JPH0393701U

JPH0393701U -

Info

Publication number: JPH0393701U
Application number: JP184490U
Authority: JP
Priority date: 1990-01-12
Filing date: 1990-01-12
Publication date: 1991-09-25

Description

[Brief explanation of the drawing]

第１図および第２図は、本考案の円の中心決定
定規の一実施例を示すもので、第１図は平面図、
第２図は斜視図であり、第３図および第４図は、
それぞれこの円の中心決定定規に取り付けられた
スライダーおよびストツパーの構成例を示す斜視
図である。Ａ……第１のＬ型定規、Ｂ……第２のＬ型定規
、Ｃ……棒体、１，２，３，４……定規片、５，
６……取付具、７，８……スライダー、９，１０
……糸、１１，１２……ストツパー、１３，１４
……係止部材。 Figures 1 and 2 show an embodiment of the circle center determining ruler of the present invention; Figure 1 is a plan view;
FIG. 2 is a perspective view, and FIGS. 3 and 4 are
FIG. 7 is a perspective view showing an example of the configuration of a slider and a stopper respectively attached to a ruler for determining the center of this circle. A...First L-shaped ruler, B...Second L-shaped ruler, C...Bar, 1, 2, 3, 4... Ruler piece, 5,
6... Mounting tool, 7, 8... Slider, 9, 10
... Thread, 11, 12 ... Stopper, 13, 14
...Locking member.

Claims

[Claims for Utility Model Registration] A pair of L-shaped rulers, each of which is a ruler for determining the center point of a circle, and which has two ruler pieces orthogonally arranged and a scale provided on the surface thereof. A rectangular frame is formed by slidingly attaching each other with the corners facing opposite directions, and a slider having a thread fixed thereto is slid onto one of the two sets of ruler pieces facing each other in the pair of L-shaped rulers. Attach the other ruler piece to the
A ruler for determining the center of a circle, characterized in that a stopper equipped with a locking member that catches and locks the tip of the thread fixed to the slider is slidably attached.