Title:
INSPECTION PORT
Document Type and Number:
Japanese Patent JP2023110650
Kind Code:
A
Abstract:
To provide an inspection port in which a structure of a member interposed between an outer frame and an inner frame is further simplified while preventing a track at an end portion from turning around to a back face side when an inner frame is opened.SOLUTION: An inspection port comprises: a rectangular outer frame fixed to an opening provided in an installation surface; an inner frame installed inside the outer frame; a pair of hinge members connecting the outer frame with the inner frame and pivotally mounting the inner frame so as to rotate; and a cover member mounted inside the inner frame. The pair of hinge members are mounted in the vicinity of both ends of one side of the outer frame, and each of them includes: a mounted portion fixed in the vicinity of an end of the one side of the outer frame; a connecting portion in which an outer edge of the mounted portion is bent inward; a support portion extending from a front side end of the connecting portion in a front side direction when a side where the inside is opened is a front side and an opposite side to the front side is a rear side with respect to the installation surface; and a rotating shaft connecting the support portion with the inner frame.SELECTED DRAWING: Figure 2
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Inventors:
SHIOZAWA MASANORI
Application Number:
JP2022012232A
Publication Date:
August 09, 2023
Filing Date:
January 28, 2022
Export Citation:
Assignee:
NAKA KOGYO KK
International Classes:
E04F19/08
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office