JP4016339B2

JP4016339B2 - Bathroom joint material

Info

Publication number: JP4016339B2
Application number: JP2003159203A
Authority: JP
Inventors: 浩明武市; 雄二山口
Original assignee: 株式会社日立ハウステック
Priority date: 2003-06-04
Filing date: 2003-06-04
Publication date: 2007-12-05
Anticipated expiration: 2023-06-04
Also published as: JP2004357903A

Description

【０００１】
【発明の属する技術分野】
本発明は、浴室の目地材に関し、更に詳しくは、浴室や浴室ユニットにおける浴槽と浴室内壁との間隙等を塞ぐために好適な浴室の目地材に関するものである。
【０００２】
【従来の技術】
浴室や浴室ユニットにおける浴槽と浴室内壁との間隙を塞ぐ方法としては、従来から、浴槽と浴室内壁との間隙にシリコン材などのコーキング材を用いて塞ぐ方法が知られている。
【０００３】
しかし、この方法は、施工に手間がかかる、充填後の養生期間が必要である、カビ等が生えて黒っぽく汚くなる等の問題もあるので、最近では、合成樹脂を材料にして成形・加工した目地材も提案されている（特許文献１参照）。
【０００４】
【特許文献１】
特開２００２-２９１６４２号公報
【０００５】
【発明が解決しようとする課題】
しかし、上記目地材は、目地材の垂下部が真っ直ぐではなく下部が浴槽側へ傾斜しているので、浴槽と浴室内壁との間隙に差し込みにくく作業しずらい。また、目地材の垂下部の長さを浴槽上縁のフランジ部長さにピッタリ合わせて、垂下部先端に設けた係合部を浴槽上縁フランジ部下端に引っ掛ける構造であるので、所定の形状の（１種類の）浴槽にしか対応できない難点がある。
本発明の一つの目的は、浴槽と浴室内壁との間隙に差し込みやすく、作業しやすい目地材を提供することである。また、本発明の別の目的は、所定の１種類の形状の浴槽ばかりではなく、他の形状の浴槽であっても、浴槽と浴室内壁との間隙処理用として使える目地材を提供することである。
【０００６】
【課題を解決するための手段】
上記課題を達成するために、本発明では、次の構成をとった。
即ち、本発明は、略水平に細長い軟質樹脂製の頂部と、前記頂部の幅方向の中央部か中央部よりも片側に偏った部位から垂下する略垂直平面状の硬質樹脂製の基部とで構成される断面略Ｔ字状の、浴槽と浴室内壁との間隙を塞ぐための一体構成の長尺の目地材であって、浴槽上縁側面に当接する側の基部に、軟質樹脂製の水平縞状凹凸部が長手方向に沿って付設されており、この水平縞状凹凸部よりも下の位置の基部両面に、軟質樹脂製の上向きヒレ部が長手方向に沿って各々付設され、基部の先端部には硬質樹脂製の係合部が延設されている目地材である。
【０００９】
【発明の実施の形態】
以下、添付図面を参照しながら、本発明を更に具体的に説明する。
図１は、参考例に係る目地材の一例であり、図２は図１の縦断面図（Ａ）を拡大したものである。図１、図２に示すように、目地材１は、横に長い長尺物で、その縦断面形状は概ね「逆１の字」状（あるいは、「Ｊの字」状）である。すなわち、目地材１は、断面略一もしくはノの字（三日月状又はツルハシの先の金属部分状）の略水平な頂部２と、その頂部２の中央寄り（頂部２の中央部もしくはやや浴室内壁寄り）から下方へ垂下して先端には爪状の係合部４（浴槽上縁のフランジ下端１２ａに引っ掛ける）がある基部３とで成り、更には、基部３の浴槽側の面には上向きヒレ部５ａ，５ｂが付設され、その反対面（浴室内壁側）にも、上向きヒレ部６が付設されている。
【００１０】
目地材１の材質は、基部３とその下部先端の爪状の係合部４については硬質樹脂を用い、ハッチングで示した頂部２と、上向きのヒレ部５ａ、５ｂ及びその反対面の上向きのヒレ部６とについては、軟質樹脂を用いている。
硬質樹脂としては、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、硬質ポリ塩化ビニル樹脂等の熱可塑性樹脂を用いることができ、軟質樹脂としては、軟質ポリ塩化ビニル樹脂、ポリオレフィン系エラストマー（ＴＰＯ）等の熱可塑性樹脂もしくは熱可塑性エラストマーを用いることができる。中でも、硬質樹脂がＰＰで、軟質樹脂がＴＰＯの組合せは、環境にやさしく、目地材と壁とが擦れても耳障りな音鳴りがしない、等の理由で好ましい。
上記材質の樹脂の押出し成形品（同時成形）を、必要に応じ、切断・加工して、目地材を製造する。
【００１１】
図３は参考例における目地材１の使用（打込み）を説明するための斜視図であり、図４はその使用（打込み）前後の断面図である。浴槽を載置・固定する三方の浴室壁には、予め浴槽（上縁フランジ部）を挟み込んでこれを固定するための挟持金具１３が取り付けられている。浴槽の上縁フランジ部を挟持金具１３で挟み込むようにして、浴槽を所定の位置に載置・固定したあと、浴槽の長辺側長さ及び短辺側長さに合わせて切断した目地材を、浴槽と浴室内壁との間隙に差し込み、これを打棒でほぼ真上から打ち込む。そうすると、目地材の先端の係合部４が、浴槽上縁のフランジ部下端１２ａで係合する。一旦係合すると、目地材は上方向へ浮き上がらない。また、目地材１の基部３の両面に形成した上向きヒレ部（浴槽側）５ａ、５ｂ及び上向きヒレ部（浴室内壁側）６は、浴槽フランジ部と浴室内壁とで挟まれて変形し、目地材１の基部３は、浴槽フランジ部と浴室内壁の両方から圧迫される形となり、水平方向（図４では左右方向）にも固定されるとともに、ヒレ部５ａ，５ｂと浴槽上縁（フランジ部）１２との間、及び、ヒレ部６と浴室内壁との間が密着し、その間に垂直方向の抵抗（摩擦）が生じ、これによっても目地材は浮き上がりにくく、また、止水効果もある。また、目地材１の頂部２は軟質樹脂でできているので、これが浴槽上縁及び浴室内壁に柔軟に密着し、間隙への水の侵入を防止する。
【００１２】
なお、長辺側目地材と短辺側目地材が突き当たるコーナー部では、平面視Ｌ字形のコーナーキャップ（図示せず）を差し込み、間隙部を体裁良く埋めて止水することができる。コーナーキャップを使わないで、長辺側目地材と短辺側目地材とが重なる一方の頂部（軟質樹脂製）を他方の頂部に重ねて止水することもできる。
また、浴槽手前側（洗場側）では、浴槽上縁面の曲がり（アール）形状に合わせて端部をアール状に加工した目地材（図示せず）を用いれば浴槽手前側（洗場側）の間隙部も体裁良く止水できる。
【００１３】
図５は、本発明に係る目地材１４の例である。浴槽上縁側面に当接する側で、係合部４が突き出る側の基部３（片面）に、ヒレ部５ｂを設ける代わりに、軟質樹脂製の水平縞状凹凸部７を長手方向に沿って付設させている。水平縞状凹凸部７の断面形状は、浴槽上縁側面と突き当たったときに、抵抗（摩擦）が大きくなるような形状、例えば、図５や図６に示す、水平方向に長い山及び谷が垂直方向で繰り返す構造（横縞状）が好ましい。
【００１４】
図７は、上記第二発明の目地材１４が、２種類（イ、ロ）の浴槽で対応できることを説明する図（断面図）である。
目地材１４の係合部４に引っ掛かる適当な部位が、浴槽上縁１１のフランジ部に存在しない浴槽を浴室に据える場合の、浴槽と浴室内壁との間隙に第二発明の目地材１４を打ち込んだ場合は、水平縞状凹凸部７が付いた部位の基部３が、浴槽上縁（フランジ部）と浴室内壁の両方から押されるように圧迫され、水平縞状凹凸部７と浴槽上縁側面部との間に抵抗（摩擦）が生じ、それによって目地材１４の浮き上りを阻止し、また、止水効果もある（図７（ロ）参照）。
【００１５】
目地材１４の係合部４に引っ掛かる適当な部位が、浴槽上縁１１のフランジ部に存在する浴槽を浴室に据える場合の、浴槽と浴室内壁との間隙の処理及び作用は、上記第一発明の目地材１の場合とほぼ同様である（図７（イ）参照）。
【００１６】
【発明の効果】
本発明に係る目地材は、基部下端部の係合部に引っ掛かる適当な部位が浴槽（上縁フランジ部）側に存在する浴槽に対して使えるばかりでなく、基部下端部の係合部に引っ掛かる適当な部位がない他の形状の浴槽に対しても、浴槽と浴室内壁との間隙処理用として使える。
また、本発明に係る目地材は、いずれも乾式であるので、必要なときに直ぐに使うことができる。また、（シリコンコーキング材のようには）頂部が凹まないので、水が溜まりにくく、汚れにくく、例え汚れたとしても拭き取りやすい。作業に熟練していなくとも、簡単に間隙を処理することができ、意匠性も高い。また、浴槽の色に合わせて、頂部の色も変えやすい。
【図面の簡単な説明】
【図１】参考例の目地材の縦断面図（Ａ）と正面図（Ｂ）。
【図２】図１の縦断面図（Ａ）の拡大図。斜線部は軟質樹脂製、その他は硬質樹脂製を示す。
【図３】目地材の使用（打込み）を説明する斜視図。
【図４】目地材の使用（打込み）前後を説明する断面図。
【図５】本発明の目地材の縦断面図（拡大図）。斜線部は軟質樹脂製、その他は硬質樹脂製を示す。
【図６】３例（Ａ、Ｂ、Ｃ）の水平縞状凹凸部の断面形状。
【図７】本発明の目地材が、２種類（イ、ロ）の浴槽に対応できることを説明する断面図。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bathroom joint material, and more particularly to a bathroom joint material suitable for closing a gap between a bathtub and a bathroom inner wall in a bathroom or a bathroom unit.
[0002]
[Prior art]
As a method for closing a gap between a bathtub and a bathroom inner wall in a bathroom or a bathroom unit, a method of closing a gap between the bathtub and the bathroom inner wall using a caulking material such as a silicon material is conventionally known.
[0003]
However, this method is troublesome in construction, requires a curing period after filling, has molds, etc., and becomes dark and dirty, so recently it has been molded and processed using synthetic resin as a material. Joint materials have also been proposed (see Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-291642
[Problems to be solved by the invention]
However, the joint material is difficult to work because it is difficult to insert the joint material into the gap between the bathtub and the inner wall of the bathroom because the hanging part of the joint material is not straight but the lower part is inclined toward the bathtub. In addition, the length of the hanging portion of the joint material is perfectly matched to the flange length of the bathtub upper edge, and the engaging portion provided at the tip of the hanging portion is hooked to the lower end of the bathtub upper edge flange portion. There is a difficulty that can only be accommodated in (one type) bathtub.
One object of the present invention is to provide a joint material that can be easily inserted into a gap between a bathtub and a bathroom inner wall and is easy to work with. Another object of the present invention is to provide a joint material that can be used not only for a predetermined type of bathtub but also for other types of bathtubs for treating the gap between the bathtub and the inner wall of the bathroom. is there.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration.
That is, the present invention comprises a top portion made of a soft resin that is substantially horizontally elongated and a base portion made of a hard resin having a substantially vertical flat surface that hangs down from a central portion in the width direction of the top portion or a portion biased to one side of the central portion. It is a long joint material having a substantially T-shaped cross section, which is an integral structure for closing the gap between the bathtub and the inner wall of the bathroom. Striped irregularities are provided along the longitudinal direction, and soft resin upward fins are respectively provided along the longitudinal direction on both sides of the base below the horizontal striped irregularities. This is a joint material in which a hard resin engaging portion is extended at the tip.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described more specifically with reference to the accompanying drawings.
FIG. 1 is an example of a joint material according to a reference example , and FIG. 2 is an enlarged view of the longitudinal sectional view (A) of FIG. As shown in FIG. 1 and FIG. 2, the joint material 1 is a long horizontally long object, and its vertical cross-sectional shape is generally “inverted 1-shaped” (or “J-shaped”). That is, the joint material 1 has a substantially horizontal top portion 2 having a substantially cross-sectional or square shape (a crescent or metal tip), and a portion closer to the center of the top portion 2 (the central portion of the top portion 2 or a bathroom inner wall). The base 3 has a claw-like engagement portion 4 (hangs on the flange lower end 12a of the upper edge of the bathtub) at the tip, and further upwards on the surface of the base 3 on the bathtub side. Fins 5a and 5b are provided, and an upward fin 6 is also provided on the opposite surface (inner bathroom wall side).
[0010]
The joint material 1 is made of hard resin for the base portion 3 and the claw-like engagement portion 4 at the lower end thereof, and the top portion 2 indicated by hatching, the upward fin portions 5a and 5b, and the opposite surface upward. For the fin portion 6, a soft resin is used.
As the hard resin, thermoplastic resins such as polypropylene (PP), polyethylene (PE), and hard polyvinyl chloride resin can be used. As the soft resin, soft polyvinyl chloride resin, polyolefin elastomer (TPO) and the like can be used. A thermoplastic resin or a thermoplastic elastomer can be used. Among them, the combination of the hard resin being PP and the soft resin being TPO is preferable because it is environmentally friendly and does not cause annoying noise even when the joint material and the wall are rubbed.
A joint material is manufactured by cutting and processing the extruded product (simultaneous molding) of the resin of the above material as necessary.
[0011]
FIG. 3 is a perspective view for explaining the use (driving) of the joint material 1 in the reference example , and FIG. 4 is a sectional view before and after the use (driving). On the three bathroom walls on which the bathtub is placed and fixed, a holding metal fitting 13 for holding the bathtub (upper flange portion) in advance and fixing it is attached. After the bathtub is placed and fixed at a predetermined position so that the upper edge flange portion of the bathtub is sandwiched by the holding metal fitting 13, the joint material cut according to the long side length and the short side length of the bathtub is used. Insert it into the gap between the bathtub and the inner wall of the bathroom and drive it from the top with a striking stick. If it does so, the engaging part 4 of the front-end | tip of a joint material will engage with the flange part lower end 12a of the bathtub upper edge. Once engaged, the joint material does not float upward. Moreover, the upward fin parts (bathtub side) 5a, 5b and the upward fin part (bathroom inner wall side) 6 formed on both surfaces of the base part 3 of the joint material 1 are sandwiched between the bathtub flange part and the bathroom inner wall and deformed. The base portion 3 of the material 1 is pressed from both the bathtub flange portion and the bathroom inner wall, and is fixed in the horizontal direction (left and right direction in FIG. 4), and the fin portions 5a and 5b and the bathtub upper edge (flange portion). ) 12 and between the fin portion 6 and the bathroom inner wall, and a vertical resistance (friction) is generated between them, which also prevents the joint material from floating and also has a water-stopping effect. Moreover, since the top part 2 of the joint material 1 is made of a soft resin, it adheres flexibly to the upper edge of the bathtub and the inner wall of the bathroom, and prevents water from entering the gap.
[0012]
In addition, at the corner portion where the long side joint material and the short side joint material abut, an L-shaped corner cap (not shown) in a plan view can be inserted, and the gap portion can be filled with good appearance to stop water. Without using a corner cap, one top portion (made of soft resin) in which the long side joint material and the short side joint material overlap each other can be stacked on the other top portion to stop water.
In addition, on the near side of the bathtub (washing side), if a joint material (not shown) whose end is rounded to match the curved shape of the upper edge of the bathtub is used (the washing side) ) Can also stop the water well.
[0013]
FIG. 5 is an example of the joint material 14 according to the present invention. Instead of providing a fin portion 5b on the base 3 (one side) on the side where the engaging portion 4 protrudes on the side in contact with the bathtub upper edge side surface, a horizontal striped uneven portion 7 made of soft resin is provided along the longitudinal direction. I am letting. The cross-sectional shape of the horizontal stripe-shaped uneven portion 7 is a shape that increases resistance (friction) when it abuts against the side surface of the upper edge of the bathtub, for example, as shown in FIG. 5 and FIG. A structure (horizontal stripe shape) that repeats in the vertical direction is preferable.
[0014]
FIG. 7 is a diagram (cross-sectional view) for explaining that the joint material 14 of the second invention can be handled by two kinds of (a, b) bathtubs.
The joint material 14 of the second invention is driven into the gap between the bathtub and the inner wall of the bathroom when an appropriate part that is caught by the engaging part 4 of the joint material 14 is installed in the bathroom. In this case, the base 3 of the portion with the horizontal stripe uneven portion 7 is pressed so as to be pressed from both the bathtub upper edge (flange portion) and the bathroom inner wall, and the horizontal stripe uneven portion 7 and the bathtub upper edge side surface portion. Resistance (friction) is generated between them, thereby preventing the joint material 14 from being lifted, and also has a water-stopping effect (see FIG. 7B).
[0015]
The processing and action of the gap between the bathtub and the inner wall of the bathroom when the appropriate part that is caught by the engaging part 4 of the joint material 14 is installed in the bathroom at the flange part of the bathtub upper edge 11 is the first invention described above. This is almost the same as the case of the joint material 1 (see FIG. 7A).
[0016]
【The invention's effect】
The joint material according to the present invention can be used not only for a bathtub in which an appropriate portion hooked to the engaging portion of the lower end portion of the base portion is present on the bathtub (upper flange portion) side, but also to be hooked on the engaging portion of the lower end portion of the base portion. It can be used for the clearance treatment between the bathtub and the inner wall of the bathroom even for other shapes of bathtubs that do not have appropriate sites.
Moreover, since all the joint materials according to the present invention are dry, they can be used immediately when necessary. In addition, since the top portion is not recessed (like silicon caulking material), it is difficult for water to accumulate, it is difficult to get dirty, and even if it gets dirty, it is easy to wipe off. Even if you are not skilled in the work, you can easily handle the gap and the design is high. In addition, the color of the top is easy to change according to the color of the bathtub.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view (A) and a front view (B) of a joint material of a reference example .
2 is an enlarged view of a longitudinal sectional view (A) of FIG. The hatched portion is made of soft resin, and the others are made of hard resin.
FIG. 3 is a perspective view illustrating use (driving) of a joint material.
FIG. 4 is a cross-sectional view illustrating before and after use (driving) of a joint material.
FIG. 5 is a longitudinal sectional view (enlarged view) of the joint material of the present invention. The hatched portion is made of soft resin, and the others are made of hard resin.
FIG. 6 is a cross-sectional shape of a horizontal stripe-shaped uneven portion of three examples (A, B, C).
FIG. 7 is a cross-sectional view illustrating that the joint material of the present invention can correspond to two types of (a, b) bathtubs.

Claims

A cross-section having a substantially vertical flat hard resin base portion that hangs from a top portion made of a soft resin that is substantially horizontally elongated and a central portion in the width direction of the top portion or a portion that is biased to one side of the central portion. This is a long joint material with an integrated structure for closing the gap between the bathtub and the inner wall of the bathroom, and the horizontal stripe-shaped irregularities made of soft resin are elongated at the base that contacts the upper edge of the bathtub. An upward fin made of soft resin is attached along the longitudinal direction on both sides of the base at a position below the horizontal stripe-shaped irregularities, and a hard resin is attached to the tip of the base. A joint material with extended engagement parts .