JP5166744B2 - Bathtub water return structure - Google Patents

Description

  The present invention relates to a water return structure for a bathtub in which a water return piece made of synthetic resin is attached to an edge of a flange portion of the bathtub.

  2. Description of the Related Art Conventionally, a structure in which a water return piece is configured by attaching a water return piece to a bathtub is known (for example, see Patent Document 1). For example, when a floor pan is not installed on the bathtub side of the bathroom, for example, a water return structure having a substantially L-shaped cross section is provided at the edge of the flange portion, and the edge of the flange portion of the bathtub is directed toward the bathroom wall. Water prevents water from entering and the floor under the bathtub from getting wet.

  When providing the water return structure, it may be integrally formed from the bathtub as described in Patent Document 1, but a metal fitting having a substantially L-shaped cross section is fixed to the upper surface of the flange portion of the bathtub with screws. Thus, the water return structure can be easily provided without particularly changing the direction of the bathtub.

Thus, when fixing the metal fitting having a substantially L-shaped cross section to the upper surface of the flange portion of the bathtub with screws, there is a problem that it is necessary to fix with a large number of screws, which requires man-hours for work.
JP 11-172734 A

  Therefore, a water return structure in which a synthetic resin water return piece is provided by bonding or the like instead of the metal fitting having a substantially L-shaped cross section as described above has been considered. This is because the water return piece intermediate part is provided at the intermediate part of the edge of the flange part of the bathtub, and the corner part is provided at the corner where the adjacent edges of the flange part of the bathtub intersect, The end part of the middle part and the corner part were connected and fixed.

  However, in this case, since the water return piece intermediate portion expands in the longitudinal direction due to thermal expansion, the end portions of both water return piece intermediate portions are fixed by the corner portion and cannot absorb the thermal expansion.

  This invention is made | formed in view of said point, The place made into the objective is providing the water return structure of the bathtub which can absorb the thermal expansion of the water return piece provided in the flange part of the bathtub. Is an issue.

In order to solve the above-described problem, the invention according to claim 1 is a bathtub water return structure in which a synthetic resin water return piece 2 is attached to the edge of the flange portion 11 of the bathtub 1. The thermal expansion absorbing portion 5 that absorbs thermal expansion at the end portion of the water return piece intermediate portion 3 provided at the intermediate portion of each of the two sides at the corner portion where the two adjacent edges of the flange portion 11 of the 1 intersect. The corner member 4 is connected and fixed. The corner member 4 includes a connection portion 44 made of a hard resin and connected to the end portions 3a of the water return piece intermediate portions 3 and the end portions of the both connection portions 44. It is characterized by comprising a stretchable portion 45 made of a soft resin with both ends connected to each other.

With such a configuration, it is possible to thermal expansion of the water flashing piece intermediate part 3 is absorbed by the thermal expansion absorbing portion 5 and the Do Ri, further integrating the water flashing piece intermediate part 3 and the corner member 4 Can be formed.

Further, in the invention according to claim 2 , in the invention according to claim 1 , it is easy to form the connection portion 44 made of hard resin and the expansion / contraction portion 45 made of soft resin by two-color molding. Can be formed.

Moreover, in the invention which concerns on Claim 3 , in the invention which concerns on Claim 1 or Claim 2 , it depends on the lower end part of the water return piece 2, and the drooping piece 12 suspended from the edge of the flange part 11 of the bathtub 1 is provided. An engaging portion 33 is provided to engage with the lower end portion of this.

  By setting it as such a structure, it becomes possible to make the water return piece 2 engage with the drooping piece 12 of the bathtub 1, and to attach it firmly.

In the invention according to claim 4 , in the invention according to any one of claims 1 to 3 , the water return piece 2 and / or the corner member 4 is a soft adhesive that absorbs linear expansion. It adheres to the upper surface of the flange part 11 of the bathtub 1 through this, It is characterized by the above-mentioned.

  By setting it as such a structure, the thermal expansion difference of the water return piece 2 or / and the corner member 4 and the flange part 11 of the bathtub 1 can be absorbed.

  In the present invention, when the intermediate portion of the water return piece is thermally expanded, the thermal expansion can be released and absorbed, and the thermal expansion is not released as in the case where both intermediate portions of the water return piece are fixed. It will never be damaged.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. FIG. 3 shows a bathroom in which a water return structure for a bathtub according to an embodiment of the present invention is adopted. A bathroom unit called a so-called floor half system in which a floor pan is arranged on the washing side but no floor pan is arranged on the bathtub 1 side. An example is shown.

  The bathroom unit shown in FIG. 3 includes a washing floor floor pan 61, a support frame 62, a bathtub 1 mounted and supported on the support frame 62, an apron 13, and outer edges of the three sides of the washing floor floor pan 61 and the bathtub 1. These are composed of a wall panel 7 erected on the outer ends of the three sides, a door frame (not shown), and a ceiling panel (not shown).

  The support frame 62 includes at least a bathtub installation portion 63, and the washing floor floor pan 61 may be integrally provided on the support frame 62, or the washing floor floor pan 61 and the support frame 62 may be separated from each other. Good.

  Legs 64 having a height adjustment function are provided on the lower surface of the support frame 62 and the washing floor pan 61, and further, struts 65 are provided at corners (four corners in the figure) of the upper surface of the support frame 62. The column 65 is provided with a locking portion 66.

  Below, the water return structure of a bathtub is demonstrated. In the water return structure, the water return piece 2 made of synthetic resin is attached to the edge of the flange portion 11 of the bathtub 1, and water enters from the edge of the flange portion 11 of the bathtub 1 toward the bathroom wall, and the bathtub 1 side. This prevents the floor floor from getting wet. The flange portion 11 of the bathtub 1 is connected to the outer side from the upper end of the bathtub 1 substantially horizontally, and a hanging piece 12 hangs from the outer end edge of the flange portion 11. The water return piece 2 is attached to the portion of the outer edge where the piece 12 is suspended.

  In the embodiment shown in FIGS. 1 and 2, the water return piece 2 includes a water return piece intermediate portion 3 provided at an intermediate portion of the edge of the flange portion 11 of the bathtub 1 and an end of the flange portion 11 of the bathtub 1. It is comprised with the corner member 4 provided in the corner | angular part where two sides of an edge cross.

  The water return piece intermediate portion 3 has a substantially L-shaped cross section including a lower horizontal piece 31 and an upright piece 32 provided upward from the edge of the lower horizontal piece 31. In the present embodiment, the lower end portion of the vertical piece 32 slightly protrudes below the lower horizontal piece 31. This water return piece intermediate portion 3 is provided by being attached to the upper surface of the intermediate portion (that is, the portion excluding the corner portion) of the edge of the flange portion 11 of the bathtub 1 with a soft adhesive having elasticity, etc. In the embodiment, the projecting lower end portion of the vertical piece 32 is positioned in contact with the hanging piece 12 of the bathtub 1. And the corner member 4 is provided in the edge part 3a of the water return piece intermediate part 3. FIG.

  The corner member 4 is provided at a corner where two sides of the edge of the flange portion 11 of the bathtub 1 intersect, and is provided at an intermediate portion of each side of the edge of the flange 11 of the bathtub 1. The thermal expansion absorption part 5 which is arrange | positioned between the edge parts 3a of 3 and absorbs the thermal expansion of the said water return piece intermediate part 3 is provided. The connection between the corner member 4 and the water return piece intermediate portion 3 includes fitting, adhesion with a soft adhesive having elasticity, and the like. In the embodiment shown in FIGS. 1 and 2, the fitting is performed by fitting. is there. In this embodiment, the abutting end portion 3a of the water return piece intermediate portion 3 is inclined at an angle of 45 degrees with respect to the longitudinal direction so that the outer side is longer than the inner side as shown in the figure. In the state where the water return piece intermediate part 3 is abutted, it is substantially L-shaped in plan view. The corner member 4 has a substantially L-shape in plan view so as to cover the abutting portion in a state where the abutting end portions 3a of both the water return piece intermediate portions 3 are abutted via a slight gap (slit S). And a substantially U-shaped vertical covering portion 41 opened downward covering the standing piece 32 of the water return piece intermediate portion 3 having a substantially L-shaped cross section, and a lower horizontal piece 31 of the water return piece intermediate portion 3. And a fitting portion 43 in which a substantially U-shaped interior opened below the vertical covering portion 41 is fitted into the standing piece 32 of the water return piece intermediate portion 3. It has become.

  In the present embodiment, the water return piece intermediate portion 3 is formed of a hard resin such as ABS resin, and the corner member 4 is formed of a soft resin such as a styrene-based elastomer, so that the whole is a thermal expansion absorbing portion 5. A water return structure can be provided by simply fitting the corner member 4 into the water return piece intermediate portion 3 from above through the slit S. The corner member 4 is affixed to the upper surface of the flange portion 11 of the bathtub 1 with a soft adhesive or the like having elasticity in the same manner as the water return piece intermediate portion 3. Further, the bathroom panel may be placed on the upper surface of the lower horizontal piece 31 of the water return piece intermediate portion 3. In this case, the packing P is placed on the upper surface of the water return piece intermediate portion 3 and the upper surface of the flange portion 11 of the bathtub 1. The corner member 4 is placed on the packing P (see FIG. 1) and the bathroom panel is placed (see FIG. 2).

  According to the above configuration, the water return piece intermediate portions 3 provided on the two adjacent edges of the flange portion 11 of the bathtub 1 are fitted in the corner member 4 in a state of being faced through the slit S. Since it is connected and can be expanded and contracted, when the water return piece intermediate portion 3 is thermally expanded, these thermal expansions are absorbed and the thermal expansion can be released, and both water return piece intermediate portions 3 are fixed. As in the case, the thermal expansion does not escape and is not damaged.

  Moreover, the water return piece 2 or the corner member 4 and the flange of the bathtub 1 are attached to the upper surface of the flange portion 11 of the bathtub 1 with a soft adhesive that absorbs linear expansion. The difference in thermal expansion from the portion 11 can be absorbed.

  Next, another embodiment will be described based on FIGS. This embodiment is also mostly the same as the embodiment shown in FIGS. 1 and 2, and mainly different parts will be described.

  In this embodiment shown in FIGS. 4 and 5, the cross-sectional shape of the water return piece intermediate portion 3 is different. Here, as for the water return piece intermediate part 3, the width | variety of the lower horizontal piece 31 is narrower than upper embodiment, the protrusion part of the lower side of the standing piece 32 is longer than upper embodiment, and the hanging piece 12 of the bathtub 1 is long. An engaging portion 33 is formed that is suspended to substantially the same height as the lower end portion and has an upward hook shape engaged with the lower end portion of the depending piece 12. Also in the present embodiment, the bathroom panel may be placed on the upper surface of the lower horizontal piece 31 of the water return piece intermediate portion 3, and the upper surface of the water return piece intermediate portion 3 and the bathtub 1 as in the above embodiment. Packing P is provided on the upper surface of the flange portion 11, and the corner member 4 is placed on the packing P (see FIG. 4) and the bathroom panel is placed (see FIG. 5).

  Thereby, the water return piece intermediate part 3 can be engaged with the hanging piece 12 of the bathtub 1 and can be firmly attached.

  Further, another embodiment will be described with reference to FIG. The corner member 4 may have a thermal expansion absorbing portion 5 and may be connected and fixed to the end portion 3 a of the water return piece intermediate portion 3. The corner member 4 is connected to the end portions 3a of the water return piece intermediate portions 3 respectively, for example, a connection portion 44 made of a hard resin such as ABS, and both end portions are connected to the end portions of the connection portions 44, for example. It has a substantially L shape in a plan view and is composed of a stretchable portion 45 made of a soft resin such as a styrene elastomer. In the present embodiment, the connection portion 44 made of hard resin and the stretchable portion 45 made of soft resin are formed by two-color molding, and can be easily formed thereby.

  The cross-sectional shape of the corner member 4 is formed to be substantially the same as the cross-sectional shape of the water return piece intermediate portion 3. For example, the substantially L-shape shown in FIGS. 1 and 2 and the shape shown in FIGS. doing. The water return piece intermediate portion 3 is made of, for example, a hard resin such as ABS, and the end portion 3a of the water return piece intermediate portion 3 and the end portion of the connection portion 44 of the corner member 4 are connected and fixed by adhesion or welding. And the attachment to the bathtub 1 of the corner member 4 and the water return piece intermediate part 3 is also performed by the soft adhesive similar to having mentioned above.

  According to the configuration of the present embodiment, the water return piece intermediate portion 3 and the corner member 4 can be integrally formed, the appearance is improved, and from the gap as in the case where the corner member 4 of another member is fitted. It is possible to reliably prevent water from entering.

It is a principal part perspective view of one Embodiment of this invention. It is principal part sectional drawing at the time of mounting the wall panel of embodiment same as the above. It is a perspective view of the appearance of a bathroom. It is a principal part perspective view of other embodiment. It is principal part sectional drawing at the time of mounting the wall panel of embodiment same as the above. It is a principal part perspective view of other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 11 Flange part 2 Water return piece 3 Water return piece intermediate part 3a End part 5 Thermal expansion absorption part

Claims (4)

It is a water return structure of a bathtub formed by attaching a water return piece made of synthetic resin to the edge of the flange portion of the bathtub, and at the corner where two adjacent sides of the edge of the flange portion of the bathtub intersect, the two sides A corner member having a thermal expansion absorbing portion that absorbs thermal expansion is connected and fixed to an end portion of a water return piece intermediate portion provided in each intermediate portion, and the corner member is an end portion of both water return piece intermediate portions. A water return structure for a bathtub, comprising: a connecting portion made of a hard resin connected to each other; and a stretchable portion made of a soft resin having both ends connected to the ends of both connecting portions .   2. The water return structure for a bathtub according to claim 1, wherein the connecting portion made of hard resin and the stretchable portion made of soft resin are formed by two-color molding.   The engagement part which engages with the lower end part of the drooping piece suspended from the edge of the flange part of a bathtub is provided in the lower end part of the water return piece, The Claim 1 or Claim 2 characterized by the above-mentioned. Water return structure of bathtub.   4. The water return piece or / and the corner member are bonded to the upper surface of the flange portion of the bathtub through a soft adhesive that absorbs linear expansion. 5. The water return structure of the bathtub described in 2.

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