JP2007263559A

JP2007263559A - Ventilation grille device

Info

Publication number: JP2007263559A
Application number: JP2007189499A
Authority: JP
Inventors: Tomoaki Sakata; 知昭坂田; Etsuo Nakamura; 悦央中村; Hiroyuki Suzuki; 浩之鈴木
Original assignee: Max Co Ltd
Current assignee: Max Co Ltd
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2007-10-11

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive ventilation grille device capable of regulating an air volume by simple structure. SOLUTION: This ventilating grille device is provided with a cylinder body 21 having opened front and rear ends, and an air volume regulating mechanism 30 provided inside the cylinder body 21 to regulate the volume of air passed through an inside of the cylinder body, the air volume regulating mechanism 30 has a shaft part 26 provided in the central part of the cylinder body 21, and a plurality of regulation plates 31-35 provided rotatably in the shaft part 26 and overlapped from a front end side toward the rear end to shut off an air passage of the cylinder body 21, and the regulation plates 32-34 located behind the first regulation plate are turned together with the first regulation plate 31 sequentially from the frontmost one, in every turn of the first regulation plate by a prescribed angle, when turning the first regulation plate 31 arranged in the frontmost side, so as to widening an area for shutting off the air passage. COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、例えば室内の天井や壁に設けられ室内へ空気を給気または室内の空気を吸気する換気グリル装置に関する。 The present invention relates to a ventilation grill device that is provided, for example, on a ceiling or wall of a room and supplies air to the room or sucks room air.

従来から、図４４および図４５に示す換気グリル装置が知られている（特許文献１参照）。 Conventionally, a ventilation grill device shown in FIGS. 44 and 45 is known (see Patent Document 1).

かかる換気グリル装置は、上下端が開口した筒体１の中心部に設けられた軸部２に回動可能に設けた調整ネジ３と、この調整ネジ３に螺合されるとともにその調整ネジ３の回動によって上下動する可動部材４と、筒体１の内周壁に設けた２組の一対の回転支軸５に回動自在に軸支された一対のシャッタ６,６′とを備えている。 Such a ventilation grill device has an adjustment screw 3 rotatably provided on a shaft portion 2 provided at the center of a cylindrical body 1 whose upper and lower ends are open, and is screwed to the adjustment screw 3 and the adjustment screw 3. And a pair of shutters 6 and 6 'pivotally supported by two pairs of rotation support shafts 5 provided on the inner peripheral wall of the cylindrical body 1. Yes.

シャッタ６,６′には、回転支軸５を回転自在に嵌入する筒体６Ａと、ガイド溝７とが形成され、シャッタ６,６′の下面側にはガイド溝７に沿って断面がコ字状のガイドレール８が形成されている。そして、可動部材４に設けたアーム４Ａの先端部がガイド溝７に挿入され、この先端部に設けたピン９がガイドレール８で囲まれる空間８ａ内に挿入されており、ピン９がガイドレール８に沿ってその空間８ａ内を移動できるようになっている。また、ピン９の位置は回転支軸５の外側に位置している。 The shutter 6, 6 ′ is formed with a cylindrical body 6 A into which the rotation support shaft 5 is rotatably inserted and a guide groove 7. A cross section is formed along the guide groove 7 on the lower surface side of the shutter 6, 6 ′. A character-shaped guide rail 8 is formed. The tip of the arm 4A provided on the movable member 4 is inserted into the guide groove 7, and the pin 9 provided on the tip is inserted into the space 8a surrounded by the guide rail 8, and the pin 9 is the guide rail. 8 can move in the space 8a. Further, the position of the pin 9 is located outside the rotation support shaft 5.

そして、軸部２に設けたツマミ１０を回動することにより調整ネジ３が回動し、この調整ネジ３の回動により可動部材４が上下動する。可動部材４の上下動によりピン９がガイドレール８の空間８ａ内を上下動していくことにより、シャッタ６が回転支軸５回りに回動する。すなわち、可動部材４が下降するとシャッタ６は回転支軸５を中心にして時計回りに回動し、シャッタ６′は回転支軸５を中心にして反時計回りに回動して筒体１内を閉成していく。 Then, the adjustment screw 3 is rotated by rotating the knob 10 provided on the shaft portion 2, and the movable member 4 is moved up and down by the rotation of the adjustment screw 3. As the movable member 4 moves up and down, the pin 9 moves up and down in the space 8 a of the guide rail 8, so that the shutter 6 rotates about the rotation support shaft 5. That is, when the movable member 4 is lowered, the shutter 6 is rotated clockwise around the rotation support shaft 5, and the shutter 6 ′ is rotated counterclockwise around the rotation support shaft 5. Will be closed.

逆に、可動部材４が上昇するとシャッタ６は回転支軸５を中心にして反時計回りに回動し、シャッタ６′は回転支軸５を中心にして時計回りに回動して筒体１内を開成していくことになる。そして、これらシャッタ６,６′の回動位置により筒体１内に流れる空気の風量を調整するものである。
特公平６−５８１８１号公報（第２頁、第１図、第２図） Conversely, when the movable member 4 is raised, the shutter 6 rotates counterclockwise about the rotation support shaft 5, and the shutter 6 ′ rotates clockwise about the rotation support shaft 5 to rotate the cylinder 1. The inside will be established. And the air volume of the air which flows into the cylinder 1 is adjusted with the rotation position of these shutters 6 and 6 '.
Japanese Examined Patent Publication No. 6-58181 (page 2, FIG. 1, FIG. 2)

しかしながら、このような換気グリル装置にあっては、シャッタ６,６′を回転支軸５回りに回動させるために可動部材４を上下動可能に設けたり、この可動部材４を上下動させるために調整ネジ３を軸部２に回動可能に設けたり、調整ネジを回動するツマミ１０を軸部２に設けたりしなければならず、さらに、回動部材４にアーム４Ａを設け、このアーム４Ａの先端部にピン９を設けなければならないので、全体の構造が複雑になってしまう問題があった。また、シャッタ６には溝７を設けるとともに断面がコ字状のガイドレール８を設けており、さらに筒体６Ａを設けているので、シャッタ６を射出成形する金型をスライド構造にしなければならず、金型が複雑なものになってしまい、シャッタ（調整板）６は高価なものとなり、この結果、換気グリル装置は高価なものになってしまう等の問題があった。 However, in such a ventilation grill device, the movable member 4 is provided to be movable up and down in order to rotate the shutters 6 and 6 'around the rotation support shaft 5, or the movable member 4 is moved up and down. An adjustment screw 3 must be provided on the shaft portion 2 so as to be rotatable, a knob 10 for rotating the adjustment screw must be provided on the shaft portion 2, and an arm 4A is provided on the rotation member 4. Since the pin 9 must be provided at the tip of the arm 4A, there is a problem that the entire structure becomes complicated. Further, since the shutter 6 is provided with a groove 7 and a guide rail 8 having a U-shaped cross section, and further provided with a cylindrical body 6A, a mold for injection molding the shutter 6 must have a slide structure. In other words, the mold becomes complicated, and the shutter (adjustment plate) 6 becomes expensive. As a result, there is a problem that the ventilation grill device becomes expensive.

この発明の目的は、簡単な構造で風量を調整することができ、しかも安価な換気グリル装置を提供することにある。 An object of the present invention is to provide a ventilation grill device that can adjust the air volume with a simple structure and is inexpensive.

上記目的を達成するため、請求項１の発明は、前端および後端が開口された筒体と、この筒体内に設けられるとともにこの筒体内を通る空気の風量を調整する風量調整手段とを備え、この風量調整手段は、前記筒体の中央部に設けた軸部と、この軸部に回動可能に設けられ且つ前記前端側から後端に向かって重ねられるとともに前記筒体の風路を遮断するための複数の扇状の調整板とを有し、最前端側に配置された第１調整板を回動させた際、この第１調整板が所定角度回動していく毎に、第１調整板の後ろ側にある調整板が前から順番に第１調整板とともに回動して前記風路を遮断する遮断面積が大きくなり、その第１調整板を逆方向に回動させた際に前記遮断面積が小さくなる換気グリル装置であって、
前記各調整板は係合部と係止部とを有し、
前記係合部は、前記調整板の周面の一端から径方向へ突出し、
前記係止部は、前記調整板の周面の他端から径方向に突出するとともに前記筒体の軸線方向へ突出し、
調整板の前に配置された前調整板が所定角度回動した際にその調整板の係合部が前調整板の係止部に係合してその前調整板とともに前記調整板が回動し、この調整板が所定角度回動した際にこの調整板の後ろに配置された後調整板の係合部に前記調整板の係止部が係合して後調整板が前記調整板とともに回動していくことを特徴とする。 In order to achieve the above object, the invention of claim 1 includes a cylindrical body whose front end and rear end are opened, and an air volume adjusting means which is provided in the cylindrical body and adjusts the air volume of air passing through the cylindrical body. The air volume adjusting means includes a shaft portion provided at a central portion of the cylindrical body, and is rotatably provided on the shaft portion and overlapped from the front end side toward the rear end, and the air path of the cylindrical body. A plurality of fan-shaped adjustment plates for blocking, and each time the first adjustment plate rotates a predetermined angle when the first adjustment plate arranged on the foremost end side is rotated, When the adjustment plate on the back side of one adjustment plate rotates together with the first adjustment plate sequentially from the front to increase the blocking area for blocking the air passage, the first adjustment plate is rotated in the reverse direction. A ventilation grill device having a reduced blocking area,
Each adjusting plate has an engaging portion and a locking portion,
The engaging portion protrudes in a radial direction from one end of the peripheral surface of the adjustment plate,
The locking portion protrudes in the radial direction from the other end of the peripheral surface of the adjustment plate and protrudes in the axial direction of the cylindrical body,
When the front adjustment plate arranged in front of the adjustment plate rotates by a predetermined angle, the engagement portion of the adjustment plate engages with the locking portion of the front adjustment plate, and the adjustment plate rotates together with the front adjustment plate. When the adjusting plate is rotated by a predetermined angle, the engaging portion of the adjusting plate is engaged with the engaging portion of the adjusting plate disposed behind the adjusting plate, and the adjusting plate is moved together with the adjusting plate. It is characterized by rotating.

請求項４の発明は、前端および後端が開口された筒体と、この筒体内に設けられるとともにこの筒体内を通る空気の風量を調整する風量調整手段とを備えた換気グリル装置であって、
前記筒体を大径筒部と該大径筒部より小径の小径筒部とで形成し、
前記風量調整手段を前記大径筒部内に設け、
前記風量調整手段は、前記筒体の中央部に設けた軸部に放射状に配置された複数の平板状の調整板を有し、
前記各調整板は、各々、その面が前記大径筒部の風路方向と対向して風路を遮断する方向と、前記風路方向と平行となる方向とに前記大径筒部に着脱可能に装着できるようになっていることを特徴とする。 According to a fourth aspect of the present invention, there is provided a ventilation grill device comprising: a cylinder body whose front end and rear end are opened; and an air volume adjusting means which is provided in the cylinder body and adjusts the air volume of air passing through the cylinder body. ,
Forming the cylindrical body with a large-diameter cylindrical portion and a small-diameter cylindrical portion having a smaller diameter than the large-diameter cylindrical portion;
The air volume adjusting means is provided in the large diameter cylindrical portion,
The air volume adjusting means has a plurality of plate-like adjustment plates arranged radially on a shaft provided in the center of the cylindrical body,
Each adjustment plate is attached to and detached from the large-diameter cylindrical portion in a direction in which the surface opposes the air passage direction of the large-diameter cylindrical portion and blocks the air passage, and in a direction parallel to the air passage direction. It is designed to be able to be mounted as possible.

請求項５の発明は、前端および後端が開口された筒体と、この筒体内に設けられるとともにこの筒体内を通る空気の風量を調整する風量調整手段とを備えた換気グリル装置であって、
前記筒体を大径筒部と該大径筒部より小径の小径筒部とで形成し、
前記風量調整手段を前記大径筒部内に設け、
前記風量調整手段は、前記筒体の中央部に設けた軸部に放射状に配置された複数の調整板を有し、
前記各調整板は、平板状の板部と、この板部の一端に設けた第１支軸と、その板部の他端に設けた第２支軸とを有し、
各調整板の第１支軸がそれそぞれ着脱可能に係合する複数の第１凹部を前記筒体の周壁に周方向に沿って設け、
各調整板の第２支軸がそれぞれ着脱可能に係合する複数の第２凹部を前記軸部に周方向に沿って設け、
各調整板を第１,第２支軸回りに所定角度回動させてその調整板の板部の向きを変えて、第１,第２支軸を第１,第２凹部に係合させた際に、第１,第２支軸のうちいずれか一方が対応する第１凹部または第２凹部に軸回りに対して固定され、
前記調整板の板部の向きは、前記板部が前記大径筒部の風路方向と対向して風路を遮断する方向と、前記風路方向と平行となる方向との間で変えられることを特徴とする。 According to a fifth aspect of the present invention, there is provided a ventilation grill device comprising: a cylinder body whose front end and rear end are opened; and an air volume adjusting means which is provided in the cylinder body and adjusts the air volume of air passing through the cylinder body. ,
Forming the cylindrical body with a large-diameter cylindrical portion and a small-diameter cylindrical portion having a smaller diameter than the large-diameter cylindrical portion;
The air volume adjusting means is provided in the large diameter cylindrical portion,
The air volume adjusting means has a plurality of adjusting plates arranged radially on a shaft portion provided at a central portion of the cylindrical body,
Each adjustment plate has a flat plate portion, a first support shaft provided at one end of the plate portion, and a second support shaft provided at the other end of the plate portion,
A plurality of first recesses, which are detachably engaged with the first support shafts of the respective adjustment plates, are provided in the circumferential wall of the cylindrical body along the circumferential direction,
A plurality of second recesses that are detachably engaged with the second support shafts of the respective adjustment plates are provided in the shaft portion along the circumferential direction,
Each adjustment plate is rotated by a predetermined angle around the first and second support shafts to change the direction of the plate portion of the adjustment plate, and the first and second support shafts are engaged with the first and second recesses. In this case, one of the first and second spindles is fixed to the corresponding first recess or second recess with respect to the axis,
The direction of the plate portion of the adjusting plate is changed between a direction in which the plate portion opposes the air passage direction of the large-diameter cylindrical portion and blocks the air passage, and a direction parallel to the air passage direction. It is characterized by that.

この発明によれば、簡単な構造で風量を調整することができ、換気グリル装置を安価にすることができる。 According to the present invention, the air volume can be adjusted with a simple structure, and the ventilation grill device can be made inexpensive.

以下、この発明に係わる換気グリル装置の実施形態である実施例を図面に基づいて説明する。 Hereinafter, an example which is an embodiment of a ventilation grill device concerning this invention is described based on a drawing.

［第１実施例］
図１ないし図３に示す換気グリル装置２０は、前端および後端が開口されるとともに風路を形成した樹脂製の筒体２１と、この筒体２１内に設けられた風量調整機構（風量調整手段）３０とを備えている。
［筒体２１］
筒体２１は、前端側（図２において下側）に径の大きい大径筒部２１Ａと、この大径筒部２１Ａの後ろに一体的に形成された径の小さい小径筒部２１Ｂとを有しており、筒体２１内には段差面２１Ｃが形成されている。そして、大径筒部２１Ａの前端には、室内の壁や天井壁等の表側に取り付けるための方形状のフランジ２２が一体形成され、このフランジ２２にはグリル２３が着脱可能に装着されるようになっている。 [First embodiment]
A ventilation grill device 20 shown in FIG. 1 to FIG. 3 includes a resin-made cylinder 21 having a front end and a rear end and an air passage, and an air volume adjustment mechanism (air volume adjustment) provided in the cylinder 21. Means) 30.
[Cylinder 21]
The cylindrical body 21 has a large-diameter cylindrical portion 21A having a large diameter on the front end side (lower side in FIG. 2), and a small-diameter cylindrical portion 21B having a small diameter integrally formed behind the large-diameter cylindrical portion 21A. A step surface 21 C is formed in the cylindrical body 21. A rectangular flange 22 is integrally formed at the front end of the large-diameter cylindrical portion 21A so as to be attached to the front side of an indoor wall or ceiling wall. A grille 23 is detachably attached to the flange 22. It has become.

また、筒体２１内の中央部（中心部）には、小径筒部２１Ｂの内周壁から中心に向けて延びた３つの支持部２５に支持された軸部２６が設けられており、この軸部２６には軸孔２６ａが形成されている。筒体２１は、アタッチメント２４を介して換気装置(図示せず)に接続された図示しないダクトに接続されるようになっている。 Further, a shaft portion 26 supported by three support portions 25 extending toward the center from the inner peripheral wall of the small-diameter tube portion 21B is provided at the center portion (center portion) in the tube body 21. A shaft hole 26 a is formed in the portion 26. The cylinder 21 is connected to a duct (not shown) connected to a ventilator (not shown) via an attachment 24.

アタッチメント２４は、筒体２１に嵌合する筒部２４Ａと、図示しないダクト接続される筒状の接続部２４Ｂとを有している。換気グリル装置２０の筒体２１は、アタッチメント２４をその接続部２４Ｂの径の異なるアタッチメントに交換することにより、径が異なるダクトに接続することが可能となるので、換気装置のダクトの径に合わせて換気グリル装置２０を製造する必要がなく、このため換気グリル装置２０のコストを抑えることができる。
［風量調整機構３０］
風量調整機構３０は、図４および図５に示すように、筒体２１内に設けた軸部２６と、この軸部２６に回動可能に設けた複数の樹脂製の調整板３１〜３６とを有している。調整板３１〜３６は、この順番に前から後ろへ重ねられており、各調整板３１〜３６は互いに所定角度の範囲で相対的に回動自在となっている。
［調整板３１］
調整板（第１調整板）３１は、図６ないし図８に示すように、中心部に軸孔３１ａを設けた円形部３１Ａと、この円形部３１Ａから互いに反対の径方向へ延びた扇状の板状の調整部３１Ｂ,３１Ｃとを有している。また、円形部３１Ａには、軸孔３１ａの周囲に４つの係止孔３１ｂが形成されている。 The attachment 24 has a cylindrical portion 24A that fits into the cylindrical body 21, and a cylindrical connecting portion 24B that is connected to a duct (not shown). The cylindrical body 21 of the ventilation grill device 20 can be connected to a duct having a different diameter by replacing the attachment 24 with an attachment having a different diameter of the connecting portion 24B. Therefore, it is not necessary to manufacture the ventilation grill device 20, and the cost of the ventilation grill device 20 can be reduced.
[Air volume adjustment mechanism 30]
As shown in FIGS. 4 and 5, the air volume adjustment mechanism 30 includes a shaft portion 26 provided in the cylindrical body 21, and a plurality of resin-made adjustment plates 31 to 36 that are rotatably provided on the shaft portion 26. have. The adjustment plates 31 to 36 are stacked in this order from front to back, and the adjustment plates 31 to 36 are relatively rotatable within a predetermined angle range.
[Adjustment plate 31]
As shown in FIGS. 6 to 8, the adjustment plate (first adjustment plate) 31 includes a circular portion 31A provided with a shaft hole 31a at the center, and a fan-like shape extending from the circular portion 31A in opposite radial directions. It has plate-shaped adjustment parts 31B and 31C. The circular portion 31A has four locking holes 31b formed around the shaft hole 31a.

調整部３１Ｂの周面３１cの両端には径方向へ突出した突出部（係合部）３１dと突出部３１eが形成され、突出部３１eには下方（図８において）に突出した突起部（係止部）３１fが形成されている。同様に、調整部３１Ｃの周面３１gの両端に突出部（係合部）３１hと突出部３１iとが形成され、突出部３１iには突起部（係止部）３１jが形成されている。突出部３１ｄ,３１hは軸孔３１ａに対して互いに対称位置に配置され、突起部３１f,３１jは軸孔３１ａに対して互いに対称位置に配置されている。 A projecting portion (engaging portion) 31d and a projecting portion 31e projecting in the radial direction are formed at both ends of the peripheral surface 31c of the adjusting portion 31B, and a projecting portion (engagement) projecting downward (in FIG. 8) is formed on the projecting portion 31e. (Stopping part) 31f is formed. Similarly, a protruding portion (engaging portion) 31h and a protruding portion 31i are formed at both ends of the peripheral surface 31g of the adjusting portion 31C, and a protruding portion (locking portion) 31j is formed at the protruding portion 31i. The protrusions 31d and 31h are disposed at positions symmetrical with respect to the shaft hole 31a, and the protrusions 31f and 31j are disposed at positions symmetrical with respect to the shaft hole 31a.

各調整板３２〜３６も調整板３１と同一の大きさで同一形状に構成されているので、その説明は省略する。 Since each of the adjustment plates 32 to 36 has the same size and the same shape as the adjustment plate 31, the description thereof is omitted.

各調整板３１〜３６は、図４および図５に示すように重ねられて、回転ツマミ３７の軸３８がその軸孔３１ａ〜３６ａに挿入され、その軸３８の先端部に設けた突起部３８ａ（図８参照）が筒体２１の軸部２６の軸孔２６ａを貫装して、その軸孔２６ａに係止することにより軸部２６に取り付けられている。そして、各調整板３１〜３６は回転ツマミ３７の軸３８回りに回動自在となっている。回転ツマミ３７は、筒体２１の軸部２６の軸孔２６ａに回転可能に取り付けられている。 The adjustment plates 31 to 36 are overlapped as shown in FIGS. 4 and 5, the shaft 38 of the rotary knob 37 is inserted into the shaft holes 31 a to 36 a, and the protrusion 38 a provided at the tip of the shaft 38. (See FIG. 8) is attached to the shaft portion 26 by penetrating the shaft hole 26a of the shaft portion 26 of the cylindrical body 21 and engaging with the shaft hole 26a. The adjustment plates 31 to 36 are rotatable around the shaft 38 of the rotary knob 37. The rotary knob 37 is rotatably attached to the shaft hole 26 a of the shaft portion 26 of the cylindrical body 21.

回転ツマミ３７のツマミ部３７Ｂの後端面には、図８に示すように、４つの突起３７ｔが形成され、これら突起３７ｔが調整板３１の係止孔３１ｂに係合して、回転ツマミ３７の回動とともに調整板３１が回動していくようになっている。
［動作］
次に、上記のように構成される換気グリル装置２０の動作について説明する。 As shown in FIG. 8, four protrusions 37 t are formed on the rear end surface of the knob portion 37 B of the rotary knob 37, and these protrusions 37 t are engaged with the locking holes 31 b of the adjustment plate 31. The adjustment plate 31 is rotated with the rotation.
[Operation]
Next, operation | movement of the ventilation grill apparatus 20 comprised as mentioned above is demonstrated.

調整板３１〜３６が図４および図９に示すように重ねられていて筒体２１内の風路が全開している場合、この状態から調整板３１〜３６を回動させて筒体２１風路の開度を調整するには、先ずグリル２３を外す。次に、回転ツマミ３７のツマミ部３７Ｂを時計回り（図４において時計回り、図６および図７において反時計回り）に回していくと、回転ツマミ３７とともに調整板３１が回動していく。この調整板３１が所定角度である例えばα回動すると、図７に示すように、調整板３１の突起部３１f,３１j（図８参照）が調整板３２の突出部３２ｄ,３２hに係合する。 When the adjustment plates 31 to 36 are overlapped as shown in FIGS. 4 and 9 and the air passage in the cylindrical body 21 is fully open, the adjustment plates 31 to 36 are rotated from this state to wind the cylindrical body 21 In order to adjust the opening of the road, first the grill 23 is removed. Next, when the knob portion 37B of the rotary knob 37 is rotated clockwise (clockwise in FIG. 4 and counterclockwise in FIGS. 6 and 7), the adjustment plate 31 is rotated together with the rotary knob 37. When the adjustment plate 31 is rotated by a predetermined angle, for example, α, the protrusions 31f and 31j (see FIG. 8) of the adjustment plate 31 engage with the protrusions 32d and 32h of the adjustment plate 32 as shown in FIG. .

さらに、回転ツマミ３７を回して調整板３１を回動していくと、調整板３１とともに調整板３２が回動していく。そして、調整板３２が所定角度α回動すると、すなわち調整板３１が２α回動すると、図１０に示すように、調整板３２の突起部３２f,３２j(図示せず)が調整板３３の突出部３３ｄ,３３h(図示せず)に係合する。 Further, when the rotary knob 37 is turned to rotate the adjustment plate 31, the adjustment plate 32 is rotated together with the adjustment plate 31. When the adjustment plate 32 rotates by a predetermined angle α, that is, when the adjustment plate 31 rotates by 2α, the protrusions 32f and 32j (not shown) of the adjustment plate 32 protrude from the adjustment plate 33 as shown in FIG. Engages with the portions 33d and 33h (not shown).

そして、調整板３１および調整板３２の回動とともに調整板３３が回動していく。このように、調整板３１が所定角度α回動する毎に調整板３２〜３６がこの順番で回動されていき、筒体２１内の風路を遮断する面積が大きくなっていく。すなわち、筒体２１内の風路が調整板３１〜３６により閉成されていき、筒体２１に流れる空気の風量が調整される。 Then, the adjustment plate 33 rotates with the rotation of the adjustment plate 31 and the adjustment plate 32. As described above, every time the adjustment plate 31 is rotated by the predetermined angle α, the adjustment plates 32 to 36 are rotated in this order, and the area for blocking the air path in the cylindrical body 21 is increased. That is, the air path in the cylinder 21 is closed by the adjustment plates 31 to 36, and the air volume of the air flowing through the cylinder 21 is adjusted.

調整板３１が約（１８０−α）度だけ回動されると、図１１に示すように筒体２１内の風路が調整板３１〜３６により全閉される。 When the adjustment plate 31 is rotated by about (180−α) degrees, the air path in the cylinder 21 is fully closed by the adjustment plates 31 to 36 as shown in FIG.

この状態から、回転ツマミ３７を反時計回り（図４において）に回動していく。そして、調整板３１が上記と逆方向に所定角度α回動すると、調整板３１の突起部３１f,３１j（図８参照）が調整板３２の突出部３２e,３２i(図示せず)に係合し、この後調整板３１とともに調整板３２が逆方向に回動していく。同様にして、調整板３１がさらに上記と逆方向に所定角度α回動する毎に調整板３３〜３６がこの順番で上記と逆方向に回動されていき、筒体２１内の風路を遮断する面積が小さくなっていく。すなわち、筒体２１内の風路が開成されていく。 From this state, the rotary knob 37 is rotated counterclockwise (in FIG. 4). When the adjustment plate 31 is rotated by a predetermined angle α in the opposite direction, the protrusions 31f and 31j (see FIG. 8) of the adjustment plate 31 are engaged with the protrusions 32e and 32i (not shown) of the adjustment plate 32. After that, the adjustment plate 32 is rotated in the reverse direction together with the adjustment plate 31. Similarly, every time the adjusting plate 31 further rotates by a predetermined angle α in the opposite direction, the adjusting plates 33 to 36 are rotated in the reverse direction in this order, and the air path in the cylindrical body 21 is changed. The area to be blocked becomes smaller. That is, the air path in the cylinder 21 is opened.

このように、各調整板３１〜３６を回転ツマミ３７により筒体２１の軸部２６に回転自在に軸支させ、各調整板３１〜３６を回動させることにより風量を調整するようにしたものであるから、その構成は至って簡単なものである。 As described above, the adjustment plates 31 to 36 are rotatably supported on the shaft portion 26 of the cylindrical body 21 by the rotary knob 37, and the air volume is adjusted by rotating the adjustment plates 31 to 36. Therefore, the configuration is very simple.

また、各調整板３１〜３６は、円形部３１Ａ〜３６Ａと、板状の調整部３１Ｂ,３１Ｃ〜３６Ｂ,３６Ｃと、突出部３１ｄ,３１h〜３６ｄ,３６hおよび突起部３１f,３１j〜３６f,３６jとを設けたものであるから、アンダーカット部がなく、このため、各調整板３１〜３６を射出成形する金型をスライド構造にする必要がなく、調整板３１〜３６は安価なものとなり、換気グリル装置２０は安価なものとなる。さらに、各調整板３１〜３６は同一形状で同一大きさなので、調整板３１〜３６を射出成形する金型は１つでよく、このため、さらに調整板３１〜３６は安価なものとなり、換気グリル装置２０はさらに安価なものとなる。
［第２実施例］
図１２は、第２実施形態の換気グリル装置５０を示したものである。この換気グリル装置５０は、図１３ないし図１５に示すように、前端および後端が開口されるとともに風路を形成した樹脂製の筒体５１と、この筒体５１内に設けられた風量調整機構（風量調整手段）６０とを備えている。
［筒体５１］
筒体５１は、前端側（図１３〜図１５において左側）に径の大きい大径筒部５１Ａと、この大径筒部５１Ａの後ろに一体的に形成され大径筒部５１Ａの径より小さい中径筒部５１Ｂと、中径筒部５１Ｂの径より小さい小径筒部５１Ｃと、中径筒部５１Ｂと小径筒部５１Ｃとを結ぶラッパ状の風路部５１Ｄとを有しており、筒体５１内であって大径筒部５１Ａと中径筒部５１Ｂとの間に段差面５１Ｅが形成されている。そして、大径筒部５１Ａの前端には、室内の壁や天井壁等の表側に取り付けるための方形状のフランジ５２が一体形成され、このフランジ５２にはグリル５３が着脱可能に装着されるようになっている。 The adjustment plates 31 to 36 include circular portions 31A to 36A, plate-like adjustment portions 31B, 31C to 36B, and 36C, protrusions 31d, 31h to 36d, and 36h, and protrusions 31f, 31j to 36f, and 36j. Therefore, there is no undercut portion, and therefore there is no need to make the mold for injection molding the adjustment plates 31 to 36 into a slide structure, and the adjustment plates 31 to 36 are inexpensive, The ventilation grill device 20 is inexpensive. Further, since each of the adjustment plates 31 to 36 has the same shape and the same size, only one mold is required for injection molding the adjustment plates 31 to 36. Therefore, the adjustment plates 31 to 36 are further inexpensive, and ventilation is performed. The grill device 20 is further inexpensive.
[Second Embodiment]
FIG. 12 shows a ventilation grill device 50 of the second embodiment. As shown in FIGS. 13 to 15, the ventilation grill device 50 includes a resin cylinder 51 having a front and rear ends and an air passage, and an air volume adjustment provided in the cylinder 51. And a mechanism (air volume adjusting means) 60.
[Cylinder 51]
The cylindrical body 51 has a large-diameter cylindrical portion 51A having a large diameter on the front end side (left side in FIGS. 13 to 15), and is integrally formed behind the large-diameter cylindrical portion 51A and is smaller in diameter than the large-diameter cylindrical portion 51A. It has an intermediate diameter cylinder part 51B, a small diameter cylinder part 51C smaller than the diameter of the intermediate diameter cylinder part 51B, and a trumpet-shaped air passage part 51D connecting the intermediate diameter cylinder part 51B and the small diameter cylinder part 51C. A step surface 51E is formed in the body 51 between the large-diameter cylindrical portion 51A and the medium-diameter cylindrical portion 51B. A square flange 52 is integrally formed at the front end of the large-diameter cylindrical portion 51A so as to be attached to the front side of an indoor wall or ceiling wall. A grille 53 is detachably attached to the flange 52. It has become.

小径筒部５１Ｃは、第１実施形態と同様にアタッチメント２４（図３参照）を介して換気装置(図示せず)に接続された図示しないダクトに接続されるようになっている。 The small-diameter cylindrical portion 51C is connected to a duct (not shown) connected to a ventilator (not shown) via the attachment 24 (see FIG. 3) as in the first embodiment.

また、筒体５１内である中径筒部５１Ｂ内の中心部には図１６ないし図１８に示すように筒軸５４が配置され、この筒軸５４は風路部５１Ｄの内周壁から中心に向けて延びた３つの支持部５５により支持されている。 Further, as shown in FIGS. 16 to 18, a cylindrical shaft 54 is disposed at the center of the cylindrical body 51B, which is the cylindrical body 51, and the cylindrical shaft 54 is centered from the inner peripheral wall of the air passage 51D. It is supported by the three support parts 55 extended toward.

筒軸５４の周壁の端面（図１７および図１８において左端面）には所定間隔毎に１２個の凹部（第１凹部）５４ａが形成されている。また、筒体５１の段差面５１Ｅと中径筒部５１Ｂの内周面とで形成される角部には各凹部５４ａに対応して凹部（第２凹部）５１fがそれぞれ形成されている。凹部５４ａと凹部５１fとを結ぶ直線は筒体５１の径方向となっている。各凹部５１fは、図１９に示すように直方体状に形成されていて角部を有している。
［風量調整機構６０］
風量調整機構６０は、図１２ないし図１５に示すように、放射状に配置された複数の樹脂製の調整板６１等から構成されている。各調整板６１は同じ大きさの同一形状に形成されている。
［調整板６１］
各調整板６１は、図２０および図２１に示すように、ほぼ扇形状をした平板状の板部６２と、この板部６２の一端に設けた軸部（第１支軸）６３と、板部６２の後端（周端）に設けた軸部（第２支軸）６４とを有している。軸部６４は、角部を有する４つの直方体の軸片６４Ａ〜６４Ｄから構成され、これら軸片６４Ａ〜６４Ｄによって十字形に形成されている。 Twelve concave portions (first concave portions) 54a are formed at predetermined intervals on the end surface (left end surface in FIGS. 17 and 18) of the peripheral wall of the cylindrical shaft 54. In addition, concave portions (second concave portions) 51f are respectively formed in the corner portions formed by the step surface 51E of the cylindrical body 51 and the inner peripheral surface of the medium diameter cylindrical portion 51B corresponding to the concave portions 54a. A straight line connecting the recess 54 a and the recess 51 f is the radial direction of the cylinder 51. As shown in FIG. 19, each recess 51f is formed in a rectangular parallelepiped shape and has a corner.
[Air volume adjustment mechanism 60]
As shown in FIGS. 12 to 15, the air volume adjusting mechanism 60 is composed of a plurality of resin-made adjusting plates 61 arranged radially. Each adjustment plate 61 is formed in the same shape with the same size.
[Adjustment plate 61]
As shown in FIGS. 20 and 21, each adjustment plate 61 includes a flat plate portion 62 having a substantially fan shape, a shaft portion (first support shaft) 63 provided at one end of the plate portion 62, a plate And a shaft portion (second support shaft) 64 provided at the rear end (circumferential end) of the portion 62. The shaft portion 64 includes four rectangular parallelepiped shaft pieces 64A to 64D having corner portions, and is formed in a cross shape by the shaft pieces 64A to 64D.

各軸片６４Ａ〜６４Ｄは、同一大きさの同一形状に形成されており、筒体５１の凹部５１fとほぼ同一の大きさに設定され、その凹部５１fに着脱可能に嵌入するようになっている。また、軸部６３は筒軸５４の凹部５４ａに着脱可能に係合するようになっている。
［動作］
次に、上記のように構成される換気グリル装置５０の動作について説明する。 Each of the shaft pieces 64A to 64D is formed in the same shape with the same size, is set to be approximately the same size as the recess 51f of the cylindrical body 51, and is detachably fitted into the recess 51f. . The shaft 63 is detachably engaged with the recess 54a of the cylindrical shaft 54.
[Operation]
Next, the operation of the ventilation grill device 50 configured as described above will be described.

換気グリル装置５０を全開する場合は、図２２に示すように、各調整板６１の軸部６４の軸片６４Ｃを筒体５１の凹部５１fに嵌入させ、各調整板６１の軸部６３を筒軸５４の凹部５４ａに係合させる。このようにして、各調整板６１を筒体５１に装着すれば、図１３および図１５に示すように、調整板６１の板部６２の面６２ａが筒体５１の風路方向と平行になるので全開状態となる。 When the ventilation grill device 50 is fully opened, as shown in FIG. 22, the shaft piece 64C of the shaft portion 64 of each adjustment plate 61 is fitted into the recess 51f of the cylinder body 51, and the shaft portion 63 of each adjustment plate 61 is inserted into the cylinder. Engage with the recess 54 a of the shaft 54. If each adjustment plate 61 is attached to the cylinder 51 in this way, the surface 62a of the plate portion 62 of the adjustment plate 61 becomes parallel to the air path direction of the cylinder 51 as shown in FIGS. Therefore, it will be fully open.

換気グリル装置５０を全開する場合には、先ず、各調整板６１を筒体５１から外して、図２３に示すように、各調整板６１の軸部６４の軸片６４Ｂを筒体５１の凹部５１fに嵌入させ、各調整板６１の軸部６３を筒軸５４の凹部５４ａに係合させる。このようにして、各調整板６１を筒体５１に装着すれば、図１２および図１４に示すように、調整板６１の板部６２の面６２ａが筒体５１の風路方向と直交するので全閉状態となる。換言すれば、調整板６１の板部６２の面６２ａが筒体５１の風路を遮断するので全閉となる。 When the ventilation grill device 50 is fully opened, first, each adjustment plate 61 is removed from the cylinder body 51, and the shaft piece 64B of the shaft portion 64 of each adjustment plate 61 is formed as a recess in the cylinder body 51 as shown in FIG. The shaft portion 63 of each adjustment plate 61 is engaged with the concave portion 54 a of the cylindrical shaft 54. If each adjustment plate 61 is attached to the cylinder 51 in this way, the surface 62a of the plate portion 62 of the adjustment plate 61 is orthogonal to the air path direction of the cylinder 51 as shown in FIGS. Fully closed state. In other words, the surface 62a of the plate portion 62 of the adjustment plate 61 blocks the air passage of the cylindrical body 51, so that it is fully closed.

このように、調整板６１の軸部６４の軸片６４Ｂ（６４Ｄ）や軸片６４Ｃ（６４Ａ）を筒体５１の凹部５１fに嵌入することで、筒体５１の風路方向に対する調整板６１の板部６２の面６２ａの向きを９０度変えることができる。 Thus, by inserting the shaft piece 64B (64D) and the shaft piece 64C (64A) of the shaft portion 64 of the adjustment plate 61 into the recess 51f of the cylinder body 51, the adjustment plate 61 with respect to the air path direction of the cylinder body 51 is provided. The direction of the surface 62a of the plate part 62 can be changed by 90 degrees.

また、筒体５１を流れる風量を調整するには、調整板６１の板部６２の面６２ａが筒体５１の風路方向と平行となる調整板６１の枚数、すなわち、筒体５１の風路を遮断する調整板６１の数を増減することにより行う。なお、調整板６１の向きを変える場合、筒体５１のフランジ５２に取り付けられているグリル５３を取り外して行う。 In order to adjust the amount of air flowing through the cylinder 51, the number of adjustment plates 61 in which the surface 62 a of the plate portion 62 of the adjustment plate 61 is parallel to the air path direction of the cylinder 51, that is, the air path of the cylinder 51. This is done by increasing / decreasing the number of adjustment plates 61 that block the above. In addition, when changing the direction of the adjustment plate 61, the grille 53 attached to the flange 52 of the cylindrical body 51 is removed.

ところで、軸片６４Ｃは直方体で角部を有し、筒体５１の凹部５１fも角部を有しているので、調整板６１は凹部５４ａ,５１f内で軸部６３,６４回りに回転してしまうことが防止されるので、風圧によって向きが変わってしまうことがない。 By the way, since the shaft piece 64C is a rectangular parallelepiped and has a corner portion, and the concave portion 51f of the cylindrical body 51 also has a corner portion, the adjustment plate 61 rotates around the shaft portions 63 and 64 in the concave portions 54a and 51f. Therefore, the direction does not change due to wind pressure.

各調整板６１は、平板状の板部６２に軸部６３,６４を設けたものであるから、アンダーカット部がなく、このため、各調整板６１を射出成形する金型をスライド構造にする必要がなく、調整板６１は安価なものとなり、換気グリル装置５０は安価なものとなる。さらに、各調整板６１は同一形状で同一大きさなので、調整板６１を射出成形する金型は１つでよく、このため、さらに調整板６１は安価なものとなり、換気グリル装置５０はさらに安価なものとなる。 Since each adjustment plate 61 is provided with shaft portions 63 and 64 on a flat plate portion 62, there is no undercut portion. Therefore, a mold for injection molding each adjustment plate 61 has a slide structure. There is no need, and the adjustment plate 61 is inexpensive, and the ventilation grill device 50 is inexpensive. Furthermore, since each adjusting plate 61 has the same shape and the same size, only one mold for injection-molding the adjusting plate 61 is required. Therefore, the adjusting plate 61 is further inexpensive, and the ventilation grill device 50 is further inexpensive. It will be something.

また、各調整板６１を軸回りに回動させる回動構造を設けていないので、換気グリル装置５０の構造は至って簡単である。 In addition, since the rotating structure for rotating each adjusting plate 61 about the axis is not provided, the structure of the ventilation grill device 50 is very simple.

この第２実施形態では、調整板６１の軸部６４に角部を設け、筒体５１の凹部５１fに角部を設けて調整板６１の回転の防止を図っているが、調整板６１の軸部６３に角部を設け、筒軸５４の凹部５４ａに角部を設けて調整板６１の回転の防止を図ってもよく、その軸部６３,６４の両方に角部を設け、両方の凹部５４ａ,５１fに角部を設けて回転の防止を図ってもよい。
［他の例］
図２４ないし図２６は他の例の調整板７１を示したものである。調整板７１は、平板状の板部７２と、この板部７２の一端に設けた軸部７３と、板部７２の他端に設けた軸部７４と、この軸部７４に設けた係止部７５とを有している。係止部７５は、６つのＶ字状の突起７５Ａ〜７５Ｆを有し、各突起７５Ａ〜７５Ｆは６０度毎に等間隔に軸部７４の周方向に沿って設けられている。 In the second embodiment, a corner portion is provided in the shaft portion 64 of the adjustment plate 61 and a corner portion is provided in the concave portion 51f of the cylindrical body 51 to prevent the adjustment plate 61 from rotating. The corner 63 may be provided with a corner and the recess 54a of the cylindrical shaft 54 may be provided with a corner to prevent the adjustment plate 61 from rotating. Corners may be provided at 54a and 51f to prevent rotation.
[Other examples]
24 to 26 show another example of the adjustment plate 71. The adjustment plate 71 includes a flat plate portion 72, a shaft portion 73 provided at one end of the plate portion 72, a shaft portion 74 provided at the other end of the plate portion 72, and a locking provided on the shaft portion 74. Part 75. The locking part 75 has six V-shaped protrusions 75A to 75F, and the protrusions 75A to 75F are provided along the circumferential direction of the shaft part 74 at equal intervals every 60 degrees.

他方、筒体５１には、凹部５１fの替わりにＶ字状の凹部５１g（図２７参照）を設けておく。そして、図２７に示すように、調整板７１の係止部７５の突起７５Ｄを筒体５１の凹部５１gに係合させれば、調整板７１の板部７２が段差面５１Ｅに対して垂直、すなわち筒体５１の風路方向と平行となり、換気グリル装置５０を全開にすることができる。なお、調整板７１の軸部７３は筒軸５４の凹部５４ａに係合させる。 On the other hand, the cylindrical body 51 is provided with a V-shaped recess 51g (see FIG. 27) instead of the recess 51f. As shown in FIG. 27, when the protrusion 75D of the locking portion 75 of the adjustment plate 71 is engaged with the recess 51g of the cylindrical body 51, the plate portion 72 of the adjustment plate 71 is perpendicular to the step surface 51E. That is, it becomes parallel to the wind path direction of the cylinder 51, and the ventilation grill device 50 can be fully opened. The shaft portion 73 of the adjustment plate 71 is engaged with the concave portion 54 a of the cylindrical shaft 54.

また、図２８および図２９に示すように、調整板７１の係止部７５の突起７５Ｃ,７５Ｅを筒体５１の凹部５１gに係合させれば、調整板７１の板部７２の向きを調整することができるので、筒体５１を流れる風量を調整することができる。
［第３実施例］
図３０ないし図３２は、第３実施形態の換気グリル装置８０を示したものである。この換気グリル装置８０は、前端および後端が開口されるとともに風路を形成した樹脂製の筒体８１と、この筒体８１内に設けられた風量調整機構（風量調整手段）１００とを備えている。
［筒体８１］
筒体８１は、図３３ないし図３５に示すように、前端側（図３４および図３５において左側）にいくにしたがって径が大きくなるラッパ状のラッパ部８２と、このラッパ部８２の後部に一体形成された筒状の大径筒部８３と、この大径筒部８３の後部に一体形成されるとともにこの大径筒部８３の径より小さい径の小径筒部８４とを有している。小径筒部８４は、第１実施形態と同様にアタッチメント２４（図３参照）を介して換気装置(図示せず)に接続された図示しないダクトに接続されるようになっている。 As shown in FIGS. 28 and 29, if the projections 75C and 75E of the locking portion 75 of the adjustment plate 71 are engaged with the recess 51g of the cylindrical body 51, the orientation of the plate portion 72 of the adjustment plate 71 is adjusted. Therefore, the air volume flowing through the cylinder 51 can be adjusted.
[Third embodiment]
30 to 32 show a ventilation grill device 80 of the third embodiment. The ventilation grill device 80 includes a resin-made cylinder 81 having an opening at the front end and a rear end and an air passage, and an air volume adjusting mechanism (air volume adjusting means) 100 provided in the cylinder 81. ing.
[Cylinder 81]
As shown in FIGS. 33 to 35, the cylindrical body 81 is integrally formed with a trumpet-shaped trumpet portion 82 whose diameter increases toward the front end side (left side in FIGS. 34 and 35) and a rear portion of the trumpet portion 82. A cylindrical large-diameter cylindrical portion 83 is formed, and a small-diameter cylindrical portion 84 is formed integrally with the rear portion of the large-diameter cylindrical portion 83 and has a diameter smaller than the diameter of the large-diameter cylindrical portion 83. The small diameter cylindrical portion 84 is connected to a duct (not shown) connected to a ventilator (not shown) via the attachment 24 (see FIG. 3) as in the first embodiment.

ラッパ部８２の前端には室内の壁や天井壁等の表側に取り付けるための方形状のフランジ８６が一体形成され、このフランジ８６には図示しないグリルが着脱可能に装着されるようになっている。また、ラッパ部８２内の中心部には小径の軸部８７と、この軸部８７に一体形成されるとともにこの軸部８７より径の大きい大径の軸部８８とが配置され、さらに大径筒部８３内の中心部には筒状の筒軸８９が配置されている。この筒軸８９は大径筒部８３および小径筒部８４の内周壁から中心に向かって延びた支持アーム９０により支持され、軸８８は筒軸８９の内周壁から中心に向かって延びた支持アーム９１により支持されている。 At the front end of the trumpet portion 82, a rectangular flange 86 is integrally formed for attachment to the front side of the indoor wall or ceiling wall, and a grill (not shown) is detachably mounted on the flange 86. . In addition, a small-diameter shaft portion 87 and a large-diameter shaft portion 88 that is integrally formed with the shaft portion 87 and has a larger diameter than the shaft portion 87 are disposed at the center portion in the trumpet portion 82, and further has a large diameter. A cylindrical tube shaft 89 is disposed at the center of the tube portion 83. The cylindrical shaft 89 is supported by a support arm 90 extending from the inner peripheral wall of the large-diameter cylindrical portion 83 and the small-diameter cylindrical portion 84 toward the center, and the shaft 88 is extended from the inner peripheral wall of the cylindrical shaft 89 toward the center. 91.

筒軸８９の周壁の端部（図３２および図３３において上面側）には所定間隔毎に１０個の貫通孔８９ａが形成されている。また、ラッパ部８２の内周壁の後部には、筒軸８９の貫通孔８９ａから径方向に延びた位置に凹部８２ａがそれぞれ形成されている。
［風量調整機構１００］
風量調整機構１００は、図３１および図３２に示すように複数の調整板１０１と、調整リング１１０等とから構成されている。
［調整板１０１］
各調整板１０１は、図３６ないし図３８に示すように、ほぼ扇形状をした平板状の板部１０２と、この板部１０２の一端に設けた軸部１０３と、板部１０２の他端（周端）に設けたギア１０４と、ギア１０４の中心部に設けた軸部１０５とを有している。そして、調整板１０１の軸部１０３は図３１に示すように筒体８１の筒軸８９の貫通孔８９ａに回動自在に挿入され、調整板１０１の軸部１０５は筒体８１のラッパ部８２の凹部８２ａに回動自在に係合されている。各調整板１０１は同じ大きさの同一形状に形成されている。 Ten through holes 89a are formed at predetermined intervals at the end of the peripheral wall of the cylindrical shaft 89 (on the upper surface side in FIGS. 32 and 33). Further, in the rear portion of the inner peripheral wall of the trumpet portion 82, a recess 82a is formed at a position extending in the radial direction from the through hole 89a of the cylindrical shaft 89, respectively.
[Airflow adjustment mechanism 100]
As shown in FIGS. 31 and 32, the air volume adjusting mechanism 100 includes a plurality of adjusting plates 101, an adjusting ring 110, and the like.
[Adjustment plate 101]
As shown in FIGS. 36 to 38, each adjustment plate 101 includes a substantially fan-shaped flat plate portion 102, a shaft portion 103 provided at one end of the plate portion 102, and the other end of the plate portion 102 ( (Gear end) and a shaft portion 105 provided at the center of the gear 104. As shown in FIG. 31, the shaft portion 103 of the adjustment plate 101 is rotatably inserted into a through hole 89 a of the tube shaft 89 of the cylinder 81, and the shaft portion 105 of the adjustment plate 101 is a trumpet portion 82 of the cylinder 81. The recess 82a is rotatably engaged. Each adjustment plate 101 is formed in the same shape with the same size.

そして、各調整板１０１は、筒体８１のラッパ部８２と筒軸８９との間に径方向に沿って放射状に配置されているとともに、径方向の軸線回りである軸部１０３,１０５回りに回動可能に筒体８１のラッパ部８２および筒軸８９に取り付けられている。
［調整リング１１０］
調整リング１１０は、図３９ないし図４１に示すように、リング１１１と、このリング１１１の中心部に設けられた円形の軸受部１１２とを有し、軸受部１１２はリング１１１の内周面から中心に向かって延びた支持部１１３により支持されている。リング１１１の下面１１１ａ（図４０において）には、図４１に示すようにリング１１１に沿ってリング状のギア部１１５が形成されている。 The adjustment plates 101 are arranged radially between the trumpet portion 82 of the cylinder 81 and the cylinder shaft 89 along the radial direction, and around the shaft parts 103 and 105 around the radial axis. It is attached to the trumpet portion 82 of the cylinder 81 and the cylinder shaft 89 so as to be rotatable.
[Adjustment ring 110]
39 to 41, the adjustment ring 110 includes a ring 111 and a circular bearing portion 112 provided at the center of the ring 111, and the bearing portion 112 extends from the inner peripheral surface of the ring 111. It is supported by a support portion 113 extending toward the center. On the lower surface 111a (in FIG. 40) of the ring 111, a ring-shaped gear portion 115 is formed along the ring 111 as shown in FIG.

また、軸受部１１２には、貫通孔１１４が形成され、貫通孔１１４は下側（図４０において）に大径の孔部１１４Ａと上側に小径の孔部１１４Ｂとを有している。この貫通孔１１４の孔部１１４Ａには、図３１に示すように、筒体８１の軸部８８が回動自在に嵌入され、貫通孔１１４の孔部１１４Ｂには筒体８１の軸部８７が回動自在に嵌入されている。そして、調整リング１１０は、筒体８１の軸部８７,８８回りに回動可能となっているとともに、調整リング１１０のギア部１１５が各調整板１０１のギア１０４に噛合しており、調整リング１１０の回動によって各調整板１０１が軸部１０３,１０５回りに回動するようになっている。 The bearing portion 112 is formed with a through hole 114, and the through hole 114 has a large diameter hole portion 114A on the lower side (in FIG. 40) and a small diameter hole portion 114B on the upper side. As shown in FIG. 31, the shaft portion 88 of the cylindrical body 81 is rotatably fitted in the hole portion 114 A of the through hole 114, and the shaft portion 87 of the cylindrical body 81 is inserted in the hole portion 114 B of the through hole 114. It is inserted so that it can rotate freely. The adjustment ring 110 is rotatable around the shaft portions 87 and 88 of the cylinder 81, and the gear portion 115 of the adjustment ring 110 is engaged with the gear 104 of each adjustment plate 101. Each adjustment plate 101 is rotated about the shaft portions 103 and 105 by the rotation of 110.

そして、各調整板１０１に設けたギア１０４と、調整リング１１０とで各調整板１０１を軸部８７,８８回りに回動させる回動調整機構（回動調整手段）が構成されている。
［動作］
次に、上記のように構成される換気グリル装置８０の動作について説明する。 The gear 104 provided on each adjustment plate 101 and the adjustment ring 110 constitute a rotation adjustment mechanism (rotation adjustment means) that rotates each adjustment plate 101 about the shaft portions 87 and 88.
[Operation]
Next, the operation of the ventilation grill device 80 configured as described above will be described.

各調整板１０１の向き、すなわち調整板１０１の板部１０２の向きが図３０および図３１に示すように筒体８１の風路方向と平行になっていて全開しているものとする。この状態から筒体８０の風路の開度を調整するには、先ず筒体８１のフランジ８６に取り付けられている図示しないグリルを外す。 It is assumed that the direction of each adjustment plate 101, that is, the direction of the plate portion 102 of the adjustment plate 101 is parallel to the air path direction of the cylinder 81 and is fully opened as shown in FIGS. In order to adjust the opening degree of the air passage of the cylinder 80 from this state, the grill (not shown) attached to the flange 86 of the cylinder 81 is first removed.

次に、調整リング１１０を筒体８１の軸部８７,８８回りに回動させていく。この調整リング１１０のギア部１１５に調整板１０１のギア１０４が噛合していることにより、調整リング１１０の回動とともに各調整板１０１はその軸部１０３,１０５回りに回動していき、各調整板１０１は筒体８１の風路方向に対して傾斜していく。すなわち、各調整板１０１の板部１０２は、筒体８１の風路方向に対向する方向に向いていき、筒体８１の風路は閉成されていく。 Next, the adjustment ring 110 is rotated around the shaft portions 87 and 88 of the cylinder 81. Since the gear 104 of the adjustment plate 101 is engaged with the gear portion 115 of the adjustment ring 110, each adjustment plate 101 rotates around its shaft portions 103 and 105 as the adjustment ring 110 rotates. The adjustment plate 101 is inclined with respect to the air path direction of the cylinder 81. That is, the plate portion 102 of each adjustment plate 101 is directed in a direction opposite to the air path direction of the cylinder 81, and the air path of the cylinder 81 is closed.

さらに、調整リング１１０を回動していくと、図４２および図４３に示すように、各調整板１０１は筒体８１の風路方向に対して直交する向きとなる。すなわち、各調整板１０１の板部１０２が筒体８１の風路方向に対して直交する向きとなり、筒体８１の風路は全閉される。 Further, when the adjustment ring 110 is rotated, each adjustment plate 101 is oriented in a direction orthogonal to the air path direction of the cylindrical body 81 as shown in FIGS. That is, the plate portion 102 of each adjustment plate 101 is in a direction orthogonal to the air path direction of the cylinder 81, and the air path of the cylinder 81 is fully closed.

このように、調整リング１１０の回動により各調整板１０１の向き、すなわち各調整板１０１の板部１０２の向きが変わるので、筒体８１の風路に流れる空気の風量を調整することができる。 As described above, the rotation of the adjustment ring 110 changes the direction of each adjustment plate 101, that is, the direction of the plate portion 102 of each adjustment plate 101, so that it is possible to adjust the amount of air flowing through the air path of the cylinder 81. .

各調整板１０１は、平板状の板部１０２に軸部１０３とギア１０４とを設け、このギア１０４に軸部１０５を設けたものであるから、アンダーカット部がなく、このため、各調整板１０１を射出成形する金型をスライド構造にする必要がなく、調整板１０１は安価なものとなり、換気グリル装置８０は安価なものとなる。さらに、各調整板１０１は同一形状で同一大きさなので、調整板１０１を射出成形する金型は１つでよく、このため、さらに調整板１０１は安価なものとなり、換気グリル装置８０はさらに安価なものとなる。 Each adjustment plate 101 has a flat plate portion 102 provided with a shaft portion 103 and a gear 104, and this gear 104 is provided with a shaft portion 105. Therefore, there is no undercut portion. The mold for injection molding 101 does not need to have a slide structure, the adjustment plate 101 is inexpensive, and the ventilation grill device 80 is inexpensive. Further, since each adjusting plate 101 has the same shape and the same size, only one mold for injection molding the adjusting plate 101 is required. Therefore, the adjusting plate 101 is further inexpensive, and the ventilation grill device 80 is further inexpensive. It will be something.

また、各調整板１０１にギア１０４を設け、このギア１０４に調整リング１１０のギア部１１５を噛合させるとともに、調整リング１１０を筒体８１の軸部８７,８８に回動可能に装着したものであるから、その構造は簡単なものである。 Each adjustment plate 101 is provided with a gear 104, and the gear 104 of the adjustment ring 110 is engaged with the gear 104, and the adjustment ring 110 is rotatably attached to the shaft portions 87 and 88 of the cylinder 81. Because there is, the structure is simple.

この発明に係る換気グリル装置を示した斜視図である。It is the perspective view which showed the ventilation grill apparatus which concerns on this invention. 図１の換気グリル装置の平面図である。It is a top view of the ventilation grill apparatus of FIG. 図１の換気グリル装置の構成を示した分解斜視図である。It is the disassembled perspective view which showed the structure of the ventilation grill apparatus of FIG. グリルを取り外した換気グリル装置を示した斜視図である。It is the perspective view which showed the ventilation grill apparatus which removed the grill. 図４に示す換気グリル装置の断面図である。It is sectional drawing of the ventilation grill apparatus shown in FIG. （Ａ）２枚重ねられた調整板を示した平面図である。(A) It is the top view which showed the adjustment board piled up two sheets.

（Ｂ）図１６（Ａ）の右側面図である。
（Ａ）２枚重ねられた調整板を広げた状態を示した平面図である。 (B) It is a right view of FIG. 16 (A).
(A) It is the top view which showed the state which unfolded the adjustment board piled up two sheets.

（Ｂ）図７（Ａ）の右側面図である。
調整板と回転ツマミを示した斜視図である。各調整板を重ねた状態を示した側面図である。重ねられた調整板の一部を広げた状態を示した側面図である。グリルを取り外して調整板を全閉した状態を示したグリル装置の正面図である。第２実施例の換気グリル装置を示した正面図である。図１２の換気グリル装置のグリルを取り外した斜視図である。図１３の換気グリル装置の調整板を全閉にした状態を示した斜視図である。図１４に示す換気グリル装置の断面図である。図１４の換気グリル装置の筒体を示した正面図である。図１６に示す筒体の構成を示した断面図である。図１６に示す筒体の斜視図である。筒体の一部を拡大した部分拡大図である。第２実施例の調整板を示した斜視図である。図２０の調整板を違う角度から見た斜視図である。筒体の風路を全開にする調整板の取り付け方を示した説明図である。筒体の風路を全閉にする調整板の取り付け方を示した説明図である。他の例の調整板を示した平面図である。図２４の調整板の左側面図である。図２４の調整板の正面図である。筒体の風路を全開にする調整板の取り付け方を示した説明図である。調整板を左側に傾けた状態を示した説明図である。調整板を右側に傾けた状態を示した説明図である。第３実施例の換気グリル装置を示した正面図である。グリルを取り外した換気グリル装置の構成を示した断面図である。図３１に示す換気グリル装置を分解した斜視図である。図３２の換気グリル装置の筒体を示した正面図である。図３３に示す筒体のＡ−Ａ線に沿う断面図である。図３３に示す筒体のＢ−Ｂ線に沿う断面図である。第３実施例の調整板を示した平面図である。図３６に示す調整板の左側面図である。図３６に示す調整板の正面図である。調整リングを示した平面図である。図３９に示す調整リングの断面図である。図３９に示す調整リングの底面図である。グリルを取り外して調整板を全閉した状態を示したグリル装置の正面図である。図４２に示すグリル装置の断面図である。従来の換気グリル装置の一部を示した斜視図である。従来の換気グリル装置の構成を示した断面図である。 (B) It is a right view of FIG. 7 (A).
It is the perspective view which showed the adjustment board and the rotary knob. It is the side view which showed the state which accumulated each adjustment board. It is the side view which showed the state which expanded a part of the piled adjustment board. It is a front view of the grill device which showed the state where the grill was removed and the adjustment plate was fully closed. It is the front view which showed the ventilation grill apparatus of 2nd Example. It is the perspective view which removed the grill of the ventilation grill device of FIG. It is the perspective view which showed the state which made the adjustment plate of the ventilation grill apparatus of FIG. 13 fully closed. It is sectional drawing of the ventilation grill apparatus shown in FIG. It is the front view which showed the cylinder of the ventilation grill apparatus of FIG. It is sectional drawing which showed the structure of the cylinder shown in FIG. It is a perspective view of the cylinder shown in FIG. It is the elements on larger scale which expanded a part of cylinder. It is the perspective view which showed the adjustment board of 2nd Example. It is the perspective view which looked at the adjustment board of FIG. 20 from a different angle. It is explanatory drawing which showed the attachment method of the adjustment board which fully opens the wind path of a cylinder. It is explanatory drawing which showed the attachment method of the adjustment board which makes the wind path of a cylinder full close. It is the top view which showed the adjustment board of the other example. It is a left view of the adjustment board of FIG. It is a front view of the adjustment board of FIG. It is explanatory drawing which showed the attachment method of the adjustment board which fully opens the wind path of a cylinder. It is explanatory drawing which showed the state which inclined the adjustment board to the left side. It is explanatory drawing which showed the state which inclined the adjustment board to the right side. It is the front view which showed the ventilation grill apparatus of 3rd Example. It is sectional drawing which showed the structure of the ventilation grill apparatus which removed the grill. FIG. 32 is an exploded perspective view of the ventilation grill device shown in FIG. 31. It is the front view which showed the cylinder of the ventilation grill apparatus of FIG. It is sectional drawing which follows the AA line of the cylinder shown in FIG. It is sectional drawing which follows the BB line of the cylinder shown in FIG. It is the top view which showed the adjustment board of 3rd Example. FIG. 37 is a left side view of the adjustment plate shown in FIG. 36. FIG. 37 is a front view of the adjustment plate shown in FIG. 36. It is the top view which showed the adjustment ring. FIG. 40 is a cross-sectional view of the adjustment ring shown in FIG. 39. FIG. 40 is a bottom view of the adjustment ring shown in FIG. 39. It is a front view of the grill device which showed the state where the grill was removed and the adjustment plate was fully closed. It is sectional drawing of the grill apparatus shown in FIG. It is the perspective view which showed a part of conventional ventilation grill apparatus. It is sectional drawing which showed the structure of the conventional ventilation grill apparatus.

Explanation of symbols

２０換気グリル装置
２１筒体
２６軸部
３０風量調整機構（風量調整手段）
３１調整板（第１調整板）
３２〜３５調整板 20 Ventilation grill device 21 Cylinder 26 Shaft 30 Air volume adjustment mechanism (air volume adjustment means)
31 Adjustment plate (first adjustment plate)
32-35 adjustment plate

Claims

A cylindrical body having an opening at the front end and a rear end thereof, and an air volume adjusting means that is provided in the cylindrical body and adjusts an air volume of air passing through the cylindrical body, and the air volume adjusting means is provided at a central portion of the cylindrical body. A shaft portion provided, and a plurality of fan-shaped adjustment plates that are rotatably provided on the shaft portion and are stacked from the front end side toward the rear end and for blocking the air passage of the cylindrical body. When the first adjustment plate arranged on the foremost end side is rotated, every time the first adjustment plate rotates by a predetermined angle, the adjustment plate on the rear side of the first adjustment plate is in turn from the front. A ventilation grill device that rotates together with the first adjustment plate to increase the blocking area for blocking the air passage, and decreases the blocking area when the first adjustment plate is rotated in the reverse direction,
Each adjusting plate has an engaging portion and a locking portion,
The engaging portion protrudes in a radial direction from one end of the peripheral surface of the adjustment plate,
The locking portion protrudes in the radial direction from the other end of the peripheral surface of the adjustment plate and protrudes in the axial direction of the cylindrical body,
When the front adjustment plate arranged in front of the adjustment plate rotates by a predetermined angle, the engagement portion of the adjustment plate engages with the locking portion of the front adjustment plate, and the adjustment plate rotates together with the front adjustment plate. When the adjusting plate is rotated by a predetermined angle, the engaging portion of the adjusting plate is engaged with the engaging portion of the adjusting plate disposed behind the adjusting plate, and the adjusting plate is moved together with the adjusting plate. A ventilation grill device characterized by rotating.

A rotary knob is rotatably attached to the shaft part,
The rotary knob includes a shaft having a tip end rotatably attached to the shaft hole of the shaft portion and rotatably holding the plurality of adjustment plates, a knob portion provided at a rear portion of the shaft, and the adjustment A protrusion formed on the end face of the knob portion facing the plate,
The first adjustment plate has a locking hole that engages with a protrusion of the knob portion,
2. The ventilation grill device according to claim 1, wherein the first adjustment plate is rotated by engaging the protrusion of the knob portion with the engaging hole of the first adjustment plate and rotating the rotary knob. .

The ventilation grill device according to claim 1 or 2, wherein the small-diameter cylindrical portion and a duct connected to the ventilation device are connected via an attachment.

A ventilation grill device comprising: a cylinder body having a front end and a rear end opened; and an air volume adjusting means that is provided in the cylinder body and adjusts an air volume of air passing through the cylinder body,
Forming the cylindrical body with a large-diameter cylindrical portion and a small-diameter cylindrical portion having a smaller diameter than the large-diameter cylindrical portion;
The air volume adjusting means is provided in the large diameter cylindrical portion,
The air volume adjusting means has a plurality of plate-like adjustment plates arranged radially on a shaft provided in the center of the cylindrical body,
Each adjustment plate is attached to and detached from the large-diameter cylindrical portion in a direction in which the surface opposes the air passage direction of the large-diameter cylindrical portion and blocks the air passage, and in a direction parallel to the air passage direction. A ventilation grill device characterized in that it can be mounted as possible.

A ventilation grill device comprising: a cylinder body having a front end and a rear end opened; and an air volume adjusting means that is provided in the cylinder body and adjusts an air volume of air passing through the cylinder body,
Forming the cylindrical body with a large-diameter cylindrical portion and a small-diameter cylindrical portion having a smaller diameter than the large-diameter cylindrical portion;
The air volume adjusting means is provided in the large diameter cylindrical portion,
The air volume adjusting means has a plurality of adjusting plates arranged radially on a shaft portion provided at a central portion of the cylindrical body,
Each adjustment plate has a flat plate portion, a first support shaft provided at one end of the plate portion, and a second support shaft provided at the other end of the plate portion,
A plurality of first recesses, which are detachably engaged with the first support shafts of the respective adjustment plates, are provided in the circumferential wall of the cylindrical body along the circumferential direction,
A plurality of second recesses that are detachably engaged with the second support shafts of the respective adjustment plates are provided in the shaft portion along the circumferential direction,
Each adjustment plate is rotated by a predetermined angle around the first and second support shafts to change the direction of the plate portion of the adjustment plate, and the first and second support shafts are engaged with the first and second recesses. In this case, one of the first and second spindles is fixed to the corresponding first recess or second recess with respect to the axis,
The direction of the plate portion of the adjusting plate is changed between a direction in which the plate portion opposes the air passage direction of the large-diameter cylindrical portion and blocks the air passage, and a direction parallel to the air passage direction. A ventilation grill device characterized by that.