JPH039893U

JPH039893U -

Info

Publication number: JPH039893U
Application number: JP6912089U
Authority: JP
Priority date: 1989-06-15
Filing date: 1989-06-15
Publication date: 1991-01-30

Description

[Brief explanation of drawings]

第１図は第１実施例の平面図。第２図は第１図
の分解図。第３図は第１図のＸ−Ｘ断面拡大図。
第４図は第２実施例の平面図。第５図は第４図の
Ｙ−Ｙ断面拡大図。第６図は第３実施例の平面図
。第７図は第４実施例の平面図である。Ａ：３辺の長さがそれぞれ異なる直角三角形定
規、Ｂ：二等辺直角三角形定規、Ｃ：略長方形の
定規、Ｄ：雲形定規、１：定規主体、２：貫通孔
、３：寸法目盛り、４：字消板、５，６，７，８
：貫通孔、９：枠状、１０：凹部。 FIG. 1 is a plan view of the first embodiment. Figure 2 is an exploded view of Figure 1. FIG. 3 is an enlarged cross-sectional view taken along line XX in FIG. 1.
FIG. 4 is a plan view of the second embodiment. FIG. 5 is an enlarged cross-sectional view taken along the Y-Y line in FIG. 4. FIG. 6 is a plan view of the third embodiment. FIG. 7 is a plan view of the fourth embodiment. A: Right triangle ruler with different lengths on three sides, B: Isosceles right triangle ruler, C: Approximately rectangular ruler, D: Cloud-shaped ruler, 1: Ruler main body, 2: Through hole, 3: Dimension scale, 4 :Character eraser board, 5, 6, 7, 8
: through hole, 9: frame shape, 10: recessed part.

Claims

[Scope of claims for utility model registration] (1) Forming a frame shape with an appropriate thickness around the ruler,
A letter eraser board, characterized in that a thin wall portion of an arbitrary shape is provided on the inner lower surface of the ruler, and an appropriate number of through holes of an arbitrary shape are provided at appropriate positions in the thin wall portion to form a letter eraser board. A ruler set. (2) A character erasing board that also serves as a template is constructed by providing through holes in the thin part with numbers, Roman letters, or other arbitrary shapes for templates;
A ruler equipped with a letter erasing board, as set forth in item 1 of the claims for utility model registration.