JP2012245135A - Attaching structure of joint material, and joint material used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attaching structure of a joint material in which a joint material attached to a gap between a bathtub flange and a wall face portion adjacent to the bathtub flange can be prevented from rising from the gap, and to provide a joint material used for the structure.SOLUTION: The joint material 20 is used in the attaching structure of the joint material which is attached to a gap between a flange portion 14a and a front wall face 11 or the like adjacent to the flange portion 14a. The joint material is formed of a surface seal portion 21 installed along the surface side part of the flange portion 14a, and an insertion portion 22 extending from the surface seal portion 21 toward the inner part of the gap and having a recess 25 formed on the flange portion 14a side. Then, a width in the vertical direction of the recess 25 is made shorter than a length in the vertical direction of the flange portion 14a, wherein a space is formed between the inner face of the recess 25 and the side face of the flange portion 14a, and an elastic adhesive 26 is filled in the space.

Description

  The present invention relates to a joint material mounting structure attached to a gap between a bathtub flange and a wall surface adjacent to the bathtub flange, and a joint material used therefor.

  Conventionally, a joint material has been provided in the gap formed between the flange of the bathtub installed in the bathroom and the wall of the bathroom, and this joint material prevents water from entering the gap. (For example, Patent Document 1). The joint material includes a covering piece portion that closes a space between the wall surface portion and the bathtub, and a leg piece portion that extends downward from the covering piece portion. A plurality of fin pieces extending obliquely upward are formed on the bathtub side of the leg piece portion, and a plurality of buffer protrusions are formed on the wall surface portion side of the leg piece portion. For this reason, when the leg piece part is press-fitted into the gap between the bathtub flange and the wall surface part, the fin piece is elastically contacted with the bathtub flange, and the leg piece part is pressed against the wall surface part by the reaction force of the fin piece, and the covering piece part Is pressed against the wall surface. This produces a water stop effect.

JP 2003-190036 A

  However, when hot water is poured into the bathtub, the floor on which the bathtub is installed is bent due to its weight, and the bathtub itself is also displaced in the vertical direction. When the hot water in the bathtub is drained, the bending of the floor on which the bathtub is installed is eliminated, and the bathtub position is also restored. When the bathtub is displaced in the vertical direction, a deviation occurs between the flange of the bathtub and the wall surface. By repeating these, the joint material may be lifted from the gap. Further, the joint material expands or contracts due to the temperature change in the bathroom. This also causes the joint material to shift and easily lift from the gap. As described above, when the joint material is lifted from the gap, the sealing performance is deteriorated.

  The present invention has been made to address the above-described problems, and the purpose thereof is a joint material that can prevent a joint material attached to a gap between a bathtub flange and a wall surface portion adjacent to the bathtub flange from floating up from the gap. It is providing the joint structure and joint material used for it.

  In order to achieve the above-described object, the structural feature of the joint material mounting structure according to the present invention is a joint material that is attached to the gap between the bathtub flange (14a) and the wall surface portions (11, 15) adjacent to the bathtub flange. (20, 30, 40), wherein the joint material extends from the surface seal portion to the inner side of the gap from the surface seal portion (21) installed along the surface side portion of the bathtub flange. And a recess (25, 35, 45) formed on the bathtub flange side, the vertical width of the recess being set shorter than the vertical length of the bathtub flange, A space portion is formed between the inner surface of the tub and the side surface of the bathtub flange, and the space portion is filled with the adhesive (26).

  In the joint material mounting structure according to the present invention, the joint material includes a surface seal portion and an insertion portion. And a surface seal part is installed along the surface side part of a bathtub flange, and seals between the upper end edge part of a bathtub flange and a wall surface part, and an insertion part is in the crevice between a bathtub flange and a wall surface part. It is inserted, and the surface seal part is disposed at an appropriate position by pressing against the side surface and the wall surface of the bathtub flange. Moreover, the recessed part is formed in the bathtub flange side in an insertion part, and the width | variety of the up-down direction of this recessed part is shorter than the length of the up-down direction of a bathtub flange. For this reason, the insertion part on the upper and lower sides of a recessed part contact | abuts the side surface of a bathtub flange, and the substantially sealed space is formed in the inner surface of a recessed part and the side surface of a bathtub flange. And since the adhesive agent is filled in the space portion, the bathtub flange and the plugging portion of the joint material are bonded and fixed with an adhesive having a predetermined thickness.

  For this reason, even if vertical displacement occurs in the bathtub or expansion and contraction occur in the joint material, the joint material moves following the bathtub flange, and therefore does not rise from the gap. Thus, by fixing the joint material not on the wall surface but on the bathtub side where displacement is likely to occur, it is possible to more reliably prevent the joint material from rising from the gap. Moreover, the temperature change is large in the bathroom, and the amount of expansion and contraction varies depending on the materials constituting the bathtub, the wall surface, and the joint material. As a result, a tensile or compressive force is applied to the adhesive. For this reason, it is preferable to use an elastic adhesive as the adhesive used in the present invention. According to this, even if a tensile or compressive force is applied to the adhesive, problems such as peeling are less likely to occur.

  Further, the structural features of the joint material according to the present invention are joint materials used in the joint material mounting structure described above, and a surface seal portion installed along the surface side portion of the bathtub flange, and a surface seal And the insertion portion having a recess formed on the bathtub flange side, and the vertical width of the recess is set to be shorter than the vertical length of the bathtub flange. It is in. According to the present invention, a joint material suitable for the joint material mounting structure described above can be obtained.

  Another structural feature of the joint material according to the present invention is that the depth of the recess is substantially the same over the entire recess. According to the joint material according to the present invention, an adhesive layer having a substantially uniform thickness can be formed by filling the recess with an adhesive. For this reason, unevenness in the adhesive strength between the bathtub flange and the joint portion of the joint material does not occur. According to this, the sealing performance by an insertion part improves, and more reliable water stop is attained. In addition, the depth of the recessed part in this invention is a dimension from an opening edge part to a recessed part bottom.

  Further, another structural feature of the joint material according to the present invention is that a step portion (22c) is formed below the concave portion in the insertion portion, and the upper portion protrudes toward the bathtub (14) from the lower side. is there.

  According to the joint material according to the present invention, first, the tip end side of the insertion portion is inserted into the gap, and the joint material is temporarily fixed to the bathtub flange in a state where the stepped portion is applied to the corner portion between the upper surface and the side surface of the bathtub flange. be able to. Then, after filling the concave portion with the adhesive, the joint material can be attached to the gap between the bathtub flange and the wall surface portion by a simple operation by pushing the insertion portion into the gap. If you try to attach a joint material that has been filled with adhesive in the recess in advance to the gap between the bathtub flange and the wall, care must be taken to prevent the adhesive from sticking to other parts, making it difficult to work. However, when the joint material is attached using the stepped portion as described above, such attention is not necessary and workability is improved.

It is the perspective view which showed the bathroom where the joint material which concerns on one Embodiment of this invention was attached. It is the perspective view which showed the joint material which concerns on one Embodiment of this invention. It is sectional drawing of the joint material which concerns on one Embodiment of this invention. It is sectional drawing which showed the state which filled the recessed part of the joint material temporarily fixed to the clearance gap between a flange part and a front wall surface part with the adhesive agent. It is sectional drawing which showed the state which attached the joint material to the clearance gap between a flange part and a front wall surface part. It is sectional drawing of the joint material which concerns on other embodiment of this invention. It is sectional drawing of the joint material which concerns on other embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a bathroom 10 to which a joint material 20 according to this embodiment is attached. In the bathroom 10, a window 12 is provided in the front wall surface portion 11, and a bathtub 14 is installed in a portion of the floor surface 13 on the window 12 side. And the left and right (front and rear in FIG. 1) side portions of the bathtub 14 face the left wall surface portion (not shown) and the right wall surface portion 15, respectively. Moreover, the counter 16 is installed in the part along the right wall surface part 15 in the front side (FIG. 1 right side) of the bathtub 14. As shown in FIG.

  A mirror 17 and a storage shelf 18 are provided on the wall surface formed above the counter 16. Further, the height of the upper surface of the counter 16 is set to be substantially equal to the height of the upper surface of the flange portion 14 a of the bathtub 14. And the joint material 20 is attached to the clearance gap which arises in the boundary part with the left wall surface part in the edge part of the flange part 14a of the bathtub 14, the front wall surface part 11, and the right wall surface part 15 (the joint material 20 on the left wall surface part side). Is not shown.) A joint material 20 is also attached to a gap formed between the upper edge portion of the counter 16 and the right wall surface portion 15. A lower portion of the flange portion 14a on the front surface of the bathtub 14 is covered with an apron 14b.

  The joint material 20 is formed by so-called two-color molding in which a hard material and a soft material are simultaneously extruded, and is configured as an elongated member having elasticity. As shown in FIGS. 2 and 3, the joint material 20 includes a surface seal portion 21 located at an upper portion, an insertion portion 22 extending downward from a lower portion of the surface seal portion 21, and a concave surface of the insertion portion 22 ( 2 is composed of a pair of elastic fins 23 and 24 formed on the surface facing the front wall portion 11 and the like with a space therebetween in the vertical direction, and the surface seal portion 21 is substantially horizontal. The insertion portion 22 extending vertically is provided with a substantially T-shaped cross-sectional shape that is curved.

  The surface seal part 21 is a boundary between the bathtub close part 21a disposed on the bathtub 14 side, the wall close part 21b disposed on the wall surface side such as the front wall part 11, and the bathtub close part 21a and the wall close part 21b. It is comprised with the connection part 21c which protrudes below from a part. The bathtub close contact portion 21a and the wall close contact portion 21b are formed in an elongated plate shape having a cross-sectional shape inclined so that the bathtub close contact portion 21a side is lower than the wall close contact portion 21b side. Moreover, the width | variety of the bathtub close part 21a is set to about twice the width of the wall surface close part 21b. The connecting part 21c is thicker than the bathtub close part 21a and the wall face close part 21b, and the length in the vertical direction is about the same as the thickness.

  The insertion part 22 extends straightly from the lower part of the coupling part 21c of the surface seal part 21 and then extends so as to be inclined toward the wall surface close part 21b. And the cross-sectional shape of the straight part of the upper part side of the insertion part 22 is formed so that the recessed part 25 may be provided in the surface at the side of the bathtub 14 of a thick plate-shaped body, and it may become a substantially U shape. The depth of the recess 25 is constant, a step 22 a is formed at the top of the recess 25, and a protrusion 22 b is formed at the bottom of the recess 25. The surface on the bathtub 14 side of the connecting portion 21c, the stepped portion 22a, and the protruding portion 22b is formed so as to be located on the same surface. Further, the width between the stepped portion 22a and the protruding portion 22b (concave portion 25) is set to be shorter than the length of the flange portion 14a of the bathtub 14 in the vertical direction.

  The curved portion on the lower side of the insertion portion 22 is formed to have the same thickness as the portion where the concave portion 25 of the straight portion on the upper side is formed. The concave side of the curved portion is smoothly connected to the upper side, and a step is formed between the convex side and the protrusion 22b, and a step 22c is formed by this step. The elastic fin portions 23 and 24 are both thicker at the proximal end side on the insertion portion 22 side and gradually thinner toward the distal end side, and the elastic fin portion 23 corresponds to the approximate center of the concave portion 25 in the vertical direction. The elastic fin portion 24 extends obliquely upward from the portion, and extends obliquely upward in parallel with the elastic fin portion 23 from the portion corresponding to the protrusion 22b.

  The surface seal portion 21 and the elastic fin portions 23 and 24 are made of a soft material (the hatched portion in FIGS. 2 to 7), and the insertion portion 22 is made of a hard material. As the soft material constituting the surface seal portion 21 and the elastic fin portions 23 and 24, olefin elastomer, styrene elastomer, soft acrylic, or the like can be used. Moreover, as a hard material which comprises the insertion part 22, ABS (acrylonitrile butadiene), PP (polypropylene), PE (polyethylene), hard vinyl chloride, POM (polyacetal), PET (polyethylene terephthalate) etc. can be used.

  Next, the joint material 20 configured in this manner is connected between the bathtub 14 installed in the bathroom 10 and the left wall surface portion, the front wall surface portion 11 and the right wall surface portion 15, and between the counter 16 and the right wall surface portion 15. A method of forming the joint material attachment structure by attaching to the gaps respectively generated between them will be described. First, while measuring the length of the clearance gap which attaches the joint material 20, the joint material 20 is cut | disconnected to the length of the measured value.

  Next, the insertion part 22 is sequentially inserted into the gap from one end of the gap, for example, the front upper side portion of the flange portion 14a of the bathtub 14 in the gap between the bathtub 14 and the left wall surface. At this time, as shown in FIG. 4 (showing the portion of the front wall surface portion 11), the curved portion of the insertion portion 22 is inserted into the gap, and the step portion 22c is positioned at the upper edge of the flange portion 14a. And temporarily stop. In that case, the insertion part 22 of the joint material 20 enters between the flange part 14a of the bathtub 14, the front wall surface part 11, etc., deform | transforming so that it may approximate linear form. In this state, the elastic adhesive 26 is filled in the recess 25. In this case, an appropriate amount of the elastic adhesive 26 can be filled by providing the recess 25.

  In addition, each member in the bathroom 10 differs in the amount of expansion and contraction caused by a temperature change depending on the difference in the material. Therefore, whenever the temperature in the bathroom 10 changes, stress is also applied to the adhesive layer. An elastic adhesive 26 is used as an adhesive that can withstand this stress. In consideration of workability, the elastic adhesive 26 is preferably a one-component adhesive rather than an adhesive that is used by mixing a plurality of liquids. For this reason, it is preferable to use an elastic adhesive based on a modified silicone resin or an epoxy-modified silicone elastic adhesive as the elastic adhesive 26.

  When the filling of the elastic adhesive 26 into the concave portion 25 is completed, the insertion portion 22 is further inserted between the flange portion 14a of the bathtub 14 and the front wall surface portion 11 and the like. Thereby, the wall surface close contact portion 21b of the surface seal portion 21, the elastic fin portions 23 and 24, and the lower end portion of the insertion portion 22 are pressed against the front wall surface portion 11 and the like, and the step portion 22a of the insertion portion 22 and the protruding portion. 22b is urged toward the flange portion 14a and presses against the side surface of the flange portion 14a. At this time, the elastic adhesive 26 fills the space formed by the inner surface of the recess 25 and the side surface of the flange portion 14a, and the surplus portion is a bathtub close portion 21a of the surface seal portion 21 as shown in FIG. And the upper surface of the flange portion 14a.

  By this elastic adhesive 26, the upper part of the insertion part 22, the side surface of the flange part 14a, the bathtub close part 21a of the surface seal part 21 and the upper surface of the flange part 14a are bonded and fixed. At this time, the elastic fin portions 23 and 24 are crushed and closely contact the front wall surface portion 11 and the like. As a result, the joint material 20 is fixed between the flange portion 14 a of the bathtub 14 and the wall surface portion such as the front wall surface portion 11. In addition, the lower side part of the insertion part 22 will pass through the clearance gap between the flange part 14a, the front wall surface part 11, etc., and will be in the state along the front wall surface part 11 grade | etc.,. Moreover, when the elastic adhesive 26 is extruded outside from between the bathtub close-contact part 21a of the surface seal part 21 and the upper surface of the flange part 14a, the elastic adhesive 26 extruded to the outside is wiped off.

  Moreover, while the insertion part 22 is inserted between the flange part 14a of the bathtub 14, and the front wall surface part 11 grade | etc., The bathtub close part 21a of the surface seal part 21 closely_contact | adheres to the upper surface of the flange part 14a, and a wall surface The close contact portion 21b is in close contact with the front wall surface portion 11 and the like, and the space between the upper surface edge of the flange portion 14a and the front wall surface portion 11 and the like is sealed. This sealing state is maintained by fixing the joint material 20 between the flange portion 14a of the bathtub 14 and the front wall surface portion 11 and the like. Similarly, the joint material 20 is attached to the gap formed between the counter 16 and the right wall surface portion 15. As a result, a joint material mounting structure can be formed.

  Thus, the joint material 20 used in the joint material mounting structure according to the present embodiment includes the surface seal portion 21, the insertion portion 22, and the elastic fin portions 23 and 24. And the surface seal part 21 is installed along the surface side part of the flange part 14a, block | closes between the upper end edge part of the flange part 14a, the front wall surface part 11, etc., and the insertion part 22 is the flange part 14a. Is inserted into the gap between the front wall surface portion 11 and the like, and the surface seal portion 21 is disposed at an appropriate position in pressure contact with the side surface of the flange portion 14a and the front wall surface portion 11 and the like.

  Moreover, the recessed part 25 is formed in the surface at the side of the flange part 14a of the insertion part 22, The width | variety of the up-down direction of this recessed part 25 is shorter than the length of the up-down direction of the flange part 14a. For this reason, a substantially sealed space is formed between the inner surface of the recess 25 and the side surface of the flange portion 14a. Since the space is filled with the elastic adhesive 26, the flange portion 14 a and the insertion portion 22 are bonded and fixed by the elastic adhesive 26. Moreover, the surplus part of the elastic adhesive 26 is pushed in between the bathtub close part 21a of the surface seal part 21 and the upper surface of the flange part 14a, and bonds and fixes the bathtub close part 21a and the upper surface of the flange part 14a.

  For this reason, even if vertical displacement occurs in the bathtub 14 or expansion and contraction occur in the joint material 20, the joint material 20 moves according to the displacement of the flange portion 14 a or is formed by the elastic adhesive 26. Since the adhesive layer is deformed, the joint material 20 does not rise from the gap. Further, since the depth of the concave portion 25 is the same throughout, and the thickness of the adhesive layer formed of the elastic adhesive 26 is uniform, the bonding strength between the flange portion 14a and the insertion portion 22 is uneven. No longer occurs. Thereby, the joint material 20 is firmly bonded by the flange portion 14a, and the joint material 20 can be more reliably prevented from being lifted from the gap.

  Furthermore, by providing the protrusion 22b below the recess 25 in the plug-in portion 22, a step 22c is formed at the lower portion thereof, the upper portion protruding toward the bathtub 14 from below. For this reason, the joint material 20 is positioned on the flange portion 14a in a state where the step portion 22c is applied to the corner portion between the upper surface and the side surface of the flange portion 14a, and the recess 25 is filled with the elastic adhesive 26. The insertion portion 22 can be pushed into the gap. For this reason, when pushing the insertion part 22 in a clearance gap, while being able to prevent the elastic adhesive 26 from attaching to another part, workability | operativity when attaching the joint material 20 improves.

  FIG. 6 shows a joint material 30 according to another embodiment of the present invention. In the joint material 30, a protrusion 31 having the same size as the protrusion 32 b formed below the recess 35 is formed at the center in the vertical direction of the recess 35. The structure of the other part of the joint material 30 is the same as that of the joint material 20 described above. Accordingly, the same parts are denoted by the same reference numerals and the description thereof is omitted. According to this joint material 30, when the insertion portion 22 of the joint material 30 is inserted between the flange portion 14a and the front wall surface portion 11 and the like, the protrusion 31 functions as a deformation preventing member, and the recess 35 is crushed. In order to suppress (the depth of the recess 35 is reduced), the thickness of the adhesive layer formed of the elastic adhesive 26 can be made appropriate. The other effects of the joint material 30 are the same as those of the joint material 20 described above.

  FIG. 7 shows a joint material 40 according to still another embodiment of the present invention. In this joint material 40, the portion extending in the vertical direction on the inner surface of the recess 45 is formed of a rough surface on which irregularities are formed. The structure of the other part of the joint material 40 is the same as that of the joint material 20 described above. Therefore, the same parts are denoted by the same reference numerals and the description thereof is omitted. According to this joint material 40, since the concave portion 45 that is the adherend surface is roughened, the adhesive strength can be increased. The other effects of the joint material 40 are the same as those of the joint material 20 described above.

  Further, the joint material according to the present invention is not limited to the above-described embodiment, and can be appropriately modified and implemented within the technical scope of the present invention. For example, in the above-described embodiment, an elastic adhesive based on a modified silicone resin or an epoxy-modified silicone-based elastic adhesive is used as the elastic adhesive 26. However, the elastic adhesive 26 may be other than this. Things can also be used. In the above-described embodiment, the two elastic fin portions 23 and 24 are provided. However, the number of elastic fin portions may be one or three or more. The elastic fin portion may be omitted. Furthermore, in the joint material 30 shown in FIG. 6, only one protrusion 31 is provided, but a plurality of protrusions may be provided at intervals in the vertical direction. Moreover, it can change suitably also about the shape of each part which comprises the joint material 20,30,40.

  DESCRIPTION OF SYMBOLS 11 ... Front wall surface part, 14 ... Bathtub, 14a ... Flange part, 15 ... Right wall surface part, 20, 30, 40 ... Joint material, 21 ... Surface seal part, 22 ... Insertion part, 22c ... Step part, 25, 35 , 45 ... recess, 26 ... elastic adhesive.

Claims (4)

It is an attachment structure of a joint material that is attached to a gap between a bathtub flange and a wall portion adjacent to the bathtub flange,
The joint material is
A surface seal portion installed along the surface side portion of the bathtub flange;
Extending from the surface seal portion toward the inner side of the gap, and a plug portion formed with a recess on the bathtub flange side,
The vertical width of the recess is set to be shorter than the vertical length of the bathtub flange, and a space is formed between the inner surface of the recess and the side of the bathtub flange, and an adhesive is formed in the space. A joint structure for filling joint material, which is filled. A joint material used in the joint material mounting structure according to claim 1,
A surface seal portion installed along the surface side portion of the bathtub flange;
Extending from the surface seal portion toward the inner side of the gap, and a plug portion formed with a recess on the bathtub flange side,
A joint material in which the vertical width of the recess is set to be shorter than the vertical length of the bathtub flange.   The joint material according to claim 2, wherein the depth of the recess is substantially the same throughout the recess.   The joint material according to claim 2 or 3, wherein a stepped portion is formed below the concave portion in the insertion portion so that the upper portion protrudes toward the bathtub side from below.

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