CN2477400Y - Protractor - Google Patents
Protractor Download PDFInfo
- Publication number
- CN2477400Y CN2477400Y CN 01237947 CN01237947U CN2477400Y CN 2477400 Y CN2477400 Y CN 2477400Y CN 01237947 CN01237947 CN 01237947 CN 01237947 U CN01237947 U CN 01237947U CN 2477400 Y CN2477400 Y CN 2477400Y
- Authority
- CN
- China
- Prior art keywords
- main scale
- protractor
- ruler
- secondary chi
- angle square
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a protractor which is composed of a main ruler and an auxiliary ruler, wherein one end of the main ruler is provided with a semicircular protractor, and one end of the auxiliary ruler is hinged with the centre of circle of the protractor. While in use, the protractor can be used as a general flat ruler after combing the main ruler and the auxiliary ruler; the auxiliary ruler can be opened according to the graduation of the protractor on the main ruler to measure or draft an angle, which is convenient to operation. The utility model has the advantages of simple structure, economy, practicability and multiple functions and can better satisfy the requirements of carpenters and the requirements of decorative industry.
Description
The utility model relates to a kind of measuring appliance, especially a kind of dip stick with multiple function.
Ruler is the most frequently used survey tools of people.Understand according to the applicant, the multifunctional ruler that protractor and set square are integrated is arranged in the existing student appliance, yet this chi can't directly be drawn required angle, so purposes is limited.In addition,, there is not length mapping function though panel beating, cold working bevel protractor commonly used can directly be drawn the angle that configures, and complex structure, cost an arm and a leg, be not suitable for industries uses such as carpenter, decoration.
The purpose of this utility model is: the problem at above-mentioned existing multifunctional ruler with angle mapping function exists proposes a kind of simple in structure, economical and practical angle square, thereby provides even more ideal multifunctional ruler for industries such as carpenter, decorations.
In order to achieve the above object, angle square of the present utility model is made of main scale and secondary chi, and wherein an end of main scale is semicircle protractor, and an end and the main scale of secondary chi are hinged at the circle centre position of protractor.
In the use, when the main scale of angle square and secondary chi merge, can be used as common ruler and use; And need to measure or when drawing angle, as long as it is open secondary chi, very convenient by the scale of main scale protractor.Be not difficult to find out that the utility model is simple in structure, economical and practical, the many usefulness of a chi can satisfy the demand of industries such as carpenter, decoration preferably.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of an embodiment of the utility model.
Angle square among Fig. 1 comprises main scale 1 and the secondary chi 2 that transparent material is made, one end of main scale 1 is semicircle protractor, one end of secondary chi 2 is shaped on the circular arc that equates with main scale 1 protractor radius, hinged with main scale 1 at the circle centre position of protractor, the ruler Duan Jun of secondary chi 2 and main scale 1 is carved with symmetrical center line, and the symmetrical center line of the symmetrical center line of secondary chi 2 and main scale 1 ruler section is all passed through pin joint.
During use, main scale 1 and secondary chi 2 are merged, promptly can be used as common ruler; And when opening secondary chi 2, just can measure or draw the angle of being illustrated as the protractor scale by the main scale 1 and the crossing of secondary chi 2, very convenient.When main scale 1 flattens with secondary chi 2, can be used as long chi, prolong the line segment of drawing.In addition, present embodiment also has profile advantage carefully and neatly done, attractive in appearance.
When adopting opaque material to make angle square, can make the groove of hollow out in main scale ruler section and secondary chi symmetrical center line place, be installed with the transparent body of sign in the groove, the same like this angle that can observe the protractor demonstration.
Claims (4)
1. an angle square is made of main scale and secondary chi, it is characterized in that: an end of described main scale is semicircle protractor, and an end and the main scale of described secondary chi are hinged at the circle centre position of protractor.
2. angle square according to claim 1 is characterized in that: described main scale and secondary chi are made with transparent material, and an end of secondary chi is shaped on the circular arc that equates with main scale protractor radius.
3. angle square according to claim 2 is characterized in that: the ruler Duan Jun of described secondary chi and main scale is carved with symmetrical center line, and two symmetrical center line are all passed through pin joint.
4. angle square according to claim 1 is characterized in that: described main scale and secondary chi are made of opaque material, and main scale ruler section and secondary chi symmetrical center line place are shaped on the groove of hollow out, are installed with the transparent body of sign in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01237947 CN2477400Y (en) | 2001-05-24 | 2001-05-24 | Protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01237947 CN2477400Y (en) | 2001-05-24 | 2001-05-24 | Protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2477400Y true CN2477400Y (en) | 2002-02-20 |
Family
ID=33650658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01237947 Expired - Fee Related CN2477400Y (en) | 2001-05-24 | 2001-05-24 | Protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2477400Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022193289A1 (en) * | 2021-03-19 | 2022-09-22 | 余光明 | Protractor |
-
2001
- 2001-05-24 CN CN 01237947 patent/CN2477400Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022193289A1 (en) * | 2021-03-19 | 2022-09-22 | 余光明 | Protractor |
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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 |