CN2459182Y - Compasses capable of wantonly fixing radius of drawn circle - Google Patents
Compasses capable of wantonly fixing radius of drawn circle Download PDFInfo
- Publication number
- CN2459182Y CN2459182Y CN 00262451 CN00262451U CN2459182Y CN 2459182 Y CN2459182 Y CN 2459182Y CN 00262451 CN00262451 CN 00262451 CN 00262451 U CN00262451 U CN 00262451U CN 2459182 Y CN2459182 Y CN 2459182Y
- Authority
- CN
- China
- Prior art keywords
- fixed
- compasses
- circle
- supporting leg
- center
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a pair of compasses capable of randomly fixing the radius of a drawn circle. A supporting structure with an inner arc-shaped sliding chute is additionally arranged on the middle upper parts of two legs of the existing compasses, and the size of the supporting structure can be fixed by a fixing screw and a fixing screw cap. An attaching pen is fixed on the legs by the fixing screw which can be slid in an arc-shaped slideway, and the supporting structure is fixed to the leg of the center of a circle. In addition, a long and thin tip of a tip end of the leg of the center of the circle is changed to a blunt tip, and errors can be reduced. The disadvantage that the two legs of the existing compasses are fixed unsteadily is overcome by the utility model.
Description
The utility model relates to a kind of improved drawing compass, the particularly a kind of compasses that can fix drawn radius of a circle arbitrarily.
Present compasses with some days after because two supporting legs of compasses are fixing unstable, make the drawn circle that comes out inaccurate, in addition, because the tip of the center of circle supporting leg of compasses is not only thin but also long, penetrate in the paper deep mixed, the radius of a circle size that also making draws comes is unfixing, produces error.
Task of the present utility model provides a kind of novel bow compass, and it can fix the drawn radius of a circle that comes out arbitrarily, and the tip of center of circle supporting leg changes blunt point into, can reduce error.
Task of the present utility model is finished as follows: compasses two supporting legs are opened, after having measured size on the lattice chi, tighten the fixed screw cap on the fixed screw that can in fixed mount arc slideway, slide two supporting leg middle and upper parts, two supporting leg distance between two tips are fixed, in addition, the elongated point at the tip of the center of circle supporting leg of compasses is changed into blunt point, can reduce error.
Below with reference to accompanying drawing utility model is described in further detail.
Fig. 1 is the utility model structural representation.
With reference to Fig. 1, one has the center of circle supporting leg [1] of good mechanical strength and there is a fixed mount that is used for fixing two supporting leg distance between two tips [3] that has the arc slideway middle and upper part of [2] two supporting legs of postscript supporting leg, one of fixed mount [3] is fixed on the center of circle supporting leg [1], fix the fixed screw [4] of a thin thread that can slide in the arc slideway on the fixed mount [3] on the postscript supporting leg [2], fixed screw cap [5] is to adopt the cap nut have the thin thread that being beneficial to of two leaf lobes turn.
During use, the center of circle supporting leg [1] and the postscript supporting leg [2] that change blunt point into are opened, after having measured size on the lattice chi, tighten fixed screw cap [5] and can fix two supporting leg distance between two tips, hold post [6] and rotating shaft [7] and just can draw and justified with hand-held stopping, the circle that draws like this is just accurate.
Claims (3)
1. compasses by center of circle supporting leg [1], postscript supporting leg [2], fixed mount [3], fixed screw [4], fixed screw cap [5], hand-held post [6] and rotating shaft [7] formation, the middle and upper part that it is characterized in that the center of circle supporting leg [1] of compasses is fixed with a fixed mount [3] that has the arc slideway, the middle and upper part of postscript supporting leg [2] is fixed with the fixed screw [4] of a thin thread that can slide in arc is sliding, fixed screw cap [5] is the cap nut that has the thin thread of two leaf lobes.
2. by the compasses of claim 1 regulation, it is characterized in that fixed mount [3] and center of circle supporting leg [1] be split or one.
3. by the compasses of claim 1 regulation, the tip that it is characterized in that center of circle supporting leg [1] is blunt point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00262451 CN2459182Y (en) | 2000-11-30 | 2000-11-30 | Compasses capable of wantonly fixing radius of drawn circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00262451 CN2459182Y (en) | 2000-11-30 | 2000-11-30 | Compasses capable of wantonly fixing radius of drawn circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459182Y true CN2459182Y (en) | 2001-11-14 |
Family
ID=33617710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00262451 Expired - Fee Related CN2459182Y (en) | 2000-11-30 | 2000-11-30 | Compasses capable of wantonly fixing radius of drawn circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459182Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515275A (en) * | 2016-12-23 | 2017-03-22 | 卢竞冬 | Compasses |
-
2000
- 2000-11-30 CN CN 00262451 patent/CN2459182Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515275A (en) * | 2016-12-23 | 2017-03-22 | 卢竞冬 | Compasses |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2459182Y (en) | Compasses capable of wantonly fixing radius of drawn circle | |
| CN2468757Y (en) | Multi-functional compass for teaching use | |
| CN201148077Y (en) | Big compasses | |
| CN2197226Y (en) | Multifunctional magnet compass | |
| CN208812809U (en) | A kind of multifunctional pen | |
| CN201077280Y (en) | Ruler for schoolchild | |
| CN87215825U (en) | Graph plotter for archimedes spisral | |
| CN201009591Y (en) | Campass with scale | |
| CN2182075Y (en) | Two purpose gauge for drawing circle and ellipse | |
| CN200963988Y (en) | Portable compasses | |
| CN2227030Y (en) | Easy-used compasses | |
| CN201109306Y (en) | Novel drafting calipers | |
| CN2300520Y (en) | Measuring-drawing combined drawing instrument | |
| CN201291683Y (en) | Novel compasses special for blackboard | |
| CN2618776Y (en) | Multifunction compasses | |
| CN201148073Y (en) | Accurate compasses | |
| CN203228551U (en) | Novel compass | |
| CN208698288U (en) | A kind of planar design multifunctional ruler | |
| CN2053575U (en) | Length-adjustable compasses for direct teaching | |
| CN204712727U (en) | A kind of compasses of improvement | |
| CN201143848Y (en) | Compass | |
| CN201148069Y (en) | Multifunctional ruler | |
| CN2544967Y (en) | Multifunctional convenient quick drawing instrument | |
| CN2749696Y (en) | Novel ellipsograph | |
| CN201092186Y (en) | Compass pen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |