Static structures (e.g. – buildings) – Wall – ceiling – or floor designed for utilities
Reexamination Certificate
1999-12-14
2001-11-13
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Wall, ceiling, or floor designed for utilities
C052S205000, C052S206000, C052S207000, C052S210000, C052S211000, C052S204510, C052S208000, C052S204710, C052S204530, C052S762000, C049S504000, C016S225000
Reexamination Certificate
active
06314691
ABSTRACT:
This application is based on patent application No. 10-354952 filed in Japan, the contents of which are hereby incorporated by references.
BACKGROUND OF THE INVENTION
This invention relates to a frame to be mounted at an inspection opening for inspecting a piping arranged inside of an enclosure member defining a wall or ceiling of a house or building.
A known inspection opening frame is disclosed, for example, in Japanese Examined Utility Model Publication No. 2-17075. This frame is provided with a mount plate to be mounted on a mount member such as a backing; a supporting plate projecting from the mount plate by the thickness of a plate member such as a wall plate; a holding portion which is so provided at an end of the supporting plate as to extend in a direction normal thereto, holds the plate member in cooperation with the mount plate at its one end, and is formed with an engaging portion at its other end; and a cover which is continuously and rotatably provided at one end of the holding portion via its hinge, has a locking projection engageable with and disengageable from the engaging portion formed on its surface facing the holding portion, and covers the outer circumferential portion of an inspection opening lid. The inspection opening lid is detachably tightly held between the cover and the mount plate. With this construction, the inspection lid can be attached and detached without using screws.
The inspection lid can be attached and detached without using screws with the inspection opening frame disclosed in the above publication. However, since the mount plate of the inspection opening frame is secured to a wooden backing assembled in advance to have a square shape by screws after the backing is arranged on the rear side of a wall surface on which the inspection opening frame is to be mounted, this operation is disadvantageously cumbersome.
SUMMARY OF THE INVENTION
It is an object of the invention to provide an inspection opening frame which has overcome the problems residing in the prior art.
According to an aspect of the invention, an inspection opening frame is mountable at an inspection opening formed in an enclosure member to hold a lid. The inspection opening frame comprises at least one frame component including: a support portion extending along an inner surface of the inspection opening; a first enclosure member holding portion extending along one surface of the enclosure member and having a part operable to come into contact with the one surface of the enclosure member; a second enclosure member holding portion extending along the opposite surface of the enclosure member and having a part operable to come into contact with the opposite surface of the enclosure member, the second enclosure member holding portion being pivotally supported on the support portion; a first lid holding portion extending along one surface of the lid and having a part operable to come into contact with the one surface of the lid; and a first locking portion for disengageably locking the second enclosure member holding portion.
It may be preferable that the frame component is further provided with a second lid holding portion extending along the opposite surface of the lid and having a part operable to come into contact with the opposite surface of the lid, the second lid holding portion being pivotally supported on the support portion; and a second locking portion for disengageably locking the second lid holding portion.
These and other objects, features and advantages of the present invention will become more apparent upon a reading of the following detailed description and accompanying drawings.
REFERENCES:
patent: 5433054 (1995-07-01), Langenhorst
patent: 59147843 (1984-10-01), None
patent: 0217075 (1990-05-01), None
Kise Kazuhiko
Takagi Kyozaburo
Yagi Shinjiro
Dorsey Dennis L.
Friedman Carl D.
Fukuvi Chemical Industry Co., Ltd
Smith Patent Office
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