JP2016080282A - Airtight ring and ventilator - Google Patents

Airtight ring and ventilator Download PDF

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JP2016080282A
JP2016080282A JP2014213359A JP2014213359A JP2016080282A JP 2016080282 A JP2016080282 A JP 2016080282A JP 2014213359 A JP2014213359 A JP 2014213359A JP 2014213359 A JP2014213359 A JP 2014213359A JP 2016080282 A JP2016080282 A JP 2016080282A
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bulging
thickness
base
airtight ring
ring
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祐介 小田
Yusuke Oda
祐介 小田
小林　大祐
Daisuke Kobayashi
大祐 小林
秀肇 大和
Hidetada Yamato
秀肇 大和
浩之 袴田
Hiroyuki Hakamada
浩之 袴田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an anti-wrinkle airtight ring capable of holding a ventilator against a plurality of kinds of pipes with different inner diameters.SOLUTION: An airtight ring of this invention comprises a resilient-deformable ring-shaped base part 2 formed with a circular opening 3 into which a cylinder part of a ventilator is inserted so as to cause a diameter of the opening 3 to be elongated; a swollen part 4 arranged over an entire circumference of the base part at one end part of the base part 2 to bulge out in a centrifugal direction; and a thin-wall part 6 thinner than a thickness t1 of the swollen part 4 at its thickness t3 that is arranged at a position where a distance from one end of the base part 2 and a distance from the other end become equal to each other, the thin thickness part 6 is bent to cause an outer circumferential surface 2a provided with the swollen part 4 of the base part 2 to be abutted against an outer circumferential surface 2a at the other end of the base part 2 to form a lapped swollen part having a thickness thicker than the thickness t1 of the swollen part 6 over an entire circumference of the base part.SELECTED DRAWING: Figure 2

Description

本発明は換気装置に取り付けられる気密リング及び、当該気密リングを用いた換気装置に関する。   The present invention relates to an airtight ring attached to a ventilator and a ventilator using the airtight ring.

従来、換気装置の換気通路を形成する筒部の外周に取り付けられる気密リングとして、例えば特許文献１のように、換気装置の筒部が挿入される開口と、開口の周縁に形成される基部と、基部より外方へ膨出する膨出部（特許文献１のリップが該当する）とを備え、膨出部は開口に対して偏心して形成されるものがあった（特許文献１のセッティングリングが該当する）。このような気密リングは、膨出部が開口に対して偏心しているので、開口からの膨出部の膨出量が大きいつば部と、つば部よりも膨出量が小さい舌部が形成されている。   Conventionally, as an airtight ring attached to the outer periphery of a cylinder part forming a ventilation passage of a ventilator, for example, as in Patent Document 1, an opening into which a cylinder part of a ventilator is inserted, and a base part formed at the periphery of the opening, And a bulging portion that bulges outward from the base portion (the lip of Patent Literature 1 corresponds), and the bulging portion is formed eccentrically with respect to the opening (Setting Ring of Patent Literature 1) Is applicable). In such an airtight ring, since the bulging portion is eccentric with respect to the opening, a rib portion having a large bulging amount of the bulging portion from the opening and a tongue portion having a bulging amount smaller than the rib portion are formed. ing.

筒部を有する換気装置は、換気口に設けられたパイプに筒部が挿入されることで換気口に取り付けられる。換気装置の換気口への取り付けの際に気密リングは、筒部の外周面とパイプの内周面に圧接されるため、換気装置を換気口に取り付けた状態で保持し、換気装置の気密性能を向上させることができる。   A ventilation device having a cylinder part is attached to a ventilation opening by inserting the cylinder part into a pipe provided in the ventilation opening. The airtight ring is pressed against the outer peripheral surface of the tube and the inner peripheral surface of the pipe when the ventilator is attached to the vent. Therefore, the ventilator is attached to the vent and the airtight performance of the ventilator is maintained. Can be improved.

また、換気口に設けられるパイプには、例えば、日本工業規格（以下ＪＩＳと称する）のＪＩＳＫ６７４１に示すＶＰ管とＶＵ管のように、同じ呼び径であっても管の種類によって内径が異なる。特許文献１の気密リングは、換気口のパイプの内径に応じてつば部の変形量が変わるため、内径の異なる複数種類のパイプに対しても一定の保持力を有し、換気装置の気密性能を向上させることができる。   In addition, pipes provided at the ventilation port have different inner diameters depending on the type of the pipe even if they have the same nominal diameter, such as VP pipe and VU pipe shown in JIS K6741 of Japanese Industrial Standard (hereinafter referred to as JIS). Since the amount of deformation of the collar portion of the airtight ring of Patent Document 1 changes according to the inner diameter of the pipe of the ventilation port, the airtight ring has a constant holding force even for a plurality of types of pipes having different inner diameters, and the airtight performance of the ventilator Can be improved.

特開２００４−１２５２３９号公報JP 2004-125239 A

しかしながら、特許文献１の気密リングは、つば部が室内側に傾いた状態に変形して換気装置を換気口に取り付けた状態で保持するため、つば部が変形する際につば部にしわが発生してしまう可能性がある。特に、内径の小さなパイプほどつば部の変形量が多く、さらに気密リングにしわが発生し易くなる。気密リングにしわが発生すると、換気装置の筒部の外周とパイプの内周面の間に隙間が形成され、しわが発生していない場合に比べて気密性能が悪化してしまう。   However, since the airtight ring of Patent Document 1 is deformed into a state in which the collar portion is inclined toward the indoor side and the ventilation device is attached to the ventilation opening, the collar portion is wrinkled when the collar portion is deformed. There is a possibility that. In particular, the smaller the inner diameter of the pipe, the greater the amount of deformation of the collar portion, and wrinkles are more likely to occur in the hermetic ring. When wrinkles occur in the airtight ring, a gap is formed between the outer periphery of the cylinder portion of the ventilator and the inner peripheral surface of the pipe, and the airtight performance is deteriorated as compared with the case where no wrinkles are generated.

本発明は、上記のような課題を解決するために為されたものであり、内径が異なる複数種類のパイプに対して換気装置を保持することができ、気密性能が高い気密リング及び当該気密リングを用いた換気装置を提供することを目的とする。   The present invention has been made in order to solve the above-described problems, and is capable of holding a ventilator with respect to a plurality of types of pipes having different inner diameters, and has a high airtight performance and the airtight ring. It aims at providing the ventilating device using.

本発明の気密リングは、換気装置の筒部が挿入される円形の開口が形成された弾性材料から成るリング状の基部と、開口の中心軸に並行な方向における基部の一方の端部側に基部の全周に渡って設けられ、中心軸に対して遠心方向に膨出する膨出部と、基部において中心軸に並行な方向における基部の一方の端部からの距離と他方の端部の距離が等しくなるような位置に設けられ、遠心方向における厚みが、遠心方向における厚みよりも薄い薄肉部と、を備えたことを特徴としている。   The hermetic ring of the present invention has a ring-shaped base portion made of an elastic material in which a circular opening into which a cylindrical portion of a ventilator is inserted is formed, and one end portion side of the base portion in a direction parallel to the central axis of the opening. A bulging portion that is provided over the entire circumference of the base portion and bulges in the centrifugal direction with respect to the central axis; and a distance from one end portion of the base portion in a direction parallel to the central axis at the base portion and the other end portion It is provided at a position where the distances are equal to each other, and has a thin wall portion whose thickness in the centrifugal direction is thinner than that in the centrifugal direction.

また、本発明の換気装置は、換気口を形成するパイプに挿入される筒部と、筒部が挿入される円形の開口が形成された弾性材料から成るリング状の基部と、開口の中心軸に並行な方向における基部の一方の端部側に基部の全周に渡って設けられ、中心軸に対して遠心方向に膨出する膨出部と、基部において中心軸に並行な方向における基部の一方の端部からの距離と他方の端部の距離が等しくなるような位置に設けられ、遠心方向における厚みが、前記膨出部の前記遠心方向における厚みよりも薄い薄肉部と、を有する気密リングと、を備えたことを特徴としている。   Further, the ventilator of the present invention includes a cylindrical portion inserted into a pipe forming a ventilation opening, a ring-shaped base portion formed of an elastic material in which a circular opening into which the cylindrical portion is inserted is formed, and a central axis of the opening A bulging portion that is provided on one end side of the base in a direction parallel to the base, and that bulges in the centrifugal direction with respect to the central axis, and a base in the direction parallel to the central axis in the base An air-tight portion provided at a position where the distance from one end portion is equal to the distance from the other end portion, and the thickness in the centrifugal direction is thinner than the thickness in the centrifugal direction of the bulging portion And a ring.

本発明の気密リング及び当該気密リングを用いた換気装置は、気密リングの薄肉部を屈曲し、基部の膨出部が設けられた外周面と、基部の他方の端部の外周面と、が当接することで、遠心方向における厚みが膨出部の厚みよりも厚い重合膨出部を前記基部の全周に渡って形成することができ、重合膨出部の形成の有無によって、気密リングの厚みを変更し気密リングの直径を変更することができるため、換気口を形成するパイプの内径によって気密リングの直径を変更することで、高い気密性能で内径が異なる複数種類に対して換気装置を保持することができる。   The hermetic ring of the present invention and the ventilator using the hermetic ring are formed by bending the thin part of the hermetic ring and the outer peripheral surface provided with the bulging portion of the base and the outer peripheral surface of the other end of the base. By abutting, it is possible to form a polymerized bulging portion whose thickness in the centrifugal direction is thicker than the thickness of the bulging portion over the entire circumference of the base portion. The diameter of the airtight ring can be changed by changing the thickness, so by changing the diameter of the airtight ring according to the inner diameter of the pipe that forms the ventilation port, the ventilator can be used for multiple types with high airtightness and different internal diameters. Can be held.

実施の形態１に係る気密リングの正面図である。3 is a front view of the airtight ring according to Embodiment 1. FIG. 実施の形態１に係る気密リングの図１のＡ−Ａ断面を示す断面図である。It is sectional drawing which shows the AA cross section of the airtight ring which concerns on Embodiment 1 of FIG. 実施の形態１に係る気密リングの図２の領域Ｂを示す拡大断面図である。FIG. 3 is an enlarged cross-sectional view showing a region B of FIG. 2 of the airtight ring according to the first embodiment. 実施の形態１に係る気密リングの薄肉部を屈曲させた状態における断面図である。FIG. 3 is a cross-sectional view of the airtight ring according to Embodiment 1 in a bent state. 実施の形態１に係る気密リングの図４の領域Ｃを示す拡大断面図である。5 is an enlarged cross-sectional view showing a region C in FIG. 4 of the airtight ring according to Embodiment 1. FIG. 実施の形態１に係る換気扇の背面図である。2 is a rear view of the ventilation fan according to Embodiment 1. FIG. 実施の形態１に係る気密リングが重合膨出部を形成せずに取り付けられた換気扇を換気口に装着した状態を示す図６のＤ−Ｄ断面に相当する断面図である。It is sectional drawing equivalent to DD section of FIG. 6 which shows the state which attached the ventilation fan with which the airtight ring which concerns on Embodiment 1 attached without forming the superposition | polymerization bulge part to the ventilation opening. 実施の形態１に係る気密リングが重合膨出部を形成して取り付けられた換気扇を換気口に装着した状態を示す図６のＤ−Ｄ断面に相当する断面図である。It is sectional drawing equivalent to DD cross section of FIG. 6 which shows the state which mounted | wore the ventilation opening with the ventilation fan attached to the airtight ring which concerns on Embodiment 1 in the superposition | polymerization bulge part. 実施の形態２に係る気密リングの重合膨出部を形成しない状態の断面図である。It is sectional drawing of the state which does not form the polymerization bulging part of the airtight ring which concerns on Embodiment 2. FIG. 実施の形態２に係る気密リングの図９の領域Ｅを示す拡大断面図である。It is an expanded sectional view which shows the area | region E of FIG. 9 of the airtight ring which concerns on Embodiment 2. FIG. 実施の形態２に係る気密リングの重合膨出部を形成する状態の断面図である。It is sectional drawing of the state which forms the polymerization bulging part of the airtight ring which concerns on Embodiment 2. FIG. 実施の形態２に係る気密リングの図１１の領域Ｆを示す拡大断面図である。FIG. 12 is an enlarged sectional view showing a region F of FIG. 11 of the airtight ring according to the second embodiment. 実施の形態３に係る屋外フードに気密リングを重合膨出部を形成せずに取り付けた状態を示す断面図である。It is sectional drawing which shows the state which attached the airtight ring to the outdoor hood which concerns on Embodiment 3 without forming a polymerization bulge part.

実施の形態１．
図１は、実施の形態１に係る気密リングの正面図である。図２は、実施の形態１に係る気密リングの図１のＡ−Ａ断面を示す断面図である。気密リング１は、略中央に略円形の開口３が形成されたリング状の基部２から構成されている。開口３の直径Ｒ１は、後述する換気扇１０の筒部１１ａの外径よりも短い。 Embodiment 1 FIG.
1 is a front view of an airtight ring according to Embodiment 1. FIG. 2 is a cross-sectional view showing the AA cross section of FIG. 1 of the airtight ring according to the first embodiment. The hermetic ring 1 is composed of a ring-shaped base portion 2 having a substantially circular opening 3 formed in a substantially central portion. The diameter R1 of the opening 3 is shorter than the outer diameter of the cylinder part 11a of the ventilation fan 10 mentioned later.

気密リング１の基部２は、外力がかかることによって弾性変形する弾性材料からなり、例えばエラストマー樹脂、クロロプレンゴム、エチレンプロピレンゴム（ＥＰＤＭ）、シリコン系ゴムから形成されている。このため、気密リング１は容易に弾性変形させることができ、開口３の直径を筒部１１ａの外径よりも拡大させ、換気扇１０に気密リング１を装着することができる。また、弾性変形の復元力によって、換気扇１０に気密リング１を装着させた時に、気密リング１は筒部１１ａの外周面を押圧する。   The base 2 of the airtight ring 1 is made of an elastic material that is elastically deformed when an external force is applied, and is made of, for example, an elastomer resin, chloroprene rubber, ethylene propylene rubber (EPDM), or silicon rubber. For this reason, the hermetic ring 1 can be easily elastically deformed, the diameter of the opening 3 can be made larger than the outer diameter of the cylindrical part 11a, and the hermetic ring 1 can be attached to the ventilation fan 10. Further, when the airtight ring 1 is attached to the ventilation fan 10 by the elastic deformation restoring force, the airtight ring 1 presses the outer peripheral surface of the cylindrical portion 11a.

図３は、実施の形態１に係る気密リングの図２の領域Ｂを示す拡大断面図である。基部２には、基部２から開口３の中心軸に対して遠心方向に膨出する２つの膨出部が基部２の全周に渡って形成されており、開口３の中心軸に対して並行な方向における一方の端部側の膨出部を第一の膨出部４と称し、他方の端部側の膨出部を第二の膨出部５と称する。また、第一の膨出部４と第二の膨出部５との間には基部２から開口３の中心軸に対して遠心方向に膨出されていない箇所が存在し、この箇所を薄肉部６と称する。なお、薄肉部６は、少なくとも、開口３の中心軸に対して並行な方向における一方の端部からの距離Ｌ１と他方の端部からの距離Ｌ２とが等距離になるような位置には設けられている。また、開口３の中心軸に対して平行な向きにおける第一の膨出部４の幅Ｌ３と第二の膨出部５の幅Ｌ４は、少なくとも第二の膨出部５の幅Ｌ４の長さが第一の膨出部４の幅の長さＬ３以上になるよう形成されている。   3 is an enlarged cross-sectional view showing a region B in FIG. 2 of the airtight ring according to the first embodiment. The base 2 is formed with two bulging portions that bulge in the centrifugal direction from the base 2 with respect to the central axis of the opening 3 over the entire circumference of the base 2, and is parallel to the central axis of the opening 3. The bulging portion on one end side in one direction is referred to as a first bulging portion 4, and the bulging portion on the other end side is referred to as a second bulging portion 5. Further, there is a portion that is not bulged in the centrifugal direction from the base 2 to the central axis of the opening 3 between the first bulging portion 4 and the second bulging portion 5, and this portion is thin-walled. This will be referred to as part 6. The thin-walled portion 6 is provided at a position at least so that the distance L1 from one end and the distance L2 from the other end in the direction parallel to the central axis of the opening 3 are equal. It has been. Further, the width L3 of the first bulge portion 4 and the width L4 of the second bulge portion 5 in the direction parallel to the central axis of the opening 3 are at least the length of the width L4 of the second bulge portion 5. Is formed so as to be equal to or longer than the length L3 of the width of the first bulging portion 4.

基部２の遠心側の面を外周面２ａとし、求心側の面を内周面２ｂとする。基部２の外周面２ａのうち、第一の膨出部４が形成されている箇所には第一の嵌合部７が形成されており、第二の膨出部５が形成されている箇所には第二の嵌合部８が形成されている。また、基部２の内周面２ｂは平らになっている。   The surface on the distal side of the base 2 is referred to as an outer peripheral surface 2a, and the surface on the centripetal side is referred to as an inner peripheral surface 2b. Of the outer peripheral surface 2a of the base portion 2, the first fitting portion 7 is formed at the portion where the first bulging portion 4 is formed, and the second bulging portion 5 is formed. A second fitting portion 8 is formed in the. Moreover, the inner peripheral surface 2b of the base 2 is flat.

基部２の遠心方向の断面、つまり図１のＡ−Ａ断面において、内周面２ｂから第一の嵌合部７の最も遠心側に位置する点である第一の嵌合部の遠心点７ａまでの長さを第一の膨出部４の厚みｔ１、内周面２ｂから第二の嵌合部８の最も遠心側に位置する点である第二の嵌合部の遠心点８ａまでの長さを第二の膨出部５の厚みｔ２、内周面２ｂから薄肉部６の外周面２ａまでの長さを薄肉部６の厚みｔ３とすると、ｔ１＞ｔ２＞ｔ３の条件を満たすように気密リング１は形成されている。   Centrifugal point 7a of the first fitting portion which is a point located on the most distal side of the first fitting portion 7 from the inner peripheral surface 2b in the cross section in the centrifugal direction of the base portion 2, that is, the AA cross section of FIG. The length from the thickness t1 of the first bulging portion 4 to the centrifugal point 8a of the second fitting portion, which is the point located on the most distal side of the second fitting portion 8 from the inner peripheral surface 2b. When the length is the thickness t2 of the second bulging portion 5 and the length from the inner peripheral surface 2b to the outer peripheral surface 2a of the thin portion 6 is the thickness t3 of the thin portion 6, the condition of t1> t2> t3 is satisfied. The airtight ring 1 is formed.

また、気密リング１の第一の膨出部４が形成された部分の外径Ｒ２は、図２に示すように、所定の位置の第一の嵌合部の遠心点７ａと、当該所定の位置から開口３を挟んで反対側の位置の第一の嵌合部の遠心点７ａと間の長さが該当する。つまり、気密リング１の第一の膨出部４が形成された部分の外径Ｒ２は、開口３の直径Ｒ１と、第一の膨出部４の厚みｔ１の二倍との和である。また、気密リング１の第二の膨出部５が形成された部分の外径Ｒ３は、所定の位置の第二の嵌合部の遠心点８ａと、当該所定の位置から開口３を挟んで反対側の位置の第二の嵌合部の遠心点８ａと間の長さが該当する。つまり、気密リング１の第二の膨出部５が形成された部分の外径Ｒ３は、開口３の直径Ｒ１と、第二の膨出部５の厚みｔ２の二倍との和である。   Further, as shown in FIG. 2, the outer diameter R2 of the portion where the first bulging portion 4 of the airtight ring 1 is formed has a centrifugal point 7a of the first fitting portion at a predetermined position and the predetermined predetermined portion. The distance from the position to the centrifugal point 7a of the first fitting portion on the opposite side across the opening 3 corresponds. That is, the outer diameter R2 of the portion where the first bulging portion 4 of the airtight ring 1 is formed is the sum of the diameter R1 of the opening 3 and twice the thickness t1 of the first bulging portion 4. Further, the outer diameter R3 of the portion where the second bulging portion 5 of the airtight ring 1 is formed has the centrifugal point 8a of the second fitting portion at a predetermined position and the opening 3 from the predetermined position. The length between the second fitting portion at the opposite side and the centrifugal point 8a corresponds to this length. That is, the outer diameter R3 of the portion of the airtight ring 1 where the second bulging portion 5 is formed is the sum of the diameter R1 of the opening 3 and twice the thickness t2 of the second bulging portion 5.

図４は、実施の形態１に係る気密リングの薄肉部を屈曲させた状態における断面図である。図５は、実施の形態１に係る気密リングの図４の領域Ｃを示す拡大断面図である。前述のように気密リング１は容易に弾性変形させることができ、薄肉部６は図３に示す矢印の方向へ屈曲させることが可能である。なお、図４は、気密リング１の薄肉部６を屈曲させた状態で、図１のＡ−Ａ断面に相当する箇所の断面図である。   FIG. 4 is a cross-sectional view of the airtight ring according to Embodiment 1 in a bent state. FIG. 5 is an enlarged cross-sectional view showing a region C in FIG. 4 of the airtight ring according to the first embodiment. As described above, the airtight ring 1 can be easily elastically deformed, and the thin portion 6 can be bent in the direction of the arrow shown in FIG. 4 is a cross-sectional view of a portion corresponding to the AA cross section of FIG. 1 in a state where the thin portion 6 of the hermetic ring 1 is bent.

図４及び図５のように薄肉部６を屈曲させることで第一の嵌合部７と第二の嵌合部８が当接し、嵌合することで、第二の膨出部５の遠心側に第一の膨出部４が重なり、基部２には重合膨出部９が形成される。薄肉部６を屈曲させた際に、第一の膨出部４が第二の膨出部５よりも遠心側に位置しており、開口３の中心軸に対して平行な向きにおいて第一の膨出部４側の内周面２ｂが気密リング１の遠心側の面を構成しており、第二の膨出部５側の内周面２ｂが求心側の面を構成している。なお、第一の膨出部４と第二の膨出部５が重なり重合膨出部９を形成し、開口３の中心軸に対して平行な向きにおいて少なくとも第二の膨出部５の幅Ｌ４の長さが第一の膨出部４の幅Ｌ３の長さ以上になるよう第一の膨出部４と第二の膨出部５は形成されているため、開口３の中心軸に対して平行な向きにおける重合膨出部９の幅Ｌ５は、少なくとも第一の膨出部４の幅Ｌ４と略等しくなる。   As shown in FIGS. 4 and 5, the first fitting portion 7 and the second fitting portion 8 are brought into contact with each other by bending the thin portion 6, and the second bulging portion 5 is centrifuged. A first bulging portion 4 is overlapped on the side, and a polymerization bulging portion 9 is formed on the base portion 2. When the thin wall portion 6 is bent, the first bulging portion 4 is located on the distal side with respect to the second bulging portion 5, and the first bulging portion 4 is oriented in a direction parallel to the central axis of the opening 3. The inner peripheral surface 2b on the bulging portion 4 side constitutes the centrifugal side surface of the airtight ring 1, and the inner peripheral surface 2b on the second bulging portion 5 side constitutes the centripetal side surface. The first bulging portion 4 and the second bulging portion 5 overlap to form a polymerization bulging portion 9, and at least the width of the second bulging portion 5 in the direction parallel to the central axis of the opening 3. Since the first bulging portion 4 and the second bulging portion 5 are formed so that the length of L4 is equal to or greater than the length L3 of the first bulging portion 4, the central axis of the opening 3 The width L5 of the polymerization bulge portion 9 in the parallel direction is at least substantially equal to the width L4 of the first bulge portion 4.

また、重合膨出部９が形成される位置において遠心側の面から求心側の面までの長さを重合膨出部９の厚みｔ４とすると、重合膨出部９は第一の膨出部４と第二の膨出部５が重なり合うことで形成されているため、重合膨出部９の厚みｔ４は第一の膨出部４の厚みｔ１及び第二の膨出部５の厚みｔ２よりも厚く、ｔ４＞ｔ１＞ｔ２＞ｔ３の条件を満たしている。なお、重合膨出部９の厚みｔ４は、第一の膨出部４の厚みｔ１と、第二の膨出部５の厚みｔ２と、第一の嵌合部７及び第二の嵌合部８の形状によって決まる。   When the length from the centrifugal side surface to the centripetal side surface is the thickness t4 of the polymerization bulge portion 9 at the position where the polymerization bulge portion 9 is formed, the polymerization bulge portion 9 is the first bulge portion. 4 and the second bulging portion 5 are formed by overlapping, the thickness t4 of the polymerization bulging portion 9 is greater than the thickness t1 of the first bulging portion 4 and the thickness t2 of the second bulging portion 5. It is also thick and satisfies the condition of t4> t1> t2> t3. In addition, the thickness t4 of the polymerization bulge part 9 is the thickness t1 of the first bulge part 4, the thickness t2 of the second bulge part 5, the first fitting part 7 and the second fitting part. 8 shape.

さらに、薄肉部６が屈曲され重合膨出部９が形成されている場合の気密リング１の外径Ｒ４は、図４に示すように、所定の位置の遠心側の面と、当該所定の位置から開口３を挟んで反対側の遠心側の面と、の間の長さが該当する。つまり、重合膨出部９が形成されている場合の気密リング１の外径Ｒ４は、開口３の直径Ｒ１と、重合膨出部９の厚みｔ４の二倍との和である。   Further, the outer diameter R4 of the hermetic ring 1 when the thin wall portion 6 is bent and the bulge portion 9 is formed includes a centrifugal side surface at a predetermined position and the predetermined position as shown in FIG. The distance between the opposite centrifugal side surface with the opening 3 interposed therebetween. That is, the outer diameter R4 of the airtight ring 1 when the polymerization bulge portion 9 is formed is the sum of the diameter R1 of the opening 3 and twice the thickness t4 of the polymerization bulge portion 9.

次に気密リング１が取り付けられる換気装置の例として、換気扇１０について説明する。図６は、実施の形態１に係る換気扇の背面図である。図７は、実施の形態１に係る気密リングが重合膨出部を形成せずに取り付けられた換気扇を換気口に装着した状態を示す図６のＤ−Ｄ断面に相当する断面図である。図８は、実施の形態１に係る気密リングが重合膨出部を形成して取り付けられた換気扇を換気口に装着した状態を示す図６のＤ−Ｄ断面に相当する断面図である。換気扇１０は、気密リング１と、換気扇フレーム１１と、ルーバー１２と、モーター１３と、ファン１４とから構成されている。また、換気扇フレーム１１は筒部１１ａとフランジ部１１ｂが形成されている。なお、図７及び図８において、換気扇フレーム１１に筒部１１ａが形成されている側を前方側、フランジ部１１ｂが形成されている側を後方側と称する。   Next, the ventilation fan 10 is demonstrated as an example of the ventilator to which the airtight ring 1 is attached. 6 is a rear view of the ventilation fan according to Embodiment 1. FIG. FIG. 7 is a cross-sectional view corresponding to the DD cross section of FIG. 6, showing a state in which a ventilation fan attached without the airtight ring according to Embodiment 1 forming a polymerization bulge is attached to the ventilation opening. FIG. 8 is a cross-sectional view corresponding to the DD cross section of FIG. 6 showing a state in which a ventilation fan attached with the airtight ring according to Embodiment 1 forming a polymerization bulge is attached to the ventilation opening. The ventilation fan 10 includes an airtight ring 1, a ventilation fan frame 11, a louver 12, a motor 13, and a fan 14. Further, the ventilation fan frame 11 is formed with a cylindrical portion 11a and a flange portion 11b. 7 and 8, the side on which the cylinder portion 11a is formed on the ventilation fan frame 11 is referred to as a front side, and the side on which the flange portion 11b is formed is referred to as a rear side.

筒部１１ａは、略円筒形状であり内部に空間が形成され、両底面は開口している。筒部１１ａの内径はモーター１３の外径及びファン１４の直径より大きい。また、前述のように筒部１１ａの外径は気密リング１の開口３の直径と略等しく、筒部１１ａの外周面と気密リング１の基部２の内周面２ｂが接するように、筒部１１ａに気密リング１は取り付けられている。   The cylinder part 11a has a substantially cylindrical shape, a space is formed inside, and both bottom surfaces are open. The inner diameter of the cylindrical portion 11 a is larger than the outer diameter of the motor 13 and the diameter of the fan 14. Further, as described above, the outer diameter of the cylindrical portion 11a is substantially equal to the diameter of the opening 3 of the hermetic ring 1, and the outer peripheral surface of the cylindrical portion 11a and the inner peripheral surface 2b of the base portion 2 of the hermetic ring 1 are in contact. The airtight ring 1 is attached to 11a.

フランジ部１１ｂは、筒部１１ａの一方の底面側の端部より筒部１１の中心軸に対して遠心方向に突出しており、筒部１１ａの中心軸に対して垂直に形成されている。また、フランジ部１１ｂには、一対の固定孔（図示省略）が設けられている。また、フランジ部１１ｂの前方側にはルーバー１２がフランジ部１１ｂを覆うように取り付けられている。フランジ部１１ｂとルーバー１２は、例えばルーバー１２側に爪が、フランジ部１１ｂ側に爪受け部がそれぞれ設けられているなど、フランジ部１１ｂにルーバー１２が固定できるようになっている。   The flange portion 11b protrudes in the centrifugal direction with respect to the central axis of the cylindrical portion 11 from an end portion on one bottom surface side of the cylindrical portion 11a, and is formed perpendicular to the central axis of the cylindrical portion 11a. The flange portion 11b is provided with a pair of fixing holes (not shown). A louver 12 is attached to the front side of the flange portion 11b so as to cover the flange portion 11b. The flange portion 11b and the louver 12 are configured such that the louver 12 can be fixed to the flange portion 11b, for example, a claw is provided on the louver 12 side and a claw receiving portion is provided on the flange portion 11b side.

モーター１３は、モーター本体１３ａと、モーター本体１３ａから突出するモーターシャフト１３ｂを有しており、モーターシャフト１３ｂが前方側に突出するようにモーター本体１３ａは筒部１１ａの内部に固定保持されている。モーター本体１３ａには、図示していないが電気配線が接続されており、電気配線を通じて商用電源等の電源から電力の供給を受けて、モーターシャフト１３ｂを回転させることができる。また、ファン１４は、モーターシャフト１３ｂに取り付けられており、モーターシャフト１３ｂと共に回転する。回転したファン１４は、換気扇１０内部に、前方側から後方側へ流れる気流が生じさせる。   The motor 13 has a motor main body 13a and a motor shaft 13b protruding from the motor main body 13a. The motor main body 13a is fixedly held inside the cylindrical portion 11a so that the motor shaft 13b protrudes forward. . Although not shown in the figure, electric wiring is connected to the motor main body 13a, and the motor shaft 13b can be rotated by receiving electric power from a power source such as a commercial power source through the electric wiring. The fan 14 is attached to the motor shaft 13b and rotates together with the motor shaft 13b. The rotated fan 14 generates an airflow flowing from the front side to the rear side in the ventilation fan 10.

また、気密リング１が筒部１１ａに重合膨出部９を形成せずに取り付けられた場合には、前方側に第二の膨出部５が位置し、後方側に第一の膨出部４が位置するように気密リング１は筒部１１ａに取り付けられている。この状態から、気密リング１を重合膨出部９を形成する状態に変更する場合には、第一の膨出部４を後方側から前方側に移動させるように薄肉部６を屈曲させ、第一の嵌合部７と第二の嵌合部８を嵌合させて重合膨出部９を形成すればよい。この時、重合膨出部９よりも屈曲された薄肉部６は後方側に位置する。なお、気密リング１を重合膨出部９を形成する状態から、重合膨出部９を形成しない状態に変更する場合には、重合膨出部９を形成している第一の膨出部４を前方側から後方側に移動させるように屈曲した薄肉部６を伸長させればよい。   Further, when the airtight ring 1 is attached to the cylindrical portion 11a without forming the polymerization bulge portion 9, the second bulge portion 5 is located on the front side and the first bulge portion on the rear side. The hermetic ring 1 is attached to the cylinder part 11a so that 4 is located. When the airtight ring 1 is changed from this state to a state in which the polymerization bulge portion 9 is formed, the thin portion 6 is bent so that the first bulge portion 4 is moved from the rear side to the front side, The overlapped portion 9 may be formed by fitting the one fitting portion 7 and the second fitting portion 8 together. At this time, the thin wall portion 6 bent from the polymerization bulge portion 9 is located on the rear side. When the airtight ring 1 is changed from a state in which the polymerization bulge portion 9 is formed to a state in which the polymerization bulge portion 9 is not formed, the first bulge portion 4 forming the polymerization bulge portion 9 is used. The thin-walled portion 6 that is bent so as to move from the front side to the rear side may be extended.

次に気密リング１が取り付けられた換気扇１０を換気口２０に装着する方法について説明する。換気口２０は、建築物の壁面２１にパイプ２２が挿入されることによって形成されており、室内空間２３と室外空間２４を連通させている。また、壁面２１のうち、換気扇１０を換気口２０に装着した際に固定孔と対応する箇所にはねじ孔（図示省略）が設けられている。   Next, a method for mounting the ventilation fan 10 to which the airtight ring 1 is attached to the ventilation opening 20 will be described. The ventilation port 20 is formed by inserting a pipe 22 into a wall surface 21 of a building, and allows the indoor space 23 and the outdoor space 24 to communicate with each other. Further, a screw hole (not shown) is provided in a portion of the wall surface 21 corresponding to the fixing hole when the ventilation fan 10 is attached to the ventilation port 20.

パイプ２２には、実施の形態１では同じ呼び径のＶＵ管、ＶＰ管又はアルミフレキシブル管の何れか一つが用いられることを想定している。ＶＵ管と、ＶＰ管並びにアルミフレキシブル管と、は同じ呼び径の管を用いる場合でもその管の内径は異なる。例えば、呼び径１００の管の場合では、ＶＰ管又はアルミフレキシブル管の場合では内径が約１００ｍｍであるのに対して、ＶＵ管の場合は約１０７ｍｍである。このように同じ呼び径であってもパイプ２２に使用する管の種類によって、パイプ２２の内径は異なる。   In the first embodiment, it is assumed that any one of the VU pipe, the VP pipe, and the aluminum flexible pipe having the same nominal diameter is used for the pipe 22. Even when VU pipes, VP pipes, and aluminum flexible pipes have the same nominal diameter, the inner diameters of the pipes are different. For example, in the case of a pipe having a nominal diameter of 100, the inner diameter is about 100 mm in the case of a VP pipe or an aluminum flexible pipe, whereas it is about 107 mm in the case of a VU pipe. As described above, the inner diameter of the pipe 22 varies depending on the type of pipe used for the pipe 22 even if the nominal diameter is the same.

また、重合膨出部９が形成されていない場合における、気密リング１の第一の膨出部４が形成された部分の外径Ｒ２と、第二の膨出部５が形成された部分の外径Ｒ３と、重合膨出部９が形成されている場合の気密リング１の外径Ｒ４は、気密リング１を取り付けられた換気扇１０が装着する換気口２０に使用されると推測されるパイプ２２の内径に応じて決まる。例えば、換気口２０に使用されるパイプ２２が、呼び径１００のＶＰ管、ＶＵ管又はアルミフレキシブル管の何れかが用いられる場合について説明する。この場合、気密リング１の第二の膨出部５が形成された部分の外径Ｒ３は、パイプ２２がＶＰ管又はアルミフレキシブル管の場合の内径１００ｍｍよりも短くなるように気密リング１は形成されている。また、第一の膨出部４が形成された部分の外径Ｒ２は、パイプ２２がＶＰ管又はアルミフレキシブル管の場合の内径１００ｍｍよりも長くなり、パイプ２２がＶＵ管の場合の内径１０７ｍｍよりも短くなるように気密リング１は形成されている。さらに、重合膨出部９が形成されている場合の気密リング１の外径Ｒ４は、パイプ２２がＶＵ管の場合の内径１０７ｍｍよりも長くなるように気密リング１は形成されている。   Further, when the polymerization bulge portion 9 is not formed, the outer diameter R2 of the portion where the first bulge portion 4 of the airtight ring 1 is formed and the portion where the second bulge portion 5 is formed. The outer diameter R3 and the outer diameter R4 of the airtight ring 1 in the case where the polymerization bulging portion 9 is formed are assumed to be used for the ventilation opening 20 to which the ventilation fan 10 to which the airtight ring 1 is attached is attached. It depends on the inner diameter of 22. For example, the case where the pipe 22 used for the ventilation port 20 is any one of a VP pipe, a VU pipe, or an aluminum flexible pipe having a nominal diameter of 100 will be described. In this case, the airtight ring 1 is formed so that the outer diameter R3 of the portion where the second bulging portion 5 of the airtight ring 1 is formed is shorter than the inner diameter 100 mm when the pipe 22 is a VP pipe or an aluminum flexible pipe. Has been. Further, the outer diameter R2 of the portion where the first bulging portion 4 is formed is longer than the inner diameter of 100 mm when the pipe 22 is a VP pipe or an aluminum flexible pipe, and the inner diameter is 107 mm when the pipe 22 is a VU pipe. The airtight ring 1 is formed so as to be shorter. Furthermore, the airtight ring 1 is formed so that the outer diameter R4 of the airtight ring 1 when the polymerization bulging portion 9 is formed is longer than the inner diameter 107 mm when the pipe 22 is a VU pipe.

パイプ２２にＶＰ管又はアルミフレキシブル管を使用する場合において、気密リング１が取り付けられた換気扇１０を換気口２０に装着する方法について図７を用いて説明する。まず、気密リング１は、薄肉部６が屈曲されず、重合膨出部９が形成しない状態にされる。次に換気扇１０は、筒部１１ａの後方側の部分を室内空間２３側から換気口２０に挿入され、室外空間２４に向けて押し込まれる。さらに、筒部１１ａを換気口２０に押し込むと、フランジ部１１ｂの後方側の面が壁面２１に当接する。フランジ部１１ｂが壁面２１に当接した状態で、固定孔にねじを挿入し、壁面２１に設けられたねじ孔に固定孔を介してねじを螺合させることによって、換気扇１０は換気口２０に装着される。   In the case of using a VP pipe or an aluminum flexible pipe for the pipe 22, a method for mounting the ventilation fan 10 to which the airtight ring 1 is attached to the ventilation opening 20 will be described with reference to FIG. First, the airtight ring 1 is brought into a state where the thin portion 6 is not bent and the polymerization bulge portion 9 is not formed. Next, the ventilation fan 10 is inserted into the ventilation opening 20 from the indoor space 23 side at the rear side of the cylindrical portion 11 a and pushed toward the outdoor space 24. Furthermore, when the cylinder part 11 a is pushed into the ventilation port 20, the rear surface of the flange part 11 b comes into contact with the wall surface 21. With the flange portion 11 b in contact with the wall surface 21, a screw is inserted into the fixing hole, and the screw is screwed into the screw hole provided in the wall surface 21 via the fixing hole, whereby the ventilation fan 10 is fitted to the ventilation port 20. Installed.

第一の膨出部４が形成された部分の外径Ｒ２は、パイプ２２に使用されているＶＰ管又はアルミフレキシブル管の内径よりも長いため、筒部１１ａが換気口２０に押し込まれる際に、第一の膨出部４は外径Ｒ２が縮むように開口３の中心軸に対して求心方向へ圧縮されて、弾性変形する。弾性変形した第一の膨出部４はパイプ２２の内周面を押圧するため、気密リング１の第一の膨出部４はパイプ２２の内周面と筒部１１ａの外周面に密着し、換気扇１０は換気口２０に対して保持されている。第一の膨出部４は、気密リング１の全周に渡って設けられているため、気密リング１はシールの役割を果たし、換気扇１０の気密性能及び水密性能を向上させる効果を奏している。   Since the outer diameter R2 of the portion where the first bulging portion 4 is formed is longer than the inner diameter of the VP pipe or aluminum flexible pipe used for the pipe 22, the cylindrical portion 11a is pushed into the ventilation port 20. The first bulging portion 4 is compressed in the centripetal direction with respect to the central axis of the opening 3 so that the outer diameter R2 is contracted, and is elastically deformed. Since the elastically deformed first bulging portion 4 presses the inner peripheral surface of the pipe 22, the first bulging portion 4 of the airtight ring 1 is in close contact with the inner peripheral surface of the pipe 22 and the outer peripheral surface of the cylindrical portion 11a. The ventilation fan 10 is held with respect to the ventilation opening 20. Since the 1st bulging part 4 is provided over the perimeter of the airtight ring 1, the airtight ring 1 plays the role of a seal | sticker and has the effect of improving the airtight performance and the watertight performance of the ventilation fan 10. .

気密リング１がパイプ２２の内周面と筒部１１ａの外周面に密着し、ねじによって換気扇１０が換気口２０に装着された状態で、ファン１４を回転させると、室内空間２３の空気を室外空間２４へ排気する気流が形成される。ファン１４が回転している際に、気密リング１はファン１４の回転から生じる振動を吸収し、室外空間２４からパイプ２２内部へ侵入した雨水等の水が室内空間２３へ侵入することを防止することができる。   When the airtight ring 1 is in close contact with the inner peripheral surface of the pipe 22 and the outer peripheral surface of the cylindrical portion 11a, and the fan 14 is rotated in a state where the ventilation fan 10 is attached to the ventilation port 20 with screws, the air in the indoor space 23 is removed from the outdoor space. An air flow exhausting to the space 24 is formed. When the fan 14 is rotating, the hermetic ring 1 absorbs vibrations generated by the rotation of the fan 14 and prevents water such as rainwater that has entered the pipe 22 from the outdoor space 24 from entering the indoor space 23. be able to.

パイプ２２にＶＵ管を使用する場合において、気密リング１が取り付けられた換気扇１０を換気口２０に装着する方法について図８を用いて説明する。まず、気密リング１は、薄肉部６が屈曲され、重合膨出部９が形成する状態にされる。以降は、ＶＰ管又はアルミフレキシブル管を使用する場合と同様の手順で、筒部１１ａは換気口２０に挿入され、フランジ部１１ｂが壁面２１に当接し、壁面２１に設けられたねじ孔に固定孔を介してねじを螺合させることによって、換気扇１０は換気口２０に装着される。   When using a VU pipe for the pipe 22, a method for mounting the ventilation fan 10 to which the airtight ring 1 is attached to the ventilation opening 20 will be described with reference to FIG. 8. First, the airtight ring 1 is brought into a state in which the thin portion 6 is bent and the polymerization bulge portion 9 is formed. Thereafter, in the same procedure as when using a VP pipe or an aluminum flexible pipe, the cylinder portion 11a is inserted into the ventilation port 20, the flange portion 11b abuts against the wall surface 21, and is fixed to a screw hole provided on the wall surface 21. The ventilation fan 10 is attached to the ventilation opening 20 by screwing screws through the holes.

重合膨出部９が形成されている場合の気密リング１の外径Ｒ４は、ＶＵ管の内径よりも長いため、筒部１１ａが換気口２０に押し込まれる際に重合膨出部９は外径Ｒ４が縮むように開口３の中心軸に対して求心方向へ圧縮されて、弾性変形する。弾性変形した重合膨出部９はパイプ２２の内周面を押圧するため、気密リング１の重合膨出部９はパイプ２２の内周面と筒部１１ａの外周面に密着し、換気扇１０は換気口２０に対して保持されている。重合膨出部９は、気密リング１の全周に渡って設けられているため、気密リング１はシールの役割を果たし、換気扇１０の気密性能または水密性能を向上させる効果を奏している。   Since the outer diameter R4 of the airtight ring 1 when the polymerization bulge portion 9 is formed is longer than the inner diameter of the VU pipe, the polymerization bulge portion 9 has an outer diameter when the cylinder portion 11a is pushed into the ventilation port 20. R4 is compressed in the centripetal direction with respect to the central axis of the opening 3 so as to contract, and elastically deforms. Since the bulging portion 9 that is elastically deformed presses the inner circumferential surface of the pipe 22, the bulging portion 9 of the airtight ring 1 is in close contact with the inner circumferential surface of the pipe 22 and the outer circumferential surface of the cylindrical portion 11a. It is held against the vent 20. Since the polymerization bulge portion 9 is provided over the entire circumference of the airtight ring 1, the airtight ring 1 serves as a seal, and has an effect of improving the airtight performance or the watertight performance of the ventilation fan 10.

パイプ２２にＶＵ管を使用する場合においても、気密リング１がパイプ２２の内周面と筒部１１ａの外周面に密着し、ねじによって換気扇１０が換気口２０に装着された状態で、ファン１４を回転させると、室内空間２３の空気を室外空間２４へ排気する気流が形成される。このため、同様に気密リング１はファン１４の回転から生じる振動を吸収し、室外空間２４からパイプ２２内部へ侵入した雨水等の水が室内空間２３へ侵入することを防止することができる。   Even when a VU pipe is used for the pipe 22, the airtight ring 1 is in close contact with the inner peripheral surface of the pipe 22 and the outer peripheral surface of the cylindrical portion 11 a, and the fan 14 is attached to the ventilation port 20 with screws. Is rotated, an airflow is formed to exhaust the air in the indoor space 23 to the outdoor space 24. For this reason, similarly, the airtight ring 1 can absorb vibrations generated by the rotation of the fan 14, and can prevent water such as rainwater that has entered the pipe 22 from the outdoor space 24 from entering the indoor space 23.

また、換気扇１０の筒部１１ａは、前方側から後方側へ向かう挿入方向で挿入されるため、重合膨出部９を形成している第一の膨出部４はパイプ２２の内周面との間に後方側から前方側へ向かう方向に摩擦力が生じる。実施の形態１の重合膨出部９が形成する場合の気密リング１では、薄肉部６が重合膨出部９よりも換気扇１０の後方側、つまり挿入方向の先端側に位置しており、重合膨出部９を形成する状態から重合膨出部９を形成しない状態に変更する場合には重合膨出部９を形成している第一の膨出部４を前方側から後方側に移動させるように薄肉部６を伸長させるため、摩擦力の向きと重合膨出部９を形成しない状態に変更する際に第一の膨出部４を移動させる向きが逆方向である。このため、換気扇１０を換気口２０に挿入する際に、摩擦力によって気密リング１が重合膨出部９を形成しない状態になってしまうことを防ぐことができる。   Moreover, since the cylinder part 11a of the ventilation fan 10 is inserted in the insertion direction from the front side to the rear side, the first bulging part 4 forming the overlapping bulging part 9 is connected to the inner peripheral surface of the pipe 22. During this period, a frictional force is generated in the direction from the rear side to the front side. In the airtight ring 1 in the case where the polymerization bulge portion 9 of the first embodiment is formed, the thin portion 6 is located on the rear side of the ventilation fan 10 relative to the polymerization bulge portion 9, that is, on the distal end side in the insertion direction. When changing from the state where the bulging part 9 is formed to the state where the polymerization bulging part 9 is not formed, the first bulging part 4 forming the polymerization bulging part 9 is moved from the front side to the rear side. In order to extend the thin-walled portion 6 as described above, the direction in which the first bulging portion 4 is moved when changing the direction of the frictional force and the state in which the polymerization bulging portion 9 is not formed is opposite. For this reason, when inserting the ventilation fan 10 in the ventilation port 20, it can prevent that the airtight ring 1 will be in the state which does not form the superposition | polymerization bulging part 9 by frictional force.

さらに、第一の嵌合部７と第二の嵌合部８が嵌合して重合膨出部９を形成するため、換気扇１０を換気口２０に挿入する際に重合膨出部９を形成する第一の膨出部４と第二の膨出部５とが位置ずれを起こしてしまうことを防止する。   Further, since the first fitting portion 7 and the second fitting portion 8 are fitted to form the superposed bulge portion 9, the superposed bulge portion 9 is formed when the ventilation fan 10 is inserted into the ventilation port 20. This prevents the first bulging portion 4 and the second bulging portion 5 from being displaced.

このように実施の形態１に係る気密リング１は、換気扇１０がＶＰ管又はアルミフレキシブル管を使用して形成された換気口２０に取り付けられる場合は薄肉部６を伸長させて重合膨出部９を形成しない状態にし、換気扇１０がＶＵ管を使用して形成された換気口に取り付けられる場合は薄肉部６を屈曲させて重合膨出部９を形成する状態にすることによって、内径が異なる複数種類のパイプに対して換気装置を保持することができる。   As described above, when the ventilation fan 10 is attached to the ventilation port 20 formed using the VP pipe or the aluminum flexible pipe, the airtight ring 1 according to the first embodiment extends the thin-walled portion 6 to overlap the bulge portion 9. When the ventilation fan 10 is attached to a ventilation port formed using a VU tube, the thin wall portion 6 is bent to form the polymerization bulge portion 9, thereby forming a plurality of different inner diameters. Ventilators can be held against different types of pipes.

また、実施の形態１に係る気密リング１は、重合膨出部９を形成しない状態の直径Ｒ３は、重合膨出部９を形成した状態の直径Ｒ４よりも短い。このため、内径が重合膨出部９を形成しない場合の直径Ｒ３よりも小さいパイプ２２が換気口２０を形成する場合には、気密リング１を重合膨出部９を形成しない状態にするなど、換気口２０を形成するパイプの種類によって気密リング１の直径を可変させることができ、特許文献１のような直径が一定の気密リングに比べて、換気口２０を形成するパイプ２２の内径が小さい場合でも、気密リング１の変形量を少なくすることができ、気密リング１の変形によるしわが生じ難く、しわによる気密性能の悪化を防ぐことができる。   Further, in the airtight ring 1 according to the first embodiment, the diameter R3 in a state where the polymerization bulge portion 9 is not formed is shorter than the diameter R4 in the state where the polymerization bulge portion 9 is formed. For this reason, when the pipe 22 whose inner diameter is smaller than the diameter R3 when the polymerization bulging portion 9 is not formed forms the ventilation port 20, the hermetic ring 1 is not formed with the polymerization bulging portion 9, etc. The diameter of the airtight ring 1 can be varied depending on the type of pipe that forms the ventilation port 20, and the inner diameter of the pipe 22 that forms the ventilation port 20 is smaller than that of the airtight ring having a constant diameter as in Patent Document 1. Even in this case, the amount of deformation of the hermetic ring 1 can be reduced, wrinkles due to deformation of the hermetic ring 1 are difficult to occur, and deterioration of the hermetic performance due to wrinkles can be prevented.

また、実施の形態１に係る気密リング１は、開口３の中心軸に対して平行な向きにおける第一の膨出部４の幅Ｌ３と、重合膨出部９の幅Ｌ５は略等しい。このため、換気扇１０がＶＰ管又はアルミフレキシブル管を使用して形成された換気口２０に取り付けられる場合と、ＶＵ管を使用して形成された換気口２０に取り付けられる場合とでは、気密リング１がパイプ２２の内周面を押圧する面積が略同じとなり、気密リング１は内径が異なる複数種類のパイプに対しても略同じの保持力で換気扇１０を換気口に２０に保持することが可能である。   In the airtight ring 1 according to the first embodiment, the width L3 of the first bulging portion 4 and the width L5 of the overlapping bulging portion 9 in a direction parallel to the central axis of the opening 3 are substantially equal. For this reason, in the case where the ventilation fan 10 is attached to the ventilation port 20 formed using a VP pipe or an aluminum flexible pipe, and the case where it is attached to the ventilation port 20 formed using a VU pipe, the airtight ring 1 is used. The area where the inner surface of the pipe 22 is pressed is substantially the same, and the hermetic ring 1 can hold the ventilation fan 10 at the ventilation opening 20 with substantially the same holding force even for a plurality of types of pipes having different inner diameters. It is.

更に、実施の形態１に係る気密リング１は、重合膨出部９の厚みｔ４は、第一の膨出部４の厚みｔ１と第二の膨出部５の厚みｔ２と第一の嵌合部７及び第二の嵌合部８の形状によって決まるため、薄肉部６の厚みｔ３は重合膨出部９の厚みｔ４に関係しない。このため、薄肉部６の厚みｔ３を、換気口２０を形成するパイプ２２の内径に関わらず薄くすることができ、薄肉部６を屈曲し易く作業性の良い気密リング１を形成することができる。   Further, in the airtight ring 1 according to the first embodiment, the thickness t4 of the polymerization bulge portion 9 is equal to the thickness t1 of the first bulge portion 4 and the thickness t2 of the second bulge portion 5 as the first fitting. Since the thickness is determined by the shapes of the portion 7 and the second fitting portion 8, the thickness t3 of the thin portion 6 is not related to the thickness t4 of the superposed bulge portion 9. For this reason, the thickness t3 of the thin portion 6 can be reduced regardless of the inner diameter of the pipe 22 forming the ventilation port 20, and the thin portion 6 can be easily bent and the airtight ring 1 having good workability can be formed. .

なお、実施の形態１では、換気口２０を形成するパイプ２２として、ＶＰ管、ＶＵ管及びアルミフレキシブル管を挙げたが、これに限らず、例えば鋼管等の他のパイプを使用しても構わない。   In the first embodiment, the VP pipe, the VU pipe, and the aluminum flexible pipe are exemplified as the pipe 22 that forms the ventilation port 20, but the present invention is not limited thereto, and other pipes such as a steel pipe may be used. Absent.

また、実施の形態１では、換気装置１０が装着されることが想定される換気口２０を形成するパイプ２２の内径の種類は２種類であったが、これに限らず、換気口２０を形成するパイプ２２の内径の種類は３種類以上であっても構わない。この場合において、気密リング１の第二の膨出部５が形成された部分の外径Ｒ３は最も内径の小さなパイプの内径よりも短くなり、第一の膨出部４が形成された部分の外径Ｒ２は最も内径の小さなパイプの内径よりも長く最も内径の大きなパイプの内径よりも短く、重合膨出部９が形成されている場合の気密リング１の外径Ｒ４は最も内径の大きなパイプの内径よりも長くなるように気密リング１は形成されていれば良い。   In the first embodiment, there are two types of inner diameters of the pipes 22 that form the ventilation ports 20 to which the ventilation device 10 is supposed to be mounted. However, the present invention is not limited to this, and the ventilation ports 20 are formed. There may be three or more types of inner diameters of the pipes 22 to be performed. In this case, the outer diameter R3 of the portion where the second bulging portion 5 of the hermetic ring 1 is formed is shorter than the inner diameter of the pipe having the smallest inner diameter, and the portion of the portion where the first bulging portion 4 is formed. The outer diameter R2 is longer than the inner diameter of the pipe with the smallest inner diameter and shorter than the inner diameter of the pipe with the largest inner diameter, and the outer diameter R4 of the airtight ring 1 when the overlapped portion 9 is formed is the pipe with the largest inner diameter. The hermetic ring 1 may be formed so as to be longer than the inner diameter.

また、実施の形態１の気密リング１の第一の膨出部４の厚みｔ１は第二の膨出部５の厚みｔ２と比べて厚くなるよう形成されているが、これに限らず、第二の膨出部５の厚みｔ２が第一の膨出部４の厚みｔ１と比べて厚くなるよう形成されている場合でも実施の形態１の気密リング１と同様の効果を有する。さらに、第一の膨出部４の厚みｔ１と第二の膨出部５の厚みｔ２が同じ場合であっても良い。この場合には、気密リング１の第一の膨出部４が形成された部分の外径Ｒ２と第二の膨出部５が形成された部分の外径Ｒ３は同じになり、重合膨出部９を形成しない状態で換気扇１０を換気口２０に取り付ける際に第一の膨出部４と第二の膨出部５とは外径Ｒ２及びＲ３が縮むように開口３の中心軸に対して求心方向へ圧縮されて、弾性変形する。また、薄肉部６を屈曲させることで第一の膨出部４と第二の膨出部５より重合膨出部９を形成することはでき、重合膨出部９の厚みｔ４は第一の膨出部４の厚みｔ１と第二の膨出部５の厚みｔ２よりも厚い。このため、第一の膨出部４の厚みｔ１と第二の膨出部５の厚みｔ２が同じ場合であっても内径が異なる複数種類のパイプに対して換気装置を保持することができ、膨出部が挿入方向と反対方向に倒れるように変形する気密リングに比べて、しわが生じ難く、しわによる気密性能の悪化を防ぐことができる効果を奏する。   Moreover, although the thickness t1 of the first bulging portion 4 of the airtight ring 1 of Embodiment 1 is formed to be thicker than the thickness t2 of the second bulging portion 5, this is not restrictive. Even when the thickness t2 of the second bulging portion 5 is formed to be thicker than the thickness t1 of the first bulging portion 4, the same effect as the airtight ring 1 of the first embodiment is obtained. Furthermore, the case where the thickness t1 of the 1st bulging part 4 and the thickness t2 of the 2nd bulging part 5 may be the same may be sufficient. In this case, the outer diameter R2 of the portion where the first bulging portion 4 of the airtight ring 1 is formed and the outer diameter R3 of the portion where the second bulging portion 5 is formed are the same, and the polymerization bulging When the ventilation fan 10 is attached to the ventilation opening 20 without forming the portion 9, the first bulging portion 4 and the second bulging portion 5 are in relation to the central axis of the opening 3 so that the outer diameters R2 and R3 are contracted. Compressed in the centripetal direction and elastically deformed. Also, the polymerization bulge portion 9 can be formed from the first bulge portion 4 and the second bulge portion 5 by bending the thin portion 6, and the thickness t4 of the polymerization bulge portion 9 is the first It is thicker than the thickness t1 of the bulging portion 4 and the thickness t2 of the second bulging portion 5. For this reason, even if the thickness t1 of the first bulging portion 4 and the thickness t2 of the second bulging portion 5 are the same, the ventilator can be held against a plurality of types of pipes having different inner diameters, Compared to an airtight ring that deforms so that the bulging portion falls in the direction opposite to the insertion direction, wrinkles are less likely to occur, and the effect of preventing deterioration of airtight performance due to wrinkles is achieved.

また、実施の形態１の気密リング１は第一の嵌合部７と第二の嵌合部８を備えているが、これに限らず、第一の膨出部４が形成されている箇所の外周面２ａと第二の膨出部５が形成されている箇所の外周面２ａは平らであっても良い。   Moreover, although the airtight ring 1 of Embodiment 1 is provided with the 1st fitting part 7 and the 2nd fitting part 8, it is not restricted to this, The location in which the 1st bulging part 4 is formed The outer peripheral surface 2a and the outer peripheral surface 2a where the second bulging portion 5 is formed may be flat.

実施の形態２．
図９は、実施の形態２に係る気密リングの重合膨出部を形成しない状態の断面図である。図１０は、実施の形態２に係る気密リングの図９の領域Ｅを示す拡大断面図である。図１１は、実施の形態２に係る気密リングの重合膨出部を形成する状態の断面図である。図１２は、実施の形態２に係る気密リングの図１１の領域Ｆを示す拡大断面図である。実施の形態１の気密リング１では、第一の膨出部４と第二の膨出部５の２つの膨出部が形成されていたが、実施の形態２の気密リング１では、実施の形態１の第一の膨出部４に相当する膨出部３０のみが形成されている場合について説明する。なお、図９、図１０、図１１及び図１２は、それぞれ実施の形態１の図２、図３、図４及び図５に相当する。また、それ以外の気密リング１、換気扇１０及び換気口２０の構成については実施の形態１と同様なので説明を割愛する。 Embodiment 2. FIG.
FIG. 9 is a cross-sectional view of a state in which a polymerization bulge portion of the airtight ring according to Embodiment 2 is not formed. FIG. 10 is an enlarged cross-sectional view showing a region E in FIG. 9 of the airtight ring according to the second embodiment. FIG. 11 is a cross-sectional view of a state where a polymerization bulge portion of an airtight ring according to Embodiment 2 is formed. 12 is an enlarged cross-sectional view showing a region F of FIG. 11 of the airtight ring according to the second embodiment. In the airtight ring 1 according to the first embodiment, the two bulging portions, the first bulging portion 4 and the second bulging portion 5, are formed. The case where only the bulging part 30 equivalent to the 1st bulging part 4 of the form 1 is formed is demonstrated. 9, 10, 11, and 12 correspond to FIGS. 2, 3, 4, and 5 of the first embodiment, respectively. In addition, since the configurations of the other airtight ring 1, the ventilation fan 10, and the ventilation port 20 are the same as those in the first embodiment, the description thereof is omitted.

実施の形態２の気密リング１の基部２には、基部２の全周に渡って基部２から開口３の中心軸に対して遠心方向に膨出する膨出部３０が、開口３の中心軸に対して平行な向きにおける一方の端部に形成されている。また、他方の端部には膨出部は形成されておらず、基部２のうち、膨出部３０が形成されていない他方の端部も薄肉部６に該当する。また、実施の形態２の場合でも、薄肉部６は、少なくとも、開口３の中心軸に対して並行な方向における一方の端部からの距離Ｌ１と他方の端部からの距離Ｌ２とが等距離になるような位置には設けられている。   The base 2 of the hermetic ring 1 according to the second embodiment has a bulging portion 30 that bulges in the centrifugal direction from the base 2 to the central axis of the opening 3 over the entire circumference of the base 2. Is formed at one end in a parallel direction. Further, the bulging portion is not formed at the other end portion, and the other end portion of the base portion 2 where the bulging portion 30 is not formed also corresponds to the thin portion 6. Even in the case of the second embodiment, at least the distance L1 from one end and the distance L2 from the other end in the direction parallel to the central axis of the opening 3 are equal to each other. It is provided at such a position.

また、基部２の外周面２ａのうち、膨出部３０が形成されている箇所に第一の嵌合部７が形成されており、他方の端部側の薄肉部６の一部には第二の嵌合部８が形成されている。   Moreover, the 1st fitting part 7 is formed in the location in which the bulging part 30 is formed among the outer peripheral surfaces 2a of the base 2, and a part of the thin part 6 on the other end side is the first. Two fitting portions 8 are formed.

さらに、基部２の遠心方向の断面において、内周面２ｂから第一の嵌合部７の最も遠心側に位置する点である第一の嵌合部の遠心点７ａまでの長さを膨出部３０の厚みｔ１１とし、最も遠心側に位置する点である第二の嵌合部の遠心点８ａまでの長さを薄肉部６の厚みｔ１２とすると、ｔ１１＞ｔ１２の条件を満たすように気密リング１は形成されている。なお、薄肉部６のうち第二の嵌合部８が形成されていない箇所において、内周面２ｂから外周面２ａまでの長さは薄肉部の厚みｔ１２と同じ長さである。   Furthermore, in the cross section of the base portion 2 in the centrifugal direction, the length from the inner peripheral surface 2b to the centrifugal point 7a of the first fitting portion, which is the point located on the most distal side of the first fitting portion 7, is bulged. When the thickness t11 of the portion 30 is the thickness t12 of the thin-walled portion 6 and the length of the second fitting portion, which is the point located closest to the centrifugal side, is the thickness t12 of the thin-walled portion 6, the airtight so as to satisfy the condition of t11> t12 The ring 1 is formed. In addition, in the location where the 2nd fitting part 8 is not formed among the thin parts 6, the length from the inner peripheral surface 2b to the outer peripheral surface 2a is the same length as the thickness t12 of a thin part.

また、気密リング１の膨出部３０が形成された部分の外径Ｒ１２は、所定の位置の第一の嵌合部の遠心点７ａと、当該所定の位置から開口３を挟んで反対側の位置の第一の嵌合部の遠心点７ａと間の長さが該当する。気密リング１の膨出部３０が形成された部分の外径Ｒ１２は、気密リング１が取り付けられる換気扇１０の換気口２０を形成するパイプ２２のうち最も内径の小さなパイプの内径よりも長く最も内径の大きなパイプの内径よりも短い長さに、気密リング１は形成されている。さらに、気密リング１の薄肉部６の外径Ｒ１３は、所定の位置の第二の嵌合部の遠心点８ａと、当該所定の位置から開口３を挟んで反対側の位置の第二の嵌合部の遠心点８ａと間の長さが該当する。気密リング１の薄肉部６の外径Ｒ１３は、気密リング１が取り付けられる換気扇１０の換気口２０を形成するパイプ２２のうち最も内径の小さなパイプの内径よりも短い長さに、気密リング１は形成されている。   Further, the outer diameter R12 of the portion where the bulging portion 30 of the airtight ring 1 is formed has the centrifugal point 7a of the first fitting portion at a predetermined position and the opposite side across the opening 3 from the predetermined position. This corresponds to the length between the position of the first fitting portion and the centrifugal point 7a. The outer diameter R12 of the portion where the bulging portion 30 of the airtight ring 1 is formed is longer than the inner diameter of the pipe having the smallest inner diameter among the pipes 22 forming the ventilation port 20 of the ventilation fan 10 to which the airtight ring 1 is attached. The hermetic ring 1 is formed to a length shorter than the inner diameter of the large pipe. Further, the outer diameter R13 of the thin wall portion 6 of the hermetic ring 1 is equal to the centrifugal point 8a of the second fitting portion at a predetermined position and the second fitting at a position opposite to the opening 3 from the predetermined position. This corresponds to the length between the centrifuge point 8a. The outer diameter R13 of the thin wall portion 6 of the hermetic ring 1 is shorter than the inner diameter of the pipe having the smallest inner diameter among the pipes 22 forming the ventilation port 20 of the ventilation fan 10 to which the hermetic ring 1 is attached. Is formed.

図１２のように、薄肉部６のうち第二の嵌合部８が形成されていない箇所を屈曲させることで、第一の嵌合部７と第二の嵌合部８は嵌合し、薄肉部６のうち第二の嵌合部８が形成された箇所の遠心側に膨出部３０が重なり、第二の嵌合部８が形成されている薄肉部６と膨出部３０とが重なりあい、基部２には重合膨出部３１が形成される。   As shown in FIG. 12, the first fitting portion 7 and the second fitting portion 8 are fitted by bending a portion of the thin portion 6 where the second fitting portion 8 is not formed. The bulging portion 30 overlaps the distal side of the thin-walled portion 6 where the second fitting portion 8 is formed, and the thin-walled portion 6 and the bulging portion 30 where the second fitting portion 8 is formed. Overlapping, a polymerization bulge portion 31 is formed in the base portion 2.

また、重合膨出部３１が形成される位置において遠心側の面から求心側の面までの長さを重合膨出部３１の厚みｔ１４とすると、重合膨出部３１は薄肉部６と膨出部３０が重なり合って形成されているため、重合膨出部３１の厚みｔ１４は、ｔ１４＞ｔ１１＞ｔ１２の条件を満たすように気密リング１は形成されている。なお、重合膨出部３１の厚みｔ１４は、第一の膨出部４の厚みｔ１１と、薄肉部６の厚みｔ１２と、第一の嵌合部７及び第二の嵌合部８の形状によって決まる。   Further, when the length from the centrifugal side surface to the centripetal side surface is the thickness t14 of the polymerization bulge portion 31 at the position where the polymerization bulge portion 31 is formed, the polymerization bulge portion 31 is swelled with the thin portion 6. Since the portions 30 are formed so as to overlap with each other, the airtight ring 1 is formed so that the thickness t14 of the polymerization bulge portion 31 satisfies the condition of t14> t11> t12. The thickness t14 of the superposed bulge portion 31 depends on the thickness t11 of the first bulge portion 4, the thickness t12 of the thin portion 6, and the shapes of the first fitting portion 7 and the second fitting portion 8. Determined.

また、薄肉部６が屈曲され重合膨出部３１が形成されている場合の気密リング１の外径Ｒ１４は、所定の位置の遠心側の面と、当該所定の位置から開口３を挟んで反対側の遠心側の面と、の間の長さが該当する。重合膨出部３１が形成されている場合の気密リング１の外径Ｒ１４は、気密リング１が取り付けられる換気扇１０の換気口２０を形成するパイプ２２のうち最も内径の大きなパイプの内径よりも長い長さに、気密リング１は形成されている。   Further, the outer diameter R14 of the airtight ring 1 when the thin wall portion 6 is bent and the polymerization bulge portion 31 is formed is opposite to the centrifugal side surface at a predetermined position and the opening 3 from the predetermined position. This corresponds to the length between the centrifugal side surface on the side. The outer diameter R14 of the hermetic ring 1 in the case where the polymerization bulge portion 31 is formed is longer than the inner diameter of the pipe having the largest inner diameter among the pipes 22 forming the ventilation port 20 of the ventilation fan 10 to which the hermetic ring 1 is attached. An airtight ring 1 is formed in length.

実施の形態２の気密リング１のように膨出部が１つしか形成されていない場合であっても、薄肉部６が屈曲されることで、膨出部３０よりも厚みが長い重合膨出部３１を形成することができる。このため、実施の形態１と同様に内径が異なる複数種類のパイプに対して換気装置を保持することができる。膨出部が挿入方向と反対方向に倒れるように変形する気密リングに比べて、しわが生じ難く、しわによる気密性能の悪化を防ぐことができる効果を奏する。   Even when only one bulging part is formed as in the airtight ring 1 of the second embodiment, the thinned part 6 is bent so that the polymerization bulging is longer than the bulging part 30. The part 31 can be formed. For this reason, the ventilator can be held with respect to a plurality of types of pipes having different inner diameters as in the first embodiment. Compared to an airtight ring that deforms so that the bulging portion falls in the direction opposite to the insertion direction, wrinkles are less likely to occur, and the effect of preventing deterioration of airtight performance due to wrinkles is achieved.

実施の形態３．
図１３は、実施の形態３に係る屋外フードに気密リングを重合膨出部を形成せずに取り付けた状態を示す断面図である。実施の形態３では、換気装置に屋外フード４０を用いた場合を示す。なお、気密リング１及び換気口２０の構成については実施の形態１と同様なので説明を割愛する。 Embodiment 3 FIG.
FIG. 13 is a cross-sectional view illustrating a state in which an airtight ring is attached to the outdoor hood according to Embodiment 3 without forming a polymerization bulge portion. In Embodiment 3, the case where the outdoor hood 40 is used for a ventilator is shown. In addition, since the structure of the airtight ring 1 and the ventilation port 20 is the same as that of Embodiment 1, description is omitted.

屋外フード４０は、フード本体４１と、フード本体４１から突出する略円筒形状の部材であり内部に空間が形成され両底面が開口している筒部４２とから構成されている。また、筒部４２の外径は気密リング１の開口３の直径Ｒ１と略等しく、筒部の外周面と気密リング１の基部２の内周面２ｂが接するように、筒部４２に気密リング１は取り付けられている。なお、筒部４１の中心にフード本体４１側を前方側、フード本体４１とは逆側を後方側とする。また、フード本体４１のうち筒部４２の中心軸に対して垂直な部分には固定孔（図示省略）が設けられている。   The outdoor hood 40 is composed of a hood main body 41 and a cylindrical portion 42 which is a substantially cylindrical member projecting from the hood main body 41 and has a space formed therein and open at both bottoms. Further, the outer diameter of the cylindrical portion 42 is substantially equal to the diameter R1 of the opening 3 of the hermetic ring 1, and the cylindrical portion 42 is in contact with the inner peripheral surface 2b of the base 2 of the hermetic ring 1 so that the outer peripheral surface of the cylindrical portion 1 is in contact. 1 is attached. In addition, let the hood main body 41 side be a front side in the center of the cylinder part 41, and let the opposite side to the hood main body 41 be a back side. Further, a fixing hole (not shown) is provided in a portion of the hood main body 41 that is perpendicular to the central axis of the cylindrical portion 42.

換気口２０のパイプ２２にＶＰ管又はアルミフレキシブル管のような内径の小さなパイプが使用されている場合に屋外フード４０を換気口２０に装着する場合は、気密リング１を薄肉部６が屈曲されず重合膨出部９を形成しない状態にし、筒部４２の後方側の部分を室外空間２４側から換気口２０に挿入され、室内空間２３に向けてフード本体４１が壁面２１に当接する状態まで押し込まれる。フード本体４１が壁面２１に当接すると固定孔を介して壁面２１に設けられたねじ孔にねじを螺合させることによって屋外フード４０は換気扇に装着される。   When a pipe having a small inner diameter such as a VP pipe or an aluminum flexible pipe is used for the pipe 22 of the ventilation port 20, when the outdoor hood 40 is attached to the ventilation port 20, the thin portion 6 of the hermetic ring 1 is bent. The polymerization bulge portion 9 is not formed, and the rear portion of the cylindrical portion 42 is inserted into the ventilation port 20 from the outdoor space 24 side until the hood body 41 contacts the wall surface 21 toward the indoor space 23. Pushed in. When the hood main body 41 comes into contact with the wall surface 21, the outdoor hood 40 is mounted on the ventilation fan by screwing screws into screw holes provided in the wall surface 21 through the fixing holes.

この場合の屋外フード４０の筒部４２に取り付けられた気密リング１は、実施の形態１の換気扇１０を換気口２０に装着する場合と同じく、第一の膨出部４は外径Ｒ２が縮むように開口３の中心軸に対して求心方向へ圧縮されて、弾性変形する。このため、実施の形態１の換気扇１０を換気口２０に装着する場合と同じく気密リング１はシールの役割を果たし、換気扇１０の気密性能及び水密性能を向上させる効果を奏している。   In this case, the airtight ring 1 attached to the cylindrical portion 42 of the outdoor hood 40 is similar to the case where the ventilation fan 10 of the first embodiment is attached to the ventilation opening 20, and the first bulging portion 4 has a reduced outer diameter R2. Thus, it is compressed in the centripetal direction with respect to the central axis of the opening 3 and elastically deforms. For this reason, the airtight ring 1 plays the role of a seal similarly to the case where the ventilation fan 10 of Embodiment 1 is attached to the ventilation opening 20, and has the effect of improving the airtight performance and watertight performance of the ventilation fan 10.

換気口２０のパイプ２２にＶＵ管のような内径の大きなパイプが使用されている場合に屋外フード４０を換気口２０に装着する場合についても、気密リング１は、薄肉部６が屈曲され、重合膨出部９が形成する状態にされる以外は、内径の小さなパイプが使用されている場合と同様である。   When a pipe having a large inner diameter such as a VU pipe is used as the pipe 22 of the ventilation port 20, when the outdoor hood 40 is attached to the ventilation port 20, the thin ring portion 6 is bent and the airtight ring 1 is overlapped. Except for the state in which the bulging portion 9 is formed, it is the same as the case where a pipe having a small inner diameter is used.

この場合の屋外フード４０の筒部４２に取り付けられた気密リング１は、実施の形態１の換気扇１０を換気口２０に装着する場合と同じく、重合膨出部９は外径Ｒ４が縮むように開口３の中心軸に対して求心方向へ圧縮されて、弾性変形する。このため、実施の形態１の換気扇１０を換気口２０に装着する場合と同じく気密リング１はシールの役割を果たし、換気扇１０の気密性能及び水密性能を向上させる効果を奏している。   In this case, the airtight ring 1 attached to the cylindrical portion 42 of the outdoor hood 40 is opened so that the outer diameter R4 contracts, as in the case where the ventilation fan 10 of the first embodiment is attached to the ventilation opening 20. 3 is compressed in the centripetal direction with respect to the central axis 3 and elastically deforms. For this reason, the airtight ring 1 plays the role of a seal similarly to the case where the ventilation fan 10 of Embodiment 1 is attached to the ventilation opening 20, and has the effect of improving the airtight performance and watertight performance of the ventilation fan 10.

実施の形態３のように、本発明の気密リング１は換気扇１０以外に限らず、筒部を有し、筒部を換気口２０のパイプに挿入して装着する換気装置であれば、実施の形態１と同様に、内径が異なる複数種類のパイプに対して換気装置を保持する効果を奏する。また、気密リング１は、同様に膨出部が挿入方向と反対方向に倒れるように変形する気密リングに比べて、しわが生じ難く、しわによる気密性能の悪化を防ぐことができる効果も奏する。   As in the third embodiment, the airtight ring 1 of the present invention is not limited to the ventilation fan 10, and has a cylinder portion, and is a ventilation device that is installed by inserting the cylinder portion into the pipe of the ventilation port 20. Similar to Embodiment 1, the effect of holding the ventilator is provided for a plurality of types of pipes having different inner diameters. In addition, the airtight ring 1 is less likely to cause wrinkles than the airtight ring in which the bulging portion is deformed so as to fall in the direction opposite to the insertion direction, and also has an effect of preventing deterioration of the airtight performance due to wrinkles.

筒部を有し、筒部を換気口２０のパイプに挿入して装着する換気装置は、換気扇１０や屋外フード４０の他に、換気扇１０からモーター１３とファン１４を除き換気口２０を介して室内空間２３と室外空間２４を連通させる給気口や、筒部の中心軸に対して並行に設けられた仕切り板で筒部の内部空間を２つに仕切り、片方の内部空間で室内空間２３の空気を室外空間２４に排気し、もう片方の空間で室外空間２４の空気を室内空間２３に給気する給排気同時換気扇や、給排気同時換気扇の内部に熱交換器を搭載し排気する室内空気と給気する室内空気との間で熱交換を行う熱交換換気扇が挙げられる。   The ventilator which has a cylinder part and inserts and installs a cylinder part in the pipe of the ventilation opening 20 removes the motor 13 and the fan 14 from the ventilation fan 10 in addition to the ventilation fan 10 and the outdoor hood 40, and is provided via the ventilation opening 20. The interior space of the cylinder portion is divided into two by an air supply port for communicating the indoor space 23 and the outdoor space 24 and a partition plate provided in parallel to the central axis of the cylinder portion, and the interior space 23 is divided into one interior space. The indoor air is exhausted by installing a heat exchanger in the supply / exhaust simultaneous ventilation fan that exhausts the air in the outdoor space 24 and supplies the air in the outdoor space 24 to the indoor space 23 in the other space. A heat exchanging ventilator that performs heat exchange between air and indoor air to be supplied is mentioned.

１ 気密リング、２ 基部、２ａ 外周面、２ｂ 内周面、３ 開口、４ 第一の膨出部、５ 第二の膨出部、６ 薄肉部、７ 第一の嵌合部、７ａ 第一の嵌合部の遠心点、８ 第二の嵌合部、８ａ 第二の嵌合部の遠心点、９ 重合膨出部、１０ 換気扇、１１ 換気扇フレーム、１１ａ 筒部、１１ｂ フランジ部、１２ ルーバー、１３ モーター、１３ａ モーター本体、１３ｂ モーターシャフト、１５ ファン、２０ 換気口、２１ 壁面、２２ パイプ、２３ 室内空間、２４ 室外空間、３０ 膨出部、３１ 重合膨出部、４０ 屋外フード、４１ フード本体、４２ 筒部 DESCRIPTION OF SYMBOLS 1 Airtight ring, 2 base part, 2a outer peripheral surface, 2b inner peripheral surface, 3 opening, 4 1st bulging part, 5 2nd bulging part, 6 thin part, 7 1st fitting part, 7a 1st Centrifugal point of 8 fitting part, 8 2nd fitting part, 8a Centrifugal point of 2nd fitting part, 9 superposition part, 10 ventilation fan, 11 ventilation fan frame, 11a cylinder part, 11b flange part, 12 louvers , 13 Motor, 13a Motor body, 13b Motor shaft, 15 Fan, 20 Ventilation port, 21 Wall surface, 22 Pipe, 23 Indoor space, 24 Outdoor space, 30 Swelling part, 31 Superposition part, 40 Outdoor hood, 41 Hood Main body, 42 tube

Claims (7)

換気装置の筒部が挿入される円形の開口が形成された弾性材料から成るリング状の基部と、
前記開口の中心軸に並行な方向における前記基部の一方の端部側に前記基部の全周に渡って設けられ、前記中心軸に対して遠心方向に膨出する膨出部と、
前記基部において前記中心軸に並行な方向における前記基部の前記一方の端部からの距離と他方の端部の距離が等しくなるような位置に設けられ、前記遠心方向における厚みが、前記遠心方向における厚みよりも薄い薄肉部と、を備えたことを特徴とする気密リング。 A ring-shaped base made of an elastic material in which a circular opening into which a cylindrical portion of the ventilation device is inserted is formed;
A bulging portion provided over the entire circumference of the base portion on one end side of the base portion in a direction parallel to the central axis of the opening, and bulging in a centrifugal direction with respect to the central axis;
The base is provided at a position where the distance from the one end of the base in the direction parallel to the central axis is equal to the distance from the other end, and the thickness in the centrifugal direction is the same in the centrifugal direction. An airtight ring characterized by comprising a thin-walled portion thinner than the thickness. 前記薄肉部が屈曲されて、前記基部の前記膨出部が設けられた外周面と、前記基部の前記他方の端部の外周面と、が当接することで、前記遠心方向における厚みが前記膨出部の前記厚みよりも厚い重合膨出部を前記基部の全周に渡って形成することを特徴とする請求項１に記載の気密リング。 The thin wall portion is bent, and the outer peripheral surface of the base portion where the bulging portion is provided contacts the outer peripheral surface of the other end portion of the base portion, so that the thickness in the centrifugal direction is increased. The hermetic ring according to claim 1, wherein a polymerized bulging portion that is thicker than the thickness of the protruding portion is formed over the entire circumference of the base portion. 前記基部の前記膨出部が設けられた外周面には第一の嵌合部が形成され、
前記膨出部が設けられた外周面と当接する前記基部の前記他方の端部側の外周面には、前記第一の嵌合部と嵌合する形状の第二の嵌合部が形成されることを特徴とする請求項１又は２に記載の気密リング。 A first fitting portion is formed on the outer peripheral surface of the base portion where the bulging portion is provided,
A second fitting portion having a shape to be fitted to the first fitting portion is formed on the outer circumferential surface on the other end side of the base portion that comes into contact with the outer circumferential surface provided with the bulging portion. The airtight ring according to claim 1 or 2, wherein the airtight ring is provided. 前記基部の前記他方の端部に設けられ、前記中心軸に対して放射方向に膨出し、前記遠心方向における厚みが、前記薄肉部の厚みよりも厚い第二の膨出部を備えたことを特徴とする請求項１から３のいずれか一つに記載の気密リング。 A second bulging portion provided at the other end portion of the base portion, bulging in a radial direction with respect to the central axis, and having a thickness in the centrifugal direction larger than a thickness of the thin portion; The hermetic ring according to any one of claims 1 to 3, characterized in that 前記第二の膨出部の前記厚みは、前記膨出部の前記厚みよりも薄いことを特徴とする請求項４に記載の気密リング。 The airtight ring according to claim 4, wherein the thickness of the second bulging portion is smaller than the thickness of the bulging portion. 換気口を形成するパイプに挿入される筒部と、
前記筒部が挿入される円形の開口が形成された弾性材料から成るリング状の基部と、前記開口の中心軸に並行な方向における前記基部の一方の端部側に前記基部の全周に渡って設けられ、前記中心軸に対して遠心方向に膨出する膨出部と、前記基部において前記中心軸に並行な方向における前記基部の前記一方の端部からの距離と他方の端部の距離が等しくなるような位置に設けられ、前記遠心方向における厚みが、前記膨出部の前記遠心方向における厚みよりも薄い薄肉部と、を有する気密リングと、
を備えたことを特徴とする換気装置。 A cylinder part inserted into a pipe forming a ventilation opening;
A ring-shaped base portion made of an elastic material in which a circular opening into which the cylindrical portion is inserted is formed, and one end portion side of the base portion in a direction parallel to the central axis of the opening over the entire circumference of the base portion. And a bulging portion that bulges in the centrifugal direction with respect to the central axis, and a distance from the one end of the base in the direction parallel to the central axis and a distance between the other end in the base Are provided at positions such that the thickness in the centrifugal direction is thinner than the thickness of the bulging portion in the centrifugal direction, and an airtight ring,
Ventilator characterized by comprising. 前記気密リングは、前記薄肉部が屈曲されて、前記基部の前記膨出部が設けられた外周面と、前記基部の前記他方の端部の外周面と、が当接することで、前記遠心方向における厚みが前記膨出部の前記厚みよりも厚い重合膨出部を前記基部の全周に渡って形成し、
前記気密リングに、前記重合膨出部を形成すると、前記薄肉部は前記重合膨出部よりも前記筒部がパイプに挿入される際の挿入方向の先端側に位置することを特徴とする請求項６に記載の換気装置。 In the airtight ring, the thin wall portion is bent, and the outer peripheral surface of the base portion provided with the bulging portion and the outer peripheral surface of the other end portion of the base portion abut on each other in the centrifugal direction. Forming a polymerized bulging portion having a thickness greater than the thickness of the bulging portion over the entire circumference of the base portion,
When the polymerization bulge portion is formed in the hermetic ring, the thin-walled portion is positioned closer to the distal end side in the insertion direction when the cylindrical portion is inserted into the pipe than the polymerization bulge portion. Item 7. The ventilation device according to item 6.
JP2014213359A 2014-10-20 2014-10-20 Airtight ring and ventilator Pending JP2016080282A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102585836B1 (en) * 2023-07-05 2023-10-13 주식회사 풍성인더스 Solar power generation system integrated with the building equipped with condensation prevention function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102585836B1 (en) * 2023-07-05 2023-10-13 주식회사 풍성인더스 Solar power generation system integrated with the building equipped with condensation prevention function

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