JP4335640B2 - Ceiling exhaust fan - Google Patents

Ceiling exhaust fan Download PDF

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JP4335640B2
JP4335640B2 JP2003370588A JP2003370588A JP4335640B2 JP 4335640 B2 JP4335640 B2 JP 4335640B2 JP 2003370588 A JP2003370588 A JP 2003370588A JP 2003370588 A JP2003370588 A JP 2003370588A JP 4335640 B2 JP4335640 B2 JP 4335640B2
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fan
decorative cover
ceiling
mounting
attachment
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JP2005134033A (en
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義政 伊藤
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Toshiba Carrier Corp
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Description

本発明は、部屋の天井裏に配設され、部屋の空気を吸引して外部へ排気する天井用換気扇に関する。   The present invention relates to a ceiling ventilator that is disposed behind a ceiling of a room and sucks out air in the room and exhausts the air to the outside.

部屋の天井裏に配設され、部屋の空気を吸込んでダクトを介し外部へ排気する天井用換気扇が多用されている。この天井用換気扇は、部屋に臨んで開口部を有し、内部にファンとファン駆動用モータとからなる送風機を収容し、かつダクトが接続される換気扇本体と、この換気扇本体の開口部を閉成し、部屋内に露出する吸込みグリルを備えた化粧カバーとから構成される。   Ceiling ventilation fans are often used that are arranged behind the ceiling of the room and draw in the air of the room and exhaust it to the outside through a duct. This ceiling ventilation fan has an opening facing the room, houses a blower composed of a fan and a motor for driving the fan, and has a ventilation fan body to which a duct is connected, and the opening of the ventilation fan body is closed. And a decorative cover having a suction grille exposed in the room.

ほとんど密閉された状態であるとともに、人が居住する部屋の空気が汚れることは避けられない。ある程度の期間が経過すると、天井用換気扇を通過する汚れた空気の影響で化粧カバーに埃や煙草の煙に含まれるヤニなどが付着し美観が損なわれる。したがって、適宜期間が経過したら化粧カバーを取外し、化粧カバーに付着する汚れを除去する作業、いわゆるメンテナンスが必要である。   It is inevitable that the air in the room where the person lives is contaminated while being almost sealed. When a certain period of time elapses, dust or dust contained in the smoke of cigarettes adheres to the decorative cover under the influence of dirty air passing through the ceiling ventilation fan, and the aesthetics are impaired. Therefore, it is necessary to perform a so-called maintenance operation of removing the decorative cover and removing the dirt adhering to the decorative cover after an appropriate period of time has elapsed.

上記化粧カバーは天井板に位置するので、メンテナンスの際は脚立や踏み台等を利用しなければならず立場が不安定であるうえに、天井板を見上げる無理な姿勢を強いられて作業的に不利である。そこで、［特許文献１］には、化粧カバーの脱着作業を容易化した天井用換気扇が記載されている。
この［特許文献１］の技術を概略説明すると、換気扇本体側に支持部を備えたケーシングブリッジが設けられていて、上記支持部にはねじりコイルばねの腕部が受け支持され、ねじりコイルばねの環状部には化粧カバーに設けられる金具が挿入される。化粧カバーは両腕部の拡がり力によって引き上げられ、換気扇本体の開口部を覆う。
特開平７−２３９１４３号公報 Since the above-mentioned decorative cover is located on the ceiling board, it is necessary to use a stepladder, step ladder, etc. for maintenance, and the position is unstable, and it is forced to take an unreasonable posture looking up at the ceiling board. It is. [Patent Document 1] describes a ceiling ventilation fan that facilitates the attaching and detaching operation of the decorative cover.
Briefly explaining the technique of [Patent Document 1], a casing bridge having a support portion is provided on the side of the ventilation fan main body, and an arm portion of a torsion coil spring is received and supported by the support portion. A metal fitting provided on the decorative cover is inserted into the annular portion. The decorative cover is pulled up by the spreading force of both arms, and covers the opening of the ventilation fan body.
JP 7-239143 A

ところで、天井板自体は比較的薄い板体である反面、換気扇本体は送風機を収容しているところからある程度の重量があるので、換気扇本体を取付ける天井板部位は頑丈な補強構造を採用しなければならない。この補強構造について一定した形はなく、必要に応じて適宜異なる。
そのため、採用される補強構造によって天井板と［特許文献１］の換気扇本体に設けられる支持部との距離が変り、支持部に取付けられるねじりコイルばねの環状部位置と天井板との距離が一定しない。ある程度の量の位置ずれは、ねじりコイルばねにおける腕部のストロークで吸収できるが、所定量を超えた位置ずれではコイルばねに対する受け支持が不可能になってしまう。 By the way, the ceiling plate itself is a relatively thin plate, but the ventilation fan body has a certain amount of weight from the place where the blower is housed, so the ceiling plate part to which the ventilation fan body is attached must adopt a sturdy reinforcement structure. Don't be. There is no fixed shape for this reinforcing structure, and it will vary as needed.
Therefore, the distance between the ceiling plate and the support portion provided in the ventilation fan main body of [Patent Document 1] varies depending on the reinforcement structure adopted, and the distance between the annular portion position of the torsion coil spring attached to the support portion and the ceiling plate is constant. do not do. A certain amount of misalignment can be absorbed by the stroke of the arm portion of the torsion coil spring. However, if the misalignment exceeds a predetermined amount, the receiving support for the coil spring becomes impossible.

たとえ、ねじりコイルばねを強引に引き出して無理な状態で化粧カバーを取付けたとしても、化粧カバーと支持部との取付け間隔が大きくなると、金具が挿入されるねじりコイルばねの環状部と支持部との間隔が伸びる。そのため、ねじりコイルばねの左右の腕部による上方への引張り力も大になって、環状部を介して金具に大きな荷重がかかり、化粧カバーに対して金具が破損し易くなる。   Even if the torsion coil spring is forcibly pulled out and the decorative cover is attached in an unreasonable state, if the attachment interval between the decorative cover and the support portion increases, the annular portion and the support portion of the torsion coil spring into which the metal fitting is inserted The interval of increases. Therefore, the upward pulling force by the left and right arm portions of the torsion coil spring is also increased, and a large load is applied to the metal fitting through the annular portion, and the metal fitting is easily damaged with respect to the decorative cover.

本発明は上記課題に着目してなされたもので、その目的とするところは、換気扇本体の支持部材に化粧カバーの掛止部材を係脱自在とすることを前提として、天井板に対する補強構造に影響されることなく化粧カバーを確実に支持部材に脱着でき作業性の向上と、構成部品の破損を防止して信頼性の向上を得られる天井用換気扇を提供しようとするものである。   The present invention has been made paying attention to the above-mentioned problems, and the object of the present invention is to provide a reinforcing structure for the ceiling plate on the premise that the retaining member of the decorative cover can be freely engaged with and disengaged from the supporting member of the ventilation fan body. It is an object of the present invention to provide a ceiling ventilator that can improve the workability by ensuring that the decorative cover can be detachably attached to the support member without being affected, and that can improve the reliability by preventing damage to the components.

本発明の天井用換気扇は上述の目的を満足するためなされたものであり、換気扇本体は部屋の天井板に設けられる取付け用開口部に取付けられて天井裏に配設され部屋に臨ませられる開口部を有するとともに内部にファンケーシングおよび、このファンケーシング内に備えられるファンとファン駆動用モータからなる送風機を収容し、支持部材は換気扇本体を構成するファンケーシングの下面部で、かつ左右側部に対向する位置に一対備えられる取付け部および、それぞれの取付け部に一体に連設され取付けねじを介してファンケーシングに取付け固定されるボス部とを有し、化粧カバーは係合部を有し、弾性掛止部材は化粧カバーの係合部が挿脱自在に挿入される環状部および環状部と一体に設けられ互いの弾性拡がり力により支持部材の取付け部に弾性的に保持される２本の腕部を備え換気扇本体の開口部に化粧カバーを部屋側から脱着自在に取付け保持し、支持部材における取付け部は所定の高さの段差を存して複数段形成され、それぞれの取付け部は下面一部が上方に略山形状に凹陥形成され、この凹陥部の左右屈曲部である傾斜部分と下面部とに亘って弾性掛止部材を掛止するための細長い溝状の切欠部が設けられ、上記弾性掛止部材は、必要な高さ位置の取付け部を選択して取付けられる。 The ceiling fan of the present invention is made to satisfy the above-mentioned object, and the ventilator fan body is attached to an opening for installation provided on the ceiling plate of the room and is disposed on the back of the ceiling so as to face the room. And a fan casing and a fan including a fan and a motor for driving the fan provided in the fan casing are accommodated therein, and the support member is a lower surface portion of the fan casing constituting the ventilation fan main body and on the left and right side portions. A pair of mounting portions provided at opposing positions, and a boss portion integrally connected to each mounting portion and fixed to the fan casing via mounting screws , and the decorative cover has an engaging portion, The elastic hooking member is provided integrally with the annular portion and the annular portion in which the engaging portion of the decorative cover is detachably inserted, and the elastic member is supported by the mutual elastic spreading force. With portions elastically decorative cover to the opening of two ventilating fan body includes arm portions that are held detachably mounting holding the room side, the mounting portion of the support member resides a step of a predetermined height A plurality of steps are formed, and a part of the lower surface of each mounting portion is recessed upward in a substantially mountain shape, and the elastic hooking member is hooked over the inclined portion and the lower surface portion which are the left and right bent portions of the recessed portion. An elongated groove-shaped notch is provided, and the elastic latch member is attached by selecting an attachment portion at a required height position.

本発明によれば、天井板に対する補強構造に影響されることなく、化粧カバーを確実に支持部材に脱着でき作業性の向上と、構成部品の破損を防止して信頼性の向上を得られるなどの効果を奏する。   According to the present invention, the decorative cover can be securely attached to and detached from the support member without being affected by the reinforcing structure with respect to the ceiling panel, and the workability can be improved, and the reliability of the components can be improved by preventing damage to the components. The effect of.

［実施例］
以下、本発明の天井用換気扇の実施例について図面を参照して説明する。
図１（Ａ）は換気扇本体１に対する化粧カバー２の取付け構造を説明する図、図１（Ｂ）は化粧カバー２の取付け直前状態を示す斜視図、図２は換気扇本体１の斜視図、図３は支持部材３の斜視図、図４は弾性掛止部材４の正面図、図５は弾性掛止部材４と係合部５の一部斜視図である。 [Example]
Hereinafter, embodiments of a ceiling fan according to the present invention will be described with reference to the drawings.
FIG. 1A is a diagram for explaining a structure for attaching the decorative cover 2 to the ventilation fan body 1, FIG. 1B is a perspective view showing a state immediately before the attachment of the decorative cover 2, and FIG. 2 is a perspective view of the ventilation fan body 1. 3 is a perspective view of the support member 3, FIG. 4 is a front view of the elastic latching member 4, and FIG. 5 is a partial perspective view of the elastic latching member 4 and the engaging portion 5.

部屋Ｒの天井板１０には、ここでは図示しない取付け用開口部（図６（Ａ），図７（Ｂ）に示す、１０ａ）が設けられていて、この開口部に沿って図示しない補強構造体（図６（Ａ），図７（Ｂ）に示す、３０）が備えられ、かつ換気扇本体１が取付けられている。この換気扇本体１は、金属板からなる外筐である本体ケース１１が天井裏に突出し、適宜な手段で天井裏の構成部材に取付け固定される。本体ケース１１の下面全体は開口していて、この開口部１２は部屋Ｒに臨ませられる。   The ceiling plate 10 of the room R is provided with a mounting opening (not shown) (10a shown in FIGS. 6A and 7B), and a reinforcing structure not shown along the opening. The body (30 shown to FIG. 6 (A) and FIG. 7 (B)) is provided, and the ventilation fan main body 1 is attached. In the ventilation fan body 1, a body case 11 which is an outer casing made of a metal plate protrudes from the back of the ceiling, and is attached and fixed to a constituent member of the back of the ceiling by an appropriate means. The entire lower surface of the main body case 11 is open, and the opening 12 is exposed to the room R.

本体ケース１１の開口部１２周縁に沿って鍔部１３が一体に設けられていて、この鍔部１３がここでは天井板１０の部屋Ｒ側に露出している。鍔部１３は、取付けねじ等の取付け具を用いて天井板１０を介し上述した補強構造体に取付け固定される。換気扇本体１内には送風機１５および後述する一対の支持部材３が収容されていて、それぞれ適宜な手段で本体ケース１１に取付け固定され、上記開口部１２に対向している。   A flange 13 is integrally provided along the periphery of the opening 12 of the main body case 11, and the flange 13 is exposed to the room R side of the ceiling board 10 here. The flange 13 is attached and fixed to the above-described reinforcing structure via the ceiling board 10 using an attachment such as an attachment screw. A blower 15 and a pair of support members 3 to be described later are accommodated in the ventilation fan main body 1, and are fixedly attached to the main body case 11 by appropriate means, and face the opening 12.

上記送風機１５は、ファンケーシング１６内に備えられ、軸方向から吸込んで周方向に吹出す多翼型のファン１７と、このファン１７が回転軸に嵌着される、ここでは図示しないファン駆動用モータ（図６（Ａ），図７（Ｂ）に示す、１８）とから構成される。上記ファンケーシング１６は、上部側が開口され、この開口部周縁に沿って設けられる鍔部が本体ケース１１の上面部に取付け固定される。ファンケーシング１６周面はファン１７周面と所定間隔を存していて、ファン１７周面を覆う。 The blower 15 is provided in a fan casing 16, and a multi-blade fan 17 that sucks in from the axial direction and blows out in the circumferential direction, and the fan 17 is fitted to the rotating shaft. And a motor (18 shown in FIGS. 6A and 7B). The fan casing 16 is opened at the upper side, and a flange provided along the periphery of the opening is attached and fixed to the upper surface of the main body case 11. The peripheral surface of the fan casing 16 is spaced apart from the peripheral surface of the fan 17 and covers the peripheral surface of the fan 17.

また、ファンケーシング１６の下面はファン１７内径と略同一径の開口部１６ａが形成されていて、ファンケーシング１６の外形直径と下面開口部１６ａの直径とは所定の寸法差がある。このようにして、ファン１７の吸込み方向に対向してファンケーシング１６は下面開口部１６ａを備えており、このファンケーシング下面開口部１６ａは換気扇本体１の開口部１２と対向する、いわゆるベルマウスとなる。ファン１７の吹出し方向であるファンケーシング１６の側面部一部は開口され、本体ケース１１の一側部に設けられる吹出し口１９と連通する。この吹出し口１９と対向する本体ケース１１の外面側に排気ダクト２０が取付けられる。 Further, the lower surface of the fan casing 16 is formed with an opening 16a having substantially the same diameter as the inner diameter of the fan 17, and there is a predetermined dimensional difference between the outer diameter of the fan casing 16 and the diameter of the lower surface opening 16a. In this way, the fan casing 16 is provided with the lower surface opening 16a so as to face the suction direction of the fan 17, and the fan casing lower surface opening 16a is a so-called bell mouth facing the opening 12 of the ventilation fan body 1. Become. A part of the side surface portion of the fan casing 16, which is the blowing direction of the fan 17, is opened and communicates with a blowing port 19 provided on one side portion of the main body case 11. An exhaust duct 20 is attached to the outer surface side of the main body case 11 facing the air outlet 19.

上記支持部材３は、その一部が送風機１５を構成するファンケーシング１６の下面部に取付けられ、大部分はファンケーシング１６と本体ケース１１の側面壁との間に位置する。そして、支持部材３は左右に対向する位置に一対備えられる。
特に図３に拡大して示すように、上記支持部材３は合成樹脂材からなる射出成形品である。支持部材３は、幅方向寸法に対して長手方向寸法が極めて大に形成される取付け部２２と、この取付け部２２の一側部に一体に連設されるボス部２３とを備えている。 A part of the support member 3 is attached to the lower surface of the fan casing 16 constituting the blower 15, and most of the support member 3 is located between the fan casing 16 and the side wall of the main body case 11. A pair of support members 3 are provided at positions facing left and right.
In particular, as shown in FIG. 3 in an enlarged manner, the support member 3 is an injection molded product made of a synthetic resin material. The support member 3 includes a mounting portion 22 having a lengthwise dimension that is extremely large with respect to the widthwise dimension, and a boss portion 23 that is integrally connected to one side of the mounting portion 22.

はじめにボス部２３から説明すると、補強用板体２４が取付け部２２側面に一体に連設され、この補強用板体２４の先端に一対のねじ座２５が所定間隔を存して直列に形成される。これらねじ座２５に取付けねじが挿通され、取付けねじの先端ねじ部は上記ファンケーシング１６の下面部に螺挿される。すなわち、取付けねじを介して支持部材３はファンケーシング１６に取付け固定される。   First, from the boss portion 23, the reinforcing plate 24 is integrally connected to the side surface of the mounting portion 22, and a pair of screw seats 25 are formed in series at the tip of the reinforcing plate 24 with a predetermined interval. The A mounting screw is inserted through these screw seats 25, and a tip screw portion of the mounting screw is screwed into the lower surface portion of the fan casing 16. That is, the support member 3 is attached and fixed to the fan casing 16 via the attachment screw.

上記取付け部２２は、図示する表面側および下面側は所定の板厚を備え、図示しない裏面と上部は開放形成されていて、言わば空洞状をなす。そして取付け部２２は、ボス部側である第１の取付け部２２Ａと、この第１の取付け部２２Ａの側面に一体に連設される第２の取付け部２２Ｂとから構成される。
取付け部２２の上端縁から第１の取付け部２２Ａの下面までの距離Ｌａは、取付け部２２の上端縁から第２の取付け部２２Ｂの下面までの距離Ｌｂよりも小に形成されている。したがって、第１の取付け部２２Ａ下面と第２の取付け部２２Ｂ下面とは所定の段差Ｓが存在する。取付け部２２の下端縁を基準にしてみると、第１の取付け部２２Ａ下面は高い位置にあり、第２の取付け部２２Ｂ下面は低い位置にある。 The mounting portion 22 has a predetermined plate thickness on the front surface side and the lower surface side shown in the figure, and a back surface and an upper part (not shown) are formed open, so to speak, a hollow shape. And the attachment part 22 is comprised from the 1st attachment part 22A which is a boss | hub part side, and the 2nd attachment part 22B integrally connected by the side surface of this 1st attachment part 22A.
A distance La from the upper end edge of the attachment portion 22 to the lower surface of the first attachment portion 22A is formed to be smaller than a distance Lb from the upper end edge of the attachment portion 22 to the lower surface of the second attachment portion 22B. Accordingly, there is a predetermined step S between the lower surface of the first mounting portion 22A and the lower surface of the second mounting portion 22B. Taking the lower end edge of the attachment portion 22 as a reference, the lower surface of the first attachment portion 22A is at a high position, and the lower surface of the second attachment portion 22B is at a low position.

第１の取付け部２２Ａおよび第２の取付け部２２Ｂともに、下面一部は上方に略山形状に凹陥形成されていて、それぞれの寸法形状は互いに全く同一である。この凹陥部２６の左右両屈曲部は、傾斜部分と下面部に亘って細長い溝状の切欠き部２７が設けられる。そして、取付け部２２の図示しない側部で一方（図中右側）の切欠き部２７の近傍部位には孔部が設けられ、他方（図中左側）の切欠き部２７の近傍部位には矩形状の孔部２８が設けられる。   In both the first attachment portion 22A and the second attachment portion 22B, a part of the lower surface is recessed upward in a substantially mountain shape, and the respective dimensional shapes are exactly the same. The left and right bent portions of the recessed portion 26 are provided with elongated groove-shaped notches 27 extending between the inclined portion and the lower surface portion. Further, a hole is provided in the vicinity of one (right side in the drawing) of the notch 27 on the side (not shown) of the mounting portion 22, and a rectangular portion is provided in the vicinity of the other (left side in the drawing) notch 27. A shaped hole 28 is provided.

左右一対の支持部材３は、互いのボス部２３が内側であるファン１７中心部に対向し、第２の取付け部２２Ｂが外側である本体ケース１１の側面壁に対向するよう配置される。そして、互いのボス部２３はファンケーシング１６の下面開口部１６ａを介して互いに対向するように取付けられる。
この換気扇本体１に対して上記化粧カバー２は、図１（Ａ）（Ｂ）のみに示す構成となっている。化粧カバー２は上方が開放される断面皿状で、その周縁の沿う部分のみ板状をなし、大部分は開口される。この開口部に吸込みグリルＧが嵌め込まれ、化粧カバー２の裏面側から取付け具（回動爪）を介して脱着自在に取付けられる。 The pair of left and right support members 3 are arranged so that the boss portions 23 of the left and right faces the central portion of the fan 17 on the inner side, and the second mounting portion 22B faces the side wall of the main body case 11 on the outer side. The boss portions 23 are attached to face each other through the lower surface opening 16 a of the fan casing 16.
With respect to this ventilation fan main body 1, the said decorative cover 2 becomes a structure shown only to FIG. 1 (A) (B). The decorative cover 2 has a cross-sectional dish shape that is open at the top, has a plate shape only along the periphery thereof, and is largely open. A suction grill G is fitted into the opening, and is detachably attached from the back side of the decorative cover 2 via an attachment (rotating claw).

さらに、化粧カバー２の裏面側における左右に対向する部位に、係合部である係合金具５が取付けられる。係合金具５は基端部が取付けねじ等の取付け具を介して化粧カバー２の板体部分に取付けられ、必要な剛性を確保している。基端部から化粧カバー２の内側に向かって係合片部Ｋが突設されていて、この係合片部Ｋの先端は図５に示すように先端以外の部分よりも幅寸法が大になっている。   Furthermore, the engagement metal fitting 5 which is an engagement part is attached to the part which opposes right and left in the back side of the decorative cover 2. The engagement metal fitting 5 has a base end portion attached to the plate portion of the decorative cover 2 via an attachment such as an attachment screw, and ensures necessary rigidity. An engagement piece K is projected from the base end toward the inside of the decorative cover 2, and the distal end of the engagement piece K is larger in width than the portion other than the distal end as shown in FIG. It has become.

上記係合片部Ｋの先端と上記支持部材３のいずれかの取付け部２２とは弾性掛止部材であるばね部材４が係り合う。このばね部材４は図４に示す形状構造となっていて、化粧カバー２を取付け保持するのに必要な剛性を有する太さのばね線から構成される。ばね部材４は、複数回旋回される所定直径の環状部３５と、この環状部３５の両端部から一体に、かつ左右に延設される２本の腕部３６とからなる。互いの腕部３６はある程度曲線状に形成され、先端は略フック状にした引掛け部３７となっている。   The tip of the engagement piece K and the attachment portion 22 of any one of the support members 3 are engaged with a spring member 4 that is an elastic latch member. The spring member 4 has a shape structure shown in FIG. 4 and is composed of a spring wire having a thickness required to attach and hold the decorative cover 2. The spring member 4 includes an annular portion 35 having a predetermined diameter that is swung a plurality of times, and two arm portions 36 that extend integrally from both ends of the annular portion 35 and to the left and right. The mutual arm portions 36 are formed in a curved shape to some extent, and the tip is a hook portion 37 having a substantially hook shape.

上記ばね部材４は、使用されない状態で２本の腕部３６が実線で示すように左右に大きく拡がっており、使用に先立って２本の腕部３６を弾性力に抗して互いに内側に押圧して、図４に二点鎖線で示すように狭める。さらに、腕部３６先端の引掛け部３７相互が近接する位置まで腕部３６を弾性変形させてよい。
この状態を保持し、後述するような条件から上記支持部材３の第１、第２の取付け部２２Ａ，２２Ｂのいずれかを選択して、ばね部材４を取付ける。すなわち、両方の引掛け部３７を狭めた状態にしていずれかの取付け部２２の凹陥部２６に対向し、かつ切欠き部２７に挿入する。そして、腕部３６に対する付勢力を除去する。腕部３６には弾性復帰力が作用して、再び図４に実線で示す左右に拡がった形態に戻る。 When the spring member 4 is not used, the two arm portions 36 are greatly expanded to the left and right as indicated by solid lines, and the two arm portions 36 are pressed against each other against the elastic force before use. Then, as shown by the two-dot chain line in FIG. Further, the arm portion 36 may be elastically deformed to a position where the hook portions 37 at the tips of the arm portions 36 are close to each other.
While maintaining this state, the spring member 4 is attached by selecting one of the first and second mounting portions 22A and 22B of the support member 3 from the conditions described later. That is, both the hooks 37 are narrowed so as to face the recessed portion 26 of one of the attachment portions 22 and to be inserted into the notch 27. And the urging | biasing force with respect to the arm part 36 is removed. An elastic return force acts on the arm portion 36 to return to the left and right expanded form shown by the solid line in FIG.

図３に示す支持部材３の取付け部２２に上述するばね部材４が装着されると、図の右側の切欠き部２７に挿入される右側の引掛け部３７は支持部材３の右側部から突出し、ついには右側の腕部３６のほとんど全体が支持部材３側部から突出する。図の左側の切欠き部２７に挿入される左側の引掛け部３７は支持部材３の裏面側へ突出し、ついには左側の腕部３６のほとんど全体が支持部材３の裏面側へ突出する。その結果、ばね部材４の環状部３５が取付け部２２を構成する凹陥部２６に挿入され、かつ密着状態となる。   When the above-described spring member 4 is attached to the attachment portion 22 of the support member 3 shown in FIG. 3, the right hook portion 37 inserted into the right cutout portion 27 in the drawing protrudes from the right side portion of the support member 3. Finally, almost the entire right arm portion 36 protrudes from the side of the support member 3. The left hook 37 inserted into the left cutout 27 in the drawing protrudes toward the back side of the support member 3, and finally the entire left arm portion 36 protrudes toward the back side of the support member 3. As a result, the annular portion 35 of the spring member 4 is inserted into the recessed portion 26 constituting the attachment portion 22 and is brought into a close contact state.

化粧カバー２を換気扇本体１に取付けるには、取付け部２２の凹陥部２６に密着しているばね部材４の環状部３５を持って引き降ろす。環状部３５とともに腕部３６は弾性変形しながら、切欠き部２７から引き出される。最大限引き出すことにより、必然的に引掛け部３７が切欠き部２７と孔部２８との間の部分に掛止され、それ以上の引き出しは規制される。   In order to attach the decorative cover 2 to the ventilation fan body 1, the decorative cover 2 is pulled down by holding the annular portion 35 of the spring member 4 in close contact with the recessed portion 26 of the attachment portion 22. The arm portion 36 together with the annular portion 35 is pulled out from the cutout portion 27 while being elastically deformed. By pulling out as much as possible, the hooking portion 37 is inevitably hooked at a portion between the notch portion 27 and the hole portion 28, and further drawing is restricted.

この状態を保持して、図５に示すように化粧カバー２に設けられる係合金具５の係合片部Ｋをばね部材４の環状部３５に挿入する。係合片部Ｋの先端が確実に環状部３５に挿入したことを確認したら、化粧カバー２を軽く上方へ押し出し付勢する。すると、ばね部材４の腕部３６に再び弾性復帰力が作用して、引掛け部３７とともに腕部３６が切欠き部２７から突出し、環状部３５が上方へ移動する。環状部３５に掛止状態にある係合片部Ｋを介して化粧カバー２が持ち上げられ、ついには化粧カバー２の上端縁が天井板１０に密着する。すなわち、化粧カバー２はばね部材４の弾性力で換気扇本体１に装着される。   In this state, the engagement piece K of the engagement fitting 5 provided on the decorative cover 2 is inserted into the annular portion 35 of the spring member 4 as shown in FIG. When it is confirmed that the tip of the engagement piece K is securely inserted into the annular portion 35, the decorative cover 2 is lightly pushed upward and biased. Then, an elastic return force acts again on the arm portion 36 of the spring member 4, the arm portion 36 protrudes from the notch portion 27 together with the hook portion 37, and the annular portion 35 moves upward. The decorative cover 2 is lifted via the engagement piece K that is hooked to the annular portion 35, and finally the upper end edge of the decorative cover 2 comes into close contact with the ceiling plate 10. That is, the decorative cover 2 is attached to the ventilation fan body 1 by the elastic force of the spring member 4.

図６（Ａ）は、天井板１０に対する補強構造を示していて、天井板１０に設けられる取付け用開口部１０ａの周縁に沿い、天井板１０の上面に補強用枠体（いわゆる、野縁）３０が設けられる。換気扇本体１は補強用枠体３０の内側開口部３０ａと天井板１０に設けられる取付け用開口部１０ａに挿入される。換気扇本体１の下面開口部１２周縁に沿って設けられる鍔部１３が天井板１０下面（部屋Ｒ対向面でもある）に露出し、取付け具を介して取付けられる。   FIG. 6A shows a reinforcing structure for the ceiling board 10, and a reinforcing frame (so-called field edge) is formed on the upper surface of the ceiling board 10 along the periphery of the mounting opening 10 a provided in the ceiling board 10. 30 is provided. The ventilation fan body 1 is inserted into the inner opening 30 a of the reinforcing frame 30 and the mounting opening 10 a provided in the ceiling plate 10. A flange 13 provided along the periphery of the lower surface opening 12 of the ventilation fan body 1 is exposed on the lower surface of the ceiling plate 10 (also facing the room R) and is attached via a fixture.

このような天井板１０に対する補強構造と、換気扇本体１の天井板１０に対する取付け構造であるので、換気扇本体１に対して化粧カバー２の取付け位置が近い場合の、化粧カバー２の取付け構造となる。
そこで、図６（Ａ）（Ｂ）に示すように、ばね部材４の引掛け部３７を挿入する対象先は上段側の第１の取付け部２２Ａを選択する。同図は、ばね部材４の引掛け部３７を第１の取付け部２２Ａの切欠き部２７に挿入して左右の腕部３６を拡げさせたあと、環状部３５を持って引き降ろし引掛け部３７を第１の取付け部２２Ａに掛止させた状態を示す。 Since the reinforcing structure for the ceiling plate 10 and the structure for attaching the ventilation fan body 1 to the ceiling board 10 are provided, the structure for attaching the decorative cover 2 when the attachment position of the decoration cover 2 is close to the ventilation fan body 1 is obtained. .
Therefore, as shown in FIGS. 6A and 6B, the first attachment portion 22A on the upper stage side is selected as the target to which the hook portion 37 of the spring member 4 is inserted. In this figure, the hook portion 37 of the spring member 4 is inserted into the notch portion 27 of the first mounting portion 22A to expand the left and right arm portions 36, and then the holding portion 37 is pulled down with the annular portion 35. Shows a state in which is hooked on the first mounting portion 22A.

図７（Ａ）は、天井板１０に対する別の補強構造を示していて、天井板１０に設けられる取付け用開口部１０ａの周縁に沿い、天井板１０の上面に補強用枠体（いわゆる、野縁）３０が設けられる。換気扇本体１の下面開口部１２周縁に沿って設けられる鍔部１３は、補強用枠体３０の上面に取付け具を介して取付けられる。
このような天井板１０に対する補強構造と、換気扇本体１の天井板１０に対する取付け構造であるので、換気扇本体１に対して化粧カバー２の取付け位置が遠い場合の化粧カバー２の取付け構造となる。 FIG. 7A shows another reinforcing structure for the ceiling board 10, and a reinforcing frame (so-called field) is formed on the upper surface of the ceiling board 10 along the periphery of the mounting opening 10 a provided in the ceiling board 10. Edge) 30 is provided. The flange 13 provided along the periphery of the lower surface opening 12 of the ventilation fan body 1 is attached to the upper surface of the reinforcing frame 30 via an attachment.
Since the reinforcing structure for the ceiling plate 10 and the structure for attaching the ventilation fan body 1 to the ceiling board 10 are the attachment structure for the decorative cover 2 when the attachment position of the decorative cover 2 is far from the ventilation fan body 1.

そこで、図７（Ａ）（Ｂ）に示すように、ばね部材４の引掛け部３７を挿入する対象先は下段側の第２の取付け部２２Ｂを選択する。同図は、ばね部材４の引掛け部２２Ｂを第２の取付け部２２Ｂの切欠き部２７に挿入して左右の腕部３６を拡げさせたあと、環状部３５を持って引き降し引掛け部３７を第２の取付け部２２Ｂに掛止させた状態を示す。   Accordingly, as shown in FIGS. 7A and 7B, the second attachment portion 22B on the lower stage side is selected as the target to which the hook portion 37 of the spring member 4 is inserted. In this figure, the hook portion 22B of the spring member 4 is inserted into the notch portion 27 of the second mounting portion 22B to expand the left and right arm portions 36, and then pulled down with the annular portion 35. The state which hooked the part 37 to the 2nd attachment part 22B is shown.

図６および図７のいずれの構成であっても、ばね部材４の環状部３５が天井板１０から部屋Ｒ側へ充分突出することになるので、環状部３５に化粧カバー２に設けられる係合金具５の係合片部Ｋを挿入し易い。一旦挿入したあとは、化粧カバー２を軽く押上げればばね部材４の腕部３６による弾性復帰力の作用で化粧カバー２は引き上げられ、天井板１０に確実に密着する。したがって、化粧カバー２の取付けが極めて容易で作業性の向上を得られる。   6 and 7, the annular portion 35 of the spring member 4 sufficiently protrudes from the ceiling plate 10 to the room R side. Therefore, the engagement metal provided on the decorative cover 2 on the annular portion 35. It is easy to insert the engagement piece K of the tool 5. Once inserted, if the decorative cover 2 is lightly lifted up, the decorative cover 2 is pulled up by the action of the elastic restoring force by the arm portion 36 of the spring member 4, and is securely in close contact with the ceiling plate 10. Therefore, it is extremely easy to attach the decorative cover 2 and workability can be improved.

このとき、引掛け部３７と腕部３６の一部が取付け部２２の切欠き部２７から突出して余裕のある状態になる。腕部３６が伸び切るような無理な力が加わった状態ではないから、係合片部Ｋに過大な力が加わることもなく、破断等の虞れをなくして信頼性の向上を得られる。
メンテナンスにあたって化粧カバー２を持って引き降ろすと、係合金具５を介してばね部材４が引下げられる。化粧カバー２と天井板１０との間に隙間が生じ、この隙間から目視して係合金具５の係合片部Ｋをばね部材４の環状部３５から引き抜けばよい。このようにして、化粧カバー２の取外しの作業も極めて容易であり、作業性の向上を得られる。 At this time, a part of the hook part 37 and the arm part 36 protrudes from the notch part 27 of the attachment part 22 to be in a state with a margin. Since it is not in a state where an excessive force is applied to extend the arm portion 36, an excessive force is not applied to the engagement piece K, and there is no fear of breakage and the like, and an improvement in reliability can be obtained.
When the maintenance cover 2 is pulled down for maintenance, the spring member 4 is pulled down via the engagement fitting 5. A gap is formed between the decorative cover 2 and the ceiling board 10, and the engagement piece K of the engagement fitting 5 may be pulled out from the annular portion 35 of the spring member 4 by visual observation from the gap. In this way, the operation of removing the decorative cover 2 is extremely easy, and the workability can be improved.

なお、上述した実施例構造では、取付け部２２において第１の取付け部２２Ａと第２の取付け部２２Ｂを備えた二段構成としたが、この数に限定されるものではなく、それ以上の多段構成であっても何らの支障もない。弾性掛止部材４であるばね部材の形態は図の構成に限定されるものではなく、種々の変形実施例が考えられる。天井板１０に対する補強構造は図の構成に限定されるものではなく、種々の変形実施例が考えられる。要は、本発明の要旨を越えない範囲内で種々変形実施が可能である。   In the structure of the above-described embodiment, the mounting portion 22 has a two-stage configuration including the first mounting portion 22A and the second mounting portion 22B. However, the number of the mounting portions is not limited to this number. Even if it is a structure, there is no trouble. The form of the spring member which is the elastic latching member 4 is not limited to the configuration shown in the figure, and various modified embodiments can be considered. The reinforcing structure for the ceiling plate 10 is not limited to the configuration shown in the figure, and various modified embodiments can be considered. In short, various modifications can be made without departing from the scope of the present invention.

本発明の実施例に係る、互いに換気扇本体に化粧カバーを取付ける状態を説明する図。The figure explaining the state which attaches a decorative cover to a ventilation fan main body mutually based on the Example of this invention. 同実施例に係る、換気扇本体の一部を分解した斜視図。The perspective view which decomposed | disassembled some ventilation fan main bodies based on the Example. 同実施例に係る、取付け部の斜視図。The perspective view of the attaching part based on the Example. 同実施例に係る、ばね部材の正面図。The front view of the spring member based on the Example. 同実施例に係る、ばね部材の環状部に係合金具の係合片部を挿入する図。The figure which inserts the engagement piece part of an engagement metal fitting into the annular part of a spring member based on the Example. 同実施例に係る、第１の取付け部にばね部材を取付けた状態の換気扇本体の断面図と一部斜視図。Sectional drawing and a partial perspective view of the ventilation fan main body of the state which attached the spring member to the 1st attaching part based on the Example. 同実施例に係る、第２の取付け部にばね部材を取付けた状態の換気扇本体の断面図と一部斜視図。Sectional drawing and a partial perspective view of the ventilation fan main body of the state which attached the spring member to the 2nd attachment part based on the Example.

符号の説明Explanation of symbols

Ｒ…部屋、１０…天井板、１０ａ…取付け用開口部、１２…開口部、１７…ファン、１８…ファン駆動用モータ、１５…送風機、１…換気扇本体、２２…取付け部、３…支持部材、３…係合金具（係合部）、３５…環状部、３６…腕部、４…ばね部材（弾性掛止部材）、２２Ａ…第１の取付け部、２２Ｂ…第２の取付け部。   R ... room, 10 ... ceiling board, 10a ... mounting opening, 12 ... opening, 17 ... fan, 18 ... fan driving motor, 15 ... blower, 1 ... ventilating fan body, 22 ... mounting section, 3 ... supporting member DESCRIPTION OF SYMBOLS 3 ... Engagement metal fitting (engagement part), 35 ... Annular part, 36 ... Arm part, 4 ... Spring member (elastic latching member), 22A ... 1st attachment part, 22B ... 2nd attachment part.

Claims (1)

部屋の天井板に設けられる取付け用開口部に取付けられて天井裏に配設され、部屋に臨ませられる開口部を有するとともに、内部にファンケーシングおよび、このファンケーシング内に備えられるファンとファン駆動用モータからなる送風機を収容する換気扇本体と、
この換気扇本体を構成する上記ファンケーシングの下面部で、かつ左右側部に対向する位置に一対備えられる取付け部および、それぞれの取付け部に一体に連設され取付けねじを介してファンケーシングに取付け固定されるボス部とを有する支持部材と、
係合部を有する化粧カバーと、
この化粧カバーの係合部が挿脱自在に挿入される環状部およびこの環状部と一体に設けられ互いの弾性拡がり力により上記換気扇本体に設けられる支持部材の取付け部に弾性的に保持される２本の腕部を備え、換気扇本体の開口部に化粧カバーを部屋側から脱着自在に取付け保持する弾性掛止部材とを具備し、
上記支持部材における取付け部は、所定の高さの段差を存して複数段形成され、それぞれの取付け部は下面一部が上方に略山形状に凹陥形成され、この凹陥部の左右屈曲部である傾斜部分と下面部とに亘って上記弾性掛止部材を掛止するための細長い溝状の切欠部が設けられ、
上記弾性掛止部材は、必要な高さ位置の取付け部を選択して取付けられることを特徴とする天井用換気扇。 It is attached to an opening for installation provided on the ceiling plate of the room and is disposed on the back of the ceiling, and has an opening facing the room. Inside the fan casing, the fan provided in the fan casing and the fan drive A ventilation fan body that houses a blower comprising a motor for the motor;
A pair of mounting portions provided at a position facing the left and right side portions of the fan casing constituting the ventilating fan body , and a mounting screw integrally connected to each mounting portion and fixed to the fan casing via mounting screws. A support member having a boss portion to be formed;
A decorative cover having an engaging portion;
An annular portion into which the engaging portion of the decorative cover is removably inserted and an attachment portion of the support member provided integrally with the annular portion and provided in the ventilation fan main body by the elastic expansion force of each other are elastically held. Comprising two arms, and an elastic latch member that attaches and holds a decorative cover to the opening of the ventilation fan body from the room side,
The mounting portion of the support member is formed in a plurality of steps with a step of a predetermined height, and each mounting portion is formed with a concave portion formed in a substantially mountain shape on the lower surface upward. An elongated groove-shaped notch for hooking the elastic hooking member is provided across a certain inclined portion and the lower surface ,
The ceiling fan is characterized in that the elastic latch member is attached by selecting an attachment portion at a required height position .
JP2003370588A 2003-10-30 2003-10-30 Ceiling exhaust fan Expired - Fee Related JP4335640B2 (en)

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