JP2004019228A - Joint member and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint member capable of properly covering a joint formed of a bending edge section without incurring so much of the cost under a suitable working environment, having small variations in the result and facilitating the handling of the joint member even by an unexperienced worker. <P>SOLUTION: The joint member includes the head section 13 covering the joint by abutting on the surface of a bath-tub 1 and the surface of a wall 2 of a bathroom and the leg section 14 extended downward from the rear side of the head section 13. When the edge section of the bath-tub 1 is the bending edge section 1a bent in the direction of the depth, notches 14d and 14e partially removing the leg section 14 in the longitudinal direction are formed in positions corresponding to the bending edge section 1a and, at the same time, a fixing material 12 fixing the head section 13 to the shape in parallel with the bending edge section 1a is fixed to the other part of the leg section 14. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a long joint member attached to a joint formed by both edges of each structure when two structures are arranged adjacent to each other, and a method for manufacturing the same. The joint member according to the present invention is suitable for concealing joints between a bathroom wall and a bathtub, between a bathroom wall and a washbasin, between a kitchen wall and a sink, and the like.
[0002]
[Prior art]
When the first structure and the second structure are arranged adjacent to each other, for example, like a bathroom wall and a bathtub, they are formed by the edge of the first structure and the edge of the second structure. Generally, a sealant is used to cover the joint. This sealant is made of a paste-like silicone resin or the like, and has a property of curing in the atmosphere. For this reason, if this sealant is applied to joints with a certain thickness, the sealant hardens over time, and the joints can be concealed.
[0003]
However, when the above-mentioned sealant is used, since the sealant must be manually applied to the joints, the quality of the finish depends on the skill of the operator, and the variation in the finish tends to be large. In particular, when the edge of the first structure and / or the edge of the second structure is a bent edge bent in the depth direction of the joint, the difficulty of the operation is increased, and the sealant is used. There is a possibility that the application amount to the joint is too large and the appearance deteriorates, or conversely, the application amount is too small and a portion where the joint is not concealed may occur. In addition, when a volatile solvent is contained in the sealant, the solvent may be volatilized during the work, and the working environment may be deteriorated. In particular, when the work is performed in a small and easily sealed place such as a bathroom, the danger is high, and the time until the curing of the sealant is completed becomes long.
[0004]
For this reason, the joint member described in JP-A-8-187198, JP-A-7-82910 or JP-A-7-76940 may be employed. These joint members are elongate to be attached to the joint, and include a head and legs that extend from the back surface of the head in the depth direction of the joint when attached to the joint. These joint members can be integrally formed as a long member having a head and a leg. When these joint members are used, joint members having a necessary length are prepared in advance, and their legs are inserted into the joint. Thereby, the leg is held in the joint, and the head can abut on the surface of the first structure and the surface of the second structure to hide the joint. Thus, according to these joint members, the joint can be easily concealed even by a worker who does not have advanced skills. In addition, since the cross-sectional shape of the head of these joint members is defined by an extruder or the like, the thickness of the head does not become too thick or too thin depending on the skill of the operator, and the finish varies. Is also gone. Furthermore, since these joint members are manufactured in advance in a factory, there is no need to use a volatile solvent during the construction work, and the working environment is not deteriorated.
[0005]
[Problems to be solved by the invention]
However, since the conventional joint member is merely a linear elongated body formed by extrusion integral molding or the like, it is difficult to suitably cover the joint formed by the bent edges as it is. On the other hand, preforming the joint member into a shape along the bent edge portion is not practical since many bent edges may be present, and causes an increase in cost.
[0006]
For this reason, it is conceivable to prepare a long joint member and form a cutout in which the leg is partially removed in the longitudinal direction at a position corresponding to the bent edge of the joint member. This allows the rest of the legs to approach or move away from each other due to the notch, so that the head can be bent while inserting the legs into the joint formed by the bent edges. It is considered that joints can be suitably hidden.
[0007]
However, in the joint member in which the notch is simply formed in the leg portion in this manner, the joint member is easily restored to the original long shape by the elastic force of the head. For this reason, the leg part held in the joint formed by the bent edge part may come off from the joint, and a good finish may be impaired. In addition, the notch has low strength due to the removal of the leg, stress is concentrated during construction work and transportation, and the end of the notch is caught on the bent edge etc. The member may be damaged.
[0008]
The present invention has been made in view of the above-described conventional circumstances, and is easy to handle, has a small variation in finish, and has a good working environment under a suitable working environment, even for workers who do not have advanced skills. It is an object of the present invention to provide an joint member that can appropriately conceal joints formed by bent edges without increasing costs.
[0009]
[Means for Solving the Problems]
When the first structure and the second structure are arranged adjacent to each other, the joint member according to the present invention provides a joint formed by an edge of the first structure and an edge of the second structure. A long head to be mounted, the head being in contact with the surface of the first structure and the surface of the second structure to conceal the joint, and the head being mounted on the joint. A joint member extending from the back surface in the depth direction of the joint and having a leg held in the joint;
[0010]
When the edge of the first structure and / or the edge of the second structure is a bent edge bent in the depth direction, the leg is elongated at a position corresponding to the bent edge. A notch partially removed in the direction is formed, and a fixing material for fixing the head in a shape along the bent edge is fixed to the rest of the leg.
[0011]
In the joint member according to the present invention, a cutout is formed at a position corresponding to the bent edge, in which the leg is partially removed in the longitudinal direction. For this reason, it becomes possible for the rest of the leg to approach or move away from each other by the notch, and it becomes possible to curve the head. In addition, in this joint member, since the fixing material is fixed to the rest of the legs, the head is fixed in a shape along the bent edge, and the curved head is formed into an original elongated shape (linear shape) by elastic force. ) Will not be restored. Further, the strength of the bent portion reduced by the notch is reinforced by the fixing material.
[0012]
For this reason, according to this joint member, the leg part held in the joint formed by the bent edge does not come off from the joint, and even a worker who does not have a high level of skill can handle it easily and well. Joints can be concealed under a perfect finish. In addition, since the cross-sectional shape of the head of the joint member is defined by an extruder or the like, the thickness of the head does not become too thick or too thin depending on the skill of the operator, and variations in the finish are reduced. Become smaller. Further, since this joint member can be produced in advance at a factory, it is not necessary to use a volatile solvent at the time of construction work, and the working environment is not deteriorated.
[0013]
Therefore, according to this joint member, even a worker who does not have a high level of skill can easily handle the work piece, have a small variation in finish, and bend under a suitable working environment without significantly increasing the cost. Joints formed by the edges can be suitably hidden.
[0014]
The shape of the fixing material is not limited, but preferably has a plate shape. Since the joint is usually narrow, if the fixing material is plate-shaped, the fixing material does not become an obstacle even when the joint member of the present invention is mounted on such a joint, and the joint is concealed. Can be.
[0015]
Preferably, the edge of the fixing member is in contact with the back surface of the head. In this case, the head can be surely formed in a shape along the bent edge, and the joint formed by the bent edge can be reliably concealed. In this case, it is more preferable that a fitting groove into which the peripheral portion of the fixing member fits is formed on the back surface of the head. In this case, by fitting the peripheral portion of the fixing material into the fitting groove of the head, the head can be more reliably shaped along the bent edge, and the joint formed by the bent edge can be formed. Can be more reliably concealed.
[0016]
It is preferable that a part of the peripheral portion of the fixing member is formed in a shape corresponding to the bent edge portion, and another part of the peripheral portion of the fixing material is formed in a shape corresponding to another bent edge portion having a different shape. In this case, it is possible to share a single-shaped fixing member for at least two joint members corresponding to bent edges having different shapes. Therefore, the number of parts can be reduced, and the manufacturing cost can be reduced.
[0017]
The material of the fixing material is not necessarily limited, but it is preferable that the fixing material is made of a material compatible with the material forming the leg portion, and that the fixing material and the leg portion are thermally welded. If the fixing material is compatible with the material forming the leg, the fixing material and the leg can be easily heat-welded, and the adhesive strength can be increased. For this reason, as a means for fixing the leg and the fixing member, an adhesive, a stopper, or the like is not required, and the manufacturing cost can be reduced. Here, as the compatible material, both the fixing material and the legs may be made of polypropylene (PP), or both may be polyvinyl chloride (PVC). Note that it is preferable to use a transparent or translucent fixing material. In this case, when the fixing material is fixed to the leg, the fixing position can be visually confirmed, so that the fixing material can be accurately and easily positioned.
[0018]
It is preferable that the leg has a locking portion that can be locked to the edge of the first structure and / or the edge of the second structure. In this case, when the joint member is mounted in the joint, the engaging portion is engaged with the edge of the first structure and / or the edge of the second structure. Can be attached to
[0019]
It is preferable that the locking portion has a portion that is thicker than the joint width in the cross section, and has a projection that gradually becomes thinner toward the tip from the portion. In this case, when the leg is inserted into the joint and the locking portion is locked to the edge of the first structure and / or the edge of the second structure, the leg is smoothly moved from the projection. At the stage of being inserted and further exceeding the convex portion, the resistance of the insertion is suddenly reduced, and a change in response or a fitting noise is generated. For this reason, the construction worker can easily perceive that the leg portions are locked without visually confirming, and it is possible to securely attach the joint member to the joint. In addition, if the protrusions are exceeded, resistance to pulling up the legs again arises, so that it is difficult for the legs to fall out of the joint. For this reason, the leg can be securely locked to the edge of the first structure and / or the edge of the second structure.
[0020]
The projection forms a recess that can be fitted with the edge of the first structure together with the head, and the leg is elastically deformed by interference with the second structure on the back side of the recess in the leg, so that the leg is in the first position. It is preferable that the lip biasing toward the structure protrudes toward the second structure. In this case, when the leg is inserted into the joint, the lip is elastically deformed and does not hinder the insertion, and if the edge of the first structure fits into the recess, the head becomes the first structure. Suitable contact with the surface of the object. Further, the lip elastically deforms in the restoration direction due to interference with the second structure, and urges the leg portion toward the first structure. For this reason, the joint member is easily attached to the joint, and the leg inserted into the joint is difficult to come off, and the engagement of the leg with the first structure is further ensured. In addition, since the lip protrudes toward the second structure, the lip improves the sealing property between the second structure and the leg.
[0021]
In this case, it is more preferable that a cushion that elastically deforms due to interference with the edge of the first structure and adheres closely to the edge and the surface of the recess is provided in the recess. In this case, the cushion improves the sealing performance between the edge of the first structure and the recess of the leg. As the cushion, an elastic body made of polyethylene (PE), ethylene-propylene-diene copolymer (EPDM), polyurethane (PU), or the like, a foam made of them, a paste sealing agent made of them, or the like is used. Can be.
[0022]
The head is preferably made of an elastically deformable material, and the legs are preferably made of a rigid material. If the head is made of an elastically deformable material, the head easily adheres to the surface of the first structure and the surface of the second structure, so that no gap is formed and joints are concealed well. And the sealing performance between the head and the first structure and the second structure is improved. If the legs are made of a rigid material, the legs can be easily inserted into the joint. Examples of elastically deformable materials include thermoplastic elastomers (TPE) such as olefin-based elastomers (TPO) and styrene-based elastomers, soft polyvinyl chloride (PVC), polyethylene (PE), and ethylene-propylene-diene copolymer (EPDM). ), Polyurethane (PU) and the like. As the rigid material, PP, hard PVC, or the like can be used.
[0023]
If the lip protrudes to the back side of the recess in the leg, the head is made of an elastically deformable material, the leg is made of a rigid material, and the lip is made of the same elastically deformable material as the head Is more preferable. As a result, the leg is suitably held in the joint, and the head can easily cover the joint without any gap. Further, if the head and the lip are made of the same elastically deformable material, the types of materials constituting the joint member are reduced. For example, when this joint member is manufactured by an extrusion molding machine or the like, the structure of the molding machine is reduced. The simplification can be achieved, and the manufacturing cost can be reduced. Here, the legs are preferably made of a material compatible with the head and the lip. In this case, the head and the lip can be integrated with the legs simultaneously with molding. As a combination of compatible materials, the legs can be PP, the head and lip can be TPO or TPE, the legs can be hard PVC, and the head and lip can be soft PVC.
[0024]
When a cushion is provided in the recess, the head is preferably made of an elastically deformable material, the legs are preferably made of a rigid material, and the cushion is preferably made of the same material as the head. As a result, the leg is suitably held in the joint, and the head can easily cover the joint without any gap. Further, if the head and the cushion are made of the same elastically deformable material, the types of materials constituting the joint member are reduced, and the manufacturing cost can be reduced. Here, the legs are preferably made of a material compatible with the head and the cushion. In this case, the head and the cushion can be easily integrated with the legs. As a combination of compatible materials, the legs may be PP, the head and cushion may be TPO or TPE, or the legs may be hard PVC, and the head and cushion may be soft PVC.
[0025]
In the method for manufacturing a joint member according to the present invention, when the first structure and the second structure are arranged adjacent to each other, the joint is formed by an edge of the first structure and an edge of the second structure. A long head attached to the joint, the head being in contact with the surface of the first structure and the surface of the second structure to conceal the joint, and the head being attached to the joint. A joint member extending from the back surface of the head integrally with the head in the depth direction of the joint and having a leg held in the joint;
[0026]
A molding step of integrally molding a long body having the head and the legs;
[0027]
When the edge of the first structure and / or the edge of the second structure is a bent edge bent in the depth direction, the leg is positioned at a position corresponding to the bent edge in the longitudinal direction. A notch forming step of forming a notch partially removed in,
[0028]
A bending step of bending the head in the depth direction along the shape of the bent edge, and forming a bent portion at a position corresponding to the bent edge of the leg;
[0029]
A fixing step of fixing a fixing material to the bent portion of the leg portion and fixing the head in a shape along the bent edge portion.
[0030]
In the manufacturing method of the present invention, a long body having a head and a leg is integrally formed by a forming step. As an integral molding method, for example, a material for a head and a material for a leg, which are mutually compatible, can be molded simultaneously by an extruder. This eliminates the need for a step of forming the head and the leg separately and then integrating them, and the body can be easily manufactured. If the edge of the first structure and / or the edge of the second structure is a bent edge that bends in the depth direction, the notch forming step places the leg at a position corresponding to the bent edge. Form a notch partially removed in the longitudinal direction. Then, in the bending step, the head is bent in the depth direction along the shape of the bent edge, and a bent portion is formed at a position corresponding to the bent edge of the leg. Thereafter, in a fixing step, a fixing material is fixed to the bent portion, and the head is fixed in a shape along the bent edge. Thus, the joint member of the present invention is obtained.
[0031]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, Embodiments 1 to 3 that embody a joint member and a method of manufacturing the joint member of the present invention will be described with reference to the drawings.
[0032]
(Embodiment 1)
As shown in FIGS. 1 and 2, the joint member 10 according to the first embodiment has a width l formed by a bathtub 1 as a first structure and a bathroom wall 2 as a second structure. ₁ (See FIG. 12). The edge of the right wall 2 and the edge of the corner on the near side of the bathtub 1 when the bathtub 1 is viewed from the front are bent edges 1a that bend in the joint depth direction.
[0033]
As shown in FIG. 3, the joint member 10 includes a main body 11 and a fixing member 12 that is thermally welded to the main body 11.
[0034]
As shown in FIG. 4, the main body 11 is a long body having a substantially T-shaped cross section, and has a width l of TPO. ₂ , And a leg portion 14 made of PP and extending integrally with the head portion 13 on the back side of the head portion 13, and a head portion 13 formed integrally with the leg portion 14 from one side of the leg portion 14. And a lip 15 made of TPO, which projects obliquely toward. Here, since the head 13 needs to hide the joint, l ₂ > L ₁ It has been.
[0035]
When the head 13 is positioned upward, the head 13 has a round cross-sectional shape of a substantially obtuse angled triangle whose upper surface is slightly inclined downward. The lower surface of the head 13 and the leg 14 are at right angles. At the lower end of the leg 14, in the cross section, there is a portion thicker than the joint width protruding to the other surface side opposite to the lip 15, and a convex portion 14 a that gradually becomes thinner from the joint width is formed therefrom. Have been. Here, the width of the thickest portion of the convex portion 14a is l ₃ Then, l ₃ > L ₁ It has been. The convex portion 14a forms a concave portion 14b that can be fitted to the edge of the bathtub 13 together with the head portion 13. The distance between the lower surface of the head 13 and the upper end of the projection 14a in the recess 14b is slightly longer than the thickness of the edge of the bathtub 1 (see FIG. 2). A storage groove 14c having a width substantially equal to that of the lip 5 is formed on the leg 14 on the side opposite to the recess 14b, and the lip 15 protrudes from the protrusion 14a of the storage groove 14c. Also, the maximum width l of the leg 14 including the lip 5 ₄ Is l ₄ > L ₁ It has been.
[0036]
The fixing member 12 shown in FIG. 3 is made of a plate-like PP. The peripheral portion of the fixing member 12 has a first curved portion 12a and a second curved portion 12b in a diagonal direction. The first curved portion 12a is formed by a plurality of short straight lines whose ends are connected by an obtuse angle that is gently bent. The second curved portion 12b is formed by an arc.
[0037]
The joint member 10 is manufactured through the following steps.
[0038]
<Molding process>
A die (not shown) having an opening having substantially the same shape as the cross-sectional shape of the main body 11 is prepared. The die is supplied with TPO and PP melted by heat. Then, TPO and PP are supplied to the die, and the main body 11 is extruded. In this way, as shown in FIG. 5, the elongated main body 11 composed of the head 13, the leg 14, and the lip 15 is easily formed integrally. At this time, since the TPO and the PP have compatibility, the head 13 and the leg 14 and the lip 15 and the leg 14 are thermally welded and integrated with a large bonding strength. The thus obtained main body 11 has a shape that can be directly employed as the joint members 10 and 20 when the edge of the bathtub 1 and / or the edge of the wall 2 are not the bent edge 1a.
[0039]
<Notch forming process>
In order to manufacture the joint member 10 for the bent edge 1a, for example, notches 14d and 14e are formed in the main body 11 by a press machine or the like, as shown in FIG. These notches 14d and 14e are obtained by partially removing the leg 14 in the longitudinal direction at positions corresponding to the bent edges 1a. In the case where the notches 14d and 14e are formed by a press die, the notches 14d and 14e having the same shape can be formed with high precision, and thus are suitable for mass-producing a small variety of joint members 10. It is. On the other hand, when the notches 14d and 14e are formed by using a laser processing machine, a press die is not required, so that the manufacturing cost of the joint members 10 of various kinds in small quantities can be reduced.
[0040]
<Bending process>
As shown in FIG. 7, the head 13 is bent by, for example, fitting into a mold having a groove corresponding to the shape of the bent edge 1 a, and a bent portion is formed at a position corresponding to the bent edge 1 a of the leg 14. 14f is formed. At this time, since the rest of the leg 14 can approach each other due to the presence of the cutouts 14d and 14e, the head 13 remaining in the cutouts 14d and 14e can be curved.
[0041]
<Fixing process>
Further, a fixing material 12 is prepared by punching a thin plate made of transparent PP with a press machine or the like. Then, the first curved portion 12a of the fixing member 12 is brought into contact with the back surface of the bent portion 14f, and the leg member 14 and the lip 15 are fixed to the fixing member 12 at a predetermined interval by a heated jig (not shown) such as a soldering iron. Weld. In FIG. 3, a plurality of portions denoted by reference numeral 16 are heat-welded portions. Here, since both the fixing member 12 and the leg portion 14 are made of PP, and the lip 15 is also made of TPO having excellent compatibility with PP, heat welding is easy and the adhesive strength is large. Further, since the fixing member 12 is transparent, when the fixing member 12 is fixed to the leg portion 14, the positioning of the fixing member 12 can be performed accurately and easily. Thus, the fixing member 12 is fixed to the bent portion 14f, and the head portion 13 is fixed in a shape along the bent edge 1a. Thereby, the joint member 10 shown in FIG. 3 is obtained. Here, the fixing method is not limited to the thermal welding, and it is also possible to fix with a stapler or fix with an adhesive. In the <bending step>, the head 13 may be deformed along the first curved portion 12a of the fixing member 12 to form the bent portion 14f. In this case, a jig such as a mold for bending is not required, which is particularly suitable for producing a small amount of joint members 10.
[0042]
In addition, in order to manufacture a joint member 20 for a bent edge portion having another different shape, as shown in FIG. 8, for example, a notch 14g is formed in the main body 11 as a <notch forming step>. Then, as shown in FIG. 9, as a <bending step>, the head 13 is bent in the depth direction along the shape of the bent edge, and the bent portion 14 h is positioned at a position corresponding to the bent edge of the leg 14. To form Thereafter, as a <fixing step>, the second curved portion 12b of the fixing member 12 is brought into contact with the back surface of the bent portion 14h, and the leg portion 14, the lip 15 and the fixing member 12 are thermally welded at predetermined intervals.
[0043]
The joint members 10 and 20 obtained are applied to joints formed by the edge of the bathtub 1 and the bathroom wall 2 shown in FIG. That is, as shown in FIG. 10, the construction worker inserts the leg portions 14 and the fixing members 12 of the joint members 10 and 20 into the joint. At this time, since the leg portion 14 is made of rigid PP, a loss in insertion force is small, and the leg portion 14 can be easily inserted into the joint. And since the convex part 14a of the leg part 14 is formed so that the thickness in the cross section may become gradually thinner downward, it is inserted smoothly without much resistance, and the convex part 14a is The resistance of the insertion suddenly decreases when the thickness exceeds the thickness. For this reason, the response changes, and the engaging portions 14a and 14b vigorously hit the edge 1a of the bathtub 1 to generate a fitting sound (click sound). Further, if the convex portion 14a exceeds the thickness of the bathtub 1, the convex portion 14a has a portion thicker than the joint width, so that it is difficult to pull up the leg portion 14 again, and it is difficult for the leg portion 14 to come off from the joint.
[0044]
When the leg 14 is inserted into the joint, the lip 15 is elastically deformed and stored in the storage groove 14c (see FIG. 4). For this reason, the lip 15 does not hinder the insertion. Thereby, the concave portion 14 b formed by the convex portion 14 a and the head 13 is fitted to the edge of the bathtub 1. At this time, the head 13 of the lip 15 suitably contacts the surface of the bathtub 1. Further, the lip 15 is elastically deformed in the restoring direction due to the interference with the wall 2 and urges the leg 14 toward the bathtub 1.
[0045]
In this way, the joint members 10 and 20 are easily mounted on the joint, and the leg 14 inserted into the joint is hard to come off, and the engagement of the leg 14 with the bathtub 1 is further ensured. In addition, since the head 13 is made of TPO that can be elastically deformed, the head 13 easily adheres to the surface of the bathtub 1 and the surface of the wall 2, and a gap hardly occurs. For this reason, the joint is concealed reliably, and the sealing property between the head 13 and the bathtub 1 and the wall 2 is improved. Further, since the lip 15 protrudes toward the wall 2, the sealing property between the wall 2 and the leg 14 is improved by the lip 15.
[0046]
In particular, for the joint formed by the bent edge 1a of the bathtub 1 and the bathroom wall 2, the joint member 10 for the bent edge 1a is used. As shown in FIGS. 11 and 12, the joint member 10 has the fixing member 12 thermally welded to the bent portion 14f of the leg portion 14, so that the head portion 13 is fixed in a shape along the bent edge 1a, The curved head 13 is not restored to the original long shape (linear shape) by the elastic force.
[0047]
For this reason, according to this joint member 10, the leg part 14 held in the joint formed by the bent edge 1a does not come off from the joint, and it is easy and easy even for a worker who does not have a high level of skill. Joints can be concealed without gaps under a good finish. In addition, since the joint member 10 has a fixed cross-sectional shape of the head 13 by the extruder, the thickness of the head 13 does not become too thick or too thin depending on the skill of the operator. Variations in finish are also reduced. Further, since the joint member 10 is manufactured in advance in a factory, it is not necessary to use a volatile solvent during the construction work, and the working environment is not deteriorated. Also, there is no need for a curing time required for completion of curing, which is required in the application with the sealing agent.
[0048]
Therefore, according to the joint member 10, even a worker who does not have a high level of skill can easily handle the work, has a small variation in the finish, and does not significantly increase the cost under a suitable work environment. Joints formed by the bent edges 1a can be suitably concealed in a short time.
[0049]
For joints formed by other bent edges, joint members 20 for other bent edges are used. Since the joint member 20 can share the fixing member 12 having the same shape as that used for the fixing member 10, the number of parts can be reduced, and the manufacturing cost can be reduced.
[0050]
As a modification of the first embodiment, as shown in FIG. 13, a cushion 17 made of TPO and extending in a plurality of lengths in the longitudinal direction may be provided in the recess 14b. In this case, the sealing performance between the edge of the bathtub 1 and the recess 14b of the leg 14 is improved by the cushion 17.
[0051]
(Embodiment 2)
As shown in FIGS. 14 and 15, in the joint member 30 of the second embodiment, a fitting groove 18 a into which the peripheral portion of the fixing member 12 can be fitted is formed on the back surface of the head 18. Other configurations are the same as those of the joint members 10 and 20 of the first embodiment, and the same configurations are denoted by the same reference numerals and detailed description thereof will be omitted.
[0052]
In this joint member 30, by fitting the first curved portion 12a of the fixing member 12 into the fitting groove 18a of the head 18, the positioning of the fixing member 12 becomes accurate, and the displacement can be prevented. Therefore, the head 18 can be more reliably formed along the bent edge 1a, and the joint formed by the bent edge 1a can be more reliably concealed. Other functions and effects are the same as those of the joint member of the first embodiment.
[0053]
(Embodiment 3)
As shown in FIG. 16, in the joint member 40 according to the third embodiment, the bent portion 14j is formed such that one cutout 14i keeps the rest of the leg 14 away (the cutout 14i widens). , A substantially L-shaped fixing member 19 is thermally welded. Other configurations are the same as those of the joint members 10 and 20 of the first embodiment, and the same configurations are denoted by the same reference numerals and detailed description thereof will be omitted.
[0054]
According to the joint member 40, since the bent portion 14j of the leg portion 14 is formed so as to curve the head portion 13 in a concave shape, it is possible to cover a gap between joints that is recessed in the depth direction. Other functions and effects are the same as those of the joint member of the first embodiment.
[Brief description of the drawings]
FIG. 1 is a perspective view of a bathroom or the like using a joint member according to a first embodiment.
FIG. 2 is an enlarged view of FIG.
FIG. 3 is a plan view of the joint member according to the first embodiment.
FIG. 4 is a cross-sectional view of the main body corresponding to the joint member according to the first embodiment, taken along line DD of FIG. 5;
FIG. 5 is a plan view of a main body of the joint member according to the first embodiment.
FIG. 6 is a plan view of the main body of the joint member according to the first embodiment after notches are formed.
FIG. 7 is a plan view showing a bending step and a fixing step in the joint member manufacturing method according to the first embodiment.
FIG. 8 is a plan view of another main body of the first embodiment.
FIG. 9 is a plan view of another joint member according to the first embodiment.
FIG. 10 is a cross-sectional view of the joint member according to the first embodiment taken along line AA of FIG.
FIG. 11 is a cross-sectional view of the joint member according to the first embodiment taken along line BB of FIG.
FIG. 12 is a cross-sectional view of the joint member according to the first embodiment taken along line CC of FIG.
FIG. 13 is a sectional view of a main body according to a modified example of the joint member of the first embodiment.
FIG. 14 is a cross-sectional view of the joint member according to the second embodiment in a fixing step.
FIG. 15 is a cross-sectional view of the joint member according to the second embodiment.
FIG. 16 is a plan view of a joint member according to the third embodiment.
[Explanation of symbols]
1. First structure (bathtub)
2. Second structure (wall)
1a: bent edge
13, 18 ... head
14 ... Legs
14d, 14e, 14g, 14i ... Notch
12, 19 ... fixing material
18a ... fitting groove
14a, 14b: locking portion (14a: convex portion, 14b: concave portion)
15 ... Lip
16 ... Cushion
14f, 14h, 14j ... bending part

Claims (14)

When the first structure and the second structure are arranged adjacent to each other, an elongated shape attached to a joint formed by an edge of the first structure and an edge of the second structure. A head that abuts the surface of the first structure and the surface of the second structure to conceal the joint, and a depth of the joint from a back surface of the head when attached to the joint. A joint member extending in the direction and having a leg held in the joint,
When the edge of the first structure and / or the edge of the second structure is a bent edge bent in the depth direction, the leg is elongated at a position corresponding to the bent edge. A joint which is formed with a notch partially removed in the direction, and a fixing material for fixing the head in a shape along the bent edge is fixed to the rest of the leg. Element. The joint member according to claim 1, wherein the fixing member has a plate shape. The joint member according to claim 1, wherein an edge of the fixing member is in contact with a back surface of the head. The joint member according to claim 3, wherein a fitting groove for fitting a peripheral portion of the fixing member is formed on a back surface of the head. A part of the peripheral edge of the fixing member is formed in a shape corresponding to the bent edge, and another part of the peripheral edge of the fixing member is formed in a shape corresponding to another bent edge having a different shape. The joint member according to any one of claims 2 to 4, wherein The fixing material according to any one of claims 1 to 5, wherein the fixing material is made of a material compatible with a material forming the leg portion, and the fixing material and the leg portion are heat-welded. Joint members. The joint member according to any one of claims 1 to 6, wherein the leg has a locking portion that can be locked to an edge of the first structure and / or an edge of the second structure. . The joint member according to claim 7, wherein the locking portion has a portion having a thickness larger than a joint width in a cross section, and has a convex portion that gradually becomes thinner from the joint portion toward the tip. The convex portion forms a concave portion that can be fitted to the edge of the first structure together with the head, and the leg portion is elastically deformed by interference with the second structure on the back surface side of the concave portion in the leg portion. The joint member according to claim 7 or 8, wherein a lip for urging the second structure toward the first structure protrudes toward the second structure. 10. The joint member according to claim 9, wherein a cushion which is elastically deformed by interference with an edge of the first structure and closely adheres to the edge and the surface of the recess is provided in the recess. The joint member according to any one of claims 1 to 10, wherein the head is made of an elastically deformable material, and the legs are made of a rigid material. The joint member according to claim 9, wherein the head is made of an elastically deformable material, the legs are made of a rigid material, and the lip is made of the same material as the head. The joint member according to claim 10, wherein the head is made of an elastically deformable material, the legs are made of a rigid material, and the cushion is made of the same material as the head. When the first structure and the second structure are arranged adjacent to each other, an elongated shape attached to a joint formed by an edge of the first structure and an edge of the second structure. A head that abuts against the surface of the first structure and the surface of the second structure to conceal the joint, and that the head is integrated with the head from the back of the head when attached to the joint. And extending in the depth direction of the joint, and a joint member having a leg held in the joint,
A molding step of integrally molding a long body having the head and the legs;
When the edge of the first structure and / or the edge of the second structure is a bent edge bent in the depth direction, the leg is positioned at a position corresponding to the bent edge in the longitudinal direction. A notch forming step of forming a notch partially removed in,
A bending step of bending the head in the depth direction along the shape of the bent edge, and forming a bent portion at a position corresponding to the bent edge of the leg;
Fixing a fixing material to the bent portion of the leg, and fixing the head in a shape along the bent edge.

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