CN2330524Y

CN2330524Y - Multipurpose rule gage

Info

Publication number: CN2330524Y
Application number: CN 98228883
Authority: CN
Inventors: 雷学明
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-23
Filing date: 1998-05-23
Publication date: 1999-07-28
Anticipated expiration: 2008-05-23

Abstract

The utility model provides a multipurpose rule gage, which is composed of four rulers, and the inner side and the outer side of each ruler are marked with scales. The utility model is characterized in that the both ends of each ruler are provided with an internally tangent circumference which is marked with degrees, and the center of circle is provided with a small hole in which a screw can be inserted; the middle point of the central cross-cutting position of the ruler is provided with a perpendicular bisector, a sliding slot is arranged between the middle point and the center of circle of one end of the ruler, a cross-cutting middle line is arranged between the middle point and the center of circle of the other end of the ruler, and the middle line is provided with a plurality of small holes. The utility model combines the functions of a compasses, a ruler, a protractor, a triangle, etc., the utility model can be used for constructing a plurality of polygons, the utility model is simple in mapping and has high efficiency, and the utility model can be used as a replacement of the existing teaching mapping tools.

Description

Multipurpose ruler rule

The utility model belongs to drawing appliance, a kind of multipurpose ruler rule.

Existing multiple teaching drawing appliance, as compasses commonly used, ruler, protractor, set square or the like, function singleness, drawing method is cumbersome, efficient is low, can not construct multiple polygon, thereby in the several teaching because of knowledge abstraction, the student is difficult for understanding and mastering.

This practical new purpose is the above-mentioned shortcoming that overcomes existing mathematics drawing appliance, designs a kind of comprehensive drawing function such as compasses, ruler, protractor, set square of both having had, and can construct multiple polygon again, the drawing appliance that drawing method is easy, efficient is high.

The purpose of this utility model reaches by the design of following multipurpose ruler rule.It mainly is made up of four function chis, every inside and outside both sides chi indicate scale, be characterized in, every the two ends of chi are all had an inscribe circumference, circumference is marked with as degree, 60 degree, 90 degree, 120 degree, 150 degree, 180 degree angle numbers, the little lattice of each of circumference are represented 5 degree or 1 degree, and circle centre position has an aperture for the screw insertion; The central transverse location midpoint of chi has a perpendicular bisector AB, to a transversal center line is arranged the other end center of circle, every 0.5CM has some apertures on it from midpoint, for the nib that inserts various hard-tipped pen such as pen, pencil, ball pen.As required, can use one separately the function chi, also available bolt connects two, three, four the function chi, constitutes multiple quadrangle or triangle.

Fig. 1 is a function chi structural representation;

Fig. 2 is three function chi structure embodiment;

Fig. 3 is four function chi structure embodiment.

1. 3. eyes of interior tangent plane 2. screw holes, 4. transversal center line 5.AB line 6. chutes

In the practicality, utilize function chi said structure, can follow one's bent and make circle, arc, angular bisector, vertical line, parallel lines, polygon or the like geometric figure.Below in conjunction with accompanying drawing the utility model function and using method are described further.

One, draw circle, flat, annulus, fan ring.The hard-tipped pen point is put into the pen eye 3 of appropriate location, is the center of circle with screw hole Z, and function chi rotation one brush is got final product.

Two, do fan-shaped.By the required radius line segment isometric that draws with radius, with line segment one end points is the center of circle, function chi screw 2 center of circle therewith overlaps, the hard-tipped pen point is put into the pen eye of appropriate location, be that the center of circle rotates to the appropriate location one section arc that draws with the screw, then the arc two ends be connected with the center of circle and promptly get institute and ask fan-shaped.

Make annulus, fan ring method and last similar.

Three, make vertical line.The AB line is overlapped with known line, as required, make line along function chi limit and intersect with it and get final product.

Four, make parallel lines.Fix a function chi earlier, make another function chi keep moving up and down along chute 6 then with its angle, along the setting-out of attachable mechanical stage edge get final product parallel lines.

Five, the structure triangle joins three function chis with bolt, and its chi end center of circle selects the center of circle can become equilateral triangle.Slide three the summit of chi along chute, can construct right angled triangle, obtuse triangle again.

Six, structure and change quadrangle.With four bolts four function chis are connected into a rectangle mutually, can constitute parallelogram, rectangle, rhombus, trapezoidal again by chute 6 slip rulers as required, can be changed mutually between the different quadrangles.

The utility model has thoroughly changed the structure and the method for designing of traditional compasses, ruler, protractor, set square, only needs to put the hard-tipped pen point into the pen eye and can tube just makes geometric figures such as circle, arc, ring be fan-shaped quickly on demand.Polygons such as the triangle of being constructed, quadrangle, visual in image, third dimension is strong, and conversion easily between each figure, and difference and contact between polygon are come into plain view, and is convenient to teaching.

Claims

1. a multipurpose ruler is advised, constitute by four function chis, the inside and outside both sides of chi indicate scale, it is characterized in that every all there is an inscribe circumference (1) at the two ends of function chi, circumference is marked with 30 degree, 60 degree, 90 degree, 120 degree, 150 degree, the 180 degree isogonism number of degrees, the little lattice of each of circumference are represented 5 degree or 1 degree, circle centre position has an aperture (7) for the screw insertion, function chi central authorities transverse location midpoint has a perpendicular bisector AB, one chute (6) is arranged between the center of circle of the end circumference from the midpoint to the chi, mid point has some apertures every 0.5CM to a transversal center line (4) is arranged between the center of circle of other end circumference on it, for the nib that inserts various hard-tipped pen.

2. according to the described multipurpose ruler rule of claim 1, its feature also is with every the function chi to be connected with bolt in circle center, can be combined into polygons such as triangle, quadrangle on demand.