CN2129221Y - Multi-purpose ruler - Google Patents
Multi-purpose ruler Download PDFInfo
- Publication number
- CN2129221Y CN2129221Y CN 92216784 CN92216784U CN2129221Y CN 2129221 Y CN2129221 Y CN 2129221Y CN 92216784 CN92216784 CN 92216784 CN 92216784 U CN92216784 U CN 92216784U CN 2129221 Y CN2129221 Y CN 2129221Y
- Authority
- CN
- China
- Prior art keywords
- ruler
- utility
- roller
- model
- graduation
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a multi-purpose ruler, which comprises a straightedge having graduation; the utility model is characterized in that a ruler body is provided with a convex circle, in which is provided with rollers; the roller is provided with helical line shape graduation, and the corresponding position of the convex circle of the ruler body to is provided with longitudinal graduation. The rollers of equal circle of the utility model are in the same plane, and are rotated in the same direction simultaneously; by using the principle of the parallel translation of the axial lead, parallels can be plotted conveniently; the separation distance of the parallels can be determined with accuracy and direct viewing by the intersecting of the curve arranged on the roller and the graduation of the ruler body. The utility model can also be used as a protractor and compasses.
Description
The utility model relates to a kind of stationery, particularly a kind of multipurpose ruler.
Common drawing instrument commonly used now is ruler (angle square), draw many parallel lines with this chi and bother very much, and the line of drawing out is usually not parallel, drawing circle and angle simultaneously also need have compasses, protractor etc., not only complex operation, and multiple instrument carries also inconvenient.
The purpose of this utility model provides a kind of novel chi, and it can overcome existing shortcoming in the prior art, can mark parallel lines easily, and can measure its spacing.
The purpose of this utility model is achieved in that it comprises the ruler that has scale, it is characterized in that the chi body has dome, and roller is housed in the dome, has spiral yarn shaped scale on the roller, and the corresponding position of chi body dome has vertical scale.
Circle rollers such as the utility model utilization at grade, rotate in the same way simultaneously, its axial line is made parallel mobile principle, draws out parallel lines easily, utilize curve on the roller and the scale on the chi body to cross simultaneously, determine the spacing of parallel lines accurate and visually.
Can also be provided with the hole of half-round compasses and circle, ellipse or other common shape on the chi body of the present utility model in addition, can also have aperture, penholder is gone into promptly and can be used as compasses at the scale line end of ruler.
Below in conjunction with embodiment and accompanying drawing thereof the utility model is described in further detail.
Fig. 1 is the chi face schematic diagram of a kind of most preferred embodiment of the present utility model.
Fig. 2 is the side view of Fig. 1.
As seen from the figure, chi body 1 top is the ruler that has scale, the bottom has vertical dome, roller 5 is housed in the dome, end cap 3 is equipped with at chi body dome two ends, hinged between roller and the end cap by axle sleeve 6 and steady pin 2, be carved with helix in roller surface, be carved with vertical scale 4 on the chi body dome, when roller rotates, by observing crossing of helix and vertical scale, can draw the spacing of parallel lines, have the aperture 8 of φ 1, stop nail 7 is inserted in the hole at ruler scale line end, penholder is gone into another hole, promptly can be used as compasses and use, on the chi body, also be provided with the circular hole of half-round compasses and various diameters, for the student learns conveniently, various formula can be imprinted on the paper slip, be attached in the roller then.
Claims (4)
1, a kind of multipurpose ruler, it comprises the ruler that has scale, it is characterized in that the chi body has dome, and roller is housed in the dome, has spiral yarn shaped scale on the roller, the corresponding position of chi body dome has vertical scale.
2, multipurpose ruler according to claim 1 is characterized in that chi body ruler scale line end has aperture.
3, multipurpose ruler according to claim 1 is characterized in that the chi body is provided with the perforate of half-round compasses and different shape.
4, multipurpose ruler according to claim 1 is characterized in that posting in the roller paper slip of various student's common-used formulas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216784 CN2129221Y (en) | 1992-08-18 | 1992-08-18 | Multi-purpose ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216784 CN2129221Y (en) | 1992-08-18 | 1992-08-18 | Multi-purpose ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2129221Y true CN2129221Y (en) | 1993-04-07 |
Family
ID=33764845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92216784 Expired - Fee Related CN2129221Y (en) | 1992-08-18 | 1992-08-18 | Multi-purpose ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2129221Y (en) |
-
1992
- 1992-08-18 CN CN 92216784 patent/CN2129221Y/en not_active Expired - Fee Related
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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 |