CN1088873A - Laterally graduated compasses - Google Patents
Laterally graduated compasses Download PDFInfo
- Publication number
- CN1088873A CN1088873A CN 92107870 CN92107870A CN1088873A CN 1088873 A CN1088873 A CN 1088873A CN 92107870 CN92107870 CN 92107870 CN 92107870 A CN92107870 A CN 92107870A CN 1088873 A CN1088873 A CN 1088873A
- Authority
- CN
- China
- Prior art keywords
- compasses
- main scale
- armed lever
- chi
- fixed
- 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
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention belongs to the circular curve plotter---the compasses field.It has solved unstable, the inconvenient technical problem of existing compasses drawing.Its technical characterictic is to change two armed levers of compasses into separate type by intersecting, and the armed lever of band pivot and cushion pin is fixed on the horizontal master calibration chi, and the armed lever of another band nib or writing implement is fixed on the secondary rule.It is one that major and minor chi coincide with tongue and groove, and secondary chi can horizontally slip in the groove of main scale.According to design of the present invention, can produce large, medium and small various different model, the teaching of unlike material and drawing compass.It will be a general welcome new product.
Description
What the present invention relates to is the circular curve plotter---the invention of compasses.
Known to the applicant, no matter impart knowledge to students or the compasses of the usefulness of drawing, mostly form by pivot, armed lever angular adjustment apparatus, armed lever, cushion pin, nib or several parts of writing implement.During use, hold pivot, on rule, measure required length, adjust the angle of two armed levers then with needle point and nib, fixing.Compasses being erected at last, is the center of circle with the needle point again, the armed lever of rotating band nib, and required circular arc draws.During operation, instability is skidded easily.Especially wooden educational compasses, during rotation because the change of radius, the displacement in the center of circle, very inconvenient during drawing, also inaccuracy.
The purpose of this invention is to provide and a kind ofly can directly measure radius, not only stable but also dexterous drawing compass during operation with rule.
The present invention is like this design: the mode that two armed levers that will have compasses now intersect at pivot (or armed lever angular adjustment apparatus) changes the horizontal type compasses that two armed levers separate fully into.An armed lever vertical fixing that contains pivot and cushion pin is on the master calibration chi.The penholder of another double as armed lever or writing implement are fixed on the secondary rule.Main scale and secondary chi coincide by tongue and groove and are one, and secondary chi can horizontally slip in the groove of main scale.
Contrast description of drawings structure of the present invention below.
Fig. 1 is the front view of laterally graduated compasses.
The 1-1 main scale, the secondary chi of 1-2,1-3 pivot, 1-4 armed lever, 1-5 cushion pin, the tight loop on the secondary chi of 1-6,1-8 holding screw, 1-9 holding screw, 1-13 toggle.
Fig. 2 is the user mode reference diagram of laterally graduated compasses
Tight loop on the 2-7 main scale, 2-10 set screw, 2-11 set screw, 2-12 sucker.
Use when of the present invention, the right hand is held the pivot of main scale, with the fixing center of circle of cushion pin (or sucker), moving sets chi, measures the radius of required curve, tightens holding screw, rotating hinge, and required curve just can very stably be drawn.Not the time spent, with the toggle bending, needle point is withdrawn, and penholder or writing implement are extracted out, both were easy to carry, and can also be used as general ruler and use.
Advantage of the present invention is: according to structural design of the present invention, can make large, medium and small The teaching of various different shaped unlike materials or drawing compass. The product technology stable performance is not decreased Bad blackboard, sturdy and durable, easy to use, cost is low, will become welcome renewal and change The product in generation.
Claims (9)
1, a kind of laterally graduated compasses, it contains pivot (3), armed lever (4), cushion pin (5), it is characterized in that: armed lever (4) is fixed on the main scale (1), the tight loop (6) that nib or writing implement are installed is fixed on the secondary chi (2), main scale (1) and secondary chi (2) coincide by tongue and groove and are one, and secondary chi (2) can horizontally slip in the groove of main scale (1).
2, by the described laterally graduated compasses of claim 1, the lower edge that it is characterized in that main scale (1) has the centimeter scale line of right-to-left.
3, by the described laterally graduated compasses of claim 1, it is characterized in that having on the secondary chi (2) centimeter scale line from left to right.
4, by the described laterally graduated compasses of claim 1, it is characterized in that tight loop (7) is arranged on the main scale (1), pivot (3), armed lever (4), cushion pin (5) vertically are fixed on the main scale (1) by it.
5, by the described laterally graduated compasses of claim 1, it is characterized in that holding screw (8) is arranged on the tight loop (7).
6,, it is characterized in that on the tight loop (6) of secondary chi a holding screw (9) being arranged by the described laterally graduated compasses of claim 1.
7, by the described laterally graduated compasses of claim 1, it is characterized in that on the upper edge of main scale (1) that set screw (10), (11) of two fixed joint chis (2) are arranged.
8, by the described laterally graduated compasses of claim 1, it is characterized in that a dismountable sucker (12) is arranged on the cushion pin (5).
9, want 1 described laterally graduated compasses by right, it is characterized in that armed lever (4) is connected with toggle (13) with cushion pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107870 CN1088873A (en) | 1992-12-29 | 1992-12-29 | Laterally graduated compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92107870 CN1088873A (en) | 1992-12-29 | 1992-12-29 | Laterally graduated compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088873A true CN1088873A (en) | 1994-07-06 |
Family
ID=4943125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92107870 Pending CN1088873A (en) | 1992-12-29 | 1992-12-29 | Laterally graduated compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088873A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
| CN103659786A (en) * | 2013-11-28 | 2014-03-26 | 武汉一冶钢结构有限责任公司 | Central line marker of multi-radian elbow |
| CN107310307A (en) * | 2017-07-20 | 2017-11-03 | 合肥顺顺信息咨询有限公司 | A kind of compasses for precisely drawing |
| CN112937172A (en) * | 2021-02-26 | 2021-06-11 | 日照职业技术学院 | A multipurpose drawing device for mathematical education |
-
1992
- 1992-12-29 CN CN 92107870 patent/CN1088873A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
| CN103659786A (en) * | 2013-11-28 | 2014-03-26 | 武汉一冶钢结构有限责任公司 | Central line marker of multi-radian elbow |
| CN107310307A (en) * | 2017-07-20 | 2017-11-03 | 合肥顺顺信息咨询有限公司 | A kind of compasses for precisely drawing |
| CN112937172A (en) * | 2021-02-26 | 2021-06-11 | 日照职业技术学院 | A multipurpose drawing device for mathematical education |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1088873A (en) | Laterally graduated compasses | |
| CN205395548U (en) | Blackboard for mathematics teaching | |
| CN211054801U (en) | Ellipsograph | |
| US3781995A (en) | Compasses | |
| CN208760270U (en) | A kind of multifunctional angular parallel rule | |
| CN208664724U (en) | A kind of Multifunctional straightedge | |
| CN209566704U (en) | A kind of drawing rule of student majored in science's study | |
| CN208006561U (en) | A kind of new teaching multi-fucntion combined ruler | |
| CN206067321U (en) | A kind of mathematical education Geometric figure drawing special ruler | |
| CN2813329Y (en) | Multifunction special drawing ruler | |
| CN2214301Y (en) | Multipurpose geometric ruler | |
| CN208801779U (en) | A kind of multifunction teaching ruler | |
| CN207345342U (en) | A kind of mathematics drawing instrument | |
| CN206726561U (en) | A kind of practical writing's teaching servicing unit | |
| CN207737022U (en) | Teaching compass ruler | |
| CN219007459U (en) | Folding drawing tool | |
| CN208602174U (en) | A kind of novel multifunctional teaching ruler | |
| CN208544018U (en) | Compasses | |
| CN209719065U (en) | A kind of higher mathematics figure drawing instrument | |
| CN2181411Y (en) | Multifunctional drawing instrument | |
| CN208602151U (en) | A kind of multi-purposed pen | |
| CN206664087U (en) | A kind of novel multi-use Mathematic teaching rule | |
| CN209971997U (en) | Mathematics teaching board | |
| CN201506160U (en) | Ruler-shaped educational compasses | |
| CN208698288U (en) | A kind of planar design multifunctional ruler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |