CN87215646U

CN87215646U - Multi-purpose ruler

Info

Publication number: CN87215646U
Application number: CN 87215646
Authority: CN
Inventors: 杨寿明
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-11-15
Filing date: 1987-11-15
Publication date: 1988-06-29

Abstract

The utility model discloses a multi-purpose ruler belonging to a drawing instrument of a cultural good, which is a good tool for learning plotting for primary and middle school students and is suitable for plotting for scientific and technical personnel. The multi-purpose ruler is that a straightedge, a protractor, a scale of bisecting a circle, an orthogonal coordinate grooving, a plotting circle structure, etc. are reasonably assembled on a ruler. The layout is felicitous, and one ruler has multiple functions.

Description

Multi-purpose ruler

The utility model multipurpose ruler belongs to the cultural goods drawing instrument.

Ruler, set square, protractor, garden rule are drawing basic tools.On a chi,, be people's drawing instruments commonly used with moment ruler, protractor.The patent No. 85203682 isographs have been opened two right angles fluting on the chi face, utilize the trough rim drawing of ruling, very big superiority is arranged on function, still, in most of the cases, just can deal with problems with right angle, the right fluting, right angle, left side fluting Practical significance is little, but on system chi technology, two right angle grooving processes difficulty are big, product mechanical strength competitive list right angle fluting is poor, so under many circumstances, two right angles fluting seems impracticable, and it is more to promote the use of difficulty.

Purpose of the present invention is to keep changing some unreasonable part in the former design under the isograph advantage situation, making multipurpose ruler more reasonable more practical, can satisfy different objects to the multipurpose ruler requirement easilier, and particularly students in middle and primary schools need.

This novel multi-use chi and the isograph following several aspect of having compared is different.(1) isograph is emphasized two rectangular co-ordinate flutings, and multipurpose ruler is carried the rectangular co-ordinate fluting, and meaning promptly can be that fluting is sat at a right angle, also can be many rectangular co-ordinate flutings.(2) isograph is emphasized the parallel graduation mark of axle in length and breadth, and multipurpose ruler is carried parallel graduation mark.(3) isograph proposes to be carved with ruler on the chi face, and engineer's scale, multipurpose ruler are carried and be carved with the length scale.(4) isograph is different in the design of garden Equant ruler with multipurpose ruler.The purpose of above-mentioned these modifications is to make multipurpose ruler more help the needs by the different users, from ruler appearance and size, system chi technology, system chi raw material, ruler mechanical strength, composite factor angles such as product price are considered the ruler design, make multipurpose ruler more practical, more help promoting the use of.

The multipurpose ruler advantage: (1) multipurpose ruler designer's guiding theory is rectangular co-ordinate notion the most basic in the elementary mathematics, by open the method for trough with straight angle on the chi face, is applied to go in the design of chi class, so the rectangular co-ordinate fluting is the architectural feature of multipurpose ruler.What be associated with this feature is that multipurpose ruler is different with general ruler set square on using method, general ruler set square mainly is to utilize the drawing of ruling of ruler outward flange, and multipurpose ruler mainly is to utilize the drawing of ruling of trough with straight angle edge, rule with the set square outward flange, be difficult to correctly mark fast angle line, even in addition any angle, special angle has been said nothing of at 30 ° of 45 ° of 60 ° of 90 ° of special angles commonly used.But utilize multipurpose ruler trough rim and trough rim one side protractor just can correctly mark arbitrarily angled line fast.(2) in line is drawn, remove extra curvature, the most basic is three class straight lines, i.e. vertical line, parallel lines, arbitrarily angled line.Be difficult in the market find with a ruler and just can draw vertical line, parallel lines and arbitrarily angled line easily and fast.Multipurpose ruler utilizes the inside groove line, has opened up with a chi and has drawn three class straight line paths fast, so multipurpose ruler can replace multiple drawing instruments such as ruler, set square, protractor, plays a chi multi-purpose function.Promoting the use of of it will inevitably be improved mapper employee and be made efficient and work quality.(3) multipurpose ruler can be drawn vertical line, parallel lines, arbitrarily angled line and garden five equilibrium with several different methods, and the user can select best graphing method as the case may be.Help developing students in middle and primary schools' intelligence like this.

Fig. 1 is the utility model multipurpose ruler embodiment plane

Number in the figure is

1, is the length scale.2, be the rectangular co-ordinate fluting.

3, be protractor.4, be parallel graduation mark.

5, be evenly divided garden, garden groove.6, be the garden Equant ruler.

7, be ellipse garden groove.8, be the hyperbolic wire casing.

9, be heart hole, garden.10, be small garden hole.

11, be semi-round groove.

This novel multi-use chi can be designed to different profiles, but be good with rectangle generally because of ruler size and function needs, below in conjunction with embodiment of the invention Fig. 1, is described as follows:

1, is the length scale.Students in middle and primary schools generally use 1:1 Proportional straightedge scale.The drawing personnel of industrial and mining enterprises use chi, can also be carved into the engineer's scale of different proportion around chi.In order to dwindle the appearance and size of chi, can also be only at the trough rim scale, other places do not graduate.2, be the rectangular co-ordinate fluting.General rectangular co-ordinate fluting can also be opened two or more rectangular co-ordinate flutings as required.3, be protractor.Generally with 1 ° as the unit scale, be reduction volume hornwork radius, can also 2 ° of office's scales.4, be parallel graduation mark, generally use the transverse axis graduation mark, can also be in length and breadth the axle parallel graduation mark.5, be evenly divided garden, garden groove.Can paint garden usefulness, can also behind the garden of painting, utilize the garden evenly divided above it to make the garden five equilibrium.6, be the garden Equant ruler.Scale calculates like this above it, and example numeral 6, meaning be promptly garden five equilibrium Saturday, whenever is divided into 360 °/6=60 °, and protractor is half garden, so be attached to above it three graduation marks of garden Equant ruler corresponding to 60 ° 120 ° 180 °.In like manner, we can calculate 5 five equilibriums, and corresponding angle is 72 °, 144 °.Garden Equant ruler scale is scribed out by the mentioned above principle five equilibrium.7, be ellipse garden groove.8, be the hyperbolic wire casing.7 and 8 couples of high school students are more suitable with chi, and primary school, junior school student are just improper.9, be heart hole, garden.Be to paint structure axle center, garden, can form by protruding pipe in heart hole, garden and location up and down screw two parts, also can fix the hour hand point axle center that rotates at shaft core position as isograph.10, be small garden hole.The guiding ruler deadweight penetrates needle point in the paper when painting the garden, and pencil inserts small garden hole, touches small garden hole and just can paint the garden.11, be semi-round groove.

The basic structure of the utility model multipurpose ruler is the rectangular co-ordinate fluting, and a side of groove is the length scale, and opposite side is protractor and parallel graduation mark.The correct or remove as the case may be of other each several parts.

Claims

1, a kind of multipurpose ruler of cultural goods drawing instrument is carved with length scale, protractor.It is characterized in that having on the chi face mutually perpendicular rectangular co-ordinate fluting (2), a side of groove is length scale (1), and opposite side is protractor (3), with parallel graduation mark (4);

2, by the said multipurpose ruler of claim 1, it is characterized in that having on the chi face garden Equant ruler (6) and evenly divided garden, garden groove (5);

3, by the said multipurpose ruler of claim 1, it is characterized in that the garden of the painting structure that has heart hole, garden (9) and small garden hole (10) to be formed on the chi face.