JP2010031595A - Joint member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint member capable of effectively securing sealing performance even when a clearance between a wall surface and a bathtub or a counter is large. <P>SOLUTION: The joint member has a head part 2 closing up the clearance 104 between the wall surface 102 and the bathtub 101 or the counter; a leg part 3 extending downward from the lower face of the head part 2; and a fin part 4 formed projecting to the bathtub 101 side from the leg part 3. The leg part 3 is formed in S-shape in a cross section perpendicular to a longitudinal direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a joint material for a bathtub that is attached to a gap between a bathtub and a wall surface or between a counter and a wall surface.

  Conventionally, in the bathroom 100 as shown in a plan view in FIG. 4, a gap 104 is formed between the bathtub 101 and the wall surface 102 or between the counter 103 and the wall surface 102, and this gap is filled with a caulking agent such as silicon. And closed it. However, this coking operation is complicated and requires skill. In addition, the caulking agent is prone to mold, and when replacing the bathtub, there is a problem that a new caulking agent must be applied after removing the old caulking agent.

  Therefore, in order to solve this problem, a joint joint formed from an elastomer or the like instead of a caulking material has been generally used. Patent documents 1 to 3 disclose conventional joints. Each of these joints includes a head that closes the gap between the wall surface and the bathtub, and a leg that extends downward from the lower surface of the head. The leg is formed with a fin that protrudes toward the bathroom. Closes the gap between the wall surface and the bathtub, and the fin portion presses against the bathtub flange, thereby ensuring the sealing performance between the bathtub and the wall surface portion.

  An example of such a conventional joint is shown as a cross-sectional view in FIG. The conventional joint 110 includes a head 111 that closes a gap between the wall surface and the bathtub, and a leg 112 that extends downward from the lower surface of the head. The leg 112 has an upward slope and protrudes toward the bathroom. A fin portion 113 is formed. Moreover, the lower end of the leg part 112 is equipped with the tail part 114 curved to the wall surface side.

  When such a conventional joint 110 is inserted into the gap between the bathtub 101 and the wall surface 102, as shown in a cross-sectional view in FIG. 6, when the gap g is about 1 mm to 3 mm, the head 111 is placed between the wall surface 102 and the bathtub. Sealing performance between the bathtub and the wall surface portion is ensured by closing the gap with the flange 101 and pressing the flange portion 113 with the flange 101a of the bathtub 101 while being elastically deformed. Further, since the tail 114 repels against the wall surface 102 and presses the fin portion 113 against the bathtub 101, the fin portion 113 is more strongly pressed against the bathtub 101, and further, the fin portion 113 is inclined upward. This prevents the joint 110 from moving upward.

JP 2005-211167 A JP 2003-190036 A JP 2006-230745 A

  However, the conventional joint described above satisfies the performance required as described above when the distance g between the bathtub and the wall surface is about 1 mm to 3 mm. However, as shown in FIG. If the gap between the counter 103 and the wall surface 102 is expanded to 3 mm or more due to the dimensional variation of the member or the warp of the member, the fin portion 113 is strongly pressed against the bathtub 101 even with the repulsive force of the tail portion 114. The joint 110 may rise upward and come off.

  This invention is made | formed in view of the said problem, and it aims at providing the joint member which can ensure sealing performance effectively, even when the clearance gap between a wall surface and a bathtub or a counter is wide.

  In order to achieve the above object, the joint member of the present invention is formed by projecting the head portion closing the gap between the wall surface and the bathtub or the counter, the leg portion extending downward from the lower surface of the head portion, and protruding from the leg portion to the bathroom side. The leg portion is formed in an S shape in a cross section perpendicular to the longitudinal direction.

  The leg portion is preferably composed of a leg portion main body and a folded piece formed by folding upward from the lower end of the leg main body toward the wall surface.

  The folded piece preferably has a cross-sectional shape along the lower half of the leg body.

  The joint member is preferably made of a soft resin material for the head and fins and a hard resin material for the other parts.

  According to the joint member of the present invention, the head portion closes the gap between the wall surface and the bathtub or the counter, the fin portion abuts against the bathtub or the counter and exhibits the sealing performance, and the leg portion is formed in an S-shape in cross-section. As a result, the two points of the leg part abut against the wall surface, and the curved surface part and fin part sandwiched between the two points are pressed against the bathtub or counter, so that even if the gap is wide, the sealing performance is effectively exhibited. Can do.

  When the leg portion includes a folded piece formed by folding upward from the lower end to the wall surface side, the folded piece abuts against the wall surface, so that even when the gap is wide, the sealing performance can be effectively exhibited.

  When the folded piece has a cross-sectional shape along the lower half of the leg main body, the leg is easily inserted into a small gap by the folded piece along the lower half of the leg main body.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same parts as those in the prior art are denoted by the same reference numerals, and description thereof is omitted. 1 to 3 are sectional views showing a joint member according to an embodiment of the present invention.

  Since the joint member 1 is formed into a long shape as a whole by extrusion molding, the cross-sectional shape is substantially the same at any location, and the head 2 that closes the gap 104 between the wall surface 102 and the bathtub 101, and the head 2 The leg part 3 extends downward from the lower surface of the base plate and is inserted into the gap 104, and the fin part 4 is formed so as to protrude from the leg part 3 toward the bathroom. At the time of installation, it is installed along the gap between the wall surface 102 and the bathtub 101, cut into a required length and inserted into the gap.

  The material of the joint member 1 is an elastic resin, but it is desirable to use a hard resin for the leg 3 and a soft resin for the head 2 and the fin 4. As the hard resin, thermoplastic resins such as polypropylene (PP), polyethylene (PE), and hard polyvinyl chloride resin can be used. As the soft resin, soft polyvinyl chloride resin, polyolefin elastomer (TPO) and the like can be used. A thermoplastic resin or a thermoplastic elastomer can be used. Each resin is simultaneously molded by so-called two-color molding.

  The head 2 includes a wall surface abutting piece 21 that abuts against and closely contacts the wall surface, and a bathtub abutting piece 22 that abuts and adheres to the bathtub, and the intermediate portion 23 located in the middle of the head portion 2 has a concave upper surface. The leg 3 is joined to the lower surface. The bathtub contact piece 22 is formed thinner toward the tip, and the lower surface is flat. Since the upper surface of the intermediate portion 23 is formed in a concave shape, the boundary portion between the upper surface of the bathtub 101 and the wall surface 102 becomes a gentle corner R, and the cleanability is good.

  The leg part 3 is formed by folding the upper half on the wall surface side and the lower half on the bathtub 101 side so that the leg part body 31 is formed in an S-shape in a sectional view, and folded from the lower end of the leg body 31 upward to the wall surface side. And the folded piece 32 formed.

  More specifically, the leg main body 31 is curved so as to extend from the lower surface of the head 2 and swell in the wall surface direction, and comes into contact with the wall surface 102 in a surface contact state, and the first curved portion 31a. 2nd curved part 31b which abuts in the state of line contact on the lower end corner part of flange 101a of bathtub 101 as shown in Drawing 2 and 3, and is curving so that it may swell in the lower part of the bathroom. A convex portion 31c is provided on the wall surface side of the first curved portion 31a, and the friction between the joint member 1 and the wall surface 102 is increased to enhance the retaining effect.

  The folded piece 32 is formed at the lower end of the leg main body 31 by folding upward on the wall surface side via the folded portion 33, and has a cross-sectional shape along the lower half of the leg main body 31, that is, along the second curved portion 31b. The third curved portion 32a is curved so as to swell toward the bathroom. Here, the tip of the folded portion 33 is processed into a protruding shape, so that it can be easily inserted into the gap 104. Further, the tip 32b of the folded piece 32 comes into contact with the wall surface 102 in a line contact state.

  The fin portion protrudes from the inside of the bathroom of the first curved portion 31a of the leg main body 31, has an upward slope, and is formed so as to become thinner toward the tip.

  When the joint member 1 configured as described above is inserted into the gap 104 between the wall surface 102 and the bathtub 101, the folded piece 32 is elastically deformed so as to overlap the lower half of the leg main body 31, and the leg 3 is Insert into the gap 104. At this time, since the bending direction of the folded piece 32 and the lower half of the leg main body 31 is the same, the substantial thickness of the leg 3 can be reduced and the gap g of the gap 104 is narrow. However, the leg part 3 can be inserted easily. In addition, since the tip of the folded portion 33 is processed into a protruding shape, it can be easily inserted into the gap 104.

  When the leg 3 is inserted sufficiently deep into the gap 104, the lower surface of the bathtub contact piece 22 of the head 2 comes into liquid-tight contact with the upper surface of the flange 101a of the bathtub 101. Further, the tip of the wall surface abutting piece 21 of the head 2 is in liquid-tight contact with the wall surface 102, and the head 2 covers the gap 104 and can be sealed so that water does not enter the gap 104.

  Further, since the fin portion 4 is made of a soft resin material, when the gap g of the gap 104 is wide as shown in FIG. 2, the vicinity of the tip is elastically deformed, and when the gap g of the gap 104 is narrow as shown in FIG. Since the vicinity of the center is elastically deformed, it comes into surface contact with the side surface of the flange 101a of the bathtub 101 to further enhance the sealing effect. Further, since the fin portion 4 is provided to be inclined upward, the effect of preventing the joint member 1 from coming out of the gap 104 is also exhibited.

  Since the leg main body 31 has an S-shaped cross section, the first curved portion 31 a is in surface contact with the wall surface 102, and the vicinity of the second curved portion 31 b is connected to the corner 101 b of the lower edge of the flange 101 a of the bathtub 101. In contact with each other, the sealing effect is further enhanced in these portions. In particular, as shown in FIG. 3, when the gap g of the gap 104 is narrow, the leg main body 31 is elastically deformed so as to approach a straight line, so that the first curved portion 31a and the second curved portion 31b are strongly strengthened by this restoring force. Impressed and enhances the effect. Furthermore, since a part of the second curved portion 31 b enters the lower side of the flange 101 a of the bathtub 101, the effect of preventing the joint member 1 from coming out of the gap 104 is also exhibited.

  Further, the tip 32b of the folded piece 32 is in line contact with the wall surface 102, and the sealing effect is further enhanced at this portion. Here, since the leg portion 3 is made of a hard resin material, a strong elastic restoring force works, and a repulsive force is generated between the folded piece 32 and the leg main body 31 as shown by an arrow F in FIGS. work. Therefore, even when the gap g of the gap 104 is wide as shown in FIG. 2, the fin portion 4, the second curved portion 31b, and the tip 32b of the folded piece 32 are strongly pressed against the flange 101a or the wall surface 102, and the sealing effect And the retaining effect can be kept high.

  Thus, according to the joint member 1, the head portion closes the gap between the wall surface and the bathtub or the counter, the fin portion contacts the bathtub or the counter and exhibits the sealing performance, and the leg portion is S-shaped in cross-section. The second curved portion is an arch-shaped curved portion sandwiched between the two points of the leg, that is, the first curved portion 31a and the tip of the folded piece 32 are in contact with the wall surface. Since 31b and the fin part 4 are pressed against the bathtub 101, even when the gap 104 is wide, the sealing performance can be effectively exhibited.

  As described above, the joint member of the present invention is formed to protrude from the leg portion to the bathroom side, the head portion closing the gap between the wall surface and the bathtub or the counter, the leg portion extending downward from the lower surface of the head portion. The leg portion is formed in an S shape in a cross-sectional view perpendicular to the longitudinal direction, and can be implemented in various forms without departing from the gist thereof. For example, the material and dimensions of the joint member are merely examples, and can be set to appropriate dimensions using other appropriate materials. Moreover, although this embodiment demonstrated the case where a joint member was inserted in the clearance gap between a wall surface and a bathtub, it is clear that it can be used also for the clearance gap between a wall surface and a counter.

It is sectional drawing by the surface perpendicular | vertical to a longitudinal direction which shows the joint member which concerns on embodiment of this invention. It is sectional drawing which shows the state which inserted the joint member of FIG. 1 in the clearance gap between a bathtub and a wall surface. It is sectional drawing which shows the state which inserted the joint member of FIG. 1 in the clearance gap between a bathtub and a wall surface, when the clearance gap between a bathtub and a wall surface is wider than FIG. It is a top view which shows a bathroom typically. It is sectional drawing by the surface perpendicular | vertical to a longitudinal direction which shows the conventional joint member. It is sectional drawing which shows the state which inserted the joint member of FIG. 5 in the clearance gap between a bathtub and a wall surface. It is sectional drawing which shows the state which inserted the joint member of FIG. 5 in the clearance gap between a bathtub and a wall surface, when the clearance gap between a bathtub and a wall surface is wider than FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Joint member 2 Head part 3 Leg part 4 Fin part 21 Wall surface contact piece 22 Bath contact part 31 Leg part main body 31a First curved part 31b Second curved part 31c Convex part 32 Folding piece 32a Third curved surface 32b Tip 33 Folding Part 101 Bathtub 102 Wall surface 103 Counter 104 Crevice

Claims (4)

A joint member that closes the gap between the wall surface and the bathtub or counter,
A head that covers the gap; a leg that extends downward from the lower surface of the head; and a fin that is inserted into the gap and protrudes from the leg to the inside of the bathroom. A joint member formed in an S shape in a cross section perpendicular to the longitudinal direction of the gap.   The leg portion includes a leg main body formed in an S shape in a cross section perpendicular to the longitudinal direction of the gap, and a folded piece formed by folding the leg main body upward from the lower end of the leg main body. The joint member according to claim 1, which is characterized.   The joint member according to claim 2, wherein the folded piece has a cross-sectional shape along a lower half of the leg main body in a cross section perpendicular to a longitudinal direction of the gap.   The joint member according to any one of claims 1 to 3, wherein the head portion and the fin portion are made of a soft resin material, and the leg portion is made of a hard resin material.