CN102729702A - Circle drawing ruler capable of drawing circle center - Google Patents
Circle drawing ruler capable of drawing circle center Download PDFInfo
- Publication number
- CN102729702A CN102729702A CN2011100954730A CN201110095473A CN102729702A CN 102729702 A CN102729702 A CN 102729702A CN 2011100954730 A CN2011100954730 A CN 2011100954730A CN 201110095473 A CN201110095473 A CN 201110095473A CN 102729702 A CN102729702 A CN 102729702A
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- CN
- China
- Prior art keywords
- circle
- center
- pointer
- chi
- draw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a circle drawing ruler capable of drawing a circle center. The circle drawing ruler comprises a pointer capable of determining the circle center; and according to the pointer, the circle center can be quickly and accurately determined under the condition that other tools are not used. The circle drawing ruler is applied to circle drawing tools used by students for learning and industrial design. The circle drawing ruler is characterized in that one end of the pointer (3) for fixing the circle center is connected to the circle drawing ruler (1) and used for fixing the circle drawing ruler (1); and the other end of the pointer (3) points the circle center of a hollow circular ring (2).
Description
Affiliated field:
The picture circle chi that can draw the center of circle relates to a kind of chi.Be applied to the circle tool in student's study and the industrial design.
Background technology:
Drawing the circle chi is on a rectangular chi, to be covered with circle, and order is arranged by size, and the user can just can draw circle rapidly along the hollow ring of drawing in the circle chi without compasses, if centering must measure with a yardstick, perhaps roughly estimates home position.
Summary of the invention:
Can't directly draw the problem in the center of circle in order to solve existing picture circle chi, the picture circle chi that can draw the center of circle provides a kind of pointer of definite center of circle, can not use according to this pointer under the situation of other instrument and just can confirm the center of circle rapidly and accurately.
Technical scheme:
The way that can draw its technical problem of picture circle chi solution in the center of circle is in drawing the circle chi, and synthetic one of the pointer set of hollow ring, centering is drawn round chi.Centering pointer one end is connected on the chi, and the other end points to the center of circle.
The beneficial effect that can draw the picture circle chi in the center of circle is to see home position intuitively, needn't be indirect with dipstick metering or estimation, omitted with ruler and measured the heart once more.
Description of drawings:
Fig. 1 is the picture circle chi that can draw the center of circle.
Draw circle chi (1) among Fig. 1, hollow ring (2), the pointer of centering (3).
Below in conjunction with accompanying drawing and instance to being that the picture circle chi that can draw the center of circle further specifies.
The specific embodiment
In Fig. 1, draw circle chi (1); Hollow ring (2); The pointer of centering (3) is formed successively, and wherein ring is circular in one of the hollow formation, and the trend that the user is used for controlling pen is drawn as a circle along circle; Pointer (3) one ends of centering are connected on the picture circle chi and play fixation, and the other end points to the center of circle.
Claims (2)
1. can draw the picture circle chi in the center of circle, by picture circle chi (1), hollow ring (2), the pointer of centering (3) is formed, and on picture circle chi (1), hollow ring (2) is arranged, and it is characterized in that: pointer (3) one ends of the centering that empty circles is interior are connected on the picture circle chi (1).
2. follow according to the described picture circle chi that can draw the center of circle of claim 1, it is characterized in that the pointer (3) of centering refers to reach home position by drawing the extension of circle chi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100954730A CN102729702A (en) | 2011-04-15 | 2011-04-15 | Circle drawing ruler capable of drawing circle center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100954730A CN102729702A (en) | 2011-04-15 | 2011-04-15 | Circle drawing ruler capable of drawing circle center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102729702A true CN102729702A (en) | 2012-10-17 |
Family
ID=46986285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100954730A Pending CN102729702A (en) | 2011-04-15 | 2011-04-15 | Circle drawing ruler capable of drawing circle center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102729702A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085307U (en) * | 1990-08-06 | 1991-09-25 | 莫仲伯 | Multifunctional set square for student's homework |
| CN2252716Y (en) * | 1996-04-18 | 1997-04-23 | 马顺 | Position plotting instrument |
| CN2454148Y (en) * | 2000-12-19 | 2001-10-17 | 项光辉 | Multi-purpose drawing ruler and gauge |
| JP2005047243A (en) * | 2003-03-20 | 2005-02-24 | Hiroshi Takahata | Ruler for drawing circle |
| JP2005280327A (en) * | 2004-03-30 | 2005-10-13 | Hiroshi Takahata | Ruler for drawing circle |
| CN201070925Y (en) * | 2007-06-12 | 2008-06-11 | 范开磊 | Multifunctional ruler |
| CN202046089U (en) * | 2011-04-15 | 2011-11-23 | 王凌海 | Circle drawing ruler capable of drawing center of circle |
-
2011
- 2011-04-15 CN CN2011100954730A patent/CN102729702A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085307U (en) * | 1990-08-06 | 1991-09-25 | 莫仲伯 | Multifunctional set square for student's homework |
| CN2252716Y (en) * | 1996-04-18 | 1997-04-23 | 马顺 | Position plotting instrument |
| CN2454148Y (en) * | 2000-12-19 | 2001-10-17 | 项光辉 | Multi-purpose drawing ruler and gauge |
| JP2005047243A (en) * | 2003-03-20 | 2005-02-24 | Hiroshi Takahata | Ruler for drawing circle |
| JP2005280327A (en) * | 2004-03-30 | 2005-10-13 | Hiroshi Takahata | Ruler for drawing circle |
| CN201070925Y (en) * | 2007-06-12 | 2008-06-11 | 范开磊 | Multifunctional ruler |
| CN202046089U (en) * | 2011-04-15 | 2011-11-23 | 王凌海 | Circle drawing ruler capable of drawing center of circle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |