JP6763662B2 - Bathroom floor structure - Google Patents

Description

The present invention relates to a bathroom floor structure.

Conventionally, there is known a bathroom floor structure in which a waterproof pan is placed on a frame adjusted to a predetermined height from the skeleton and the waterproof pan is fixed to the frame. In the floor structure of the bathroom, it is necessary to reinforce the waterproof pan from the back side in order to suppress the bending of the waterproof pan due to the weight of the user. Here, as a technique for reinforcing the waterproof pan, a structure in which a plurality of support legs are provided on the back side of the waterproof pan (see Patent Document 1) and a structure in which a crosspiece is provided near the center of the frame (see Patent Document 2) are known. ing.

Japanese Unexamined Patent Publication No. 2014-9523 Japanese Unexamined Patent Publication No. 2006-169805

However, in the structure described in Patent Document 1, it is necessary to adjust the length of each support leg after attaching a plurality of support legs to the back surface of the waterproof pan at the site, in order to improve work efficiency. There was a request to reduce the number of support legs.
Further, in the structure described in Patent Document 2, in order to prevent noise due to contact between the waterproof pan and the crosspiece, the back side of the waterproof pan and the crosspiece are fastened with bolts prior to carrying in the frame. In this case, the waterproof pan becomes an obstacle in the subsequent frame loading work, drain trap installation work, etc., and the efficiency of the entire construction work is poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a bathroom floor structure in which work efficiency is improved while ensuring the strength of a waterproof pan.

In order to achieve the above object, the present invention presents a frame (for example, a frame 20 described later) arranged on a skeleton (for example, a floor slab 100 described later) and a waterproof pan (for example, a waterproof pan described later) placed on the frame. A bathroom floor structure (for example, a bathroom floor structure 10 described later) including a waterproof pan 30), wherein the frame includes at least one crosspiece (for example, a crosspiece 23 described later) and the crosspiece. The waterproof pan has an engaged portion (for example, an engaged portion 25 described later) formed on the upper surface thereof, and the waterproof pan is provided on the back surface thereof and engages with the engaged portion (for example). For example, a bathroom floor structure having an engaging portion 37) described later is provided.

Further, the crosspiece is formed in a hollow shape, and the engaged portion is composed of openings (for example, openings 25A and 25B described later) formed on the upper surface of the crosspiece, and the engaging portion is formed. It is preferably composed of claw-shaped members (for example, claw-shaped members 38A and 38B described later) that engage with the opening.

Further, the claw-shaped member extends from a base portion (for example, a base portion 381 described later) fixed to the back surface of the waterproof pan (for example, the back surface 35 described later) and a lower portion of the base portion along the back surface of the waterproof pan. The waterproof pan has an engaging claw (for example, an engaging claw 382 described later), and the waterproof pan is slid and moved in a direction in which the engaging claw extends while being placed on the frame. It is preferable that the engaging claw engages with the opening edge of the opening (for example, the opening edge 251 described later) and is fixed to the frame.

Further, the waterproof pan is formed in a rectangular shape and has a drainage port portion (for example, a drainage port portion 32 described later) formed in the vicinity of one side thereof, and the engaging claw has the drainage port portion. It is preferable that the waterproof pan extends from one side of the formed waterproof pan toward the other side facing the one side.

Further, it is preferable that the crosspiece is arranged on the lower side of the outer peripheral portion (for example, the outer peripheral portion 21 described later) of the frame.

Further, the engaging claw is a plate-shaped member (for example, a plate-shaped member described later) which is arranged at a position deviated from the base portion on one side in a direction orthogonal to the extending direction and has a predetermined width in the vertical direction. A first inclined portion (for example, a first inclined portion 385 described later) which is composed of 383) and is formed on the proximal end side and is inclined upward toward the proximal end side, and the other is formed on the lower end side thereof and is inclined toward the lower end side. It is preferable to have a second inclined portion (for example, a second inclined portion 386 described later) that inclines to the side.

According to the present invention, it is possible to provide a bathroom floor structure with improved work efficiency while ensuring the strength of the waterproof pan.

It is a top view of the bathroom which concerns on one Embodiment of this invention. It is an exploded perspective view of the floor structure of the bathroom which concerns on this embodiment. It is a top view of the frame provided in the floor structure of the bathroom which concerns on this embodiment. It is a side view of the frame provided in the floor structure of the bathroom which concerns on this embodiment. It is a perspective view of the frame provided in the floor structure of the bathroom which concerns on this embodiment. It is a bottom view of the waterproof pan provided in the floor structure of the bathroom which concerns on this embodiment. It is a side view of the claw-shaped member provided in the floor structure of the bathroom which concerns on this embodiment. It is a bottom view of the claw-shaped member provided in the floor structure of the bathroom which concerns on this embodiment. It is a figure for demonstrating the installation work of the waterproof pan provided in the floor structure of the bathroom which concerns on this embodiment. It is a figure for demonstrating the state before inserting the engaging part of the floor structure of the bathroom which concerns on this Embodiment into an opening. It is a figure for demonstrating the state after inserting the engaging part of the floor structure of the bathroom which concerns on this Embodiment into an opening. It is a figure for demonstrating the state at the time of the engagement part and the opening part of the floor structure of the bathroom which concerns on this embodiment.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a plan view showing the bathroom 1 according to the present embodiment, and FIG. 2 is a perspective view of the floor structure 10 of the bathroom according to the present embodiment.

The bathroom floor structure 10 (washing area 2) of the present embodiment constitutes a bathroom 1 of a condominium or a detached house. The bathroom 1 has a washing place 2, a bathtub 3, a counter 4, a storage shelf 5, a mirror 6, a faucet 7, a shower unit 8, and a door unit 9. As shown in FIG. 1, the bathtub 3 is provided adjacent to the washing place 2, and the counter 4, the storage shelf 5, the mirror 6, the faucet 7, the shower part 8 and the door part 9 are provided above the washing place 2.

As shown in FIG. 2, the bathroom floor structure 10 includes a frame 20, a waterproof pan 30, and a drain trap 40.

The frame 20 is arranged on the floor slab 100 as a skeleton by adjusting the support legs 22 provided on the crosspiece 23 connected to the outer peripheral portion 21 of the frame 20. Further, the surface 31 of the waterproof pan 30 serves as the floor of the washing place 2, and the waterproof pan 30 is placed on the frame 20 so that the waterproof pan 30 is supported by the frame 20. The back surface 35 of the waterproof pan 30 is supported on the upper surface of the crosspiece 23 of the frame 20. As a result, the waterproof pan 30 is reinforced by the crosspiece 23. Further, the waterproof pan 30 is provided with an engaging portion 37 on the back surface 35 thereof, and the engaging portion 37 is engaged with the engaged portion 25 formed on the upper surface of the crosspiece 23. As a result, noise can be prevented between the crosspiece 23 and the back surface 35 of the waterproof pan 30, and the installation work of the waterproof pan 30 can be easily performed. Further, the drain trap 40 is attached to the attachment portion 24 of the frame 20 and is connected to the drain pipe 44 installed in the gap between the floor slab 100 and the frame 20. The washroom inflow port 41 of the drain trap 40 is connected to the drain port 32 of the waterproof pan 30.

Hereinafter, the frame 20 will be described in detail with reference to FIGS. 3A to 3C. FIG. 3A is a plan view of the frame 20 included in the bathroom floor structure 10 according to the present embodiment, FIG. 3B is a side view of the frame 20 included in the bathroom floor structure according to the present embodiment, and FIG. 3C is a side view. It is a perspective view of the frame 20 provided in the floor structure of the bathroom which concerns on this embodiment.

As shown in FIG. 3, the frame 20 includes an outer peripheral portion 21, a support leg portion 22, a crosspiece portion 23, a mounting portion 24, and an engaged portion 25.

The outer peripheral portion 21 is formed in a rectangular shape, and has a pair of long side beams 21A and 21B facing each other and a pair of short side beams 21C and 21D facing each other. The long side beam 21A is located on the bathtub 3 side. The central portion of the long side beam 21A in the longitudinal direction of the long side beam 21A constitutes an attachment portion 24 composed of a side surface portion and a bottom surface portion of the long side beam 21A, and a drain trap 40 is attached to the attachment portion 24. Be done. One end of the short side beam 21C is connected to one end of the long side beam 21A (the lower end of the long side beam 21A in FIG. 3), and the other end of the short side beam 21C is one end of the long side beam 21B (in FIG. 3). It is connected to the lower end of the long side beam 21B). One end of the short side beam 21D is connected to the other end of the long side beam 21A (the upper end of the long side beam 21A in FIG. 3), and the other end of the short side beam 21D is the other end of the long side beam 21B (FIG. 3). It is connected to the upper end of the long side beam 21B in No. 3).

The crosspiece 23 has three crosspieces formed in a hollow shape, that is, a first crosspiece 23A, a second crosspiece 23B, and a third crosspiece 23C. One end of the first crosspiece 23A is connected to the lower surface of the short side beam 21C (the lower surface of the short side beam 21C in FIG. 3), and the other end of the first rail 23A is connected to the lower surface of the short side beam 21D (in FIG. 3). It is connected to the lower surface of the short side beam 21D). Further, one ends of the second rail 23B and the third rail 23C are connected to the side surfaces of the support legs 22A and the support legs 22B provided on the long side beams 21A, respectively, and other than the second rail 23B and the third rail 23C. Each end is connected to the side surface of the first rail 23A (the intermediate portion of the first rail 23A in FIG. 3). The crosspiece 23 is provided one step below the outer peripheral portion 21.

The support leg portion 22 has four support legs 22A to 22D, and each of the support legs 22A to 22D has a height (length) adjusting mechanism. In the present embodiment, as shown in FIG. 3, the height of the frame 20 is adjusted by using the four support legs 22A to 22D. Of the four support legs, two support legs 22A and 22B are installed at the lower end of the long side beam 21A and extend downward, and the remaining two support legs 22C and 22D are the first. It is installed at the lower end of the crosspiece 23A and extends downward. After the height of the outer peripheral portion 21 is adjusted by the support legs 22A to 22D, the outer peripheral portion 21 is placed on the floor slab 100 and fixed to the floor slab 100 with an adhesive or the like.

The engaged portion 25 has openings 25A and 25B formed on the upper surfaces of the second crosspiece 23B and the third crosspiece 23C, and is configured by a hole through which the engaging portion 37 of the waterproof pan 30 described later can be inserted. Has been done. After inserting the engaging portion 37 into the openings 25A and 25B, by sliding the waterproof pan 30, the opening edge 251 of the openings 25A and 25B (see FIG. 7B) is exposed to the front end and the back surface of the engaging portion 37. It is sandwiched between 35 and engaged.

Further, the drain trap 40 has a washing place inlet 41 that opens on the upper surface, a bathtub inlet 42 that opens on the upper surface, and an outlet 43 that opens in the direction opposite to the bathtub side. The washing place inlet 41 is connected to the drain port 32 of the waterproof pan 30, and the bathtub inlet 42 is connected to the drain port 3A (see FIG. 1) in the bathtub 3. The outlet 43 is connected to the drain pipe 44.

Hereinafter, the waterproof pan 30 will be described with reference to FIG. 4 and the like. FIG. 4 is a plan view of the back surface 35 of the waterproof pan 30 included in the floor structure of the bathroom according to the present embodiment.

The waterproof pan 30 forms a single plate as a whole. The waterproof pan 30 has a front surface 31 which is formed in a rectangular shape and covers the entire area of the washing place 2, and a back surface 35 which is formed in a size slidable in a predetermined direction in the inner region of the outer peripheral portion 21 of the frame 20. To be equipped. The peripheral edge of the waterproof pan 30 is placed over the entire outer peripheral portion 21 of the frame 20 and fixed to the outer peripheral portion 21.

On the front surface 31 near the outer periphery of the waterproof pan 30, a circular drainage port 32 that communicates with the back surface 35 is formed (see FIG. 2). The surface 31 is inclined downward from the four corners on the surface 31 toward the drainage port 32. The drainage port 32 is located at the lowest position on the surface 31 of the waterproof pan 30, and a storage recess 33 having a shallowly recessed upper surface is formed around the drainage port 32. The accommodating recess 33 substantially matches the shape of the accommodating recess 33 and accommodates a removable perforated plate.

On the back surface 35 of the waterproof pan 30 shown in FIG. 4, a plurality of ribs 36 projecting downward substantially at right angles to the waterproof pan 30 are provided over the entire back surface 35 as a means for increasing the rigidity against a load acting on the front surface 31 of the waterproof pan 30. It is formed over. The ribs 36 are provided in a grid pattern along each side of the back surface 35. The protruding height of the rib 36 is different between the peripheral portion and the central portion. Specifically, the protruding height of the rib 36 at the peripheral portion is low, and the protruding height of the rib 36 at the central portion is higher. The step formed by the difference between the protruding height of the peripheral edge portion and the protruding height of the central portion coincides with the step formed by the outer peripheral portion 21 of the frame 20 and the crosspiece 23. Therefore, the lower end of the rib 36 at the peripheral portion abuts on the upper end of the outer peripheral portion 21, and at the same time, the lower end of the rib 36 at the central portion abuts on the upper surface of the crosspiece 23 and is supported. Therefore, the waterproof pan 30 is reinforced by the crosspiece 23 via the rib 36. Therefore, in order to reinforce the waterproof pan 30, it is not necessary to attach the support legs to the back surface 35 of the waterproof pan 30.

Further, an engaging portion 37 is attached at a position where the ribs 36 on the back surface 35 intersect. The engaging portion 37 has two claw-shaped members 38A and 38B, which will be described later, and the claw-shaped member 38A is engaged with the opening 25A provided in the second crosspiece 23B and is provided in the third crosspiece 23C. A claw-shaped member 38B engages with the opening 25B. As a result, the back surface 35 of the waterproof pan 30 and the crosspiece 23 are fastened, and the noise caused by the contact between the back surface 35 of the waterproof pan 30 and the crosspiece 23 can be suppressed.

Hereinafter, the structures of the above-mentioned claw-shaped members 38A and 38B will be described with reference to FIG. FIG. 5A is a side view of the claw-shaped members 38A and 38B included in the bathroom floor structure 10 according to the present embodiment, and FIG. 5B is a side view of the claw-shaped members 38A and 38B included in the bathroom floor structure according to the present embodiment. It is a plan view of the back side.

The claw-shaped members 38A and 38B have a base portion 381 fixed to the back surface 35 of the waterproof pan 30, and an engaging claw 382 extending in the horizontal direction from the lower portion of the base portion 381.

The base portion 381 is provided with four foot portions 381A for attaching to ribs 36 that intersect each other. In FIG. 5A, only two foot portions 381A appear on the front side, and the two foot portions 381A on the back side do not appear. A grid-like vertical rib 36 and a horizontal rib 36 are arranged between the foot portions 381A of the base portion 381. Then, the engaging claw 382 is fixed to the base 381 by the bolt 387, and the claw-shaped members 38A and 38B are firmly fixed by the back surface 35 of the waterproof pan 30.

The extending direction of the engaging claw 382 coincides with the extending direction of the second crosspiece 23B and the third crosspiece 23C. The waterproof pan 30 is placed on the frame 20 and is slid in the direction in which the engaging claws 382 extend, so that the engaging claws 382 engage with the opening edges 251 of the openings 25A and 25B to engage the frame. It is fixed at 20.
More specifically, the engaging claw 382 extends from one side of the waterproof pan 30 on which the drain port portion 32 is formed toward the other side facing the one side. That is, in FIG. 1, the drainage port is straddled and extends in the direction opposite to the bathtub (from left to right in FIG. 1).

As shown in FIG. 5A, the engaging claw 382 includes a plate-shaped member 383 having a plate-shaped member 383, a tip portion 384, a first inclined portion 385, and a second inclined portion 386.

As shown in FIG. 5B, the plate-shaped member 383 of the engaging claw 382 is arranged at a position shifted from the base portion 381 to one side (left side shown in FIG. 5B) in the direction orthogonal to the extending direction of the engaging claw 382. It has a predetermined width in the vertical direction as shown in FIG. 5A.

The tip portion 384 constitutes the tip portion of the plate-shaped member 383 in the extending direction of the engaging claw 382, and a claw that engages with each opening edge 251 of the openings 25A and 25B is formed.

The first inclined portion 385 is formed on the proximal end side of the engaging claw 382, and is inclined upward toward the proximal end side. That is, at a position separated downward from the base end, the first inclined portion 385 is inclined with respect to the vertical direction, but the closer to the base end, the closer to the vertical direction, and above the head of the bolt 387. At the position of, it is parallel to the vertical direction. The first inclined portion 385 is used as a guide for guiding the claw-shaped members 38A, 38B to the openings 25A, 25B when the claw-shaped members 38A, 38B are inserted into the openings 25A, 25B.
Specifically, since the lower end of the first inclined portion 385 is inclined toward the center of the openings 25A and 25B, respectively, when the claw-shaped members 38A and 38B are inserted from above the openings 25A and 25B, respectively. When a part of the first inclined portion 385 hits the openings 25 and 25B, the claw-shaped members 38A and 38B are moved by the weight of the waterproof pan 30 due to the sliding of the first inclined portion 385 with respect to the openings 25 and 25B. It slides down into the openings 25A and 25B, respectively. As a result, the claw-shaped members 38A and 38B are inserted into the openings 25A and 25B, respectively.

The second inclined portion 386 is inclined downward from the drain port portion 32 side of the waterproof pan 30 toward the center of the plate-shaped member 383, that is, from the left to the right in FIG. 1, and is inclined downward. It tilts to the right as shown in FIG. 5B. The second inclined portion 386 is also used as a guide when the claw-shaped members 38A and 38B are inserted into the openings 25A and 25B.
Specifically, when the claw-shaped members 38A and 38B are inserted from above the openings 25A and 25B, respectively, when a part of the second inclined portion 386 hits the opening 25, the second inclined portion 386 and the opening are opened. By sliding with the portion 25, the claw-shaped members 38A and 38B slide down into the openings 25A and 25B, respectively, due to the weight of the waterproof pan 30. As a result, the claw-shaped members 38A and 38B can be inserted into the openings 25A and 25B, respectively.

Hereinafter, the construction process of the floor structure 10 of the bathroom of the present embodiment will be described with reference to FIGS. 6 and 7. It is a figure for demonstrating the installation work of the waterproof pan 30 of the bathroom floor structure 10 which concerns on this embodiment. FIG. 6 is a diagram for explaining the installation work of the waterproof pan 30 of the bathroom floor structure 10 according to the present embodiment, and FIG. 7A is a view showing the engaging portion 37 of the bathroom floor structure 10 according to the present embodiment. It is a figure for demonstrating the state before inserting into the opening 25A and 25B, respectively, and FIG. 7B shows the engaging portion 37 of the bathroom floor structure 10 according to the present embodiment inserted into the opening 25A and 25B, respectively. FIG. 7C is a diagram for explaining the state after the above, and FIG. 7C describes the state at the time of engaging the engaging portion 37 of the bathroom floor structure 10 and the respective openings 25A and 25B according to the present embodiment. It is a figure for.

In the first construction step, the frame 20 is fixed on the floor slab 100. Specifically, the frame 20 is carried into the bathroom 1 before construction, and the long side beams 21B and the short side beams 21C, D are placed on the floor slab 100 in a state of being in contact with the inner wall of the bathroom 1. After that, by adjusting the lengths of the support legs 22A and 22B provided on the long side beam 21B, the support legs 22C provided on the second crosspiece 23B, and the support legs 22D provided on the third crosspiece 23C, the upper end of the outer peripheral portion 21 is formed. Adjust horizontally. After adjusting the height of the frame 20, all the support legs 22 are fixed on the floor slab 100 with an adhesive or the like.
Therefore, in the first construction step, only the frame 20 is first installed in the bathroom 1.

In the second construction step, after the drain trap 40 is attached to the frame 20, the drain pipe 44 is connected. Specifically, after adjusting the drain trap 40 in a predetermined direction, the drain trap 40 is attached to the attachment portion 24 of the frame 20. Next, the drain pipe 44 is connected to the outlet 43.
Therefore, since the upper portion of the frame 20 is an open area, the drain trap 40 can be easily attached and the drain pipe 44 can be easily connected.

In the third construction step, the engaging portion 37 of the waterproof pan 30 is inserted into the openings 25A and 25B of the crosspiece 23. Specifically, first, the short side beams 21C and 21D of the frame 20 are used as guides when the back surface 35 of the waterproof pan 30 is fitted, and the back surface 35 of the waterproof pan 30 is inside the region surrounded by the outer peripheral portion 21. Fit in. As a result, the engaging portion 37 of the waterproof pan 30 is arranged on the upper end surfaces of the second rail 23B and the third rail 23C. Subsequently, the upper end surfaces of the second rail 23B and the third rail 23C are used as guides when the waterproof pan 30 is slid, and the waterproof pan 30 is moved from the drain port portion 32 side toward the center of the waterproof pan 30, that is, Slide in the direction indicated by the arrow in FIGS. 6 and 7A. As a result, when the engaging portion 37 approaches one end of the openings 25A and 25B of the crosspiece 23, the engaging portion 37 is tilted according to the inclination of the first inclined portion 385 and the second inclined portion 386 provided in the engaging portion 37. The sliding and engaging portions 37 are inserted through the openings 25A and 25B (see FIG. 7B).
Therefore, in the third construction step, the short side beams 21C and 21D can be used as a guide for the fitting work. Further, the second rail 23B and the third rail 23C can be used as a guide for the sliding work. Further, by using the first inclined portion 385 (see FIG. 5A) and the second inclined portion 386 of the engaging portion 37, the insertion work can be performed more easily.

In the fourth construction step, the engaging portion 37 and the end portion of the opening 25 are engaged. Specifically, as shown in FIGS. 7B and 7C, while the engaging portion 37 is inserted through the opening 25, the waterproof pan 30 is placed in the direction opposite to the drain port portion 32 side (in FIG. 7B). Slide in the direction indicated by the arrow). As a result, the ends of the openings 25A and 25B are gripped between the tip portion 384 of the engaging portion 37 and the base portion 381 (that is, the back surface 35 of the waterproof pan 30), and the crosspiece 23 and the back surface 35 of the waterproof pan 30 are held. And are concluded.
Therefore, since the back surface 35 of the waterproof pan 30 is supported and further reinforced by the crosspiece 23, it is not necessary to attach the support legs 22 to the back surface 35 of the waterproof pan 30 only for reinforcement in this embodiment. Further, in the present invention, since the crosspiece 23 and the back surface 35 of the waterproof pan 30 are engaged with each other, the noise generated by the crosspiece 23 and the waterproof pan 30 can be suppressed.

According to this embodiment, the following effects are achieved.
In the present embodiment, in the bathroom floor structure 10 including the frame 20 arranged on the floor slab 100 which is a skeleton and the waterproof pan 30 mounted on the frame, the frame 20 is at least one crosspiece. It has a crosspiece 23, and an engaged portion formed on the upper surface of the crosspiece. The waterproof pan 30 is provided on the back surface 35 and has an engaging portion 37 that engages with the openings 25A and 25B.

As a result, the back surface 35 of the waterproof pan 30 placed on the frame 20 engages with the crosspiece 23 of the frame 20, and the front surface 31 of the waterproof pan 30 is reinforced by the crosspiece 23 to increase the strength of the waterproof pan 30. Can be secured. Further, since the waterproof pan 30 can be engaged only by sliding the engaging portion, the work efficiency can be improved. In addition, it is possible to prevent noise due to contact between the crosspiece 23 and the back surface 35 of the waterproof pan 30.

Further, according to the present embodiment, the crosspiece 23 is formed in a hollow shape, the engaged portion is composed of openings 25A and 25B formed on the upper surface of the crosspiece 23, and the engaging portion 37 is formed. It was decided to be composed of claw-shaped members 38A and 38B that engage with the openings 25A and 25B.
As a result, the claw-shaped members 38A and 38B are inserted into the crosspiece 23 from the openings 25A and 25B of the crosspiece 23, so that the openings 25A and 25B and the claw-shaped members 38A and 38B are engaged with each other, respectively. it can. As a result, the frame 20 and the waterproof pan 30 can be more easily engaged with each other, and the construction work can be made more efficient.

Further, according to the present embodiment, the claw-shaped members 38A and 38B have a base portion 381 fixed to the back surface of the waterproof pan 30, and an engaging claw 382 extending from the lower portion of the base portion 381 along the back surface of the waterproof pan 30. The waterproof pan 30 is slidably moved in the direction in which the engaging claw 382 extends in a state where the waterproof pan 30 is placed on the frame 20, so that the engaging claw 382 is moved to the opening edges 251 of the openings 25A and 25B. It is configured to be engaged and fixed to the frame 20.
As a result, by sliding the waterproof pan 30 in the extending direction of the engaging claws 382, the openings 25A and 25B are specifically engaged by the claw-shaped members 38A and 38B. As a result, the construction work of the floor structure of the bathroom can be made efficient.

Further, according to the present embodiment, the extending direction of the engaging claw 382 is made to coincide with the extending direction of the crosspiece 23.
As a result, the waterproof pan 30 is slid in the extending direction of the engaging claw 382 in a state where the extending direction of the engaging claw 382 and the extending direction of the crosspiece 23 are matched, thereby covering the engaging portion 37. It can be inserted through the engaging portion and engaged. As a result, the upper end portion of the crosspiece 23 can be used as a slide guide for the engaging claw 382. As a result, the construction work of the floor structure of the bathroom can be made efficient.

Further, according to the present embodiment, the waterproof pan 30 is formed in a rectangular shape and has a drainage port portion 32 formed in the vicinity of one side thereof, and the engaging claw 382 is formed with a drainage port portion 32. The structure is such that the waterproof pan 30 extends from one side to the other side facing the one side.
As a result, the extending direction of the engaging claw 382 coincides with the direction in which the waterproof pan 30 is slid, and by sliding the waterproof pan 30 from the drain port portion 32 side toward the center thereof, the waterproof pan 30 is engaged with the engaging portion 37. The parts can be engaged. Since this slide is performed before the bathtub is installed in the bathroom, the waterproof pan 30 can be slid from the space of the bathtub before the bathtub is arranged, which makes the construction work of the floor structure of the bathroom efficient. Can be done.

Further, according to the present embodiment, the crosspiece 23 is arranged below the outer peripheral portion 21 of the frame 20.
As a result, the inside of the outer peripheral portion 21 (short side beams 21C, 21D) of the frame 20 can be used as a guide when the back surface 35 of the waterproof pan 30 is fitted or when the waterproof pan 30 is slid, and the floor structure of the bathroom can be used. The construction work can be made efficient.

Further, according to the present embodiment, the engaging claw 382 is a plate-shaped member 383 that is arranged at a position deviated from the base on one side in a direction orthogonal to the extending direction and has a predetermined width in the vertical direction. It is configured and has a first inclined portion 385 formed on the proximal end side and inclined upward toward the proximal end side, and a second inclined portion 386 formed on the lower end side thereof and inclined upward toward the lower end side. It was configured.
As a result, the inclination of the first inclined portion 385 and the inclination of the second inclined portion 386 can be used as guides when the engaging portions 37 are inserted into the openings 25A and 25B, respectively, so that the waterproof pan 30 can be simply slid. The joint portion 37 and the engaged portion can be easily engaged with each other, and the construction work of the floor structure of the bathroom can be made efficient.

The present invention is not limited to the above embodiment, and modifications, improvements, and the like within the range in which the object of the present invention can be achieved are included in the present invention.
In the present embodiment, the number of support legs 22 has been described with four, but the number is not limited to this, and the number can be appropriately changed if the number is three or more.
Further, the structure in which the beam portion 23 is composed of three beams (first beam 23A, second beam 23B and third beam 23C) has been described. For example, when the area of the washing place 2 is small, the first beam 23A is unnecessary. Yes, the other ends of the second crosspiece 23B and the third crosspiece 23C may be extended to the lower end of the long side beam 21B and connected. Further, one crosspiece connected to each of the long side beams 21A and 21B may be provided near the center of the frame 20.

1 ... Bathroom 2 ... Washing area 3 ... Bathtub 10 ... Bathroom floor structure 20 ... Frame 21 ... Outer circumference 21A, 21B ... Long side beams 21C, 21D ... Short side beams 22 ... Support legs 23 ... Crosspieces (crosspieces)
24 ... Mounting portion 25 ... Engaged portion 25A, 25B ... Opening 251 ... Opening edge 30 ... Waterproof pan 31 ... Front surface 32 ... Drainage port 35 ... Back surface 37 ... Engaging portion 38A, 38B ... Claw-shaped member 381 ... Base 382 ... Engagement claw 383 ... Plate-shaped member 385 ... First inclined portion 386 ... Second inclined portion 40 ... Drain trap 100 ... Floor slab (framework)

Claims (7)

A bathroom floor structure including a frame arranged on the skeleton and a waterproof pan placed on the frame.
The frame has at least one crosspiece and an engaged portion formed on the upper surface of the crosspiece.
The waterproof pan has a bathroom floor structure in which ribs that intersect in a grid pattern are provided on the back surface thereof , and an engaging portion that engages with the engaged portion is provided at a position where the ribs intersect . The crosspiece is formed in a hollow shape.
The engaged portion is composed of an opening formed on the upper surface of the crosspiece.
The bathroom floor structure according to claim 1, wherein the engaging portion is composed of a claw-shaped member that engages with the opening. The claw-shaped member has a base portion fixed to the back surface of the waterproof pan, and an engaging claw extending from the lower portion of the base portion along the back surface of the waterproof pan.
The waterproof pan is slid and moved in the direction in which the engaging claws extend while being placed on the frame, so that the engaging claws engage with the opening edge of the opening and are fixed to the frame. The floor structure of the bathroom according to claim 2. The floor structure of the bathroom according to claim 3, wherein the extending direction of the engaging claw coincides with the extending direction of the crosspiece. The waterproof pan has a rectangular shape and has a drainage port formed in the vicinity of one side thereof.
The bathroom floor structure according to claim 4, wherein the engaging claw extends from one side of the waterproof pan on which the drainage port is formed toward the other side facing the one side. The bathroom floor structure according to any one of claims 3 to 5, wherein the crosspiece is arranged below the outer peripheral portion of the frame. The engaging claw
It is composed of a plate-shaped member arranged at a position deviated from the base on one side in a direction orthogonal to the extending direction and having a predetermined width in the vertical direction.
The first inclined portion formed on the base end side and inclined upward toward the base end side,
The floor structure of a bathroom according to any one of claims 3 to 6, further comprising a second inclined portion formed on the lower end side and inclined toward the other side toward the lower end side.

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