JP3118260U - Corner piece for duct - Google Patents

Corner piece for duct Download PDF

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JP3118260U
JP3118260U JP2005009222U JP2005009222U JP3118260U JP 3118260 U JP3118260 U JP 3118260U JP 2005009222 U JP2005009222 U JP 2005009222U JP 2005009222 U JP2005009222 U JP 2005009222U JP 3118260 U JP3118260 U JP 3118260U
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duct
corner
piece
edge
protruding piece
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敏和 長谷川
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富士空調工業株式会社
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Abstract

【課題】 ダクトの外角部を強固に支持し、ねじりなどの外力に対するダクトの強度を上げることができるダクト用コーナーピースを提供する。
【解決手段】 コーナーピース1の内角縁に沿って形成された突出片1gを、内角縁の延長縁である直線縁まで延出し、突出片1gがダクトDの外角部D2に十分当接するように、突出片1gの高さを設定する。さらに、突出片1gを、内角縁および直線縁から自由端に向ってダクトDの中心側に傾斜するように形成する。コーナーピース1の突出片1gが、ダクトDの外角部D2を頂部D2aから平面部D2bにわたって強固に支持し、ねじりなどの外力に対するダクトDの強度が上がる。
【選択図】 図5
PROBLEM TO BE SOLVED: To provide a corner piece for a duct capable of firmly supporting an outer corner portion of the duct and increasing the strength of the duct against an external force such as torsion.
SOLUTION: A protruding piece 1g formed along an inner corner edge of a corner piece 1 is extended to a straight edge that is an extension edge of the inner corner edge so that the protruding piece 1g sufficiently contacts an outer corner portion D2 of a duct D. The height of the protruding piece 1g is set. Furthermore, the protruding piece 1g is formed so as to be inclined toward the center of the duct D from the inner corner edge and the straight edge toward the free end. The protruding piece 1g of the corner piece 1 firmly supports the outer corner portion D2 of the duct D from the top portion D2a to the plane portion D2b, and the strength of the duct D against external force such as torsion is increased.
[Selection] Figure 5

Description

本考案は、ダクトのフランジコーナーに取り付けられるダクト用コーナーピースに関する。   The present invention relates to a duct corner piece attached to a flange corner of a duct.

例えば、共板フランジ工法によってダクトを組み付ける場合、ダクト本体を構成する本体板を成型加工して共板フランジ部を形成し、各本体板を筒状に組み立てる。そして、共板フランジ部の端部間であるフランジコーナーにコーナーピースを取り付けて、2つのダクトのフランジ同士を合わせてダクトを組み付けるものである。このコーナーピースは、図6に示すように、平板状でL字形をしており、板面に対して垂直な突出片100aが内角縁に沿って形成されている。突出片100aは、内角縁のコーナーR(角部)が最も高く、内角縁の延長縁である直線縁に向って下降するように形成されている。そして、突出片100aをダクトの外角部に当接させた状態で、コーナーピース100をフランジのコーナーに取り付けるものである(例えば、特許文献1参照。)。
特開平7−51770号公報
For example, when assembling a duct by the co-plate flange method, a main plate constituting the duct main body is molded to form a co-plate flange portion, and the main plate is assembled into a cylindrical shape. And a corner piece is attached to the flange corner which is between the edge parts of a co-plate flange part, the flanges of two ducts are match | combined, and a duct is assembled | attached. As shown in FIG. 6, this corner piece is flat and L-shaped, and a protruding piece 100a perpendicular to the plate surface is formed along the inner corner edge. The protruding piece 100a has the highest corner R (corner portion) at the inner corner edge, and is formed so as to descend toward the straight edge that is an extension edge of the inner corner edge. And the corner piece 100 is attached to the corner of a flange in the state which made the protrusion piece 100a contact | abut to the outer corner | angular part of a duct (for example, refer patent document 1).
JP-A-7-51770

ところで、上記のようなコーナーピースでは、突出片が内角縁のコーナーRから直線縁に向って下降するように形成されている。すなわち、突出片がダクトの外角部の頂部のみに当接し、外角部の平面部には当接しない。このため、ダクトの外角部の頂部のみが突出片によって支持された状態となり、ねじりなどの外力に対するダクトの強度を上げることができない。特に、ダクトの幅(開口長さ)が大きい場合には、外力によってダクトが変形するおそれがある。   By the way, in the corner piece as described above, the protruding piece is formed so as to descend from the corner R of the inner corner edge toward the straight edge. That is, the protruding piece contacts only the top of the outer corner of the duct and does not contact the flat portion of the outer corner. For this reason, only the top of the outer corner portion of the duct is supported by the protruding piece, and the strength of the duct against an external force such as torsion cannot be increased. In particular, when the duct width (opening length) is large, the duct may be deformed by an external force.

そこで本考案は、ダクトの外角部を強固に支持し、ねじりなどの外力に対するダクトの強度を上げることができるダクト用コーナーピースを提供することを目的とする。   Accordingly, an object of the present invention is to provide a duct corner piece that can firmly support an outer corner portion of a duct and increase the strength of the duct against an external force such as torsion.

上記目的を達成するため請求項1に記載の考案は、平板状でL字形をしており、板面に対してほぼ垂直な突出片が内角縁に沿って形成され、突出片がダクトの外角部に当接した状態でダクトのフランジコーナーに取り付けられるダクト用コーナーピースにおいて、突出片を内角縁の延長縁である直線縁まで延出し、かつ、突出片の高さを全長にわたってほぼ同じに設定したことを特徴としている。
(作用)
コーナーピースの突出片が内角縁から直線縁まで延出されているため、突出片がダクトの外角部の頂部のみならず、外角部の平面部にまで当接する。また、突出片の高さが全長にわたって、すなわち内角縁から直線縁までほぼ同じに設定されているため、ダクトの外角部の頂部から平面部にわたって、突出片が均等に当接する。
In order to achieve the above object, the device according to claim 1 is a flat plate having an L-shape, and a protruding piece substantially perpendicular to the plate surface is formed along the inner corner edge, and the protruding piece is an outer angle of the duct. In the corner piece for duct that is attached to the flange corner of the duct in contact with the part, the protruding piece is extended to the straight edge that is the extension edge of the inner corner edge, and the height of the protruding piece is set almost the same over the entire length It is characterized by that.
(Function)
Since the protruding piece of the corner piece extends from the inner corner edge to the straight edge, the protruding piece contacts not only the top of the outer corner portion of the duct but also the flat portion of the outer corner portion. Moreover, since the height of the protruding piece is set to be substantially the same over the entire length, that is, from the inner corner edge to the straight edge, the protruding piece comes into contact evenly from the top of the outer corner portion of the duct to the flat portion.

請求項2に記載の考案は、請求項1に記載のダクト用コーナーピースにおいて、突出片がダクトの外角部に十分当接するように、突出片の高さを設定したことを特徴としている。
(作用)
コーナーピースの突出片がダクトの外角部に十分当接し、外角部が突出片よって強固に支持される。
The invention according to claim 2 is characterized in that, in the corner piece for a duct according to claim 1, the height of the protruding piece is set so that the protruding piece sufficiently comes into contact with the outer corner portion of the duct.
(Function)
The protruding piece of the corner piece sufficiently contacts the outer corner of the duct, and the outer corner is firmly supported by the protruding piece.

請求項3に記載の考案は、請求項1または2に記載のダクト用コーナーピースにおいて、突出片を、内角縁および直線縁から自由端に向ってダクトの中心側に傾斜するように形成したことを特徴としている。
(作用)
コーナーピースの突出片が自由端に向ってダクトの中心側(筒心側)に傾斜するように形成されているため、すなわち、ダクトのフランジ(開口側)からダクト本体(筒体側)に向って狭まるように(締め付けるように)突出片が形成されているため、突出片の自由端側がダクトの外角部に強く当接する。
The invention according to claim 3 is the corner piece for a duct according to claim 1 or 2, wherein the protruding piece is formed so as to be inclined toward the center of the duct from the inner corner edge and the straight edge toward the free end. It is characterized by.
(Function)
Because the protruding piece of the corner piece is inclined toward the center (cylinder center side) of the duct toward the free end, that is, from the flange (opening side) of the duct toward the duct body (cylinder side) Since the projecting piece is formed so as to be narrowed (tightened), the free end side of the projecting piece comes into strong contact with the outer corner of the duct.

請求項1に記載の考案によれば、コーナーピースの突出片がダクトの外角部の頂部から平面部にわたって均等に当接するため、突出片がダクトの外角部を強固かつ均等に支持し、ねじりなどの外力に対するダクトの強度を上げることができる。   According to the first aspect of the invention, since the protruding piece of the corner piece abuts uniformly from the top of the outer corner portion of the duct to the plane portion, the protruding piece firmly and evenly supports the outer corner portion of the duct, torsion, etc. The strength of the duct with respect to the external force can be increased.

請求項2に記載の考案によれば、ダクトの外角部がコーナーピースの突出片よって強固に支持されるため、外力に対するダクトの強度が上がる。   According to the second aspect of the present invention, since the outer corner portion of the duct is firmly supported by the protruding piece of the corner piece, the strength of the duct with respect to the external force is increased.

請求項3に記載の考案によれば、コーナーピースの突出片の自由端側がダクトの外角部に強く当接するため、内角縁および直線縁から自由端にわたって突出片がダクトの外角部を強固に支持し、ねじりなどの外力に対するダクトの強度が上がる。   According to the third aspect of the invention, since the free end side of the protruding piece of the corner piece strongly contacts the outer corner of the duct, the protruding piece firmly supports the outer corner of the duct from the inner corner edge and the straight edge to the free end. In addition, the duct strength against external forces such as torsion increases.

以下、本考案を図示の実施形態に基づいて説明する。   Hereinafter, the present invention will be described based on the illustrated embodiments.

図1は、本実施形態に係わるコーナーピース1(ダクト用コーナーピース)を示す正面図(a)と平面図(b)と底面図(c)であり、図2はコーナーピース1を示す背面図である。また、図3は、図1(a)のA−A断面図である。   FIG. 1 is a front view (a), a plan view (b), and a bottom view (c) showing a corner piece 1 (a corner piece for a duct) according to the present embodiment, and FIG. 2 is a rear view showing the corner piece 1. It is. FIG. 3 is a cross-sectional view taken along the line AA in FIG.

このコーナーピース1は金属製で、平板状でL字形をしている。コーナーピース1の平板部1aの角部には取付孔1bが形成され、平板部1aの直線部にはそれぞれ長方形状の凹部1cが形成されている。また、外周縁と内周縁とには、平板部1a(板面)に対して垂直な外周縁片1dと内周縁片1eとがそれぞれ形成されている。さらに、内角縁(内コーナーR)の両側には切欠き1fが形成され、この切欠き1f、1f間に、平板部1a(板面)に対してほぼ垂直な突出片1gが形成されている。すなわち、内角縁と内角縁の延長縁である直線縁とを含めた切欠き1f、1f間に、突出片1gが形成されている。この突出片1gの高さは、突出片1gが後述するダクトDの外角部D2に十分(広く)当接するように高く設定されており、本実施形態では、外周縁片1dおよび内周縁片1eの高さに対して4〜6倍程度の高さに設定されている。また、突出片1gは、その全長にわたって高さが同じに設定されており、さらに、基端である内角縁および直線縁から自由端に向って、わずかにL字の内側(ダクトDの中心側)に傾斜するように形成されている。さらには、本実施形態では、突出片1gの直線縁における長さは、内角縁の曲率半径の2倍程度に設定され、後述するように、突出片1gがダクトDの外角部D2の平面部D2bに十分当接するようになっている。   The corner piece 1 is made of metal and is flat and L-shaped. A mounting hole 1b is formed at a corner of the flat plate portion 1a of the corner piece 1, and a rectangular recess 1c is formed at each straight portion of the flat plate portion 1a. Further, an outer peripheral edge 1d and an inner peripheral edge 1e perpendicular to the flat plate portion 1a (plate surface) are formed on the outer peripheral edge and the inner peripheral edge, respectively. Further, notches 1f are formed on both sides of the inner corner edge (inner corner R), and a protruding piece 1g substantially perpendicular to the flat plate portion 1a (plate surface) is formed between the notches 1f and 1f. . That is, the protruding piece 1g is formed between the notches 1f and 1f including the inner corner edge and the straight edge that is an extension edge of the inner corner edge. The height of the protruding piece 1g is set high so that the protruding piece 1g sufficiently (widely) abuts on an outer corner portion D2 of the duct D to be described later. In this embodiment, the outer peripheral piece 1d and the inner peripheral piece 1e. The height is set to about 4 to 6 times the height. Further, the protruding piece 1g is set to have the same height over its entire length, and further slightly inward from the inner corner edge and the straight edge, which are the base ends, toward the free end (the center side of the duct D). ) To be inclined. Furthermore, in this embodiment, the length of the straight edge of the protruding piece 1g is set to about twice the radius of curvature of the inner corner edge, and the protruding piece 1g is a flat portion of the outer corner portion D2 of the duct D as described later. It is in sufficient contact with D2b.

次に、このような構成のコーナーピース1を用いて、ダクトDを組み付ける手順について、図4、5に基づいて説明する。   Next, a procedure for assembling the duct D using the corner piece 1 having such a configuration will be described with reference to FIGS.

ダクトDは角形ダクトであり、4枚の本体板10によって断面が四角い筒状のダクト本体が構成されている。すなわち、共板フランジ加工(工法)によって本体板10が成型加工され、先端部に共板フランジ部10aが形成されている。そして、各本体板10を筒状に組み立てることで、ダクト本体が構成され、開口先端にフランジD1が形成される。このフランジD1の四隅(コーナー)には、共板フランジ部10aの端部間による隙間が形成されている。   The duct D is a square duct, and a cylindrical duct body having a square cross section is constituted by the four body plates 10. That is, the main body plate 10 is molded by co-plate flange processing (construction method), and the co-plate flange portion 10a is formed at the tip. And the duct main body is comprised by assembling each main body board | plate 10 in a cylinder shape, and the flange D1 is formed in an opening front-end | tip. At the four corners of the flange D1, gaps between the end portions of the co-plate flange portion 10a are formed.

このようなダクトDのフランジD1の四隅に、コーナーピース1を取り付ける。この際、コーナーピース1の突出片1gをダクトDの外角部D2に当接させるように配設し、共板フランジ部10aの縁部10bをコーナーピース1の外周縁片1dにカシメ止めする。このようにしてコーナーピース1を取り付けた状態で、2つのダクトDのフランジD1間にガスケット11を挟んだ状態でフランジD1同士を合わせ、コーナーピース1の取付孔1bにボルト12を挿入して、ナット13を締め付け、ダクトDを組み付けるものである。   The corner pieces 1 are attached to the four corners of the flange D1 of such a duct D. At this time, the protruding piece 1g of the corner piece 1 is disposed so as to contact the outer corner portion D2 of the duct D, and the edge portion 10b of the co-plate flange portion 10a is caulked to the outer peripheral edge piece 1d of the corner piece 1. With the corner piece 1 attached in this manner, the flanges D1 are aligned with the gasket 11 sandwiched between the flanges D1 of the two ducts D, and the bolts 12 are inserted into the attachment holes 1b of the corner piece 1, The nut 13 is tightened and the duct D is assembled.

以上のように、本コーナーピース1によれば、突出片1gが内角縁から直線縁まで延出されているため、図5に示すように、突出片1gがダクトDの外角部D2の頂部D2aのみならず、外角部D2の平面部D2bにまで当接する。また、突出片1gの高さが、ダクトDの外角部D2に十分当接するように高く設定されており、しかも、突出片1gの高さが全長にわたって(内角縁から直線縁まで)ほぼ同じに設定されているため、ダクトDの外角部D2の頂部D2aから平面部D2bにわたって、突出片1gが広くかつ均等に当接する。この結果、突出片1gがダクトDの外角部D2を強固かつ均等に支持し、ねじりなどの外力に対するダクトDの強度を上げることができる。例えば、ダクトDにねじりが負荷された場合であっても、ダクトDの外角部D2がコーナーピース1の突出片1gによって補強されているため、ねじりによってダクトDが変形することが防止される。   As described above, according to the present corner piece 1, the protruding piece 1g extends from the inner corner edge to the straight edge, so that the protruding piece 1g is the top portion D2a of the outer corner portion D2 of the duct D as shown in FIG. Not only that, it contacts the flat surface portion D2b of the outer corner portion D2. Further, the height of the protruding piece 1g is set so as to be sufficiently in contact with the outer corner portion D2 of the duct D, and the height of the protruding piece 1g is substantially the same over the entire length (from the inner corner edge to the straight edge). Since it is set, the protruding piece 1g is wide and evenly abutted from the top portion D2a of the outer corner portion D2 of the duct D to the flat portion D2b. As a result, the protruding piece 1g can firmly and uniformly support the outer corner portion D2 of the duct D, and the strength of the duct D against an external force such as torsion can be increased. For example, even when a twist is applied to the duct D, the outer corner portion D2 of the duct D is reinforced by the protruding piece 1g of the corner piece 1, so that the duct D is prevented from being deformed by the twist.

さらに、コーナーピース1の突出片1gがダクトDの中心側に傾斜するように形成されているため、すなわち、ダクトDのフランジD1(開口側)からダクト本体(筒体側)に向って狭まるように(締め付けるように)突出片1gが形成されているため、突出片1gの自由端側(先端側)がダクトDの外角部D2に強く当接する。このため、基端(内角縁および直線縁)から自由端にわたって突出片1gがダクトDの外角部D2を強固に支持し、ねじりなどの外力に対するダクトDの強度がさらに上がる。   Furthermore, since the protruding piece 1g of the corner piece 1 is formed so as to be inclined toward the center side of the duct D, that is, narrows from the flange D1 (opening side) of the duct D toward the duct main body (cylinder side). Since the protruding piece 1g is formed (to be tightened), the free end side (front end side) of the protruding piece 1g strongly contacts the outer corner portion D2 of the duct D. For this reason, the protruding piece 1g firmly supports the outer corner portion D2 of the duct D from the base end (inner corner edge and straight edge) to the free end, and the strength of the duct D against an external force such as torsion is further increased.

以上、この考案の実施形態について説明したが、具体的な構成は、上記の実施形態に限られるものではなく、この考案の要旨を逸脱しない範囲の設計の変更等があっても、この考案に含まれる。例えば、本実施形態では、外周縁と内周縁とに外周縁片1dと内周縁片1eとを形成しているが、必ずしも形成する必要はない。また、突出片1gの高さおよび長さ(直線縁への延出長さ)は、ダクトDに要求される強度やダクトDの大きさなどに応じて決定すればよい。例えば、ダクトDの幅(開口長さ)が大きい場合には、ダクトDの幅方向の強度を高めるために、突出片1gの長さを長くし、ダクトDの長さ(筒心方向の長さ)が大きい場合には、ダクトDの長さ方向の強度を高めるために、突出片1gの高さを高く設定するようにすればよい。   Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like without departing from the gist of the present invention, included. For example, in this embodiment, the outer peripheral edge piece 1d and the inner peripheral edge piece 1e are formed on the outer peripheral edge and the inner peripheral edge, but it is not always necessary to form them. Further, the height and length of the protruding piece 1g (extending length to the straight edge) may be determined according to the strength required for the duct D, the size of the duct D, and the like. For example, when the width (opening length) of the duct D is large, in order to increase the strength in the width direction of the duct D, the length of the protruding piece 1g is increased, and the length of the duct D (length in the cylinder center direction) is increased. When the height is large, in order to increase the strength in the length direction of the duct D, the height of the protruding piece 1g may be set high.

本考案の実施形態に係わるコーナーピースの正面図(a)と平面図(b)と底面図(c)。The front view (a) of the corner piece concerning embodiment of this invention, a top view (b), and a bottom view (c). 本考案の実施形態に係わるコーナーピースの背面図。The rear view of the corner piece concerning embodiment of this invention. 図1(a)のA−A断面図。AA sectional drawing of Fig.1 (a). 本考案の実施形態に係わるコーナーピースをダクトに取り付ける手順を示す分解斜視図。The disassembled perspective view which shows the procedure which attaches the corner piece concerning embodiment of this invention to a duct. 本考案の実施形態に係わるコーナーピースをダクトに取り付けた状態を示す斜視図。The perspective view which shows the state which attached the corner piece concerning embodiment of this invention to the duct. 従来のコーナーピースの正面図(a)とB−B断面図(b)。The front view (a) and BB sectional drawing (b) of the conventional corner piece.

符号の説明Explanation of symbols

1 コーナーピース(ダクト用コーナーピース)
1a 平板部
1b 取付孔
1d 外周縁片
1e 内周縁片
1f 切欠き
1g 突出片
10 本体板
10a 共板フランジ部
10b 縁部
D ダクト
D1 フランジ
D2 外角部
D2a 頂部
D2b 平面部

1 Cornerpiece (Cornerpiece for duct)
DESCRIPTION OF SYMBOLS 1a Flat plate part 1b Mounting hole 1d Outer peripheral piece 1e Inner peripheral piece 1f Notch 1g Protruding piece 10 Main body plate 10a Co-plate flange part 10b Edge part D Duct D1 Flange D2 Outer corner part D2a Top part D2b Plane part

Claims (3)

平板状でL字形をしており、板面に対してほぼ垂直な突出片が内角縁に沿って形成され、前記突出片がダクトの外角部に当接した状態で前記ダクトのフランジコーナーに取り付けられるダクト用コーナーピースにおいて、
前記突出片を前記内角縁の延長縁である直線縁まで延出し、かつ、前記突出片の高さを全長にわたってほぼ同じに設定した、
ことを特徴とするダクト用コーナーピース。
A flat and L-shaped projecting piece that is substantially perpendicular to the plate surface is formed along the inner corner edge, and is attached to the flange corner of the duct with the projecting piece in contact with the outer corner of the duct. In a corner piece for a duct,
The protruding piece extends to a straight edge that is an extension edge of the inner corner edge, and the height of the protruding piece is set to be substantially the same over the entire length.
This is a corner piece for ducts.
前記突出片が前記ダクトの外角部に十分当接するように、前記突出片の高さを設定した、
ことを特徴とする請求項1に記載のダクト用コーナーピース。
The height of the protruding piece was set so that the protruding piece sufficiently contacted the outer corner of the duct.
The duct corner piece according to claim 1, wherein:
前記突出片を、前記内角縁および前記直線縁から自由端に向って前記ダクトの中心側に傾斜するように形成した、
ことを特徴とする請求項1または2に記載のダクト用コーナーピース。


The protruding piece is formed so as to be inclined from the inner corner edge and the straight edge toward the free end toward the center of the duct.
The corner piece for a duct according to claim 1 or 2, wherein the corner piece is for a duct.


JP2005009222U 2005-11-04 2005-11-04 Corner piece for duct Expired - Lifetime JP3118260U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005009222U JP3118260U (en) 2005-11-04 2005-11-04 Corner piece for duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005009222U JP3118260U (en) 2005-11-04 2005-11-04 Corner piece for duct

Publications (1)

Publication Number Publication Date
JP3118260U true JP3118260U (en) 2006-01-26

Family

ID=43468551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005009222U Expired - Lifetime JP3118260U (en) 2005-11-04 2005-11-04 Corner piece for duct

Country Status (1)

Country Link
JP (1) JP3118260U (en)

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