JP6713193B2 - Bathroom member fastening structure - Google Patents

Description

The present invention relates to a fastening structure and a fastening method for bathroom members.

BACKGROUND ART Conventionally, the following Patent Document 1 is known as a structure for connecting waterproof bathroom members such as a washroom pan and a bathtub pan installed in a bathroom. Here, a technique is disclosed in which a nut is attached in advance to a fastening portion of the washroom pan prior to connecting the washroom pan and the bathtub pan. By doing so, if the fastening portion of the bathtub pan is overlapped with the fastening portion of the washbasin pan, then both pans can be fastened together with the fastening bolts, and the construction can be simplified.

JP, 2005-68786, A

By the way, a bathtub apron panel (simply called an apron) is often attached to the bathtub, and when this is used, the bathtub apron panel is connected to the above-mentioned washing place pan or bathtub pan. In such a case, if the above-mentioned structure is used, the apron will be fastened together with the fastening pan and the bathtub pan by fastening bolts.

However, if such a collective fastening structure is adopted, there is a problem in that it is impossible to perform individual position adjustment and individual fixing with respect to the bathtub pan and the apron, which deteriorates workability.

Also, even if individual position adjustment work is performed, it is convenient to perform the same work after the bathtub is installed in the bathtub pan, but when the bathtub is installed, the fastening bolts are already attached in a protruding state. Then, the fastening bolts may interfere with the bottom surface of the bathtub to damage the bottom surface of the bathtub.
The present invention was completed in view of the above circumstances, and an object of the present invention is to provide a fastening structure and a fastening method for bathroom members, which are excellent in workability.

The fastening structure of the bathroom member in the present invention is a fastening structure for fastening the bathroom members of the washroom pan, the bathtub pan, and the apron via the fastening members, and is provided on the lower side of the fastening member, and includes the washroom pan and the bathtub pan. On the other hand, a first fastening portion which is penetrated from above to fasten both breads and a first fastening portion which is provided on the upper side of the fastening member and which projects above the both breads in the state where the wash-floor pan and the bathtub pan are fastened, And a second fastening portion that allows the apron to be fastened to allow the fastening of the apron. The fastening member includes a fastening bolt and a nut that can be screwed into the fastening bolt, and the first fastening portion and The second fastening portion is a threaded portion formed on the fastening bolt, and a nut with a collar portion that presses the upper surface of the bathtub pan is integrally formed between the first fastening portion and the second fastening portion of the fastening bolt. It is characterized by being formed .

According to the present invention, the first fastening portion and the second fastening portion are formed on the fastening member, and the work of fastening the washing place pan and the bathtub pan and the work of further fastening the apron thereto are separately performed. You can Therefore, the work is easier than the case of collectively fastening, and the position of the bathroom member can be adjusted for each work, so that the fastening work can be smoothly performed.

The perspective view which shows each bathroom member of a wash-basin pan, a bathtub pan, and an apron in Example 1. Sectional drawing which decomposes|disassembles and shows the fastening structure of each bathroom member. Sectional drawing which shows the state which completed the 1st process of fastening a bathtub pan with respect to a washing-place pan. Sectional drawing which shows the state which the 2nd process which fastens an apron is completed. Perspective view of clip A perspective view showing a clip with a nut attached and a fastening bolt

A preferred embodiment of the present invention will be described.

In the present invention, the prior SL washing space bread alone state before engagement with the bath pan is made, the nut may be held.
According to such a configuration, since the nuts are held in advance prior to the fastening of the washing place pan and the bathtub pan, the fastening work between the washing place pan and the bathtub pan can be easily performed.

<Example 1>
The bathroom according to the first embodiment includes various bath members such as a bathtub 1, a bathtub pan 2, a washroom pan 3, and an apron 4. FIG. 1 is an exploded view of these.

An example of installation work for these bathroom members will be described. This work is divided into a first step of fastening the bath pan 2 to the washing place pan 3 and a second step of further fastening the apron 4 after the first step.

At the start of the first step, first, the washing place pan 3 is horizontally attached in a state of being separated from the body floor surface (not shown).
As shown in FIG. 2, a peripheral wall 5 is formed upright on the periphery of the washing place pan 3. A projecting wall 6 extends outward and horizontally over the entire length at the upper edge of the peripheral wall 5 facing the bathtub 1. A hanging wall 7 is formed continuously over the entire length of the extending edge of the projecting wall 6 in a substantially downward direction, and a gap is held between the hanging wall 7 and the peripheral wall 5. At the lower end edge of the hanging wall 7, a holding wall 8 is formed over the entire length so as to project outward (toward the bathtub 1) and horizontally. Although the entire lower surface of the holding wall 8 is formed flush, the upper surface side has a thicker wall than the root side, and a holding portion 9 having a step between it and the root side is formed.

A taper surface 10 is formed on a side surface of the holding portion 9 facing the bathtub 1 so as to gradually incline downward. A plurality of through holes 11 are vertically formed in the holding portion 9. The through holes 11 are arranged at a constant pitch along the longitudinal direction of the holding portion 9.

As shown in FIG. 6, a plurality of nut-attached clips NC are attached to the holding portion 9 so as to correspond to the respective through holes 11.

The clip 12 is made of, for example, a synthetic resin, and as shown in FIG. 5, the base plate 13, the side plate 14 that rises obliquely from one side edge of the base plate 13 with a slope matching the slope of the above-described tapered surface 10, and the side plate 14. And a top plate 15 extending upward from the upper edge of the substrate 13 so as to face the substrate 13.
A through hole 19 through which the first fastening portion 17 of the fastening bolt 16 is inserted is formed at the center of the top plate 15 so as to pass therethrough. In addition, an upper sandwiching piece 20 is formed in a substantially V-shaped cross section over the entire length at the tip edge of the top plate 15.

On the other hand, a groove portion 21 is formed in the central portion of the substrate 13 on the leading edge side in the lengthwise direction so as to extend while penetrating from the leading edge toward the back, that is, toward the side plate 14 while penetrating. The central axis of the through hole 19 is set so as to pass through the center line of the groove portion 21 in the width direction.

On the upper surface (inner surface) of the substrate 13, nut support surfaces 23 for guiding and supporting the flanged nut 22 backward are formed on both sides of the groove 21 in the longitudinal direction. Further, on the upper surface of the substrate 13, a contact stop portion 24 is formed so as to surround the groove portion 21 and the inner portions of the nut supporting surface 23 from three sides (both sides and both sides in the width direction). The stopper 24 is formed on the inner surface (upper surface) of the substrate 13 so that its vertical cross section has an inverted L shape. Then, a part of the flange portion 22A of the flanged nut 22 can be accommodated inside thereof with a slight press fit. The flange portion 22A is sandwiched between the bottom surface and the ceiling surface inside the contact stop portion 24, and is in a state of being prevented from coming off upward. A V-shaped cutout portion 25 is formed in the center portion in the width direction of the portion of the contact stopper portion 24 arranged along the inner surface of the side plate 14. The V-shape of the notch portion 25 is formed with an angle that fits two adjacent outer surfaces of the hexagonal nut portion 22B of the flanged nut 22. As a result, in the state where the flanged nut 22 is housed in the abutting stop portion 24, the hexagonal nut portion 22B projects upward from the abutting stop portion 24, and the edge portion of the cutout portion 25 and the abutting stop portion. The flanged nut 22 is housed in a non-rotating state, because both side edges of the portion of 24 that are parallel and opposed to each other in the width direction and four continuous side surfaces of the nut portion 22B are fitted and face each other. become.

A pair of lower sandwiching pieces 26 are provided on the front edge of the substrate 13 so as to sandwich the groove portion 21 in the width direction. Both lower sandwiching pieces 26 are provided so as to project toward the washroom pan 3 side. Both lower sandwiching pieces 26 are formed in a V shape which is opposite to the upper sandwiching piece 20.
When the clip 12 is in a substantially natural state, the interval between the upper holding piece 20 and the lower holding piece 26 in the height direction is smaller than the height dimension of the holding portion 9. When the nut-equipped clip NC is attached to the holding portion 9, the upper and lower sandwiching pieces 20 and 26 are elastically widened and pressed from the bathtub 1 side. Then, when the upper holding piece 20 passes through the holding portion 9, the upper holding piece 20 elastically returns together with the top plate 15 and is caught in the step between the holding portion 9 and the holding wall 8, whereby the nut-attached clip NC is provided. Is attached to the holding portion 9 in a state where it is prevented from coming off. At this time, the mounting position of the clip 12 is adjusted so that the through hole 11 of the holding portion 9, the through hole 19 of the clip 12 and the screw hole (female screw) of the nut 22 with the flange communicate with each other coaxially.
Further, standing walls 26A are formed so as to protrude from the outer edges of the lower holding pieces 26 in the width direction so as to face each other. The upper surfaces of both lower sandwiching pieces 26 are in sliding contact with the lower surface of the holding portion 9 when the nut-equipped clip NC is mounted on the holding portion 9 to facilitate the mounting work.

As shown in FIGS. 2 and 6, the fastening bolt 16 has a shaft portion 27 extending along the central axis, and a small diameter portion 28 is coaxially projected at one end (lower end in FIG. 6) of the shaft portion 27. The small diameter portion 28 serves as an insertion guide for the through hole 19 of the clip 12.

A large-diameter spacer portion 29 is integrally formed in the substantially central portion of the shaft portion 27. The spacer portion 29 is formed in a disc shape and has an outer diameter that can be fitted into an insertion hole 30 (long hole) of the bath pan 2 described later, and its thickness is the same as the thickness of the mounting piece 31 of the bath pan 2. It is set to almost the same size.

In the shaft portion 27, a flange portion 32 is continuously formed on the upper surface side of the spacer portion 29. The flange portion 32 is formed to have a diameter larger than that of the spacer portion 29, and a lower surface thereof has a pressing surface 32</b>A capable of pressing the upper surface of the mounting piece 31 of the bath pan 2. Further, a hexagonal nut portion 33 is continuously formed on the upper surface side of the flange portion 32 in the drawing. The maximum outer diameter of the hexagon nut portion 33 is set to be substantially equal to the outer diameter of the spacer portion 29.

Further, in the shaft portion 27, the first fastening portion 17 formed by a male screw is formed on one end side (the small diameter portion 28 side) sandwiching the spacer portion 29, the collar portion 32 and the hexagonal nut portion 33, and the other end side. Similarly, a second fastening portion 18 formed by a screw is formed on the. The first fastening portion 17 is formed over a predetermined length range above the small diameter portion 28, and the second fastening portion 18 is formed over the same length range as the first fastening portion 17 from the opposite end. Has been done.

The bathtub pan 2 is temporarily placed on a support frame (not shown) while the washbasin pan 3 is installed. As shown in FIG. 1, the bathtub pan 2 is composed of a bottom wall 2A and three side walls 2B surrounding the bottom wall 2A from three sides, and the side surfaces facing the upper side and the washroom side are almost entirely opened.

As shown in FIGS. 2 to 4, a rising piece 34 is formed over substantially the entire length at the lower edge of the opening side surface of the bathtub pan 2. A mounting piece 31 is formed at the upper end of the rising piece 34 so as to extend substantially horizontally toward the washing area. A plurality of insertion holes 30 pass through the mounting piece 31 at a constant pitch in the length direction. However, the insertion hole 30 is an elongated hole in the longitudinal direction. In addition, a pair of standing pieces 35 are formed so as to be opposed to each other on both side edges in the longitudinal direction of the mounting piece 31 over the entire length.

When the bath pan 2 is temporarily placed, each insertion hole 30 is adjusted to communicate with the corresponding through hole 19 of the clip 12. After the bathtub pan 2 is temporarily placed, the bathtub 1 is set above the bathtub pan 2.

Since the fastening bolts 16 are not attached at this time, there is no possibility that the bathtub 1 and the fastening bolts 16 interfere with each other when the bathtub 1 is set, and the bottom surface of the bathtub 1 is damaged.

Subsequently, the first fastening portion 17 is inserted into the insertion hole 30 of the bath pan 2, the through hole 19 of the clip 12, and the through hole 11 of the holding portion 9 while being guided by the small diameter portion 28 of the fastening bolt 16. Then, by rotating the hexagonal nut portion 33 of the fastening bolt 16, the first fastening portion 17 is screwed into the flanged nut 22. By repeating the above-mentioned screwing operation for all the fastening bolts 16, the fastening between the bathtub pan 2 and the washing place pan 3 is completed.

By the way, in this embodiment, the bathtub 1 is set before inserting the fastening bolt 16. If the setting work of the bathtub 1 is performed after the connection work of the bathtub pan 2 and the washing place pan 3, the plurality of fastening bolts 16 are in a state of protruding upward from the mounting piece 31 of the bathtub pan 2. Therefore, the bottom surface of the bathtub 1 may be damaged by interfering with the second fastening portion 18 of the fastening bolt 16, or the bathtub 1 may be lifted and set to a height at which interference with the fastening bolt 16 may be avoided. It has to be done, which puts a heavy burden on the operator. Therefore, in order to avoid these, by setting the bathtub 1 prior to the fastening work, the work can be easily performed without burden.

Subsequently, the work of attaching the apron 4 which is the second step is performed. The apron 4 is attached to the side surface of the bathtub 1 opposite to the washing area. As shown in FIG. 1, the apron 4 has two working window holes 36 shown in parallel. As shown in FIG. 2 and the like, reinforcing ribs 37 are formed on the lower end side of the apron 4 so as to project toward the washing area. A connecting wall 38 extends substantially horizontally at the lower end of the apron 4 toward the bathtub 1 side. As shown in FIG. 4, the root portion of the connecting wall 38 serves as a temporary storage portion 38A that is placed on the upper surface of the projecting wall 6 of the washroom pan 3 when the apron 4 is fastened. In the connecting wall 38, a fastening portion 38B is formed by lowering one step from the temporary placement portion 38A on the tip side. An insertion hole 39 through which the second fastening portion 18 of the fastening bolt 16 can be loosely inserted is passed through the fastening portion 38B. The insertion holes 39 are arranged at a plurality of positions at the same pitch in accordance with the arrangement positions of the fastening bolts 16. The hole diameter of each insertion hole 39 is formed to be sufficiently larger than the outer diameter of the second fastening portion 18, and enables position adjustment when fastening the apron 4.

Further, a positioning portion 38C is formed so as to hang down along the longitudinal direction on the lower surface of the connecting wall 38 and at the boundary between the temporary placing portion 38A and the fastening portion 38B. When the apron 4 is fastened, the positioning portion 38C is inserted between the hanging wall 7 of the washing place pan 3 and the upright piece 35 (mounting piece 31) on the tip end side of the bathtub pan 2 so that the washing place pan 3 and the bathtub pan are inserted. It enables a rough positioning of the apron 4 with respect to 2 in the lateral direction shown in FIG.

The fastening work of the apron 4 is performed after the washing place pan 3 and the bathtub pan 2 are fastened (the state shown in FIG. 3). When fastening the apron 4, the washer 40 is first fitted from the upper end of the fastening bolt 16 and placed on the upper surface of the hexagonal nut portion 33 of the fastening bolt 16. In that state, the positioning portion 38C of the apron 4 is inserted between the hanging wall 7 of the washroom pan 3 and the mounting piece 31 of the bathtub pan 2 to roughly position the apron 4, and the upper end of the second fastening portion 18 The insertion hole 39 is inserted from above, and the temporary placing portion 38A is placed on the upper surface of the overhanging wall 6 of the washing place pan 3.

After this, the worker fits the washer 42, which he holds from the washing place side, through the window hole 36 of the apron 4 into the second fastening portion 18. When the cap nut 41 is screwed in, the work of fastening the apron 4 to the washing place pan 3 and the bathtub pan 2 is completed. The upper side of the apron 4 is attached to the bath 1 side.

As described above, in the first embodiment, in the shaft portion 27 of the fastening bolt 16, the first fastening portion 17 and the second fastening portion 17 are sandwiched with the spacer portion 29, the collar portion 32, and the hexagon nut portion 33 formed therebetween. The part 18 is provided separately. As a result, the first fastening portion 17 can carry out the fastening between the washing place pan 3 and the bathtub bread 2, and the second fastening portion 18 can carry out the fastening of the apron 4 after the fastening. That is, since the adjustment work for fastening the apron 4 and the adjustment work for the bathtub pan 2 with respect to the washing place pan 3 can be performed separately, the fastening work for the bathroom member can be performed efficiently.

In addition, in the first embodiment, the flanged nut 22 can be held on the washroom pan 3 by a one-touch operation using the clip 12, which also contributes to the improvement of workability.

<Other Examples>
The present invention is not limited to the embodiments described by the above description and the drawings, and the following embodiments are also included in the technical scope of the present invention.
(1) Although the case where the fastening member is the bolt and the nut is shown in the first embodiment, a resin fastening member may be used instead. As such a fastening member, for example, a pressing flange for the bathtub pan 2 is formed at the central portion in the longitudinal direction so as to project, and is elastically locked to the washbasin pan 3 at the lower end side with the flange as a boundary in a retaining state. It is conceivable that the first fastening portion is formed, and the apron 4 side is inserted at the upper end side to form the second fastening portion that is elastically locked in the retaining state.
(2) In the first embodiment, the nut is held via the clip, but the nut may be fixed to the lower surface of the holding portion by welding or the like.

(3) In the first embodiment, the nut 22 is held in the holding portion 9 of the washing place pan 3 via the clip 12, but the clip 12 and the nut 22 are eliminated and the through hole 11 of the holding portion 9 is removed. It may be formed as a screw hole.

(4) In Embodiment 1, the bathtub pan 2 is fastened by stacking it on the washbasin pan 3, but the relationship of superposition is reversed so that the washbasin pan 3 is fastened by fastening it on the bathtub pan 2. You may

2... Bath pan 3... Washing pan 4... Apron 16,52... Fastening bolt 17,50... First fastening portion 18, 51... Second fastening portion 22... Flange nut 32... Collar portion 33... Hexagon nut portion (nut)

Claims (2)

A fastening structure for fastening each bathroom member such as a washroom pan, a bathtub pan, and an apron through a fastening member,
A first fastening portion which is provided on the lower side of the fastening member and which penetrates the washing place pan and the bathtub pan from above and fastens the both pans;
It is provided on the upper side of the fastening member, and in the state where the washing place pan and the bathtub pan are fastened together, it projects above both pans, and the apron is penetrated through this projecting part to fasten the same apron. With a second fastening part that enables
The fastening member includes a fastening bolt and a nut that can be screwed into the fastening bolt, and the first fastening portion and the second fastening portion are screw portions formed on the fastening bolt.
Between the first fastening portion and the second fastening portion of the fastening bolt, a nut with a collar portion that presses the upper surface of the washing place pan or the bath pan that is arranged on the upper side is integrally formed. The fastening structure for bathroom members, which is characterized in that 2. The fastening structure for a bathroom member according to claim 1, wherein the nut is held in the washing place pan in a single state before being fastened to the bathtub pan.

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