CN2306892Y

CN2306892Y - Simple multipurpose drawing rule

Info

Publication number: CN2306892Y
Application number: CN 97239803
Authority: CN
Inventors: 伊伟鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-22
Filing date: 1997-07-22
Publication date: 1999-02-10
Anticipated expiration: 2007-07-22

Abstract

The utility model relates to a simple multipurpose drawing rule used for students. One end of a straight ruler with scale and angle is provided with a vertical ruler which can form one straight ruler with the straight ruler. The middle of the straight ruler is parallelly provided with a thin and long through groove which can be penetrated through by a pen nib at intervals. The straight ruler is movably hinged with a small straight ruler which is provided with the graduation and a small through hole. Owing to the reasonable structure, the drawing rule can directly plot circles, sectors, parallelograms, coordinate systems, and various figures. The utility model with lower price and simple operation is especially suitable for the use of primary and secondary school students.

Description

The simple and easy drawing rule of using more

The utility model belongs to learning tool, relates in particular to a kind of student and use drawing rules more with simple and easy.

Commercially available now simple and easy drawing tool kind is more, but their most function singlenesses, ruler, though set square can't be drawn circle and angulation and have be called " isograph ", also just combine set square, protractor, several functions such as parallel scale, still not directly draw circle and fan-shaped figures, often need just can finish the drafting of different graphic by other multiple instrument, this for the user particularly the student bring many inconvenience and loaded down with trivial details, middle and primary schools survive in addition usually needs setting-out to draw squares, when using ruler and set square its ruling be difficult for evenly and speed slower, influence student's learning efficiency.

Be to provide a kind of use easy and simple to handle based on above reason the purpose of this utility model, utilize a kind of instrument just can directly finish simple and easy drawing rules of using that multiple different graphic is drawn more, this drawing rule need not to measure radius can be with the nib required circle and fan-shaped that directly draws, no expense hornwork just can be drawn angle, angulation quickly and easily, and setting-out is accurately and quickly drawn squares and drawn simple parallelogram rapidly.

The utility model is realized with following technical scheme for achieving the above object: it comprises the ruler that indicates exact scale and protractor angle, an end of ruler be provided with its at right angles and indicate the perpendicular chi of scale, the centre of ruler is provided with many elongated grooves that spaced and parallel can penetrate nib, the center that indicates angle at ruler is movably hinged with the little ruler that can rotate and indicate scale flexibly, is provided with a plurality of small through hole that penetrate nib with its scale corresponding position on the little ruler.

Hinged place between ruler and little ruler is provided with the thimble that can make little ruler one end fixing, and the thimble below is provided with and can and makes its top top spring that does not expose the ruler bottom surface with thimble jack-up.

The utility model compared with prior art, combine the advantage of various simple drawing tools, draw circle and need not compasses and tolerance radius, available ball pen and pen directly draw, draw right angle and coordinate system and need not to use set square, draw the angle, angulation need not protractor, utilize a kind of instrument of the utility model just can draw multiple different graphic, and using the utility model to rule accurately and quickly draws squares, parallel lines and simple parallelogram very rapidly draw, therefore the utility model use is easy and simple to handle, has overcome multiple instrument and has used the shortcoming that just can finish the loaded down with trivial details shortcoming of graphic plotting and carry inconvenience, has conveniently, fast, cheap, the characteristics of " one-object-many-purposes " are particularly suitable for numerous students in middle and primary schools and popularize use, and market potential is wide.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the utility model structural representation;

Fig. 2 is that Figure 1A is to the broken section enlarged drawing.

With reference to Fig. 1, how basis is simple and easy comprises the ruler 1 that indicates exact scale and protractor angle with drawing rule, the left end of ruler 1 be provided with ruler 1 at right angles and indicate the perpendicular chi 2 of scale, perpendicular chi 2 is provided with the module 7 of oval and regular pentagon standard shape, the centre of ruler 1 is provided with spaced and parallel, can penetrate two elongated grooves 3 of nib, between the two elongated grooves 3 and and ruler about in the of 1 the distance between the two edges be 0.8cm, the two edges of the edge of elongated groove 3 and ruler 1 all indicate scale, the center that indicates the protractor angle at ruler 1 is movably hinged with the little ruler 4 that can rotate and indicate scale flexibly, be provided with the small through hole 5 that can penetrate nib with the every interval 0.2～0.5cm in its scale corresponding position on the little ruler 4, can establish a plurality of small through hole 5 continuously on its little ruler 4, be provided with the link stoppers 8 that can prevent that little ruler 4 from arbitrarily rotating at the right-hand member of ruler 1.

Referring to Fig. 2, ruler 1 is provided with the center of circle thimble 6 that can make little ruler 4 one ends fixing with little ruler 4 hinged places, and thimble 6 belows are provided with and can and make its top top spring 9 that does not expose ruler 1 bottom surface with thimble 6 jack-up.

When using the utility model, the right hand edge of the top edge of ruler 4 and perpendicular chi 2 indicates scale, the rectangular co-ordinate that can directly draw, and the right angle of the different length of sides that also can draw as required, it is more more convenient and overcome the shortcoming that the right angle head damages easily than using set square;

The edge of the lower limb of ruler 4 and elongated groove 3 all indicates scale, its setting-out more accurately and reliably, nib passes elongated groove 3 during use, many parallel lines that once can draw continuously also can be rule accurately and quickly and be drawn squares and draw simple parallelogram rapidly;

When picture is round or fan-shaped, earlier thimble 6 being pressed, the little ruler 4 and the hinged place of ruler 1 are fixed, is the center of circle with thimble 6, according to required radius of a circle, nib is penetrated in the small through hole corresponding with its scale on the little ruler 45, rotate nib, nib drives little ruler 4 and ruler 1 rotates together, just the circle of different radii and fan-shaped etc. can draw, when finishing using, top spring 9 is thimble 6 jack-up, and makes its top ruler 1 bottom surface of not exposing.When drawing angle, angulation, be that little ruler 4 is rotated on the summit with thimble 6, the angle value by ruler 1 directly draws or the angle that measures the different number of degrees need not use little ruler 4 time, its round end can be snapped in the block 8 to prevent its any rotation.

The module 7 of other standard shape also can be set on the perpendicular chi 2 as required.

Claims

1. simple and easy drawing rules of using more, it comprises the ruler (1) that indicates exact scale and protractor angle, an end that it is characterized in that described ruler (1) is provided with the perpendicular chi (2) that is the angle with it and indicates scale, the centre of ruler (1) is provided with spaced and parallel, can penetrates many elongated grooves (3) of nib, the center that indicates angle at described ruler (1) is movably hinged with the little ruler (4) that can rotate and indicate scale flexibly, and described little ruler (4) is gone up and its scale corresponding position is provided with a plurality of small through hole (5) that penetrate nib.

2. the simple and easy drawing rules of using according to claim 1 more, it is characterized in that straight (4) hinged place of described ruler (1) and described little chi is provided with the thimble (6) that can make little ruler (4) one ends fixing, described thimble (6) below is provided with and can and makes its top top spring (9) that does not expose described ruler (1) bottom surface with thimble (6) jack-up.

3. according to claim 1ly simple and easyly many use drawing rule, it is characterized in that described ruler (1) centre is provided with two elongated grooves (3).

4. according to claim 1 simple and easyly use drawing rule more, it is characterized in that to be provided with as required on the described perpendicular chi (2) module (7) of various standard shape.

5. according to claim 1 and 2ly simple and easyly many use drawing rule, an end that it is characterized in that described ruler (1) is provided with and can prevents the arbitrarily block (8) of rotation of little ruler (4).

6. according to claim 4ly simple and easyly use drawing rule, what it is characterized in that described module (7) is shaped as ellipse and regular pentagon more.