CN102729702A - Circle drawing ruler capable of drawing circle center - Google Patents

Circle drawing ruler capable of drawing circle center Download PDF

Info

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
Authority
CN
China
Prior art keywords
circle
center
chi
ruler
pointer
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
Application number
CN2011100954730A
Other languages
Chinese (zh)
Inventor
王凌海
Original Assignee
王凌海
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 王凌海 filed Critical 王凌海
Priority to CN2011100954730A priority Critical patent/CN102729702A/en
Publication of CN102729702A publication Critical patent/CN102729702A/en
Pending legal-status Critical Current

Links

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

Can draw the picture circle chi in the center of circle
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.
CN2011100954730A 2011-04-15 2011-04-15 Circle drawing ruler capable of drawing circle center Pending CN102729702A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN103786496A (en) Multipurpose mathematical teaching aid
CN202046089U (en) Circle drawing ruler capable of drawing center of circle
CN102729702A (en) Circle drawing ruler capable of drawing circle center
CN201573431U (en) Multi-functional drawing rule for mathematics
CN202071583U (en) Multifunctional angle measuring and arc drawing instrument
CN205439708U (en) Teaching ruler
CN201800392U (en) Semicircular combined sector for math teaching
CN201456761U (en) Multifunctional ruler
CN201254029Y (en) Educational compasses
CN203331647U (en) Multi-functional measurable compass
CN202975074U (en) Multifunctional multimeter pen
CN203902047U (en) Combined-type surveying and mapping pen
CN201376426Y (en) Single-arm compass
CN201913962U (en) Novel compass instrument
CN203185935U (en) Ruler with circle drawing function
CN203142174U (en) Flexible rule
CN201291683Y (en) Novel compasses special for blackboard
CN201913963U (en) Angular measurement plate
CN201670007U (en) Pen with ruler
CN202727753U (en) Multifunctional ruler for mathematics teaching
CN201872459U (en) Ball point pen with graduated scale
CN204249644U (en) A kind of multifunction teaching set square
CN201304822Y (en) Protractor for drawing circle
CN201415569Y (en) Multi-purpose triangular rule
CN203305732U (en) Multifunctional compasses

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20121017

C02 Deemed withdrawal of patent application after publication (patent law 2001)