CN2141772Y - Reading compasses - Google Patents
Reading compasses Download PDFInfo
- Publication number
- CN2141772Y CN2141772Y CN 92244952 CN92244952U CN2141772Y CN 2141772 Y CN2141772 Y CN 2141772Y CN 92244952 CN92244952 CN 92244952 CN 92244952 U CN92244952 U CN 92244952U CN 2141772 Y CN2141772 Y CN 2141772Y
- Authority
- CN
- China
- Prior art keywords
- compasses
- motion bar
- joint
- radius
- reading
- 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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Abstract
The utility model relates to a reading compasses which can be used for reading and obtaining radius values. The reading compasses has double functions of a compasses and the radius values can be read directly on the reading compasses, which is convenient. The utility model is characterized in that the lower part of the positioning rod of the reading compasses is widthwise provided with a movable rod (in '+'-shaped) through a joint, the movable rod and the joint are respectively provided with dimension scales and radius index marks, and one head of the movable rod is provided with a brush. When the reading compasses is used, required radius values are found on the movable rod and the required radius values are aligned to the radius index marks on the joint. Then a fixing bolt is screwed for drawing circles. Consequently the utility model realizes the purpose of directly obtaining the radius values for drawing the circles on the reading compasses.
Description
The utility model relates to the compasses that a kind of directly reading is got radius value.
Past, what people generally used is the forked type compasses, this compasses have the shortcoming of a maximum in use, can't directly obtain the radius of a circle value exactly, and after must measuring radius value from ruler earlier, required circle can draw just from compasses, in order to find radius value accurately, sometimes to pull the lane to compasses back and forth and could aim at scale on the ruler several times, both time-consuming, inconvenient again.
The purpose of this utility model is that a kind of direct reading compasses will be provided.Owing to the utlity model has the dual-use function of compasses and ruler, thus radius value can directly on compasses, be obtained, thus simply and effectively solved the common compasses direct reading shortcoming of getting radius value in use.
The purpose of this utility model is achieved in that at first, the utility model has adopted distinguished "+" font structure, wherein endways one is called backstay, sidewards one is called motion bar, motion bar is connected with backstay by the joint of backstay bottom, and can move around in joint.Being carved with on the motion bar with the millimeter is the scale of unit, is carved with the radius cue mark on the joint, and during with the radius cue mark on a certain size scale aligning joint on the motion bar, this size is promptly represented the drawn radius of a circle value of these compasses this moment.One of motion bar is equipped with the paintbrush folder, in order to the various paintbrushes of clamping (being example with bullet type pencil nib here).The backstay bottom also has a set bolt, is used for fixing motion bar and joint.Secondly, these compasses are "+" fonts when using, and are also collapsible when not using, at this moment, only need joint, and motion bar, the centre nib rotates to the position parallel with backstay and gets final product.When these compasses use, unscrew the bolt of joint earlier, putting down motion bar makes it to become "+" font with backstay is vertical, pull the paintbrush folder and make the paintbrush nib down, radius of a circle value by required picture finds corresponding scale on motion bar then, with the radius cue mark on this scale aligning joint, tighten set bolt again, can draw required circle by common compasses construction method.So also just realized the purpose of direct reading picture circle.
The utility model is simple in structure, and required parts are also few, and processing easily, and the producer also can carry out appearance design according to the aesthetic conceptions of oneself, so the utility model also is easy to design and produces concerning factory.
Concrete structure of the present utility model is provided by accompanying drawing.
Describe the details and the using method of the concrete structure that the utility model proposes in detail below in conjunction with accompanying drawing.
These compasses decide bolt (7), written (8), handle parts such as (9) by motion bar (5), backstay (4), joint (2), paintbrush folder (10), motion bar and joint set bolt (1), paintbrush clamping and are formed.Wherein, being carved with the millimeter on the motion bar (5) is the size scale of unit, be carved with radius cue mark (3) on the joint (2), get the accuracy of radius value in order to guarantee, the center of circle pin (11) of backstay (4) bottom is fixing dead, simultaneously, is carved with written position of center line mark (6) on the paintbrush folder (10), no matter use what paintbrush, its written center line must align with this centre mark (6).In addition, joint (2) and nib folder (10) are all rotatable, can make compasses be in work or folding position.Wherein, paintbrush folder (10) gets final product left rotation and right rotation, also can the front and back rotation.During use, turn on joint and motion bar set bolt (1), put down motion bar (5) and make itself and perpendicular "+" font that is of backstay (4), rotary picture pen clip (10), make nib (8) move on to the back side (one side of no scale of motion bar (5), this is to be on same the radius for the center that makes nib (8) and center of circle pin (11)), and then to right rotation nib folder (10), make nib (8) and motion bar (5) perpendicular, and make nib downward, on motion bar (5), find corresponding scale by drawn radius of a circle value then, and with the radius cue mark (3) on this scale aligning joint (2), tighten joint and motion bar set bolt (1) again, so far, preparation is finished, and the center of circle pin (11) of backstay (4) is aimed at centre point, pinch handle (9) rotation, just can draw required circle.The duty of these compasses is shown in accompanying drawing (a).When need changing nib (8), only need unscrewing the paintbrush clamping, to decide bolt (7) promptly replaceable.After using, releasable joint and motion bar set bolt (1) turn back the folding position to motion bar, tighten set bolt (1) again, pull paintbrush folder (10) simultaneously, also make it into the folding position.State after these compasses are folding is shown in accompanying drawing (b).
Claims (4)
1, a kind of directly reading is got the compasses of radius value, these compasses have a moveable bar (5) and a backstay (4), it is characterized in that motion bar (5) and backstay (4), be connected by joint (2), motion bar (5) can move around in joint (2), motion bar (5) can be by motion bar set bolt (1) with its fixed-site, and one of motion bar (5) is equipped with a paintbrush folder (10).
2, compasses according to claim 1, it is characterized in that being carved with the millimeter on the motion bar (5) is the size scale of unit, is carved with radius cue mark (3) on the joint (2).
3, compasses according to claim 1 is characterized in that motion bar (5) and backstay (4) when being in the operating position, are corresponding vertical, and when being in the folding position, the two is a respective parallel.
4, compasses according to claim 1 is characterized in that being carved with written center mark (6) on the paintbrush folder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92244952 CN2141772Y (en) | 1992-12-20 | 1992-12-20 | Reading compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92244952 CN2141772Y (en) | 1992-12-20 | 1992-12-20 | Reading compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141772Y true CN2141772Y (en) | 1993-09-08 |
Family
ID=33784070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92244952 Expired - Fee Related CN2141772Y (en) | 1992-12-20 | 1992-12-20 | Reading compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141772Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941346A (en) * | 2010-10-27 | 2011-01-12 | 唐供宾 | Compass |
| CN104191873A (en) * | 2014-09-19 | 2014-12-10 | 河海大学常州校区 | Multifunctional radius-adjustable compasses with scales |
-
1992
- 1992-12-20 CN CN 92244952 patent/CN2141772Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941346A (en) * | 2010-10-27 | 2011-01-12 | 唐供宾 | Compass |
| CN104191873A (en) * | 2014-09-19 | 2014-12-10 | 河海大学常州校区 | Multifunctional radius-adjustable compasses with scales |
| CN104191873B (en) * | 2014-09-19 | 2016-06-15 | 河海大学常州校区 | A kind of multi-functional diameter-adjustable compasses with a scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |