JP5375444B2 - Bathtub leg structure - Google Patents

Bathtub leg structure Download PDF

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JP5375444B2
JP5375444B2 JP2009197593A JP2009197593A JP5375444B2 JP 5375444 B2 JP5375444 B2 JP 5375444B2 JP 2009197593 A JP2009197593 A JP 2009197593A JP 2009197593 A JP2009197593 A JP 2009197593A JP 5375444 B2 JP5375444 B2 JP 5375444B2
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reinforcing rib
leg
corner portion
bathtub
legs
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JP2011045601A (en
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憲彦 松尾
祐史 山本
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Noritz Corp
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Noritz Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a leg structure of the bathtub in which the formability is improved by connecting a reinforcing rib to legs in a well-balanced manner, and the load of hot water and a bather can be supported stably, and also the strength of the bathtub is improved as the stress is prevented from being concentrated on the legs even when an impact is given to the bottom of the bathtub. <P>SOLUTION: A reinforcing rib 2 is formed in a frame shape on the rear surface of bottom 1 as viewed from below. In the rear surface of outside of the bottom 1 of this reinforcing rib 2, legs 3 are integrally molded with the reinforcing rib 2 in the bottom 1 in contact with the reinforcing rib 2. The legs 3 are formed on corner parts 2a of the reinforcing rib 2 of the corner of bottom 1, being extended to diagonally outward with respect to the corner parts 2a as viewed from below. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、浴槽の脚構造に関し、更に詳しくは脚が浴槽本体に一体成形されている浴槽の脚構造に関するものである。   The present invention relates to a bathtub leg structure, and more particularly to a bathtub leg structure in which a leg is integrally formed with a bathtub body.

従来この種の脚構造としては、例えば特許文献1に記載されているものがある。
この従来構造は、浴槽本体の底部裏面に、矩形に補助補強リブが形成され、このリブのコーナー部から位置がずらされて脚が形成されると共に、各脚の外側面に、下方から見て向きが異なるよう2枚の補強リブが形成されているものである。
Conventionally, as this type of leg structure, there is one described in Patent Document 1, for example.
In this conventional structure, a rectangular auxiliary reinforcing rib is formed on the bottom rear surface of the bathtub body, and a leg is formed by shifting the position from the corner portion of the rib, and on the outer surface of each leg as viewed from below. Two reinforcing ribs are formed in different directions.

而して、この従来構造は、上記の通り、脚がリブのコーナー部からずらされて形成され、また2枚の補強リブが向きを違えて脚に接続されていた。
従ってこの従来構造の場合は、成形不良が起き易く、またリブと脚とのバランスが悪いため、例えば浴槽の底部に前後左右から強い衝撃が加わると、脚に応力が集中し易いものであった。その結果、これによると、脚が損壊したり、底部にひび割れなどが起きることがあり、荷重を長期間にわたって安定的に支持できない、という問題点があった。
Thus, as described above, this conventional structure is formed by shifting the leg from the corner of the rib, and the two reinforcing ribs are connected to the leg in different directions.
Therefore, in the case of this conventional structure, molding defects are likely to occur, and the balance between the ribs and the legs is poor. For example, when a strong impact is applied to the bottom of the bathtub from the front, rear, left and right, stress tends to concentrate on the legs. . As a result, according to this, there is a problem that the leg may be broken or a crack may occur at the bottom, and the load cannot be stably supported over a long period of time.

特開平10−328064号公報Japanese Patent Laid-Open No. 10-328064

本発明は、このような従来の問題点に鑑み、提案されたものである。
従って本発明の解決しようとする技術的課題は、リブと脚とをバランスを良く接続して成形性を良くし、また湯や入浴者の荷重を安定的に支持できるようにすると共に、底に衝撃が加わった場合にも、脚に応力が集中することを防止できるようにし、強度が高くなるよう形成した浴槽の脚構造を提供することにある。
The present invention has been proposed in view of such conventional problems.
Therefore, the technical problem to be solved by the present invention is to improve the formability by connecting the ribs and legs in a well-balanced manner, and to stably support the load of hot water and bathers, and at the bottom. An object of the present invention is to provide a leg structure for a bathtub formed so as to prevent stress from concentrating on a leg even when an impact is applied and to increase strength.

本発明は、上記の課題を解決するため、次のような技術的手段を採る。
即ち本発明は、図1等に示されるように、底1の裏面に補強用リブ2が下方から見て枠形に形成され、この補強用リブ2の外側の底1の裏面に、補強用リブ2に接して脚3が補強用リブ2と共に底1に一体成形されている浴槽の脚構造であって、上記の脚3が、底1の隅の補強用リブ2のコーナー部2aに、下方から見てコーナー部2aの斜め外側方に延ばされて形成されていることを特徴とする(請求項1)。
The present invention employs the following technical means in order to solve the above problems.
That is, in the present invention, as shown in FIG. 1 and the like, the reinforcing rib 2 is formed in a frame shape on the back surface of the bottom 1 as viewed from below, and the reinforcing rib 2 is formed on the back surface of the bottom 1 outside the reinforcing rib 2 for reinforcing. A leg structure of a bathtub in which the leg 3 is integrally formed with the reinforcing rib 2 and the bottom 1 in contact with the rib 2, and the leg 3 is formed on the corner portion 2 a of the reinforcing rib 2 at the corner of the bottom 1. It is formed so as to extend obliquely outward of the corner portion 2a when viewed from below (claim 1).

ここで、斜め外側方に延ばされ、とは、脚3は下方から見て補強用リブ2に対して斜めになるよう外側方に延ばされている、ということを意味する。本発明は、具体的には、例えば脚3が、底1の隅の補強用リブ2のコーナー部2aに、下方から見てコーナー部2aの角度を略二等分する線L上において、補強用リブ2に対して斜め外側方に延ばされることで実現される。この場合、補強用リブ2の形状が下方から見て、例えば長方形や正方形のときは、コーナー部2aの角度が90度になるから、線Lは下方から見て45度の位置に引かれることになる。
而して、ここで、略二等分とは、本発明の課題を実現できる範囲であれば、完全に二等分される場合には限られない、ということを意味する。
Here, being extended diagonally outward means that the leg 3 is extended outward so as to be inclined with respect to the reinforcing rib 2 when viewed from below. Specifically, the present invention reinforces, for example, the leg 3 on the line L that bisects the angle of the corner portion 2a to the corner portion 2a of the reinforcing rib 2 at the corner of the bottom 1 when viewed from below. This is realized by extending obliquely outward with respect to the rib 2 for use. In this case, when the shape of the reinforcing rib 2 is a rectangle or a square when viewed from below, for example, the angle of the corner portion 2a is 90 degrees, so that the line L is drawn at a position of 45 degrees when viewed from below. become.
Thus, here, “substantially bisected” means that it is not limited to completely bisected as long as the object of the present invention can be realized.

また本発明の場合、補強用リブ2は、四角形の枠形に形成され、コーナー部2aが湾曲されているのが好ましい(請求項2)。
なぜならこれによると、成形用の金型を複雑にすることなく、且つ一定の強度を有する状態で補強用リブ2を効率良く形成できるからである。またこの場合は、コーナー部2aが湾曲されているから、これによると底1に衝撃が加わったときの応力集中を緩和でき、しかも成形時にコーナー部2aにおいて樹脂5(図5参照)の流れを円滑化でき、一層、成形不良を回避できるからである。
Further, in the case of the present invention, it is preferable that the reinforcing rib 2 is formed in a rectangular frame shape and the corner portion 2a is curved (claim 2).
This is because, according to this, the reinforcing rib 2 can be efficiently formed without complicating the molding die and having a certain strength. Further, in this case, since the corner portion 2a is curved, the stress concentration when an impact is applied to the bottom 1 can be alleviated, and the flow of the resin 5 (see FIG. 5) in the corner portion 2a can be reduced during molding. This is because it can be made smoother and molding defects can be avoided.

また本発明は、補強用リブ2が、コーナー部2aにおいて脚3と略同じ高さに形成されているのが好ましい(請求項3)。
なぜならこれによると、補強用リブ2が脚3と協働して荷重を支持でき、従って支持機能、耐荷機能が高まり、またコーナー部2aの機械的強度を向上できるからである。ここで、略同じ高さ、とは、補強用リブ2が脚3と協働して荷重を支持可能であれば、高さが全く同一の場合には限られない、ということを意味する。
In the present invention, it is preferable that the reinforcing rib 2 is formed at substantially the same height as the leg 3 in the corner portion 2a.
This is because, according to this, the reinforcing rib 2 can support the load in cooperation with the leg 3, so that the support function and the load resistance function can be enhanced, and the mechanical strength of the corner portion 2a can be improved. Here, “substantially the same height” means that the height is not limited to the same height as long as the reinforcing rib 2 can support the load in cooperation with the leg 3.

また本発明は、脚3が略平行で対になった板片3aで形成されているのが好ましい(請求項4)。
なぜならこれによると、成形材料を節減でき、また重量を軽減できるからである。ここで、略平行とは、完全な平行状の場合には限られない、ということを意味する。また本発明の場合、脚3は、例えば対になった板片3aを、例えば二組備えて形成されているのでも良い。
In the present invention, it is preferable that the legs 3 are formed of plate pieces 3a which are substantially parallel and paired (claim 4).
This is because the molding material can be saved and the weight can be reduced. Here, “substantially parallel” means that it is not limited to a completely parallel case. Further, in the case of the present invention, the leg 3 may be formed by providing, for example, two sets of paired plate pieces 3a.

本発明は、このように底の裏面に補強用リブを下方から見て枠形に形成し、この補強用リブの外側に補強用リブに接して脚を補強用リブと共に底の裏面に一体成形している浴槽の脚構造であって、上記の脚を、底の隅の補強用リブのコーナー部に、下方から見てコーナー部の斜め外側方に延ばして形成しているものである。
従って本発明の場合は、補強用リブのコーナー部において成形性が良くなり、補強用リブと脚の位置のバランスが良くなる。それ故、本発明によると、その分、強度が高まり、脚に応力が集中することを防止でき、湯や入浴者の荷重を安定的に支持できる。
In the present invention, the reinforcing rib is formed in a frame shape when viewed from below on the back surface of the bottom, and the leg is integrally formed on the back surface of the bottom together with the reinforcing rib on the outside of the reinforcing rib. The above-mentioned leg is formed at the corner portion of the reinforcing rib at the bottom corner so as to extend obliquely outward of the corner portion when viewed from below.
Therefore, in the case of the present invention, the formability is improved at the corner portion of the reinforcing rib, and the balance between the position of the reinforcing rib and the leg is improved. Therefore, according to the present invention, the strength is increased accordingly, stress can be prevented from concentrating on the leg, and the load of hot water or a bather can be stably supported.

本発明の脚構造の好適な一実施形態を示す浴槽の底面図である。It is a bottom view of the bathtub which shows suitable one Embodiment of the leg structure of this invention. 同上脚構造を示す浴槽の正面図である。It is a front view of the bathtub which shows a leg structure same as the above. 同上脚構造を示す浴槽の斜視図である。It is a perspective view of the bathtub which shows a leg structure same as the above. 同上脚構造を示す浴槽の要部斜視図である。It is a principal part perspective view of the bathtub which shows a leg structure same as the above. 成形時の樹脂の流れを説明するための浴槽の底面図である。It is a bottom view of the bathtub for demonstrating the flow of the resin at the time of shaping | molding. 同上脚構造の他の実施形態を示す要部正面図である。It is a principal part front view which shows other embodiment of a leg structure same as the above.

以下、本発明を実施するための好適な一実施形態を説明する。
本発明は、図1等に示されるように、底1の裏面に補強用リブ2が下方から見て枠形に形成されている。この実施形態の場合、補強用リブ2は、四角形の枠形に形成され、コーナー部2aが、半径30mmの曲率で湾曲されている。
Hereinafter, a preferred embodiment for carrying out the present invention will be described.
In the present invention, as shown in FIG. 1 and the like, reinforcing ribs 2 are formed in a frame shape on the back surface of the bottom 1 when viewed from below. In the case of this embodiment, the reinforcing rib 2 is formed in a rectangular frame shape, and the corner portion 2a is curved with a radius of curvature of 30 mm.

また本発明は、補強用リブ2の外側の底1の裏面に、補強用リブ2に接して脚3が補強用リブ2と共に底1に一体成形されている。なお、補強用リブ2の内側には底1の強度を高めるための補助リブ4が補強用リブ2と一体化されて平行状に形成されている。   Further, according to the present invention, a leg 3 is integrally formed with the reinforcing rib 2 and the bottom 1 on the back surface of the bottom 1 outside the reinforcing rib 2 in contact with the reinforcing rib 2. An auxiliary rib 4 for increasing the strength of the bottom 1 is integrated with the reinforcing rib 2 and formed in parallel inside the reinforcing rib 2.

また本発明の場合、上記の脚3は、底1の隅の補強用リブ2のコーナー部2aに、下方から見てコーナー部2aの斜め外側方に延ばされて形成されている。而して、この実施形態の場合、脚3は、コーナー部2aの角度を略二等分する線L上において、補強用リブ2に対し斜めになるよう外側方に延ばされて形成されている。なお、この実施形態では、コーナー部2aの角度は90度であるため、線Lは45度の位置に引かれ、従って脚3は45度の向きで延ばされている。   Further, in the case of the present invention, the above-described leg 3 is formed on the corner portion 2a of the reinforcing rib 2 at the corner of the bottom 1 so as to extend obliquely outward of the corner portion 2a when viewed from below. Thus, in the case of this embodiment, the legs 3 are formed so as to be inclined outward with respect to the reinforcing rib 2 on the line L that bisects the angle of the corner portion 2a. Yes. In this embodiment, since the angle of the corner portion 2a is 90 degrees, the line L is drawn at a position of 45 degrees, and thus the leg 3 is extended in the direction of 45 degrees.

また補強用リブ2は、図2〜図4に示されるように、この実施形態ではコーナー部2aにおいて脚3と同じ高さに形成されている。即ち、補強用リブ2は、コーナー部2a以外の箇所では高さが低い状態で長く形成され、コーナー部2aに近づくのに連れて波形に徐々に高く形成され、コーナー部2aにおいては脚3と同じ高さに形成されている。   Further, as shown in FIGS. 2 to 4, the reinforcing rib 2 is formed at the same height as the legs 3 in the corner portion 2 a in this embodiment. That is, the reinforcing rib 2 is formed long in a state where the height is low at a portion other than the corner portion 2a, and gradually increases in a waveform as it approaches the corner portion 2a. It is formed at the same height.

またこの実施形態の本発明の場合、脚3は平行一対の板片3aで形成されている。この板片3aの突き出し側の開放状の側端3bは、脚3の接地辺部3cから底1に向かって徐々に立ち上げられて傾斜状に形成されている。なお、板片3a同士は、板片3aと同じ高さの連結片3dで連結され、補強されている。   In the case of this embodiment of the present invention, the legs 3 are formed of a pair of parallel plate pieces 3a. An open side end 3b on the protruding side of the plate piece 3a is gradually raised from the grounding side 3c of the leg 3 toward the bottom 1 and formed in an inclined shape. The plate pieces 3a are connected and reinforced by connecting pieces 3d having the same height as the plate pieces 3a.

而して、この実施形態の本発明品は、図5に矢示されるように、成形時に補強用リブ2の中央部から樹脂5が金型内に注入加圧されて形成されるものである。
この場合、この実施形態の本発明は、上記の通り、脚3がコーナー部2aの角度を略二等分する線L上において、補強用リブ2に対し斜めになるよう外側方に延ばされているから、樹脂5は、補強用リブ2のコーナー部2aと脚3を形作る金型キャビティ内を、コーナー部2aから脚3に向かって円滑に且つバランス良く流れ、従って成形不良(充填不足)を生じることがない。
Thus, the product of the present invention of this embodiment is formed by injecting and pressing the resin 5 into the mold from the center of the reinforcing rib 2 at the time of molding, as indicated by arrows in FIG. .
In this case, as described above, the present invention of this embodiment is extended outward so that the leg 3 is inclined with respect to the reinforcing rib 2 on the line L that bisects the angle of the corner portion 2a. Therefore, the resin 5 flows smoothly and in a balanced manner from the corner portion 2a toward the leg 3 in the mold cavity forming the corner portion 2a and the leg 3 of the reinforcing rib 2, and thus molding failure (insufficient filling). Will not occur.

以上の処において、本発明の場合、脚3の形成角度は、樹脂5の充填位置と脚3を設ける位置との関係で適宜決定されるものである。
また上記の補強用リブ2は、図6に示されるように、コーナー部2aの位置で矩形波状に立ち下げられ、コーナー部2aにおいて脚3と略同じ高さに形成されているのでも良い。この場合は、補強用リブ2と脚3との接続が、コーナー部2aにおいて直線的であるため、その分、金型の加工コストを低廉化できるものである。
また本発明の場合、補強用リブ2は、成形性が損なわれない範囲であれば、枠形の一部が切り欠かれ、全周がつながっていない状態でも良い。
更に、上記の脚3は、対になった板片3aの間に、追加片が平行状に介装されて形成されているのでも良い。
In the above process, in the present invention, the formation angle of the leg 3 is appropriately determined depending on the relationship between the filling position of the resin 5 and the position where the leg 3 is provided.
In addition, as shown in FIG. 6, the reinforcing rib 2 may be formed in a rectangular wave shape at the corner portion 2 a and formed at substantially the same height as the legs 3 in the corner portion 2 a. In this case, since the connection between the reinforcing rib 2 and the leg 3 is linear in the corner portion 2a, the machining cost of the mold can be reduced accordingly.
In the case of the present invention, the reinforcing rib 2 may be in a state where a part of the frame shape is not cut and the entire circumference is not connected as long as the moldability is not impaired.
Further, the leg 3 may be formed by interposing additional pieces in parallel between the pair of plate pieces 3a.

1 底
2 補強用リブ
2a コーナー部
3 脚
L 線
1 Bottom 2 Reinforcing Rib 2a Corner 3 Leg L Line

Claims (4)

底の裏面に補強用リブが下方から見て枠形に形成され、この補強用リブの外側の底の裏面に、補強用リブに接して脚が補強用リブと共に底に一体成形されている浴槽の脚構造であって、上記の脚が、底の隅の補強用リブのコーナー部に、下方から見てコーナー部の斜め外側方に延ばされて形成されていることを特徴とする浴槽の脚構造。   Reinforcing ribs are formed in a frame shape on the back surface of the bottom when viewed from below, and the legs are integrally formed on the bottom together with the reinforcing ribs on the back surface of the bottom outside the reinforcing ribs. The above-mentioned leg is formed in the corner portion of the reinforcing rib at the bottom corner so as to extend obliquely outward of the corner portion when viewed from below. Leg structure. 請求項1記載の浴槽の脚構造であって、補強用リブが、四角形の枠形に形成され、コーナー部が湾曲されていることを特徴とする浴槽の脚構造。   The bathtub leg structure according to claim 1, wherein the reinforcing rib is formed in a rectangular frame shape, and the corner portion is curved. 請求項1又は2記載の浴槽の脚構造であって、補強用リブが、コーナー部において脚と略同じ高さに形成されていることを特徴とする浴槽の脚構造。   3. The bathtub leg structure according to claim 1, wherein the reinforcing rib is formed at a corner portion at substantially the same height as the leg. 4. 請求項1乃至3の何れかに記載の浴槽の脚構造であって、脚が略平行で対になった板片で形成されていることを特徴とする浴槽の脚構造。   The bathtub leg structure according to any one of claims 1 to 3, wherein the legs are formed of plate pieces that are substantially parallel and paired.
JP2009197593A 2009-08-28 2009-08-28 Bathtub leg structure Expired - Fee Related JP5375444B2 (en)

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JPS5115634Y2 (en) * 1972-10-18 1976-04-24
JPS5645507Y2 (en) * 1975-02-20 1981-10-23
JPH11137468A (en) * 1997-11-10 1999-05-25 Sekisui Chem Co Ltd Leg part structure for bathtub made of frp

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