CN2095107U

CN2095107U - Multifunctional arbitary angle gradation rule

Info

Publication number: CN2095107U
Application number: CN 91215455
Authority: CN
Inventors: 苏栋人
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-14
Filing date: 1991-05-14
Publication date: 1992-02-05

Abstract

The utility model relates to a multifunctional angle-square which can draw any angles, belonging to a novel drawing tool, and combined by a fixed ruler, a movable ruler and a circular protractor. The movable ruler and the fixed ruler are equal in length and width. One end of either of the movable ruler and the fixed ruler is semicircular. The circular protractor is fixed on the fixed ruler, and the movable ruler can rotate around the fixed ruler. Integrated with multiple functions of a protractor, a set-square and a straightedge ruler, the utility model can be used as a drawing for engineers and is the superior learning articles for primary and secondary school students.

Description

Multifunctional arbitary angle gradation rule

The utility model relates to a kind of multi-functional any angle to chi, belongs to the drawing instrument technical field.

When existing protractor is drawn any angle, draw straight line with ruler earlier, decide the angle with protractor then and draw point, draw another line with ruler again, operate more complicated, need change instrument back and forth, and be difficult for the picture standard.

The purpose of this utility model is that design is a kind of with protractor and ruler, has the function of ruler and protractor simultaneously, can directly draw any angle.

The multi-functional any angle of the utility model is to chi, form by scale, moving chi and round angle resolver etc., scale one end is semicircle, both sides are the centimetre groove, round angle resolver periphery has 0 to 360 ° of five equilibrium groove, moving chi equates that with the scale length and width end also has a dead slot for semi-circular scale along center line, Yi Bian moving chi limit and middle dead slot all have a centimeter groove.Moving chi semicircle, scale semicircle and round angle resolver three radius are identical, and all there is axis hole at the center, and round angle resolver is inserted in scale semicircle central shaft, and fixes with scale, and its 0 degree groove and scale center line coincide.(round angle resolver also can directly be engraved on the scale), moving chi semicircle axle center and scale semicircle axle center are fixed by securing member, are movingly.When moving chi rotated, moving chi center line and round angle resolver intersected shown scale, and promptly moving chi and scale intersect angle.

Provide a specific embodiment of the present utility model below in conjunction with accompanying drawing.

Accompanying drawing is a structure chart of the present utility model.

1 is scale among the figure, and 2 is round angle resolver, and 3 are moving chi, and 4 is securing member, and 5 is the scale center line, and 6 are moving chi center line, 7 moving surely chi central channels.

In the utility model, round angle resolver periphery has 72 to wait the branch groove, and groove is spaced apart 5 degree, can reach the precision of 1 degree for making the picture angle, and 2 points (among the figure 8,9) are respectively arranged on the crossing both sides, position of moving chi center line and round angle resolver periphery.Have in outer 2 a bit with round angle resolver on groove when coincideing, moving chi deducts four degree or adds four degree for this groove reading with scale angle reading, have in interior 2 a bit with round angle resolver on groove coincide, the angle reading is spent or is added three degree for this line reading deducts three between moving chi and the scale, so just can make the picture angular accuracy can reach 1 degree (5-4=1,5-3=2,0+3=3,0+4=4,10-4=6,10-3=7,5+3=8,5+4=9).In addition, moving chi scale reading on one side is postponing of scale scale reading, like this, when moving chi and the scale angle of cut are 180 °, just can be used as the ruler use of a prolongation.

The utility model is a kind of novel drawing instrument, and the multiple function of collection protractor, set square, three kinds of drawing instruments of ruler is an one, both can make engineering technical staff's drawing instrument, can make pupils and students' good study article again.

Claims

A kind of multi-functional any angle is to chi, comprise ruler and angle resolver, feature of the present utility model is, by scale, moving chi, round angle resolver combines, scale one end is semi-circular, both sides are the centimetre groove, round angle resolver periphery has 0 to 360 ° of five equilibrium groove, moving chi equates that with the scale length and width end also has a dead slot for semi-circular moving chi along center line, Yi Bian moving chi limit and middle dead slot all have a centimeter graduation mark, moving chi semicircle, the scale semicircle, round angle resolver three radius is identical, all there is axis hole at the center, and round angle resolver is inserted in scale semicircle central shaft, and fixes with scale, its 0 degree groove and scale center line coincide, (round angle resolver also can directly be engraved on the scale), moving chi semicircle axle center and scale semicircle axle center are fixed by securing member, are movingly.