JPH02109958U - - Google Patents
Info
- Publication number
- JPH02109958U JPH02109958U JP1774689U JP1774689U JPH02109958U JP H02109958 U JPH02109958 U JP H02109958U JP 1774689 U JP1774689 U JP 1774689U JP 1774689 U JP1774689 U JP 1774689U JP H02109958 U JPH02109958 U JP H02109958U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- blades
- peripheral edge
- shaft
- lowermost
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims 6
- 210000003746 feather Anatomy 0.000 description 2
Landscapes
- Air-Flow Control Members (AREA)
Description
第１図及び第２図は本考案の一実施例の平面図
及び底面図、第３図は第１図―線に於ける断
面図、第４図は本考案の連結状態を示す拡大説明
図、第５図は本考案の使用状態を示す斜視図、第
６図は同羽根の動きを示す為の説明図、第７図は
本考案の他の実施例を示す使用状態の説明図であ
る。
図中、１：羽根、１―ａ：最上部の羽根、１―
ｂ：最下部の羽根、２：軸、３：長穴、４，４′
：連結枢支部、６：支持枠、７：羽根回動用取手
、８：フード。
Figures 1 and 2 are a plan view and a bottom view of an embodiment of the present invention, Figure 3 is a sectional view taken along the line of Figure 1, and Figure 4 is an enlarged explanatory view showing the connected state of the present invention. , FIG. 5 is a perspective view showing the state of use of the present invention, FIG. 6 is an explanatory view showing the movement of the same blade, and FIG. 7 is an explanatory view of the state of use showing another embodiment of the present invention. . In the figure, 1: feather, 1-a: topmost feather, 1-
b: Bottom blade, 2: Shaft, 3: Long hole, 4, 4'
: Connecting pivot, 6: Support frame, 7: Handle for rotating the blade, 8: Hood.
Claims (1)
の中心部に軸を遊嵌状に貫通し各羽根を該軸を中
心に回動自在となし、かつ上記羽根の各々の中央
部分にその径方向に走る長穴を貫設し、又上記羽
根の中で最上部及び最下部の羽根を除く全ての羽
根は互いに隣接羽根との間で、自在に連結枢支さ
れる連結枢支部を上記羽根周縁部両端面にプレス
加工等によつて打ち抜き形成せしめ、最上部の羽
根はその直下の羽根寄り側周縁部端のみを該直下
の羽根の最上部の羽根寄り側周縁端と連結枢支す
ると共に、最下部の羽根はその直上の羽根寄り側
周縁部端のみを該直上の羽根の最下部の羽根寄り
側周縁部端と連結枢支せしめ、更に上記最上部の
羽根の周縁部の所要個所には羽根回動用取手を突
設し、一方最下部の羽根は上記軸を固定支持する
支持枠に対し回動しない状態に固定したことを特
徴とする円形ダクトの風量調整器。 A plurality of blades made of substantially fan-shaped thin plates are stacked one on top of the other, a shaft is loosely inserted through the center of the blades, and each blade is rotatable about the shaft, and a shaft is inserted into the center of each of the blades. The above-mentioned connecting pivot part is provided with an elongated hole running in the radial direction, and all the blades except the uppermost and lowermost blades are freely connected and supported between adjacent blades. Both end faces of the blade's peripheral edge are punched out by press working or the like, and the uppermost blade connects and pivots only the blade-side peripheral edge immediately below it with the uppermost blade-side peripheral edge of the blade directly below. At the same time, only the peripheral edge of the lowermost blade on the side closer to the blade directly above the blade is connected and pivoted to the peripheral edge of the lowermost blade on the side closer to the blade, and furthermore, the peripheral edge of the uppermost blade is connected at required points. A circular duct air volume regulator characterized in that a handle for rotating the blades is provided protruding from the blade, while the lowermost blade is fixed so as not to rotate with respect to a support frame that fixedly supports the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1774689U JPH0725546Y2 (en) | 1989-02-16 | 1989-02-16 | Air flow controller for circular duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1774689U JPH0725546Y2 (en) | 1989-02-16 | 1989-02-16 | Air flow controller for circular duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02109958U true JPH02109958U (en) | 1990-09-03 |
| JPH0725546Y2 JPH0725546Y2 (en) | 1995-06-07 |
Family
ID=31231804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1774689U Expired - Lifetime JPH0725546Y2 (en) | 1989-02-16 | 1989-02-16 | Air flow controller for circular duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725546Y2 (en) |
-
1989
- 1989-02-16 JP JP1774689U patent/JPH0725546Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725546Y2 (en) | 1995-06-07 |
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