CN201922788U  Curve board  Google Patents
Curve board Download PDFInfo
 Publication number
 CN201922788U CN201922788U CN2010206432612U CN201020643261U CN201922788U CN 201922788 U CN201922788 U CN 201922788U CN 2010206432612 U CN2010206432612 U CN 2010206432612U CN 201020643261 U CN201020643261 U CN 201020643261U CN 201922788 U CN201922788 U CN 201922788U
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 CN
 China
 Prior art keywords
 board
 curve
 hollow
 protractor
 flat board
 Prior art date
Links
 238000010586 diagram Methods 0.000 description 2
 230000001788 irregular Effects 0.000 description 2
 238000004164 analytical calibration Methods 0.000 description 1
 238000011088 calibration curve Methods 0.000 description 1
Abstract
The utility model provides a curve board, relating to a drawing tool. The curve board has the functions of a protractor and a ruler; a flat board is adopted; the flat board is provided with at least two hollow concentric circle arcs; the flat board is a round board, a polygonal board or an ellipse board; the round board and/or the circumference is/are provided with angle scales ranging from 0 to 360 degrees, so the round board can be used as a protractor; the polygonal board and/or the circumference is/are provided with length scales; the polygonal board can be a rectangle board; the polygonal board and/or the circumference also can be provided with a protractor, whose ranging scope is from 0 to 180 degrees; the flat board can be provided with at least one of a hollow circle, a hollow polygon, a hollow ellipses and a hollow star. The curve board can be used as a drawing tool.
Description
Technical field
The utility model relates to a kind of drawing appliance, especially relates to a kind of curve ruler.
Background technology
Traditional curve ruler is also referred to as cloud shape chi, but has the following disadvantages:
1) the irregular arrangement of different curvature curve, random big, be difficult for finding required curve during use.
2) the nongradual change of different curvature curve causes some curvature curve to repeat, and some curvature curve is damaged, makes troubles to the user.
3) the different curvature curve does not have radius dimension, can't know its radius value during use.
Chinese patent CN2159314 discloses a kind of set square that is used to draw, curve ruler, template, and characteristics are that the tow sides of plate margin are beveled edge, and the edge in plate midmodule hole also is twosided beveled edge.Great advantage is that the ink that has overcome drawing pen is seeped into muddled drawing above the drawing along the plate margin suction, so that damage the shortcoming of drawing, and can improve drawing efficiency.
Chinese patent CN85200966 discloses a kind of drawing calibration curve plate, and size scale is arranged on the curve ruler, when drawing symmetrical curve, can reach identical, and know length of curve.Combined type curve ruler numeral number is convenient to select for use.
Summary of the invention
The purpose of this utility model is to provide a kind of curve ruler that has functions such as protractor, ruler simultaneously concurrently.
The utility model is provided with a flat board, is provided with the concentric arc line of at least 2 hollow outs at flat board.
Described flat board can be circular slab, polygonal panel or elliptical flatplate etc.
Or/and periphery can be established angle index, described angle index is 0 °～360 ° on the described circular slab, can be used as protractor and uses.
Or/and periphery can be established the length scale, described polygonal panel can be rectangular slab on the described polygonal panel; Or/and periphery also can be provided with protractor, described protractor can be 0 °～180 ° protractors on the described polygonal panel.
Can be provided with the circle of hollow out on the described flat board, polygon, ellipse, at least a in the star etc.
The concentric arc line of described hollow out is by the descending arrangement of curvature, the least radius of concentric arc line can be 1mm, the maximum radius of concentric arc line can be 500mm, and the least radius of described concentric arc line also can dwindle again, and the maximum radius of concentric arc line also can increase again.
Adjacent semidiameter of the concentric arc line of described hollow out can enlarge according to actual needs gradually, and the least radius difference can be 0.5mm, and the maximum radius difference can be 100mm; The least radius difference can be dwindled again, and the maximum radius difference can increase again.
Because the utility model is provided with the concentric arc line of at least 2 hollow outs at flat board, so can overcome the irregular arrangement of the existing different curvature curve of traditional curve ruler, random big, be difficult for finding required curve during use; The nongradual change of different curvature curve causes some curvature curve to repeat, and some curvature curve is damaged, makes troubles to the user; And the different curvature curve do not have radius dimension, can't know shortcomings such as its radius value during use.
In addition and since described circular slab on or/and periphery can be established angle index, described angle index is 0 °～360 °, or/and periphery can be established the length scale, described polygonal panel can be rectangular slab on the described polygonal panel; Or/and periphery also can be provided with protractor, described protractor can be 0 °～180 ° protractors on the described polygonal panel, so the utility model can be used as protractor and ruler uses.
Simultaneously, owing to can be provided with the circle of hollow out on the described flat board, polygon, ellipse, at least a in the star etc., so the utility model can be used as drawing instrument and uses.
Description of drawings
Fig. 1 is that the structure of the utility model embodiment 1 is formed schematic diagram.
Fig. 2 is that the structure of the utility model embodiment 2 is formed schematic diagram.
The specific embodiment
Following examples will be further described the utility model in conjunction with the accompanying drawings.
Embodiment 1
Referring to Fig. 1, the utility model embodiment 1 is provided with a flat board 1, is provided with the concentric arc line 11 of some hollow outs at flat board 1.Described flat board is a circular slab, establishes angle index at the circular slab periphery, and described angle index is 0 °～360 °, can be used as protractor and uses.On circular slab, also be provided with ruler 12, establish the length scale on the ruler 12.Be provided with the circle 13 of hollow out on circular slab, circular diameter is respectively 0.1,0.15, and 0.25,0.3,0.35,0.4 and 0.45mm.
The concentric arc line of described hollow out is by the descending arrangement of curvature, the least radius of concentric arc line can be 1mm, the maximum radius of concentric arc line can be 500mm, and the least radius of described concentric arc line also can dwindle again, and the maximum radius of concentric arc line also can increase again.Adjacent semidiameter of the concentric arc line of described hollow out can enlarge according to actual needs gradually, and the least radius difference can be 0.5mm, and the maximum radius difference can be 100mm; The least radius difference can be dwindled again, and the maximum radius difference can increase again.
Embodiment 1 can use for the professional and technical personnel.
Embodiment 2
Referring to Fig. 2, the utility model embodiment 2 is provided with a flat board 2, on dull and stereotyped 2, be provided with the concentric arc line 21 of some hollow outs, described dull and stereotyped 2 is rectangular slab, on rectangular slab, establish the length scale with periphery, on rectangular slab and a side periphery be provided with protractor 22, described protractor 22 can be 0 °～180 ° protractors.
On rectangular slab, be provided with circle 23, right angled triangle 24, isosceles triangle 25 and the ruler 26 etc. of hollow out.
The concentric arc line of described hollow out is by the descending arrangement of curvature, the least radius of concentric arc line can be 1mm, the maximum radius of concentric arc line can be 500mm, and the least radius of described concentric arc line also can dwindle again, and the maximum radius of concentric arc line also can increase again.
Embodiment 2 can use for the student.
Adjacent semidiameter of the concentric arc line of described hollow out can enlarge according to actual needs gradually, and the least radius difference can be 0.5mm, and the maximum radius difference can be 100mm; The least radius difference can be dwindled again, and the maximum radius difference can increase again.
Radius is 0.5mm from its semidiameter of curve of 1mm to 5mm;
Radius is 1mm from its semidiameter of curve of 5mm to 50mm (school edition 30mm);
Radius its semidiameter of curve from 50mm (school edition 30mm) to 100mm is 10mm (school edition 5mm);
Radius is 100mm school edition 50mm from its semidiameter of curve of 100mm to 500mm (school edition 300mm)).
Claims (7)
1. curve ruler is characterized in that being provided with a flat board, is provided with the concentric arc line of at least 2 hollow outs at flat board.
2. curve ruler as claimed in claim 1 is characterized in that described flat board is circular slab, polygonal panel or elliptical flatplate.
3. curve ruler as claimed in claim 1 is characterized in that on the described circular slab that or/and periphery is established angle index, described angle index is 0 °～360 °.
4. curve ruler as claimed in claim 1 is characterized in that on the described polygonal panel or/and periphery is established the length scale.
5. curve ruler as claimed in claim 4 is characterized in that described polygonal panel is a rectangular slab.
6. as claim 4 or 5 described curve rulers, it is characterized in that on the described polygonal panel that or/and periphery is provided with protractor, described protractor is 0 °～180 ° protractors.
7. curve ruler as claimed in claim 1 is characterized in that described flat board is provided with the circle of hollow out, polygon, ellipse, at least a in the star.
Priority Applications (1)
Application Number  Priority Date  Filing Date  Title 

CN2010206432612U CN201922788U (en)  20101203  20101203  Curve board 
Applications Claiming Priority (1)
Application Number  Priority Date  Filing Date  Title 

CN2010206432612U CN201922788U (en)  20101203  20101203  Curve board 
Publications (1)
Publication Number  Publication Date 

CN201922788U true CN201922788U (en)  20110810 
Family
ID=44426656
Family Applications (1)
Application Number  Title  Priority Date  Filing Date 

CN2010206432612U CN201922788U (en)  20101203  20101203  Curve board 
Country Status (1)
Country  Link 

CN (1)  CN201922788U (en) 
Cited By (4)
Publication number  Priority date  Publication date  Assignee  Title 

CN102896953A (en) *  20120928  20130130  迁安市科技发展促进中心  Quincuncial circular arc drawing board 
CN103072411A (en) *  20130105  20130501  李伯谦  Drawing device with functions of set square, compasses and protractor 
CN103253044A (en) *  20130411  20130821  迁安市科技发展促进中心  150mm diameter arc quincunx drawing board 
CN104019723A (en) *  20140616  20140903  马人欢  Diameter measuring gauge 

2010
 20101203 CN CN2010206432612U patent/CN201922788U/en not_active IP Right Cessation
Cited By (5)
Publication number  Priority date  Publication date  Assignee  Title 

CN102896953A (en) *  20120928  20130130  迁安市科技发展促进中心  Quincuncial circular arc drawing board 
CN103072411A (en) *  20130105  20130501  李伯谦  Drawing device with functions of set square, compasses and protractor 
CN103072411B (en) *  20130105  20141224  李伯谦  Drawing device with functions of set square, compasses and protractor 
CN103253044A (en) *  20130411  20130821  迁安市科技发展促进中心  150mm diameter arc quincunx drawing board 
CN104019723A (en) *  20140616  20140903  马人欢  Diameter measuring gauge 
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Legal Events
Date  Code  Title  Description 

C14  Grant of patent or utility model  
GR01  Patent grant  
CF01  Termination of patent right due to nonpayment of annual fee  
CF01  Termination of patent right due to nonpayment of annual fee 
Granted publication date: 20110810 Termination date: 20161203 