JPH10328064A - Leg part structure for bathtub made of frp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a reduction in cost without increase in the weight of a bathtub by providing a reinforcing rib in the direction parallel with the side of the bathtub and/or askew outward from the direction parallel therewith while being connected to leg parts protrusively arranged on the rear of the bottom part of the body of the bathtub. SOLUTION: Roughly rectangular cylindrical leg parts 20 and 20 are protrusively arranged at four corners of the rear 13 of the bottom part of a bathtub 1. There are erected reinforcing ribs 21 and 21 in the direction parallel with the side 11 from one end of each leg part 20 and reinforcing ribs 22 and 22 are erected being turned to the side 11 at an angle of 45 to the reinforcing ribs 21 and 21. The height of the reinforcing ribs 21 and 22 is made the same as the height of the leg parts 20 near the leg parts 20 and gradually lower as approaching the end part of the rear 13 of the bottom part. Other ends of the leg parts 20 are interlinked and an auxiliary reinforcing rib 23 is erected in the direction of a short side of the rear 13 of the bottom part while an auxiliary reinforcing rib 24 in the direction of a long side thereof. The height of the auxiliary reinforcing ribs 23 and 24 is made lower than the height of the leg parts 20 to increase the freedom of a piping of a drain pipe from the bathtub 1 and a piping of an air pipe for bubbling.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明が属する技術分野】本発明は、ＦＲＰ製浴槽の脚
部構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg structure of a bathtub made of FRP.

【０００２】[0002]

【従来の技術】従来、ＦＲＰ浴槽の底部の強度を確保す
るためには、底部のＦＲＰ層の肉厚を厚くしたり、底部
裏面の周縁に一体成形された補強リブを張り巡らせた
り、該補強リブを底部裏面の周縁だけでなく該周縁内部
にも格子状に設けたり、或いは、底部裏面に木材、金属
製角パイプ、軽量形鋼等の補強材を取り付けたりなされ
ている。2. Description of the Related Art Conventionally, in order to ensure the strength of the bottom of an FRP bath, the thickness of an FRP layer at the bottom is increased, a reinforcing rib integrally formed on the periphery of the back surface of the bottom is stretched, The ribs are provided not only in the periphery of the bottom rear surface but also in the inside of the periphery in a lattice shape, or a reinforcing material such as wood, a metal square pipe, a lightweight steel shape is attached to the bottom rear surface.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、底部の
ＦＲＰ層の肉厚を厚くする方法では、浴槽の重量が重く
なる、コストアップになる、製造時に肉厚部分の硬化に
長時間を要する、等の問題がある。また、底部裏面の周
縁に補強リブを張り巡らせたり、上記のような各種の補
強材を取り付ける方法では、浴槽底部からの排水管の配
管において排水管を補強リブや補強材に貫通させる作業
が必要となり、さらには、気泡を発生させる浴槽の場合
には気泡用の空気管を裏面に配管する際に上記リブや補
強材が邪魔になる、といった問題があった。However, in the method of increasing the thickness of the bottom FRP layer, the weight of the bath tub increases, the cost increases, and it takes a long time to cure the thick portion during manufacturing. There is a problem. In addition, in the method of attaching reinforcing ribs around the periphery of the bottom surface of the bottom or attaching various kinds of reinforcing materials as described above, it is necessary to penetrate the drainage pipes through the reinforcing ribs and reinforcing materials in the drainage pipe from the bottom of the bathtub. Further, in the case of a bathtub that generates air bubbles, there is a problem that the ribs and the reinforcing material hinder the piping of the air pipe for air bubbles on the back surface.

【０００４】本発明は、上述の事情を考慮してなされた
ものであり、その目的は、浴槽の重量を大きくせず、低
コスト化が図れ、高生産性の製造が可能で、浴槽からの
排水管の配管や気泡用空気管の配管の自由度の大きいＦ
ＲＰ製浴槽の脚部構造を提供することにある。The present invention has been made in consideration of the above circumstances, and has as its object to increase the cost of the bathtub without increasing the weight of the bathtub, to enable high-productivity production, and to reduce the cost of the bathtub. F with a high degree of freedom for drain pipe piping and air bubble piping
An object of the present invention is to provide a leg structure of a bathtub made of RP.

【０００５】[0005]

【課題を解決するための手段】本発明のＦＲＰ製浴槽の
脚部構造は、浴槽本体と脚部が一体で成形されたＦＲＰ
浴槽の脚部構造であって、浴槽本体の底部裏面に脚部が
突設されており、該脚部に接続して浴槽側面に平行方
向、及び／又は該平行方向から斜め外側方向に、補強リ
ブが設けられていることを特徴とする。The foot structure of the FRP bathtub according to the present invention is an FRP having a bathtub body and legs integrally formed.
A leg structure of a bathtub, in which a leg is protruded from the bottom rear surface of the bathtub body, and is connected to the leg portion to reinforce in a direction parallel to a side surface of the bathtub and / or diagonally outward from the parallel direction. A rib is provided.

【０００６】本発明の脚部構造を有するＦＲＰ製浴槽の
製造方法としては、従来からのＦＲＰ製浴槽製造に用い
られている方法がいずれも採用可能であり、例えば、ハ
ンドレイアップ法、スプレーアップ法、メタルマッチド
ダイ法、プレス成形法等が挙げられる。[0006] As a method of manufacturing the FRP bathtub having the leg structure of the present invention, any method conventionally used for manufacturing a FRP bathtub can be adopted. For example, a hand lay-up method, a spray-up method, and the like. Method, metal matched die method, press molding method and the like.

【０００７】本発明における浴槽本体の底部裏面に突設
される脚部の形状としては、特に限定されるものではな
く、例えば、円盤状、円筒状、楕円柱状、楕円筒状、半
楕円柱状、半楕円筒状、四角柱状、四角筒状、長方形筒
状等が挙げられる。なかでも、成形性、重量、意匠性等
から四角筒状、長方形筒状が好ましい。上記底部裏面に
突設される脚部の数としては、浴槽の大きさ、形状等に
より適宜決められるが、通常、底部裏面の四隅近くに４
個設けられる。[0007] The shape of the legs protruding from the bottom rear surface of the bathtub body in the present invention is not particularly limited. Examples include a semi-elliptical cylindrical shape, a square pole shape, a square cylindrical shape, a rectangular cylindrical shape, and the like. Among them, a square tubular shape and a rectangular tubular shape are preferable from the viewpoint of moldability, weight, design property and the like. The number of legs projecting from the bottom rear surface is appropriately determined depending on the size, shape, etc. of the bathtub.
Are provided.

【０００８】本発明における補強リブは、上記脚部に接
続して浴槽側面に平行方向、及び／又は該平行方向から
斜め外側方向（浴槽側面側に角度を持った方向）に設け
られており、上記脚部と一体に成形されている。この補
強リブは、通常、浴槽裏面の端部まで延長して設けられ
ている。該補強リブの高さは脚部と接続している近傍で
は脚部と同一高さとなされ、浴槽裏面の端部に近づくに
つれ高さが暫減する形状となされるのが好ましい。The reinforcing rib in the present invention is connected to the leg and provided in a direction parallel to the side surface of the bathtub and / or diagonally outward from the parallel direction (a direction having an angle toward the side surface of the bathtub). It is formed integrally with the leg. The reinforcing rib is usually provided to extend to the end of the back surface of the bathtub. It is preferable that the height of the reinforcing rib be the same as the height of the leg near the connection with the leg, and the height be reduced gradually as approaching the end of the back surface of the bathtub.

【０００９】上記補強リブは、浴槽の大きさ、形状、重
量等により、上記浴槽側面に平行方向に設けられた補強
リブ単独、上記平行方向から斜め外側方向に設けられた
補強リブ単独、又は両方併設、が適宜選択される。上記
平行方向から斜め外側方向に設けられる補強リブは、必
要に応じ複数個設けられる。上記平行方向からの角度と
しては９０度までとなさる。該斜め方向の補強リブが１
個の場合には、上記角度としては４５度程度が好まし
い。Depending on the size, shape, weight and the like of the bathtub, the reinforcing ribs may be provided alone in the direction parallel to the side surface of the bathtub, alone or diagonally outward from the parallel direction. Attached is selected as appropriate. A plurality of reinforcing ribs provided in the obliquely outward direction from the parallel direction are provided as necessary. The angle from the parallel direction is up to 90 degrees. The oblique reinforcing rib is 1
In this case, the angle is preferably about 45 degrees.

【００１０】脚部と脚部との間には、必要に応じ補助補
強リブを設けてもよい。通常、該補助補強リブは脚部と
脚部とを接続して浴槽本体及び脚部と一体成形されて浴
槽裏面に立設される。この場合該補助補強リブの高さ
は、排水管や空気管の配管を容易にするため、脚部及び
補強リブの高さより低くなされる。An auxiliary reinforcing rib may be provided between the legs as required. Normally, the auxiliary reinforcing rib connects the legs to each other, is formed integrally with the bathtub body and the legs, and stands upright on the back surface of the bathtub. In this case, the height of the auxiliary reinforcing rib is set lower than the height of the leg and the reinforcing rib in order to facilitate the piping of the drain pipe and the air pipe.

【００１１】[0011]

【作用】本発明のＦＲＰ製浴槽の脚部構造は、浴槽本体
と脚部が一体で成形されたＦＲＰ浴槽の脚部構造におい
て浴槽本体の底部裏面に脚部が突設されており、該脚部
に接続して浴槽側面に平行方向、及び／又は該平行方向
から斜め外側方向に、補強リブが設けられているので、
浴槽の重量を大きくせず、低コスト化が図れ、高生産性
の製造が可能で、浴槽からの排水管の配管や気泡用空気
管の配管の自由度を大きくすることができる。また、運
搬中又は据え付け工事中等において浴槽が落下し脚部や
角部に衝撃を受けた場合でも、該補強リブにより衝撃力
が分散され、浴槽の破損を防止することができる。According to the leg structure of the FRP bathtub of the present invention, in the FRP bathtub leg structure in which the bathtub body and the leg are integrally formed, the leg is projected from the bottom rear surface of the bathtub body. Since the reinforcing ribs are provided in the direction parallel to the side of the bathtub and / or diagonally outward from the parallel direction,
The weight of the bathtub is not increased, the cost can be reduced, the production can be performed with high productivity, and the degree of freedom of the piping of the drain pipe from the bathtub and the piping of the air pipe for bubbles can be increased. Further, even when the bath tub falls during transportation or installation work and receives an impact on the legs or corners, the impact force is dispersed by the reinforcing ribs, and damage to the bath tub can be prevented.

【００１２】[0012]

【発明の実施の形態】次に、本発明の実施の形態を図面
を参照しながら説明する。図１は、本発明のＦＲＰ製浴
槽の脚部構造の一例（実施例１）を示す部分拡大斜視図
である。Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially enlarged perspective view showing an example (Example 1) of a leg structure of an FRP bathtub of the present invention.

【００１３】図１において、浴槽１は側面１１、横面１
２、底部裏面１３よりなる。底部裏面１３の四隅には略
長方形筒状の脚部２０、２０が突設されており、各脚部
２０の一端から側面１１と平行する方向に立設された補
強リブ２１、２１、及び該補強リブ２１、２１とは４５
度の角度で側面１１に向いた補強リブ２２、２２が立設
されている。補強リブ２１及び２２の高さは、脚部２０
の近傍では脚部２０の高さと同一になされており、底部
裏面１３の端部に近づくとともに漸次低くなされてい
る。図では省略されているが、浴槽の左半分においても
同様の脚部２０、補強リブ２１、補強リブ２２が設けら
れている。In FIG. 1, a bathtub 1 has a side surface 11 and a side surface 1.
2, consisting of a bottom rear surface 13. At the four corners of the bottom rear surface 13, substantially rectangular cylindrical legs 20, 20 are projected, and reinforcing ribs 21, 21 erected from one end of each leg 20 in a direction parallel to the side surface 11, and The reinforcing ribs 21 and 21 are 45
Reinforcing ribs 22 and 22 are provided upright facing the side surface 11 at an angle of degrees. The height of the reinforcing ribs 21 and 22 is
Is made the same as the height of the leg portion 20 and gradually becomes lower as it approaches the end of the bottom rear surface 13. Although not shown in the drawing, similar leg portions 20, reinforcing ribs 21, and reinforcing ribs 22 are provided in the left half of the bathtub.

【００１４】各脚部２０の他端同士を連結して、底部裏
面１３の短辺方向には補助補強リブ２３が、また底部裏
面１３の長辺方向には補助補強リブ２４が立設されてい
る。補助補強リブ２３、２４の高さは、脚部２０の高さ
よりも低くなされており、本実施例１では脚部２０の高
さの略半分とした。The other ends of the legs 20 are connected to each other, and auxiliary reinforcing ribs 23 are provided in the short side direction of the bottom rear surface 13 and auxiliary reinforcing ribs 24 are provided in the long side direction of the bottom rear surface 13. I have. The height of the auxiliary reinforcing ribs 23 and 24 is lower than the height of the leg 20, and in the first embodiment, the height is approximately half the height of the leg 20.

【００１５】図２は、図１のＸ−Ｘ線断面図である。１
４は浴槽１の底部である。図３は、浴槽１をプレス成形
により製造する（本実施例では図２とは上下逆方向でプ
レス成形される）場合に用いられる金型の一例であっ
て、図２と同じ箇所を成形する場合の部分断面図であ
る。この金型は上型（雄型）４１と、下型（雌型）４２
からなり、該下型４２には入れ子型４３が入れ子にされ
ている。３０は上型４１と下型４２及び入れ子型４３に
より形成されるキャビティである。該入れ子型４３を交
換することにより、底部１４の厚さ及び補助補強リブ２
３の幅と高さを変更することができる。実施例１におい
ては底部１４の厚さは５ｍｍとした。FIG. 2 is a sectional view taken along line XX of FIG. 1
Reference numeral 4 denotes the bottom of the bathtub 1. FIG. 3 shows an example of a mold used when the bathtub 1 is manufactured by press molding (in the present embodiment, press-molding is performed in the upside-down direction of FIG. 2), and the same portion as in FIG. 2 is molded. It is a partial sectional view in the case. This mold has an upper mold (male mold) 41 and a lower mold (female mold) 42
The lower mold 42 is nested with a nesting mold 43. Reference numeral 30 denotes a cavity formed by the upper mold 41, the lower mold 42, and the nest mold 43. By replacing the nesting mold 43, the thickness of the bottom portion 14 and the auxiliary reinforcing rib 2 can be reduced.
3, the width and height can be changed. In Example 1, the thickness of the bottom portion 14 was 5 mm.

【００１６】図４は、本発明のＦＲＰ製浴槽の脚部構造
の他の一例（実施例２）の図２に相当する箇所を成形す
るための金型の部分断面図である。実施例２の浴槽の底
部には、気泡を発生させる孔が多数穿設されており、底
部裏面には空気管が複雑に配管される構造となってい
る。この配管のためには実施例１の浴槽に設けられたよ
うな補助補強リブ２３、２４が邪魔になる。そこで、実
施例２ではリブを形成させる凹部を有しない上面が平坦
な入れ子型４４を下型４２に入れ込んでプレス成形を行
い、底部の厚さが７ｍｍで、補助補強リブ２３、２４を
立設させない底部構造のＦＲＰ製浴槽を得た。得られた
浴槽の底部の耐衝撃強度は実施例１の浴槽とほぼ同一の
数値を確保できた。FIG. 4 is a partial sectional view of a mold for forming a portion corresponding to FIG. 2 of another example (embodiment 2) of the leg structure of the FRP bathtub of the present invention. A large number of holes for generating air bubbles are formed in the bottom of the bathtub of the second embodiment, and an air pipe is complicatedly provided on the back surface of the bottom. Auxiliary reinforcing ribs 23 and 24 provided in the bathtub of the first embodiment interfere with this piping. Therefore, in the second embodiment, a nesting die 44 having a flat surface without a concave portion for forming a rib is put into a lower die 42 and press-formed, and the bottom portion has a thickness of 7 mm and the auxiliary reinforcing ribs 23 and 24 are set up. An FRP bathtub having a bottom structure not to be provided was obtained. The impact resistance at the bottom of the obtained bathtub was almost the same as that of the bathtub of Example 1.

【００１７】[0017]

【発明の効果】本発明のＦＲＰ製浴槽の脚部構造は、上
述の構成とされているので、浴槽の重量を大きくせず、
低コスト化が図れ、高生産性の製造が可能で、浴槽から
の排水管の配管や気泡用空気管の配管の自由度を大きく
することができる。また、運搬中又は据え付け工事中等
において浴槽が落下し脚部や角部に衝撃を受けた場合で
も、該補強リブにより衝撃力が分散され、浴槽の破損を
防止することができる。The leg structure of the FRP bathtub according to the present invention has the above-mentioned structure, so that the weight of the bathtub is not increased.
The cost can be reduced, the production can be performed with high productivity, and the degree of freedom of the piping of the drain pipe from the bathtub and the piping of the air pipe for air bubbles can be increased. Further, even when the bath tub falls during transportation or installation work and receives an impact on the legs or corners, the impact force is dispersed by the reinforcing ribs, and damage to the bath tub can be prevented.

【００１８】[0018]

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明のＦＲＰ製浴槽の脚部構造の一例を示す
部分拡大斜視図。FIG. 1 is a partially enlarged perspective view showing an example of a leg structure of an FRP bathtub of the present invention.

【図２】図１のＸ−Ｘ線断面図。FIG. 2 is a sectional view taken along line XX of FIG.

【図３】本発明のＦＲＰ製浴槽の脚部構造をプレス成形
する際に用いられる金型の一例を示す部分断面図。FIG. 3 is a partial cross-sectional view showing an example of a mold used for press-forming the leg structure of the FRP bathtub of the present invention.

【図４】本発明のＦＲＰ製浴槽の脚部構造をプレス成形
する際に用いられる金型の他の一例を示す部分断面図。FIG. 4 is a partial cross-sectional view showing another example of a mold used for press-forming the leg structure of the FRP bathtub of the present invention.

【符号の説明】[Explanation of symbols]

１ 浴槽 １１ 側面 １２ 横面 １３ 底部裏面 １４ 底部 ２０ 脚部 ２１、２２ 補強リブ ２３、２４ 補助補強リブ ３０ キャビティー ４１ 上型 ４２ 下型 ４３、４４ 入れ子型 Reference Signs List 1 bathtub 11 side surface 12 side surface 13 bottom back surface 14 bottom 20 leg 21, 22 reinforcing rib 23, 24 auxiliary reinforcing rib 30 cavity 41 upper mold 42 lower mold 43, 44 nesting mold

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 浴槽本体と脚部が一体で成形されたＦＲ
Ｐ浴槽の脚部構造であって、浴槽本体の底部裏面に脚部
が突設されており、該脚部に接続して浴槽側面に平行方
向、及び／又は該平行方向から斜め外側方向に、補強リ
ブが設けられていることを特徴とするＦＲＰ製浴槽の脚
部構造。1. An FR in which a bathtub body and a leg are integrally formed.
The leg structure of the P bath tub, in which a leg is projected from the bottom rear surface of the bath tub body, connected to the leg, in a direction parallel to the bath tub side, and / or diagonally outward from the parallel direction, A leg structure of an FRP bathtub, wherein a reinforcing rib is provided.