JPH02108732U - - Google Patents
Info
- Publication number
- JPH02108732U JPH02108732U JP1469189U JP1469189U JPH02108732U JP H02108732 U JPH02108732 U JP H02108732U JP 1469189 U JP1469189 U JP 1469189U JP 1469189 U JP1469189 U JP 1469189U JP H02108732 U JPH02108732 U JP H02108732U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- window
- air supply
- air
- outside
- 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
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Devices For Use In Laboratory Experiments (AREA)
Description
第１図はこの考案の一実施例を示す斜視図、第
２図は従来のドラフトチヤンバの概要を説明する
ための断面図、第３図は従来のドラフトチヤンバ
に用いられている窓開閉時の操作力軽減手段の構
造を説明するための斜視図である。
１０：作業台、２０：チヤンバ、３０：排気装
置、４０：給気装置、４１Ａ，４１Ｂ：給気路、
５０：窓、６０：ダンパ、８０：巻バネ。
Fig. 1 is a perspective view showing an embodiment of this invention, Fig. 2 is a sectional view to explain the outline of a conventional draft chamber, and Fig. 3 is a window opening/closing diagram used in a conventional draft chamber. FIG. 3 is a perspective view for explaining the structure of an operation force reducing means when the operation force is reduced. 10: Workbench, 20: Chamber, 30: Exhaust device, 40: Air supply device, 41A, 41B: Air supply path,
50: window, 60: damper, 80: coiled spring.
Claims (1)
装置と、 Ｃ チヤンバ内に空気を送り込む給気装置と、 Ｄ この給気装置の給気路に設けられ、上記窓の
開窓と連動して給気路を上記窓の外側に切替え、
窓の外側にエアカーテンを形成する切替えを行な
うダンパと、 Ｅ 上記窓を構成する障子に一端が取付けられ、
他端が上記チヤンバの上部に設けられたプーリに
取付けられ、巻込力によつて上記障子に障子の自
重よりわずかに小さい巻上げ力を与える巻バネと
、 によつて構成したドラフトチヤンバ。[Scope of Claim for Utility Model Registration] A: A chamber with a raised/lowered window on the front; B: An exhaust device that exhausts the air inside this chamber to the outside; C: An air supply device that sends air into the chamber; D: This air supply. Provided in the air supply path of the device, switching the air supply path to the outside of the window in conjunction with the fenestration of the window,
A damper that performs switching to form an air curtain on the outside of the window;
a coiled spring whose other end is attached to a pulley provided at the upper part of the chamber, and which applies a winding force to the shoji that is slightly smaller than its own weight to the shoji with its winding force;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1469189U JPH0536496Y2 (en) | 1989-02-10 | 1989-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1469189U JPH0536496Y2 (en) | 1989-02-10 | 1989-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02108732U true JPH02108732U (en) | 1990-08-29 |
| JPH0536496Y2 JPH0536496Y2 (en) | 1993-09-16 |
Family
ID=31226119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1469189U Expired - Lifetime JPH0536496Y2 (en) | 1989-02-10 | 1989-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536496Y2 (en) |
-
1989
- 1989-02-10 JP JP1469189U patent/JPH0536496Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0536496Y2 (en) | 1993-09-16 |