CN108944192A - A kind of concentric circles ruler - Google Patents
A kind of concentric circles ruler Download PDFInfo
- Publication number
- CN108944192A CN108944192A CN201710362649.1A CN201710362649A CN108944192A CN 108944192 A CN108944192 A CN 108944192A CN 201710362649 A CN201710362649 A CN 201710362649A CN 108944192 A CN108944192 A CN 108944192A
- Authority
- CN
- China
- Prior art keywords
- ruler
- concentric circles
- hole
- shaft
- circle
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
Abstract
A kind of concentric circles ruler.One end of the ruler is the small-sized shaft comprising foresight, and blade carves full normal pitch hole.It is directed at the pre-determined center of circle with cross foresight when mapping, pins shaft with a finger, another holds pen, and the hole on ruler rotates around the shaft, circle can be drawn on paper, and can be switched fast hole, draws concentric circles.
Description
Technical field
The present invention relates to field of stationery, particularly belong to the field of stationery or teaching aid production.
Background technique
Circle draw tool at present, has various compasses and circle template, but the tip of compasses be easy to cause injury, circle template
Using simultaneously inconvenience, especially when needing to draw concentric circles.
Summary of the invention
The object of the present invention is to provide a kind of concentric circles rulers, draw circle using Principle of Rotating, and can pass through master scale
The concentric circles of hole Fast Drawing constant spacing.
To achieve the purpose of the present invention, a kind of concentric circles ruler is proposed.One end of the ruler is one and includes cross foresight
Small-sized shaft, blade carve full normal pitch hole.It is directed at the pre-determined center of circle with cross foresight when mapping, is pressed with a finger
Firmly shaft, another hold pen, and the hole on ruler rotates around the shaft, circle can be drawn on paper, and can be fast
Speed switching hole, draws concentric circles.
The invention has the advantages that circle, especially concentric circles conveniently and efficiently can manually be drawn, mapping is promoted
Efficiency, while product is free of sharp component, will not generate injury to paper and the person of drawing a picture, have the effect of positive.
Detailed description of the invention:
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of concentric circles ruler part partition schematic diagram of the embodiment of the present invention 1.
Fig. 2 is a kind of concentric circles ruler combination diagrammatic cross-section of the embodiment of the present invention 1.
Fig. 3 is a kind of concentric circles ruler combined planar schematic diagram of the embodiment of the present invention 1.
1. small-sized shaft in figure, 2. blades, 3. rotary shaft holes, 4. concentric circles holes,
1 ', small-sized shaft, 2 ' blades,
1 ", small-sized shaft, 2 " blades, 3 " rotary shaft holes, 4 " concentric circles holes.
Specific embodiment:
A kind of concentric circles ruler of embodiment 1 shown in Fig. 1, the small-sized shaft (1) with one comprising cross foresight, blade (2),
One end is rotary shaft hole (3), and the diameter of the hole is less than small-sized shaft (1), carves on blade full normal pitch hole (4).
A kind of concentric circles ruler of embodiment 1 shown in Fig. 2 leads to the I-shaped small-sized shaft (1 ') comprising cross foresight
The method for crossing insertion rotary shaft hole is mounted on blade (2 '), and the interior diameter of I-shaped shaft is equal to rotary shaft hole, overall diameter
Greater than shaft hole, it is possible to block and facilitate rotation, there is recess in the upper surface of small-sized shaft (1 '), finger is facilitated to press.
A kind of concentric circles ruler of embodiment example 1 shown in Fig. 3, by the I-shaped small-sized shaft (1 ") comprising cross foresight,
Method by being embedded in rotary shaft hole (3 "), is mounted on blade (2 "), and full normal pitch hole (4 ") is carved on blade.When mapping
It is directed at the pre-determined center of circle with cross foresight, is pinned shaft (1 ") with a finger, another holds pen, across the hole of ruler
Hole (4 "), rotates around the shaft, circle can be drawn on paper, and can be switched fast hole, draws concentric circles.The legend
Each group of hole is made of the oblique hole of a row and the small holes of lower section one, and oblique hole is away from the semidiameter at cross foresight
The semidiameter of 2mm, lower section hole and first hole of group is 5mm, so concentric circles ruler shown in the legend can quickly be drawn
The concentric circles of spacing 2mm, 5mm and their multiples out.
Claims (3)
1. a kind of concentric circles ruler.It is characterized in that: one end of the concentric circles ruler is the small-sized shaft comprising foresight, blade carves full scale
Quasi- spacing hole.
2. a kind of concentric circles ruler according to claim 1, it is characterised in that: the shaft of the ruler one end is with I-shaped for most
It is good, it can also be other structures being adapted to fit with rotation.
3. a kind of concentric circles ruler according to claim 1, it is characterised in that: scale above the ruler, hole layout can be with
Change, is subject to and facilitates calculating and manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362649.1A CN108944192A (en) | 2017-05-22 | 2017-05-22 | A kind of concentric circles ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362649.1A CN108944192A (en) | 2017-05-22 | 2017-05-22 | A kind of concentric circles ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108944192A true CN108944192A (en) | 2018-12-07 |
Family
ID=64461726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362649.1A Pending CN108944192A (en) | 2017-05-22 | 2017-05-22 | A kind of concentric circles ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108944192A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129222Y (en) * | 1992-08-06 | 1993-04-07 | 圜肠商贸有限公司 | Multifunction ruler |
| CN2345366Y (en) * | 1998-07-23 | 1999-10-27 | 鹿敬献 | Spot type multifunction quick drawing instrument |
| CN201419590Y (en) * | 2009-06-11 | 2010-03-10 | 赵超越 | Suction disc type cyclograph for teaching |
| CN201970718U (en) * | 2011-02-11 | 2011-09-14 | 章则雷 | Radius-adjustable magnetic circle tool |
| CN202151978U (en) * | 2011-07-16 | 2012-02-29 | 李林 | Teaching compasses |
| CN202557082U (en) * | 2012-04-14 | 2012-11-28 | 姜永彩 | Novel teaching ruler |
| CN202965700U (en) * | 2012-12-19 | 2013-06-05 | 南京理工大学 | Multifunctional dividing ruler |
| CN106079979A (en) * | 2016-08-05 | 2016-11-09 | 张旭光 | A kind of multifunctional mathmatical coordinatometer |
-
2017
- 2017-05-22 CN CN201710362649.1A patent/CN108944192A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2129222Y (en) * | 1992-08-06 | 1993-04-07 | 圜肠商贸有限公司 | Multifunction ruler |
| CN2345366Y (en) * | 1998-07-23 | 1999-10-27 | 鹿敬献 | Spot type multifunction quick drawing instrument |
| CN201419590Y (en) * | 2009-06-11 | 2010-03-10 | 赵超越 | Suction disc type cyclograph for teaching |
| CN201970718U (en) * | 2011-02-11 | 2011-09-14 | 章则雷 | Radius-adjustable magnetic circle tool |
| CN202151978U (en) * | 2011-07-16 | 2012-02-29 | 李林 | Teaching compasses |
| CN202557082U (en) * | 2012-04-14 | 2012-11-28 | 姜永彩 | Novel teaching ruler |
| CN202965700U (en) * | 2012-12-19 | 2013-06-05 | 南京理工大学 | Multifunctional dividing ruler |
| CN106079979A (en) * | 2016-08-05 | 2016-11-09 | 张旭光 | A kind of multifunctional mathmatical coordinatometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181207 |