JP2012205862A - Bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathtub for obtaining a comfortable bathing feeling by soaking even shoulders in warm water when a user takes a bath even though in a highly water-saving bathtub, and suppressing interference between the buttocks of the user and a plug in bathing.SOLUTION: In the bathtub BT, a lower stage bottom surface 10 has a drain slope to allow a lower backrest surface 30 to be lower and includes an enterinf portion 32r where only a part of the side of the lower backrest surface 30 enters from a connection surface 13 toward the lower backrest surface 30. A drain outlet 60 is arranged to allow at least part thereof is positioned at the enterinf portion 32r.

Description

  The present invention relates to a bathtub.

  Bathtubs store hot water and are bathed by the user, and many bathtubs for private homes are configured so that one person can bathe. The bathtub as an example includes a bottom wall that forms a bottom surface that allows a user to extend his / her legs and sit down, and a pair of longitudinal side walls and a pair of short side walls standing from the bottom wall. ing. The bottom wall is provided with an outlet for discharging hot water stored in the bathtub. Due to the need to store hot water in the bathtub, the outlet is closed by a drain plug. Therefore, even if a user immerses in the hot water stored in the bathtub and is seated on the bottom surface, the drain plug does not get in the way for the user. Specifically, as described in Patent Document 1 below, a drain outlet is provided in the vicinity of the longitudinal side wall at the center of the bottom surface, and even if the user uses the short side wall as a backrest and bathes, The drain plug is configured not to interfere.

  By the way, as described in Patent Document 1 below, when the drainage port is provided at the center of the bottom surface, the bottom surface is inclined so that the position where the drainage port is provided is the most submerged for the purpose of ensuring the drainage gradient. It is necessary to attach. Also, since the side wall is used as a backrest, the height of both side walls is set so that when the user takes a bath, the shoulder can be immersed in hot water to get a comfortable bathing feeling. It is necessary to secure. As a result, when the user bathes with one short side wall as a backrest, the other short side wall has an unnecessarily deep water depth even though only the user's feet are on the bottom side. Will be secured.

  Therefore, as described in the following Patent Document 2, while ensuring the sufficient height dimension with the height of one short side wall as a backrest surface, the height dimension of the other short side wall is shortened. A bathtub like that has been proposed. The bottom surface of the bathtub is provided with a gradient so as to form a large slope from one short side wall to the other short side wall.

JP 2008-237497 A JP 2001-245807 A

  The bathtub described in Patent Document 2 uses a water gradient on the bottom surface because a large gradient is provided on the bottom surface. That is, the drain outlet is provided in the bottom wall in the vicinity of one side wall as a backrest surface. In such a bathtub, the height of one side wall in the short direction, which is the backrest side where the depth of water needs to be secured most, is long, and the other short side that is deep enough to immerse the user's feet is sufficient. The height dimension of the direction side wall is made short. Therefore, when it sees in the longitudinal cross-section along the longitudinal direction of a bathtub, it is a bathtub which can save water which reduced the area | region where water depth is uselessly as much as possible.

  However, as described above, in order to ensure water saving, a large slope is provided on the bottom surface, and a drain outlet is provided on the side wall in one short side that is the backrest surface. May interfere with the buttocks.

  The present invention has been made in view of such problems, and its purpose is to provide a comfortable bathing feeling by immersing it in hot water to the shoulder when the user takes a bath while being a bathtub with improved water saving. An object of the present invention is to provide a bathtub that can be obtained and that can suppress interference between a user's buttocks and a drain plug during bathing.

  In order to solve the above problems, a bathtub according to the present invention is formed so as to rise upward from a bottom surface having a pair of long edges and a pair of short edges and a short edge side of the bottom surface. A bathtub having a backrest surface and a connecting surface connecting the bottom surface and the backrest surface, wherein the connecting surface cuts an angle at which the surface extending from the backrest surface and the surface extending from the bottom surface intersect. The bottom surface is formed as a drainage gradient so that the backrest side is under water, and only a part of the backrest side is moved from the coupling surface to the backrest side. It has a biting portion that enters inward, and the drain outlet is provided so that at least a part thereof is located in the biting portion.

  According to the present invention, since the bottom surface is formed so that the back surface side is under water, the height of the back surface rising from one short edge side of the bottom surface is ensured, and the opposing surface rising from the other short edge side Can be suppressed. Therefore, when the user takes a bath with his back on the backrest and stretches his legs toward the opposite surface, a comfortable bathing feeling can be obtained in which the user is immersed in hot water when taking a bath. Furthermore, the backrest surface needs to be secured so that when the user is seated on the bottom surface, the shoulder surface can be soaked in hot water, while the opposite surface is high enough to soak the user's feet. Therefore, the water saving effect can be enhanced by suppressing the amount of water stored in the bathtub. In addition, the connecting surface that connects the backrest surface and the bottom surface is formed as a surface that enters the inside of the bathtub by cutting the corner where the surface that extends the backrest surface and the surface that extends the bottom surface intersects. The amount of stored water can be reduced, and a further water-saving effect can be achieved.

  Furthermore, in the present invention, the form of the connecting surface formed to enhance this water-saving effect is utilized so that the user's buttocks and the drain plug do not interfere during bathing. Specifically, a bite portion is formed by biting a part of the bottom surface on the backrest surface side toward the backrest surface side, and at least a part of the drain outlet is located in the bite portion. While the connecting surface penetrates into the inside of the bathtub, the biting part conversely enters the backrest side from the coupling surface, so that the user's buttocks can be brought into contact with the connecting surface beside the biting part. It is configured not to reach the user's buttocks. By forming a drainage port in this biting part, even if it sits on the bottom and takes a bath along the backrest side, it can be constituted so that the heel part, the drainage port and the drain plug do not interfere.

  Moreover, in the bathtub which concerns on this invention, it is also preferable that the said bite part has an inclined surface which inclines at a steep angle toward the said drain outlet from the said bottom face.

  In this preferable aspect, since the inclined surface which inclines at a steep angle toward the drainage port from the bottom surface is formed, the drainage port is formed at a position further lower than the bottom surface. Therefore, it can be configured so that the user's buttocks do not reach the drain port and the drain plug not only by the connection surface but also by the bottom surface.

  The bathtub according to the present invention further includes a pair of side wall surfaces formed so as to rise upward from the pair of long edge sides of the bottom surface, and the biting portion is a pair formed by the backrest surface and the pair of side wall surfaces. It is also preferable to be provided at any one of the corners.

  In this preferred embodiment, the biting portion is provided in the corner portion so that the user's buttocks do not reach the drain port and the drain plug not only from the connection surface but also from the side wall surface of the user. Can do.

  In the bathtub according to the present invention, the backrest surface has a lower surface on the bottom surface side and an upper surface connected to the upper side of the lower surface, and the upper surface is extended to the bottom surface. It is also preferable that the drain outlet is provided closer to the backrest surface than the virtual surface.

  In the bathtub according to the present invention, the user puts his / her back on the backrest surface and takes a bath by extending his / her legs to the opposite surface side opposite to the backrest surface. Therefore, in this preferred embodiment, the upper surface to which the user puts the upper part of the back is formed as a guide for pulling the user's buttocks away from the drain outlet. Since the drain outlet is provided on the backrest side of the virtual surface when the upper surface is extended to the bottom surface, it will be separated from the user's buttocks with the upper surface on the upper side of the back. Further, it can be configured such that the user's buttocks do not interfere with the drain port and the drain plug.

  Moreover, the bathtub according to the present invention includes a drain plug for closing the drain port, and a connecting member for locking the drain plug above the backrest surface, and for passing the connecting member through the backrest surface. It is also preferable that a recess is formed, and the recess is connected to the biting portion.

  In this preferable aspect, since the recessed part for letting the connecting member which locks the drain plug pass through the backrest surface, not only the drain plug but also the connecting member and the user's buttocks can be prevented from interfering with each other.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a bathtub which raised water saving, when a user takes a bath, it can be immersed in hot water to a shoulder and can obtain a comfortable bathing feeling. It is possible to provide a bathtub capable of suppressing interference with the bathtub.

It is a perspective view which shows the bathtub which is embodiment of this invention. It is a top view which shows the bathtub which is embodiment of this invention. It is a longitudinal cross-sectional schematic diagram which shows simply the condition where the user is bathing in the bathtub shown in FIG. 1 and FIG. It is a longitudinal cross-sectional schematic diagram which shows the state shown in FIG. 3 in detail. It is a figure which shows the inclination of the drain outlet vicinity in the bathtub of this embodiment. It is a longitudinal cross-sectional view in the drain outlet center vicinity of FIG. It is a perspective view which shows the bathtub which is a modification of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  The bathtub which is embodiment of this invention is demonstrated referring FIG. 1 and FIG. Drawing 1 is a perspective view showing bathtub BT which is an embodiment of the present invention. Drawing 2 is a top view showing bathtub BT which is an embodiment of the present invention.

  As shown in FIGS. 1 and 2, the bathtub BT includes a lower bottom surface 10, an upper bottom surface 11, a lower backrest surface 30, an upper backrest surface 33, a lower facing surface 40, an upper facing surface 43, and a lower right side. A wall surface 20r, an upper right wall surface 23r, a lower left wall surface 20s, an upper left wall surface 23s, and a rim surface 50 are provided.

  The bottom surface of the bathtub BT includes a lower bottom surface 10 and an upper bottom surface 11. The lower bottom surface 10 is provided at a position where the user can be immersed in hot water to the shoulder when the user sits on the lower bottom surface 10. The upper bottom surface 11 is a surface formed above the lower bottom surface 10. The user sits with the buttocks on the lower bottom surface 10, stretches his / her legs, puts it on the upper bottom surface 11, and takes a bath. The lower stage bottom surface 10 and the upper stage bottom surface 11 are connected to form a continuous surface. A drain port 60 is formed in the lower bottom surface 10.

  The lower bottom surface 10 has a pair of long edges 10er, 10es and a short edge 10et. The short edge 10et is formed on the side opposite to the upper bottom surface 11 so as to connect the pair of long edges 10er, 10es.

  The upper bottom surface 11 has a pair of long edges 11er and 11es and a short edge 11et. The short edge 11et is formed on the side opposite to the lower bottom surface 10 so as to connect the pair of long edges 11er and 11es.

  Accordingly, the bottom surface of the bathtub BT composed of the lower bottom surface 10 and the upper bottom surface 11 has one longitudinal edge composed of the longitudinal edge 10er and the longitudinal edge 11er and the other longitudinal edge composed of the longitudinal edge 10es and the longitudinal edge 11er. is doing. The short edge 10et connects a pair of long edges (one long edge composed of the long edge 10er and the long edge 11er and the other long edge composed of the long edge 10es and the long edge 11er) on the bottom surface 10 side. The short edge 11et connects a pair of long edges (one long edge composed of the long edge 10er and the long edge 11er and the other long edge composed of the long edge 10es and the long edge 11er) on the upper bottom surface 11 side.

  From the bottom surface of the bathtub BT composed of the lower bottom surface 10 and the upper bottom surface 11, a lower right wall surface 20r and a lower left wall surface 20s which are a pair of side wall surfaces are formed to rise upward. The lower right wall surface 20r is formed so as to rise upward from one longitudinal edge composed of the longitudinal edge 10er and the longitudinal edge 11er. The lower left wall surface 20s is formed so as to rise upward from the other longitudinal edge including the longitudinal edge 10es and the longitudinal edge 11er.

  A right step surface 21r is connected to the upper end of the lower right wall surface 20r so as to face substantially horizontally and outward. From the outer end of the right step surface 21r, the right connection surface 22r rises upward and is connected to the upper right wall surface 23r.

  A left step surface 21s is connected to the upper end of the lower left wall surface 20s so as to face substantially horizontally and outward. From the outer end of the left step surface 21s, the left connection surface 22s rises upward and is connected to the upper left wall surface 23s.

  A lower backrest surface 30 and a lower facing surface 40 rise from the bottom surface of the bathtub BT composed of the lower bottom surface 10 and the upper bottom surface 11. The lower backrest surface 30 rises upward from the short edge 10et of the lower bottom surface 10. The lower facing surface 40 rises upward from the short edge 11et of the upper bottom surface 11.

  An upper backrest surface 33 is connected to the upper end of the lower backrest surface 30 so as to extend obliquely upward outward. An upper facing surface 43 is connected to the upper end of the lower facing surface 40 so as to extend obliquely outward and upward. The upper backrest surface 33, the upper right wall surface 23r, the upper facing surface 43, and the upper left wall surface 23s are connected to form a continuous curved surface. A rim surface 50 is formed which is connected to the upper backrest surface 33, the upper right wall surface 23r, the upper facing surface 43, and the upper left wall surface 23s and extends in the horizontal direction so as to surround them.

  Then, the arrangement | positioning aspect of the drain outlet 60 is demonstrated, referring FIG. FIG. 3 is a schematic longitudinal sectional view schematically showing a situation where the user H is taking a bath in the bathtub BT shown in FIGS. 1 and 2. As shown in FIG. 3, a connecting surface 13 that connects the lower bottom surface 10 and the lower backrest surface 30 is formed. The connecting surface 13 is formed as a surface entering the inside of the bathtub by shaving the corner where the surface extending from the lower backrest surface 30 and the surface extending from the lower bottom surface 10 intersect. The lower bottom surface 10 has a drainage gradient so that the lower backrest surface 30 side is under water. Between the lower bottom surface 10 and the lower backrest surface 30, there is provided a biting portion 32r in which only a part on the lower backrest surface 30 side enters from the connecting surface 13 toward the lower backrest surface 30 side.

  The drain port 60 is provided so that at least a part thereof is positioned in the biting portion 32r. This is because when the conventional drainage port was formed at the position 60v, the drainage gradient of the lower bottom surface 10 was formed so that the lower backrest surface 30 would be under water, and the position had to be moved. . Since the drainage port 60 is moved to the lower backrest surface 30 side which is under water, it becomes easy to interfere with the buttocks of the user H, so the connecting surface 13 is used as a guard surface.

  In the present embodiment, since the upper backrest surface 33 is formed above the lower backrest surface 30, the effect that the user's H buttocks does not interfere with the drainage port 60 is further enhanced. As shown in FIG. 4, when the user H actually takes a bath, the user H takes a bath with the back attached to the upper backrest surface 33. The drainage port 60 is provided on the lower backrest surface 30 side than the virtual surface 33a when the upper backrest surface 33 is extended to the lower bottom surface 10. Therefore, the user's buttocks move away from the drainage port 60 due to the guide effect of the upper backrest surface 33.

  Furthermore, in this embodiment, the device which does not interfere with a user's buttocks in the drain outlet 60 vicinity is devised. This device will be described with reference to FIGS. FIG. 5 is a view showing the inclination near the drain 60 in the bathtub BT of the present embodiment. FIG. 6 is a longitudinal sectional view in the vicinity of the center of the drain port 60 of FIG.

  The biting portion 32r is formed at a corner between the connecting surface 13 that connects the lower bottom surface 10 and the lower backrest surface 30 and the connecting surface 12r that connects the lower bottom surface 10 and the lower right wall surface 20r. Further, the biting portion 32 r has an inclined surface 16 that inclines at a steep angle from the lower bottom surface 10 toward the drain port 60.

  Thus, since the inclined surface 16 that is inclined at a steep angle from the lower bottom surface 10 toward the drain port 60 is formed, the drain port 60 is formed at a position further lower than the lower bottom surface 10. Therefore, not only the connection surfaces 13 and 12r but also the lower bottom surface 10 can prevent the user's buttocks from reaching the drain port 60 and the drain plug. Further, by providing the biting portion 32r at the corner portion, the user's buttocks do not reach the drain outlet 60 and the drain plug not only from the connection surfaces 13 and 12r but also from the side of the user through the lower right wall surface 20r. Can be configured.

  As the drain plug for closing the drain port 60, a pop-up type or a rubber plug type with a ball chain is used. A modification in the case of using a rubber stopper type with a ball chain will be described with reference to FIG. FIG. 7 is a perspective view showing a bathtub BTa which is a modification of the present embodiment. The bathtub BTa includes a drain plug 80 for closing the drain port 60a, and a ball chain 81 (connecting member) for locking the drain plug 80 above the upper backrest surface 33. A recess 70 for allowing the ball chain 81 to pass through is formed so that the body of the user H is difficult to touch the ball chain 81. The concave portion 70 is formed between the lower left wall surface 20s and the lower backrest surface 30, and connects the rim surface 50 or the biting portion 32s.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, the elements included in each of the specific examples described above and their arrangement, materials, conditions, shapes, sizes, and the like are not limited to those illustrated, but can be changed as appropriate. Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

10: Lower stage bottom 10er: Long edge 10es: Long edge 10et: Short edge 11: Upper stage 11er: Long edge 11es: Long edge 11et: Short edge 12r: Connection surface 13: Connection surface 16: Inclined surface 20r: Lower right side Wall surface 20s: lower left wall surface 21r: right step surface 21s: left step surface 22r: right connection surface 22s: left connection surface 23r: upper right wall surface 23s: upper left wall surface 30: lower backrest surface 32r: biting portion 32s: biting portion 33 : Upper backrest surface 33a: virtual surface 40: lower facing surface 43: upper facing surface 50: rim surface 60: drainage port 60a: drainage port 60v: position 70: recess 80: drainage plug 81: ball chain BT: bathtub BTa: bathtub H: User

Claims (5)

A bottom surface having a drainage port and having a pair of long edges and a pair of short edges, a back surface formed so as to rise upward from one short edge side of the bottom surface, and the bottom surface and the back surface are connected. A tub having a connecting surface,
The connecting surface is formed as a surface that enters the inside of the bathtub by shaving the corner where the surface extending the backrest surface and the surface extending the bottom surface intersect,
The bottom surface has a bite portion in which a drainage gradient is formed so that the backrest surface side is under water, and only a part of the backrest surface side enters from the connection surface toward the backrest surface side. ,
The said drain outlet is provided so that at least one part may be located in the said biting-in part, The bathtub characterized by the above-mentioned.   2. The bathtub according to claim 1, wherein the biting portion has an inclined surface inclined at a steep angle from the bottom surface toward the drain outlet. A pair of side wall surfaces formed so as to rise upward from a pair of longitudinal edge sides of the bottom surface;
The bathtub according to claim 1 or 2, wherein the biting portion is provided in any one of a pair of corner portions formed by the backrest surface and the pair of side wall surfaces. The backrest surface has a lower surface on the bottom surface side and an upper surface connected to the upper side of the lower surface,
The bathtub according to claim 1 or 2, wherein the drain outlet is provided closer to the backrest surface than a virtual surface when the upper surface is extended to the bottom surface. A drain plug for closing the drain port, and a connecting member for locking the drain plug above the backrest surface,
The bathtub according to any one of claims 1 to 4, wherein a recess for allowing the connecting member to pass therethrough is formed on the backrest surface, and the recess is connected to the biting portion.

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