Unlock instant, AI-driven research and patent intelligence for your innovation.

Drawing ruler

A technology of drawing ruler and ruler, which is applied in the field of stationery, can solve the problems of dirty paper surface, affecting drawing efficiency, irreplaceable ruler, etc., and achieves the effect of simple structure, improved quality and efficiency

Inactive Publication Date: 2019-04-05
NINGBO ZHENHAI YIFULAI CULTURE CREATIVE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, it is common for students to use a drawing ruler. When drawing with a pen, ink spots are often left wet. Drawing after drying will affect the drawing efficiency. If you do not pay attention to moving the ruler, because the bottom of the ruler is flat, so , it will stain the wet ink on the pen line just drawn, and with the movement of the ruler, it will be infected on the entire paper, and if you are not careful, the paper will be stained and messy, and sometimes you have to redraw it , In addition, when making a circle, the straightedge cannot be replaced, and it is troublesome to find a compass

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drawing ruler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] In the figure, raised semicircle dots 2 are set on the bottom surface 2 (sticker side) of the existing drawing ruler 1, and the semicircle dots are distributed at both ends of the ruler, and two semicircle dots are distributed at each end. The connecting line is perpendicular to the straight line of the ruler. When the ruler is pasted on the paper, the sticking surface of the ruler can be separated from the paper by a certain distance due to the support of the half-dot. Further, a button 4 is set at one end of the ruler, the bottom of the button passes through the ruler, and the bottom of the button is connected to the rubber pad, which prevents the rubber pad point of the button from sliding due to the setting of the rubber pad, and can also avoid the sharp needle To wear the defect of the paper surface, a straight groove 5 is opened on the ruler below the button, the button can slide on the straight groove, a scale 6 is engraved on the edge of the straight groove, and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a drawing ruler. Anti-ink-stained bottom convex points and a circle drawing device are arranged on the ruler, the surface, attached to paper, of the ruler can be away from thepaper surface by a certain distance, the contact between the bottom surface of the ruler and undried ink is avoided, so that the paper surface is prevented from being stained when the ruler moves; thecircle drawing device is arranged on the ruler, the ruler and a pen are combined to be used, and the ruler can replace a compass; and due to the arrangement of the semicircular points and the circledrawing device on the ruler, the purposes that the bottom surface of the ruler is prevented from being stained with the ink so as to prevent the paper surface from being stained and the ruler can replace the compass are achieved.

Description

technical field [0001] The invention relates to a stationery, in particular to a ruler used by students for drawing. Background technique [0002] Nowadays, it is common for students to use a drawing ruler. When drawing with a pen, ink spots are often left wet. Drawing after drying will affect the drawing efficiency. If you do not pay attention to moving the ruler, because the bottom of the ruler is flat, so , it will stain the wet ink on the pen line just drawn, and with the movement of the ruler, it will be infected on the entire paper, and if you are not careful, the paper will be stained and messy, and sometimes you have to redraw it In addition, when making a circle, the ruler cannot be replaced, and it is troublesome to find a compass. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the drawing ruler, the utility model provides a drawing ruler. The drawing ruler is provided with an anti-ink bottom convex point, so that the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B43L7/00
CPCB43L7/005
Inventor 陈际军
Owner NINGBO ZHENHAI YIFULAI CULTURE CREATIVE