JP2010121312A - Drainage structure of bathtub - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage structure which enables a person to notice leakage of water from a through-hole of a side surface of a bathtub, and which improves the beauty of a bathroom. <P>SOLUTION: Characteristically, this drainage structure 200 of the bathtub, the side surface of which has the through-hole for connecting pipes, includes: a water receiving tray 210 which is attached below the through-hole 130 of the bathtub 110; an apron 150 which is arranged on the lateral side of the bathtub 110; a receding portion 154 which is provided in the apron 150 and which recedes from a surface of the apron 150; a drain pipe 220 which is connected to the receding portion 154 from the water receiving tray 210; an outer cover 170 which conceals the receding portion 154, and which constitutes a surface flush with the surface, except the receding portion 154, of the apron; and a gap 174 which is formed between the receding portion 154 and the outer cover 170, and from which water discharged from the drain pipe 220 can flow out. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drainage structure provided in a bathtub such as a unit bath.

  2. Description of the Related Art Conventionally, a unit bath is provided in which a bathtub, a wall surface, a floor surface of a washing place, etc. are produced in advance in a factory and assembled at an installation location. Unit bath tubs have drain outlets on the bottom and through holes on the side of the tub, and are often connected with pipes for hot water, cooking, and jet baths.

  The drain on the lower surface of the bathtub is connected to the same drain trap as the drain on the washing place. In the drain trap, a packing is provided and sealed, and since it has a folded structure and the like, even if the packing deteriorates, it is difficult to reach water leakage. However, since the pipes are sealed by relying only on the packing in the through-hole on the side surface of the bathtub, there is a possibility that water leaks if the packing deteriorates over time or the connecting portion is loosened.

  Depending on the configuration of the unit bath, a waterproof pan that is continuous from the washing area to the lower part of the bathtub is disposed. In this case, even if water leaks from the vicinity of the through-hole, the water does not flow out to the house or the foundation, and if it is a small amount of water, it is scheduled to dry on the waterproof pan. However, there are cases where a sufficient height (depth) cannot be obtained under the floor, such as when a bathroom is provided on the second floor of a house, or when installed in an apartment. At this time, it is necessary to cope with water leakage from the vicinity of the through hole because a space for installing the waterproof pan cannot be taken below the bathtub.

  Conventionally, a configuration has been proposed in which water leakage from the vicinity of the through hole is received by a water tray and drained to a washing place or a drain trap.

  Patent Document 1 describes a configuration in which a water tray (water receiver) is disposed below a through hole of a bathtub, and the received water is drained from an apron to a washing place. In addition, in patent document 1, the water receiver which can be attached also to the outer surface of the bathtub which has a one side in the side surface is proposed.

Patent Document 2 describes a configuration in which a water receiving tray (water receiver) is disposed below the through hole, and a water leakage detection member that moves to the washing place due to water leakage is provided in a hose that flows the water leakage to the washing place. . Patent Document 2 discloses a water leakage detection member in which a drain outlet at the tip of a hose is sealed like a lid, glue is removed by water leakage and falls, and water leakage can be reliably detected.
JP 2007-319532 A JP 2007-313110 A

  However, in the configuration of Patent Document 1, there is a problem that the user who uses the bathroom can see the drain. In particular, when a few years have passed since the start of use, there is a problem that the aesthetic appearance is impaired due to the accumulation of water scale inside the drain outlet. In addition, there is a problem that there is a feeling that water leakage is planned and the impression is not good.

  Moreover, if the leak detection member which falls by water leak like the patent document 2 is provided in the exit of a drain outlet, it can prevent that the inside of a drain outlet is visible at the normal time. However, since the drainage port can be observed from the outside, there is a problem that the beauty is impaired. In the unlikely event that water leaks, the drain outlet remains open until the leak is repaired, and the interior remains visible.

  In addition, when water leakage from the water tray is led to the drain trap, there is a problem that although it is reliable as drainage, it does not notice that water has leaked.

  Then, this invention aims at providing the drainage structure which made it possible to notice the leak from the through-hole of the bathtub side surface, and improved the beauty | look of the bathroom.

  In order to solve the above problems, a typical structure of a drainage structure for a bathtub according to the present invention is a drainage structure for a bathtub having a through hole connecting pipes on a side surface, and is attached below the through hole of the bathtub. A water receiving tray, an apron arranged on the side of the bathtub, a retracting part provided in the apron and retracted from the surface of the apron, a drain pipe connected from the water receiving dish to the retracting part, and an apron concealing the retracting part An outer lid that forms a surface that is flush with the surface other than the receding portion, and a gap that is formed between the receding portion and the outer lid and from which water discharged from the drain pipe can flow out. .

  According to the said structure, the water which leaked from the through-hole of the bathtub is drained by the reverse part of an apron, and is drained to the washing place from the clearance gap between an outer cover and a reverse part. Therefore, the user can know that water leaks in the through hole because water flows from under the outer lid even after the bathroom is dried. Accordingly, it is possible to provide a drainage structure that can be noticed by the user if there is water leakage even though the apron has a uniform side surface with no opening in appearance.

  It is preferable that a maintenance opening provided in the retreating portion and an inner lid for sealing the maintenance opening are provided, and the drain pipe is connected to the inner lid from the water tray. By comprising in this way, when a water leak is discovered, it becomes possible to open an inner cover and to repair a water leak. Moreover, both the opening of the drain pipe and the inner cover for maintenance can be concealed inside the outer cover, and it is possible to improve the aesthetics while improving convenience.

  In the water tray, the connecting portion for connecting the drain pipe is preferably disposed on a side surface of the water tray and at a high position separated from the bottom surface of the water tray. By comprising in this way, if a small amount of water leaks, it can be stored in a water receiving tray, and can be evaporated as it is.

  It is preferable that a plurality of connection portions are provided in different directions of the water tray. By comprising in this way, even when a washing place is arrange | positioned in a different direction with respect to a bathtub, the same water tray can be used.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to notice the water leak from the through-hole of the bathtub side surface, the drainage structure which improved the beauty | look of the bathroom can be provided.

  An embodiment of a drainage structure according to the present invention will be described. FIG. 1 is a perspective view illustrating a drainage structure, FIG. 2 is a partial cross-sectional view of the drainage structure, FIG. 3 is a diagram illustrating a configuration near a drain outlet, and FIG. 4 is a diagram illustrating a configuration of a water tray. Note that dimensions, materials, and other specific numerical values shown in the following embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified.

  As shown in FIG. 1, a through-hole 130 to which pipes 120 for hot water supply, additional cooking, a jet bath, and the like are connected is provided on the side surface of the bathtub 110. Moreover, the apron 150 and the washing place 160 are arrange | positioned at the side of the bathtub. The apron 150 and the washing place 160 are integrally molded or are installed (constructed) in a watertight manner. And the drainage structure 200 concerning this embodiment is a structure for draining the water leak from the through-hole 130 of the bathtub 110 to the washing place 160. FIG.

  A water tray 210 is attached below the through hole 130 of the bathtub 110. The water tray 210 is provided with two connection portions 212 (see FIG. 4) on both the left and right sides, and a drain pipe 220 is connected to one connection portion 212.

  The apron 150 is formed with a receding portion 154 that recedes from the apron surface 152, and a maintenance opening 156 is formed in the receding portion 154. The maintenance opening 156 is wide enough so that the operator can observe the inside and put in his / her hand to perform maintenance work for connecting the through hole 130 and the pipes 120. The maintenance opening 156 is sealed with the inner lid 230. Therefore, the surface of the inner lid 230 is at a position retracted from the apron surface 152. The inner lid 230 can be fixed to the apron 150 with a fastening member such as a screw.

  An outer lid 170 that covers the apron surface 152 (a surface other than the receding portion 154) and is flush with the apron surface 152 is detachably attached to the retracting portion 154 of the apron 150. Therefore, after the outer lid 170 is attached, as shown in FIGS. 1B and 2, the surface of the outer lid 170 and the apron surface 152 constitute the same surface, and the drain port 222 is not exposed to the appearance. The outer lid 170 can be detachably attached to the retreating part 154 by, for example, standing an engagement pin 172 on the back side and fitting it into an engagement boss 232 provided on the inner lid 230 (see FIG. 2).

  The other end of the drain pipe 220 connected to the water tray 210 is connected to the inner lid 230, and a drain port 222 is provided at the tip of the drain pipe 220. That is, the drain pipe 220 is connected from the water tray 210 to the retreating part 154. For example, as shown in FIG. 3, the drain pipe 220 and the inner lid 230 can be connected to each other by providing flanges so that the drain port 222 and the end of the drain pipe 220 can be screwed together. The threaded portion of the drainage port 222 can be inserted into the end of the drainage tube 220 in a state where the inner lid 230 is sandwiched.

  As shown in FIG. 2, a gap 174 is formed between the outer lid 170 and the retracted portion 154 when the outer lid 170 is attached. Thereby, the water discharged from the drain pipe 220 can flow out from the bottom of the outer lid 170 to the washing place 160.

  According to the above configuration, the water leaked from the through hole 130 of the bathtub 110 is drained to the receding portion 154 of the apron 150 and drained from the gap 174 between the outer lid 170 and the receding portion 154 to the washing place 160. Therefore, the user can know that water leaks in the through-hole 130 because water flows from under the outer lid 170 even after the bathroom is dried. Thereby, although it is the apron 150 which has the uniform side surface without an opening in appearance, if the water leaks, the user can notice.

  Further, since the drainage pipe 220 is connected to the maintenance opening 156 at the retreating portion, it is possible to repair the water leakage by opening the inner lid 230 when water leakage is found. Further, both the drain outlet 222 and the maintenance inner lid 230 can be concealed inside the outer lid 170, and the aesthetics can be improved while improving convenience.

  In addition, as shown in FIG. 4, in the water tray 210, the connection portion 212 that connects the drain pipe 220 is disposed on a side surface of the water tray 210 at a high position separated from the bottom surface 214 of the water tray 210 by a height h. ing. That is, the water that has fallen in the water tray 210 is stored to some extent, and the portion exceeding the height h is discharged from the connection portion 212 through the drain pipe 220. By comprising in this way, if a small amount of water leaks, it can be stored in the water receiving tray 210, and can be evaporated as it is. Therefore, it is possible to avoid bothering the user when water droplets accumulate due to condensation or when the water leaks are not yet repaired.

  In addition, as described above, the plurality of connection portions 212 of the water tray 210 are provided in different directions (two in the left and right sides in the present embodiment). By comprising in this way, even when the washing place 160 is arrange | positioned with respect to the bathtub 110 in a different direction, the same water receiving tray 210 can be used. In addition, although it is possible to provide the connection part 212 in the bottom face 214 of the water receiving tray 210, since it is necessary to provide the height difference with the drain outlet 222, it is preferable to provide the connection part 212 in the side surface 216. Further, the connection portion 212 to which the drain pipe 220 is not connected is preferably sealed with a cap 218 or the like.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  In the above configuration, the drain pipe 220 is connected to the inner lid 230, but it is not always necessary to connect to the inner lid 230, and it may be connected to the retreating part 154. Therefore, for example, the inner lid 230 may not be provided. Further, for example, as shown in FIG. 5, an inner lid 230 and a drain port 222 may be provided side by side.

  The present invention can be used as a drainage structure provided in a bathtub such as a unit bath.

It is a perspective view explaining a drainage structure. It is a fragmentary sectional view of a drainage structure. It is a figure explaining the structure of the drain outlet vicinity. It is a figure explaining the structure of a water receiving tray. It is a figure which shows the other example of a drainage structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 110 ... Bathtub, 120 ... Pipes, 130 ... Through-hole, 150 ... Apron, 152 ... Apron surface, 154 ... Retraction part, 156 ... Maintenance opening, 160 ... Washing place, 170 ... Outer lid, 172 ... Engagement pin, 174 ... Gap, 200 ... Drain structure, 210 ... Water tray, 212 ... Connector, 214 ... Bottom, 216 ... Side, 218 ... Cap, 220 ... Drain pipe, 222 ... Drain port, 230 ... Inner lid, 232 ... Engagement boss 234 ... Drainage opening

Claims (4)

A drainage structure for a bathtub having a through hole connecting pipes on the side surface,
A water tray attached below the through hole of the bathtub;
An apron arranged on the side of the bathtub;
A retracted portion provided in the apron and retracted from the surface of the apron;
A drain pipe connected to the receding part from the water tray,
An outer lid that conceals the receding portion and constitutes a surface flush with the surface other than the receding portion of the apron;
A bathtub drainage structure comprising: a gap formed between the receding portion and the outer lid, through which water discharged from the drain pipe can flow out. A maintenance opening provided in the retreating portion;
An inner lid that seals the maintenance opening;
The drainage structure for a bathtub according to claim 1, wherein the drain pipe is connected to the inner lid from the water tray.   The said water receiving tray WHEREIN: The connection part which connects the said drain pipe is arrange | positioned in the high position spaced apart from the bottom face of the said water receiving tray on the side surface of the said water receiving tray. The drainage structure of the bathtub described in 2.   The said connection part is provided with two or more in the different direction of the said water receiving tray, The drainage structure of the bathtub of any one of Claims 1-3 characterized by the above-mentioned.

Images