Multifunctional drawing rule

The utility model relates to a multi-purpose drawing ruler, which belongs to the technical field of stationery fabrication. The utility model comprises a main ruler and a second ruler. A semicircle protractor is arranged on the main ruler, a rotary shaft is arranged at the center of the semicircle p...

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Bibliographic Details
Main Author HONGLAN,XU GUO
Format Patent
LanguageEnglish
Published 21.03.2007
Subjects
ACCESSORIES FOR WRITING OR DRAWING
ARTICLES FOR WRITING OR DRAWING UPON
BUREAU ACCESSORIES
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
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Summary:The utility model relates to a multi-purpose drawing ruler, which belongs to the technical field of stationery fabrication. The utility model comprises a main ruler and a second ruler. A semicircle protractor is arranged on the main ruler, a rotary shaft is arranged at the center of the semicircle protractor, and a pointer-type ruler is hinged on the rotary shaft. The secondary ruler is combined with the main ruler through a sliding groove, and a boss is arranged at the intersection part and clamped into the sliding groove. The secondary ruler is perpendicular to the main ruler. A fastening button is arranged on the secondary ruler, and can be used to freely position the secondary ruler on the main ruler. For use, outer side of the main ruler is used to draw straight lines, the pointer-type ruler on the semicircle is used to draw angle sides, and the main ruler and the second ruler are used together to draw parallel lines or rectangles. The utility model can fulfill drawing demands of students, and is featured with easy and quick use.
Bibliography:Application Number: CN20052126069U