CN2488702Y - Roler for drawing balanced line - Google Patents

Abstract

The utility model relates to a teaching article, in particular to a balancing line multifunctional ruler. The existing rulers are not easy to draw the balancing line and can not draw the usual angle. The utility model is provided with a plurality of usual balancing lines and angle assisting lines on the surface of the prior common transparent ruler. Each balancing line has an interval of one centimeter with the neighboring balancing line; each angle line separates fifteen degree; and the angle line which is vertical with the ruler edge and the ruler edge are both provided with millimeter scale lines. Therefore the utility model makes the balancing line have a wide use. The utility model is mainly applicable to the drawing engineer and the student ruler.

Description

The multi-functional ruler of balanced line

Affiliated technical field

The utility model relates to a kind of realia, refers in particular to the multi-functional ruler that can draw parallel lines and angle commonly used more expeditiously.

Background technology

At present, known ruler structure is to be carved to be attached on the rectangular transparent plastic by millimeter graduation mark and corresponding scale to be made.Ruler is pressed close to smooth body surface can on ruler, read distance between two points, and can be along the ruler limit on object point-to-point transmission draw straight line.When needs are drawn parallel lines, retouch out two points that equate to air line distance in the same side of existing straight line, link again at these 2 and make parallel lines.But parallel lines of every work all will use above several steps, and this has just reduced the operating efficiency of mapping.In addition, general ruler is difficult to make angle commonly used (as 30 degree, 45 degree, 60 degree etc.), when the such angle of needs, just need use that set square or protractor are auxiliary maps.

Summary of the invention

Draw the deficiency that angle commonly used is hanged down and can not directly be drawn to parallel lines efficient in order to overcome existing ruler, the utility model provides a kind of ruler, this ruler can not only be drawn parallel lines apace, and the angle commonly used that can draw out easily at a distance of 15 degree (is spent as 15 degree, 30 degree, 45 ...).

The technical method that its technical problem that solves the utility model adopts is: the sets of parallel and the angle line group that add spacing commonly used on the vacant position on existing ruler surface.Every parallel lines are at a distance of 1 centimetre, and every angle line is at a distance of 15 degree.And all engrave a millimeter graduation mark on every angle line vertical and the ruler side with millimeter scale limit.When needs were made parallel lines, suitable graduation mark was adjacent to a certain straight line on the object on selected angle line or the ruler side chi limit, can make the parallel lines of required separation distance along the chi limit.When needs are made angle commonly used, be adjacent to a certain line segment on the object with suitable angle line, and make the chi limit pass through the end points of line segment, can make required angle commonly used.

The beneficial effects of the utility model are, can make apace must parallel lines and angle line commonly used, only be on existing ruler, to add suitable sets of parallel, millimeter graduation mark and angle line group.

Description of drawings further specifies the utility model below in conjunction with drawings and Examples:

Fig. 1 is the perspective effect figure of ruler embodiment.

Fig. 2 is the planar effect picture of ruler embodiment.

Fig. 3 is the ruler cross sectional representation.

1. balanced line groups among the figure, 2. angle line group, 3. graduation mark, 4. scale limit, 5. vertical angle line.

The specific embodiment

In Fig. 1, the ruler specification is 40 centimetres, and sets of parallel (1) has three parallel lines, and article one parallel lines are 1 centimetre from scale limit (4), and every parallel lines are again successively at a distance of 1 centimetre.Article three, to place scale respectively be 6 centimetres, 20 centimetres and 34 centimeter scale line places to vertical angle line (5), and a newly-increased thereon millimeter graduation mark (3).With the vertical angle line (5) of 6 centimeters and the intersection point of the 3rd parallel lines is end points, and every left increase by 15 degree carve 1 angle line, and terminal point is scale limit (4).These angle lines have constituted the angle line group of 6 centimeters.In like manner can draw the angle line group (2) of 20 centimeters and 34 centimeters.Both sides at every vertical angle line (5) and chi all engrave a millimeter graduation mark, engrave millimeter scale and scale numbering on the scale limit at last, promptly finish the making of the multi-functional ruler of this balanced line.In order to keep graduation mark and angle line high-visible, can reduce graduation mark or scale numbering in case of necessity.

Claims (8)

1, a kind of ruler, on existing ruler surface, combine by sets of parallel, angle line group, newly-increased millimeter graduation mark, it is characterized in that: sets of parallel and angle line group intersect, all only on same parallel lines, newly-increased millimeter graduation mark is on vertical angle line and ruler side for the intersection point of each group angle line.

2, ruler according to claim 1 is characterized in that: 1 centimetre on article one parallel lines distance scale limit, every adjacent parallel lines are at a distance of 1 centimetre.

3, ruler according to claim 1 is characterized in that: three groups of angle line groups are arranged on the ruler, and every angle line is at a distance of 15 degree in the angle line group.

4, ruler according to claim 1 is characterized in that: every angle line all intersects at the intersection point of the last item parallel lines and vertical angle line on the ruler surface.

5, angle line group according to claim 3, it is characterized in that: the angle line group on the left side with the intersection point be the end points direction left, the angle line group on the right with the intersection point be the end points direction to the right, middle angle line group with the intersection point be the end points direction to both sides, the terminal point of angle line is the scale limit.

6, angle line group according to claim 5 is characterized in that: the angle line group on the left side and the right all has only 5 angle lines, and middle angle line group has 11 angle lines.

7, ruler according to claim 1 is characterized in that: newly-increased millimeter graduation mark is vertical with millimeter graduation mark on the existing ruler.

8, ruler according to claim 1 is characterized in that: the ruler material uses transparent plastic.

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