JP6987658B2 - Waterproof pan - Google Patents

Description

The present invention relates to a waterproof pan.

In Patent Document 1, the support frame on which the folding door frame is placed is screwed and fixed to the end face of the waterproof pan. Further, this waterproof pan is provided with a sealing member between the support frame and the waterproof pan. As a result, the waterproof pan can prevent water from leaking through between the support frame and the waterproof pan.

Japanese Patent No. 3949974

However, in Patent Document 1, a support frame is attached so as to extend horizontally from the end face of the waterproof pan, and the waterproof pan and the support frame are arranged and connected horizontally side by side. For this reason, for example, when the user rides on the support frame, the tip of the support frame bends downward, and as a result, the contact surfaces between the waterproof pan and the support frame are separated from each other to create a gap. It can occur. In this case, there may be a gap between the support frame and the seal member, or between the waterproof pan and the seal member, and water may leak through this gap.

The present invention has been made in view of the above-mentioned conventional circumstances, and it is an object to be solved to provide a waterproof pan capable of satisfactorily suppressing water leakage.

The waterproof pan of the present invention is
A waterproof pan body having a receiving side concave portion formed inside the outer edge or an engaging receiving portion provided with a receiving side convex portion formed inside the outer edge.
Engage with the outer edge portion while sandwiching the first engaging portion having the engaging convex portion or engaging concave portion that engages with the receiving side concave portion or the receiving side convex portion, and the outer edge portion of the waterproof pan body. It is characterized by having a second engaging portion and an attachment attached to the edge portion of the waterproof pan body.

In the waterproof pan of the present invention, the engaging convex portion of the attachment engages with the receiving side concave portion, or the engaging concave portion of the attachment engages with the receiving side convex portion. That is, in this waterproof pan, the waterproof pan body and the attachment are engaged with each other by the concave portions and the convex portions being fitted to each other. Therefore, this waterproof pan has good water stopping property because water does not easily flow. Further, no screw is used to fix the attachment to the waterproof pan body, and an insertion hole for inserting the screw is not required, so that the water blocking property is good. Further, even if it is fixed with a screw, since the engagement and the screw are used together, the attachment and the waterproof pan main body can be fixed more firmly, and the water stopping property is good.

Therefore, the waterproof pan of the present invention can satisfactorily suppress water leakage.

It is a top view of the bathroom equipped with the waterproof pan of Example 1. (A) is a cross-sectional view taken along the line AA in FIG. 1, and (B) is a cross-sectional view showing a state before cutting out a part of the outer peripheral side vertical wall in (A). It is sectional drawing of the position corresponding to FIG. It is sectional drawing of the position corresponding to FIG. 2A of the waterproof pan of Example 1, and shows the process of attaching an attachment to the waterproof pan main body placed on the floor frame. It is sectional drawing of the position corresponding to FIG. 2A in the bathroom provided with the waterproof pan of Example 2. FIG. It is sectional drawing of the position corresponding to FIG. 2A of the waterproof pan of Example 2, and shows the process of attaching an attachment to the waterproof pan main body placed on the floor frame. It is sectional drawing of the position corresponding to FIG. 2A in the bathroom provided with the waterproof pan of Example 3. FIG.

A preferred embodiment of the present invention will be described.

At least one of the receiving-side engaging surface of the receiving-side concave portion of the waterproof pan of the present invention and the engaging portion-side engaging surface of the engaging convex portion can be inclined toward the upper side and away from the waterproof pan main body in the installed state. In this case, since the receiving side engaging surface and the engaging portion side engaging surface function as a calling surface when the attachment is attached to the waterproof pan body, the attachment can be easily attached to the waterproof pan body.

At least one of the receiving side engaging surface of the receiving side convex portion of the waterproof pan of the present invention and the engaging portion side engaging surface of the engaging concave portion can be inclined toward the upper side and toward the waterproof pan main body in the installed state. .. In this case, since the receiving side engaging surface and the engaging portion side engaging surface function as a calling surface when the attachment is attached to the waterproof pan body, the attachment can be easily attached to the waterproof pan body.

The engaging receiving portion of the waterproof pan of the present invention faces the receiving side engaging surface and has a first water stop surface extending in the vertical direction in the installed state, and the engaging convex portion is the engaging portion side engaging surface. It has a second water stop surface extending in the vertical direction in the installation state, and the first water stop surface and the second water stop surface may come into contact with each other in the installation state. In this case, when the first engaging portion is fitted into the engaging receiving portion, the first waterproof surface and the second waterproof surface with respect to the attachment due to the inclination of the receiving side engaging surface or the engaging portion side engaging surface. A force is applied in the direction in which the two are in contact with each other and pressed against each other, and the attachment is attached to the waterproof pan body. As a result, it is possible to prevent water from leaking from the first water stop surface and the second water stop surface that are in contact with each other.

The engaging receiving portion of the waterproof pan of the present invention is on the opposite side of the receiving side engaging surface and has a third water stop surface extending in the vertical direction in the installed state, and the engaging recess is engaged on the engaging portion side. It has a fourth water stop surface that faces the mating surface and extends vertically in the installed state, and the third water stop surface and the fourth water stop surface may come into contact with each other in the installed state. In this case, when the first engaging portion is fitted into the engaging receiving portion, the third waterproof surface and the fourth waterproof surface with respect to the attachment due to the inclination of the receiving side engaging surface or the engaging portion side engaging surface. A force is applied in the direction in which the two are in contact with each other and pressed against each other, and the attachment is attached to the waterproof pan body. As a result, it is possible to prevent water from leaking from the third water stop surface and the fourth water stop surface that are in contact with each other.

The attachment of the waterproof pan of the present invention is formed with a first screw hole penetrating in the vertical direction in the installed state, and the waterproof pan main body is formed with a second screw hole recessed by opening upward in the installed state. , May include a screw that is inserted into the first screw hole and screwed into the second screw hole. In this case, since the second screw hole does not penetrate, water does not leak through the second screw hole. Then, the attachment can be securely fixed to the waterproof pan body by the screw inserted into the first screw hole and screwed into the second screw hole.

Next, Examples 1 to 3 embodying the waterproof pan of the present invention will be described with reference to the drawings.

<Example 1>
The waterproof pan 20 of the first embodiment is provided in the bathroom 10 of a condominium or a detached house, and functions as a waterproof floor for a washing place. The waterproof pan 20 is adjacent to the bathtub 21 of the bathroom 10 (see FIG. 1). The waterproof pan 20 is placed on a metal floor frame 50 provided in advance at the installation location where the bathroom 10 is installed (see FIGS. 2A and 2B). Hereinafter, the state in which the waterproof pan 20 is placed on the metal floor frame 50 of the installation place where the bathroom 10 is installed is referred to as an installation state.

As shown in FIGS. It is equipped with. The lower surface of the outer edge portion 31 of the waterproof pan body 30 abuts on the upper surface of the floor frame 50 and is fixed to the floor frame 50.

Further, on the lower surface (back surface) of the waterproof pan body 30, a rib 32 that hangs down in a direction orthogonal to the waterproof pan body 30 is provided as a means for increasing the rigidity against a load acting on the upper surface of the waterproof pan body 30. There is.

As shown in FIGS. 2A and 2B, the outer edge portion 31 of the waterproof pan main body 30 is formed with an engagement receiving portion 40 having a cross section opened on the upper surface and formed in a substantially U shape. .. The engagement receiving portion 40 is located on the central portion side (left side in FIGS. 2A and 2B) of the waterproof pan main body 30 from the lower end of the main body side standing wall 40A and from the central portion of the waterproof pan main body 30. It is formed of a bottom wall 40B that expands in a distant direction and an outer peripheral side standing wall 40C that rises from the tip of the bottom wall 40B.
The surface of the main body side vertical wall 40A facing the outside (right side in FIGS. 2A and 2B) of the waterproof pan main body 30 is the first water stop surface 40F. On the main body side vertical wall 40A side of the bottom wall 40B, a receiving side recess 40E opened upward in the installed state is provided. The receiving side recess 40E is formed inside the outer edge of the waterproof pan body 30. The side of the receiving side recess 40E away from the main body side standing wall 40A is formed with a receiving side engaging surface 40D inclined so as to face upward and approach the outer peripheral side standing wall 40C (that is, in a direction away from the waterproof pan main body 30). .. That is, the first water stop surface 40F faces the receiving side engaging surface 40D and extends in the vertical direction in the installed state.
The bottom wall 40B is provided with a downwardly projecting portion 40G, and the lower surface of the projecting portion 40G is in contact with the upper surface of the floor frame 50.

The place where the door 75, which will be described later, is attached to the outer edge portion 31 of the waterproof pan main body 30 differs depending on each site. The door 75 is supported by a door frame 70 described later. The attachment 35 is used when the door frame 70 is attached to a desired position of the outer edge portion 31 of the waterproof pan main body 30. In order to attach the door frame 70 to the desired position of the outer edge portion 31 of the waterproof pan main body 30, a part 40H of the outer peripheral side standing wall 40C of the engagement receiving portion 40 of the waterproof pan main body 30 (see FIG. 2B) is used. A notch is made, and an attachment 35 is attached to this portion (see FIGS. 2 (A) and 2 (B)).
As shown in FIGS. 2A and 3, the attachment 35 is attached to a portion 40H of the outer peripheral side vertical wall 40C of the engagement receiving portion 40 of the waterproof pan main body 30 in a pre-cut portion. The attachment 35 is formed so as to extend in the front-back direction in FIG. The attachment 35 has a first engaging portion 36 and a second engaging portion 37.

The first engaging portion 36 includes a first engaging portion main body 36A and a connecting portion 36B. The first engaging portion main body 36A extends in the vertical direction along the first water stop surface 40F of the main body side standing wall 40A of the waterproof pan main body 30, and the lower end portion is fitted in the receiving side recess 40E. The lower end of the first engaging portion main body 36A fitted in the receiving side concave portion 40E is an engaging convex portion 36C, and the engaging convex portion 36C is engaged with the receiving side engaging surface 40D of the receiving side concave portion 40E. A portion-side engaging surface 36D is formed. That is, the first engaging portion 36 includes an engaging convex portion 36C that engages with the receiving side concave portion 40E. Further, the receiving side engaging surface 40D of the receiving side concave portion 40E and the engaging portion side engaging surface 36D of the engaging convex portion 36C are inclined toward the upper side and away from the waterproof pan main body 30 in the installed state. A first mounting surface 36E extending in the horizontal direction is formed at the upper end of the first engaging portion main body 36A. The vertical position of the first mounting surface 36E is substantially the same as the upper end of the main body side standing wall 40A. The surface of the first engaging portion main body 36A facing the first water stop surface 40F of the main body side standing wall 40A is the second water stop surface 36F. That is, the second water stop surface 36F is on the opposite side of the engagement surface 36D on the engagement portion side, and extends in the vertical direction in the installed state. Further, in the installed state, the first water stop surface 40F and the second water stop surface 36F are in contact with each other. A water stop packing (not shown) may be interposed between the first water stop surface 40F and the second water stop surface 36F. In this case, the first water stop surface 40F and the second water stop surface 36F are in a state of indirectly contacting each other via the water stop packing.
The connecting portion 36B is formed so as to extend in the horizontal direction along the upper side of the bottom wall 40B of the engaging receiving portion 40, one end thereof is connected to the upper and lower intermediate portions of the first engaging portion main body 36A, and the other end is described later. It is connected to the upper and lower intermediate portions of the second engaging portion 37. A connecting portion plane 36G extending in the horizontal direction is formed on the upper side of the connecting portion 36B. A recessed portion 36H is formed by being recessed upward on the lower side of the connecting portion 36B on the second engaging portion 37 side. In the recessed portion 36H, the outer peripheral side standing wall 40C in a state after a part 40H (see FIG. 2B) of the outer peripheral side standing wall 40C is cut off is arranged.

The second engaging portion 37 extends in the vertical direction so as to cover the outside of the engaging receiving portion 40 (outside of the waterproof pan main body 30). At the lower end of the second engaging portion 37, a claw portion 37A protruding in a direction approaching the first engaging portion main body 36A is provided. That is, the second engaging portion 37 is engaged with the connecting portion 36B with the outer edge portion 31 of the waterproof pan main body 30 sandwiched in the vertical direction. The lower surface of the claw portion 37A is in contact with the upper surface of the floor frame 50. A second mounting surface 37B extending in the horizontal direction is formed at the upper end of the second engaging portion 37. The vertical position of the second mounting surface 37B is slightly above the first mounting surface 36E. In this way, the attachment 35 is attached to the edge of the waterproof pan body 30.

As shown in FIG. 2A, the door frame 70 is placed on the attachment 35 arranged on the outer edge portion 31 of the waterproof pan main body 30. The door frame 70 is formed so as to extend in the front-back direction in FIG. 2A. The door frame 70 has a door mounting portion 71, a changing room connecting portion 72, and an intermediate portion 73.
The door mounting portion 71 is provided with a door mounting portion main body 71A, a first contact portion 71B, a second contact portion 71C, and a third contact portion 71D. The door mounting portion main body 71A extends in the horizontal direction. The first contact portion 71B hangs down from the lower surface of the door mounting portion main body 71A, and the lower end portion is bent in a direction away from the central portion of the waterproof pan main body 30. The lower end of the first contact portion 71B is in contact with the upper surface of the packing P arranged on the upper surface of the first mounting surface 36E of the attachment 35.
The second contact portion 71C hangs down from the lower surface of the door mounting portion main body 71A, and the lower end is in contact with the upper surface of the connecting portion flat surface 36G of the attachment 35.
The third contact portion 71D hangs down from the lower surface of the door mounting portion main body 71A, and the lower end is in contact with the upper surface of the second mounting surface 37B of the attachment 35.
Further, a seal member W is filled between the door mounting portion main body 71A and the main body side standing wall 40A of the waterproof pan main body 30.

The changing room connecting portion 72 is formed so as to extend in the horizontal direction, and is located outside the outer periphery of the waterproof pan main body 30. A changing room side contact portion 72A hangs down from the end of the changing room connecting portion 72 on the side away from the door mounting portion main body 71A. Further, a plurality of through holes 72B provided through the changing room connecting portion 72 in the plate thickness direction are formed side by side in the front-back direction in FIG. 2A. The lower end of the changing room side contact portion 72A is brought into contact with the upper surface of the changing room floor F of the changing room connecting portion 72, and is screwed to the floor F of the changing room by the screw S1 inserted through the through hole 72B.
The intermediate portion 73 is located between the door mounting portion 71 and the changing room connecting portion 72, and is located outside the outer periphery of the waterproof pan main body 30. The intermediate portion 73 includes an intermediate portion main body 73A having a frame having a rectangular outer shape, and a pair of protruding portions 73B protruding upward from the upper surface of the intermediate portion main body 73A. One of the protrusions 73B protrudes upward from the vicinity where the intermediate portion main body 73A and the door mounting portion main body 71A are connected. The other protrusion 73B has a predetermined distance from the one protrusion 73B, and is farther from the door mounting portion 71 than the one protrusion 73B. The tip of the other protrusion 73B is connected to the changing room connecting portion 72 on the side closer to the door mounting portion 71.

Further, a pivot 90 is connected to the upper surface of the door mounting portion main body 71A. The pivot 90 includes a pivot main body 90A that forms a columnar shape and extends in the vertical direction, and a base 90B to which the base end portion of the pivot main body 90A is connected and connected to the upper surface of the door mounting portion main body 71A.
Then, the door 75 is rotatably attached to the door frame 70 about the central axis of the pivot body 90A. Further, a door stop member is attached between the pair of protrusions 73B of the intermediate portion 73 (not shown).

Next, a method of attaching the attachment 35 to the waterproof pan main body 30 will be described with reference to FIGS. 4A to 4C.

First, the waterproof pan body 30 is placed on the floor frame 50 (see FIG. 4A). Then, the attachment 35 is attached to a portion 40H (see FIG. 2B) of the outer peripheral side standing wall 40C of the waterproof pan main body 30 which is cut out in advance. At this time, first, the second engaging portion 37 of the attachment 35 is arranged outside the engaging receiving portion 40, and the claw portion 37A is arranged below the engaging receiving portion 40 (see FIG. 4B). .. At this time, the engaging convex portion 36C of the first engaging portion main body 36A is located above the receiving side concave portion 40E. Then, with the second engaging portion 37 arranged outside the engaging receiving portion 40 and the claw portion 37A of the second engaging portion 37 arranged below the engaging receiving portion 40, the first engaging portion The engaging convex portion 36C of the main body 36A is fitted into the receiving side concave portion 40E (see FIG. 4C). At this time, the engaging portion side engaging surface 36D of the engaging convex portion 36C of the first engaging portion main body 36A abuts on the receiving side engaging surface 40D of the receiving side concave portion 40E, so that the waterproof pan main body 30 is attached to the attachment 35. A force is applied in the direction toward the center of the water (direction in which the first water stop surface 40F and the second water stop surface 36F are pressed against each other). As a result, the first water stop surface 40F of the main body side vertical wall 40A of the receiving side recess 40E and the second water stop surface 36F of the attachment 35 abut against each other so as to press against each other. As a result, the first water stop surface 40F and the second water stop surface 36F come into close contact with each other.

In this way, in the waterproof pan 20, the engaging convex portion 36C of the attachment 35 engages with the receiving side concave portion 40E opened above the waterproof pan main body 30. That is, the waterproof pan main body 30 and the attachment 35 are vertically overlapped with each other, and the receiving side concave portion 40E and the engaging convex portion 36C are fitted and engaged with each other. Therefore, the waterproof pan 20 has good water stopping property because water does not easily flow in the vertical direction. Further, no screw is used to fix the attachment 35 to the waterproof pan main body 30, and an insertion hole for inserting the screw is not required, so that the water blocking property is good. Further, even if it is fixed with a screw, since the engagement and the screw are used together, the attachment 35 and the waterproof pan main body 30 can be fixed more firmly, and the water stopping property is good. ..

Therefore, the waterproof pan 20 of the present invention can satisfactorily suppress water leakage.

Further, the receiving side engaging surface 40D of the receiving side concave portion 40E of the waterproof pan 20 and the engaging portion side engaging surface 36D of the engaging convex portion 36C are inclined toward the upper side and away from the waterproof pan main body 30 in the installed state. ing. Therefore, the receiving side engaging surface 40D and the engaging portion side engaging surface 36D function as a calling surface when the attachment 35 is attached to the waterproof pan main body 30, so that the attachment 35 can be easily attached to the waterproof pan main body 30. Can be done.

Further, the engaging receiving portion 40 of the waterproof pan 20 faces the receiving side engaging surface 40D and has a first water blocking surface 40F extending in the vertical direction in the installed state, and the engaging convex portion 36C is an engaging portion. On the opposite side of the side engaging surface 36D, it has a second water stop surface 36F extending in the vertical direction in the installed state, and the first water stop surface 40F and the second water stop surface 36F are in contact with each other in the installed state. .. Therefore, when the first engaging portion main body 36A is fitted into the engaging receiving portion 40, the first water stop surface with respect to the attachment 35 due to the inclination of the receiving side engaging surface 40D and the engaging portion side engaging surface 36D. A force is applied in the direction in which the 40F and the second water stop surface 36F are in contact with each other and pressed against each other, and the attachment 35 is attached to the waterproof pan main body 30. As a result, it is possible to prevent water from leaking from the first water stop surface 40F and the second water stop surface 36F that are in contact with each other.

<Example 2>
As shown in FIG. 5, the waterproof pan 120 of the second embodiment is characterized in that the waterproof pan main body 130 is provided with a receiving-side convex portion 140E, the attachment 135 is provided with an engaging recess 136C, and the like. Different from 1. Other configurations are the same as those in the first embodiment, the same configurations are designated by the same reference numerals, and detailed description thereof will be omitted.

The outer edge 131 of the waterproof pan main body 130 is provided with a main body side standing wall 40A hanging from the outer edge of the waterproof pan main body 130 and a bottom wall 140B extending from the lower end of the main body side standing wall 40A in a direction away from the central portion of the waterproof pan main body 130. Has been done. The main body side vertical wall 40A and the bottom wall 140B are engagement receiving portions 140.
On the upper side of the bottom wall 140B, a receiving-side convex portion 140E is provided with a predetermined dimension between the bottom wall 140B and the main body-side vertical wall 40A and projecting upward. That is, the engaging receiving portion 140 is provided with a receiving side convex portion 140E projecting upward. Further, the receiving side convex portion 140E is formed inside the outer edge of the waterproof pan main body 130. The side of the receiving side convex portion 140E facing the main body side vertical wall 40A is the third water stop surface 140F. Receiving side engaging surface 140D inclined so as to face upward to the third water stop surface 140F of the receiving side convex portion 140E and approach the third water stopping surface 140F (that is, toward the waterproof pan body 130). Is formed. The third water stop surface 140F is on the opposite side of the receiving side engaging surface 140D and extends in the vertical direction in the installed state.

The first engaging portion main body 136A of the first engaging portion 136 of the attachment 135 extends in the vertical direction along the main body side vertical wall 40A. The surface of the first engaging portion main body 136A that faces the third water stop surface 140F and comes into contact with the third water stop surface 140F is the fourth water stop surface 136F. That is, in the installed state, the third water stop surface 140F and the fourth water stop surface 136F are in contact with each other. Further, the fourth water stop surface 136F that abuts on the third water stop surface 140F extends in the vertical direction in the installed state.
The connecting portion 136B of the first engaging portion 136 is formed so as to extend in the horizontal direction. An engaging recess 136C is formed by being recessed upward on the lower side of the connecting portion 136B on the first engaging portion main body 136A side. The surface of the engaging recess 136C facing and abutting the receiving side engaging surface 140D is the engaging portion side engaging surface 136D. That is, the receiving side engaging surface 140D of the receiving side convex portion 140E and the engaging portion side engaging surface 136D of the engaging concave portion 136C are inclined toward the upper side and closer to the waterproof pan main body 130 in the installed state. Further, the fourth water stop surface 136F faces the engagement surface 136D on the engagement portion side. Further, the first engaging portion 136 is provided with an engaging concave portion 136C that engages with the receiving side convex portion 140E.

When attaching the attachment 135 to the waterproof pan body 130, first, the waterproof pan body 130 is placed on the floor frame 50 (see FIG. 6A). Next, the claw portion 37A of the second engaging portion 37 of the attachment 135 is arranged below the bottom wall 140B (see FIG. 6B). At this time, the engaging recess 136C of the first engaging portion main body 136A is located above the receiving side convex portion 140E. Then, in a state where the claw portion 37A of the second engaging portion 37 of the attachment 135 is arranged under the bottom wall 140B, the engaging concave portion 136C of the first engaging portion main body 136A is fitted into the receiving side convex portion 140E. See FIG. 6 (C). At this time, the engaging portion side engaging surface 136D of the engaging portion 136C of the first engaging portion main body 136A abuts on the receiving side engaging surface 140D of the receiving side convex portion 140E, so that the waterproof pan main body 130 is attached to the attachment 135. A force is applied in a direction away from the central portion of the above (direction in which the third water stop surface 140F and the fourth water stop surface 136F are pressed against each other). As a result, the third water stop surface 140F of the receiving side convex portion 140E and the fourth water stop surface 136F of the attachment 135 are brought into contact with each other so as to be pressed against each other. Therefore, the third water stop surface 140F and the fourth water stop surface 136F are in close contact with each other.

In this way, in the waterproof pan 120, the engaging recess 136C of the attachment 135 engages with the receiving side convex portion 140E protruding upward from the waterproof pan main body 130. That is, the waterproof pan main body 130 and the attachment 135 are vertically overlapped with each other, and the receiving side convex portion 140E and the engaging concave portion 136C are fitted and engaged with each other. Therefore, it is difficult for water to flow in the vertical direction and the water blocking property is good. Further, no screw is used to fix the attachment 135 to the waterproof pan main body 130, and an insertion hole for inserting the screw is not required, so that the water blocking property is good. Further, even if it is fixed with a screw, since the engagement and the screw are used together, the attachment 135 and the waterproof pan main body 130 can be fixed more firmly, and the water stopping property is good. ..

Therefore, the waterproof pan 120 of the second embodiment can also satisfactorily suppress water leakage.

Further, the receiving side engaging surface 140D of the receiving side convex portion 140E of the waterproof pan 120 and the engaging portion side engaging surface 136D of the engaging concave portion 136C are directed upward and closer to the waterproof pan main body in the installed state. .. Therefore, the receiving side engaging surface 140D and the engaging portion side engaging surface 136D function as a calling surface when the attachment 135 is attached to the waterproof pan main body 130, so that the attachment 135 can be easily attached to the waterproof pan main body 130. Can be done.

Further, the engaging receiving portion 140 of the waterproof pan 120 is on the opposite side of the receiving side engaging surface 140D and has a third water blocking surface 140F extending in the vertical direction in the installed state, and the engaging recess 136C is engaged. It has a fourth water stop surface 136F that faces the engagement surface 136D on the joint side and extends in the vertical direction in the installed state, and the third water stop surface 140F and the fourth water stop surface 136F are in contact with each other in the installed state. Therefore, when the first engaging portion main body 136A is fitted into the engaging receiving portion 140, the third stop with respect to the attachment 135 due to the inclination of the receiving side engaging surface 140D and the engaging portion side engaging surface 136D. A force is applied in the direction in which the water surface 140F and the fourth water stop surface 136F are in contact with each other and pressed against each other, and the attachment 135 is attached to the waterproof pan body 130. As a result, it is possible to prevent water from leaking from the third water stop surface 140F and the fourth water stop surface 136F that are in contact with each other.

<Example 3>
As shown in FIG. 7, in the waterproof pan 220 of the third embodiment, the attachment 235 is formed with a first screw hole 235A penetrating in the vertical direction, and the waterproof pan main body 230 is opened upward and the second screw is recessed. It differs from Examples 1 and 2 in that the hole 230A is formed, the screw S2 is inserted into the first screw hole 235A, and the screw S2 is screwed into the second screw hole 230A. Other configurations are the same as those in the first embodiment, the same configurations are designated by the same reference numerals, and detailed description thereof will be omitted.

In the connecting portion 236B of the attachment 235 of the waterproof pan 220, a plurality of first screw holes 235A penetrating in the vertical direction are arranged side by side in the front-back direction in FIG. 7 in the installed state in which the attachment 235 is engaged with the waterproof pan main body 230. It is formed.
Further, in the waterproof pan main body 230, when the attachment 235 is engaged with the waterproof pan main body 230, the second screw hole is recessed by communicating with the first screw hole 235A of the attachment 235 and opening upward. A plurality of 230A are formed side by side in the front-back direction in FIG. 7.
Then, a plurality of screws S2 are inserted into the first screw holes 235A, and these screws S2 are screwed into the second screw holes 230A. In this way, the attachment 235 is screwed to the waterproof pan body 230.

In this way, in the waterproof pan 220, the engaging convex portion 36C of the attachment 235 engages with the receiving side concave portion 40E opened above the waterproof pan main body 230. That is, the waterproof pan main body 230 and the attachment 235 are vertically overlapped with each other, and the receiving side concave portion 40E and the engaging convex portion 36C are fitted and engaged with each other. Therefore, it is difficult for water to flow in the vertical direction and the water blocking property is good. Further, since the attachment 235 is fixed to the waterproof pan main body 230 with the screw S2 and the engagement and the screw S2 are used together, the attachment 235 and the waterproof pan main body 230 can be more firmly fixed and stopped. Good water-based.

Therefore, the waterproof pan 220 of the third embodiment can also satisfactorily suppress water leakage.

Further, the attachment 235 of the waterproof pan 220 is formed with a first screw hole 235A penetrating in the vertical direction in the installed state, and the waterproof pan main body 230 has a second screw hole 230A recessed by opening upward in the installed state. It is formed and includes a screw S2 that is inserted into the first screw hole 235A and screwed into the second screw hole 230A. Since the second screw hole 230A does not penetrate, water does not leak through the second screw hole 230A. Then, the attachment 235 can be securely fixed to the waterproof pan main body 230 by the screw S2 which is inserted into the first screw hole 235A and screwed into the second screw hole 230A.

The present invention is not limited to the examples described in the above description and drawings, and for example, the following examples are also included in the technical scope of the present invention.
(1) In Examples 1 and 2, the engagement surface on the engaging portion side and the engaging surface on the receiving side of the attachment and the waterproof pan body are inclined, but the engaging surface on the engaging portion side, One of the receiving side engaging surfaces may be inclined.
(2) In Examples 1 and 2, the attachment is attached after the waterproof pan body is placed on the floor frame, but the attachment may be attached to the waterproof pan body before the waterproof pan body is placed on the floor frame. ..

30, 130, 230 ... Waterproof pan body 31, 131 ... Outer edge 35, 135, 235 ... Attachment 36A, 136A ... First engaging part body (first engaging part)
36C ... Engagement convex portions 36D, 136D ... Engagement portion side engagement surface 36F ... Second water stop surface 37 ... Second engagement portion 40, 140 ... Engagement receiving portion 40D, 140D ... Receiving side engaging surface 40E ... Receiving Side recess 40F ... 1st water stop surface 136C ... Engagement recess 136F ... 4th water stop surface 140E ... Receiving side convex part 140F ... 3rd water stop surface 230A ... 2nd screw hole 235A ... 1st screw hole S2 ... Screw

Claims (6)

A waterproof pan body having a receiving side concave portion formed inside the outer edge or an engaging receiving portion provided with a receiving side convex portion formed inside the outer edge.
Engage with the outer edge portion while sandwiching the first engaging portion having the engaging convex portion or engaging concave portion that engages with the receiving side concave portion or the receiving side convex portion, and the outer edge portion of the waterproof pan body. With an attachment that has a second engaging portion and is attached to the edge of the waterproof pan body,
A waterproof pan that features. It is characterized in that at least one of the receiving side engaging surface of the receiving side concave portion and the engaging portion side engaging surface of the engaging convex portion is inclined toward the upper side and away from the waterproof pan main body in the installed state. The waterproof pan according to claim 1. It is characterized in that at least one of the receiving side engaging surface of the receiving side convex portion and the engaging portion side engaging surface of the engaging concave portion is inclined toward the upper side and toward the waterproof pan body in the installed state. The waterproof pan according to claim 1. The engaging receiving portion has a first water blocking surface that faces the receiving side engaging surface and extends in the vertical direction in the installed state.
The engaging convex portion is on the opposite side of the engaging portion side engaging surface and has a second water stop surface extending in the vertical direction in the installed state.
The waterproof pan according to claim 2, wherein the first water stop surface and the second water stop surface are in contact with each other in the installed state. The engaging receiving portion is on the opposite side of the receiving side engaging surface and has a third water stop surface extending in the vertical direction in the installed state.
The engaging recess has a fourth water blocking surface that faces the engaging surface on the engaging portion side and extends in the vertical direction in the installed state.
The waterproof pan according to claim 3, wherein the third water stop surface and the fourth water stop surface are in contact with each other in the installed state. The attachment is formed with a first screw hole that penetrates in the vertical direction in the installed state.
The waterproof pan main body is formed with a second screw hole that is open upward and recessed in the installed state.
The waterproof pan according to any one of claims 2 to 5, further comprising a screw that is inserted into the first screw hole and screwed into the second screw hole.

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