CN2227030Y - Easy-used compasses - Google Patents
Easy-used compasses Download PDFInfo
- Publication number
- CN2227030Y CN2227030Y CN 95210401 CN95210401U CN2227030Y CN 2227030 Y CN2227030 Y CN 2227030Y CN 95210401 CN95210401 CN 95210401 CN 95210401 U CN95210401 U CN 95210401U CN 2227030 Y CN2227030 Y CN 2227030Y
- Authority
- CN
- China
- Prior art keywords
- scale
- compasses
- motion bar
- staff
- size
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a pair of convenient compasses, wherein, a staff in a circular arc shape is installed on a pair of general compasses composed of a handle, a positioning rod, a moving rod, etc., one end of the staff is fixed on the positioning rod, the other end of the staff points to the moving rod, and the size of the scale on the staff pointed by the moving rod is the size of the radius of a drawn circle. The utility model has the advantages of convenient fabrication and easy use and is suitable for being used by primary and secondary school students.
Description
The utility model relates to a kind of compasses, especially the compasses of being made up of handle, backstay and motion bar.
The structure that comes to this of the common compasses of Chu Shouing in the market, when drawing bowlder, the size of in addition to reserve drawn radius of circle with ruler is drawn circle again, and it is convenient inadequately to use.
The purpose of this utility model provides a kind of Convenient compasses that can directly indicate the size of drawn circle.
For achieving the above object, the utility model is that a scale is installed on the common compasses of being made up of handle, backstay and motion bar etc.; Scale is the circular arc thin slice, and the scale circular arc is the center of circle with a turning point of motion bar, and an end of scale is fixed on the backstay, and the other end points to motion bar; Scale size on the motion bar institute cuing scale is drawn radius of a circle size.
Because scale is installed, can directly indicate the size of drawn circle, easy to use.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a structural representation of the present utility model.Also as Figure of abstract.
On the common compasses of being made up of handle (1), backstay (2) and motion bar (3) etc., installation one has the circular arc scale (4) of scale, and circular arc is the center of circle with a rotating shaft heart of motion bar.One end of scale embeds in the motion bar and by rivet (5) and is installed on the backstay, and the other end passes motion bar, has triangle perspective window (6) in the motion bar relevant position, and the size of triangle drift angle point indication scale label is drawn radius of a circle size.In addition, also can make the size of coming the indicator scale scale by the motion bar inboard.
Claims (1)
1, a kind of Convenient compasses of forming by handle, backstay and motion bar, it is characterized in that: a scale is housed on the compasses bar, and scale is the circular arc thin slice, and the scale circular arc is the center of circle with a turning point of motion bar, one end of scale is fixed on the backstay, and the other end points to motion bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210401 CN2227030Y (en) | 1995-04-28 | 1995-04-28 | Easy-used compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210401 CN2227030Y (en) | 1995-04-28 | 1995-04-28 | Easy-used compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227030Y true CN2227030Y (en) | 1996-05-15 |
Family
ID=33861136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95210401 Expired - Fee Related CN2227030Y (en) | 1995-04-28 | 1995-04-28 | Easy-used compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227030Y (en) |
-
1995
- 1995-04-28 CN CN 95210401 patent/CN2227030Y/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 |