JP4763510B2

JP4763510B2 - Ventilation device

Info

Publication number: JP4763510B2
Application number: JP2006143943A
Authority: JP
Inventors: 賢治西尾; 博喜市岡
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2006-05-24
Filing date: 2006-05-24
Publication date: 2011-08-31
Anticipated expiration: 2026-05-24
Also published as: JP2007315643A

Description

本発明は、室内外を連通する通気開口に室内側から挿入して装着し、室内を自然換気する通風装置に関するものである。 The present invention relates to a ventilating device that is inserted from a room side into a ventilation opening that communicates indoors and outdoors and that naturally ventilates the room.

高気密高断熱の住宅では、換気が不足しがちになるため室内外を連通する通気開口が設けられ、この通気開口に通風装置が設けられることが多い。通風装置としては、風洞の室内側開口部に、これを開閉するシャッタを設けたもので、シャッタは、開閉装置により風洞の中心線方向に動いて風洞の室内側開口部を開閉する。なお、この種の通風装置についての従来技術としては特許文献１，２に開示された技術がある。 In a house with high airtightness and high thermal insulation, ventilation tends to be insufficient, and therefore a ventilation opening communicating with the interior and the exterior is provided, and a ventilation device is often provided in this ventilation opening. As the ventilation device, a shutter that opens and closes the indoor opening of the wind tunnel is provided, and the shutter moves in the direction of the center line of the wind tunnel by the opening and closing device to open and close the indoor opening of the wind tunnel. In addition, there exists a technique disclosed by patent document 1, 2 as a prior art about this kind of ventilation apparatus.

特開２００５−２７３９８０号公報JP-A-2005-273980 特願平１０−１２３６１４号Japanese Patent Application No. 10-123614

従来の通風装置においてシャッタを開閉二様にできるものの他、開閉中立位置に保持できるようにしたものがある。これらは、開閉装置に工夫がなされ、溝カム方式やノック方式が採られ、いずれも、付勢手段でシャッタに連結した伸縮部材を付勢する構成が採られている。しかしながら、溝カム方式のものは構成が複雑で組立も面倒でコストが高くつく。また、ノック方式のものも溝カム方式のものも、シャッタによって隠れる、シャッタに連結した伸縮部材を組付けるのに手間取ることが多い。一番問題なのは、通常、全閉又は全開で使われることが多いシャッタであるが、全閉状態でも全開状態でも付勢手段の付勢力が伸縮部材に掛かっていて、これを保持する構造に常時、偏荷重として加わっていることである。この常時掛かる偏荷重は、これを保持する構造にストレスとなり、撓み癖を付けたり、疲労や破損の原因になり、シャッタの機能を喪失してしまうことにもなりかねない。 In addition to the conventional ventilator that can open and close the shutter, there is one that can be held at the open / close neutral position. These devices are devised in the opening / closing device, adopting a groove cam system or a knock system, and both adopt a configuration in which an expansion / contraction member connected to the shutter is biased by a biasing means. However, the groove cam type has a complicated structure, is difficult to assemble, and is expensive. In addition, both the knock type and the groove cam type often require time and effort to assemble the telescopic member connected to the shutter, which is hidden by the shutter. The most problematic is the shutter that is usually used in the fully closed or fully open state, but the urging force of the urging means is applied to the expansion / contraction member in the fully closed state or the fully open state, and the structure that holds this is always In other words, it is added as an unbalanced load. This unbalanced load that is constantly applied causes stress to the structure that holds the load, which may cause a bending flaw, cause fatigue and breakage, and may lose the function of the shutter.

本発明は、上記した問題点を解決するためになされたものであり、その課題とするところは、構成が簡素で組付け易く、シャッタの機能が長期に亘り維持できる通風装置を得ることである。 The present invention has been made in order to solve the above-described problems, and the object of the present invention is to obtain a ventilation device that has a simple configuration, is easy to assemble, and can maintain the function of the shutter for a long period of time. .

上記課題を解決するために本発明は、室内外を連通する風洞の室内側開口部を、風洞内に設けられた開閉装置により風洞の中心線方向に動いて開閉するシャッタを備えた通風装置について、その開閉装置は、シャッタの背面部に連結される第１のスライダと、第１のスライダに所定の範囲でのスライドを可能に組合せられ、第１のスライダを止めるラチェット状の一方向だけに効くフックを有する弾性変形可能の腕状の係止部を一体に備えた第２のスライダと、第１と第２のスライダを収納するとともに、第２のスライダのスライドを規制し、第１のスライダを伸張方向に付勢する付勢手段を設けた、風洞の中心線に沿って取付けられるケースとからなる。第１のスライダには、係止部のフックが摺動する凹状の中心線方向に長い伸張側と収縮側からなる一連の平面略四角形状のループ状の伸縮路を設ける。伸縮路の一部には、係止部のフックが係脱可能に掛止まるラック状の複数の歯列を設け、第１のスライダの少なくとも最大伸張状態と最大収縮状態においては、第２のスライダの係止部が付勢手段の付勢力の掛かる方向と一致し、弾性撓みしないようにする手段を採用する。 In order to solve the above-mentioned problems, the present invention relates to a ventilation device provided with a shutter that opens and closes an indoor side opening of a wind tunnel communicating with the interior and the exterior by moving in the center line direction of the wind tunnel by an opening and closing device provided in the wind tunnel. The opening / closing device is combined with the first slider connected to the rear surface portion of the shutter and the first slider so as to be able to slide within a predetermined range, and only in one direction of a ratchet shape for stopping the first slider. A second slider integrally provided with an elastically deformable arm-shaped locking portion having a working hook, the first and second sliders are housed, and the sliding of the second slider is restricted, and the first slider The case is provided with a biasing means for biasing the slider in the extending direction and is attached along the center line of the wind tunnel. The first slider is provided with a series of substantially quadrangular loop-like expansion / contraction paths that are elongated and contracted in the direction of the concave center line in which the hook of the locking portion slides. A part of the expansion / contraction path is provided with a plurality of rack-like tooth rows on which hooks of the locking portions are detachably hooked, and the second slider is at least in a maximum extended state and a maximum contracted state. A means is employed in which the latching portion is aligned with the direction in which the urging force of the urging means is applied and is not elastically bent.

本発明によれば、第１と第２のスライダを組付け、付勢手段とともにケースに収納するだけで開閉装置を組立てることができ、第１のスライダの最大伸張状態と最大収縮状態においては付勢手段の付勢力が係止部の方向と一致し、弾性撓みを起こさない状態であるので、付勢力が係止部の撓み癖や疲労や破損の原因になることが少なく、シャッタの機能が長期に亘り維持できる。 According to the present invention, it is possible to assemble the opening / closing device by simply assembling the first and second sliders and storing them in the case together with the urging means, and the first slider is attached in the maximum extended state and the maximum contracted state. Since the urging force of the urging means coincides with the direction of the locking portion and does not cause elastic bending, the urging force is less likely to cause bending wrinkles, fatigue or breakage of the locking portion, and the function of the shutter It can be maintained for a long time.

本発明の通風装置は、室内外を連通するダクトやパイプに室内側から挿入して装着され、室内の換気に供されるものである。装置本体は、室内の壁面に沿って取付けられるフランジの中央にパイプ等に挿入される風洞を一体に備えた本体フレームと、風洞の室内側開口部を、風洞内に設けられた開閉装置により風洞の中心線方向に動いて開閉するシャッタとから構成されている。開閉装置は、シャッタの背面部に連結される樹脂製の角柱状の第１のスライダと、第１のスライダの長手方向に形成されたガイド溝によって、所定の範囲をスライドできるように組合せられ、第１のスライダを止めるラチェット状の伸張方向だけに効くフックを有する弾性変形可能の腕状の係止部を一体に備えた樹脂製の第２のスライダと、第１と第２のスライダを収納するとともに、第２のスライダのスライドを規制し、第１のスライダを伸張方向に付勢する付勢手段としてのコイルスプリングを設けた、風洞の中心線に沿って取付けられる有底の角筒状のケースとからなる。第１のスライダには、係止部のフックが摺動する凹状の中心線方向に長い伸張側と収縮側からなる一連の平面略四角形状のループ状の伸縮路が設けられている。伸縮路の収縮側の一部には、係止部のフックが係脱可能に掛止まるラック状の複数の歯列が設けられている。 The ventilation device of the present invention is inserted into a duct or pipe communicating indoors and outdoors from the room side and is used for indoor ventilation. The main body of the device includes a main body frame integrally provided with a wind tunnel inserted into a pipe or the like at the center of a flange attached along the wall surface of the room, and an indoor side opening of the wind tunnel by an opening / closing device provided in the wind tunnel. And a shutter that opens and closes by moving in the center line direction. The opening / closing device is combined so that a predetermined range can be slid by a resin-made prismatic first slider connected to the rear surface of the shutter and a guide groove formed in the longitudinal direction of the first slider, A resin-made second slider integrally including an elastically deformable arm-like locking portion having a ratchet-like hook that stops only the first slider, and accommodates the first and second sliders In addition, a bottomed rectangular tube shape attached along the center line of the wind tunnel is provided with a coil spring as a biasing means that regulates the sliding of the second slider and biases the first slider in the extending direction. Of the case. The first slider is provided with a series of substantially quadrangular loop-shaped expansion / contraction paths that are long and contracted in the direction of the concave center line on which the hook of the locking portion slides. A part of the contraction side of the telescopic path is provided with a plurality of rack-like tooth rows on which hooks of the locking portions are detachably hooked.

第１のスライダの最大伸張状態では、ガイド溝の後端に第２のスライダが当ることで、コイルスプリングの伸張方向へのバネ力が受けられ、フックを有する弾性変形可能の腕状の係止部は全体は自由状態におかれている。また、最大収縮状態においては、第１のスライダの伸張側と収縮側の中間位の仕切壁における中心線上に形成された最上段の歯列の伸張側面に第２のスライダの係止部の端部が直線上で当ることで、コイルスプリングの伸張方向へのバネ力が受けられ、係止部は弾性変形しない状態で第１のスライダを保持する。第１のスライダの先端部にシャッタが、その背面部の中央で連結され、第１のスライダの伸縮でシャッタの開閉機能を果たす。係脱可能に掛止まるラック状の複数の歯列の一つに係止部のフックの端部が当接することによりシャッタは中間開度に保持されるが、この中間開度で使われることは、日常的ではない。このように本発明によれば、第１と第２のスライダを組付け、圧縮状態に保持したり、伸張状態に保持したりすることなく、自由状態のままのコイルスプリングとともにケースに収納するだけで開閉装置を組立てることができ、第１のスライダの最大伸張状態と最大収縮状態においてはコイルスプリングのバネ力が係止部の方向と一致し、弾性撓みを起こさない状態であるので、バネ力が係止部の撓み癖や疲労や破損の原因になることが少なく、シャッタの開閉機能が長期に亘り維持できる。 In the maximum extension state of the first slider, the second slider hits the rear end of the guide groove, so that the spring force in the extension direction of the coil spring is received, and an elastically deformable arm-like lock having a hook. The entire department is in a free state. Further, in the maximum contracted state, the end of the engaging portion of the second slider is formed on the extended side surface of the uppermost tooth row formed on the center line of the intermediate partition wall between the extended side and the contracted side of the first slider. When the portion hits on a straight line, a spring force in the extending direction of the coil spring is received, and the locking portion holds the first slider without elastic deformation. A shutter is connected to the front end of the first slider at the center of the back surface thereof, and the opening and closing function of the shutter is achieved by the expansion and contraction of the first slider. The shutter is held at an intermediate opening when the end of the hook of the locking portion comes into contact with one of a plurality of rack-like tooth rows that are detachably hooked. , Not everyday. Thus, according to the present invention, the first and second sliders are assembled and stored in the case together with the coil springs in the free state without being held in a compressed state or held in an extended state. In the maximum extension state and the maximum contraction state of the first slider, the spring force of the coil spring coincides with the direction of the locking portion and does not cause elastic deflection. Is less likely to cause bending wrinkles, fatigue or breakage of the locking portion, and the opening / closing function of the shutter can be maintained for a long time.

実施の形態１．
図１は、本実施の形態の通風装置の分解斜視図、図２は、開閉装置の分解斜視図、図３は、第１のスライダの背面図、図４は、第１のスライダの平面図、図５は、第１のスライダの側面図、図６は、第２のスライダの平面図、図７は、第２のスライダの側面図、図８は、伸張状態の開閉装置の断面図、図９は、収縮状態の開閉装置の断面図、図１０は、シャッタと開閉装置との連結を示す部分斜視図、図１１は、本体フレームの正面図、図１２は、他の形態の本体フレームの背面視の斜視図である。 Embodiment 1 FIG.
FIG. 1 is an exploded perspective view of the ventilation device of the present embodiment, FIG. 2 is an exploded perspective view of an opening / closing device, FIG. 3 is a rear view of the first slider, and FIG. 4 is a plan view of the first slider. 5 is a side view of the first slider, FIG. 6 is a plan view of the second slider, FIG. 7 is a side view of the second slider, and FIG. 8 is a cross-sectional view of the open / close device in the extended state. 9 is a sectional view of the opening / closing device in a contracted state, FIG. 10 is a partial perspective view showing the connection between the shutter and the opening / closing device, FIG. 11 is a front view of the main body frame, and FIG. FIG.

本実施の形態の通風装置は、室内外を連通させるパイプやダクトに室内側から挿入して装着するものである。装置本体は、図１に示すように室内の壁面に沿って取付けられる角形の周囲に立上り１を持つフランジ２の中央にパイプ等に挿入される風洞３を一体に備えた本体フレーム４と、風洞３の室内側開口部を、風洞３内に設けられた図２に示す開閉装置５により風洞３の中心線方向に動いて開閉するシャッタ６とから構成されている。 The ventilation device according to the present embodiment is installed by being inserted from the indoor side into a pipe or duct that communicates indoors and outdoors. As shown in FIG. 1, the apparatus main body includes a main body frame 4 integrally provided with a wind tunnel 3 inserted into a pipe or the like at the center of a flange 2 having a rise 1 around a square attached along a wall surface of a room, and a wind tunnel 3 is provided with a shutter 6 that opens and closes by moving in the direction of the center line of the wind tunnel 3 by the opening and closing device 5 shown in FIG.

開閉装置５は、シャッタ６の背面部にスライド連結される樹脂製の四角柱状の第１のスライダ７と、図３に示す第１のスライダ７の長手方向に形成された二列のガイド溝８によって、所定の範囲をスライドできるように組合せられ、第１のスライダ７を止めるラチェット状の伸張方向だけに効くフック９を有する弾性変形可能の腕状の係止部１０を一体に備えた樹脂製の第２のスライダ１１（図６，図７参照）、第１と第２のスライダ７，１１を組付け状態で収納するとともに、第２のスライダ１１のスライドを規制し、第１のスライダ７を伸張方向に付勢するコイルスプリング１２を設けた、風洞３の中心線に沿って取付けられる有底の四角筒状のケース１３とからなる。 The opening / closing device 5 includes a resin-made square pillar-shaped first slider 7 that is slidably connected to the back surface of the shutter 6, and two rows of guide grooves 8 formed in the longitudinal direction of the first slider 7 shown in FIG. 3. Is made of a resin integrally provided with an elastically deformable arm-like locking portion 10 having a hook 9 that is combined only so as to be slidable within a predetermined range and works only in a ratchet-like extension direction for stopping the first slider 7. The second slider 11 (see FIGS. 6 and 7), the first and second sliders 7 and 11 are housed in an assembled state, and the sliding of the second slider 11 is restricted, so that the first slider 7 And a bottomed rectangular tube-shaped case 13 attached along the center line of the wind tunnel 3 provided with a coil spring 12 for urging in the extending direction.

係止部１０は、風洞３の中心線と略平行に延びるように形成される。第１のスライダ７には、係止部１０のフック９が摺動する凹状の中心線方向に長い伸張側の通路１４と収縮側の通路１５からなる一連の平面略四角形状のループ状の伸縮路１６が中心線を跨いで設けられている（図３参照）。伸張側の通路１４には、開閉装置５を伸張させる際（シャッタ６を開く際）に、フック９が通過する。収縮側の通路１５には、前記開閉装置を収縮させる際（シャッタ６を閉じる際）にフック９が通過する。シャッタ６の全開時には、フック９が伸縮路１６の紙面最下方（シャッタ６の全開時にフック９が嵌まる領域）に位置するため、係止部１０の延長線に垂直な方向からの力がフック９には加わらず、係止部１０に偏荷重は加わらない。伸縮路１６の収縮側の通路１５には、係止部１０のフック９が掛止まって、開閉装置５の伸張を規制するラック状の複数の歯列１７が設けられている。歯列１７は、収縮方向側の面はフック９の端部が当接し掛け止まるように構成されている。最先端の歯列１７の先端側には、伸張側の通路１４の伸縮路１６に係止部１０のフック９を誘導する斜面１８を有する解除手段１９が設けられている。伸縮路１６の最後端で伸張側の通路１４と収縮側の通路１５を分ける仕切壁２０の端も収縮側へ勾配が付けられた解除手段１９が設けられている（図３参照）。伸縮路１６の収縮側の通路１５は、最大収縮段に向かって幅方向外側に向かって広がって形成されている。すなわち、伸縮路１６は、収縮側の通路１５において、その途中まで（係止部１０を弾性変形させる領域で）紙面上方に向かうにしたがって、係止部１０の延長線から離間するように形成されている。開閉装置５が収縮するにしたがって、フック９は収縮側の通路１５を紙面上方に向かって進むので、フック９は係止部１０の延長線から離間し、それに伴って係止部１０が弾性変形し、係止部１０に対して自身の延長方向に垂直な方向に偏荷重が加わる。最大収縮段へ向かう溝底には係止部１０のフック９の摩擦抵抗を大きくする突条２１が形成されている。フック９が係止部１０の延長線からある程度離間すると、収縮側の通路１５は、係止部１０の延長線に近接する方向、かつ係止部１０の延長線に略垂直方向に延びる（シャッタ６の全閉時にフック９が嵌まる領域につながる領域）。この構成により、シャッタ６を全開状態から押し込んでいくと、係止部１０の弾性力によってフック９が係止部１０の延長線に近接する方向に移動し、係止部１０が元の形状に復元する。収縮側の通路１５の伸縮路１６の広がりは、最収縮位置への移行経路を長く取り、シャッタ６が全閉状態になった確かな感触を得るためである。 The locking part 10 is formed so as to extend substantially parallel to the center line of the wind tunnel 3. The first slider 7 has a series of substantially quadrangular loop-like expansions and contractions composed of an extension-side passage 14 and a contraction-side passage 15 that are long in the direction of the concave center line on which the hook 9 of the locking portion 10 slides. A path 16 is provided across the center line (see FIG. 3). The hook 9 passes through the extension-side passage 14 when the opening / closing device 5 is extended (when the shutter 6 is opened). The hook 9 passes through the contraction-side passage 15 when the opening / closing device is contracted (when the shutter 6 is closed). When the shutter 6 is fully opened, the hook 9 is located at the lowermost part of the paper surface of the expansion / contraction path 16 (a region where the hook 9 is fitted when the shutter 6 is fully opened), so that the force from the direction perpendicular to the extension line of the locking portion 10 is 9 is not applied, and an offset load is not applied to the locking portion 10. The telescopic channel 16 of the contraction side of the passage 15, the hook 9 of the locking portion 10 is I Tomah multiplied, rack-like plurality of teeth 17 for regulating the extension of the opening and closing device 5 is provided. The tooth row 17 is configured such that the end of the hook 9 comes into contact with the surface on the contraction direction side and stops. A release means 19 having a slope 18 for guiding the hook 9 of the locking portion 10 to the telescopic path 16 of the extension side passage 14 is provided on the distal end side of the most advanced tooth row 17. The end of the partition wall 20 that divides the expansion-side passage 14 and the contraction-side passage 15 at the end of the expansion / contraction path 16 is also provided with a release means 19 that is inclined toward the contraction side (see FIG. 3). The contraction-side passage 15 of the expansion / contraction path 16 is formed to expand outward in the width direction toward the maximum contraction stage . That is, the expansion / contraction path 16 is formed so as to be separated from the extension line of the locking portion 10 toward the upper side of the passage 15 on the contraction side (in a region where the locking portion 10 is elastically deformed). ing. As the opening / closing device 5 contracts, the hook 9 advances through the contraction-side passage 15 upward in the drawing, so that the hook 9 moves away from the extension line of the locking portion 10 and the locking portion 10 is elastically deformed accordingly. Then, an offset load is applied to the locking portion 10 in a direction perpendicular to its extending direction. A ridge 21 is formed on the groove bottom toward the maximum contraction step to increase the frictional resistance of the hook 9 of the locking portion 10. When the hook 9 is separated from the extension line of the locking part 10 to some extent, the contraction-side passage 15 extends in a direction close to the extension line of the locking part 10 and in a direction substantially perpendicular to the extension line of the locking part 10 (shutter). 6 is a region connected to a region in which the hook 9 is fitted when fully closed. With this configuration, when the shutter 6 is pushed in from the fully open state, the hook 9 is moved in the direction close to the extension line of the locking portion 10 by the elastic force of the locking portion 10, and the locking portion 10 is restored to its original shape. Restore. The expansion of the expansion / contraction path 16 of the path 15 on the contraction side is to take a long transition path to the most contracted position and to obtain a reliable feel that the shutter 6 is fully closed.

第２のスライダ１１は、第１のスライダ７に略一致する寸法の平面長方形状の盤状に形成され、その先端部背面には、第１のスライダ７のガイド溝８内を摺動するストッパ突起２２が形成されている（図６参照）。係止部１０はストッパ突起２２の後方に設けられた窓の中央に背後にフック９を向けて形成されている。そして、後端背面には弾性変形可能な係止突起２３が形成され、この係止突起２３でケース１３に係止されるようになっている。 The second slider 11 is formed in a planar rectangular disk shape having a size substantially coincident with the first slider 7, and a stopper that slides in the guide groove 8 of the first slider 7 is provided on the rear surface of the front end portion. A protrusion 22 is formed (see FIG. 6). The locking portion 10 is formed in the center of a window provided behind the stopper projection 22 with the hook 9 facing behind. An elastically deformable locking projection 23 is formed on the rear end rear surface, and is locked to the case 13 by the locking projection 23.

第１のスライダ７の先端にはシャッタ６をスライド結合させる結合構造２４が設けられている（図４，１０参照）。シャッタ６の背面部中央には、縦断面Ｔ字状の連結片２５が背面側に突出して形成され、これを上方からのスライドにより抱き込むように抱える保持片２６と嵌合溝２７と連結片２５を係着する弾性撓みの可能なフック２８とで結合構造２４が構成されている。これにより、シャッタ６の裏側で、目視できない箇所の第１のスライダ７とシャッタ６との連結を手間取らずに行うことができる。なお、シャッタ６の背面には結露防止のための断熱材２９が貼設され、本体フレーム４のフランジ２周辺に設けた立上り１には、シャッタ６との密着性及び全閉させる時の消音及び気密のためのパッキン３０が貼設されている。 A coupling structure 24 for slidingly coupling the shutter 6 is provided at the tip of the first slider 7 (see FIGS. 4 and 10). A connecting piece 25 having a T-shaped vertical cross section is formed at the center of the rear surface of the shutter 6 so as to protrude to the rear side, and a holding piece 26, a fitting groove 27, and a connecting piece that are held by being slid from above. The coupling structure 24 is constituted by an elastically bendable hook 28 that engages 25. Thereby, it is possible to connect the first slider 7 and the shutter 6 at a portion that cannot be seen on the back side of the shutter 6 without taking time and effort. A heat insulating material 29 for preventing condensation is affixed to the back of the shutter 6, and the rise 1 provided around the flange 2 of the main body frame 4 has close contact with the shutter 6, noise reduction when fully closed, An airtight packing 30 is attached.

さらに、フランジ２にはネジ付けする時のためのネジ付け用の凹部３１が四隅に設けられ、その中心にはネジ付けの際の位置の目安としてネジの先をガイドするガイド窪み３２が設けられている（図１１参照）。本体フレーム４の風洞３の室内開側口部寄りの風洞３内には図１１に示すように保持手段で保持されたフィルタが設けられ、フィルタの室内側開口部側の風洞３下部には円弧状の堰３３が形成され、フィルタに捉えられた霧等の水の室内側への浸入を防止している。なお、風洞３は、設置部の壁厚などの違いに対応すべく、長めに形成し、一部で連結した数本の周方向スリット３４を設け、必要に応じ周方向スリット３４で切断するようにしてもよい（図１２参照）。 Further, the flange 2 is provided with screwing recesses 31 for screwing at the four corners, and a guide recess 32 for guiding the tip of the screw is provided at the center as a guide for the position at the time of screwing. (See FIG. 11). As shown in FIG. 11, a filter held by a holding means is provided in the wind tunnel 3 of the main body frame 4 near the indoor opening side opening portion of the wind tunnel 3, and a circular shape is provided below the wind tunnel 3 on the indoor opening side of the filter. An arc-shaped weir 33 is formed to prevent water such as mist caught by the filter from entering the room. In addition, the wind tunnel 3 is formed to be longer to cope with a difference in the wall thickness of the installation portion, and is provided with several circumferential slits 34 connected in part, and is cut by the circumferential slit 34 as necessary. You may make it (refer FIG. 12).

図８に示す第１のスライダ７の最大伸張状態では、ガイド溝８の後端に第２のスライダ１１のストッパ突起２２が当ることで、コイルスプリング１２の伸張方向へのバネ力が受けられ、フック９を有する弾性変形可能の腕状の係止部１０全体は自由状態におかれている。また、図９に示す最大収縮状態においては、第１のスライダ７の伸張側１４と収縮側１５の中間位の仕切壁２０における中心線上に形成された最上段の歯列１７の伸張側１４の面に第２のスライダ１１の係止部１０の端部が直線上で当ることで、コイルスプリング１２の伸張方向へのバネ力が受けられ、係止部１０は弾性変形しない状態で第１のスライダ７を保持する。第１のスライダ７の先端部にシャッタ６が、その背面部の中央で連結され、第１のスライダ７の伸縮でシャッタ６の開閉機能を果たす。係脱可能に掛止まるラック状の複数の歯列１７の一つに係止部１０のフック９の端部が当接することによりシャッタ６は中間開度に保持されるが、この中間開度で使われることは、日常的ではない。 In the maximum extension state of the first slider 7 shown in FIG. 8, the stopper protrusion 22 of the second slider 11 hits the rear end of the guide groove 8, so that the spring force in the extension direction of the coil spring 12 is received. The elastically deformable arm-like locking portion 10 having the hook 9 is left in a free state. Further, in the maximum contraction state shown in FIG. 9, the extension side 14 of the uppermost tooth row 17 formed on the center line of the partition wall 20 at the intermediate position between the extension side 14 and the contraction side 15 of the first slider 7. When the end of the locking portion 10 of the second slider 11 hits the surface in a straight line, the spring force in the extension direction of the coil spring 12 is received, and the locking portion 10 is not elastically deformed and the first portion is not elastically deformed. The slider 7 is held. The shutter 6 is connected to the front end of the first slider 7 at the center of the back surface thereof, and the opening and closing function of the shutter 6 is achieved by the expansion and contraction of the first slider 7. The shutter 6 is held at an intermediate opening by the end of the hook 9 of the locking portion 10 coming into contact with one of a plurality of rack-like tooth rows 17 that are detachably hooked. Being used is not everyday.

しかし、中間開度の状態でも歯列１７の掛かり止る面を仕切壁２０の中心線上にまで入り込ませれば、係止部１０に弾性撓みを起こさせずに第１のスライダ７を保持することができる。なお、歯列１７については伸縮路１６の伸張側１４に設けても良い。このように本実施の形態によれば、第１と第２のスライダ７，１１を組付け、自由状態のコイルスプリング１２とともにケース１３に収納するだけで開閉装置５を組立てることができ、第１のスライダ７の最大伸張状態と最大収縮状態においてはコイルスプリング１２のバネ力が係止部１０の腕の方向と一致し、弾性撓みを起こさない状態であるので、バネ力が係止部１０の撓み癖や疲労や破損の原因になることが少なく、シャッタ６の開閉機能が長期に亘り維持できる。 However, the first slider 7 can be held without causing the latching portion 10 to bend elastically if the surface on which the tooth row 17 is stopped is inserted to the center line of the partition wall 20 even in the intermediate opening state. it can. The tooth row 17 may be provided on the extension side 14 of the telescopic path 16. As described above, according to the present embodiment, the first and second sliders 7 and 11 are assembled, and the opening / closing device 5 can be assembled simply by housing it in the case 13 together with the coil spring 12 in the free state. In the maximum extension state and the maximum contraction state of the slider 7, the spring force of the coil spring 12 coincides with the direction of the arm of the locking portion 10, and no elastic bending occurs. It is unlikely to cause bending wrinkles, fatigue or breakage, and the opening / closing function of the shutter 6 can be maintained for a long period of time.

通風装置の分解斜視図である。（実施の形態１）It is a disassembled perspective view of a ventilation apparatus. (Embodiment 1) 開閉装置の分解斜視図である。（実施の形態１）It is a disassembled perspective view of an opening / closing device. (Embodiment 1) 第１のスライダの背面図である。（実施の形態１）It is a rear view of a 1st slider. (Embodiment 1) 第１のスライダの平面図である。（実施の形態１）It is a top view of the 1st slider. (Embodiment 1) 第１のスライダの側面図である。（実施の形態１）It is a side view of the 1st slider. (Embodiment 1) 第２のスライダの平面図である。（実施の形態１）It is a top view of the 2nd slider. (Embodiment 1) 第２のスライダの側面図である。（実施の形態１）It is a side view of the 2nd slider. (Embodiment 1) 伸張状態の開閉装置の断面図である。（実施の形態１）It is sectional drawing of the opening / closing apparatus of an expansion | extension state. (Embodiment 1) 収縮状態の開閉装置の断面図である。（実施の形態１）It is sectional drawing of the opening / closing apparatus of a contracted state. (Embodiment 1) シャッタと開閉装置との連結を示す部分斜視図である。（実施の形態１）It is a fragmentary perspective view which shows connection with a shutter and an opening / closing apparatus. (Embodiment 1) 本体フレームの正面図である。（実施の形態１）It is a front view of a main body frame. (Embodiment 1) 他の形態の本体フレームの背面視の斜視図である。（実施の形態１）It is a perspective view of the back view of the main body frame of another form. (Embodiment 1)

符号の説明Explanation of symbols

３風洞、４本体フレーム、５開閉装置、６シャッタ、７第１のスライダ、８ガイド溝、９フック、１０係止部、１１第２のスライダ、１２コイルスプリング、１３ケース、１４伸張側、１５収縮側、１６伸縮路、１７歯列、２４結合構造、２６保持片、２７嵌合溝、２８フック。 3 Wind tunnel, 4 Body frame, 5 Opening / closing device, 6 Shutter, 7 First slider, 8 Guide groove, 9 Hook, 10 Locking portion, 11 Second slider, 12 Coil spring, 13 Case, 14 Extension side, 15 Contraction side, 16 telescopic path, 17 dentition, 24 coupling structure, 26 holding piece, 27 fitting groove, 28 hook.

Claims

室内外を連通する風洞の室内側開口部を前記風洞の中心線方向に移動して開閉するシャッタと、
前記シャッタの背面部に連結される第１のスライダと、前記第１のスライダに組み合わされる第２のスライダとを有し、前記第２のスライダに対して前記第１のスライダがスライドすることで伸縮可能とされ、伸張することで前記シャッタを開方向に移動させ、収縮することで前記シャッタを閉方向に移動させる開閉装置と、
前記第１のスライダを前記開閉装置の伸張方向に付勢する付勢手段と、を備え、
前記第２のスライダには、平面視において前記中心線と平行に腕状に延びて弾性変形可能な係止部が形成されるとともに、前記係止部の先端にはフックが形成され、
前記第１のスライダには、前記フックが嵌まるとともに、前記シャッタの移動に伴って前記フックが通過する溝状の伸縮路が平面略四角形状に形成され、
前記伸縮路は、前記開閉装置を伸張させる際に前記フックが通過する伸張側の通路と、前記開閉装置を収縮させる際に前記フックが通過する収縮側の通路とを有して構成され、
前記収縮側の通路は、前記係止部の延長線上に設けられて前記シャッタの全開時に前記フックが嵌まる領域と、前記開閉装置が収縮するにしたがって前記フックを前記係止部の延長線上から離間させて前記係止部を弾性変形させる領域と、前記弾性変形させる領域の端部から前記係止部の延長線に近接する方向に延びるとともに前記係止部の延長線に対して略垂直方向に形成され、前記係止部の延長線上に設けられて前記シャッタの全閉時に前記フックが嵌まる領域につながる領域と、を有して構成され、
前記フックを離間させる領域には、前記フックに引っ掛かって前記開閉装置の伸張を規制する歯列部が形成されることを特徴とする通風装置。 A shutter that opens and closes by moving an indoor side opening of a wind tunnel communicating with the interior and the exterior in the direction of the center line of the wind tunnel;
A first slider coupled to the rear surface of the shutter; and a second slider combined with the first slider, and the first slider slides relative to the second slider. An opening and closing device that is extendable, moves the shutter in the opening direction by extending, and moves the shutter in the closing direction by contracting;
Biasing means for biasing the first slider in the extending direction of the opening and closing device,
The second slider has an engaging portion that extends in an arm shape in parallel with the center line in a plan view and can be elastically deformed, and a hook is formed at the tip of the engaging portion.
In the first slider, the hook is fitted, and a groove-like expansion path through which the hook passes as the shutter moves is formed in a substantially rectangular plane.
The expansion / contraction path is configured to include an extension side passage through which the hook passes when the opening / closing device is extended, and a contraction side passage through which the hook passes when the opening / closing device is contracted,
The contraction side of the passage path, and wherein the hook fits area when fully open the shutter provided on the extension of the locking portion, on an extension of the hook of the engaging portion in accordance with the closing device is retracted A region in which the locking portion is elastically deformed by being separated from the region, and an end portion of the elastically deforming region extends in a direction close to an extension line of the locking portion and is substantially perpendicular to the extension line of the locking portion. Formed in a direction, provided on an extension line of the locking portion and connected to a region where the hook fits when the shutter is fully closed,
In the region where the hooks are separated from each other, a tooth row portion is formed which is hooked on the hooks to restrict extension of the opening / closing device.