Title:
WATERTIGHT MASTER-SLAVE DOOR UNIT
Document Type and Number:
Japanese Patent JP2021185296
Kind Code:
A
Abstract:
To provide a watertight master-slave door unit which is constituted to be relatively easily mounted, enables attachment elements (a mounting fitting and a fixing ring) of a master door to be attached to its wall with sufficient strength, and secures a sufficient sealing performance in spite of a comparatively simple constitution.SOLUTION: For the purpose of attaching a master door 4 having a slave door 5 to a wall part 1 to be openable and closable, the wall part 1 is sandwiched by a collar 22 of a mounting fitting 2 and a fixing ring 3 from a thickness direction, and an inner peripheral edge of the fixing ring 3 is connected to an outer peripheral surface of the mounting fitting 2, so that the mounting fitting 2 and the fixing ring 3 are fixed to the wall part 1. With sealing members 6, 7 sealing a fitting part between the mounting fitting 2 and a penetration hole 1a of the wall part 1, a seal ring 9 for the master door seals between an inner surface of the master door 4 and an outer surface of a protruded slender portion 24 of the mounting fitting 2, and a seal ring 10 for the slave door seals between an inner surface of the slave door 5 and an outer surface of a ring body 4C.SELECTED DRAWING: Figure 1
Inventors:
HARA MASAKI
MAENO KOTA
UEDA SOICHIRO
MAENO KOTA
UEDA SOICHIRO
Application Number:
JP2020090403A
Publication Date:
December 09, 2021
Filing Date:
May 25, 2020
Export Citation:
Assignee:
MITSUBISHI RUBBER
International Classes:
E06B7/32; E06B5/00
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office