Title:
ENTRANCE DOOR DEVICE
Document Type and Number:
Japanese Patent JP2023048277
Kind Code:
A
Abstract:
To provide an entrance door device capable of achieving both crime prevention and maintainability while maintaining hanging workability.SOLUTION: The hinge includes a temporary hanging member for temporarily hanging a door body by receiving a lower end of a shaft member passed through an upper shaft hole of a door body side hinge member. The temporary hanging member includes a cylindrical wall portion projecting upward, a notch portion provided in a part of the cylindrical wall portion and capable of laterally inserting the lower end of the shaft member into an inner side of the cylindrical wall portion, and a longitudinal groove provided in an inner surface of the cylindrical wall portion along the longitudinal direction and allowing the shaft member to be inserted into and removed from a lower shaft hole when a first protrusion is engaged. A width of the longitudinal groove along a circumferential direction of the cylindrical wall portion is formed to be larger than the width of the first protrusion along a circumferential direction of the shaft member so that the first protrusion can be engaged within a predetermined angular range along the opening/closing direction of the door body.SELECTED DRAWING: Figure 8
Inventors:
MURAOKA KAZUYA
HAYASHI KOICHI
HAYASHI KOICHI
Application Number:
JP2021157487A
Publication Date:
April 07, 2023
Filing Date:
September 28, 2021
Export Citation:
Assignee:
LIXIL CORP
NISHIMURA CO LTD
NISHIMURA CO LTD
International Classes:
E05D7/10; E05D5/04; E06B3/00
Attorney, Agent or Firm:
Masayuki Masabayashi
Tetsuo Shiba
Mitsuru Iwaike
Hiroaki Hoshino
Tetsuo Shiba
Mitsuru Iwaike
Hiroaki Hoshino
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