JP5817985B2 - Wash floor bread - Google Patents

Description

  Aspects of the present invention generally relate to washroom floor pans used in bathrooms, shower stalls, and the like.

  There is a sanitary equipment room floor structure in which a buffer band is formed by bending between a portion fixed to a frame and a portion fixed to a rib (Patent Document 1). In the floor structure of the sanitary equipment room described in Patent Document 1, the opening of the buffer band expands or narrows following the thermal expansion and compression of the floor base portion, and the thermal expansion and compression of the floor base portion affects the frame. There is no such thing.

  In addition, there is a floor having a waterproof function provided with a portion that easily expands and contracts when subjected to a temperature change (expansion / contraction allowance portion) inside the outer peripheral portion of the waterproof pan (Patent Document 2). In the floor having the waterproof function described in Patent Document 2, when the waterproof pan tries to expand and contract in a temperature change environment, the expansion / contraction allowance part expands and contracts, The effect of deformation due to temperature changes is prevented.

  The present inventor, for example, is a foam formed of a thermoplastic resin for the purpose of reducing carbon dioxide emissions by reducing recycling, reducing the burden on the environment, reducing mold costs, etc. We are investigating a laundry floor pan using sushi.

  The linear expansion coefficient of the foam formed of the thermoplastic resin is, for example, about 5 times or more the linear expansion coefficient of fiber reinforced plastics (FRP: Fiber Reinforced Plastics). Therefore, when a foam formed of a thermoplastic resin is used for a washing floor floor pan, the foam is affected by a temperature difference between an internal temperature of a bathroom or a shower room and an external temperature, and is larger than FRP. Inflate.

  In this case, since a wall panel such as a bathroom is placed on the outer periphery of the washing floor floor pan, a deformation called “warping” due to thermal expansion occurs in the outer periphery of the washing floor floor pan. Less likely to occur compared to the center of the bread. On the other hand, since a wall panel or the like such as a bathroom is not placed in the central portion of the washing floor floor pan, the central portion of the washing floor floor pan may be deformed due to thermal expansion. For example, in the central part of the washing floor floor pan, there is a risk of warping upward.

  In general, a drainage slope inclined toward the drain outlet is provided on the surface of the washing floor floor pan. However, if warping upward occurs at the center of the washing floor floor pan, water (including hot water) on the surface of the washing floor floor pan may not easily flow toward the drain outlet. That is, if an upward warp occurs at the center of the washing floor floor pan, the drainage performance may be deteriorated.

JP 2007-146429 A JP 2008-25123 A

  The present invention has been made on the basis of recognition of such problems, and even when a foam formed of a thermoplastic resin is used, it is possible to suppress warpage due to thermal expansion and maintain a drainage gradient. The purpose is to provide.

  1st invention has higher intensity | strength than a thermoplastic foam plastic, and when it sees in an up-down direction, the floor base material which exhibits a rectangular shape, a drain outlet, and the wall by which a wall panel is mounted in an outer peripheral part is mounted A panel mounting portion, supported from below by the floor base material, formed of a thermoplastic foam plastic, and a drainage gradient inclined downward toward the drainage port is formed on the surface, viewed in the vertical direction A floor surface material that sometimes exhibits a rectangular shape, and the floor base material has an opening that penetrates the floor base material in a vertical direction at a position that does not overlap the wall panel placement portion when viewed in the vertical direction. And the floor surface material has an engaging portion that is provided on the lower side and engages with an edge portion of the opening.

  According to this washing floor floor pan, since the opening that penetrates in the vertical direction is provided in the floor base material, for example, an operator who performs the construction work of the washing floor floor pan puts his hand through the opening and installs the floor base. Reaching the lower part of the material makes it possible to adjust the height of the support legs with the adjuster function and to easily arrange and connect the piping on the back side of the floor base material. In addition, after the construction work, the opening is covered with a floor surface material placed on the floor base material. Therefore, the design of the bathroom or the washing floor floor pan is not impaired.

  The outer peripheral portion of the floor material is pressed from above by a wall panel erected on the wall panel placement portion. Therefore, even if the floor material is thermally expanded due to the temperature difference between the internal temperature of the bathroom or the like and the external temperature, the deformation of the outer periphery of the floor material is called warping due to thermal expansion. Compared with the center part of the flooring material, it is less likely to occur. On the other hand, the central portion of the floor material is not pressed from above by a wall panel or the like. Therefore, there is a possibility that deformation due to thermal expansion occurs in the center portion of the floor material. For example, in the center part of the floor covering, there is a risk of upward warping.

On the other hand, according to this washing place floor pan, the engaging portion of the floor covering is engaged with the edge of the opening of the floor base material having higher strength than the floor covering. Thereby, the upward curvature by the thermal expansion of a floor surface material can be suppressed. In other words, the floor material can be more reliably suppressed from floating from the floor base material. Thereby, the drainage gradient formed on the surface of the floor material can be maintained, and the drainage performance of the washing floor pan can be suppressed from being impaired. Moreover, by using thermoplastic foamed plastic for the flooring material provided in the washroom floor pan, it is possible to recycle the washplace floor pan, reduce the burden on the environment, and reduce the manufacturing cost.
Moreover, the engaging part of a floor surface material is engaged using the edge part of the opening part used for the construction work of a washroom floor pan. Thereby, since it is not necessary to form the new opening part and hole for engaging with a floor surface material in a floor base material, manufacturing cost can be reduced.

  Further, in a second invention according to the first invention, the floor material has a convex portion provided on a lower surface and fitted in the opening to fill the entire opening, and the engaging portion is It is a washing place floor pan provided in the peripheral part of the convex part.

  According to this washing place floor pan, the portion of the floor material above the opening is not supported from below by the floor base material, while the floor material has the convex portion filling the entire opening on the bottom surface. Have. Therefore, the bending of the floor surface material when the user or the like steps on the washing floor floor pan can be further suppressed. Thereby, it can suppress that the treading feeling of a washing floor floor bread falls. Moreover, it can suppress that the part of the floor surface material which is not supported by the floor base material from below is bent downward and deformed due to secular change.

  The third invention is the first or second invention, wherein the floor base material includes a receiving plate in which the opening is formed, and a support frame that supports the receiving plate from below. The lower surface of the engaging portion is located above the lower surface of the support frame, and at least one side surface of the opening and the support frame has an engaged portion to which the engaging portion is engaged. It is a washing floor floor pan characterized by being provided.

  According to the washing floor floor pan, the engaging portion of the floor material does not protrude downward from the lower surface of the support frame in a state where the floor material is placed on the floor base material. Therefore, it can prevent that the engaging part of a floor surface material gets in the way of piping etc. which were arrange | positioned under the floor base material, or it contacts with piping etc. Thereby, it is possible to lower the floor of the washing floor floor pan.

  Moreover, 4th invention is 3rd invention. WHEREIN: The said to-be-engaged part is a pressing piece which protruded toward the inner side of the said opening part from the internal peripheral surface of the said opening part, and the said floor material is the said When placed on the floor base material, the engaging portion engages with the engaged portion by temporarily pushing the pressing piece toward the outside of the opening, and the floor surface material When the heat expands, the pressing piece constrains the floor material while maintaining a state of projecting from the inner peripheral surface of the opening toward the inside of the opening, and the floor material is It is a washroom floor pan characterized by suppressing floating from a floor base material.

  According to this washing place floor pan, when the floor surface material is placed on the floor base material, the engaging portion temporarily pushes the pressing piece toward the outside of the opening portion, thereby engaging with the engaged portion. Engage. When the floor material is thermally expanded due to the temperature difference between the internal temperature and the external temperature of the bathroom, etc., the holding piece keeps protruding from the inner peripheral surface of the opening toward the inside of the opening. Restrain the flooring. Thereby, even when an engaging part is formed with thermoplastic foamed plastics, it can prevent that an engaging part destroys in the case of construction. Therefore, even if the floor covering is thermally expanded, it is possible to suppress the upward warping from occurring at the center of the floor covering. Thereby, the drainage gradient formed on the surface of the floor material can be maintained, and the drainage performance of the washing floor pan can be suppressed from being impaired.

  ADVANTAGE OF THE INVENTION According to the aspect of this invention, even when the foam formed with the thermoplastic resin is used, the washroom floor pan which can suppress the curvature by thermal expansion and can maintain a waste_water | drain gradient is provided.

It is a disassembled schematic diagram showing the washing-room floor bread concerning embodiment of this invention. It is a cross-sectional schematic diagram in cut surface AA represented to FIG. It is the expansion schematic diagram which expanded the range A1 represented to FIG. It is the expansion schematic diagram which expanded the range A2 represented to FIG. It is the isometric view schematic diagram which looked at the flooring material of this embodiment from diagonally downward. It is the plane schematic diagram which looked at the floor surface material of this embodiment from the downward direction, and the plane schematic diagram which looked at the floor base material of this embodiment from the top. It is a cross-sectional schematic diagram showing the vicinity of the other example of the engaging part of the floor surface material of this embodiment. It is a cross-sectional schematic diagram showing the vicinity of the further another example of the engaging part of the floor covering of this embodiment. It is a plane schematic diagram which illustrates the modification of the floor covering of this embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is an exploded schematic view showing a washing ground floor pan according to an embodiment of the present invention.

  The washing floor floor pan 100 illustrated in FIG. 1 includes a floor base material 110, a floor surface material 130, a cushion material 140, and a skin material 150. The washing floor pan 100 is formed in a shallow vessel shape (bread shape) with its peripheral edge bent upward, and has a waterproof property that prevents water from leaking out of a sanitary equipment room such as a bathroom or a shower room. In the present specification, the term “water” includes not only cold water but also warm hot water.

  The floor base material 110 includes support legs 111, a support frame 113, and a receiving plate 115. The support frame 113 includes, for example, four first frames 113a whose longitudinal direction is arranged in the first direction and four fourth frames arranged in the second direction whose longitudinal direction is orthogonal to the first direction. 2 frames 113b. The support legs 111 are provided at the four corners of the support frame 113. The support leg 111 has a bolt part, and has a structure whose height can be adjusted by rotation of the bolt part.

  The floor base 110 receives a load applied to the upper surface of the washing floor floor pan 100 in a limited space such as a bathroom, and maintains its position. Therefore, the floor base 110 needs to have sufficient strength. Therefore, as an example of obtaining this sufficient strength, steel material is used for the floor base material 110 in the present embodiment.

  The floor base material 110 is placed on an installation surface such as a bathroom (for example, the floor of a building), and the height is appropriately adjusted by the rotation of the bolt portion of the support leg 111. Thereby, the horizontal surface of the washroom floor pan 100 is secured. The support legs 111 and the support frame 113 support the receiving plate 115 from below. In other words, the receiving plate 115 is placed on the support leg 111 and the support frame 113. The receiving plate 115 is fixed to the support frame 113 by a fastening member such as a screw.

  The upper surface of the receiving plate 115 serves as a vertical reference position, that is, a horizontal reference surface, of each member included in the washing floor pan 100. The receiving plate 115 supports the floor material 130 from below and receives a load from a member placed on the receiving plate 115. Therefore, the receiving plate 115 is preferably a flat plate material having relatively high strength and rigidity. Examples thereof include a deck plate and a sandwich panel. The strength of the floor base material 110 is higher than the strength of the floor surface material 130 formed of a thermoplastic foam plastic described later.

  As shown in FIG. 1, a work port (opening) 117 is provided at a substantially central portion of the floor base material 110. For example, an operator who performs the construction work of the washing floor floor pan 100 adjusts the height of the support leg 111 by putting his hand through the work opening 117 and reaching the lower side of the floor base material 110, The drain pipe can be easily arranged and connected on the back side of 110. In addition, after the construction work, the work port 117 is covered with the floor material 130 placed on the floor base material 110. Therefore, the design of the bathroom or the washing floor floor pan 100 is not impaired.

A floor material 130 is placed on the floor substrate 110. The floor material 130 is made of thermoplastic foam plastic. Examples of the thermoplastic foamed plastic include foamed polypropylene, foamed polystyrene, foamed polyethylene, and foamed polyurethane. In this embodiment, foamed polypropylene is used as an example. Since the thermoplastic foamed plastic is recyclable, the use of this makes it possible to reduce CO ₂ emissions associated with the production and disposal of the floor covering 130 and provide an environmentally friendly product.

  As shown in FIG. 1, a drain port 131 communicating with a drain pipe (not shown) is formed in the vicinity of the outer peripheral portion on the long side, for example, of the floor material 130. The portion provided with the drain port 131 has a concave shape. In addition, a drainage gradient inclined downward toward the drainage port 131 is formed on the surface of the floor covering 130.

  A skin material 150 is provided on the floor material 130 via a cushion material 140. The cushion material 140 and the skin material 150 are intended to improve the sensory performance such as the appearance design and feeling of use of the floor surface of the washing floor floor pan 100 and the functions that are inevitably required for the washing floor floor pan 100 such as waterproofness. It is used for.

  That is, the cushion material 140 obtains the softness of the floor surface given to the user. As a material of the cushion material 140, for example, a soft material such as foamed polyurethane is used. By changing the hardness (softness) of the cushion material 140, the specification of the hardness (softness) of the floor surface can be changed.

  The skin material 150 forms the surface of the washroom floor pan 100. As the material of the skin material 150, a flexible soft sheet material having waterproofness is used. In order to improve the design and drainage of the surface of the washing floor floor pan 100, the skin material 150 can be subjected to uneven processing or a pattern.

  Note that the cushion material 140 and the skin material 150 are affixed in advance to the surface of the floor surface material 130 before the wash floor pan 100 is constructed. Since the floor surface material 130 is formed of a lightweight thermoplastic foamed plastic material, even if the cushion material 140 and the skin material 150 are pre-applied to the surface of the floor surface material 130, the operator must be light enough. Construction work can be performed as it is.

FIG. 2 is a schematic cross-sectional view taken along a cutting plane AA shown in FIG.
FIG. 3 is an enlarged schematic view in which the range A1 shown in FIG. 2 is enlarged.
FIG. 4 is an enlarged schematic view in which the range A2 shown in FIG. 2 is enlarged.
FIG. 5 is a schematic perspective view of the floor material according to the present embodiment as viewed obliquely from below.

  As described above with reference to FIG. 1, the floor surface material 130 of this embodiment is formed of thermoplastic foamed plastic. The linear expansion coefficient of the thermoplastic foamed plastic is, for example, 5 times or more the linear expansion coefficient of fiber reinforced plastics (FRP: Fiber Reinforced Plastics). Therefore, the floor material 130 is affected by the temperature difference between the internal temperature of the bathroom or the like and the external temperature, and may expand more than FRP.

  Here, as shown in FIG. 4, the floor covering 130 has a wall panel placement portion 139 on which a wall panel 201 such as a bathroom is placed on the outer peripheral portion. The wall panel placement portion 139 may not be provided over the entire circumference (four sides) of the outer peripheral portion of the floor covering 130. For example, the wall panel placement portion 139 may not be provided on at least one of the four sides (for example, one side on the bathtub side). The wall panel mounting portion 139 has a concave shape, and the wall panel 201 can be erected. Therefore, the portion where the wall panel placement portion 139 is provided, that is, the outer peripheral portion of the floor material 130 is pressed from above by the wall panel 201. Therefore, even when the floor covering 130 is thermally expanded, deformation called “warping” or the like due to thermal expansion occurs in the outer peripheral portion of the floor covering 130 as compared with the central portion of the floor covering 130. Hateful.

  On the other hand, the wall panel 201 or the like is not placed on the center portion of the floor surface material 130. Therefore, the center portion of the floor material 130 is not pressed from above by the wall panel 201 or the like. Therefore, there is a possibility that deformation due to thermal expansion occurs in the central portion of the floor covering 130. For example, in the central part of the floor covering 130, there is a risk of upward warping.

  On the other hand, the floor surface material 130 of the present embodiment includes a separation suppressing unit that suppresses deformation due to thermal expansion of the floor surface material 130 and suppresses the floor surface material 130 from separating from the floor base material 110. Specifically, as shown in FIG. 3, the floor surface material 130 is engaged with the edge of the work port 117 of the floor base material 110 on the lower side (the side on which the floor base material 110 is provided). It has a joint part (separation suppression part) 135.

  As shown in FIG. 5, the floor covering 130 has a convex portion 133 that protrudes downward on the lower surface. The floor member 130 illustrated in FIG. 5 has one convex portion 133 on each side as viewed from the approximate center, but is not limited thereto. The floor material 130 may have one convex portion 133 at a substantially central portion of the lower surface. The engaging portion 135 is provided at the peripheral edge of the convex portion 133. Here, the range of “peripheral part” includes the lower surface of the convex part 133 and the side surface of the convex part 133. In the floor material 130 shown in FIG. 5, the engaging portion 135 is provided on the side surface of the convex portion 133 and protrudes outward.

  The work port 117 penetrates the floor base material 110 in the vertical direction at a position where it does not overlap with the wall panel placement portion 139. As shown in FIG. 2, the convex portion 133 of the floor material 130 is fitted into the work port 117 of the floor base material 110. In this state, as shown in FIG. 3, the engaging portion 135 is engaged with a pressing piece (engaged portion) 118 provided on the floor base material 110. The holding piece 118 is provided on the inner peripheral surface (side surface) 115 a of the work port 117 of the floor base 110, and protrudes from the inner peripheral surface 115 a toward the inside of the work port 117. The pressing piece 118 has elasticity such as a leaf spring.

  When an operator or the like inserts the convex portion 133 of the floor surface material 130 into the work port 117 of the floor base material 110 and places the floor surface material 130 on the floor base material 110, the engaging portion 135 includes the pressing piece. 118 is temporarily pushed toward the outside of the working port 117. Then, when an operator or the like pushes the floor material 130 further downward, the force by which the engaging portion 135 pushes the pressing piece 118 is released, and the pressing piece 118 deforms toward the inside of the work port 117. As a result, the engaging portion 135 engages with the pressing piece 118 disposed at the edge of the work port 117.

  At this time, as shown in FIG. 3, the engaging portion 135 does not protrude downward from the lower surface 113 d of the support frame 113. In other words, the lower surface 134 of the engaging portion 135 is located above the lower surface 113 d of the support frame 113 in a state where the engaging portion 135 is engaged with the pressing piece 118.

  According to this, in a state where the engaging portion 135 is engaged with the holding piece 118, that is, in a state where the floor surface material 130 is placed on the floor base material 110, the engaging portion 135 of the floor surface material 130 is supported by the support frame. It does not protrude downward from the lower surface 113d of 113. Therefore, it is possible to prevent the engaging portion 135 of the floor surface material 130 from interfering with the piping or the like disposed below the floor base material 110 or coming into contact with the piping or the like. Thereby, the floor of the washroom floor pan 100 can be lowered.

  When the floor material 130 is thermally expanded due to a temperature difference between the internal temperature and the external temperature of a bathroom or the like, the pressing piece 118 protrudes from the inner peripheral surface 115a of the work port 117 toward the inside of the work port 117. The floor material 130 is constrained while maintaining this state. Thereby, it can suppress that the floor surface material 130 floats from the floor base material 110. FIG. That is, even if the floor covering 130 is thermally expanded, it is possible to suppress the upward warping from occurring in the center portion of the floor covering 130. Thereby, the drainage gradient formed on the surface of the floor material 130 can be maintained, and the drainage performance of the washing floor pan 100 can be suppressed from being impaired.

  The floor material 130 is more preferably provided with a plurality of engaging portions 135. According to this, it is possible to prevent the stress from concentrating on one engaging portion 135, and to prevent problems such as breakage of the engaging portion 135, for example.

FIG. 6 is a schematic plan view of the floor material of the present embodiment viewed from below and a schematic plan view of the floor base material of the present embodiment viewed from above.
In addition, Fig.6 (a) is the plane schematic diagram which looked at the floor surface material 130 of this embodiment from the downward direction. FIG. 6B is a schematic plan view of the floor base 110 of the present embodiment as viewed from above.

  As shown in FIG. 6A, when the floor surface material 130 is viewed from below or above, the floor surface material 130 has a rectangular shape, and has a rectangular convex portion 133 on the lower surface. As shown in FIG. 6B, when the floor base material 110 is viewed from below or above, the floor base material 110 has a rectangular shape and has a rectangular work port 117.

  As described above with reference to FIG. 2, the convex portion 133 of the floor material 130 is fitted into the work port 117 of the floor base material 110. That is, the length D1 in the first direction of the convex portion 133 of the floor covering 130 shown in FIG. 6A is greater than the length D3 in the first direction of the work port 117 shown in FIG. Slightly short. Further, the length D2 in the second direction of the convex portion 133 of the floor covering 130 shown in FIG. 6A is longer than the length D4 in the second direction of the work port 117 shown in FIG. 6B. Slightly short. Therefore, as shown in FIG. 2, when the convex portion 133 of the floor surface material 130 is fitted into the work port 117 of the floor base material 110, the convex portion 133 fills substantially the entire work port 117. . And the engaging part 135 provided in the peripheral part of the convex part 133 is engaging with the pressing piece 118 provided in the floor base material 110. FIG.

  According to this, the portion of the floor surface material 130 above the work port 117 is not supported from below by the floor base material 110, while the floor surface material 130 is a convex that fills substantially the entire work port 117. A portion 133 is provided on the lower surface. Therefore, the bending of the floor surface material 130 when the user or the like steps on the washing floor floor pan 100 can be further suppressed. Thereby, it can suppress that the treading feeling of the washing floor floor pan 100 falls. Moreover, it can suppress that the part of the floor surface material 130 which is not supported from the downward direction by the floor base material 110 bends and deform | transforms below by a secular change.

Next, other engaging portions of the floor covering of the present embodiment will be described with reference to the drawings.
FIG. 7 is a schematic cross-sectional view showing the vicinity of another example of the engaging portion of the floor material according to the present embodiment.
FIG. 7 corresponds to an enlarged schematic diagram in which the range A1 illustrated in FIG. 2 is enlarged.

  In the floor base material 110 shown in FIG. 7, an engagement port (engaged portion) 113 c is formed on the side surface of the support frame 113 on the work port 117 side. The engagement port 113c opens to the side of the work port 117 on the side surface of the support frame 113, and may have a hole shape or a groove shape.

  The floor covering 130 shown in FIG. 7 has a convex 133 that protrudes downward on the lower surface. The convex portion 133 is as described above with reference to FIGS. An engaging portion 135 is provided on the peripheral portion of the convex portion 133. In the floor material 130 shown in FIG. 7, the engaging portion 135 is provided on the side surface of the convex portion 133 and protrudes outward.

  When an operator or the like inserts the convex portion 133 of the floor surface material 130 into the work port 117 of the floor base material 110 and places the floor surface material 130 on the floor base material 110, the engaging portion 135 It receives a force from the edge of 117 and the side surface of the support frame 113 and temporarily deforms toward the inside of the work port 117. Then, when an operator or the like pushes the floor material 130 further downward, the force received by the engaging portion 135 is released, and the engaging portion 135 is deformed toward the outside of the work port 117. Thereby, the engaging part 135 engages with the engaging port 113 c formed on the side surface of the support frame 113.

  At this time, as shown in FIG. 7, the engaging portion 135 does not protrude downward from the lower surface 113 d of the support frame 113. In other words, the lower surface 134 of the engaging portion 135 is positioned above the lower surface 113d of the support frame 113 in a state where the engaging portion 135 is engaged with the engaging port 113c.

  According to this, in the state where the engaging portion 135 is engaged with the engaging port 113c, that is, the floor surface material 130 is placed on the floor base 110, the engaging portion 135 of the floor surface material 130 is supported by the support frame. It does not protrude downward from the lower surface 113d of 113. Therefore, it is possible to prevent the engaging portion 135 of the floor surface material 130 from interfering with the piping or the like disposed below the floor base material 110 or coming into contact with the piping or the like. Thereby, the floor of the washroom floor pan 100 can be lowered.

FIG. 8 is a schematic cross-sectional view showing the vicinity of yet another example of the engaging portion of the floor material according to the present embodiment.
FIG. 8 corresponds to an enlarged schematic diagram in which the range A1 shown in FIG. 2 is enlarged.

  The floor covering 130 shown in FIG. 8 has a convex 133 that protrudes downward on the lower surface. The convex portion 133 is as described above with reference to FIGS. An engaging portion 135 is provided on the peripheral portion of the convex portion 133. In the floor material 130 shown in FIG. 8, the engaging portion 135 is provided on the side surface of the convex portion 133 and protrudes outward.

  When an operator or the like inserts the convex portion 133 of the floor surface material 130 into the work port 117 of the floor base material 110 and places the floor surface material 130 on the floor base material 110, the engaging portion 135 The force is received from the edge of 117 and is temporarily deformed toward the inside of the work port 117. Then, when an operator or the like pushes the floor material 130 further downward, the force received by the engaging portion 135 is released, and the engaging portion 135 is deformed toward the outside of the work port 117. Thereby, the engaging part 135 engages with the edge part of the work port 117.

  According to this, since the floor surface material 130 is directly engaged with the work port 117 provided in the floor base material 110, it is not necessary to form an engaged portion for engaging the floor surface material 130. . Therefore, the structure of the floor base material 120 and the floor surface material 130 can be simplified. Therefore, the manufacturing cost can be reduced.

Next, a modified example of the floor material of the present embodiment will be described with reference to the drawings.
FIG. 9 is a schematic plan view illustrating a modified example of the flooring material of the present embodiment.
FIG. 9 is a schematic plan view of the floor material of this modification as viewed from below.

  The flooring material 130a of this modification has a flooring material body 132a and a convex part 133a. The convex 133a is not integrally formed with the floor material body 132a. That is, the convex 133a is formed as a separate body from the floor surface main body 132a. Then, after the floor material main body 132a and the convex 133a are formed, the convex 133a is fixed to the lower surface of the floor material main body 132a as shown by the arrows in FIG. In addition, the two convex parts 133a on the left side shown in FIG. 9 do not represent that the floor surface main body 132a is integrally formed, but after being fixed to the lower surface of the floor surface main body 132a. Represents a state.

  An engaging portion 135 is provided on the peripheral edge of the convex portion 133a. The engaging portion 135 shown in FIG. 9 is provided on the side surface of the convex portion 133a and protrudes outward as described above with reference to FIG. According to this, when the floor surface material 130 a of this specific example is placed on the floor base material 110, the engaging portion 135 engages with the pressing piece 118 provided on the floor base material 110. Therefore, even if the floor surface material 130a is thermally expanded, it is possible to suppress upward warping in the central portion of the floor surface material 130a.

  Further, since the floor material body 132a is formed separately from the convex portion 133a, the structure of the floor material body 132a can be simplified. Then, it is possible to improve the recycling efficiency of the washing floor floor pan 100 and reduce the manufacturing cost of the floor surface main body 132a.

  As described above, according to the present embodiment, the engaging portion 135 of the floor surface material 130 is engaged with the edge of the work port 117 of the floor base material 110 having higher strength than the floor surface material 130. . Thereby, the upward curvature by the thermal expansion of the floor surface material 130 can be suppressed. In other words, the floor material 130 can be more reliably suppressed from floating from the floor base material 110. Thereby, the drainage gradient formed on the surface of the floor material 130 can be maintained, and the drainage performance of the washing floor pan 100 can be suppressed from being impaired. In addition, by using thermoplastic foamed plastic for the floor material 130 provided in the washing floor floor pan 100, the washing floor floor pan 100 can be recycled, reducing the burden on the environment, and reducing the manufacturing cost.

The embodiment of the present invention has been described. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the floor base material 110, 120a, the floor surface material 130, etc., the installation form of the separation restraining part such as the engaging part 135 and the engaged part, etc. are exemplified. It is not necessarily limited to a thing, It can change suitably.
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.

  100 wash floor floor pan, 110 floor base material, 111 support leg, 113 support frame, 113a first frame, 113b second frame, 113c engagement port, 113d bottom surface, 115 backing plate, 115a inner peripheral surface, 117 work port, 118 Presser, 130, 130a Floor material, 131 Drain port, 132a Floor material body, 133, 133a Convex part, 134 Lower surface, 135 Engagement part, 139 Wall panel mounting part, 140 Cushion material, 150 Skin material, 201 Wall panel

Claims (4)

A floor base material having a higher strength than a thermoplastic foam plastic and exhibiting a rectangular shape when viewed in the vertical direction;
A drainage port and a wall panel placement portion provided on the outer peripheral portion on which the wall panel is placed, supported from below by the floor base material, and formed of thermoplastic foamed plastic and directed toward the drainage port. A floor slope that is formed on the surface and has a rectangular shape when viewed in the vertical direction,
With
The floor base material has an opening that penetrates the floor base material in the vertical direction at a position that does not overlap with the wall panel placement portion when viewed in the vertical direction,
The washing floor floor pan, wherein the floor material has an engaging portion that is provided on a lower side and engages with an edge of the opening. The floor material has a convex portion that is provided on the lower surface and is fitted into the opening to fill the entire opening.
The washing floor floor pan according to claim 1, wherein the engaging portion is provided at a peripheral portion of the convex portion. The floor substrate is
A receiving plate in which the opening is formed;
A support frame for supporting the backing plate from below;
Have
The lower surface of the engaging portion is located above the lower surface of the support frame,
The wash floor floor pan according to claim 1 or 2, wherein an engaged portion to which the engaging portion is engaged is provided on at least one side surface of the opening and the support frame. The engaged portion is a pressing piece that protrudes from the inner peripheral surface of the opening toward the inside of the opening.
When the floor surface material is placed on the floor base material, the engaging portion engages with the engaged portion by temporarily pushing the pressing piece toward the outside of the opening. And
When the floor material is thermally expanded, the pressing piece maintains the state of protruding from the inner peripheral surface of the opening toward the inside of the opening to restrain the floor material, and The wash floor floor pan according to claim 3, wherein a floor material is prevented from floating from the floor base material.

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