JP5780802B2 - Duct connection fitting - Google Patents

Duct connection fitting Download PDF

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JP5780802B2
JP5780802B2 JP2011071829A JP2011071829A JP5780802B2 JP 5780802 B2 JP5780802 B2 JP 5780802B2 JP 2011071829 A JP2011071829 A JP 2011071829A JP 2011071829 A JP2011071829 A JP 2011071829A JP 5780802 B2 JP5780802 B2 JP 5780802B2
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connection
surface portion
butt
conversion member
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JP2012207815A (en
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桂一 柏村
桂一 柏村
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Fuji Industrial Co Ltd
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Description

本発明は、ダクト接続継手に係り、詳しくは、加熱調理器の上方に位置して設置される壁設置タイプのレンジフード上部の接続排気口を、建物外壁の屋外排気口に一端側が接続されて配管されている排気ダクトの他端側に接続するに際して、レンジフードの設置条件に応じて接続排気口から排気ダクトへの接続方向を変える方向変換用として好適なダクト接続継手に関する。   The present invention relates to a duct connection joint. Specifically, a connection exhaust port at the top of a wall-mounted range hood that is installed above a heating cooker is connected at one end to an outdoor exhaust port on the outer wall of a building. The present invention relates to a duct connection joint suitable for changing the connection direction from a connection exhaust port to an exhaust duct according to installation conditions of a range hood when connecting to the other end side of a piped exhaust duct.

マンションなどの集合住宅におけるキッチンへのレンジフードの設置は、例えば、図７および図８に示すように、ダイニングやリビングなどを仕切る建物の間仕切り壁のキッチン側に面する壁面に、当該壁面に背を向けた状態でレンジフードを取り付ける。そして、バルコニなどの建物外壁に設置される屋外排気口に一端側が接続されてリビングなどの下がり天井の内部に配管される排気ダクトの他端側に対するレンジフードの上部に設けられている接続排気口の接続がエルボ管などを用いて行われる。
これにより、調理中に加熱調理器や調理鍋などから発生する排気流（廃ガス、油煙、湯煙など）を吸い込み捕集し、捕集された排気流がレンジフードの接続排気口に接続する排気ダクトを通して屋外排気口から排気されるようにしている。 For example, as shown in FIGS. 7 and 8, a range hood is installed in a kitchen in an apartment house such as an apartment building on the wall facing the kitchen side of a partition wall for partitioning a dining room or living room. Attach the range hood with the facing up. And the connection exhaust port provided in the upper part of the range hood with respect to the other end side of the exhaust duct that is connected to the outdoor exhaust port installed on the building outer wall such as Balconi and piped inside the falling ceiling of the living room etc. Is connected using an elbow tube or the like.
This sucks and collects the exhaust flow (waste gas, oil smoke, hot and cold smoke, etc.) generated from the heating cooker or cooking pan during cooking, and the collected exhaust flow connects to the connection exhaust port of the range hood. The air is exhausted from the outdoor exhaust through the duct.

このようにして行われるマンションなどの集合住宅におけるレンジフードの設置において、従来ではレンジフード上部の接続排気口の排気ダクトに対する接続を、例えば、特許文献１や特許文献２などで知られている排気エルボを用いることなどによって行われていた。   In installing a range hood in an apartment house such as a condominium, the connection of the connection exhaust port of the upper portion of the range hood to the exhaust duct is conventionally known, for example, as disclosed in Patent Literature 1, Patent Literature 2, and the like. It was done by using elbows.

特開平１１−１４８６９２号公報JP-A-11-148692 実開昭６３−２２５３７号公報Japanese Utility Model Publication No. 63-22537

ところで、特許文献１に記載の従来技術では、特許文献２に記載の排気エルボに対し、排気エルボがボックス状に形成されていることで、レンジフードの上部に対する取り付け高さを低く設定することができ、しかも、排気ダクトとの接続口を低位置に設けることができるために、レンジフードの上部からキッチン天井に至る高さ（空間）が低いレンジフードの設置条件においては有益である。   By the way, in the prior art described in Patent Document 1, the exhaust elbow is formed in a box shape with respect to the exhaust elbow described in Patent Document 2, so that the mounting height with respect to the upper portion of the range hood can be set low. In addition, since the connection port with the exhaust duct can be provided at a low position, it is advantageous in the installation condition of the range hood where the height (space) from the upper part of the range hood to the kitchen ceiling is low.

しかしながら、特許文献１に記載の従来技術における排気エルボは、レンジフードの接続排気口が開口されている上部（天板など）に対する取り付け下面に形成されているフランジ部のネジ挿通孔とレンジフードの上部に設けられているネジ孔とを合わせてネジ止めする必要があるために、排気エルボを用いた排気ダクトへの接続方向は、レンジフードの背面方向か、或いは両側面何れか方向の９０°でしか変換することができない。
そのために、特許文献１に記載の従来技術では、下がり天井の内部に配管されている排気ダクトが、レンジフードの接続排気口に対して４５°や６０°などの接続方向に位置（存在）しているレンジフードの設置条件には適用（使用）することができない問題があった。 However, the exhaust elbow in the prior art described in Patent Document 1 has a screw insertion hole in the flange portion formed on the lower surface of the attachment to the upper portion (top plate or the like) where the connection exhaust port of the range hood is open, and the range hood. Since it is necessary to screw together with the screw hole provided at the top, the connection direction to the exhaust duct using the exhaust elbow is 90 ° in the direction of the back of the range hood or either side of the range hood Can only be converted with.
Therefore, in the prior art described in Patent Document 1, the exhaust duct piped inside the falling ceiling is located (exists) in the connection direction such as 45 ° or 60 ° with respect to the connection exhaust port of the range hood. There was a problem that it could not be applied (used) to the installation conditions of the range hood.

一方、特許文献２に記載の従来技術では、特許文献１に記載の従来技術のように、排気ダクトに対する接続方向に制約されることなく、自在に接続方向を変換できるという利点があるものの、曲率半径を必要とするために、レンジフードの上部からの取り付け高さが高くなり、レンジフードの上部からキッチン天井に至る高さ（空間）が低いレンジフードの設置条件においては適用することができない問題があった。   On the other hand, the conventional technique described in Patent Document 2 has an advantage that the connection direction can be freely changed without being restricted by the connection direction with respect to the exhaust duct as in the conventional technique described in Patent Document 1, but the curvature is A problem that cannot be applied in range hood installation conditions where the installation height from the top of the range hood is high and the height (space) from the top of the range hood to the kitchen ceiling is low because a radius is required was there.

そこで、本発明は、このような問題を解消することを課題に創案されたものである。すなわち、下がり天井で目隠しされた状態で該下がり天井の内部に配管されている排気ダクトのように、建物側のダクト位置に制約がある場合にも自在に方向変換可能とすることでダクト接続が容易になり、しかも、接続排気口が設けられているレンジフードの上部からキッチン天井に至る高さ（空間）が低いレンジフードの設置条件に対しても使用することができるように改良されたダクト接続継手を提供することにある。   Therefore, the present invention has been developed with the object of solving such problems. That is, the duct connection can be freely changed even when there is a restriction on the duct position on the building side, such as an exhaust duct piped inside the falling ceiling in a state where it is hidden by the falling ceiling. A duct that has been improved so that it can be used for installation conditions of range hoods that have a low height (space) from the top of the range hood where the connection exhaust port is provided to the ceiling of the kitchen. It is to provide a connection joint.

前記課題を解決するために、本発明に係るダクト接続継手では少なくとも以下の構成を具備している。
すなわち、本発明は、レンジフードの上部に設けられている接続排気口と建物に設けられている排気ダクトを接続するダクト接続継手であって、前記接続排気口に連通させて前記レンジフードの上部に取り付けられる第１の変換部材と、前記第１の変換部材に連通させる連通口を備えて該第１の変換部材に載置固定されるとともに、前記排気ダクトに接続される側面開口の接続口を有する第２の変換部材と、を備えてなり、前記第１の変換部材は、前記接続排気口に連通させて前記レンジフードの上部に取り付けられる固定部材と、前記固定部材に連通させる連通口を備えて回動可能に突合せ重合される回動部材と、を備え、更に、前記固定部材および前記回動部材はそれぞれ、円筒形状を呈する連通口の一端開口縁から平面視で略四角形状に連設させたフランジ部を備えているとともに、当該連通口の他端開口縁には回動可能に突合せ重合させる突合せ接続部を備えてなり、前記第２の変換部材を前記接続排気口に接続するように構成されていることを特徴とする。 In order to solve the above problems, the duct connection joint according to the present invention has at least the following configuration.
That is, the present invention is a duct connection joint for connecting a connection exhaust port provided in the upper portion of the range hood and an exhaust duct provided in the building, and communicates with the connection exhaust port so as to communicate with the upper portion of the range hood. A first conversion member attached to the first conversion member, and a communication port that communicates with the first conversion member and is mounted and fixed on the first conversion member, and connected to the exhaust duct. A first conversion member, the first conversion member communicating with the connection exhaust port and attached to an upper portion of the range hood, and a communication port communicating with the fixing member. Bei example and a rotating member which is butt polymerized rotatably provided with a further, wherein each of the fixed member and the rotating member, a substantially square shape in a plan view from one end opening edge of the communication port exhibiting a cylindrical shape Together and a flange portion is continuously provided to the other end opening edge of the communication port becomes provided with a connecting portion butt to butt pivotally polymerization, connecting said second conversion member to said connecting outlet It is comprised so that it may do.

ここで、前記第２の変換部材は、下面開口の前記連通口と、側面開口の前記接続口を備える略Ｌ形ボックス状に形成されている。また、前記第２の変換部材は、前記連通口の開口縁から平面視で略四角形状に連設させたフランジ部を備えていることが好適なものとなる。   Here, the second conversion member is formed in a substantially L-shaped box shape including the communication port having a lower surface opening and the connection port having a side surface opening. In addition, it is preferable that the second conversion member includes a flange portion that is continuously provided in a substantially square shape in plan view from the opening edge of the communication port.

このような構成によれば、レンジフードの上部に設けられている接続排気口に連通させた状態で、レンジフードの上部に第１の変換部材を介して第２の変換部材を回動可能に取り付けることができる。これにより、レンジフードの上部に設けられている接続排気口と建物に設けられている排気ダクトを接続する際に第２の変換部材の接続方向を自在に回動変換せしめて、該第２の変換部材の接続口を排気ダクトに接続することができる。このとき、エルボ管などの繋ぎ管を用いて第２の変換部材の接続口を排気ダクトに接続するとよい。   According to such a configuration, the second conversion member can be rotated to the upper portion of the range hood via the first conversion member in a state where it is communicated with the connection exhaust port provided at the upper portion of the range hood. Can be attached. Thereby, when connecting the connection exhaust port provided in the upper part of the range hood and the exhaust duct provided in the building, the connection direction of the second conversion member is freely rotated and converted, so that the second The connection port of the conversion member can be connected to the exhaust duct. At this time, the connection port of the second conversion member may be connected to the exhaust duct using a connecting pipe such as an elbow pipe.

また、第２の変換部材は、略Ｌ形ボックス状に形成されており、排気ダクトに接続される接続口を側面に備え、第１の変換部材に連通される連通口を下面に備え、該接続口と連通口は互いに直角に位置している。すなわち、略Ｌ形ボックス状の直交する二面に接続口と連通口を備えた構造であるため、既知のエルボ管などのように曲率半径を必要とせずに、当該開口部分を形成するために必要な加工幅のみで構成される。
これにより、第２の変換部材のレンジフード上部からの取り付け高さを低く抑えることができる。 In addition, the second conversion member is formed in a substantially L-shaped box shape, and has a connection port connected to the exhaust duct on the side surface, a communication port connected to the first conversion member on the lower surface, The connection port and the communication port are located at right angles to each other. That is, in order to form the opening portion without requiring a radius of curvature as in a known elbow pipe, etc., since it has a structure having a connection port and a communication port on two orthogonal surfaces of a substantially L-shaped box shape. Consists of only the required processing width.
Thereby, the attachment height from the range hood upper part of a 2nd conversion member can be restrained low.

また、前記突合せ接続部のうち、前記固定部材の連通口側に設けられる突合せ接続部は、開口縁部から外周方向に突出させた第１の座面部と、この第１の座面部の外周縁から突合せ重合方向に突出させた第２の座面部と、から断面視で略Ｌ字形状に形成されている受け口と成し、前記回動部材の連通口側に設けられる前記突合せ接続部は、開口縁部から外周方向に突出されて前記第１の座面部に突合せ重合される第１の当接面部と、この第１の当接面部の外周縁から前記第２の座面部と同じ突合せ重合方向に突出されて該第２の座面部の内側に当接される第２の当接面部とから断面視で略Ｌ字形状に形成されている挿し口と成し、前記受け口上に前記挿し口を突合せ重合させ、前記受け口の前記第２の座面部の外周面側から締付け部材によって締め付けて、前記第１の座面部と前記第１の当接面部、前記第２の座面部と前記第２の当接面部をそれぞれ圧接させることで前記固定部材に前記回動部材を回動不能に連結するように形成されていることが好適なものとなる。
In addition, of the previous SL butt connection portion, the butt connection portion is provided in the communicating port side of the fixing member, a first seat surface portion which projects radially outward from the opening edge, outside of the first seat portion A second seating surface portion projecting from the periphery in the butt polymerization direction, and a receiving port formed in a substantially L shape in cross-sectional view, and the butt connection portion provided on the communication port side of the rotating member is A first abutting surface portion that protrudes in the outer circumferential direction from the opening edge portion and is butt-polymerized to the first seating surface portion, and the same butting as the second seating surface portion from the outer peripheral edge of the first abutting surface portion An insertion port formed in a substantially L shape in a cross-sectional view from a second contact surface portion that protrudes in the overlapping direction and contacts the inside of the second seat surface portion, and is formed on the receiving port. The insertion port is butt-polymerized and tightened from the outer peripheral surface side of the second seat surface portion of the receiving port by a fastening member. The rotating member cannot be rotated with respect to the fixed member by tightening and pressing the first seat surface portion and the first contact surface portion, and the second seat surface portion and the second contact surface portion. It is suitable that it is formed so as to be connected to the.

このような構成によれば、突合せ連結される固定部材側の受け口に、回動部材側の挿し口を同軸上に対面させて突合せ重合させ、この突合せ状態で、受け口側の第２の当接面部の外周面側から締付け部材によって締め付ける。
これにより、固定部材の受け口と回動部材の挿し口との突合せ方向の第１の座面部と第１の当接面部とを、そして円周方向の第２の座面部と第２の当接面部とを圧接させて固定部材に対して回動部材を回動不能に連結することができる。このとき、締付け部材を仮締め状態とすることで、回動部材は固定部材に対して回動可能と成し、回動部材のフランジ部に取り付けられて第１の変換部材上に載置固定される第２の変換部材の接続口を建物に設けられている排気ダクトの方向へと自在に回動変換することができる。 According to such a configuration, the insertion port on the rotating member side is coaxially opposed to the receiving port on the fixed member side to be butt-connected, and the second abutment on the receiving port side in this butt state. Tighten by a tightening member from the outer peripheral surface side of the surface portion.
As a result, the first seat surface portion and the first contact surface portion in the abutting direction of the receiving port of the fixing member and the insertion port of the rotating member, and the second seat surface portion in the circumferential direction and the second contact surface The rotating member can be non-rotatably connected to the fixed member by pressing the surface portion. At this time, by turning the tightening member into a temporarily tightened state, the rotating member can rotate with respect to the fixed member, and is mounted on the flange portion of the rotating member and fixed on the first conversion member. The connection port of the second conversion member to be rotated can be freely rotated in the direction of the exhaust duct provided in the building.

以上説明したように本発明のダクト接続継手によれば、下がり天井で目隠しされた状態で該下がり天井の内部に配管されている建物側の排気ダクトとレンジフードの上部に設けられている接続排気口との接続のように、該接続排気口と排気ダクトの位置が異なる設置条件下においても、第２の変換部材の側面開口の接続口を自在に方向変換することで、排気ダクトとの接続が容易に可能となる。   As described above, according to the duct connection joint of the present invention, the connection exhaust provided on the upper side of the building-side exhaust duct and the range hood piped inside the falling ceiling while being concealed by the falling ceiling. Even when the connection exhaust port and the exhaust duct are located at different positions, such as the connection with the port, the direction of the connection port of the side opening of the second conversion member can be freely changed, so that the connection with the exhaust duct is achieved. Is easily possible.

また、第２の変換部材は、側面開口の接続口と下面開口の連通口を直角となる位置に設けてなる略Ｌ形ボックス状に形成されていることで、既知のエルボ管などのように曲率半径を必要とせずに、当該開口部分を形成するために必要な加工幅のみで構成することができるので、レンジフード上部からの取り付け高さを低く抑えることができる。
これにより、レンジフードの上部からキッチン天井に至る高さ（空間）が低いレンジフードの設置条件に対してもレンジフード上部の接続排気口と排気ダクトとを接続するダクト接続継手として使用することができる。 Further, the second conversion member is formed in a substantially L-shaped box shape in which the connection port of the side surface opening and the communication port of the lower surface opening are provided at a right angle position, so that a known elbow pipe or the like is formed. Since it can comprise only the processing width required in order to form the said opening part, without requiring a curvature radius, the attachment height from the range hood upper part can be restrained low.
As a result, it can be used as a duct connection joint that connects the exhaust outlet and the exhaust duct on the top of the range hood even when the range hood has a low height (space) from the top of the range hood to the kitchen ceiling. it can.

また、第１の変換部材の突合せ連結される固定部材側の受け口に回動部材側の挿し口を突合せ重合させ、受け口側の第２の当接面部の外周面側から締付け部材によって締め付けることで、固定部材に対して回動部材を回動不能に連結することができる。   Further, the insertion opening on the rotating member side is abutted and overlapped with the receiving port on the fixed member to which the first conversion member is butt-connected, and tightened by the tightening member from the outer peripheral surface side of the second contact surface portion on the receiving port side. The rotating member can be non-rotatably connected to the fixed member.

本発明の実施形態に係るダクト接続継手を示し、（ａ）は、斜視図であり、（ｂ）は、縦断面図である。The duct connection coupling which concerns on embodiment of this invention is shown, (a) is a perspective view, (b) is a longitudinal cross-sectional view. ダクト接続継手を構成する第１の変換部材を示し、（ａ）は、斜視図であり、（ｂ）は、縦断面図である。The 1st conversion member which comprises a duct connection coupling is shown, (a) is a perspective view, (b) is a longitudinal cross-sectional view. 第１の変換部材の固定部材を示し、（ａ）は、斜視図であり、（ｂ）は、縦断面図である。The fixing member of a 1st conversion member is shown, (a) is a perspective view, (b) is a longitudinal cross-sectional view. 第１の変換部材の回動部材を示し、（ａ）は、斜視図であり、（ｂ）は、縦断面図である。The rotation member of a 1st conversion member is shown, (a) is a perspective view, (b) is a longitudinal cross-sectional view. 締付け部材を示す斜視図である。It is a perspective view which shows a clamping member. ダクト接続継手を構成する第２の変換部材を示し、（ａ）は、斜視図であり、（ｂ）は、縦断面図である。The 2nd conversion member which comprises a duct connection coupling is shown, (a) is a perspective view and (b) is a longitudinal section. 本発明の実施形態に係るダクト接続継手が適用されたレンジフードの接続設置の一例を示す斜視図である。It is a perspective view which shows an example of the connection installation of the range hood to which the duct connection coupling which concerns on embodiment of this invention was applied. 同レンジフードの接続設置の一例を示す平面図である。It is a top view which shows an example of the connection installation of the same range hood.

以下、本発明の実施形態について、適宜図面を参照しながら詳細に説明する。
図１は、本発明の実施形態に係るダクト接続継手を示す斜視図および縦断面図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 is a perspective view and a longitudinal sectional view showing a duct connection joint according to an embodiment of the present invention.

≪ダクト接続継手の構成≫
ダクト接続継手Ａは、例えば、後記の図７および図８に例示したように、ダイニングやリビングなどを仕切る建物の間仕切り壁ＣのキッチンＫ側に面する壁面ｃに、当該壁面ｃに背を向けた状態で設置されるレンジフードＢの接続排気口１を、下がり天井Ｄの内部に配管されている排気ダクト２に接続するときのように、接続排気口１と排気ダクト２の位置が左右にずれている場合などにおいても、排気ダクト２との接続を容易に可能とする配管継手である。 ≪Configuration of duct connection joint≫
For example, as illustrated in FIGS. 7 and 8 to be described later, the duct connection joint A is directed to the wall surface c facing the kitchen K of the partition wall C that partitions the dining room or the living room, with the back facing the wall surface c. When connecting the connection exhaust port 1 of the range hood B installed in a closed state to the exhaust duct 2 piped inside the falling ceiling D, the positions of the connection exhaust port 1 and the exhaust duct 2 are left and right. It is a pipe joint that allows easy connection to the exhaust duct 2 even when it is displaced.

このダクト接続継手Ａは、図１、図７および図８に示すように、接続排気口１が設けられているレンジフードＢの天板ｂに取り付けられる第１の変換部材Ａ１と、この第１の変換部材Ａ１に連通させて該第１の変換部材Ａ１の後記する回動部材４に載置固定されるとともに、排気ダクト２に対する接続方向に向けて該排気ダクト２に接続される第２の変換部材Ａ２とを備えて構成されている。   As shown in FIGS. 1, 7, and 8, the duct connection joint A includes a first conversion member A1 attached to the top plate b of the range hood B provided with the connection exhaust port 1, and the first conversion member A1. The second conversion member A1 is connected to the exhaust duct 2 in the direction of connection to the exhaust duct 2 and is fixedly mounted on the rotating member 4 described later of the first conversion member A1. A conversion member A2 is provided.

≪第１の変換部材の構成≫
図２は、第１の変換部材を示す斜視図および縦断面図である。ここでは、図１を適宜参照しながら説明する。
第１の変換部材Ａ１は、図１の（ｂ）に示すように、レンジフードＢの接続排気口１に略同軸上に連通させてレンジフードＢの天板ｂに取り付けられる固定部材３と、この固定部材３に回動可能に突合せ重合される回動部材４と、この回動部材４を固定部材３に対して回動不能に連結するための締付け部材５とを備えて構成されている。 << Configuration of the first conversion member >>
FIG. 2 is a perspective view and a longitudinal sectional view showing the first conversion member. Here, description will be made with reference to FIG. 1 as appropriate.
As shown in FIG. 1 (b), the first conversion member A1 is connected to the connection exhaust port 1 of the range hood B substantially coaxially and fixed to the top plate b of the range hood B; The rotating member 4 is configured to rotate and abut on the fixing member 3 and a fastening member 5 for connecting the rotating member 4 to the fixing member 3 so as not to rotate. .

≪固定部材の構成≫
図３は、固定部材を示す斜視図および縦断面図である。
固定部材３は、レンジフードＢの接続排気口１に後記する連通口６を連通させた状態でレンジフードＢの天板ｂ上にネジ止めなどによって取り付けられる。
この固定部材３は、接続排気口１に連通させる連通口６の一端開口縁にフランジ部７を備えているとともに、当該連通口６の他端開口縁には回動部材４の後記する突合せ接続部１０を回動可能に突合せ重合させる突合せ接続部８を備えている。 ≪Configuration of fixing member≫
FIG. 3 is a perspective view and a longitudinal sectional view showing the fixing member.
The fixing member 3 is attached to the top plate b of the range hood B by screws or the like in a state where a communication port 6 described later is connected to the connection exhaust port 1 of the range hood B.
The fixing member 3 includes a flange portion 7 at one end opening edge of the communication port 6 communicating with the connection exhaust port 1, and a butt connection described later on the rotation member 4 at the other end opening edge of the communication port 6. A butt connection portion 8 is provided for butt-polymerizing the portion 10 so as to be rotatable.

連通口６は、接続排気口１の開口に相当する大きさで適宜高さの円筒形状で、突合せ接続部８が備えられる他端開口縁側からフランジ部７が備えられる一端開口縁側に向けて口径を漸次湾曲拡開させた略ラッパ口形状に形成されている。   The communication port 6 has a cylindrical shape having a size corresponding to the opening of the connection exhaust port 1 and an appropriate height, and has a diameter from the other end opening edge side where the butt connection portion 8 is provided toward the one end opening edge side where the flange portion 7 is provided. Is formed in a substantially trumpet shape in which the curve is gradually expanded.

フランジ部７は、レンジフードＢの接続排気口１の周り要所に設けられている図示省略のネジ孔に止めネジにて取り付けられる。このフランジ部７は、連通口６の一端開口縁から外周に向けて平面視で略四角形状に連設形成されているとともに、四隅コーナーにネジ挿通孔９を備えている。   The flange portion 7 is attached to a screw hole (not shown) provided at a key point around the connection exhaust port 1 of the range hood B with a set screw. The flange portion 7 is continuously formed in a substantially rectangular shape in plan view from one end opening edge of the communication port 6 to the outer periphery, and includes screw insertion holes 9 at four corners.

突合せ接続部８は、回動部材４の突合せ接続部１０を突合せ内在させる受け口８ａである。この受け口８ａは、連通口６の他端開口縁から外周方向に突出させた第１の座面部８ａ−１と、この第１の座面部８ａ−１の外周縁から図２に示すように、回動部材４の後記する連通口１１方向の筒方向に突出させた第２の座面部８ａ−２とから断面視で略Ｌ字形状に形成されている。   The butt connection portion 8 is a receiving port 8a that causes the butt connection portion 10 of the rotating member 4 to butt inside. As shown in FIG. 2 from the outer peripheral edge of the first seat surface portion 8a-1 and the first seat surface portion 8a-1 that protrudes in the outer peripheral direction from the other end opening edge of the communication port 6, The rotating member 4 is formed in a substantially L shape in cross-sectional view from a second seat surface portion 8a-2 projecting in the cylinder direction in the direction of the communication port 11 described later.

≪回動部材の構成≫
図４は、回動部材を示す斜視図および縦断面図である。
回動部材４は、締付け部材５によって固定部材３の受け口８に連結される。
この回動部材４は、固定部材３の連通口６に連通させる連通口１１の一端開口縁にフランジ部１２を備えているとともに、当該連通口１１の他端開口縁には固定部材３の受け口８に回動可能に突合せ重合させる突合せ接続部１０を備えている。 ≪Configuration of rotating member≫
FIG. 4 is a perspective view and a longitudinal sectional view showing the rotating member.
The rotating member 4 is connected to the receiving port 8 of the fixing member 3 by a fastening member 5.
The rotating member 4 includes a flange portion 12 at one end opening edge of the communication port 11 communicating with the communication port 6 of the fixing member 3, and a receiving port of the fixing member 3 at the other end opening edge of the communication port 11. 8 is provided with a butt connection portion 10 for butt polymerization to be rotatable.

連通口１１は、固定部材３の連通口６の口径と同径とする円筒形状で、突合せ接続部１０が備えられる他端開口縁側からフランジ部１２が備えられる一端開口縁側に向けて口径を漸次湾曲拡開させた略ラッパ口形状に形成されている。   The communication port 11 has a cylindrical shape having the same diameter as the communication port 6 of the fixing member 3, and the diameter gradually increases from the other end opening edge side where the butt connection portion 10 is provided toward the one end opening edge side where the flange portion 12 is provided. It is formed in a substantially trumpet shape that is curved and expanded.

フランジ部１２は、第２の変換部材Ａ２をネジ止めにて載置固定するものであり、連通口１１の一端開口縁から外周に向けて平面視で略四角形状に連設形成されているとともに、四隅コーナーにネジ孔１３を備えている。   The flange portion 12 is for mounting and fixing the second conversion member A2 by screwing, and is continuously formed in a substantially rectangular shape in plan view from one end opening edge of the communication port 11 to the outer periphery. The screw holes 13 are provided at the four corners.

突合せ接続部１０は、固定部材３の受け口８に突合せ内在させる指し口１０ａである。この指し口１０ａは、連通口１１の他端開口縁から外周方向に突出させた第１の座面部１０ａ−１と、この第１の座面部１０ａ−１の外周縁から図２に示すように、固定部材３の連通口６方向の筒方向に突出させた第２の座面部１０ａ−２とから断面視で略Ｌ字形状に形成されている。   The butt connection portion 10 is a pointing port 10 a that is caused to butt inside the receiving port 8 of the fixing member 3. As shown in FIG. 2, the pointing port 10 a includes a first seat surface portion 10 a-1 projecting in the outer peripheral direction from the other end opening edge of the communication port 11 and an outer peripheral edge of the first seat surface portion 10 a-1. The second seating surface portion 10 a-2 is protruded in the cylindrical direction in the direction of the communication port 6 of the fixing member 3, and is formed in a substantially L shape in sectional view.

そして、このように形成されている回動部材４のフランジ部１２の一辺側には、図４に示すように、略クランク形状に折り曲げ形成されている引掛け部１４を縁辺に沿わせて備えている。
これにより、図１の（ｂ）に示すように、第２の変換部材Ａ２の後記する連通口１５のフランジ部１６の一辺側を差し込み掛止させた状態で他辺側を止めネジ１７を用いてネジ止めすることで、第２の変換部材Ａ２を回動部材４に載置固定し得るようにしている。 Then, on one side of the flange portion 12 of the rotating member 4 formed in this way, as shown in FIG. 4, a hooking portion 14 that is bent into a substantially crank shape is provided along the edge. ing.
Thereby, as shown in FIG. 1 (b), the set screw 17 is used on the other side in a state where one side of the flange portion 16 of the communication port 15 described later of the second conversion member A2 is inserted and latched. The second conversion member A2 can be placed and fixed on the rotating member 4 by screwing.

≪締付け部材の構成≫
図５は、締付け部材を示す斜視図である。ここでは、図１および図２を適宜参照しながら説明する。
締付け部材５は、図５に示すように、バンド５ａと、このバンド５ａの円周開放端を接近させる方向側を引き寄せて、該バンド５ａを縮径方向に締め付ける締付け具５ｂとを備えて構成されている。 ≪Configuration of tightening member≫
FIG. 5 is a perspective view showing a tightening member. Here, description will be made with reference to FIGS. 1 and 2 as appropriate.
As shown in FIG. 5, the tightening member 5 includes a band 5a and a tightening tool 5b that pulls the side of the band 5a toward which the circumferential open end approaches to tighten the band 5a in the diameter-reducing direction. Has been.

バンド５ａは、図１および図２に示すように、固定部材３の受け口８ａ側の第２の座面部８ａ−２の外側に沿って該第２の座面部８ａ−２の全周にわたり巻き付けセットされる程度の長さを有する断面視で略台形形状に形成されている
そして、このバンド５ａの両端開放側には、図５に示すように、締付け具５ｂを構成する略Ｌ字形状の連繋部材１８が溶接やその他の固着手段によってそれぞれ備えられており、この連繋部材１８の間にわたり締付けボルト１９が貫通架橋状に備えられている。 1 and 2, the band 5a is wound around the entire circumference of the second seat surface portion 8a-2 along the outer side of the second seat surface portion 8a-2 on the receiving port 8a side of the fixing member 3. The band 5a is formed in a substantially trapezoidal shape in cross-sectional view, and is connected to a substantially L-shaped link constituting the fastening tool 5b, as shown in FIG. The members 18 are respectively provided by welding or other fixing means, and the fastening bolts 19 are provided in a penetrating manner between the connecting members 18.

≪第２の変換部材の構成≫
図６は、ダクト接続継手を構成する第２の変換部材を示す斜視図および縦断面図である。
第２の変換部材Ａ２は、図６に示すように、下面開口の連通口１５と側面開口の接続口２０を、直角に屈曲する屈曲部分２１の内周２１ａに設けてなる略Ｌ形ボックス状に形成されている。
具体的に説明すると、第２の変換部材Ａ２は、屈曲部分２１の内周２１ａが曲率半径を必要とせずに、当該屈曲部分２１を形成するために必要な加工幅のみで構成され、図６に示すように、円筒状で側面開口の接続口２０と略正四角形状で下面開口の連通口１５が９０°の角度差で内周２１ａの流路軸線方向両側に設けられている。
また、第２の変換部材Ａ２は、屈曲部分２１の外周２１ｂを湾曲面とすることで、排気流の圧損を小さく抑える流路形状としている。 << Configuration of Second Conversion Member >>
FIG. 6 is a perspective view and a longitudinal sectional view showing a second conversion member constituting the duct connection joint.
As shown in FIG. 6, the second conversion member A2 has a substantially L-shaped box shape in which a communication port 15 having a lower surface opening and a connection port 20 having a side surface opening are provided on an inner periphery 21a of a bent portion 21 bent at a right angle. Is formed.
More specifically, the second conversion member A2 is configured only by a processing width necessary for forming the bent portion 21 without the inner periphery 21a of the bent portion 21 requiring a radius of curvature. As shown in FIG. 5, the connecting port 20 having a cylindrical shape and a side opening and a communication port 15 having a substantially square shape and a lower surface opening are provided on both sides of the inner circumference 21a in the flow axis direction with an angle difference of 90 °.
Further, the second conversion member A2 has a flow path shape that reduces the pressure loss of the exhaust flow by making the outer periphery 21b of the bent portion 21 a curved surface.

そして、下面開口の連通口１５の開口周縁にはフランジ部１６が備えられているとともに、円筒状の接続口２０には排気流などの逆流を防ぐためのシャッタ２２が備えられている。   A flange portion 16 is provided at the opening periphery of the communication port 15 on the lower surface opening, and a shutter 22 for preventing a reverse flow such as an exhaust flow is provided at the cylindrical connection port 20.

フランジ部１６は、第２の変換部材Ａ２のフランジ部１２に載置固定するものであり、連通口１５の開口縁から外周に向けて平面視で略四角形状に連設形成されているとともに、四隅コーナーにネジ挿通孔２３を備えている。
また、フランジ部１６は、接続口２０が開口する側に位置する一辺側の幅を広く形成して、回動部材４のフランジ部１２上に載置固定するとき、当該幅広一辺側をフランジ部１２の一辺側に備えられている引掛け部１４に差し込み掛止し得るようにしている。 The flange portion 16 is placed and fixed on the flange portion 12 of the second conversion member A2, and is formed continuously in a substantially rectangular shape in plan view from the opening edge of the communication port 15 toward the outer periphery. Screw insertion holes 23 are provided at the four corners.
Further, when the flange portion 16 is formed with a wide width on one side located on the side where the connection port 20 opens and is fixedly mounted on the flange portion 12 of the rotating member 4, the wide one side is set to the flange portion. 12 so that it can be inserted into and latched on the hooking portion 14 provided on one side.

［作用説明］
つぎに、以上のように構成されている本実施形態に係るダクト接続継手Ａを適用させたレンジフードＢの天板ｂに設けられている接続排気口１を、リビングなどの下がり天井Ｄの内部に配管されている排気ダクト２へ接続する場合について説明する。
図７および図８は、本発明の実施形態に係るダクト接続継手が適用されたレンジフードの接続設置の一例を示す斜視図および平面図である。ここでは、図１〜図５を適宜参照しながら説明する。 [Description of operation]
Next, the connection exhaust port 1 provided in the top plate b of the range hood B to which the duct connection joint A according to the present embodiment configured as described above is applied is connected to the interior of the falling ceiling D such as a living room. The case where it connects to the exhaust duct 2 currently piped is demonstrated.
7 and 8 are a perspective view and a plan view showing an example of connection installation of a range hood to which the duct connection joint according to the embodiment of the present invention is applied. Here, it demonstrates, referring suitably FIGS. 1-5.

まず、図３および図４に示す第１の変換部材Ａ１を構成する固定部材３の受け口８ａに回動部材４の挿し口１０ａを突合せ重合させ、この重合状態で図５に示す締付け部材５のバンド５ａを受け口８ａの第２の座面部８ａ−２の外側に沿わせて装着して、図２に示す第１の変換部材Ａ１を組み立てる。このとき、締付けボルト１９によるバンド５ａの縮径方向への締めを仮締め状態として、回動部材４を固定部材３に回動可能に突合せ連結する。   First, the insertion port 10a of the rotating member 4 is abutted and polymerized with the receiving port 8a of the fixing member 3 constituting the first conversion member A1 shown in FIGS. 3 and 4, and the tightening member 5 shown in FIG. The band 5a is attached along the outside of the second seat surface portion 8a-2 of the receiving port 8a, and the first conversion member A1 shown in FIG. 2 is assembled. At this time, tightening of the band 5a by the tightening bolt 19 in the diameter reducing direction is temporarily tightened, and the rotating member 4 is butt-coupled to the fixed member 3 so as to be rotatable.

つぎに、第２の変換部材Ａ２の連通口１５に備えられているフランジ部１６の一辺側（側方開口の接続口２０側）を回動部材４のフランジ部１２に備えられている引掛け部１４に差し込み掛止させるとともに、その他辺側を止めネジ１７を用いてフランジ部１２にネジ止めして、図１に示すように、第２の変換部材Ａ２を回動部材４上に載置固定する。   Next, one side of the flange portion 16 provided on the communication port 15 of the second conversion member A2 (the side opening connection port 20 side) is hooked on the flange portion 12 of the rotating member 4. The second conversion member A2 is placed on the rotating member 4 as shown in FIG. Fix it.

そして、このようにして第１の変換部材Ａ１の回動部材４上に第２の変換部材Ａ２を載置固定するダクト接続継手Ａの組み立てが終了した後に、第１の変換部材Ａ１の固定部材３をレンジフードＢの接続排気口１が設けられている天板ｂにビス止めにより固定する。つぎに、第２の変換部材Ａ２の側面開口の接続口２０を、レンジフードＢが設置された間仕切り壁Ｃの開口部２４から臨む排気ダクト２方向に向けるように、固定部材３に回動可能に連結されている回動部材４を介して第２の変換部材Ａ２を回動させるとともに、図７および図８に示すように、エルボ管２５を介して排気ダクト２に接続する。
エルボ管２５を介して第２の変換部材Ａ２の接続口２０を排気ダクト２に接続した後、締付け部材５の締付けボルト１９でバンド５ａを本締めせしめて回動部材４を固定部材３に回動不能に連結するこれら一連の作業を行うことで、レンジフードＢの天板ｂに設けられている接続排気口１を、リビングなどの下がり天井Ｄの内部に配管されている排気ダクト２に接続するダクト接続作業が終了する。 Then, after the assembly of the duct connection joint A for mounting and fixing the second conversion member A2 on the rotating member 4 of the first conversion member A1 is completed in this manner, the fixing member of the first conversion member A1 is completed. 3 is fixed to the top plate b provided with the connection exhaust port 1 of the range hood B by screws. Next, the fixing member 3 can be rotated so that the connection port 20 of the side opening of the second conversion member A2 faces the exhaust duct 2 facing the opening 24 of the partition wall C where the range hood B is installed. The second conversion member A2 is rotated through the rotating member 4 connected to the exhaust duct 2 and connected to the exhaust duct 2 through the elbow pipe 25 as shown in FIGS.
After the connection port 20 of the second conversion member A2 is connected to the exhaust duct 2 via the elbow pipe 25, the band 5a is finally tightened with the tightening bolt 19 of the tightening member 5, and the rotating member 4 is rotated to the fixing member 3. By performing a series of operations that are immovably coupled, the connection exhaust port 1 provided in the top plate b of the range hood B is connected to the exhaust duct 2 that is piped inside the falling ceiling D such as in a living room. Duct connection work is completed.

Ａ ダクト接続継手
Ａ１ 第１の変換部材
Ａ２ 第２の変換部材
Ｂ レンジフード
１ 接続排気口
２ 排気ダクト
３ 固定部材
４ 回動部材
５ 締付け部材
５ａ バンド
５ｂ 締付け具
６，１１，１５ 連通口
８，１０ 突合せ接続部
８ａ 受け口
８ａ−１ 第１の座面部
８ａ−２ 第２の座面部
１０ａ 挿し口
１０ａ−１ 第１の当接面部
１０ａ−２ 第２の当接面部
２０ 接続口 A Duct connection joint A1 1st conversion member A2 2nd conversion member B Range hood 1 Connection exhaust port 2 Exhaust duct 3 Fixing member 4 Rotating member 5 Tightening member 5a Band 5b Fastening tool 6, 11, 15 Communication port 8, DESCRIPTION OF SYMBOLS 10 Butt connection part 8a Receptacle 8a-1 1st seat surface part 8a-2 2nd seat surface part 10a Insertion port 10a-1 1st contact surface part 10a-2 2nd contact surface part 20 Connection port

Claims (4)

レンジフードの上部に設けられている接続排気口と建物に設けられている排気ダクトを接続するダクト接続継手であって、
前記接続排気口に連通させて前記レンジフードの上部に取り付けられる第１の変換部材と、
前記第１の変換部材に連通させる連通口を備えて該第１の変換部材に載置固定されるとともに、前記排気ダクトに接続される側面開口の接続口を有する第２の変換部材と、を備えてなり、
前記第１の変換部材は、前記接続排気口に連通させて前記レンジフードの上部に取り付けられる固定部材と、前記固定部材に連通させる連通口を備えて回動可能に突合せ重合される回動部材と、を備え、
更に、前記固定部材および前記回動部材はそれぞれ、円筒形状を呈する連通口の一端開口縁から平面視で略四角形状に連設させたフランジ部を備えているとともに、当該連通口の他端開口縁には回動可能に突合せ重合させる突合せ接続部を備えてなり、
前記第２の変換部材を前記接続排気口に接続するように構成されていることを特徴とするダクト接続継手。 A duct connection joint that connects a connection exhaust port provided at the top of the range hood and an exhaust duct provided in the building,
A first conversion member attached to the upper portion of the range hood in communication with the connection exhaust port;
A second conversion member having a communication port that communicates with the first conversion member and mounted and fixed to the first conversion member, and having a connection port of a side opening connected to the exhaust duct; Prepared
The first conversion member includes a fixing member that is connected to the connection exhaust port and attached to the upper portion of the range hood, and a rotation member that is rotatably butt-polymerized with a communication port that communicates with the fixing member. and, the Bei example,
Further, each of the fixing member and the rotating member includes a flange portion that is provided in a substantially square shape in plan view from one end opening edge of the communication port having a cylindrical shape, and the other end opening of the communication port. The rim is provided with a butt connection part that butt-polymerizes so as to be rotatable,
A duct connection joint configured to connect the second conversion member to the connection exhaust port. 前記第２の変換部材は、下面開口の前記連通口と、側面開口の前記接続口を備える略Ｌ形ボックス状に形成されていることを特徴とする請求項１に記載のダクト接続継手。 2. The duct connection joint according to claim 1, wherein the second conversion member is formed in a substantially L-shaped box shape including the communication port having a lower surface opening and the connection port having a side surface opening. 前記突合せ接続部のうち、前記固定部材の連通口側に設けられる突合せ接続部は、開口縁部から外周方向に突出させた第１の座面部と、この第１の座面部の外周縁から突合せ重合方向に突出させた第２の座面部と、から断面視で略Ｌ字形状に形成されている受け口と成し、
前記回動部材の連通口側に設けられる前記突合せ接続部は、開口縁部から外周方向に突出されて前記第１の座面部に突合せ重合される第１の当接面部と、この第１の当接面部の外周縁から前記第２の座面部と同じ突合せ重合方向に突出されて該第２の座面部の内側に当接される第２の当接面部と、から断面視で略Ｌ字形状に形成されている挿し口と成し、
前記受け口に前記挿し口を突合せ重合させ、前記受け口の前記第２の座面部の外周面側から締付け部材によって締め付けて、前記第１の座面部と前記第１の当接面部、前記第２の座面部と前記第２の当接面部をそれぞれ圧接させることで前記固定部材に前記回動部材を回動不能に連結するように形成されていることを特徴とする請求項１または請求項２に記載のダクト接続継手。 Among previous SL butt connections, butt connection portion is provided in the communicating port side of the fixing member includes a first seat portion which projects radially outward from the opening edge, the outer peripheral edge of the first seat portion A second seating surface portion projecting in the butt polymerization direction, and a receiving port formed in a substantially L shape in cross-sectional view,
The butt connection portion provided on the communication port side of the rotating member includes a first contact surface portion that protrudes in an outer peripheral direction from an opening edge portion and is butt-polymerized to the first seat surface portion, and the first contact surface portion. A second contact surface portion that protrudes from the outer peripheral edge of the contact surface portion in the same butt overlap direction as the second seat surface portion and contacts the inside of the second seat surface portion, and is substantially L-shaped in cross-sectional view. It is formed with the insertion port formed in the shape,
The insertion port is butt-superposed on the receiving port, and is tightened by a tightening member from the outer peripheral surface side of the second seating surface portion of the receiving port, so that the first seating surface portion, the first contact surface portion, and the second contact surface portion 3. The structure according to claim 1, wherein the rotating member is non-rotatably connected to the fixing member by pressing the seat surface portion and the second abutting surface portion respectively. The described duct connection joint. 締付け部材は、前記受け口の前記第２の座面部の外周面に沿って巻かれるバンドと、該バンドの円周開放端に装着されて、該バンドを縮径方向に締め付ける締付け具と、から構成されていることを特徴とする請求項３に記載のダクト接続継手。 The tightening member includes a band wound along the outer peripheral surface of the second seating surface portion of the receiving port, and a tightening tool that is attached to the circumferentially open end of the band and tightens the band in the diameter reducing direction. The duct connection joint according to claim 3, wherein the duct connection joint is provided.
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