CN2051895U

CN2051895U - Multifunctional roller parallel ruler

Info

Publication number: CN2051895U
Application number: CN 89204961
Authority: CN
Inventors: 洪恩
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-05-25
Filing date: 1989-05-25
Publication date: 1990-01-31

Abstract

The utility model belongs to a drawing tool, composed of a ruler surface, two rollers having equal diameters, a wheel shaft which is used for connecting the rollers, and a support frame; the wheel shaft which is used for connecting the rollers is paralleled with the ruler surface and a straightedge edge arranged at the front edge of the ruler surface; the two rollers are rotated synchronously. When the ruler body is propelled on a paper surface, the ruler surface can be conducted by the rollers to translate. The parallel lines at a required distance can be drawn through the straightedge edge which is contacted with the paper surface and the vertical graduations which are arranged on the ruler surface. Compared with the prior art, the required parallel lines can be directly drawn on the paper surface by the tool; simultaneously various drawing mould plate reticles on the ruler surface can provide multifunctional tools for drawing, and can accelerate the drawing speed.

Description

Multifunctional roller parallel ruler

The utility model belongs to drawing instrument.

In existing manual drawing instrument, draw parallel lines with T-square, its plotting speed simple to operate is also very fast, but need promote blade by a limit of drawing board (table) when using T-square, and the glacing flatness of this edge of drawing board (table) also directly influences the parallel of the parallel lines that drawn.Therefore do not having to use T-square will feel inconvenient under the not straight situation in drawing board or chart board edge.

The purpose of this utility model provides a kind of easy and simple to handle.Plotting speed is fast, does not rely on other operation can directly push away the simple and easy drawing instrument that draws parallel lines on drawing.

The utility model is achieved in that the chi face of parallel rule by band ruler limit, and two rollers, wheel shaft and axle brackets are formed (seeing accompanying drawing 1).The equal diameters of two rollers of above-mentioned parallel rule, and be separately fixed at the two ends of same wheel shaft so that two rollers are synchronous when rotating.Wheel shaft is answered long enough, so that roller is as far as possible respectively near the position at blade two.The wheel shaft that roller is housed is connected on the chi face by axle bracket.The axis of roller and wheel shaft is parallel to the chi face and also is parallel to the chi ruler limit on edge in front simultaneously.Wheel shaft can rotate in the axle bracket hole.

During drawing, the chi face is lain on the drawing, the ruler edge joint in face of roller and the chi touches paper.When the promotion roller rolled forward or backward, also moved on paper thereupon on the chi limit.Because two rollers rotate synchronously, and roller diameter is identical, so the path of second wheel process just equates that also drive the distance that moves at two ends, chi limit simultaneously and also equate, promptly the chi limit is done parallel mobile on paper.Parallel lines can draw along the chi limit.

The chi face can be a transparent material, is carved with scales such as protractor, engineer's scale, drawing template on the chi face, to constitute multi-functional parallel rule.

Accompanying drawing and embodiment explanation:

Fig. 1 is the utility model embodiment.

Fig. 2 is the protractor central cross-sectional view of Fig. 1

Fig. 3 is that the roller shaft of Fig. 1 is to cutaway view

Fig. 4 is parallel rule placement situation on paper

The situation that Fig. 5 uses for the parallel rule turn-over.

With reference to accompanying drawing: on rectangle chi face 1, ruler scale 8 is arranged, grooves such as vertical line scale 9, protractor scale 10, scribe mark 11, drawing template 4.The roller 5 of two equal diameters is arranged in the bottom of chi face, and second wheel is separately fixed at the two ends of same axis 6, and logical axle bracket 7 is fixed on the chi face.Axle axis is parallel to the chi face, also is parallel to the chi ruler limit 12 on edge in front simultaneously.During drawing, the chi face lies in by on the cartridge paper 14, and the ruler edge joint on edge touches drawing in face of roller and the chi, sees accompanying drawing 4.When the promotion blade was mobile forward or backward, because second wheel can only rotate synchronously, under the guiding of roller, the distance that move at the blade two ends equated that promptly the chi face is done corresponding parallel moving forward or backward on drawing.By the ruler limit parallel lines that can draw.Distance between parallel lines can be determined by the vertical line scale on the chi face 9.

Center at the protractor scale 10 of chi face 1 is equipped with a movable knob 2, and blade can be with the center of circle rotation of knob bottom 3, and the throughput hornwork scale indication angle of drawing and needing.

Accompanying drawing 5 is situations that the upset of chi face is used, and in forward position, obverse ruler limit inclined-plane 13 is arranged, and makes the bottom on chi limit leave drawing 14 so that prevent that when using tracer to draw prepared Chinese ink is along chi limit dip-dye drawing.

Claims

1, the multi-functional parallel rule of a kind of roller type, constitute by two rollers of the chi face on band ruler limit, equal diameters and the wheel shaft and the axle bracket that link roller, it is characterized in that: two rollers are synchronous rotations, and the axis of roller and wheel shaft is parallel to the ruler limit on chi face and the chi face.

2, device according to claim 1 is characterized in that the protractor center on the chi face is provided with the center active button.