CN201941406U

CN201941406U - Convenient graduated scale

Info

Publication number: CN201941406U
Application number: CN2011200672284U
Authority: CN
Inventors: 陆建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-10
Filing date: 2011-03-10
Publication date: 2011-08-24
Anticipated expiration: 2021-03-10

Abstract

The convenient graduated scale is common stationery and widely used in the study and the work and changes the existing scale method that the straight scale uniformly takes the left as a start. For the convenient graduated scale, one side still takes the left as the start; and the other side takes the central point as the start, and the scales sequentially extend towards the left and the right. For the set-square, the right-angle sides take the right-angle vertex as the start, and the scales sequentially extend towards the left and the right; and the hypotenuse takes the central point as the start with the scales sequentially extending towards the left and the right. For the central point taken as the start of the extension towards the left and the right, the scale mark extends to the opposite side. With the adoption of the convenient graduated scale, users can make the graphics fast, conveniently and accurately when making the convenient graphics; faults can be decreased; and the convenient graduated scale can offer more convenience for the study and the work, therefore, the efficiencies of the study and the work are high.

Description

Make things convenient for rule

Technical field

The rule that makes things convenient for of the present invention is a kind of stationery commonly used in applying to widely learn, work.

Background technology

Present various rulers of selling on the market (comprising various rulers such as ruler, set square) all are that the left side with ruler is that starting point is carried out scale, when needing to do to make things convenient for figure, also need own definite central point, use very inconvenient.In people's study, work, should consider how to map, think deeply again where being starting point, also want zequin to where being only easily, do not note slightly, be easy to the error that occurs mapping, thereby cause whole mistakes, particularly in examination for entering school, make mistakes slightly and then cause immeasurable loss.

Summary of the invention

The rule that makes things convenient for of the present invention, change existing ruler without exception all on the left side be the scale method of starting point, one side what adopt ruler still is starting point with the left side, the another side of ruler is starting point with the central point, then the method for scale successively to the left and right sides; The right-angle side of set square is a starting point with the summit, right angle, scale successively to the left and right sides, and hypotenuse then is starting point with the central point, then the method for scale successively to the left and right sides; Central point be starting point to the left and right sides the elongation center of scale put to opposite side.

Present various rulers of selling on the market (comprising various rulers such as ruler, set square) all are that the left side with ruler is that starting point is carried out scale, when needing to do to make things convenient for figure, also need own definite mid point, use very inconvenient.In people's study, work, particularly numerous students in middle and primary schools, should consider how to map, think deeply again where to be starting point, also want zequin, do not note slightly to where being only easily, be easy to the error that occurs mapping, thereby cause whole mistakes, particularly in examination for entering school, make mistakes slightly and then cause immeasurable heavy losses.

The rule that makes things convenient for of the present invention can reduce error doing to make things convenient for to make figure in the figure fast, easily and accurately, for study, work provide more convenience, makes the efficient of study, work higher.

Description of drawings

Fig. 1, ruler; Fig. 2, set square 1; Fig. 3, set square 2.

The specific embodiment

In the ruler of Fig. 1, the A limit makes things convenient for rule for invention, is starting point scale to the left and right sides successively with the central point, and elongation center's line is to the B limit, is convenient to make make things convenient for figure and vertical line; The B limit is traditional ruler of scale from left to right, make to make things convenient for figure and draw straight line, vertical line is all more convenient.

In the set square of Fig. 2, the A limit is starting point scale to the left and right sides successively with the central point, and central point inwardly extends to edge, A limit; B limit and C limit are the scale starting point with the summit, right angle, carve scale to both sides successively.

In the set square of Fig. 3, the A limit is starting point scale to the left and right sides successively with the central point, and central point inwardly extends to the summit, right angle; B limit and C limit are the scale starting point with the summit, right angle, carve scale to both sides successively.

Claims

1. one kind makes things convenient for rule, it is characterized in that: on one side of ruler is that starting point is carried out scale with the left side, and the another side of ruler is starting point scale successively to the left and right sides with the central point; The right-angle side of set square is a starting point with the summit, right angle, scale successively to the left and right sides, and hypotenuse is starting point with the central point then, to both sides scale successively; Central point be starting point to the left and right sides the elongation center of scale put to opposite side.