JPS591757U

JPS591757U - manhole cover

Info

Publication number: JPS591757U
Application number: JP9431882U
Authority: JP
Inventors: 福井　甚之助
Original assignee: Individual
Current assignee: Individual
Priority date: 1982-06-22
Filing date: 1982-06-22
Publication date: 1984-01-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案蓋の平面図で右半部は表面部を左半部
は底面部を示し表面部は一部の排水孔のみを示し、第２
図は第１図Ａ−Ａ’矢視断面図、第３図は第１図Ｂ−Ｂ
’矢視拡大断面図、第４図は第３図ｃ−ｃ’矢視断面薗
。図中、ａは蓋、ｂは蓋枠、１は周壁、２はネジ軸、４は
排水孔、５は回動具、６はカバー１，７は保合孔。Figure 1 is a plan view of this devised lid, with the right half showing the surface and the left half showing the bottom.
The figure is a sectional view taken along the line A-A' in Figure 1, and Figure 3 is a sectional view taken along the line B-B in Figure 1.
4 is an enlarged cross-sectional view taken along the line c-c' in FIG. 3. In the figure, a is a lid, b is a lid frame, 1 is a peripheral wall, 2 is a screw shaft, 4 is a drainage hole, 5 is a rotating tool, 6 is a cover 1, and 7 is a retaining hole.

Claims

[Scope of utility model registration request]

(1) The screw shaft 2 screwed into the peripheral wall 1 of the lid a toward the lid frame faces below the drainage hole 4 drilled in the surface wall of the lid 8, and the drainage hole 4 is connected to the screw shaft turning tool. A manhole cover whose cover a is fixed to a cover frame so that it can be inserted.

(2) A utility model registration application in which a cover 6 with a built-in screw shaft 2 is attached to the bottom of the lid a, and the cover 6 is attached to the bottom of the lid a, and the screw shaft 2 is screwed into the peripheral wall below the drain hole 4, and the screw shaft 2 is screwed into the peripheral wall, and the cover 6 is filled with oil. Manhole covers described in scope item (1).