| 摘要 |
PROBLEM TO BE SOLVED: To provide a draft chamber the air current in whose workroom is made excellent by preventing the retainment of air in the workroom of the conventional draft chamber. SOLUTION: A raising/lowering door (a sash window) of the draft chamber is inclined as shown in Fig.1(B) of the selected figure and the length of a baffle panel is reduced, so that the air current in the workroom is made excellent as shown in Fig.1. COPYRIGHT: (C)2010,JPO&INPIT |
