JPH0461003U

JPH0461003U -

Info

Publication number: JPH0461003U
Application number: JP10495990U
Authority: JP
Priority date: 1990-10-04
Filing date: 1990-10-04
Publication date: 1992-05-26

Description

[Brief explanation of the drawing]

第１図は半角求出器の平面図、第２図は側面図
、第３図は分度器付き半角求出器の平面図、第４
図は中心ピン部分の格段断面図、第５図、第６図
は分度器付き半角求出器の使用状態を示す説明図
である。符号、１……主尺、２……副尺、３……中心ピ
ン、６……枢着ピン、７……連結ピン、８……連
結ピン、９……半角求出尺、１０……半角求出針
、１０ａ……半角求出針の一側縁、１１……分度
器、１２……結合ピン。 Figure 1 is a plan view of the half-angle finder, Figure 2 is a side view, Figure 3 is a plan view of the half-angle finder with protractor, and Figure 4 is a plan view of the half-angle finder.
The figure is a marked cross-sectional view of the central pin portion, and FIGS. 5 and 6 are explanatory diagrams showing how the half-angle finder with protractor is used. Code, 1... Main scale, 2... Vernier scale, 3... Center pin, 6... Pivot pin, 7... Connecting pin, 8... Connecting pin, 9... Half-width measuring scale, 10... Half-width finding needle, 10a... One side edge of half-width finding needle, 11... Protractor, 12... Connecting pin.

Claims

[Claims for Utility Model Registration] A main scale 1 and a vernier scale 2 which are overlapped at one end and rotatably fixed by a center pin 3, and a main scale 1 and a vernier scale 2 which are overlapped at one end and rotatably fixed by a pivot pin 6. At the same time, the other ends of each are overlapped with the respective main lengths 1 and vernier lengths 2 and rotatably fixed with connecting pins 7 and 8, and a line connecting the centers of the center pin 3 and the pivot pin 6 is A half-angle finding measure 9 set to be a half-angle of the expansion angle of the main measure 1 and the vernier measure 4 is fixed rotatably with the center pin 3 with one end overlapping the main measure 1 and the vernier measure 2. , if the half-width seeking needle 10 is set so that one side edge 10a coincides with the line connecting the center pin 3 and the pivot pin 6 when the needle is positioned so as to span the center pin 3 and the pivot pin 6. A half-width finder. A protractor 11 for measuring the expansion angle of the main scale 1 and the vernier scale 2 is stacked on one end of the protractor 11 and fixed rotatably with a connecting pin 12. Half-angle calculator with protractor.