JP3044856U - Air volume adjustment damper for blower - Google Patents
Air volume adjustment damper for blowerInfo
- Publication number
- JP3044856U JP3044856U JP1997005558U JP555897U JP3044856U JP 3044856 U JP3044856 U JP 3044856U JP 1997005558 U JP1997005558 U JP 1997005558U JP 555897 U JP555897 U JP 555897U JP 3044856 U JP3044856 U JP 3044856U
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- Prior art keywords
- opening
- plate
- ventilation opening
- blower
- plate members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
(57)【要約】
【課題】 送風機用風量調整ダンパの耐久性及び風量調
整機能を高める。
【解決手段】 送風機１の吸込口９に対向させる通気開
口７の開口縁を、その通気開口７の中心軸芯に対し直交
する面方向姿勢の複数の板材５，６の端縁部分５ａ，６
ａの連なりにより形成し、通気開口７の開口縁の全てを
通気開口７の拡大方向と縮小方向とに択一的に変位させ
るように、板材５，６を重なり合い部分のある状態で板
面方向へ移動させる操作機構Ｈを設けてある。また、好
ましくは、板面方向に沿う１直線方向で離間側と接近側
とに択一的に、かつ、重なり合い部分のある状態で操作
機構Ｈにより相互移動させる２枚の板材５，６を設け、
通気開口７の開口縁を形成するこれら２枚の板材５，６
の端縁部分５ａ，６ａを、１直線方向で互いに向かい合
う凹の半円弧状に形成してある。
(57) [Summary] [PROBLEMS] To improve the durability and air volume adjustment function of an air volume adjustment damper for a blower. SOLUTION: An opening edge of a ventilation opening 7 facing a suction opening 9 of a blower 1 is made to have edge portions 5a, 6 of a plurality of plate members 5, 6 in a plane direction orthogonal to a center axis of the ventilation opening 7.
a, and the plate members 5, 6 are overlapped with each other so as to selectively displace the entire opening edge of the ventilation opening 7 in the enlargement direction and the reduction direction of the ventilation opening 7. There is provided an operation mechanism H for moving to. Further, preferably, two plate members 5, 6 which are mutually moved by the operation mechanism H in a linear direction along the plate surface direction, alternately on the separated side and the approach side, and in a state where there is an overlapping portion are provided. ,
These two plate members 5 and 6 forming the opening edge of the ventilation opening 7
Are formed in a concave semi-circular shape facing each other in one straight line direction.
Description
【０００１】[0001]
本考案は送風機用の風量調整ダンパに関する。 The present invention relates to an air volume adjusting damper for a blower.
【０００２】[0002]
従来、送風機用の風量調整ダンパとしては、風路形成ケーシングの内部に設け た１枚ないし複数枚の回転羽根の姿勢変更により風量調整を行う形式で、送風機 の吐出口部や吸込口部に取り付けるもの……（イ）、あるいは、送風機の内部で 基端を送風機ケーシングに枢支し、かつ、先端を送風機の吐出口に位置させた内 装湾曲板の姿勢変更により風量調整を行う形式（いわゆるスクロールダンパ）… …（ロ）、あるいはまた、送風機の吸込口で吸込口半径方向の回転軸芯を有する 複数の回転羽根を放射状に配置して、それら回転羽根の姿勢変更により風量調整 を行う形式（いわゆるインレットベーン）……（ハ）がある。 Conventionally, as an air flow adjusting damper for a blower, the air flow is adjusted by changing the attitude of one or more rotating blades provided inside the air path forming casing, and attached to the discharge port or suction port of the blower. (A) Alternatively, the air volume is adjusted by changing the attitude of an internal curved plate whose base end is pivotally supported inside the blower casing and whose tip is located at the discharge port of the blower inside the blower (so-called (Scroll damper)…… (B) Or, a type in which a plurality of rotating blades having a rotating shaft center in the suction port radial direction are arranged radially at the suction port of the blower, and the air volume is adjusted by changing the attitude of the rotating blades. (So-called inlet vanes) ... (c).
【０００３】 また、通風方向に対し直交する姿勢の一枚の板材をその板面方向に摺動変位さ せて風量調整を行う形式で、送風機の吐出口部や吸込口部に取り付けるもの（い わゆるスライドダンパ）……（ニ）もある。[0003] Furthermore, one plate material that is orthogonal to the ventilation direction is slid and displaced in the plate surface direction to adjust the air volume, and is attached to a discharge port or a suction port of a blower. (Slide slide damper) ... There is also (d).
【０００４】[0004]
しかし、（イ）〜（ハ）の形式では、回転羽根や内装湾曲板の全体が風路内に 位置し、これら回転羽根や内装湾曲板を回転軸により風路壁相当部に支持する構 造である為、回転羽根や内装湾曲板が受ける風圧による応力が回転軸に集中し、 この為、高強度化が難しく高圧送風機を対象とする場合の耐久性確保が難しい問 題があった。 However, in the forms (a) to (c), the entire rotating blades and the interior curved plate are located in the air passage, and the rotating blades and the interior curved plate are supported on the air path wall equivalent portion by the rotating shaft. Therefore, the stress due to the wind pressure applied to the rotating blades and the interior curved plate concentrates on the rotating shaft, which makes it difficult to increase the strength and secure the durability when targeting a high-pressure blower.
【０００５】 また、回転羽根や内装湾曲板の全体が風路内に位置する為、高圧送風機を対象 とする使用で風圧により破損した場合、これら回転羽根や内装湾曲板が飛散して 他物を損傷する二次トラブルを招く虞もあった。[0005] Further, since the entire rotating blades and the interior curved plate are located in the air path, when the high-pressure blower is damaged by wind pressure, the rotating blades and the interior curved plate are scattered and other objects are scattered. There was also a risk of causing secondary troubles to be damaged.
【０００６】 一方、（ニ）の形式では、板材を閉じ側へ操作したとき、その閉じ操作で開口 面積が縮小する通気開口が風路の中心から偏った位置に位置して偏流が生じ、こ の為、精度面及び安定性の面で風量調整機能が低い問題があった。[0006] On the other hand, in the type (d), when the plate material is operated to the closing side, the air flow opening whose opening area is reduced by the closing operation is located at a position deviated from the center of the air path, and a drift occurs. Therefore, there is a problem that the air volume adjusting function is low in terms of accuracy and stability.
【０００７】 以上の実情に対し、本考案の主たる課題は、合理的な構造より上記の各問題を 効果的に解消する点にある。[0007] In view of the above situation, the main problem of the present invention is to solve each of the above problems effectively with a reasonable structure.
【０００８】[0008]
〔１〕請求項１記載の考案では、板材を重なり合い部分のある状態で操作機構 により板面方向へ移動させることで、これら板材の端縁部分どうしの連なりによ り形成する通気開口の開口縁の全てを、通気開口の拡大方向と縮小方向とに択一 的に変位させ、これにより、送風機の吸込口に対向させる通気開口の開口面積を 変更して、その送風機の送風量を調整する。 [1] In the invention according to claim 1, the plate material is moved in the plate surface direction by the operating mechanism in a state where there is an overlapping portion, so that the opening edge of the ventilation opening formed by the continuation of the edge portions of these plate materials. Are selectively displaced in the direction of expansion and contraction of the ventilation opening, thereby changing the opening area of the ventilation opening facing the suction opening of the blower, and adjusting the amount of air blown by the blower.
【０００９】 そして、この構造によれば、通気開口の中心軸芯に対し直交する面方向姿勢で 板面方向に移動させる各板材が、風路壁相当部の内外（すなわち、風路内と風路 外）にわたる構造になることから、板材そのものを下流側の風路壁相当部で受け 止め支持でき、これにより、先述の（イ）〜（ハ）の従来形式に比べ強度を効果 的に高めることができて、高圧送風機を対象とする使用においても高い耐久性を 確保でき、また、風圧による破損時に回転羽根や内装湾曲板が飛散して二次トラ ブルを招くといったことも防止できる。According to this structure, each plate member to be moved in the plate surface direction in a plane direction orthogonal to the center axis of the ventilation opening is placed inside and outside the air path wall equivalent portion (that is, inside and outside the air path). The structure extends over the outside of the road, so that the plate itself can be received and supported by the downstream air path wall equivalent portion, thereby effectively increasing the strength compared to the conventional types (a) to (c) described above. Therefore, high durability can be ensured even when used for a high-pressure blower, and it is also possible to prevent the rotating blades and the interior curved plate from scattering at the time of breakage due to wind pressure and causing a secondary trouble.
【００１０】 しかも、送風機の吸込口では中心軸芯周りでの旋回流の状態で気体が吸入され るのに対し、上記の如く、送風機の吸込口に対向させる通気開口の開口面積を変 更するのに、その開口縁の全てを通気開口の拡大方向と縮小方向とに択一的に変 位させるから、すなわち、各調整段階における通気開口の形状を極力同芯の相似 形状に保つから、開口面積の変更にかかわらず吸入気体の旋回を偏りの無い状態 で安定的に維持でき、これにより、精度面及び安定性の面で高い風量調整機能を 得ることができる。In addition, while the gas is sucked into the suction port of the blower in a state of swirling around the center axis, the opening area of the ventilation opening facing the suction port of the blower is changed as described above. However, since all of the opening edges are selectively displaced in the direction of expansion and contraction of the ventilation opening, that is, the shape of the ventilation opening in each adjustment step is kept as similar as possible to the concentric shape. Irrespective of the area change, the swirling of the intake gas can be stably maintained without any bias, and thereby a high air volume adjustment function can be obtained in terms of accuracy and stability.
【００１１】 〔２〕請求項２記載の考案では、通気開口の開口縁を形成する板材の端縁部分 を凹の弧状に形成するから、複数の板材の端縁部分の連なりにより形成する通気 開口を可及的に円形に近づけることができ、これにより、前記吸入気体の旋回を 円滑かつ安定的なものにして、一層高い風量調整機能を得ることができる。[2] In the invention according to claim 2, since the edge portion of the plate material forming the opening edge of the ventilation opening is formed in a concave arc shape, the ventilation opening formed by the connection of the edge portions of the plurality of plate materials. Can be made as close as possible to a circular shape, whereby the swirling of the suction gas can be made smooth and stable, and a higher air volume adjusting function can be obtained.
【００１２】 〔３〕請求項３記載の考案では、互いの端縁部分を向かい合う凹の半円弧状に 形成した２枚の板材を、板面方向に沿う１直線方向で離間側と接近側とに択一的 に、かつ、重なり合い部分のある状態で操作機構により相互移動させることで、 両半円弧形状の重なりにより形成される略楕円状（全開では円形状も可能）の通 気開口を可及的に同芯の相似形状に保った状態で、その開口面積を変化させ、こ れにより、送風機の風量を調整する。[3] In the invention according to claim 3, two plate members formed in a concave semi-circular shape whose edge portions face each other are separated from each other in one linear direction along the plate surface direction. Alternatively, by mutually moving with the operating mechanism in the state where there is an overlapping part, a substantially elliptical (or a circular shape is also possible when fully open) air opening formed by the overlapping of the two semicircular arc shapes is possible. While maintaining the concentric similar shape as much as possible, the opening area is changed, thereby adjusting the air volume of the blower.
【００１３】 そして、この構造によれば、板材の枚数が２枚だけであるから、また、これら ２枚の板材を複雑な移動経路を採らず板面方向に沿う１直線方向で移動させるだ けであるから、構造が簡単で製作を容易にすることができ、また、安価なものに することができる。According to this structure, since the number of plate members is only two, these two plate members need only be moved in one straight line along the plate surface direction without taking a complicated movement path. Therefore, the structure is simple, the production can be facilitated, and the cost can be reduced.
【００１４】 〔４〕請求項４記載の考案では、板材を３枚以上にして、通気開口を３角形状 又はそれ以上の多角形状にしてあるから、これら板材を操作機構により板面方向 に移動させて通気開口の開口面積を変更することにおいて、通気開口を同芯の相 似形状に極力正確に保つことが容易になり、これにより、前記吸入気体の旋回を 一層安定的に維持できて、風量調整機能の向上を促進できる。[4] In the invention according to claim 4, since the number of plate members is three or more and the ventilation openings are triangular or more polygonal, these plate members are moved in the plate surface direction by the operating mechanism. By changing the opening area of the ventilation opening, it is easy to keep the ventilation opening in a concentric similar shape as accurately as possible, whereby the swirling of the suction gas can be maintained more stably. The improvement of the air volume adjustment function can be promoted.
【００１５】 〔５〕請求項５記載の考案では、操作機構が複数の板材を連動移動させるもの であるから、複数の板材を各別に移動操作して、同芯の相似形状を極力保ちなが ら通気開口の開口面積を変更するのに比べ、操作を容易にすることができ、また 、通気開口を極力同芯の相似形状に保つことを確実にして、高い風量調整機能を 確実に得ることができる。[5] In the invention according to claim 5, since the operating mechanism moves the plurality of plate members in an interlocking manner, the plurality of plate members are individually moved and operated to keep the concentric similar shape as much as possible. The operation can be made easier compared to changing the opening area of the ventilation opening, and the ventilation opening can be kept as similar as possible to the concentric shape as much as possible, so that a high air volume adjustment function can be reliably obtained. Can be.
【００１６】[0016]
図１において、１は遠心式送風機であり、この送風機１の吸込口部にはスライ ド式の風量調整ダンパ２を取り付けてある。 In FIG. 1, reference numeral 1 denotes a centrifugal blower, and a slide-type air flow adjusting damper 2 is attached to a suction port of the blower 1.
【００１７】 この風量調整ダンパ２は、同図１〜図７に示すように、表側の矩形枠３と裏側 （送風機１の吸込口側）の矩形枠４をケーシングＣとして、これら矩形枠３，４ どうしの間に、弁体としての第１及び第２の２枚の板材５，６を挟み込んだ構造 にしてあり、これら板材５，６の移動操作により、ケーシングＣ内の通気開口７ の開口面積を変更して送風機１の送風量を調整する。As shown in FIGS. 1 to 7, the air volume adjusting damper 2 includes a rectangular frame 3 on the front side and a rectangular frame 4 on the rear side (the suction port side of the blower 1) as a casing C, and these rectangular frames 3, 4 The first and second two plate members 5 and 6 as a valve body are sandwiched between each other, and the opening of the ventilation opening 7 in the casing C is performed by moving these plate members 5 and 6. The area of the air blower 1 is adjusted by changing the area.
【００１８】 裏側矩形枠４の裏面部には裏板８をフランジ構造でボルト連結し、この裏板８ には、送風機１の吸込口９と同径でその吸込口９に対し同芯状に対向させる裏側 円形開口１０を形成するとともに、送風機１の吸込口周りの円形フランジ１１と ボルト連結して裏側矩形枠４を送風機１に連結固定する送風機連結用の裏側円形 フランジ１２を設けてある。A back plate 8 is bolted to the back surface of the back side rectangular frame 4 by a flange structure. The back plate 8 has the same diameter as the suction port 9 of the blower 1 and is concentric with the suction port 9. A back side circular opening 12 is formed to face the back side circular opening 10, and is connected to a round flange 11 around the suction opening of the blower 1 by bolts to connect and fix the back side rectangular frame 4 to the blower 1.
【００１９】 一方、表側矩形枠３の表面部には表板１３をフランジ構造でボルト連結し、こ の表板１３には、裏側円形開口１０と同径でその裏側円形開口１０に対し同芯状 に対向させる空気取入口としての表側円形開口１４を形成するとともに、防護用 の金網１５を張設した円形フランジ１６をボルト連結して、この防護用金網１５ を表側円形開口１４に対し張設する形態に取り付ける表側円形フランジ１７を設 けてある。On the other hand, a front plate 13 is bolted to the surface of the front side rectangular frame 3 by a flange structure, and the front plate 13 has the same diameter as the back side circular opening 10 and is concentric with the back side circular opening 10. A front side circular opening 14 is formed as an air inlet which is opposed to the front side, and a circular flange 16 on which a protective wire mesh 15 is stretched is connected by bolts, and the protective wire mesh 15 is stretched with respect to the front circular opening 14. A front-side circular flange 17 is provided to be mounted in the form shown in FIG.
【００２０】 ２枚の板材５，６は、裏側円形開口１０及び表側円形開口１４の中心軸芯（換 言すれば、送風機１の吸込口９の中心軸芯）と直交する面方向姿勢で、かつ、風 路壁としての表側及び裏側矩形枠３，４の内外にわたらせた状態で、これら表側 矩形枠３と裏側矩形枠４との間に介装し、そして、平行姿勢の上側案内枠１８と 下側案内枠１９とによる案内で板面方向に沿う一直線方向（すなわち、上側及び 下側案内枠１８，１９の長手方向）に移動自在にしてある。The two plate members 5 and 6 are arranged in a plane direction orthogonal to the central axis of the back circular opening 10 and the front circular opening 14 (in other words, the central axis of the suction port 9 of the blower 1). In addition, it is interposed between the front side rectangular frame 3 and the rear side rectangular frame 4 in a state where it extends over the inside and outside of the front side and rear side rectangular frames 3 and 4 as the wind path wall. The lower guide frame 19 and the lower guide frame 19 move freely in a straight line along the plate surface direction (that is, in the longitudinal direction of the upper and lower guide frames 18 and 19).
【００２１】 図７に示すように、上側案内枠１８及び下側案内枠１９の夫々について、第１ 板材５の側で表側及び裏側矩形枠３，４よりも突出する部分１８ａ，１９ａでは 、第１及び第２のアングル材Ｌ１，Ｌ２とそれらの間に介装した第１スペーサＳ １とにより、両アングル材Ｌ１，Ｌ２の間に第１板材用の案内溝Ｍ１を形成し、 同様に、上側案内枠１８及び下側案内枠１９の夫々について、第２板材６の側で 表側及び裏側矩形枠３，４よりも突出する部分１８ｂ，１９ｂでは、第３及び第 ４のアングル材Ｌ３，Ｌ４とそれらの間に介装した第２スペーサＳ２とにより、 両アングル材Ｌ３，Ｌ４の間に第２板材用の案内溝Ｍ２を形成してある。As shown in FIG. 7, in each of the upper guide frame 18 and the lower guide frame 19, the portions 18 a and 19 a protruding from the front and rear rectangular frames 3 and 4 on the side of the first plate member 5 have the following shapes. The first and second angle members L1 and L2 and the first spacer S1 interposed therebetween form a guide groove M1 for the first plate member between the two angle members L1 and L2. In each of the upper guide frame 18 and the lower guide frame 19, at the portions 18b and 19b protruding from the front and rear rectangular frames 3 and 4 on the second plate member 6 side, the third and fourth angle members L3 and L4 are provided. A guide groove M2 for the second plate material is formed between the angle members L3 and L4 by the and the second spacer S2 interposed therebetween.
【００２２】 また、上側案内枠１８及び下側案内枠１９の夫々について、表側及び裏側矩形 枠３，４の幅内に位置する部分１８ｃ，１９ｃでは、上記の第１アングル材Ｌ１ と第４アングルＬ４との間に、上記の第１及び第２スペーサＳ１，Ｓ２とともに 仕切用帯材Ｓ３を介装して、各案内枠１８，１９の第１板材側突出部分１８ａ， １９ａから連続する第１板材用案内溝Ｍ１と、各案内枠１８，１９の第２板材側 突出部分１８ｂ，１９ｂから連続する第２板材用案内溝Ｍ２とを並列に形成して ある。In each of the upper guide frame 18 and the lower guide frame 19, at the portions 18 c and 19 c located within the width of the front and back rectangular frames 3 and 4, the first angle member L 1 and the fourth angle member The first and second spacers S1 and S2 are interposed between the first and second spacers S1 and S2 and the first and second spacers S1 and S2. The plate material guide groove M1 and the second plate material guide groove M2 that is continuous from the second plate material side protruding portions 18b, 19b of the guide frames 18, 19 are formed in parallel.
【００２３】 つまり、上側及び下側案内枠１８，１９の第１板材用案内溝Ｍ１に第１板材５ の上下縁を係入させた状態で、上側及び下側案内枠１８，１９の第１板材側突出 部分１８ａ，１９ａから表側及び裏側矩形枠３，４の幅内部分１８ｃ，１９ｃに わたる第１板材５の移動を案内し、かつ、上側及び下側案内枠１８，１９の第２ 板材用案内溝Ｍ２に第２板材６の上下縁を係入させた状態で、上側及び下側案内 枠１８，１９の第２板材側突出部分１８ｂ，１９ｂから表側及び裏側矩形枠３， ４の幅内部分１８ｃ，１９ｃにわたる第２板材６の移動を案内する構造にしてあ る。In other words, with the upper and lower edges of the first plate member 5 engaged with the first plate member guide grooves M1 of the upper and lower guide frames 18, 19, the first and second guide frames of the upper and lower guide frames 18, 19 are engaged. It guides the movement of the first plate member 5 from the plate member side protruding portions 18a, 19a to the inner portions 18c, 19c of the front and back rectangular frames 3, 4, and furthermore, the second plate members of the upper and lower guide frames 18, 19. With the upper and lower edges of the second plate 6 engaged in the guide grooves M2, the width of the front and back rectangular frames 3, 4 from the second plate-side protruding portions 18b, 19b of the upper and lower guide frames 18, 19 is set. The structure guides the movement of the second plate 6 over the inner portions 18c and 19c.
【００２４】 なお、上側案内枠１８及び下側案内枠１９は、表側矩形枠３と下側矩形枠４と の上壁部どうし及び下壁部どうしを連結して、それら上壁部どうしの間及び下壁 部どうしの間を閉塞するケーシング部材も兼ねるものである。また、２０は表側 及び裏側矩形枠３，４の側壁部において、板材５，６の移動に対しそれら板材５ ，６の板面に摺接させる状態で、表側及び裏側矩形枠３，４の夫々と板材５，６ との間をシールする弾性シール材である。The upper guide frame 18 and the lower guide frame 19 connect the upper and lower walls of the front side rectangular frame 3 and the lower side rectangular frame 4 to each other, and provide a space between the upper and lower walls. It also serves as a casing member for closing between the lower wall portions. Reference numeral 20 denotes a side wall of the front and back rectangular frames 3 and 4 in a state where the side walls of the front and back rectangular frames 3 and 4 are brought into sliding contact with the plate surfaces of the plate materials 5 and 6 with respect to the movement of the plate materials 5 and 6. Is an elastic sealing material that seals between the plate members 5 and 6.
【００２５】 表側及び裏側矩形枠３，４の内部における両板材５，６の端縁部分５ａ，６ａ は、裏側円形開口１０及び表側円形開口１４と同径（すなわち、送風機１の吸込 口９と同径）で、かつ、これら板材５，６の移動方向で互いに向かい合う凹の半 円弧状に形成し、これにより、表側及び裏側矩形枠３，４の連結体としてのケー シングＣの内部において、これら半円弧状端縁部分５ａ，６ｂどうしの連なりに より開口縁を形成する形態で、表側円形開口１４と裏側円形開口１０とを連通さ せる前記の通気開口７を形成してある。The edge portions 5 a, 6 a of the two plate members 5, 6 inside the front side and back side rectangular frames 3, 4 have the same diameter as the back side circular opening 10 and the front side circular opening 14 (that is, the diameter of the suction port 9 of the blower 1). (The same diameter) and are formed in concave semi-circular arcs facing each other in the direction of movement of these plate members 5 and 6, so that inside the casing C as a connected body of the front and rear rectangular frames 3 and 4, The ventilation opening 7 that connects the front-side circular opening 14 and the back-side circular opening 10 is formed in such a manner that an opening edge is formed by connecting these semicircular arc-shaped edge portions 5a and 6b.
【００２６】 一方、各板材５，６の外側端縁部分には起こし部５ｂ，６ｂを設け、これら起 こし部５ｂ，６ｂの夫々には、各別のネジ軸２１，２２を咬合状態で貫通させる ナット具２３，２４を取り付けてあり、また、これらナット具２３，２４に咬合 状態で貫通させたネジ軸２１，２２の夫々は、一端を表側矩形枠３の側壁部に回 転自在に支持し、かつ、他端を、上側案内枠１８と下側案内枠１９とにわたらせ た横フレーム２５，２６に回転自在に支持し、そして、これらネジ軸２１，２２ には、これら軸２１，２２を各別に回転操作するハンドル２７，２８を取り付け てある。On the other hand, raised portions 5b, 6b are provided at outer edge portions of the respective plate members 5, 6, and each of the raised portions 5b, 6b penetrates another screw shaft 21, 22 in an occlusal state. The nuts 23 and 24 are attached, and one end of each of the screw shafts 21 and 22 that penetrates the nuts 23 and 24 in an engaged state is rotatably supported on the side wall of the front side rectangular frame 3. And the other end is rotatably supported by horizontal frames 25 and 26 extending between the upper guide frame 18 and the lower guide frame 19, and these screw shafts 21 and 22 are attached to these shafts 21 and 22. Handles 27 and 28 for rotating each of them are attached.
【００２７】 つまり、ハンドル２７，２８によりネジ軸２１，２２を回転操作することで、 ネジ軸２１，２２とナット具２３，２４との螺合をもって各板材５，６を移動さ せる構造にしてあり、この移動構造において、前記の通気開口７を表側円形開口 １４及び裏側円形開口１０と同芯（換言すれば、送風機１の吸込口９と同芯）に 位置させた状態で、ハンドル２７，２８による板材移動操作をもって、両板材５ ，６をそれらの移動方向で離間側と接近側とに択一的に、かつ、表側及び裏側矩 形枠３，４から成るケーシングＣ内で重なり合い部分のある状態で同量だけ相互 移動させることにより、図３及び図４に示す如く、前記の半円弧形状の重なりで 形成される略楕円状（全開では円形状）の通気開口７の開口縁の全てを通気開口 ７の拡大方向と縮小方向とに択一的に変位させるようにして、通気開口７を可及 的に同芯の相似形状に保ちながら、その開口面積を変化させて送風機１の送風量 を調整する構造にしてある。That is, by rotating the screw shafts 21 and 22 by the handles 27 and 28, the plate members 5 and 6 are moved by screwing the screw shafts 21 and 22 and the nuts 23 and 24. In this moving structure, the handle 27 and the ventilation opening 7 are positioned concentrically with the front side circular opening 14 and the back side circular opening 10 (in other words, concentric with the suction port 9 of the blower 1). 28, the two plate members 5, 6 are selectively moved to the separated side and the approach side in the direction of their movement, and the overlapping portions are formed in the casing C composed of the front and rear rectangular frames 3, 4. By moving the same by the same amount in a certain state, as shown in FIGS. 3 and 4, all of the opening edges of the substantially elliptical (full-opened circular) ventilation openings 7 formed by the overlapping of the semicircular arc shapes are provided. Ventilation opening 7 The air flow rate of the blower 1 is adjusted by changing the opening area while keeping the ventilation opening 7 as concentric and similar as possible, by selectively displacing the expansion direction and the reduction direction. It has a structure.
【００２８】 以上要するに、本実施形態の風量調整ダンパ２では、送風機１の吸込口９に対 向させる通気開口７の開口縁を、その通気開口７の中心軸芯に対し直交する面方 向姿勢の複数の板材５，６の端縁部分５ａ，６ａの連なりにより形成し、そして 、この通気開口７の開口縁の全てを通気開口の拡大方向と縮小方向とに択一的に 変位させるように、板材５，６を重なり合い部分のある状態で板面方向へ移動さ せる操作機構Ｈを、前記の上側及び下側案内枠１８，１９、ハンドル２７，２８ 、ネジ軸２１，２２、並びに、ナット具２３，２４により構成してある。In short, in the air volume adjustment damper 2 of the present embodiment, the opening edge of the ventilation opening 7 facing the suction port 9 of the blower 1 is oriented in a plane direction perpendicular to the center axis of the ventilation opening 7. The plurality of plate members 5, 6 are formed by a series of edge portions 5a, 6a, and the entire opening edge of the ventilation opening 7 is selectively displaced in the expanding direction and the reducing direction of the ventilation opening. The operating mechanism H for moving the plate members 5 and 6 in the direction of the plate surface with the overlapping portion is provided by the upper and lower guide frames 18 and 19, the handles 27 and 28, the screw shafts 21 and 22, and the nut. The components 23 and 24 are provided.
【００２９】 また、板材５，６としては、板面方向に沿う１直線方向で離間側と接近側とに 択一的に、かつ、重なり合い部分のある状態で上記操作機構Ｈにより相互移動さ せる２枚の板材を設け、通風開口７の開口縁を形成するこれら２枚の板材５，６ の端縁部分５ａ，６ａを、上記１直線方向で互いに向かい合う凹の半円弧状に形 成してある。Further, the plate members 5 and 6 are mutually moved by the operation mechanism H in the linear direction along the plate surface direction, alternatively on the separation side and the approach side, and in a state where there is an overlapping portion. The two plate members are provided, and the edge portions 5a, 6a of the two plate members 5, 6 forming the opening edges of the ventilation openings 7 are formed into concave semicircular arcs facing each other in the one straight line direction. is there.
【００３０】 なお、２９は表側矩形枠３の側壁部どうし、具体的にはネジ軸２１，２２の支 持部どうしにわたらせた補強部材である。Reference numeral 29 denotes a reinforcing member extending between the side wall portions of the front side rectangular frame 3, specifically, the supporting portions of the screw shafts 21 and 22.
【００３１】 〔別の実施形態〕 前記の実施形態では、２枚の板材５，６を各別のハンドル２７，２８により個 別に移動操作する構造にしたが、図８に示すように、前記の２本のネジ軸２１， ２２を中間軸３０により一体連結して、この一体化した軸の回転操作により、２ 枚の板材５，６を連動させて離間側と接近側とに択一的に相互移動させる構造に してもよい。また、この場合、一体化した軸を回転操作するハンドル３１を、同 図５に示すように一体化した軸の一端側にのみ設ける構造、あるいは、一体化し た軸の両端側夫々に設ける構造のいずれを採用してもよい。[Another Embodiment] In the above-described embodiment, the two plate members 5, 6 are individually moved and operated by the respective handles 27, 28. However, as shown in FIG. The two screw shafts 21 and 22 are integrally connected by an intermediate shaft 30, and by rotating the integrated shaft, the two plate members 5 and 6 are interlocked so that the two plate members 5 and 6 can be selectively switched to the separated side and the approach side. You may make it the structure which moves mutually. In this case, a handle 31 for rotating the integrated shaft is provided only at one end of the integrated shaft as shown in FIG. 5 or a structure provided at both ends of the integrated shaft. Either may be adopted.
【００３２】 端縁部分の連なりにより通気開口７の開口縁を形成する板材の枚数は２枚に限 定されるものではなく、図９に示すように、３枚以上の板材３２〜３５の端縁部 分３２ａ〜３５ａの連なりにより、３角形状又はそれ以上の多角形状の通気開口 ７の開口縁を形成し、そして、適宜構造の操作機構Ｈにより、この通気開口７の 開口縁の全てを通気開口７の拡大方向と縮小方向とに択一的に変位させるように 、これら３枚以上の板材３２〜３５を重なり合い部分のある状態で板面方向へ移 動操作する構造にしてもよい。The number of the plate members forming the opening edge of the ventilation opening 7 by the connection of the edge portions is not limited to two, and as shown in FIG. A series of the edge portions 32a to 35a form an opening edge of the ventilation opening 7 having a triangular shape or a polygonal shape, and the entire opening edge of the ventilation opening 7 is formed by an operation mechanism H having an appropriate structure. In order to selectively displace the ventilation opening 7 in the enlargement direction and the reduction direction, the three or more plate members 32 to 35 may be configured to be moved in the plate surface direction with an overlapped portion.
【００３３】 また、このように３枚以上の板材３２〜３５を用いる場合にも、それら板材３ ２〜３５を移動操作する操作機構Ｈは、板材３２〜３５を連動移動させる構造、 あるいは、各別に移動させる構造のいずれを採用してもよい。When three or more plate members 32 to 35 are used as described above, the operation mechanism H for moving and operating the plate members 32 to 35 has a structure in which the plate members 32 to 35 are moved in conjunction with each other. Any of the structures that are moved separately may be adopted.
【００３４】 通気開口７の開口縁を形成する板材の端縁部分は、凹の弧状に形成することが 望ましいが、場合によっては直線形状にしてもよく、また、多数の板材を用いる ことにより、それら板材の端縁部分の連なりで形成する通気開口７の開口縁を円 形に近づけるようにしてもよい。The edge portion of the plate material forming the opening edge of the ventilation opening 7 is desirably formed in a concave arc shape. However, in some cases, the edge portion may be formed in a linear shape, and by using a large number of plate materials, The opening edge of the ventilation opening 7 formed by a series of the edge portions of these plate materials may be approximated to a circle.
【図１】送風機に取り付けた状態を示す斜視図FIG. 1 is a perspective view showing a state of being attached to a blower.
【図２】概略構造を示す斜視図FIG. 2 is a perspective view showing a schematic structure.
【図３】閉じ側に操作した状態を示す正面図FIG. 3 is a front view showing a state where the operation is performed to a closing side;
【図４】開き側に操作した状態を示し正面図FIG. 4 is a front view showing a state in which an operation is performed to an open side;
【図５】閉じ側に操作した状態と開き側に操作した状態
とを示す平面視断面図FIG. 5 is a cross-sectional plan view showing a state in which the cover is operated to the closed side and a state in which the cover is operated to the open side;
【図６】閉じ側に操作した状態と開き側に操作した状態
とを示す側面視断面図FIG. 6 is a cross-sectional side view showing a state in which the cover is operated to the close side and a state in which the cover is operated to the open side;
【図７】上側及び下側案内枠の構造図FIG. 7 is a structural view of the upper and lower guide frames.
【図８】別実施形態を示す平面視断面図FIG. 8 is a sectional plan view showing another embodiment.
【図９】他の別実施形態を示す正面図FIG. 9 is a front view showing another alternative embodiment.
１ 送風機 ９ 吸込口 ７ 通気開口 ５，６ 板材 ５ａ，６ａ 端縁部分 Ｈ 操作機構 DESCRIPTION OF SYMBOLS 1 Blower 9 Suction port 7 Vent opening 5, 6 Plate material 5a, 6a Edge part H Operation mechanism
───────────────────────────────────────────────────── フロントページの続き (72)考案者 宮川 淳 東京都新宿区西新宿２丁目６番１号 株式 会社大氣社内 (72)考案者 猪熊 英司 東京都新宿区西新宿２丁目６番１号 株式 会社大氣社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Atsushi Miyagawa 2-6-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo In-house Co., Ltd. (72) Eiji Inokuma 2-6-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Stock Company Daiki company
Claims (5)
開口縁を、その通気開口の中心軸芯に対し直交する面方
向姿勢の複数の板材の端縁部分の連なりにより形成し、 前記通気開口の開口縁の全てを前記通気開口の拡大方向
と縮小方向とに択一的に変位させるように、前記板材を
重なり合い部分のある状態で板面方向へ移動させる操作
機構を設けてある送風機用風量調整ダンパ。1. An opening edge of a ventilation opening opposed to a suction opening of a blower is formed by a series of end portions of a plurality of plate members in a plane direction orthogonal to a center axis of the ventilation opening. The air volume for a blower provided with an operation mechanism for moving the plate material in the direction of the plate surface with an overlapped portion so as to selectively displace all of the opening edges in the direction of enlargement and contraction of the ventilation opening. Adjustment damper.
材の端縁部分を凹の弧状に形成してある請求項１記載の
送風機用風量調整ダンパ。2. An air flow adjusting damper for a blower according to claim 1, wherein an edge portion of said plate material forming an opening edge of said ventilation opening is formed in a concave arc shape.
方向で離間側と接近側とに択一的に、かつ、重なり合い
部分のある状態で前記操作機構により相互移動させる２
枚の板材を設け、 前記通気開口の開口縁を形成するこれら２枚の板材の端
縁部分を、前記１直線方向で互いに向かい合う凹の半円
弧状に形成してある請求項２記載の送風機用風量調整ダ
ンパ。3. The plate member, which is alternately moved by the operating mechanism in a linear direction along a plate surface direction, alternatively on a separation side and an approach side, and in a state where there is an overlapping portion.
3. The blower according to claim 2, wherein two plate members are provided, and edge portions of these two plate members forming an opening edge of the ventilation opening are formed in concave semicircular shapes facing each other in the one straight line direction. Air volume adjustment damper.
口を３角形状又はそれ以上の多角形状にしてある請求項
１又は２記載の送風機用風量調整ダンパ。4. The air volume adjusting damper for a blower according to claim 1, wherein the number of the plate members is three or more, and the ventilation opening is formed in a triangular shape or a polygonal shape having a greater shape.
移動させる構成にしてある請求項１〜４のいずれか１項
に記載の送風機用風量調整ダンパ。5. The air volume adjusting damper for a blower according to claim 1, wherein said operating mechanism is configured to move a plurality of said plate members in an interlocked manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1997005558U JP3044856U (en) | 1997-06-27 | 1997-06-27 | Air volume adjustment damper for blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1997005558U JP3044856U (en) | 1997-06-27 | 1997-06-27 | Air volume adjustment damper for blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3044856U true JP3044856U (en) | 1998-01-16 |
Family
ID=43179265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1997005558U Expired - Lifetime JP3044856U (en) | 1997-06-27 | 1997-06-27 | Air volume adjustment damper for blower |
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| Country | Link |
|---|---|
| JP (1) | JP3044856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089761A (en) * | 1996-09-09 | 1998-04-10 | Kajima Corp | Damper device |
| CN105371460A (en) * | 2014-08-06 | 2016-03-02 | 松下知识产权经营株式会社 | Air supply apparatus |
| WO2018100766A1 (en) * | 2016-12-01 | 2018-06-07 | 三菱電機株式会社 | Ventilation system component and ventilator |
-
1997
- 1997-06-27 JP JP1997005558U patent/JP3044856U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089761A (en) * | 1996-09-09 | 1998-04-10 | Kajima Corp | Damper device |
| CN105371460A (en) * | 2014-08-06 | 2016-03-02 | 松下知识产权经营株式会社 | Air supply apparatus |
| JP2016037884A (en) * | 2014-08-06 | 2016-03-22 | パナソニックＩｐマネジメント株式会社 | Blower module |
| CN105371460B (en) * | 2014-08-06 | 2019-11-26 | 松下知识产权经营株式会社 | Air supply device |
| WO2018100766A1 (en) * | 2016-12-01 | 2018-06-07 | 三菱電機株式会社 | Ventilation system component and ventilator |
| TWI632331B (en) * | 2016-12-01 | 2018-08-11 | 日商三菱電機股份有限公司 | System components for ventilation and ventilation fans |
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