【０００１】
【発明の属する技術分野】
本発明は、たて樋の内周面に装着してたて樋同士を接続するための継手に関する。
【０００２】
【従来の技術】
たて樋の内周面に装着してたて樋同士を接続する継手として、筒状の継手体の上側を水上側挿入筒部となし、同下側を水下側挿入筒部となし、該水下側挿入筒部の先端部分に先細形状となったテーパー部を形成し、水上側挿入筒部の先端部分の外形寸法を接続される竪管の内径寸法に略合致せしめると共に、同水上側挿入筒部の中程外周に接着剤溜凹溝を形成してなる竪樋継手が知られている（例えば、特許文献１参照。）。
【０００３】
しかしながら、この継手は、継手の中程に設けられる鍔状部がたて樋の接合部から露出するために、美的外観が悪いという問題点がある。
【０００４】
別に、金属製の筒体の中程に、外方へ凸曲して該凸曲した部分を圧潰して成形した鍔状部を設け、同筒体の該鍔状部の両側を接続用挿入筒部となし、該接続用筒部の中程に内方へ凹曲した溝状部を設け、該溝状部に弾性材でなる防水リングを嵌着してなる竪樋継手が知られている（例えば、特許文献２参照。）。
【０００５】
しかしながら、この継手は、継手の中程に設けられる鍔状部がたて樋の接合部から露出するために美的外観が悪くなるうえ、経年的に防水リングに用いられる弾性材の劣化が起こり、そのために水漏れが発生し易いという問題点がある。
【０００６】
【特許文献１】特開平５−２４８０４８号公報
【特許文献２】特開平４−３７１６４８号公報
【０００７】
【発明が解決しようとする課題】
本発明は、たて樋同士を接続した時に、その接続部から継手が見えず、外観がよい接続ができ、かつ水漏れの恐れが少ないたて樋用継手を提供する目的でなされたものである。
【０００８】
【課題を解決するための手段】
上記課題を解決するための本発明の請求項１記載のたて樋用継手は、上側が上流側挿入接続部とされ、下側の外周面に雄ねじが設けられた上側継手体と、内周面に上記雄ねじに螺合する雌ねじが設けられ、外周面が下流側挿入接続部とされた下側継手体とからなることを特徴とする。
【０００９】
本発明においては、上側継手体と下側継手体とは互いに螺合されて一体化し、一体化された継手は、そのいずれの外周面も、たて樋内周面に密着して固定されるものである。また、本発明においては、上側継手体又は下側継手体は、その材質は特に限定されるものではない。
【００１０】
本発明においては、上側継手体の上流側挿入接続部は、上流側のたて樋内周面に挿入装着されて密着し、接続固定される。接続方法は、上側継手体とたて樋とのそれぞれの材質によって、通常適用される接続方法から適宜選択すれば良く、限定されることはない。例えば、上側継手体もたて樋も塩化ビニル樹脂であれば、塩化ビニル樹脂用接着剤で接着接続されれば良く、どちらも繊維等を併用した複合樹脂であれば、接着又は融着等の方法で接続すればよい。また、いずれもステンレススチール、銅等の金属であれば、例えば接着以外に溶接等の方法をとることもできる。なお、下側継手体の下流側挿入接続部と下流側のたて樋上部の内周面との接続も同様である。
【００１１】
上側継手体の下側の外周面には雄ねじが設けられ、一方、下側継手体の内周面には、これに螺合する雌ねじが設けられている。上側の上流側挿入接続部の、下側の螺旋条部開始位置における外径は、上流側たて樋の外径と略同じとされる。従って、上側継手体を上流側のたて樋内に配置する時に、たて樋端部と雄ねじ部とを一致させ易くなる。
【００１２】
本発明においては、上記上側継手体の上流側挿入接続部の外径を、上流側のたて樋の内径と略一致せしめると共に、その先端部外側を先細形状のテーパー部とすることにより、上側継手体をたて樋内に挿入し易く、接続作業が楽になると共に、接着等による接続固定が確実に行われやすくなる。
【００１３】
また、上記下側継手体の下流側挿入接続部の外径を、下流側のたて樋の内径と略一致せしめると共に、その先端部外側を先細形状のテーパー部とすることにより、下側継手体をたて樋内に挿入し易く、接続作業が楽になると共に、接着等による接続固定が確実に行われやすくなる。
【００１４】
更に本発明においては、上記上側継手体の上流側挿入接続部の外径を上流側のたて樋の内径と略一致せしめると共に、その先端部外側を先細形状のテーパー部とし、上記下側継手体の下流側挿入接続部の外径を下流側のたて樋の内径と略一致せしめると共に、その先端部外側を先細形状のテーパー部とすることにより、上側継手体をたて樋内に挿入し易く、同時に下側継手体をたて樋内に挿入し易く、接続作業がさらに楽になると共に、接着等による接続固定が確実に行われ易くなる。
【００１５】
（作用）
本発明は、上流側のたて樋と上側継手体、及び下流側のたて樋と下側継手体とが、いずれもたて樋内に挿入され、例えば接着等で接続され、しかもそれらが螺合により接続されるので、上側継手体と下側継手体とがたて樋内部に収納され、接続後の接続部には、上下のたて樋同士の突き合わせ線のみが見える。従って接続部の外観が良くなる。しかも、通常のたて樋同士の接続時と同じく、継手本体とたて樋とは接着等により接続され、パッキン等を用いないので、経年に渡り水漏れ等の恐れが少ない。
【００１６】
【発明の実施の形態】
次に図面を参照して本発明を説明する。図１は、本発明のたて樋用継手の一例を示す半断面図である。
【００１７】
本例で示すたて樋用継ぎ手１は、塩化ビニル樹脂製のもので説明する。たて樋用継手１は、円筒状の上側継手体２と円筒状の下側継手体３の二つの部品で構成されている。上側継手体２は、上側が上流側挿入接続部２１とされ、下側の外周面に雄ねじ２２が設けられている。下側継手体３は、内周面に上記雄ねじ２２に螺合する雌ねじ３２が設けられ、外周面が下流側挿入接続部３１とされている。
【００１８】
上側継手体２の上流側挿入接続部２１の外周面は、上流側のたて樋Ｕの内径と略同じとされていても、先細りのテーパー面とされて上流側のたて樋Ｕ内に挿入し易くされていても良い。テーパー面とした場合には、そのテーパー面下端部の外径は、接続される上流側のたて樋Ｕの内径と略同じとされ、上側継手体２をたて樋Ｕ内に挿入した時に、たて樋Ｕの下端部と雌ねじ３２の上端部とが一致しているかどうかが判定し易くなっている。
【００１９】
下側継手体３の下流側挿入接続部３１の外周面についても、同様にテーパー面とされていても良く、上側継手体２の上流側挿入接続部２１の外周面と、下側継手体３の下流側挿入接続部３１の外周面との、いずれもがテーパー面とされていても良い。
【００２０】
上側継手体２１と上流側のたて樋Ｕとの接続方法は、それぞれの材質によって適宜選択されれば良く、例えば、いずれも塩化ビニル樹脂等で作成されている場合では、塩化ビニル樹脂用の接着剤等で接着接続されれば良い。
【００２１】
下側継手体３の長さは、上記上側継手体２の雄ねじ２２の長さより長くされ、その内周面に、上側継手体２の外周面に設けられた雄ねじ２２に螺合する雌ねじ３２が設けられている。雌ねじ３２の設けられる下側継手体３の内周面長さは、上側継手体２の雄ねじ２２の長さより長くされていれば良く、下側継手体３の長さが長い場合は、必ずしも下側継手体３の内周面全てに渡って設けられている必要はない。しかしながら、下側継手体３の外径が均一である場合には、施工を容易にするために下側継手体２を上下逆にして施工されることを考慮して、内周面全面渡って雌ねじ３２を設けても良い。
【００２２】
下側継手体３と下流側のたて樋Ｌとの挿入接続法は、上側継手体２と上流側のたて樋Ｕとの場合と同じであるから、説明を省略する。
【００２３】
図２は本発明のたて樋用継手１を用いてたて樋Ｕ、Ｌ同士を接続する、接続手順を示す説明図である。本例では、一例として、塩化ビニル樹脂製のたて樋用継手を用いて塩化ビニル樹脂製たて樋を接続する場合を説明するが、これが全てではないことはいうまでもない。
【００２４】
まず、図２（ａ）のように、上流側のたて樋Ｕの上端部と下流側のたて樋Ｌの上端部とは、それぞれ管軸と直角となるように切断され、互いに端部同士を突き合わせた時に、突き合わせ部が線状になるようしておく。次いで、上側継手体２を上流側のたて樋Ｕ内に挿入し、例えば接着剤等を用いて接着接続する。この時、接着剤は、上流側のたて樋Ｕ内と上側継手体のテーパー太部以外のテーパー部とに塗布して挿入すれば、誤って雄ねじ２２に接着剤が付着することが防止される。
【００２５】
雄ねじ２２が、上流側のたて樋Ｕの下端部と一致、又は僅かに上流側のたて樋Ｕ内に浸入した位置で、上側継手体２の上流側のたて樋Ｕ内への挿入を停止し、雄ねじ２２が上流側のたて樋Ｕの下端部から突設するようにする。
【００２６】
図２（ｂ）のように、下側継手体３も、上側継手体２と同様にして、下流側のたて樋Ｌ内に接着剤等を用いて接着接続する、この時、下側継手体３が下流側のたて樋Ｌの上端部から突出しないように配置する。こうして、下流側のたて樋Ｌの上側端部内に雌ねじ３２があるようにする。
【００２７】
接着剤が固化後、図２（ｃ）のように、下流側のたて樋Ｌの上端部の雌ねじ３２を、上流側のたて樋Ｕの下端部に突設された雄ねじ２２に噛み合わせ、下流側のたて樋Ｌを回転させながら上流側のたて樋Ｕに螺合させて接続する。この時、螺旋部に接着剤等を塗布して螺合し、接続を確実にしても良い。
【００２８】
上流側のたて樋Ｕの下端部と下流側のたて樋Ｌの上端部とが接して、それ以上螺合できなくなったら回転を停止し、たて樋Ｕ、Ｌ同士の接続が完了する。
【００２９】
【発明の効果】
以上の通りであるから、本発明のたて樋用継手は、たて樋同士を接続した時に、その接続部から継手が見えず、外観がよい接続ができ、かつ水漏れの恐れが少ないたて樋用継手となるのである。
【図面の簡単な説明】
【図１】本発明のたて樋用継手の一例を示す半断面図である。
【図２】本発明のたて樋用継手を用いてたて樋を接続する接続手順の一例を示す説明図である。
【符号の説明】
１ たて樋用継手
２ 上側継手体
２１ 上流側挿入接続部
２２ 雄ねじ
３ 下側継手体
３１ 下流側挿入接続部
３２ 雌ねじ
Ｕ、Ｌ たて樋[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a joint for connecting vertical gutters mounted on the inner peripheral surface of a vertical gutter.
[0002]
[Prior art]
As a joint for connecting the vertical gutters mounted on the inner peripheral surface of the vertical gutter, the upper side of the tubular joint body is defined as a water-side insertion cylinder, and the lower side is defined as a water-side insertion cylinder, A tapered portion having a tapered shape is formed at the distal end portion of the underwater insertion tube portion so that the outer dimensions of the distal portion of the underwater insertion tube portion substantially match the inner diameter of the vertical pipe to be connected, and 2. Description of the Related Art A downspout joint in which an adhesive reservoir groove is formed in the middle outer periphery of a side insertion tube portion is known (for example, see Patent Document 1).
[0003]
However, this joint has a problem that the aesthetic appearance is poor because the flange portion provided in the middle of the joint is exposed from the joint of the vertical gutter.
[0004]
Separately, in the middle of the metal cylinder, there is provided a flange portion formed by bulging outward and crushing the convex portion, and inserting both sides of the flange portion of the same cylinder for connection. There is known a downspout joint formed by forming a groove portion inwardly bent in the middle of the connection tube portion and forming a waterproof ring made of an elastic material in the groove portion. (For example, see Patent Document 2).
[0005]
However, in this joint, the aesthetic appearance is deteriorated because the flange portion provided in the middle of the joint is exposed from the joint portion of the vertical gutter, and the elastic material used for the waterproof ring deteriorates over time, Therefore, there is a problem that water leakage easily occurs.
[0006]
[Patent Document 1] JP-A-5-248048 [Patent Document 2] JP-A-4-371648
[Problems to be solved by the invention]
The present invention has been made for the purpose of providing a vertical gutter joint, in which when the vertical gutters are connected to each other, the joint is not visible from the connection portion, a good appearance connection can be made, and there is little possibility of water leakage. is there.
[0008]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a vertical gutter coupling according to the present invention, wherein the upper coupling body has an upper-side insertion connection portion, and a male screw is provided on a lower outer peripheral surface; The surface is provided with a female screw to be screwed with the male screw, and the outer peripheral surface is formed of a lower joint body serving as a downstream insertion connection portion.
[0009]
In the present invention, the upper joint body and the lower joint body are screwed and integrated with each other, and the integrated joint is fixed in a manner such that any outer peripheral surface thereof is in close contact with the inner peripheral surface of the vertical gutter. Things. In the present invention, the material of the upper joint body or the lower joint body is not particularly limited.
[0010]
In the present invention, the upstream insertion connection portion of the upper joint body is inserted and mounted on the inner peripheral surface of the vertical gutter on the upstream side, and is closely connected and fixed. The connection method may be appropriately selected from commonly used connection methods depending on the respective materials of the upper joint body and the vertical gutter, and is not limited. For example, if both the upper joint body and the vertical gutter are vinyl chloride resin, they may be bonded and connected with an adhesive for vinyl chloride resin. Just connect by the method. In addition, as long as each is a metal such as stainless steel or copper, for example, a method such as welding may be used instead of bonding. Note that the same applies to the connection between the downstream insertion connection portion of the lower joint body and the inner peripheral surface of the upper portion of the vertical gutter on the downstream side.
[0011]
A male screw is provided on the outer peripheral surface on the lower side of the upper joint body, while a female screw is screwed on the inner peripheral surface of the lower joint body. The outer diameter of the upper upstream insertion connection at the lower spiral strip start position is substantially the same as the outer diameter of the upstream vertical gutter. Therefore, when arranging the upper joint body in the upstream vertical gutter, it is easy to match the vertical gutter end with the male screw portion.
[0012]
In the present invention, the outer diameter of the upstream insertion connection portion of the upper joint body is made substantially equal to the inner diameter of the vertical gutter on the upstream side, and the outer end of the tip portion is formed into a tapered portion having a tapered shape, so that It is easy to insert the joint body into the vertical gutter, so that the connection work is facilitated, and the connection and fixation by adhesion or the like are easily performed.
[0013]
In addition, the outer diameter of the downstream insertion connection portion of the lower joint body is made substantially equal to the inner diameter of the downstream vertical gutter, and the outer end of the lower end is formed into a tapered portion having a tapered shape, whereby the lower joint is formed. The body can be easily inserted into the gutter, making the connection work easier, and the connection and fixing by bonding or the like can be easily performed.
[0014]
Further, in the present invention, the outer diameter of the upstream insertion connection portion of the upper joint body is made substantially coincident with the inner diameter of the vertical vertical gutter, and the outer end of the tip portion is a tapered portion having a tapered shape. The upper joint body is inserted into the vertical gutter by making the outer diameter of the downstream insertion connection part of the body substantially match the inner diameter of the vertical gutter on the downstream side, and making the outer end of the tip part tapered. At the same time, the lower joint body is easily inserted into the vertical gutter, so that the connection operation is further facilitated, and the connection and fixing by adhesion or the like are easily performed.
[0015]
(Action)
According to the present invention, an upstream vertical gutter and an upper joint body, and a downstream vertical gutter and a lower joint body are all inserted into a vertical gutter and connected by, for example, bonding, and the like. Since they are connected by screwing, the upper joint body and the lower joint body are housed inside the vertical gutter, and only the butting line between the upper and lower vertical gutters is visible at the connected portion after the connection. Therefore, the appearance of the connection portion is improved. In addition, the joint body and the vertical gutter are connected by bonding or the like and the packing or the like is not used as in the case of the connection between the normal vertical gutters.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, the present invention will be described with reference to the drawings. FIG. 1 is a half sectional view showing an example of a vertical gutter joint of the present invention.
[0017]
The vertical gutter joint 1 shown in the present embodiment will be described as being made of a vinyl chloride resin. The vertical gutter joint 1 is composed of two parts, a cylindrical upper joint body 2 and a cylindrical lower joint body 3. The upper joint body 2 has an upstream insertion connection portion 21 on the upper side, and a male screw 22 provided on the lower outer peripheral surface. The lower joint body 3 is provided with a female screw 32 screwed to the male screw 22 on the inner peripheral surface, and the outer peripheral surface is a downstream insertion connection portion 31.
[0018]
Even when the outer peripheral surface of the upstream insertion connection portion 21 of the upper joint body 2 is substantially the same as the inner diameter of the upstream vertical gutter U, the outer peripheral surface is formed into a tapered tapered surface and is formed inside the upstream vertical gutter U. It may be easy to insert. In the case of a tapered surface, the outer diameter of the lower end of the tapered surface is substantially the same as the inner diameter of the upstream vertical gutter U to be connected, and when the upper joint body 2 is inserted into the vertical gutter U, It is easy to determine whether the lower end of the vertical gutter U and the upper end of the female screw 32 match.
[0019]
The outer peripheral surface of the downstream insertion connection part 31 of the lower joint body 3 may be similarly tapered, and the outer peripheral surface of the upstream insertion connection part 21 of the upper joint body 2 and the lower joint body 3 Both of the outer peripheral surface of the downstream insertion connecting portion 31 may be a tapered surface.
[0020]
The connection method between the upper joint body 21 and the upstream vertical gutter U may be appropriately selected depending on the respective materials. For example, when both are made of a vinyl chloride resin or the like, a connection method for the vinyl chloride resin is used. What is necessary is just to adhesively connect with an adhesive etc.
[0021]
The length of the lower joint body 3 is longer than the length of the male screw 22 of the upper joint body 2, and a female screw 32 screwed to the male screw 22 provided on the outer peripheral surface of the upper joint body 2 is provided on the inner peripheral surface thereof. Is provided. The length of the inner peripheral surface of the lower joint body 3 provided with the female screw 32 may be longer than the length of the male screw 22 of the upper joint body 2. It is not necessary to provide the side joint body 3 over the entire inner peripheral surface. However, in the case where the outer diameter of the lower joint body 3 is uniform, considering that the lower joint body 2 is installed upside down in order to facilitate the installation, the entire inner peripheral surface is taken into consideration. A female screw 32 may be provided.
[0022]
The method of inserting and connecting the lower joint body 3 and the downstream vertical gutter L is the same as the case of the upper joint body 2 and the upstream vertical gutter U, and a description thereof will be omitted.
[0023]
FIG. 2 is an explanatory view showing a connection procedure for connecting the vertical gutters U and L using the vertical gutter joint 1 of the present invention. In this example, as an example, a case in which a vertical gutter made of a vinyl chloride resin is connected using a vertical gutter joint made of a vinyl chloride resin will be described, but it goes without saying that this is not all.
[0024]
First, as shown in FIG. 2 (a), the upper end of a vertical gutter U on the upstream side and the upper end of a vertical gutter L on the downstream side are cut at a right angle to the pipe axis, respectively. When the parts are butt-matched to each other, the butt portion should be linear. Next, the upper joint body 2 is inserted into the vertical gutter U on the upstream side, and is bonded and connected using, for example, an adhesive. At this time, if the adhesive is applied and inserted into the inside of the vertical gutter U on the upstream side and the taper portion other than the tapered thick portion of the upper joint body, the adhesive is prevented from being attached to the male screw 22 by mistake. You.
[0025]
At a position where the male screw 22 matches the lower end of the upstream vertical gutter U or slightly enters the upstream vertical gutter U, the upper joint body 2 is inserted into the upstream vertical gutter U. Is stopped, and the male screw 22 projects from the lower end portion of the upstream vertical gutter U.
[0026]
As shown in FIG. 2B, the lower joint body 3 is also adhesively connected to the downstream vertical gutter L using an adhesive or the like in the same manner as the upper joint body 2. At this time, the lower joint body 3 is connected. The body 3 is arranged so as not to protrude from the upper end of the vertical gutter L on the downstream side. Thus, the female screw 32 is provided in the upper end portion of the downstream vertical gutter L.
[0027]
After the adhesive is solidified, the female screw 32 at the upper end of the vertical gutter L on the downstream side is engaged with the male screw 22 projecting from the lower end of the vertical gutter U on the upstream side as shown in FIG. The vertical plumbing L on the downstream side is screwed and connected to the vertical plumbing U on the upstream side while rotating. At this time, an adhesive or the like may be applied to the spiral portion and screwed together to secure the connection.
[0028]
When the lower end of the upstream vertical gutter U and the upper end of the downstream vertical gutter L come into contact with each other and cannot be screwed any more, the rotation is stopped, and the connection between the vertical gutters U and L is completed. .
[0029]
【The invention's effect】
As described above, the joint for a vertical gutter of the present invention, when the vertical gutters are connected to each other, the joint is not visible from the connection portion, the connection can be made with a good appearance, and the risk of water leakage is small. It becomes a gutter joint.
[Brief description of the drawings]
FIG. 1 is a half sectional view showing an example of a vertical gutter joint of the present invention.
FIG. 2 is an explanatory diagram showing an example of a connection procedure for connecting a vertical gutter using the vertical gutter joint of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical gutter joint 2 Upper joint body 21 Upstream insertion connection part 22 Male screw 3 Lower joint body 31 Downstream insertion connection part 32 Female screw U, L Vertical gutter
