Mathematical plotter

The utility model discloses a mathematical plotter. The mathematical plotter comprises a right-angle triangular ruler 1, wherein a straight ruler 2 with length identifiers is arranged on the inclined edge of the right-angle triangular ruler 1; the straight ruler 2 and the right-angle triangular rule...

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Bibliographic Details
Main Author ZHAO KEQUAN
Format Patent
LanguageEnglish
Published 10.06.2015
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 discloses a mathematical plotter. The mathematical plotter comprises a right-angle triangular ruler 1, wherein a straight ruler 2 with length identifiers is arranged on the inclined edge of the right-angle triangular ruler 1; the straight ruler 2 and the right-angle triangular ruler 1 is of an integrated structure; a positioning sleeve 5 is arranged in the middle of the straight ruler 2; a protractor 9 is rotatably arranged on the outer circle of the positioning sleeve 5; the right-angle triangular ruler 1 is provided with an inwards concave stepped surface 91 which is matched with the protractor 9 in appearance; the height of the inwards concave stepped surface 91 is uniform with the thickness of the protractor 9; a sliding way 7 is arranged on the right side of the straight ruler 2; the section of the sliding way 7 is of an inverted T shape; a sliding plate 83 is arranged on the sliding way 7. The mathematical plotter disclosed by the utility model is simple in structure and convenient to operate; a standard horizontal line can be drawn conveniently; arithmetical operation can be carried out while pattern are drawn; the protractor 9 can be rotatably tabled to the inwards concave stepped surface 91 and then stored while being not used.
Bibliography:Application Number: CN2015216498U