JPS589711Y2 - ventilation fan - Google Patents

Description

【考案の詳細な説明】 本考案は製作誤差や組立誤差等によって引き紐の操作力
に変動を生ずることがないように改良した換気扇に関す
る。[Detailed Description of the Invention] The present invention relates to an improved ventilation fan that prevents variations in the operating force of the drawstring due to manufacturing errors, assembly errors, etc.

以下本考案の一実施例を図面に基づいて説明する。An embodiment of the present invention will be described below based on the drawings.

１は換気扇本体で、これは室壁２に形成された開口部３
に木枠４を介して取付けられフード５を一体に有する基
体６と、この基体６の室内側開口部に延設されたフラン
ジ部６ａに着脱可能に取付けたカバー７とから成り、カ
バー７の下面及び前面には夫々通気孔８及び９が形成さ
れている。1 is the ventilation fan body, which is an opening 3 formed in the room wall 2.
It consists of a base body 6 which is attached via a wooden frame 4 and integrally has a hood 5, and a cover 7 which is removably attached to a flange portion 6a extending to the indoor opening of this base body 6. Ventilation holes 8 and 9 are formed on the lower and front surfaces, respectively.

１０は横流ファン１１のケーシングで、これは一対の端
板１２及び１３間にノーズ部材１４及び案内部材１５を
対向状態に取着すると共に、両端板１２及び１３に長さ
の異なる軸１６及び１７を取着して成り、軸１６には段
付筒状の巻胴１８を挿入してこれを端板１２にねじ１９
により固定している。Reference numeral 10 denotes a casing of the cross-flow fan 11, in which a nose member 14 and a guide member 15 are mounted oppositely between a pair of end plates 12 and 13, and shafts 16 and 17 having different lengths are attached to both end plates 12 and 13. A stepped cylindrical winding drum 18 is inserted into the shaft 16 and screwed into the end plate 12 by screws 19.
It is fixed by

そして、両軸１６及び１７を基体６の左右両側に形成さ
れた軸受部２０．２０のＵ字状凹部２０ａ、２０ａに嵌
合して押え板２１．２１で該凹部２０ ａ 、２０ ａ
の開放部分を閉鎖することにより、ケーシング１０を換
気扇本体１内に回動可能に配設している。Then, the shafts 16 and 17 are fitted into the U-shaped recesses 20a, 20a of the bearing portion 20.20 formed on both left and right sides of the base body 6, and the recesses 20a, 20a are pressed by the holding plate 21.21.
By closing the open portion of the casing 10, the casing 10 is rotatably disposed within the ventilation fan main body 1.

２２はケーシング１０の端板１２内側に固定したモータ
、２３はケーシング１０内に配置され一端をモータ２２
に直結し他端を端板１３に回転自在に枢支された横流翼
車である。22 is a motor fixed inside the end plate 12 of the casing 10; 23 is arranged inside the casing 10 and one end is connected to the motor 22;
This is a transverse flow impeller directly connected to the end plate 13 and rotatably supported at the other end by the end plate 13.

前記巻胴１８のフランジたる大径部１８ Ｈの端面には
ストッパとして***部２４が形成されており、この***
部２４に形成された二個の小孔２５．２５から二本の引
き紐２６及び２７の一端部を径大部１８ ａ内に挿入し
て互に結び合うことにより、両引き紐２６及び２７を巻
胴１８に連結している。A raised part 24 is formed as a stopper on the end face of the large diameter part 18H which is a flange of the winding drum 18, and two drawstrings 26 are inserted through two small holes 25 and 25 formed in this raised part 24. Both drawstrings 26 and 27 are connected to the winding drum 18 by inserting the ends of the drawstrings 26 and 27 into the large diameter portion 18a and tying them together.

２８は基体６のフランジ部６ａに取付けられ両引き紐２
６及び２７をカバー７に形成された導出孔２９に案内す
るためのガイ、ド部材で、これは略コ字状をなすと共に
、両側に長孔３０を有する取付脚２８ ａを形成して成
る。Reference numeral 28 is attached to the flange portion 6a of the base body 6 and has both drawstrings 2
6 and 27 to the lead-out hole 29 formed in the cover 7. This guide member is approximately U-shaped and is formed with mounting legs 28a having elongated holes 30 on both sides. .

そして、取付脚２８ ａの長孔３０にねじ３１を挿通し
て、これを基体６のフランジ部６ａに螺着することによ
り、ガイド部材２８を基体６に長孔３０の長さ範囲内で
ケーシング１０の軸方向に移動させ得るように取付けて
いる。Then, by inserting the screw 31 into the elongated hole 30 of the mounting leg 28a and screwing it onto the flange portion 6a of the base body 6, the guide member 28 is attached to the base body 6 within the length range of the elongated hole 30. It is mounted so that it can be moved in the axial direction of 10.

３２はガイド部材２８の一側部に巻胴１８に向けて延設
した係止片で、これは巻胴１８の***部２４の両端面２
４ ａ及び２４ ｂに当接されて巻胴１８従ってケーシ
ング１０の回動を規制するものである。Reference numeral 32 denotes a locking piece extending toward the winding drum 18 on one side of the guide member 28, and this locking piece is attached to both end surfaces 2 of the raised portion 24 of the winding drum 18.
4a and 24b to restrict the rotation of the winding drum 18 and therefore the casing 10.

而して、ガイド部材２８の取付けに際しては、ガイド部
材２８をケーシング１０の軸方向に移動させて位置決め
を行うものであるが、その位置決めは係止片３２を巻胴
１８の***部２４に対応させること即ち***部２４の回
動軌跡内に位置させることによって行うものである。When installing the guide member 28, the guide member 28 is moved in the axial direction of the casing 10 for positioning. That is, by positioning it within the rotation locus of the raised portion 24.

この場合に、***部２４は径大部１８ ａの端面に形成
されているので、実際に***部２４を係止片３２に当接
させる操作を行うまでもなく、係止片３２を径大部１８
ａの端面に近接させることによって、換言すれば径大部
１８ Ｈの端面を基準にしてガイド部材２８の位置決め
を簡単に行うことができる。In this case, since the raised portion 24 is formed on the end surface of the large diameter portion 18a, there is no need to actually bring the raised portion 24 into contact with the locking piece 32. Part 18
In other words, by bringing the guide member 28 close to the end face of the large diameter portion 18H, the guide member 28 can be easily positioned with reference to the end face of the large diameter portion 18H.

そして、上記のようにガイド部材２８の位置決めを行っ
た後、ねじ３１を締付けてガイド部材２８を固定し、然
る後に両引き紐２６及び２７をガイド部材２８内に挿通
させて、カバー７の導出孔２９から下方に垂下させる。After positioning the guide member 28 as described above, the screw 31 is tightened to fix the guide member 28, and then both the drawstrings 26 and 27 are inserted into the guide member 28 to secure the cover 7. It is made to hang downward from the outlet hole 29.

次に上記構成の作用を説明する。Next, the operation of the above configuration will be explained.

ケーシング１０が第１図に二点鎖線で示す状態（循環運
転位置）にあるときには、***部２４の一方の端面２４
ａは係止片３２に当接し、一方の引き紐２７は巻胴１
８に巻き取られ、他方の引き紐２６は巻胴１８から引き
出された状態にある。When the casing 10 is in the state shown by the two-dot chain line in FIG.
a is in contact with the locking piece 32, and one of the drawstrings 27 is connected to the winding drum 1.
8, and the other drawstring 26 is in a state of being pulled out from the winding drum 18.

この状態から、一方の引き紐２７を下方に引張ると、ケ
ーシング１０は第１図に矢印Ａで示す正転方向に回動し
て実線で示す状態（排気運転位置）を経て鎖線で示す位
置（吸気運転位置）に至り、ここで***部２４の他方の
端面２４ ｂが係止片３２に当接して係止され、ケーシ
ング１０のそれ以上の正転が阻止される。From this state, when one of the drawstrings 27 is pulled downward, the casing 10 rotates in the forward rotation direction shown by arrow A in FIG. At this point, the other end surface 24b of the raised portion 24 comes into contact with the locking piece 32 and is locked, thereby preventing further normal rotation of the casing 10.

そして、上記のようなケーシング１０従って巻胴１８の
回動により一方の引き紐２７は引き出され、他方の引き
紐２６は巻き取られる。Then, by the rotation of the casing 10 and thus the winding drum 18 as described above, one of the drawstrings 27 is pulled out and the other drawstring 26 is wound up.

また、逆にケーシング１０が吸気運転位置にある状態か
ら他方の引き紐２６を下方に引張ると、ケーシング１０
は逆転方向（反矢印Ａ方向）に回動して排気運転位置を
経て循環運転位置に至り、ここで***部２４の一方の端
面２４ ａが係止片３２に当接して係止され、ケーシン
グ１０とそれ以上の逆転が防止される。Conversely, when the other drawstring 26 is pulled downward from the state where the casing 10 is in the intake operation position, the casing 10
rotates in the reverse direction (direction opposite to arrow A), passes through the exhaust operation position, and reaches the circulation operation position, where one end surface 24a of the raised portion 24 comes into contact with the locking piece 32 and is locked, and the casing Reversals of 10 and more are prevented.

而して、ケーシング１０を循環運転位置に回動させて、
モータ２２により横流翼車２３を回転駆動すれば、第１
図に矢印Ｂで示すように室内の空気を通気孔９から吸引
して通気孔８から送風する循環運転が行われ、またケー
シング１０を排気運転位置に回動させれば、矢印Ｃで示
すように室内の空気を通気孔８から吸引して屋外に送風
する排気運転が行われ、更にケーシング１０を吸気運転
位置に回動させれば、矢印りで示すように屋外の空気を
吸引して通気孔９から室内に送風する吸気運転が行われ
る。Then, the casing 10 is rotated to the circulating operation position,
If the crossflow impeller 23 is rotationally driven by the motor 22, the first
As shown by the arrow B in the figure, a circulation operation is performed in which indoor air is sucked through the vent 9 and blown from the vent 8, and when the casing 10 is rotated to the exhaust operation position, as shown by the arrow C. Then, an exhaust operation is performed in which indoor air is sucked through the ventilation hole 8 and blown outdoors, and when the casing 10 is further rotated to the intake operation position, outdoor air is sucked in and vented as shown by the arrow. An intake operation is performed in which air is blown into the room from the air holes 9.

尚、ケーシング１０を正逆方向に回動させる理由は、換
気扇本体１側に設けた図示しないスイッチとモータ２２
とを接続するリード線（図示せず）のねじれを防止する
ためであり、またケーシング１０は図示しない節動機構
によって各運転位置に保持されるようになっている。The reason why the casing 10 is rotated in the forward and reverse directions is because of a switch (not shown) provided on the side of the ventilation fan body 1 and a motor 22.
This is to prevent the lead wires (not shown) connecting the casing 10 from being twisted, and the casing 10 is held at each operating position by an articulated mechanism (not shown).

上記のように構成した本実施例によれば、ガイド部材２
８をケーシング１０の軸方向に移動させ得るように設け
、その位置決めを巻胴１８の***部２４を基準にして行
うようにしたので、寸法誤差や組立誤差等によって巻胴
１８の位置がケーシング１０の軸方向にずれを生じたと
しても、ガイド部材２８と巻胴１８とは常に一定の位置
関係になる。According to this embodiment configured as described above, the guide member 2
8 is provided so that it can be moved in the axial direction of the casing 10, and its positioning is performed based on the raised portion 24 of the winding drum 18. Therefore, due to dimensional errors, assembly errors, etc. Even if a deviation occurs in the axial direction, the guide member 28 and the winding drum 18 always maintain a constant positional relationship.

ところが、従来ではガイド部材には本実施例のような取
付位置調節機能はなく、定位置に固定されていたため、
寸法誤差や組立誤差等によって巻胴がケーシングの軸方
向にずれると、引き紐がガイド部材の左右両側の端縁に
当たるようになって、その摺動抵抗により引き紐を引張
るのに大きな力を要したり、或は引き紐が早期にすり切
れてしまうという問題を生じていた。However, in the past, the guide member did not have a mounting position adjustment function like the one in this embodiment, and was fixed in a fixed position.
If the winding drum shifts in the axial direction of the casing due to dimensional errors or assembly errors, the drawstring will come into contact with the edges on both the left and right sides of the guide member, and the sliding resistance will require a large force to pull the drawstring. Otherwise, there was a problem that the drawstring would wear out prematurely.

然しなから、本実施例によれば、上記したように巻胴１
８とガイド部材２８とは常に一定の位置関係にあってケ
ーシング１０の軸方向にずれを生ずることはないので、
引き紐２６．２７がガイド部材２８の端縁に当たるよう
なことはなく、引き紐２６．２７を常に一定の小さな力
で操作できるようになると共に、引き紐２６．２７のす
り切れを有効に防止できる。However, according to this embodiment, as described above, the winding drum 1
8 and the guide member 28 are always in a constant positional relationship and do not shift in the axial direction of the casing 10.
The drawstrings 26, 27 do not touch the edges of the guide member 28, and the drawstrings 26, 27 can always be operated with a constant small force, and the drawstrings 26, 27 are effectively prevented from fraying. can.

また、従来ではケーシングの一方の端板にストッパを設
けると共に、一方の押え板に係止片を設けてケーシング
の回動範囲を規制するようにしていたため、ケーシング
の両端板の共通化及び両押え板の共通化が阻害されコス
ト上昇の原因の一つになっていた。In addition, in the past, a stopper was provided on one end plate of the casing, and a locking piece was provided on one holding plate to restrict the rotation range of the casing. This hindered the standardization of boards and was one of the causes of rising costs.

しかも従来では、製作誤差９組立誤差等によりストッパ
と係止片との当接度合が小さくなることがあり、係止片
からストッパが外れ易くなるという機能上の重大な欠陥
を生ずる場合があった。Moreover, in the conventional method, the degree of contact between the stopper and the locking piece may be reduced due to manufacturing errors, assembly errors, etc., which may cause a serious functional defect in that the stopper is likely to come off from the locking piece. .

然るに本実施例によれば、ストッパたる***部２４を巻
胴１８に設け、係止片３２をガイド部材２８に設けたの
で、ケーシング１０の両端板１２及び１３、両押え板２
１の共通化を図ることができると共に、ガイド部材２８
の位置調節機能により、係止片３２を常に***部２４を
確実に係止し得る位置に設定でき、その機能を常に確実
に発揮させ得るようになる。However, according to this embodiment, since the protrusion 24 serving as a stopper is provided on the winding drum 18 and the locking piece 32 is provided on the guide member 28, both end plates 12 and 13 of the casing 10 and both presser plates 2
1 can be made common, and the guide member 28
With the position adjustment function, the locking piece 32 can always be set at a position where it can reliably lock the protrusion 24, and its function can always be reliably exerted.

本考案は以上説明したように、ガイド部材をケーシング
の軸方向に移動させ得るように設け、このガイド部材に
係止部を形成すると共に、巻胴に係止部に係止されてケ
ーシングの回動範囲を規制するストッパを設け、係止部
をスＩ・ツバに対応させることによってガイド部材の位
置決めを行う構成としたことにより、ガイド部材と巻胴
とは常に一定の位置関係に定まるので、引き紐がガイド
部材の端縁に当たってその摺動抵抗により引き紐の操作
に大きな力を要したり、或は引き紐が早期にすり切れて
しまったりするという不都合を防止でき、引き紐の操作
の円滑化及びその長寿命化を図ることができ、また部品
の共通化を促進してコストの低減化に寄与し得ると共に
、ストッパと係止部とによるケーシングの回動範囲規制
機能を常に確実に発揮させ得るという優れた効果が得ら
れる。As explained above, in the present invention, a guide member is provided so as to be movable in the axial direction of the casing, a locking portion is formed on the guide member, and the casing is rotated by being locked by the locking portion on the winding drum. By providing a stopper that restricts the range of movement and positioning the guide member by making the locking portion correspond to the collar and collar, the guide member and the winding drum are always in a constant positional relationship. This prevents the inconvenience of the drawstring hitting the edge of the guide member and requiring a large amount of force to operate the drawstring due to the sliding resistance, or causing the drawstring to wear out prematurely. It is possible to improve the smoothness and extend the life of the casing, promote the commonality of parts, contribute to cost reduction, and always ensure the function of regulating the rotation range of the casing by the stopper and the locking part. Excellent effects can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図は縦断面図、第
２図は分解斜視図、第３図は要部の拡大斜視図で゛ある
。 図中、１は換気扇本体、８及び９は通気孔、１０はケー
シング、１１は横流ファン、１４はノーズ部材、１５は
案内部材、１８は巻胴、２２はモータ、２３は横流翼車
、２４は***部（ストッパ）、２６及び２７は引き紐、
２８はガイド部材、２９は導出口、３２は係止片（係止
部）である。The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view, FIG. 2 is an exploded perspective view, and FIG. 3 is an enlarged perspective view of the main parts. In the figure, 1 is the ventilation fan body, 8 and 9 are ventilation holes, 10 is a casing, 11 is a crossflow fan, 14 is a nose member, 15 is a guide member, 18 is a winding drum, 22 is a motor, 23 is a crossflow impeller, 24 is a raised part (stopper), 26 and 27 are drawstrings,
28 is a guide member, 29 is an outlet, and 32 is a locking piece (locking portion).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 換気扇本体内に横流のファンのケーシングを回動可能に
設けると共に、このケーシングの軸方向一端部に巻胴を
取付け、この巻胴に連結した引き紐を操作することに、
より前記ケーシングを回動させて前記横流ファンの送風
方向を変換するようにしたものにおいて、前記換気扇本
体に前記ケーシングの軸方向に移動させ得るように設け
られ前記引き紐を換気扇本体に形成された導出孔に案内
するガイド部材と、このガイド部材に形成した係止部と
、前記巻胴に設けられ前記係止部に係止されて前記ケー
シングの回動範囲を規制するストッパとを具備し、前記
係止部を前記ストッパに対応させることによって、前記
ガイド部材の位置決めを行うようにしたことを特徴とす
る換気扇。A cross-flow fan casing is rotatably provided in the ventilation fan body, a winding drum is attached to one end in the axial direction of the casing, and a drawstring connected to the winding drum is operated.
In the case where the casing is rotated to change the air blowing direction of the cross-flow fan, the ventilation fan body is provided with the drawstring so as to be movable in the axial direction of the casing, and the drawstring is formed on the ventilation fan body. comprising a guide member that guides the guide member to the outlet hole, a locking portion formed on the guide member, and a stopper provided on the winding drum and locked to the locking portion to restrict the rotation range of the casing; A ventilation fan characterized in that the guide member is positioned by making the locking portion correspond to the stopper.