CN102774184A

CN102774184A - Cleaning-type drawing ruler with high locating accuracy

Info

Publication number: CN102774184A
Application number: CN201110286457XA
Authority: CN
Inventors: 刘洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-23
Filing date: 2011-09-23
Publication date: 2012-11-14

Abstract

The invention designs a cleaning-type drawing ruler with high locating accuracy. The cleaning-type drawing ruler comprises a main ruler and auxiliary rulers, wherein the main section body of the main ruler is triangular, the upper end of the main ruler is circular, and a triangular gap is formed at the lower part of the main ruler; and holes are respectively formed at the two ends of each auxiliary ruler, and metal bars are fixed in the holes. When the cleaning-type drawing ruler is used, the two auxiliary rulers are respectively arranged on the two short edges of a drawing board and are fixed by long-tail letter clips respectively, and the main ruler is matched with the metal rods on the two auxiliary rulers by virtue of U-shaped slots at two ends; and during the use of the cleaning-type drawing ruler, the two auxiliary rulers are fixed, and the main ruler can move up and down along the auxiliary rulers. The main ruler moves by sliding up and down along the metal rods, thereby ensuring the levelness of the T-shaped ruler; and by virtue of scales on the auxiliary rulers, the precious positioning of the main ruler is achieved. When being used for drawing, the T-shaped ruler is slightly pressed to be fixed and then is used for drawing.

Description

High position precision clean type drawing ruler

Affiliated technical field

The present invention designs a kind of high position precision clean type drawing ruler, specifically is meant a kind of servicing unit of realizing the drawing accurate Drawing.Belong to operation, Department of Transportation, printing branch, write or drawing appliance by the International Patent Classification (IPC) division; The assistant product group of writing or draw, the ruler technical group field.

Background technology

T-square is claimed T shape chi again, is " fourth " font ruler that an end has crosspiece, is made up of mutually perpendicular chi head and blade, generally adopts transparent lucite to process, and 600mm is arranged, 900mm, three kinds of specifications of 1200mm.T-square is picture horizontal line and the instrument that cooperates the set square mapping, has widely at aspects such as Graphing of Engineering, architectural design, teaching and uses.The part of the weak point of T-square and chart board left lateral sides were parallel when the handling characteristics of T-square was drawing pastes mutually, guarantees that the long part of T-square is concordant with the drawing level, thereby carries out drawing protract.Shortcoming be when the figure panel edges because of permanent when using not linearly, the levelness of T-square reduces, positioning accuracy is very poor at a distance apart from left end for right-hand member, can occur the uneven phenomenon in long limit of T-square and chart board length limit usually, influences drawing quality and precision.In addition, use traditional T-square surface constantly to contact, tend to be stained with the graphite of pencil in running fix and the drawing process, thereby drawing is polluted with drawing.

Summary of the invention

In order to improve the shortcoming that traditional T-square is in use located inaccuracy and made drawing easily dirty; The present invention has designed a kind of high position precision clean type drawing ruler that can realize accurately locating and improving the drawing cleannes; Not only can effectively address the above problem; And it can provide dimension reference more easily when being used to draw, and helps accurately drawing more and improves drawing efficiency.

The technical solution adopted for the present invention to solve the technical problems is: comprise main scale and auxilliary chi, main scale cross section main body is a triangle, and the upper end is circular, and a vee is arranged at the bottom, and respectively there is a hole at auxilliary chi two ends, fixing metal bar in the hole.

During use, two auxilliary chis are placed on two minor faces of chart board respectively and use the long-tail ticket-holder to fix respectively, and main scale cooperates with metal bar on two auxilliary chis through the U type groove at two ends, and two auxilliary chis are fixed in the use, and main scale can move up and down along auxilliary chi.Main scale slides up and down along metal bar and realizes moving of main scale, has guaranteed the levelness of T-square; By means of the scale on the auxilliary chi, the accurate location of realizing main scale.During drawing, the T-square flicking with fixing, is drawn then.

Beneficial effect of the present invention is: (1) auxilliary chi has two, lays respectively at the chart board two ends, guarantees that through the metal bar on the auxilliary chi and the cooperation of main scale main scale is parallel with the long limit of chart board all the time, reduces error; (2) the main scale cross section is special-shaped shape, is far smaller than traditional T-square with the drawing contact area, can effectively improve the drawing pollution condition in the drawing course; (3) the auxilliary chi at two ends all has scale, and corresponding each other, can make no matter the illustrator is can obtain sizing easily at the chart board left end or when right-hand member is drawn, the convenient drawing; (4) main scale is a transparent design, and two big hypotenuses all have scale, makes things convenient for the illustrator in drawing course, when the main scale upper and lower sides is drawn, to reduce amount of movement, improves drawing efficiency.

Material of the present invention mainly is a lucite, and two metal bars of auxilliary chi are the stainless steel steel, can effectively reduce friction.Material source of the present invention is extensive, produces in batches cheaply, is applicable to the update of the drawing rule of vast colleges and universities.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

Fig. 1 is the general assembly sketch map that the present invention is used for the A0 chart board.1,3 is auxilliary chi, and 2 is chart board, and 4 is main scale, and 5 is the long-tail ticket-holder.

Fig. 2 (a) is a main scale vertical view of the present invention.

Fig. 2 (b) is the partial enlarged drawing of main scale vertical view.6 is scale, and 7 is U-lag.

Fig. 2 (c) is the partial enlarged drawing of main scale front view.6 is scale, and 7 is U-lag.

Fig. 2 (d) is the sectional view of main scale.7 is U-lag, and 8 is circular position, and 9 is vee.

Fig. 2 (e) is a main scale axonometric drawing partial enlarged drawing.6 is scale, and 7 is U-lag, and 8 is circular position, and 9 is vee.

Fig. 3 (a) is an auxilliary chi vertical view of the present invention.

Fig. 3 (b) is the partial enlarged drawing of its auxilliary chi vertical view.10 is the size dead-center position, and 11 is scale, and 12 is metal bar.

Fig. 3 (c) is auxilliary chi partial isometric.11 is scale, and 12 is metal bar, and 13 is the hole that is used to install metal bar on the auxilliary chi.

Fig. 3 (d) is the sectional view of auxilliary chi.13 is the hole that is used to install metal bar on the auxilliary chi.

Fig. 4 is a long-tail ticket-holder pictorial diagram.

Fig. 5 is long-tail ticket-holder result of use figure.1 is auxilliary chi, and 2 is the A0 chart board, and 5 is the long-tail ticket-holder.

The specific embodiment

Advantages such as present embodiment is a kind of drawing rule of the A0 of being used for drawing board, and more traditional T-square has the location more accurate, and it is more efficient to draw, and list of drawing surface pollution degree is little.Describe for convenient, this embodiment is an example with following method for using.

This embodiment technical scheme realizes according to following steps: 1, will assist chi (1) and be placed on the A0 chart board (2) that is stained with the A0 drawing; Auxilliary chi (3) aligns with A0 chart board (2) minor face, aligns and use long-tail ticket-holder (5) will assist chi (1) two ends with the long limit of A0 chart board (2) and be clamped on the A0 chart board (2) in auxilliary chi (1) two ends.2, will assist the U-lag (7) that metal bar (12) on the chi (3) is put into main scale (4), the U-lag (7) with main scale (4) other end cooperates with the metal bar (12) of the auxilliary chi (1) that has placed then.3, the position of the auxilliary chi (3) of adjustment makes its position corresponding with auxilliary chi (1), and the two ends of using long-tail ticket-holder (5) will assist chi (3) then are clamped on the A0 chart board (2).Main scale this moment (4) can rely on the moving up and down in the parallel planes that fit into of U-lag (7) and auxilliary chi (1) and auxilliary chi (3).The scale (11) that can use main scale (4) to aim at auxilliary chi (1) or auxilliary chi (3) during drawing is realized longitudinal register; Realize the horizontal direction location according to the scale (6) on the main scale (4) then; Only need pinch main scale (4) upper rounded position (8) when moving main scale (4) and lift from paper, move to correct position and put down main scale (4) again or directly move main scale (4) on paper and get final product.

Claims

1. high position precision clean type drawing ruler; Specifically be meant a kind of servicing unit of realizing the drawing accurate Drawing, comprise a main scale and two auxilliary chis that structure is identical, it is characterized in that: main scale cross section main body is a triangle; The upper end with for the circle; A vee is arranged at the bottom, and respectively there is a hole at auxilliary chi two ends, fixing metal bar in the hole.

2. drawing ruler according to claim 1 is characterized in that: respectively there is a U-lag that matches with the metal bar of auxilliary chi at the main scale two ends.

3. drawing ruler according to claim 1 is characterized in that: main scale all indicates scale on two big inclined-planes, one side auxilliary chi indicate scale and scale zero in the centre position.