Title:
昇降扉
Document Type and Number:
Japanese Patent JP7187877
Kind Code:
B2
Abstract:
To provide a lifting door that can be opened and closed by lifting a door body even when the door body cannot be lifted and lowered by one drive unit.SOLUTION: A lifted door 10 includes a pair of guide rails 11, 11 that is provided vertically for a wall body W in which an opening Wa is formed, and a door body 20 that is provided between the guide rails 11, 11 so that it can be lifted and lowered along the guide rails. The opening Wa is opened and closed by lifting and lowering the door body 20. A door pulley 30 that is a movable pulley is fixed to the door body 20. A pair of fixed pulleys 40, 50 is fixed above the opening Wa in the wall body W. A rope r is wound on the door pulley 30 and the pair of fixed pulleys 40, 50. One end of the rope r is connected to an electric motor M, and the other end of the rope r is connected to a manual handle H. The door body 20 can be lifted and lowered by driving the electric motor M and/or the manual handle H.SELECTED DRAWING: Figure 1
Inventors:
Tsutomu Kasai
Application Number:
JP2018148660A
Publication Date:
December 13, 2022
Filing Date:
August 07, 2018
Export Citation:
Assignee:
Itoki Co., Ltd.
International Classes:
E05F15/686; E05F1/02; E05F11/04
Domestic Patent References:
| JP8004415A | ||||
| JP2009091736A | ||||
| JP61044487U | ||||
| JP11158848A | ||||
| JP2000314268A | ||||
| JP63019681U | ||||
| JP2004278103A | ||||
| JP2015537131A | ||||
| JP2012101915A | ||||
| JP2007230755A | ||||
| JP6348876U |
Attorney, Agent or Firm:
Takao Yanagino
Yoshihide Yanagino
Norio Morioka
Sekiguchi Hisayu
Kiyozo Hori
Yoshihide Yanagino
Norio Morioka
Sekiguchi Hisayu
Kiyozo Hori