Title:
HINGE DEVICE WITHSTANDING HIGH LOAD, AND FIRE DOOR STRUCTURE PROVIDED WITH THE SAME
Document Type and Number:
Japanese Patent JP2016075034
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To develop a hinge device withstanding a high load and a fire door structure provided with the same, for meeting practical requirements such as: securing sufficient strength so that the hinge device may be applied to a fire door required to withstand a high load; preventing a hinge member from being exposed when the door is closed; and keeping a configuration thereof simple, thereby offering a secondary effect of facilitating installation work.SOLUTION: A hinge device withstanding a high load includes a frame-side hinge plate 2, a relay hinge plate 3, and a door-side hinge plate 4. The relay hinge plate 3 and the door-side hinge plate 4 are pivotally rotated so as to realize a shifted-and-protruded state of the relay hinge plate 3 outside of the frame on a shifted hinge pin 6 side, and a half-rotation-allowed state for the door-side hinge plate 4.SELECTED DRAWING: Figure 1
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Inventors:
KOSUGI TETSUO
Application Number:
JP2014204288A
Publication Date:
May 12, 2016
Filing Date:
October 02, 2014
Export Citation:
Assignee:
KOSUGI TETSUO
International Classes:
E05D7/085; A62C2/06; E06B5/16
Attorney, Agent or Firm:
Takahiko Higashiyama