JPS5817509U

JPS5817509U - benchmark

Info

Publication number: JPS5817509U
Application number: JP11279981U
Authority: JP
Inventors: 正和福島
Original assignee: 東芝プラント建設株式会社
Priority date: 1981-07-29
Filing date: 1981-07-29
Publication date: 1983-02-03

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図は従来のベンチマークの一部断両立面図、
化２図は本案のベンチマークの一部断両立面図、第３図
は第２図のＡ−Ａ矢視断面図。１・・・・・・マーク基準面、２・・・・・・内ネジ、
３・・間外ネジ、４・・・・・・ボルト取付孔、５・・
開脚用ボルト、６・・・・・・鉄片、７・・・・・・脚
、８・・・・・・コンクリート床面、９・・・・・・凹
部、１０．１４・・・・・・ベンチマーク、１１・・・
・・・上蓋、１２・・・・・・筒形カバー、１３・・・
・・・グラウト剤、１５．１６・・・・・・ナツト、１
７・・・・・・鉄板、１８・・・・・・スペーサ。' Figure 1 is a partial cross-sectional elevation view of a conventional benchmark;
Figure 2 is a partial cross-sectional elevation view of the benchmark of this project, and Figure 3 is a sectional view taken along the line A-A in Figure 2. 1... Mark reference surface, 2... Internal thread,
3... Outer screw, 4... Bolt mounting hole, 5...
Leg opening bolt, 6... Iron piece, 7... Leg, 8... Concrete floor surface, 9... Concavity, 10.14... ...Benchmark, 11...
...Top lid, 12...Cylindrical cover, 13...
... grouting agent, 15.16 ... nuts, 1
7... Iron plate, 18... Spacer.

Claims

[Scope of utility model registration request]

an internal thread 2 having a mark reference surface 1 on the upper end;
In a bench or mark equipped with an external screw 3 for screwing, three bolt mounting holes 4 are bored in the external screw 3 at approximately equal distances from each other, and the leg bolts 5, which expand and contract by the screw rotation, are attached to each of the three bolt mounting holes 4. A benchmark characterized by being installed in bolt mounting hole 4 of.