JPS603091U

JPS603091U - compass

Info

Publication number: JPS603091U
Application number: JP9482183U
Authority: JP
Inventors: 松本　宜久
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-06-20
Filing date: 1983-06-20
Publication date: 1985-01-10

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図はいずれもこの考案の一実施例を示すもので、第１図
は収納状態の斜視図、第２図は最小半径円の描写状態の
斜視図、第３図はグリップの分解斜視図、第４図ａ、　
　ｂはそれぞれ固定機構の斜視図と分解斜視図、第４図
Ｃは固定機構の断面図、第５図ａは関節部の分解斜視図
、第５図す、　　ｃは関節部のストップ機構部分の断面
図、第６図は描き針部の分解斜視図、第７図は最大半径
円の描写状態の斜視図、第８図は描写半径を決める目盛
りの刻設状態を示す斜視図である。１・・・回動杆部、２・・・定規部、３・・・関節部、
４・・・描き針部、１１・・・回動杆、１２・・・継ぎ
学部材、１３・・・割溝、１４・・・大径部、１５・・
・グリップ、１７・・・枢軸、２４・・・取付は部材、
２６・・・固定杆、２８・・・スプリング、２９・・・
切込み、３１・・・ブラケット、３２・・・中心針、３
３・・・支持板、３４・・・枢軸、３７・・・ロックピ
ン、４３・・・割溝、４４・・・枢軸、４５・・・描き
針。The figures all show one embodiment of this invention. Figure 1 is a perspective view of the stored state, Figure 2 is a perspective view of the minimum radius circle depicted, Figure 3 is an exploded perspective view of the grip, and Figure 3 is a perspective view of the grip. Figure 4a,
4B is a perspective view and an exploded perspective view of the fixing mechanism, FIG. 4C is a sectional view of the fixation mechanism, FIG. 5A is an exploded perspective view of the joint, and FIG. 6 is an exploded perspective view of the drawing needle, FIG. 7 is a perspective view showing the state of drawing the maximum radius circle, and FIG. 8 is a perspective view showing the state of engraving of the scale for determining the drawing radius. 1... Rotating rod part, 2... Ruler part, 3... Joint part,
4... Drawing needle part, 11... Rotating rod, 12... Joint member, 13... Division groove, 14... Large diameter part, 15...
・Grip, 17... Pivot, 24... Mounting parts,
26... Fixed rod, 28... Spring, 29...
Depth of cut, 31... Bracket, 32... Center needle, 3
3... Support plate, 34... Pivot, 37... Lock pin, 43... Division groove, 44... Pivot, 45... Drawing needle.

Claims

[Scope of utility model registration request]

A support needle is fixed to the connecting end via a joint mechanism with the other end of a rotating rod having a grip attached to one end so that it can be turned upside down, and a cylindrical member with a different diameter is fitted to the other end. A support rod fitted with a ruler member that can be expanded and contracted is connected,
A locking mechanism is attached to each end of the cylindrical member of unit length, and a drawing needle is attached to the end of the inner crotch of the cylindrical member with a small diameter, so that the ruler member can be expanded and contracted to draw arcs with different radii. A compass that features: