CN103879205B - Multi-functional polar coordinates instrument - Google Patents
Multi-functional polar coordinates instrument Download PDFInfo
- Publication number
- CN103879205B CN103879205B CN201410147801.0A CN201410147801A CN103879205B CN 103879205 B CN103879205 B CN 103879205B CN 201410147801 A CN201410147801 A CN 201410147801A CN 103879205 B CN103879205 B CN 103879205B
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- China
- Prior art keywords
- scale
- ruler
- circular hole
- arc
- axle
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- Expired - Fee Related
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- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000003973 paint Substances 0.000 abstract description 9
- 239000004033 plastic Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The present invention relates to a kind of point and paint polar multi-functional polar coordinates instrument, be made up of semicircle colourless transparent plastic scale and White-opalescent plastic flat ruler, scale and ruler are combined by the circular hole on the axle of scale reverse side circle centre position and ruler, and ruler can do 180 degree of rotations below scale.The radius of the diameter of scale and 90 degree of correspondences forms a crosshair at the upper surface of axle.Have one section perpendicular to the abutment wall of scale at the arc edge of scale reverse side, abutment wall and axle contour and slightly larger than the thickness of ruler.The zero mark end of ruler is arc-shaped, has a columniform circular hole near the ruler middle of arc end, and the diameter of circular hole is slightly larger than the diameter of axle on scale.An index line pointing to the circular hole upper bottom surface center of circle is had at arc-shaped end.The other end from circular hole to ruler has a cuboid slotted eye, and point-blank, there is length scale on this long limit, and its zero point is positioned on the axis of circular hole for a long limit of slotted eye upper bottom surface and the center of circle of index line and circular hole upper bottom surface.
Description
Technical field
The present invention relates to a kind of point and paint polar instrument, the multi-functional polar coordinates instrument be especially made up of scale and ruler.
Background technology
Polar coordinate system is the coordinate system planar representing position a little with Distance geometry angle.At present, in working and learning, in order on drawing, point paints the polar coordinates of certain point, first need use amount hornwork, aim at limit with the center of circle of protractor, zero degree line is overlapped with pole axis, a point point on the position equaling polar angle in the scale value of protractor, to determine the position on the whole limit of polar angle; And then utilize that mistake on the whole limit of limit and polar angle of ruler to do a ray, then on ray, measure the line segment that a section equals footpath, pole from limit, so namely line segment is the polar coordinates of this point away from the end points place of limit.
Process is painted as can be seen from point above, just need to change different instruments to put the polar coordinates painting a point, and protractor needs aligning limit and determines a point on a whole limit of polar angle, ruler not only also needs aligning limit but also needs to aim at that point on the whole limit of polar angle simultaneously, it is very inconvenient not only to do, and also there will be error to a certain degree through aligning repeatedly.If main points paint multiple point or the dynamic polar coordinates put at diverse location, just need constantly to change instrument, do and just more bother.
Domestic a kind of multi-function drawing instrument patent (patent No. 00201092.5), primarily of the formation such as ruler of protractor and band vernier, protractor and ruler are combined by hollow rotating shaft screw, ruler is positioned at above protractor, can rotate around hollow rotating shaft screw, ruler, angle square, active chi, T-square, compasses (needing when making compasses with center of circle pin location) and protractor can be done and use.This instrument also can paint polar coordinates with giving me a little, but give me a little with it and paint polar coordinates and obviously there is following problem: when the spindle central of protractor being positioned at polar limit by hollow rotating shaft screw, need to use aid center of circle pin, operate cumbersome, also not easily observe if misplace between protractor spindle central and limit in use procedure; When utilizing the vernier on ruler to slidably reciprocate to measure footpath, pole, the number of degrees corresponding to ruler are easily caused to misplace and misplace between protractor spindle central and limit; Ruler is positioned on protractor, and ruler is gyrated easily and the hand of operator clashes, and is not only not easy to operation, also easily causes between protractor spindle central and limit and misplace; Ruler is positioned on protractor, ruler will be caused to be suspended on drawing or ruler bends contact drawing, all not easily that pole mass runoff is accurate.In addition, its protractor also exists blind area from diameter to its straight flange, in this blind area, due to blocking of protractor, cannot paint polar coordinates by point in this region.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of instrument easy and simple to handle, and quick and precisely the polar coordinates of certain point are painted in place.
For solving the problems of the technologies described above, the present invention is formed primarily of scale and ruler.Have a columniform axle at the circle centre position of scale reverse side, the axis of axle is by the center of circle of scale.Ruler has a circular hole, when axle is inserted in circular hole, ruler can do 180 degree of rotations around axle below scale.
Described scale is semicircle, is made up, is carved with the scale of the number of degrees at the edge of scale front circular arc from one end of diameter to the other end, and indicate two row words of 0-180 degree and 180-0 degree respectively of colourless transparent plastic.When ruler rotates to the position of 180 degree, at the reverse side of scale, the arc edge do not overlapped with ruler has the abutment wall perpendicular to scale, abutment wall and axle contour and slightly larger than the thickness of ruler, like this, when scale is placed on drawing, by hand appropriateness by press against scale, scale is by axle and abutment wall Absorbable organic halogens on drawing, and now, ruler can do 180 degree of rotations below scale.The radius of the diameter of scale and 90 degree of correspondences forms a crosshair at the upper surface of axle, is used as to aim at certain fixing point.
Described ruler, is made up of White-opalescent plastics, and its zero mark end is arc-shaped.Have a columniform circular hole near the ruler middle of arc end, the diameter of circular hole is slightly larger than the diameter of axle on scale.In the middle of arc-shaped end surfaces, there is an index line pointing to the circular hole upper bottom surface center of circle, utilize this index line to can read the number of degrees of ruler rotation.The other end from circular hole to ruler has a cuboid slotted eye, and the center of circle of slotted eye upper bottom surface long limit and index line and circular hole upper bottom surface point-blank, and this long limit also has the numerical value of length scale and sign, its zero point is positioned on the axis of circular hole.
When point paints polar coordinates, axle on scale is inserted in the circular hole on ruler, polar limit is aimed at the central point of crosshair on axle, and make the straight flange on scale overlap with pole axis, now ruler is below scale, rotate ruler, the index line of ruler arc end is overlapped with corresponding angle index, the number of degrees now indicated by index line are polar polar angle, then utilize the scale on slotted eye limit, equal footpath, pole place point draw polar coordinates by the straight scale value that is connected on.So like this, rotate ruler and can paint the polar coordinates of multiple point by Quick-Point.
If when measuring the number of degrees at an angle, with the summit of the accurate alignment angle of the central point of crosshair, and make overlapping of the straight flange on scale and angle, rotate ruler, when the graduated limit of slotted eye overlaps with the another side at angle, the number of degrees of index line indication are the number of degrees of institute's angle measurement.
If index line is aimed at the graduation mark of 90 degree, become right angle between the long limit of ruler and the straight flange of scale, namely state now becomes a square, and this instrument so can be utilized to draw the vertical line etc. of right angle and straight line.
In addition, utilize this instrument, also can draw azimuth of target and direction line.
The scale of this instrument both can be separated with ruler, and the ruler that length that also can be supporting from other is different combines.
Compared with prior art, this beneficial effect of the invention is: rational in infrastructure, accurate positioning, low cost of manufacture, easy to use, be convenient for carrying, multi-use, during work quick and precisely.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the top view of the multi-functional polar coordinates instrument of the present invention.
Fig. 2 is the top view of scale in multi-functional polar coordinates instrument.
Fig. 3 is the right view of scale in multi-functional polar coordinates instrument.
Fig. 4 is the front view of ruler in multi-functional polar coordinates instrument.
Fig. 5 is the top view of ruler in multi-functional polar coordinates instrument.
Detailed description of the invention
Fig. 1 is the top view of the multi-functional polar coordinates instrument of the present invention.Scale 1 and ruler 7 are combined by the axle 2 on scale 1 and the circular hole 9 on ruler 7, and ruler 7 is below scale 1, and ruler 7 can do 180 degree of rotations around axle 2.
Fig. 2 is the top view of scale 1 in this instrument.This scale 1 is semicircle, is made up of colourless transparent plastic.Be carved with number of degrees scale at the edge of scale 1 front circular arc from one end of diameter 5 to the other end, and indicate two row's number of degrees values of 0-180 degree and 180-0 degree.At the circle centre position of scale 1 reverse side, have one perpendicular to the columniform axle 2 of scale 1, the upper surface of axle 2 and the front of scale 1 are in same plane, and the axis of axle 2 passes through the center of circle of scale 1.The radius 6 of the diameter 5 of scale 1 and 90 degree of correspondences forms a crosshair 3 at the upper surface of scale axle 2, and the crosspoint of crosshair 3 overlaps with the center of circle, and crosshair 3 is used as to aim at certain fixing point on drawing.As Fig. 1 to Fig. 4, when ruler 7 rotates to the position of 180 degree, at the reverse side of scale 1, the arc edge do not overlapped with ruler 7 has one section perpendicular to the abutment wall 4 of scale 1, and abutment wall 4 is contour and slightly larger than the thickness of ruler 7 with axle 2.
In Fig. 2 and Fig. 5, ruler 7 is made up of White-opalescent plastics, and the zero mark end of ruler 7 is arc-shaped, has a columniform circular hole 9 near ruler 7 middle of arc end, the diameter of circular hole 9 is slightly larger than the diameter of axle 2 on scale 1, and ruler 7 can freely rotate around axle 2.In the middle of arc-shaped end surfaces, there is an index line 10 pointing to the circular hole 9 upper bottom surface center of circle, utilize index line 10 to can read the number of degrees of ruler 7 rotation.The other end from circular hole 9 to ruler 7 has a cuboid slotted eye 8, and the center of circle of one of slotted eye 8 upper bottom surface long limit 11 and index line 10 and circular hole 9 upper bottom surface point-blank, this long limit 11 also has the numerical value of length scale and sign, its zero point is positioned on the axis of circular hole 9.
Claims (1)
1. a multi-functional polar coordinates instrument, be made up of a scale and a ruler, scale and ruler are combined by the axle of scale reverse side circle centre position and the circular hole of ruler zero mark end middle, ruler can do 180 degree of rotations around axle below scale, scale is semicircle, be made up of colourless transparent plastic, be carved with the scale of the number of degrees from one end of diameter to the other end at the edge of scale front circular arc, and indicate two row's number of degrees values of 0-180 degree and 180-0 degree, the zero mark end of ruler is arc-shaped, the other end from the circular hole of arc end to ruler has a cuboid slotted eye, an index line pointing to the circular hole upper base center of circle is had in the middle of the arc-shaped end surfaces of ruler, it is characterized in that: described scale (1), when ruler (7) rotates to 180 degree, at the reverse side of scale (1), the arc edge do not overlapped with ruler (7) has one section of abutment wall perpendicular to scale (1) (4), and the upper surface circle centre position of its axle (2) has a crosshair (3), described ruler (7), there is the center of circle cuboid slotted eye (8) point-blank of a upper bottom surface long limit (11) and index line (10) and circular hole (9) upper bottom surface, this long limit (11) has the numerical value of length scale and sign, its zero point is positioned on the axis of circular hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147801.0A CN103879205B (en) | 2014-04-08 | 2014-04-08 | Multi-functional polar coordinates instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147801.0A CN103879205B (en) | 2014-04-08 | 2014-04-08 | Multi-functional polar coordinates instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103879205A CN103879205A (en) | 2014-06-25 |
| CN103879205B true CN103879205B (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410147801.0A Expired - Fee Related CN103879205B (en) | 2014-04-08 | 2014-04-08 | Multi-functional polar coordinates instrument |
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| Country | Link |
|---|---|
| CN (1) | CN103879205B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915186B (en) * | 2017-04-26 | 2018-03-09 | 河南工程学院 | Automation curve mapping teaching aid and curve tracing method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202137U (en) * | 1987-02-18 | 1988-04-06 | 孙向东 | Length-adjustable and any angle-drawing ruler |
| CN2149298Y (en) * | 1993-04-07 | 1993-12-15 | 窦聿明 | Composition type drawing angles ruler |
| CN2243395Y (en) * | 1995-12-08 | 1996-12-25 | 斯马胡里 | Drawing ruler |
| CN2403588Y (en) * | 2000-01-27 | 2000-11-01 | 李双福 | Multifunction drawing instrument |
| US6978550B2 (en) * | 2004-01-21 | 2005-12-27 | Kun-Li Xieh | Protractor and ruler combination |
| CN101130327A (en) * | 2007-09-19 | 2008-02-27 | 扬州大学 | multifunctional math ruler |
| CN201808353U (en) * | 2010-08-30 | 2011-04-27 | 朱远静 | Multifunctional ruler |
| JP4910199B2 (en) * | 2009-04-20 | 2012-04-04 | 誠太郎 新名 | Drawing ruler with angle ruler |
-
2014
- 2014-04-08 CN CN201410147801.0A patent/CN103879205B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87202137U (en) * | 1987-02-18 | 1988-04-06 | 孙向东 | Length-adjustable and any angle-drawing ruler |
| CN2149298Y (en) * | 1993-04-07 | 1993-12-15 | 窦聿明 | Composition type drawing angles ruler |
| CN2243395Y (en) * | 1995-12-08 | 1996-12-25 | 斯马胡里 | Drawing ruler |
| CN2403588Y (en) * | 2000-01-27 | 2000-11-01 | 李双福 | Multifunction drawing instrument |
| US6978550B2 (en) * | 2004-01-21 | 2005-12-27 | Kun-Li Xieh | Protractor and ruler combination |
| CN101130327A (en) * | 2007-09-19 | 2008-02-27 | 扬州大学 | multifunctional math ruler |
| JP4910199B2 (en) * | 2009-04-20 | 2012-04-04 | 誠太郎 新名 | Drawing ruler with angle ruler |
| CN201808353U (en) * | 2010-08-30 | 2011-04-27 | 朱远静 | Multifunctional ruler |
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| Publication number | Publication date |
|---|---|
| CN103879205A (en) | 2014-06-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20170408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |