JP2006063558A - Floor structure of system bath - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor structure of a system bath having a heat reserving effect delaying the temperature lowering of hot water filled in a bath-tub at a low cost without uselessly adding any material. <P>SOLUTION: The floor structure of the system bath is integrally formed of the bath-tub provided to a bathroom having a washing place, an apron covering the side opposite to the washing place of the bath-tub lined by a member having insulating property on the back, the bottom section formed in a shape fitted outward on the back of the bath-tub by a member having insulting property and a side wall extended upward from the bottom section in three sides except an apron side of the bath-tub, and it is equipped with a bath-tub side floor receiving load of the bath-tub by the contacted surface and a bath-tub side floor receiving frame having the surface abutted on the lower surface of the bath-tub side floor, constructed under the bath-tub side floor and receiving the load of the bath-tub side floor by the abutting surface. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a floor structure of a system bath, and more particularly, to a floor structure of a system bath having heat insulation property that prevents heat of hot water stored in a bathtub from being radiated from the back surface of the bathtub.

  Human beings are now faced with global environmental problems related to the survival of the earth and human beings as represented by global warming, and efforts are being sought in every field to solve them. Among them, the housing industry plays an extremely important role.

  Various measures are also being considered for system buses used in ordinary houses and the like from the viewpoint of saving resources and energy, or from the viewpoint of reducing the environmental load generated from housing parts. One of the approaches to “energy saving” which is one of such problems is prevention of temperature drop of hot water stored in the bathtub. This not only suppresses the wasteful release of energy, but also reduces extra energy consumption such as additional cooking and contributes to the reduction of household energy costs.

  As measures to prevent the temperature drop of hot water stored in the bathtub, it is conceivable to cover the bathtub surface with a lid and cover the back of the bathtub with a heat insulating material, etc. A method by sticking a heat insulating material in the form is performed. However, since these methods simply add foamed urethane or a soft sheet-like heat insulating material, in addition to the material cost of the material for the heat insulating material, the man-hours for spraying and pasting work increase, and the productivity is greatly reduced. There is a problem. Also, in the former, uneven spraying is likely to occur, and it is difficult to ensure a uniform spray thickness, and in the latter, it is difficult to construct around water supply / hot water pipes and drainage pipes, and heat leaks easily from these areas. There are difficulties.

  In order to solve this problem, a technique has been proposed in which a plurality of heat insulating materials molded in accordance with the shape of the back surface of the bathtub are attached to the back surface side of the bathtub to prevent a decrease in the temperature of hot water inside the bathtub (for example, a patent) References 1 and 2). However, the method of attaching a plurality of heat insulating materials molded in accordance with the shape of the back surface of the bathtub to the back side of the bathtub requires not only the manufacturing cost of manufacturing the heat insulating material, but also simply adding the heat insulating material. This is contrary to the philosophy of “resource conservation”, another global environmental problem.

  On the other hand, the wall panel mounting portion formed on the outer peripheral three surfaces excluding the surface facing the washing area of the bathtub waterproof pan forming the bathtub installation surface is raised higher than the wall panel mounting portion of the washing floor waterproof pan forming the washing area. There is one that forms, i.e., covers the bathtub with a waterproof pan (see, for example, Patent Document 3), but this is for avoiding that an expensive wall panel is hidden under the bathtub and is wasted. It does not cover the entire back of the bathtub with a heat insulating material.

Moreover, what comprises a bathroom floor with the mount frame which the upper surface side opens, and the thin sheet-like waterproof member which has the 4 rounds extended upwards and is mounted on this mount frame is also known (for example, refer patent document 4). ), This can also be said to cover the bathtub with a waterproof pan, but this is intended to facilitate floor level adjustment and drain pipe connection, simplify the structure of the waterproof member and form the floor structure at a low cost. Yes, after all, it does not cover the entire back of the bathtub with a heat insulating material.
JP-A-8-196458 JP-A-9-28599 JP 2000-45349 A Japanese Patent No. 3491820

  The present invention has been made in consideration of the above-described circumstances, and provides a floor structure of a system bath having a heat retaining effect that delays a temperature drop of hot water stored in a bathtub at low cost without adding materials. It is for the purpose.

  In order to solve the above-described problem, the floor structure of the system bath according to the present invention is backed by a bathtub provided in a bathroom having a washing place and a member having heat insulation on the back surface, as described in claim 1. The apron that covers the side of the bathtub facing the washing area, the bottom formed in a shape that fits the back of the bathtub by a member having heat insulation, and the three sides except the apron side of the bathtub from the bottom A side wall extending upward is integrally formed, and has a bathtub side floor that receives the load of the bathtub and a surface that contacts the lower surface of the bathtub side floor, and is laid under the bathtub side floor. And a bathtub-side floor receiving frame that receives the load of the bathtub-side floor on the surface that abuts.

  In this case, as described in claim 2, the bathtub includes a flange extending substantially horizontally outward from the inner tub and a rim continuously suspended from the flange, and the system bus constitutes a wall surface. A back hanger for engaging the wall panel and the rim is provided, and the side wall of the bathtub-side floor is preferably extended to the height of the back hanger at least.

  Preferably, as described in claim 3, the heat insulating member is formed of a foam plastic, and more specifically, the foam plastic is foamed as described in claim 4. It is desirable to form any one of polypropylene, expanded polyethylene, expanded polystyrene and expanded urethane, or a composite material of a plurality of these materials.

  On the other hand, the material of the bathtub-side floor is not limited to those having heat insulation, and therefore, the floor structure of the system bath according to the present invention is formed in a shape that fits outside the bathtub back surface as described in claim 5, A bathtub-side floor that receives the load of the bathtub, and a surface that contacts the lower surface of the bathtub-side floor, and that is laid under the bathtub-side floor and receives the load of the bathtub-side floor A floor receiving frame may be provided.

  According to the floor structure of the system bath according to the present invention, it is possible to obtain a heat retaining effect that delays the temperature drop of the hot water stored in the bathtub without adding materials.

  An embodiment of a floor structure of a system bus according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing one outline of a system bus having a floor structure according to the present invention. The floor of the system bath 1 shown in the present embodiment is roughly divided into a washing place 2 and a bathtub mounting portion 3 as shown in the figure. The system bus 1 also includes a ceiling panel (not shown), water supply / hot water supply facilities, and the like.

  The washing place 2 is constituted by a washing place side floor 10 integrally formed of a resin material such as FRP. A number of reinforcing ribs (not shown) are arranged vertically and horizontally on the back surface of the washroom side floor 10 in order to ensure the strength of the floor surface and prevent bending, and support legs are formed at positions where the ribs intersect. These are placed on the building floor via support bolts 25 screwed onto the support legs.

  The bathtub mounting unit 3 includes a bathtub-side gantry 20, a bathtub-side floor 30, an apron 50, a bathtub 60, and a wall panel 70. The bathtub-side pedestal 20 is mounted on the building floor and directly or indirectly supports loads of the bathtub-side floor 30, the apron 50, the tub 60, the wall panel 70, and the like that are installed on the top. It is comprised from the side floor receiving frame 23, the support material 24, the support bolt 25 grade | etc.,.

  The gantry frame 21 is formed of a square steel pipe or an angle material, and connects the four corners of the bathtub mounting part 3 to form a base part of the bathtub side cradle 20 to which the bathtub side floor receiving frame 23 and the support material 24 are attached. is there. A support bolt 25 is screwed onto the lower surface of the gantry frame 21 and is placed on the building floor via the support bolt 25.

  The bathtub-side floor receiving frame 23 is a plate member that is installed between two members that are horizontally provided in the longitudinal direction of the gantry frame 21, and the bathtub-side floor 30 is placed thereon to support the load. As shown in FIG. 2, the bathtub-side floor receiving frame 23 is bent upward on both side surfaces in the longitudinal direction to form a bent portion 21a. The bent portion 21 a prevents bending of the plate material and is fitted into a groove 30 a provided in the bathtub-side floor 30 to serve as a positioning guide for the bathtub-side floor 30.

  The support member 24 supports the load on the wall panel 70 and the ceiling panel installed between the wall panels 70 and transmits the load to the gantry frame 21 at two corners where the wall panels 70 and 70 intersect at right angles. The main body of the column is formed by bending an isosceles trapezoidal plate 90 degrees symmetrically left and right symmetrically with the side length of the lower side being larger than the side length of the upper side. . The support member 24 may be any shape as long as it has a strength capable of supporting the load of the wall panel 70 or the like, and may be, for example, a square steel pipe.

  As shown in FIG. 5, a flat plate 24 a in which a screw hole 40 for screwing a corner wall receiving member 45 to be described later is formed is provided on the top of the support member 24 main body. Of the pillars 75 that support the wall panel 70, those that are located on the apron 50 side of the bathtub 60 are erected on the washing floor side floor 10, so that it is necessary to provide the support member 24 on the apron 50 side. do not do.

  As shown in FIGS. 2 and 3, the bathtub-side floor 30 has a flat bottom surface, a bottom portion having an upper surface formed in a shape that fits outside the bathtub 60, and three side surfaces of the bathtub 60 other than the apron 50 side. In this case, a side wall extending upward from the bottom is integrated with each other, and the upper and apron 50 sides are opened as a housing. Thus, the bottom of the inner surface of the housing is in contact with the back surface of the bathtub 60 on a wide surface, and supports the load with a surface instead of a point or a line.

  In addition, although the bottom part of the bathtub side floor 30 which contacts the back surface of the bathtub 60, or the three side surfaces raised from the bottom part of the bathtub side floor 30 may be formed integrally with the bathtub side floor 30 as shown, It may be formed separately from the bathtub-side floor 30 so as to correspond to the shape of the bathtub or to meet a wide range of loading conditions in construction, and may be configured integrally after assembly.

  The bathtub side floor 30 is formed of a heat insulating material obtained by foaming a plastic material. Among them, foamed polypropylene (EPP) is suitable as a material for the bathtub-side floor 30 because it has excellent properties such as being sticky and not easily cracked and having a restoring force and returning even when crushed. In addition, it has high chemical resistance against oils, organic solvents, detergents, etc., and is easy to mold. In particular, those with a low expansion ratio of about 15 to 20 times are both light and lightweight.

  Polyethylene foam (EPE) with a foaming ratio of about 15 times has the merit that although the performance other than chemical resistance is slightly inferior to the above EPP, it basically has the same performance and the material unit price is lower than that of EPP. The bathtub floor 30 can be used sufficiently. Also, urethane foam may be adopted.

  Styrofoam (EPS) with a magnification of 15 to 20 times is the most popular foamed plastic, but it has high hardness and rigidity, but it has stiffness and brittleness, such as crushing and breaking when pressed with weak stickiness and restoring force. There is a difficulty in using it as a structural member. It also has the disadvantage of being vulnerable to oils, organic solvents and detergents. However, it has the advantage of being inexpensive and easy to mold, so it can be hybridized with a material that compensates for the weakness of EPS (for example, a combination with a sheet material with high stickiness and chemical resistance, or foamed polyethylene (EPE)) It is also possible to put it to practical use by reinforcing the weak points by material modification such as blending with other materials.

  On the other hand, a wall receiving member 44 is provided on each side of the top of the bathtub-side floor 30, that is, the three side tops extending upward, and a corner wall receiving member is provided on the corner where the wall panels 70, 70 are orthogonal. 45 is disposed to receive the load of the wall panel 70, and this load is transmitted to the building floor via the support member 24, the gantry frame 21 and the support bolt 25.

  The wall receiving member 44 is formed of a hard resin or a metal extruded material, and includes a wall panel placement portion 44a, a wall panel support portion 44b, and an external fitting portion 44c, as shown in FIG.

  The wall panel support 44b extending upward from the wall panel placement portion 44a on which the wall panel 70 is placed contacts the wall panel 70 from the back. On the other hand, the outer fitting portion 44c is composed of a back surface of the wall panel placement portion 44a and two side plates extending downward from both ends of the wall panel placement portion 44a, and is fitted on the top of the outer heat insulating material 30. Adhesion, fit fit, or screw 46.

  As shown in FIGS. 4B and 5, the corner wall receiving member 45 is placed on the flat plate 24 a at the top of the column, and is drilled in the screw hole 41 and the flat plate 24 a formed in the corner wall receiving member 45. The screw hole 40 thus formed is connected and screwed using a screw 42 to be screwed. The wall receiving member 44 and the corner wall receiving member 45 protect the top of the outer heat insulating material 30 that is easily damaged, and prevent warping or deformation of the portion that is likely to be warped or deformed.

  The wall panel 70 is erected on the wall receiving member 44 and the corner wall receiving member 45 installed on the top of the bathtub-side floor 30, and is spanned between the columns 75 and 75 and attached. The support column 75 is also called a joiner. At this time, the load on the wall panel 70 is supported exclusively by the corner columns 76 standing at the corners of the wall panel 70 and transmitted to the support member 24, so that a large burden is not applied to the bathtub side floor 30. And since the wall panel 70 is not mounted on the rim | limb 60a of the bathtub 60, maintenance, such as replacement | exchange of a bathtub, is also easy.

  Back hanger 47 is attached to this wall receiving member 44 at least at three places, preferably in the vicinity of apron 50 and at the middle of the long side. The back hanger engages the bathtub 60 and the wall panel 70, thereby preventing rattling of the bathtub 60 and preventing the wall panel 70 from bending.

  FIG. 4C shows the wall receiving member 44 at a portion where the back hanger 47 is present. The back hanger 47 is formed by bending a stainless steel plate or the like, and is divided into a fixing portion 47a, a wall panel support portion 47b, and a rim receiving portion 47c. The fixing portion 47a abuts on the outer fitting portion 44c of the wall receiving member 44, and is screwed to the bathtub side floor 30 together with the outer fitting portion 44c to fix the rim receiving member 47. The wall panel mounting portion 47b sandwiches the wall panel 70 with the wall panel support portion 44b of the wall receiving member 44, and screws 45 are continuously inserted and fixed to the wall panel 70 to fix the wall panel. In the rim receiving portion 47, the end portion of the rim 60a of the bathtub 60 is inserted into a space formed between the rim receiving portion 47 and the rim receiving portion 47 to fix the bathtub in a predetermined position.

  An apron 50 that covers the side of the bathtub 60 is attached to the washing room 2 side of the bathtub 60. The apron 50 has a substantially rectangular shape, and the four sides are bent for reinforcement to form ribs. The upper end of the apron 50 is detachably fixed below the rim surface 60a at the upper end of the bathtub 60, and the lower end is suspended from the rim surface 60a so as to contact and be fixed to the top surface of the bathtub side floor 30 as shown in FIG. . Moreover, the heat insulating material of the same material as the bathtub side floor 30 is stuck on the back surface of the apron 50.

  When the apron 50 is attached, a heat insulating layer is formed integrally with the bathtub side floor 30 so as to cover the bottom surface and the four circumferences of the bathtub 60, and the bathtub 60 is insulated by the heat insulating layer.

  As described above, the top of the bathtub-side floor 30, that is, the top of the heat insulating material, is located at a position that is still lower than the lower end of the rim 60 a of the bathtub 60 and substantially at the height of the back hanger 47. This is almost the same for the heat insulating material attached to the back of the apron 50 (see FIG. 3). However, the water level when hot water is stored in the bathtub is at a lower position, and even if the bather enters the bathtub, the water level rarely rises to the height of the back hanger 47. And even if the height of a heat insulating material is low, even if it is the water level of hot water, the heat retention function can fully be exhibited. Therefore, if the heat insulating material is at least approximately the height of the back hanger 47, a sufficient heat retaining effect can be obtained.

  A drainage trap 4 that collects drainage from the bathtub 60 and the washing place and discharges it to the outside via a water pipe (not shown) is provided at the lower center of the side where the bathtub side floor 30 and the washing place side floor 10 are connected. Provided. Therefore, it seals with packing etc. so that a clearance gap may not arise between the bathtub side floor 30 and the drain trap 4. FIG.

  In this way, the system bus 1 according to the present embodiment does not add a heat insulating material to a relatively expensive FRP waterproof pan or the like, but instead adopts a relatively inexpensive heat insulating material. A structure having a waterproof function in addition to sufficient heat retention can be obtained at low cost.

  The heat insulation structure of the system bus 1 according to the present embodiment is configured as described above, and an outline of the installation procedure will be described below. The installation is performed by first placing the bathtub side mount 20 at an approximate installation position. Next, the bathtub-side pedestal 20 and the washing-room-side floor 10 are connected and integrated, and after performing accurate positioning and adjusting the level, a drain pipe or the like is connected.

  Subsequently, the bathtub-side floor 30 is placed on the bathtub-side floor receiving frame 23 so as to be dropped from slightly above the washing-room-side floor 10 in order to avoid the flat plate 24a of the support member 24 at the time of installation. The At this time, the groove 30 a of the bathtub-side floor 30 is fitted into the bent portion 23 a of the bathtub-side floor receiving frame 23, so that it can be easily installed at a predetermined position. Since the wall receiving member 44 and the corner wall receiving member 45 are attached to the top of the bathtub-side floor 30 in the factory, there is no installation work at the installation site, and the column 75, the wall panel 70, the ceiling panel, etc. will be sequentially installed. Install.

  Next, the merit of the heat retention structure according to the present embodiment will be described. As a heat insulation structure that solves the problems described in the background art, first, a conventional system bus as shown in FIG. 6 can be improved. That is, rather than sticking a heat insulating material to the bathtub 60 as in the example shown in the background art, the wall panel 70 surface located on the washing floor side floor 100 of the existing double waterproof pan structure, the back of the bathtub 60, and The heat insulating material 101 is laid or pasted on the back surface of the apron 50.

  However, in this heat retaining structure, since the wall panel 70 is erected from the outer edge of the waterproof pan and is present behind the heat insulating material 101, the heat insulating material 101 may not be sufficiently thick. Therefore, the heat from the bathtub 60 easily flows through the heat insulating material 101, and the so-called heat sink effect is generated in which the heat that has flowed through propagates to the wall panel 70 and dissipates heat from the entire wall panel 70.

  In addition, it is not a good idea from the viewpoint of cost to have two kinds of members, the wall panel 70 and the heat insulating material 101, present in an invisible portion such as the back surface of the bathtub 60. The same applies to the lower surface of the bathtub, and there are two types of members, a waterproof pan and a heat insulating material.

  Further, in order to obtain an effective heat insulating effect, the heat insulating material needs to have a certain thickness or more, and the installation height of the bathtub 60 is increased, which becomes a factor of increasing the straddle height during bathing. As a matter of fact, the heat insulating effect is reduced by the method of sticking the heat insulating material between the ribs on the back surface of the waterproof pan.

  As a solution to such a problem, the one shown in FIG. 7 can be considered. That is, the wall panel 70 is erected from the height near the rim 60a of the bathtub 60, and the lower wall portion and the normally unnoticeable portion of the bathtub lower portion are formed by the heat insulating material 102.

  The heat insulating material 102 is often made of a foamed plastic such as polystyrene foam or a fiber-based integrated material containing a large amount of air layer such as wood wool cement board, and these materials have sufficient water tightness. If this is the case, theoretically, it is possible to obtain a watertight performance equivalent to that of the double waterproof pan system, and it is possible to obtain heat insulation.

  However, these materials are not high in material strength, and deformation is inevitable if a relatively large load such as the bathtub 60 continues for a long period of time. If the structural material is deformed, the system bus room itself is also distorted, causing serious problems. In order to prevent this problem, it is necessary to give the heat insulating structural material 102 appropriate strength, for example, it is necessary to cover with a tough surface layer or to prepare a member having strength inside. Become. This would rather increase the cost against the original purpose.

  On the other hand, in the heat insulation structure of the system bath according to the present invention, although a heat insulating material having a low material strength is adopted as the flooring material, the bathtub 60, the hot water stored in the bathtub 60, and the load of the bather are transferred to the bathtub side. The structure is supported by the entire bottom surface of the floor 30, and the load applied to the unit area is reduced so that even a heat insulating material that is flexible to some extent can sufficiently support such a load. And since the load concerning the bathtub side floor 30 is also received by the surface by the bathtub side floor receiving frame 23, the load per unit area is also small on this side.

  Moreover, the load of the wall panel 70 and the ceiling panel is supported by the support member 24, is transmitted to the building floor via the bathtub side mount 20, and is not transmitted to the bathtub side floor 30, but the load applied to the bathtub floor 30 is increased. Has been reduced.

  Further, the bathtub-side floor receiving frame 23 is formed by forming a steel plate such as stainless steel and is thin and does not require a reinforcing rib on the back surface such as FRP, so that the installation height of the bathtub 60 is also high. In addition, the thickness of the bathtub-side floor 30, that is, the heat insulating material can be increased without increasing the straddle height during bathing.

  The embodiments described above are for illustrative purposes and do not limit the scope of the invention. Accordingly, those skilled in the art can employ embodiments in which each or all of these elements are replaced by equivalents thereof, and these embodiments are also included in the scope of the present invention.

  In the present embodiment, the case where the bathtub-side floor 30 is formed of a heat insulating material has been described as an example. However, the scope of the present invention is not limited thereto, and, for example, when a jet bath is employed, vibration proofing is provided. It is also possible to form the bathtub-side floor using a material having sound absorption properties.

The disassembled perspective view which shows the outline | summary of embodiment of the structure of the system bus | bath which concerns on this invention. The bathtub longitudinal direction longitudinal cross-sectional view of the system bath which concerns on this embodiment. The bathtub longitudinal direction longitudinal cross-sectional view of the system bath which concerns on this embodiment. It is a figure which shows the detail of the support structure of the wall panel which concerns on this embodiment, (a) is a wall receiving material, (b) is a corner wall receiving material, (c) is a figure which shows a back hanger. The disassembled perspective view explaining the support material, the wall receiving material, and the engagement of the corner member. The figure which shows the improvement example of the conventional heat retention structure. The figure which shows the other example of improvement of the conventional heat retention structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 System bus 4 Drain trap 10 Washing floor side floor 11 Reinforcement rib 20 Bath side frame 21 Base frame 23 Bath side floor receiving frame 23a Bending part 24 Support material 24a Flat plate 25 Support bolt 30 Bath side floor 30a Groove 42 Screws 43, 45, 46 Screw 44 Wall receiving member 44a Wall panel placing portion 44b Wall panel supporting portion 44c External fitting portion 47 Back hanger 47a Fixing portion 47b Wall panel supporting portion 47c Rim receiving portion 50 Apron 60 Bath tub 60a Rim 70 Wall panel 75 Column 76 Corner column

Claims (5)

A bathtub provided in a bathroom with a washing area;
An apron that is lined with a heat-insulating member on the back and covers the side of the bathtub facing the washing area;
By a member having heat insulating properties, a bottom portion formed in a shape that is fitted on the back surface of the bathtub, and a side wall extending upward from the bottom portion on the three side surfaces excluding the apron side of the bathtub are integrally formed, A bathtub-side floor that receives the load of the bathtub on the contact surface;
A bathtub-side floor receiving frame that has a surface that contacts the bottom surface of the bathtub-side floor, and that is laid under the bathtub-side floor and receives the load of the bathtub-side floor;
A system bus floor structure characterized by comprising: The bathtub includes a flange that extends substantially horizontally outward from the inner tank and a rim that continuously hangs from the flange.
The system bus includes a wall panel constituting a wall surface and a back hanger for engaging the rim.
The floor structure of the system bath according to claim 1, wherein the side wall of the bathtub side floor extends at least to the height of the back hanger. The system bus floor structure according to claim 1, wherein the heat insulating member is made of foamed plastic. 2. The floor structure of a system bus according to claim 1, wherein the foamed plastic is one of foamed polypropylene, foamed polyethylene, foamed polystyrene, foamed urethane, or a composite material of a plurality of these materials. A bathtub-side floor that is formed in a shape that fits externally on the back of the bathtub, and that receives the load of the bathtub on the surface that is in contact;
A bathtub-side floor receiving frame that has a surface that contacts the bottom surface of the bathtub-side floor, and that is laid under the bathtub-side floor and receives the load of the bathtub-side floor;
A system bus floor structure characterized by comprising:

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