Title:
CLEAN ELEVATOR
Document Type and Number:
Japanese Patent JP3388458
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To achieve a high level cleanliness factor as well as to make this high cleanliness factor maintainable even at the time when an elevator goes up or down by forming such a down flow as having a uniform air-current distribution in the elevator.
SOLUTION: A structure in a car 6 is formed into a down-flow system that makes clean air be blown out of the whole ceiling and simultaneously be inhaled from the whole floor, counterbalancing it into a uniform air-flow distribution, therefore any deviation in an air current and a stagnation area due to inequality will in no case occur, so that a high cleanliness factor is made so as to be maintainable in design. Accordingly, in a secondary an air charging chamber 9a, an air velocity between both lower parts of a discharge port 10 and a filter 11 is varied, so that an opening factor of a vent hole in the central part of a ceiling member 7 is made to be larger than the outer boundary, whereby a uniform blow-off air flow out of this ceiling member 7 is made to be formable. In addition, in order to get rid of any deviation in the air flow to be produced by what a return air port 16 is at one side of an underfloor, the opening factor in the vent hole of an floor member 12 is made to be larger in proportion as being far from return air port 16.
Inventors:
Hiroshi Harada
Application Number:
JP18414795A
Publication Date:
March 24, 2003
Filing Date:
July 20, 1995
Export Citation:
Assignee:
Shimizu Construction Co., Ltd.
International Classes:
B66B9/00; B66B11/02; B66B13/30; F24F7/06; (IPC1-7): B66B11/02; B66B9/00; B66B13/30; F24F7/06
Domestic Patent References:
| JP62240284A | ||||
| JP6263363A | ||||
| JP5155563A | ||||
| JP53166265U |
Attorney, Agent or Firm:
Yoshinori Yanagita (8 outside)