Title:
VENTILATION DEVICE FOR DRAFT CHAMBER
Document Type and Number:
Japanese Patent JP3717822
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a draft chamber capable of easily adjusting how an exhausting air duct is closed according to a desire of a user.
SOLUTION: A rotation shaft 14 of a flow adjusting valve 13 runs through a supporting plate 16 fixed to a connection duct 9. An opening detection element 23 is fixed to the rotation shaft 14. A first limit switch 25 for detecting the opening detection element 23 in fully open states is fixed to the supporting plate 16. A second limit switch 26 for detecting the opening detection element 23 in closed states is fixed to the mounting plate 27. The mounting plate 27 is capable of rotating around the rotation shaft 14 and is fixed to the supporting plate 16 by a screw 30 through a long hole 29 in an arc shape. Timing to activate the second limit switch 26 (that is the minimum opening of the connection duct 9) can be adjusted with the opening detecting element 23 by changing the attitude of the mounting plate 27.
Inventors:
Keisuke Yoshimatsu
Application Number:
JP2001302217A
Publication Date:
November 16, 2005
Filing Date:
September 28, 2001
Export Citation:
Assignee:
Itoki Co., Ltd.
International Classes:
F16K24/04; B01L1/00; F24F7/06; (IPC1-7): F24F7/06; B01L1/00; F16K24/04
Domestic Patent References:
| JP8294638A | ||||
| JP9164340A | ||||
| JP60130327U |
Attorney, Agent or Firm:
Akio Ishii
Tadashi Higashino
Hiroyuki Nishi
Tadashi Higashino
Hiroyuki Nishi