JPH09291574A - Joining part structure of divided floor pan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joining part structure of a divided floor pan which improves the water stop property of a joining part and is provided with the construction property. SOLUTION: A divided floor pan 1 is an assembly body of at least a first divided pan 7, a second divided pan 8, and a third divided pan 9. An end face of the second divided pan 8 is overlapped on an end face of the first divided pan 7 through a first packing 24, and an end face of the third divided pan 9 is overlapped on the end face of the second divided pan 8 through a second packing 28 to constitute a three-layer structure joining part. An end 16a of the second divided pan 8 which is in the intermediate position in the direction of height is formed into the pointed shape. Consequently, since a clearance is not formed between the first packing 24 and an end of the second divided pan 8 when the first, second, and third divided pans 7, 8, 9 are connected, water leakage does not occur, and good water stop property is obtained. Moreover, the packings 24, 28 are merely provided among the first, second, and third divided pans 7, 8, 9 to stop water, and it is unnecessary to fill caulking material among them so that time and labor can be saved in the construction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of a split floor pan provided by joining a plurality of split pans.

[0002]

2. Description of the Related Art As a split floor pan provided by joining a plurality of split pans, for example, there is a technique described in Japanese Utility Model Laid-Open No. Sho 62-89363 "Drainage Floor". This technique has a structure in which caulking material is adhered between the side edges of the floor plate divided pieces a and the floor plate divided pieces b and hermetically sealed. Each floor board division piece a, b,
The dimensions of the floor pans can be changed by adjusting the dimensions of the side edges of c and d that are overlapped with each other, but regarding how to fix each floor plate division piece a, b, c, d I have not listed anything.

Further, the technique described in Japanese Patent Application Laid-Open No. 5-214752, "Waterproof Pan for Bathroom", is a pan for bathtub installation 12
And the connecting edge of the washbasin pan 14 to the rising walls 34 and 4
4, the horizontal portions 36 and 46, the hanging pieces 40 and 50, and the backup material 42 made of resin concrete or the like is interposed between the rising wall 34 of the pan 12 for installing the bathtub and the hanging piece 40, and the washing room pan is provided. A backup member 54 made of a square pipe made of aluminum or the like is interposed between the rising wall 44 of 14 and the hanging piece 50, and a packing 56 is interposed between the butted hanging pieces 40 and 50. Hanging pieces 40 and 5 from the wall 34 side
0, the packing 56 is penetrated, the text screw 62 is inserted even to the backup material 54, and it couple | bonded and fixed.

[0004]

[Problems to be Solved by the Invention]
The technique described in Japanese Patent Publication No. 3 has to perform a work of filling a caulking material, which is a putty-like material, between the side ends of the floor plate divided pieces a and b, and the fixed portion The work of filling the caulking material is more time-consuming and the workability of the fixing part is poorer than the work that can be done to stop the water only by sandwiching the packing. Further, nothing is described about the method of fixing the floor plate divided pieces to each other, and the strength of the fixing portion is not sufficient.

In the technique disclosed in Japanese Patent Laid-Open No. 5-214752, the backup material 4 in which the text screw 62 is a joint portion is used.
Since it penetrates 2, 54 and the packing 56, the water blocking property is poor and there is a risk of water leakage.

FIG. 13 is a sectional view of an essential part of a joint portion of divided floor pans stacked in three layers. The divided floor pan 100 is a combination of at least first, second and third divided pans 101, 102 and 103. Each divided pan 101, 10 that is a body and is stacked
2, 103 end face 101a, end portion 102a, end face 103
The first, second, and third divided pans 1 have a three-layer structure joint part in which the first and second packings 104 and 105 are interposed between a.
Before tightening 01, 102, and 103, the end portion 102b of the second split pan 102 and the end portion 104a of the first packing 104 are aligned.

FIG. 14 is a cross-sectional view of an essential part of a fixed state of the joint portion of the split floor pans stacked in three layers, and is a cross-sectional view of the result obtained by vertically compressing FIG. As is clear from the figure, the first packing 104 and the second packing 105 at the portions where the respective divided pans 101, 102, 103 are overlapped in three layers are sufficiently compressed, but the first divided pan 101, the third divided pan 10
In the two-layer portion of No. 3, since the second split pan 102 and the first packing 104 are not provided, the compression of the second packing 105 becomes insufficient, and the end portion 102b of the second split pan 102 and the first packing 104, and the second packing Gap 106 between packing 105
Occurs, which causes incomplete water stopping and water leakage.

Each packing 104, 105 is made of 19 times foam, and each packing 104, 105 is made of 5 times.
When the compression is 0% or more, a predetermined water blocking performance is exhibited, but the structure without the second dividing pan 102 cannot compress 50% or more due to the structure, and the water blocking is incomplete. Become.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a joint structure for a split floor pan, which has improved workability and water resistance at the joint.

[0010]

In order to solve the above-mentioned problems, the first aspect of the present invention is that the floor pan is a combination of at least first, second and third divided breads, and the first divided bread is The end face of the second split pan is overlaid on the end face via the first packing, and the end face of the third split pan is overlaid on the end face of the second split pan via the second packing to form a three-layer structure joint. The divided floor pan described above is provided, and the end portion of the second divided pan in the middle in the height direction has a pointed shape.

Since the end portion of the second divided pan has a pointed shape, when the first, second and third divided pans are joined with screws,
The compressed first packing wraps around the end portion side of the joint portion of the second split pan and follows the shape of the end portion perfectly, so that the waterproofness is good. Moreover, since packing is only required between the first, second, and third divided pans to stop the water, and the work of filling the caulking material is not required, the construction is labor-saving, Good workability.

According to a second aspect of the present invention, the first packing extends over a predetermined length from the end of the second divided pan. When the first, second, and third divided pans are joined with screws, the sufficiently compressed first packing wraps around the end of the second divided pan sufficiently to fit the end of the second divided pan. Since it is in close contact with the first packing and no gap is formed between the first packing and the end portion of the second split pan, water leakage does not occur, and the waterproofness is good.

According to the third aspect, the third packing is interposed between the first packing and the first divided pan. 1st divided bread and 3rd
Even in the two-layer portion with the packing, the second packing is sufficiently compressed and water can be surely stopped.

According to a fourth aspect of the present invention, in a divided floor pan in which a second divided pan is superposed on and joined to an end surface of the first divided pan via a packing, a metal plate having a predetermined area is provided on a lower surface of the end surface of the first divided pan. Laying, laying a foam plate of a predetermined thickness on the lower surface of the metal plate, and screwing a screw having a length that does not penetrate the foam plate from above into the metal plate and the foam plate
Fixed the dividing pan. When joining the first split pan and the second split pan by stacking them together, it is possible to secure water resistance simply by screwing the screws from above the second split pan, and it is necessary to fill all the gaps with caulking material. Since it does not have any work, it does not take time and effort and is easy to install.

According to a fifth aspect of the present invention, the width of the metal plate and the foam plate is set to a length dimension corresponding to a variable range of overlapping the divided pans. Even if the overlapping position of the split pans is changed according to the site, water resistance can be secured simply by screwing on the second split pan, and the workability is good.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a perspective view of a split floor pan according to the present invention. The split floor pan 1 includes wash areas 2A and 2B and a wash area 2.
A bathtub installation portion 3A, 3B deeper than A, 2B is provided.
A wall 4 up to the height of the washing areas 2A, 2B is erected on the periphery of the bathtub installation parts 3A, 3B side, and on the wall 4 and the washing area 2A,
The rising portion 5 is provided continuously over the entire circumference of the peripheral portion of 2B.

FIG. 2 is an exploded perspective view of the split floor pan of the present invention. The split floor pan 1 includes a first split pan 7, a second split pan 8, a third split pan 9, and a fourth split pan. 10 divided into four divided pans, the first and second divided pans 7 and 8 constitute the bathtub installation portions 3A and 3B, and the third and fourth divided pans 9 and 10 are formed.
Configure wash areas 2A and 2B.

The first divided pan 7 has the bathtub installation section 3A.
And a stacking part 11 extending from the bathtub installation part 3A to the second split pan 8 side, and a wall part 12 on the washroom side of the bathtub installation part 3A and the stacking part 11 (the third split pan 9 side). And the joint portion 13 provided through The wall portion 4 and the rising portion 5 are provided on the peripheral portions of the bathtub installation portion 3A and the overlapping portion 11. The overlapping portion 11 is a portion 11a where the first packing 24 overlaps in FIG. 2, and the width dimension of this portion 11a corresponds to the variable range of the split floor pan 1. Further, a metal plate and a foam plate described later are arranged on the lower surface (rear surface) of this portion 11a (see FIG. 11).

The overlapping portion 11 has a sufficient length dimension, and when the second divided pan 8 is overlapped, the total length of the first and second divided pans 7 and 8 overlapped by changing the overlapping range. The dimensions can be changed freely.

Similarly, the joint portion 13 has a sufficient length dimension (direction orthogonal to the overlapping portion 11), and when the third divided pans 9 are overlapped, the overlapping range is changed to overlap the first portion. The total length dimension of the third divided pans 7 and 9 can be freely changed. The drain port 14 is formed on the rising portion 5 side of the joint portion 13.

The second divided pan 8 comprises a bathtub installation section 3B and a joint section 16 provided on the washroom side of the bathtub installation section 3B via a wall section 15. The wall portion 4 and the rising portion 5 are provided on the peripheral portion of the bathtub installation portion 3B.

The joint portion 16 has a sufficient length dimension (in the direction of the fourth divided pan 10), and when the fourth divided pan 10 is superposed, the overlapping range is changed to change the second and fourth divided pans 8 and 1.
The total length dimension of 0 can be freely changed.

The third divided pan 9 is located at the washing place 2A, the overlapping portion 17 extending from the washing place 2A, and the bath installation portion side (the first divided bread 7 side) of the washing place 2A and the overlapping portion 17. And the joint portion 18 provided. Washing place 2A
And the rising portion 5 is provided on the peripheral portion of the overlapping portion 17.

The overlapping portion 17 is formed lower than the washing place 2B of the fourth divided pan 10 by a step approximately equal to the thickness of the divided floor pan 1, and when the divided floor pans are overlapped, the washing places 2A, 2B, and The bathtub installation portions 3A and 3B have the same height. In addition, the overlapping portion 17 has a sufficient length dimension (in the direction of the fourth divided pan 10), and when the fourth divided pan 10 is overlapped, the overlapping range is changed to the third.
The total length dimension of the fourth divided pans 9 and 10 can be freely changed.

The fourth divided pan 10 comprises a washing area 2B and a joint portion 19 provided on the side of the bath setting portion of the washing area 2B (on the side of the second divided pan 8). A rising portion 5 is provided on the periphery of the washing place 2B.
Is provided.

FIG. 3 is a perspective view of a main portion of the joint portion of the first divided pan, and the first divided pan 7 has a concave portion 2 at the center of the joint portion 13.
0 is provided. The concave portion 20 extends from the flat surface portion 21 of the concave portion 20 to the right slope portion 22 (on the side of the bathtub installation portion 3A in FIG. 2).
A rectangular packing (third packing according to the claims) 23 is attached along the edge 20a of the above. The size of the packing 23 is slightly larger than the variable size of the second divided pan 8 and the third divided pan 9.

FIG. 4 is a cross-sectional view of a main portion of the joint portion of the second divided pan, and the second divided pan 8 has the end portion 16a of the joint portion 16 on the first divided pan 7 side (right side in the drawing), for example, 45 downwards
Make a pointed shape cut at °. The tapered shape of the second divided pan 8 may be in a range overlapping with the third packing 23 (that is, a predetermined dimension of the end portion 16a of the joining portion 16 from the fourth divided pan 10 side).

On the lower surface of the end of the second divided pan 8, from the end of the joint 16 on the side of the fourth divided pan 10 to the wall 4 and the rising portion 5 through the lower surface of the bathtub installation portion 3B (see FIG. 2). ), And a band-shaped packing (first packing described in claims) 24 is attached. In the figure, the packing (first packing) 24 extends from the end portion 16a of the joint portion 16 of the second divided pan 8 on the first divided pan 7 side to the thickness of the joint portion 16 or more, and Provide in the overlapping range. The tip 16a of the joining portion 16 may have any pointed shape such as V-shaped, rounded-shaped, rounded-shaped, or U-shaped.

From the end of the joint portion 16 having the packing (first packing) 24 attached to the first divided pan 7 side (the right side in the figure) of the second divided pan 8 to the bath setting portion from the end of the fourth divided pan 10 side. Three
Through the lower surface of B, up to the wall portion 4 and the rising portion 5 (see FIG. 2), penetrating from the upper surface to the lower surface, guide holes 26 of fixing screws are formed at predetermined intervals. The guide holes 26 ... Are formed in a mortar shape at the top according to the head of the screw. Also,
A square packing 27 is attached to the upper surface of the joining portion 16 at a position slightly away from the guide holes 26. Packing 27
Is slightly larger than the variable dimensions of the third divided pan 9 and the fourth divided pan 10.

FIG. 5 is a perspective view of the joint portion of the third divided pan, and a band-like packing (second packing according to the claims) 28 is attached to the lower surface of the joint portion 18 of the third divided pan 9. The packing (second packing according to the claims) 28 includes the joint portion 18
Along the end portion 18a on the side of the second divided pan 8 is provided from the end portion 9a on the side of the fourth divided pan of the third divided bread 9 to the rising portion 5 (see also FIG. 2).

The end portion 18a of the joint portion 18 is obliquely cut from the end portion 9a of the third divided pan 9 to a length of about 30 to 40 cm corresponding to a variable dimension to form a slope portion 18b. The packing (the second packing in the claims) 2 is provided over the length of about 30 to 40 cm corresponding to the sloped portion 18b.
8 from the end 18a of the joint 18 to the end 28a
It is provided so as to project by about mm.

Further, along the end portion 18a of the joint portion 18,
Guide holes 29 for fixing screws that penetrate from the upper surface to the lower surface.
Drilling. The guide holes 29 ... Are formed in a mortar shape at the upper part according to the head of the screw.

FIG. 6 is a cross-sectional view of the joint portion of the fourth divided pan, and the end portion 10a of the fourth divided pan 10 on the second divided pan 8 side.
Along the line (see FIG. 2), the packing 30 is provided from the joint portion 19 to the rising portion 5 (see also FIG. 2). Also, the joint 1
On the lower surface of 9, the strip-shaped packing 31 is provided along the end 19a of the joint 19 from the end on the side of the third divided pan 9 to the rising portion 5.
(See Fig. 2).

Along the edge portion 10a of the fourth split pan 10 on the side of the third split pan 9 and along the end portion 19a of the joint portion 19 (see also FIG. 2), it penetrates from the upper surface to the lower surface for fixing. The guide holes 33 ... Of the screw holes 32 are formed. Guide hole 33 ...
Has a mortar-shaped upper part according to the head of the screw.
All the packings are formed of a hydrophobic urethane sheet-like foam that is foamed 19 times. The thickness is about 10 mm, and it can be compressed to about 1 mm when tightened and fixed.

Next, the procedure for assembling the split floor pan will be described with reference to FIGS. In FIG. 7, the bathtub installation section 3B of the second divided pan 8 is placed on the overlapping section 11 of the first divided pan 7, and the joining section 16 of the second divided pan 8 is placed on the joining section 13 of the first dividing pan 7. , The first divided pan 7 and the second divided pan 8
Overlap. At this time, according to the scene, the first divided pan 7
By changing the overlapping position of the second split pan 8 and the size of the split floor pan 1 in the left-right direction in the drawing. Second after size adjustment
Screws 25 in the guide holes 26 of the split pan 8 (see FIG. 11)
Is inserted and joined integrally with the first divided pan 7.

In FIG. 8, the washing area 2A of the third divided pan 9 is placed on the joined portion 13 of the first divided pan 7 and the joined portion 16 of the second divided pan 8 which are overlapped, and the first divided pan 7 and The second divided pan 8 and the third divided pan 9 are overlapped. After overlapping, screws are inserted into the guide holes 29 of the third divided pan 9 to integrally join with the first divided pan 7 and the second divided pan 8.

In FIG. 9, the joint portion 16 of the second divided pan 8 and the joint portion 18 of the third divided pan 9 and the washing place 2A, which are superposed on the first divided pan 7, and the fourth divided pan 1 of the fourth sheet
The end faces of 0 are overlapped. Finally, screws are inserted into the guide holes 32 of the fourth divided pan 10 to remove the first divided pan 7 and the second divided pan 7.
The divided pan 8 and the third divided pan 9 are integrally joined.

The operation of the split floor pan of the present invention having the above-mentioned structure will be described below. FIG. 10 is a cross-sectional view taken along the line 10-10 of FIG. 1, and (a) shows the first packing 24 on the back surface at the joint portion 13 of the first dividing pan 7 having the third packing 23 on the front surface. The joined portion 16 of the attached second split pan 8 is overlaid, and the joined portion 16 of the second split pan 8 is overlaid with the third split pan 9 with the second packing 28 attached to the back surface. The end portion 16a of the joint portion 16 of the second divided pan 8 in the middle in the height direction
Is a pointed shape, and the protruding length of the first packing 24 from the end portion 16 a of the joint portion 16 is defined by the second dividing pan 8
A little longer than the thickness.

FIG. 10B is a sectional view showing a state in which the first, second and third packings are similarly compressed and the first, second and third divided pans are joined together. When the second divided pan 8 and the third divided pan 9 are joined by screws (not shown),
The first packing 24, the second packing 28, and the third packing 23 are sufficiently compressed, and the first packing 24 sufficiently wraps around the end 16a side of the joint portion 16 of the second split pan 8,
Since the end portion 16a of the joint portion 16 of the second split pan closely contacts with the end portion 16a of the second split pan 8, there is no gap between the first packing 24 and the end portion 16a of the joint portion 16 of the second pan portion 8, and water leakage does not occur. Water is good because there is no danger of it occurring.

A first packing 24 is provided between the first divided pan 7, the second divided pan 8 and the third divided pan 9 for stopping water.
Since the second packing 28 and the third packing 23 only need to be interposed and there is no need to fill the caulking material, the work is easy and the workability is good.

In addition, the second divided pan 8 is not provided, and the second layer of the first divided pan 7 and the third divided pan 9 (the right side portion of the end portion 16a of the joining portion 16 in FIG. 10B) is the second portion. Packing 28
Is sufficiently compressed and water can be reliably stopped.

Since the packing is made of a hydrophobic urethane sheet-like foam having a 19-fold expansion (made of a soft material), the second
In the direction along the end 16a of the joint 16 of the split pan 8,
Even if there is a step difference in the thickness of the packing between the portion with the third packing 23 and the portion without the third packing 23, when the first divided pan 7 and the second divided pan 8 are joined together, there is no difference in the step between the second divided pan 8 and the second divided pan 8. It is possible to absorb, and there is no second split pan 8, and the second packing 28 of the two-layer portion of the first split pan 7 and the third split pan 9 can be sufficiently compressed (the expansion ratio is small (hard. ), The surface positions of the bathtub installation portions 3A and 3B do not become the same when they are joined).

FIG. 11 is a sectional view taken along the line 11-11 of FIG. 1, showing the first packing 2 of the overlapping portion 11 of the first dividing pan 7.
On the lower surface (rear surface) of the portion 11a where 4 overlaps, a metal plate (stainless steel plate) such as a SUS plate having an area substantially the same as this portion 11a
35 is laid, and a foam plate 36 having the same width as the metal plate 35 and having a thickness through which screws do not penetrate is provided on the lower surface of the metal plate 35.

The first divided pan 7 on the left and right of the foam plate 36
The wooden reinforcing trees 37, 37 are provided on the lower surface of the bathtub installation portion 3A, and the legs 38, 38 are fixed to the reinforcing trees 37, 37. The foam plate 36 is fixed to the legs 38, 38 with a glass mat lining 39 from the lower surface. Foam plate 36 and reinforcing wood 37,
37, legs 38, 38, and glass mat lining 39
Adhesive resins 40, 40 are filled in the gap between and to adhere.

On the end face of the overlapping portion 11 of the overlapping portion 11 of the first divided pan 7 provided as described above where the first packing 24 overlaps, the second divided pan 8 is interposed via the first packing 24.
The end faces of the two are overlapped, and the screw 25 having a length that does not penetrate the foam plate 36 is screwed into the metal plate 35 and the foam plate 36 from the screw guide hole 26 to form the first divided pan 7 and the second divided pan 8. Fix it. The first divided pan 7, the third divided pan 9, the second divided pan 8, and the third divided pan 9 and the fourth divided pan 10 are joined in the same manner.

Since the first divided pan 7 and the second divided pan 8 are joined as described above, it is possible to secure the waterproofness by simply screwing the screw 25 on the second divided pan 8. The construction is easy and the workability is good.

FIG. 12 is a sectional view of an essential part of a split pan according to another embodiment. FIG. 12A shows a state in which the first, second and third split pans are stacked with the first and second packings interposed therebetween. Cross section of
(B) is a sectional view of a state in which the first, second and third packings are similarly compressed and the first, second, and third divided pans are joined.

In this alternative embodiment, as shown in (a), the second packing 45 provided on the lower surface of the joint portion 18 of the third split pan 9 is replaced by the first packing 2 provided on the lower surface of the second split pan 8.
The thickness is about twice the thickness of No. 4. The end portion 16b of the joint portion 16 of the second divided pan 8 is, for example, a pointed shape that is cut upward by 45 °.

The thickness of the second packing 45 is set to the first packing 2
By making the thickness approximately twice as large as that of the first packing 24, the first packing 24,
When the second packing 45 is compressed by 50% or more, the first
The end portion 1 of the joint portion 16 having a pointed end portion of the packing 24
The first packing 24 follows the shape of the second packing 45 that has been wrapped around the 6b side to come into close contact therewith, and further wrapped around to be deformed,
Since it closely contacts the first packing 24 and the first divided pan 7,
There is no risk of water leakage as the water stops completely.

In order to stop water, the first split pan 7 and the second split pan
The packing is only required to be interposed between the divided pan 8 and the third divided pan 9, and since it is not necessary to fill the caulking material, the work is easy and the workability is good.

[0051]

The present invention has the following effects due to the above configuration. According to claim 1 of the present invention, at least the first floor pan is provided.
As a combination of the second and third divided breads, the end surface of the second divided bread is overlaid on the end surface of the first divided bread via the first packing, and the second packing is placed on the end surface of the second divided bread. It is characterized in that an end face of the third divided pan is overlapped with the divided floor pan to form a three-layer structure joint portion, and the end of the second divided pan in the middle in the height direction has a pointed shape.

Since the end portion of the second divided pan has a pointed shape, when the first, second and third divided pans are joined with screws,
The compressed first packing wraps around the end portion side of the joint portion of the second split pan and follows the shape of the end portion perfectly, so that the waterproofness is good. Moreover, since packing is only required between the first, second, and third divided pans to stop the water, and the work of filling the caulking material is not required, the construction is labor-saving, Good workability.

In the second aspect, the first packing is extended by a predetermined length from the end portion of the second divided pan. When the first, second, and third divided pans are joined with screws, the sufficiently compressed first packing wraps around the end of the second divided pan sufficiently to fit the end of the second divided pan. Since it is in close contact with the first packing and no gap is formed between the first packing and the end portion of the second split pan, water leakage does not occur, and the waterproofness is good.

In the third aspect, the third packing is interposed between the first packing and the first divided pan. 1st divided bread and 3rd
Even in the two-layer portion with the packing, the second packing is sufficiently compressed and water can be surely stopped.

According to a fourth aspect of the present invention, in a divided floor pan in which a second divided pan is superposed on and joined to an end surface of the first divided pan via a packing, a metal plate having a predetermined area is provided on the lower surface of the end surface of the first divided pan. Laying, laying a foam plate of a predetermined thickness on the lower surface of the metal plate, and screwing a screw having a length that does not penetrate the foam plate from above into the metal plate and the foam plate
Fixed the dividing pan. When joining the first split pan and the second split pan by stacking them together, it is possible to secure water resistance simply by screwing the screws from above the second split pan, and it is necessary to fill all the gaps with caulking material. Since it does not have any work, it does not take time and effort and is easy to install.

In the fifth aspect, the width of the metal plate and the foam plate is set to a length dimension corresponding to a variable range of overlapping of the divided pans. Even if the overlapping position of the split pans is changed according to the site, water resistance can be secured simply by screwing on the second split pan, and the workability is good.

[Brief description of drawings]

FIG. 1 is a perspective view of a split floor pan of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view of a main part of a joint portion of a first split pan.

FIG. 4 is a cross-sectional view of a main portion of a joint portion of a second split pan.

FIG. 5 is a perspective view of a joint portion of a third divided pan.

FIG. 6 is a sectional view of a joint portion of a fourth divided pan.

FIG. 7 is a view for explaining the procedure for assembling the split floor pan of the present invention.

FIG. 8 is a view for explaining the procedure for assembling the split floor pan of the present invention.

FIG. 9 is a view for explaining the procedure for assembling the split floor pan of the present invention.

10 is a cross-sectional view taken along line 10-10 of FIG.

FIG. 11 is a sectional view taken along line 11-11 of FIG. 1;

FIG. 12 is a sectional view of an essential part of a split pan of another embodiment.

FIG. 13 is a cross-sectional view of a main part of a joint portion of divided floor pans stacked in three layers.

FIG. 14 is a cross-sectional view of a main part of a state where the joints of the split floor pans stacked in three layers are fixed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Divided floor pan, 2 ... Washing room, 3 ... Bathtub installation part, 4 ... Wall part, 5 ... Rising part, 7 ... 1st divided pan, 8 ... 2nd divided pan, 9 ... 3rd divided pan, 10 ... Quadrant bread, 11,1
7 ... Overlapping part, 12, 15 ... Wall part, 13, 16, 1
8, 19 ... Joining part, 14 ... Drainage port, 20 ... Recessed part, 2
3, 24, 27 ... Packing, 35 ... Metal plate, 36 ... Foam plate, 45 ... Second packing.

Claims (5)

[Claims] 1. The floor pan is a combination of at least first, second and third divided pans, and the end surface of the second divided pan is superposed on the end surface of the first divided pan via a first packing. A split floor pan is provided on the end surface of the second split pan with the end face of the third split pan over the second packing to form a three-layer structure joint, and the end of the second split pan in the middle in the height direction is provided. The joint structure of the split floor pan, which has a pointed shape. 2. The joint structure of a split floor pan according to claim 1, wherein the first packing is extended from the end of the second split pan by a predetermined length. 3. The joint structure of a split floor pan according to claim 1 or 2, wherein a third packing is interposed between the first packing and the first split pan. 4. A split floor pan in which a second split pan is overlapped and joined to the end face of the first split pan via a packing, and a metal plate having a predetermined area is laid on the lower surface of the end face of the first split pan. , A foam plate having a predetermined thickness is laid on the lower surface of the metal plate, and a screw having a length that does not penetrate the foam plate is attached to the metal plate from above,
And a joint structure of a split floor pan, wherein the first split pan and the second split pan are fixed by being screwed into a foam plate. 5. The joint structure of a split floor pan according to claim 4, wherein the width of the metal plate and the foam plate is a length dimension corresponding to a variable range of overlapping of the split pans. .