Title:
開き扉
Document Type and Number:
Japanese Patent JP7064377
Kind Code:
B2
Abstract:
To provide a door which can be usually used as an ordinary door openable entirely, meanwhile, under a differential pressure, can be entirely opened after eliminating the differential pressure.SOLUTION: A door comprises a door body rotatably supported by a door frame 2, a differential-pressure door 5 rotatably supported by the door body to eliminate a differential pressure, a first latch 11 to fasten a door 1 to the door frame 2, a second latch to fasten the differential-pressure door 5 to the door body, a doorknob 13 rotatably operated, and a transmission mechanism transmitting a rotation of the doorknob 13 to the first latch 11 and the second latch to release the first latch 11 and the second latch. Following a first operation of the doorknob 13, the transmission mechanism releases the first latch 11 while holding the second latch locked. Following a second operation of the doorknob 13, the transmission mechanism releases both of the first latch 11 and the second latch.SELECTED DRAWING: Figure 4
Inventors:
Shoji Takahashi
Application Number:
JP2018096376A
Publication Date:
May 10, 2022
Filing Date:
May 18, 2018
Export Citation:
Assignee:
Ryobi Co., Ltd.
International Classes:
E06B7/32; E05C1/16; E05C9/04; E05C9/14; E05C21/00; E06B5/16
Domestic Patent References:
| JP62007565U | ||||
| JP7259407A | ||||
| JP2010174502A | ||||
| JP2018199976A |
Foreign References:
| US20150121761 |
Attorney, Agent or Firm:
Tokuya Iwata
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