JP4479405B2 - Bathroom floor inspection opening installation structure - Google Patents

Description

  The present invention relates to a mounting structure for a bathroom floor inspection port provided in a waterproof pan of a unit bath, and more particularly to a mounting structure for a bathroom floor inspection port provided in a waterproof pan formed of a relatively flexible material.

  In unit baths adopted in ordinary houses, waterproof pans are installed on the building floor to prevent water leaking downstairs. In the space formed between the floor of the building and the back of the waterproof pan, not only drain pipes from bathtubs and washing places, but also water / hot water pipes are often piped under the floor. This is because, if these water / hot water pipes are set up in the space formed between the wall of the unit bath and the building wall, a large space is required in this portion, and the indoor space of the unit bath is narrowed.

  The waterproof pan is provided with a floor inspection port for inspecting a space formed between the building floor and the rear surface of the waterproof pan when a problem occurs in the underfloor piping. This floor inspection port is sealed so as not to leak water by a lid or the like when not in use because of the original purpose of the waterproof pan (see, for example, Patent Document 1).

Since this waterproof pan needs to support the weight of the bather at the washing place and the weight of the hot water stored in the bathtub and the bathtub in addition to the bathtub mounting portion, it is usually a sheet-like unsaturated polyester resin molding material. A material having a certain level of strength and hardness, such as those formed by compression molding using a sheet molding compound (SMC) and those formed using thermosetting plastic (FRP) blended with fiber reinforcement. It is molded using (JIS A 4419). And the lid | cover attached in order to prevent the water leak from a floor inspection opening is often screwed directly to the opening formed in the waterproof pan.
Japanese Patent Laid-Open No. 10-195952

  By the way, if it has a special function as a material of the waterproof pan, it may be outside the standard of JIS A 4419, but it may be desired to adopt a material other than FRP or SMC. Even if it is a material that is flexible to some extent, the load per unit area is not so great if the entire bottom surface of the bathtub is received by the surface, and such a material can be supported. Alternatively, even if such a load is supported on a stand that is separately installed and the waterproof pan is exclusively provided with waterproofing, a somewhat flexible material can be adopted as the material of the waterproof pan.

  However, if a screw is screwed into such a flexible material so as to attach the lid of the floor inspection port, the screw thread collapses and becomes foolish, and the floor inspection port lid may not be firmly fixed. Or although a screw thread does not collapse, there is a possibility that the screw will advance to any extent and the waterproof pan around the inspection port may be pressed and deformed.

  The present invention has been made in consideration of the above-described circumstances. Even when a material that is somewhat flexible is used for the waterproof pan, the waterproof pan is not deformed and the lid of the floor inspection port is placed at a predetermined position. The object of the present invention is to provide a bathroom floor inspection structure that can be fixed without rattling.

  In order to solve the above-described problem, the bathroom floor inspection port mounting structure according to the present invention has an annular base that abuts on the lower surface of the opening and an upwardly standing base from the base. A support member having a plurality of rising portions provided, and a lid placed on the upper surface of the opening, and the lid and the rising portion are coupled to sandwich the opening.

  Preferably, as described in claim 2, the lid and the rising portion are coupled to each other by screw joint, and further, as described in claim 3, the height of the rising portion is equal to that of the opening. It is formed smaller than the height, and the lid and the base are brought into close contact with each other through the opening by the screwing of the screw.

  In order to solve the above-described problem, the rising portion according to claim 4 includes a groove that is recessed in the lateral direction substantially at the center in the height direction, and the opening portion is located at a position facing the groove. And a protrusion that engages with the groove.

  Or conversely, as described in claim 5, the rising portion includes a protrusion projecting in a lateral direction substantially at the center in the height direction. The opening may include a concave groove that engages with the ridge at a position facing the ridge.

  According to the mounting structure of the bathroom floor inspection port according to the present invention, even if a somewhat flexible material is used for the waterproof pan, the waterproof pan is not deformed and the cover of the floor inspection port is in a predetermined position. It can be fixed without rattling and can maintain the stable quality of the waterproof pan, preventing water leakage.

  Embodiments of a mounting structure for a floor inspection port of a unit bath according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing an overall outline of a waterproof pan 1 of a unit bath provided with a floor inspection port 26 according to the present invention. The waterproof pan 1 shown in this embodiment is broadly divided into a washing place side floor 10 and a bathtub side floor 20.

  The washroom side floor 10 is formed of FRP or SMC, and the three outer edges other than the side facing the bathtub side floor 20 are formed at the same level so that a wall panel (not shown) can be placed, and faces the bathtub side floor 20. A downward slope is formed toward the drain recess 14 to which the trap unit 12 provided at the center of the side is attached. A trap cover 13 is placed on the drain recess 14 for blinding. The washing place side floor 10 is fixed on a washing place side gantry 11 having a plurality of legs that are rigidly joined to each other and whose level is adjustable.

  The bathtub-side floor 20 is formed of a heat insulating material obtained by foaming a plastic material such as expanded polypropylene (EPP) or expanded polyethylene (EPE), and prevents the leakage of water, and the heat of the hot water stored in the bathtub is Prevents conduction and radiation from the back of the bathtub. The bathtub-side floor 20 includes a bottom portion that is located on the bottom surface of the bathtub 23 and side portions that are erected up to the height of the upper portion of the bathtub in three directions excluding the side facing the washing floor.

  Floor inspection ports 26 and 26 are provided at both ends of one side of the bathtub-side floor 20 facing the washing place-side floor 10. One of the floor inspection ports 26 functions as an inspection port for inspecting the situation under the floor, and the other functions as an insertion hole such as a water supply pipe or a hot water supply pipe to the bathtub 23. These are properly used according to the L type and R type of the bathtub 23. In addition, a hole in which the drain valve cover 27 is fitted is provided at the center of the side. The drain valve cover 27 connects the drain port of the bathtub and the bathtub-side drain elbow 12 a of the trap unit 12.

  The bathtub 23 is placed on the bottom of the bathtub-side floor 20 as the outer heat insulating layer via the bathtub bottom surface heat insulating material 24 as the inner heat insulating layer, which is molded from a material having heat retaining properties. Here, the bathtub bottom surface heat insulating material 24 is in contact with the entire bottom surface of the bathtub 23, and the bottom of the bathtub side floor 20 is formed in contact with the entire bottom surface of the bathtub bottom surface heat insulating material 24. Therefore, the weight of the bathtub 23, the pooled hot water, and the bather is not supported on the waterproof pan by a plurality of support legs as in the conventional bathtub, but is supported by the surface, so that per unit area The load is not so large, and even EPP or EPE can sufficiently support this weight.

  Thus, since the bathtub side floor 20 supports the load of the bathtub 23 and the like over the entire surface, it is necessary to receive this load on the back surface of the bathtub side floor 20 as wide as possible. Are transmitted to the bathtub-side pedestal 21 through a plurality of bathtub-side receiving frames 22.

  The bath apron 25 that covers the side surface of the washing floor 10 of the bathtub 23 and is detachable is made of polypropylene (PP), polystyrene (PS), ABS resin, or the like, as well as the FRP and SMC. It is formed, and the back side is lined with the same material as the bathtub floor and insulated. In order to facilitate access to the floor inspection port 26, a small bus apron 25a that is easy to attach and detach is formed separately at the end of the bus apron that functions as the inspection port.

  In this way, the wash floor side floor 10 and the bathtub side floor 20 are formed separately because of different materials, and the wash areas facing each other on the connected wash field side frame 11 and bathtub side frame 21 are connected. The side connection part 10a and the bathtub side connection part 20a are connected and integrated in a watertight manner, so that a waterproof pan without the risk of water leakage is obtained.

  FIG. 2 is an enlarged perspective view of the floor inspection port 26 portion, and FIG. 3 is an exploded perspective view thereof. As shown in the figure, the floor inspection port has an opening 30 that forms an opening O in the bathtub-side floor, a support member 40 that is fitted into the opening from below, and a screw that is placed on the opening 40 and is screwed. It is comprised from the lid | cover 50 fixed and the screw 60 for fixing the lid | cover 50. FIG.

  The opening 30 forms an opening O at substantially the same height as the bathtub-side connecting portion 20a at the end of the side of the bathtub-side floor 20 facing the washing floor 10 side. The opening O is formed in a pentagonal shape in which one corner of the rectangle is cut out, and the bathtub side floor below the opening O is cut out along the oblique side of the opening 30 in order to avoid the blockage of the opening O. . The shape of the opening 30 is not limited to that shown in this embodiment.

  Around the opening 30, a convex portion 31 protruding in the direction of the opening O is provided across the entire height, and between the convex portion 31 and the convex portion 31, approximately in the center in the height direction. A recess 32 having a protrusion 32a protruding in the lateral direction is provided. Some of the recesses 32 do not have the protrusions 32a.

  The support member 40 is formed by bending a plate material such as stainless steel, is formed in the same shape as the periphery of the opening 30, and has an annular base 41 that contacts the lower end of the opening 30, and upward from the base 41. It comprises a plurality of bent rising portions 42. The position of the rising portion 42 corresponds to the position of the concave portion 32 of the opening 30. Similarly, a concave groove 42a that is recessed in the lateral direction substantially at the center of the rising portion 42 in the height direction and that engages with the protrusion 32a of the concave portion 32 is formed. Further, the upper end of the rising portion 42 is further bent toward the opening O, and a screw hole 42b for fixing the lid 50 is formed. The lid 50 is a slightly larger plate material having the same shape as the opening 30 and covers the opening O from above.

  As shown in FIG. 4, the height h1 of the rising portion 42 is slightly smaller than the height h2 of the opening 30. In other words, the height h1 is slightly between the upper portion bent toward the opening O and the lid 50. The height at which the gap is generated is set.

  As shown in FIG. 4A, the support member 40 is installed by inserting the rising portion 42 into the concave portion 32 of the opening 30 from below the opening 30. At this time, the protrusion 32a of the opening 30 and the concave groove 42a of the rising portion 42 are engaged with each other, and the support member 40 is dropped from the opening 30 or pulled up following the lid when the lid 50 is removed. Is prevented.

  The lid 50 is placed and fixed on the opening 30 by inserting and screwing a screw 60 into a screw hole 50 a drilled in the lid 50 and a screw hole 42 b drilled in the rising portion 42. Thus, since both the lid 50 and the support member 40 are made of a hard material, even if the screw 60 is screwed, the screw thread is not crushed and the end of the opening 30 is not broken. As in the case where the screw 60 is screwed, the end of the opening 30 is not lost.

  As shown in FIG. 4B, the opening 30 is sandwiched between the lid 50 positioned above and the base 41 positioned below, particularly in the convex portion 31 of the opening 30. At this time, since there is a slight gap between the upper portion of the rising portion 42 bent toward the opening O and the lid 50, the opening 30 is pressed up and down as the screw 60 is screwed. The material 40, the opening 30 and the lid 50 are in close contact with each other and are fixed without rattling and without the risk of water leakage. However, the presence of the rising portion 42 limits the screw 60 so that the opening 30 is not unnecessarily deformed. Furthermore, since there is no bonding or machine fixing step, attachment is easy.

  Next, a floor inspection port mounting structure that functions as an insertion hole such as a water supply pipe or a hot water supply pipe to the bathtub 23 will be described with reference to FIG. Also in this case, it is substantially the same as the floor inspection port 26 that functions as the inspection port for inspecting the situation under the floor described above, but the frame lid 51 and the insertion hole cover 52 are used instead of the lid 50. It is different.

  The frame lid 51 is an annular plate material having an open center, unlike the lid 50 having a substantial central portion. The insertion hole cover 52 is a film-like member formed of flexible rubber or elastomer, and a projection 52a protruding stepwise upward is cut at a portion suitable for the pipe diameter to provide a water supply pipe, a hot water supply pipe, etc. Is inserted. Thereby, the support member 40 and the frame lid 51 are fixed without rattling and without fear of water leakage.

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

  In the present embodiment, the description has been given by using the example in which the protrusion 32a is formed in the concave portion 32 of the opening 30 and the concave groove 42a is formed in the rising portion 42 of the support member 40. However, for example, FIG. As shown, the same effect can be obtained even when the concave groove 32 b is formed in the concave portion 32 of the opening 30 and the protrusion 42 c is formed in the rising portion 42 of the support member 40.

  Moreover, the attachment structure of the inspection port according to the present invention is not limited to the opening provided in the bottom of the bathroom side floor 20, and when the opening is provided in the side, it is also adopted for the sealing structure around the opening. Is possible.

The disassembled perspective view which shows the whole outline | summary of a waterproof pan provided with the connection structure of the floor inspection opening which concerns on this invention. The expansion perspective view of a floor inspection mouth part. The disassembled perspective view of a floor inspection opening part. (A) is the AA arrow directional view of FIG. 2, (b) is the BB arrow directional view of the figure. The perspective view of the floor inspection opening which functions as insertion holes, such as a water supply pipe and a hot water supply pipe. The figure which shows the modification of the connection structure of the floor inspection opening which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproofing pan 10 Washing area side floor 10a Washing area side connection part 11 Washing area side mount 12 Trap unit 12a Drainage elbow 13 Trap cover 14 Drainage recessed part 20 Bathtub side floor 20a Bathtub side connection part 21 Bathtub side mount 22 Bathtub side floor receiving frame 23 Bath bottom heat insulating material 25 Bath apron 25a Small bath apron 26 Inspection port 27 Drain valve cover 30 Opening portion 31 Convex portion 32 Concavity 32a Projection 32b Concave groove 40 Support material 41 Base 42 Rising portion 42a Concave groove 42b Screw hole 42c Projection 50 Lid 51 Frame lid 52 Insertion hole cover 52a Protrusion 60 Screw O Opening

Claims (5)

A support member having an annularly formed base that abuts the lower surface of the opening, and a plurality of rising parts standing upward from the base; and a lid placed on the upper surface of the opening, the lid and the above An installation structure for a bathroom floor inspection opening, wherein an opening is sandwiched by joining a rising part. The bathroom floor inspection port mounting structure according to claim 1, wherein the lid and the rising portion are coupled by screw joining. The height of the rising portion is formed smaller than the height of the opening, and the lid and the base are brought into close contact with each other through the opening by screwing of the screw. Installation structure of bathroom floor inspection opening. The rising portion is provided with a groove that is recessed in the lateral direction substantially at the center in the height direction, and the opening includes a protrusion that engages with the groove at a position facing the groove. The attachment structure of the bathroom floor inspection port according to any one of claims 1 to 3. The rising portion includes a protrusion projecting in a lateral direction substantially at the center in the height direction, and the opening includes a concave groove that engages with the protrusion at a position facing the protrusion. The attachment structure of the bathroom floor inspection port according to any one of claims 1 to 3.

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