example, it is possible to obtain the same operational effects as in the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Seal member 2 Elastic layer 3 Adhesive layer 4 Release sheet 5 1st peeling part 6 2nd peeling part 7 1st tension part 8 2nd tension part 9 Through hole 11 Wall 12 Opening part 14 Duct 30 Sealing member

Claims (7)

A sealing method for sealing a gap between an opening penetrating a thickness direction of a wall and an insertion member inserted into the opening,
An elastic layer, an adhesive layer laminated on the surface of the elastic layer, and a release sheet laminated on the surface of the adhesive layer are provided for inserting the insertion member along their laminating direction. A seal member that is smaller than the outer periphery of the insertion member and that is formed with a through hole into which the insertion member can be press-fitted, and in which the cutout other than the through hole is not formed in the elastic layer and the adhesive layer is prepared. Sealing member preparation process,
The insertion member is press-fitted into the through-hole from the release sheet side in the stacking direction so as to contact the seal member, and the peripheral portion of the through-hole resists the elasticity of the elastic layer and the adhesive layer. An insertion step in which the release sheet is in contact with the wall, and is inserted so as to be bent toward the elastic layer side in the stacking direction, and
A sealing method, comprising: an attaching step of attaching the seal member to the insertion member and the wall while peeling the release sheet from the adhesive layer. The release sheet includes a first peeling portion provided at a peripheral portion of the through hole, and a second peeling portion provided at a portion other than the first peeling portion,
In the sticking step, the seal member is stuck to at least the insertion member while peeling the first peeling portion, and the seal member is stuck to at least the wall while peeling the second peeling portion. The sealing method according to claim 1. The seal member includes a first tension portion for pulling when the first peeling portion is peeled off, and a second tension portion for pulling when the second peeling portion is peeled off,
In the sticking step, the first peeling portion is peeled off by pulling the first tension portion, and the second peeling portion is peeled off by pulling the second tension portion. The sealing method described. The first tension portion is provided so as to bulge from the first peeling portion toward the through hole,
The sealing method according to claim 3, wherein the second tension part is provided so as to bulge from the second peeling part toward the side opposite to the through hole. A seal member used to seal a gap between an opening penetrating the thickness direction of the wall and an insertion member inserted into the opening;
An elastic layer;
An adhesive layer laminated on the surface of the elastic layer;
A release sheet laminated on the surface of the adhesive layer,
Along the lamination direction, provided to insert the insertion member, smaller than the outer periphery of the insertion member, a through-hole through which the insertion member can be press-fitted is formed,
No cutouts other than the through holes are formed in the elastic layer and the adhesive layer, and when the insertion member is press-fitted from the release sheet side in the stacking direction, the peripheral portion of the through holes is A sealing member, which is expanded against the elasticity of the elastic layer and the adhesive layer and can be bent toward the elastic layer in the stacking direction.   The said release sheet is provided with the 1st peeling part provided in the peripheral part of the said through-hole, and the 2nd peeling part provided in parts other than the said 1st peeling part, It is characterized by the above-mentioned. The seal member according to 1.   6. The apparatus according to claim 5, further comprising a first tension part for pulling when the first peeling part is peeled off and a second tension part for pulling when the second peeling part is peeled off. Or the sealing member of 6.

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