CN2286677Y

CN2286677Y - Angle gauge ruler drawing board

Info

Publication number: CN2286677Y
Application number: CN 97203876
Authority: CN
Inventors: 李跃建
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-16
Filing date: 1997-01-16
Publication date: 1998-07-29
Anticipated expiration: 2007-01-16

Abstract

The utility model discloses a drawing board, particularly an angle gauge ruler drawing board. A larger circular hole is arranged at the center of an outer frame board, and a rotating disk which is matched with the circular hole is arranged in the circular hole. Straight edge graduations are marked on the straight line edge of the outer frame board, and the circumference of the rotating disk and the circumference of the center circular hole of the outer frame board are all marked with angular measurement graduations. Pen inserting holes having unequal distance to the center of a circle of the rotating disk are drilled on the rotating disk and the outer frame board. The angle gauge ruler drawing board collects the functions of the ruler, compasses, a protractor to integration, and is convenient in use and carry. The utility model can measure the angle of more than 180 DEG once, and can also draw a central angle with definite radius and definite degrees.

Description

Angle gauge ruler drawing board

The utility model relates to a kind of drawing instrument, particularly a kind of Angle gauge ruler drawing board.

When drawing, often use protractor, compasses, ruler, but every function singleness of three drawing instruments, use is carried all inconvenient, band protractor on the existing in the market set square, but this set square can not be used for picture circle, and on the another kind of drawing board except that having the ruler scale, also be drilled with a lot of apertures, and the picture bowlder is at first used than sharp objects and is inserted a certain circular hole, again according to drawn radius, find another aperture, penholder is drawn circle at this aperture inward turning rendition chart board, and it uses inconvenience, and can not angulation, all protractors that need to prove present use in addition once maximum can only 180 ° of angles, and can't once measure for surpassing 180 ° of angles.

The purpose of this utility model is exactly that a kind of function that integrates protractor, compasses, ruler will be provided, and it is simple in structure, easy to use, can once measure to such an extent that surpass 180 ° angle, and can once do the Angle gauge ruler drawing board of central angle of certain radius, certain angle.

The utility model adopts technical scheme as described below for achieving the above object: be carved with the ruler scale on the straight line of the exterior deckle board of Angle gauge ruler drawing board, can work as ruler uses, there is a bigger circular hole in the central authorities of exterior deckle board, one rotating circular disk identical with this circle hole radius and that cooperate is with it arranged in the circular hole, the circumference of rotating circular disk is carved with 0 °-360 ° angle measuring calibration, one week of exterior deckle board central circular hole also is carved with angle measuring calibration, be drilled with respectively from the rotating circular disk distance of center circle on rotating circular disk and the exterior deckle board from the pen plughole that does not wait, draw bowlder, rotating circular disk and exterior deckle board are linked in together, and make the center of circle of rotating circular disk draw the round center of circle to the residence, finding suitable pen plughole on the rotating circular disk or on the exterior deckle board according to required radius then, rotation rotating circular disk or exterior deckle board can obtain a complete circle.Utilize the angle measuring calibration on the rotating circular disk can measure or draw any one angle rapidly easily.Utilize this Angle gauge ruler drawing board can also once draw easily the central angle of certain radius, certain number of degrees.

Utilize the angle gauge plotter of said structure to integrate the function of ruler, compasses, protractor, easy to use, with low cost, can once measure to such an extent that surpass 180 ° angle, can once do again the central angle of certain radius, certain number of degrees, be a kind of desirable popular drawing instrument.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the distribution schematic diagram of pen plughole on the Angle gauge ruler drawing board.

Fig. 3 is a structure cutaway view of the present utility model.

Fig. 4 is the structural representation of connection strap.

With reference to Fig. 1, Fig. 2, Fig. 3.Angle gauge ruler drawing board comprises exterior deckle board 1 and rotating circular disk 2, there is a bigger circular hole in the central authorities of exterior deckle board 1, the radius of rotating circular disk is identical with the radius of this circular hole and cooperatively interact, it is the platform 6 of 1/2nd exterior deckle board thickness that one circle thickness is arranged on the inner periphery of exterior deckle board central circular hole, the convex edge 7 that has a circle to match with platform 6 on the circumference of rotating circular disk 2 is provided with platform 6 and convex edge 7 rotating circular disk and exterior deckle board are rotated each other flexibly.The shape of exterior deckle board can be a triangle, quadrangle, pentagon, hexagon etc., on their straight line, be carved with the ruler scale that is fit to mapping, the circumference of rotating circular disk is carved with 0 °-360 ° angle measuring calibration, wherein 0 ° of graduation mark and 180 ° of graduation marks prolong and link to each other and the center of circle by rotating circular disk, 90 ° of graduation marks link to each other with 270 ° of graduation marks and by the rotating circular disk center of circle, also be carved with two cover angle measuring calibrations one week of exterior deckle board 1 central circular hole, one cover just is being to carve, another set of scale is anti-the quarter, purpose is to draw bowlder at the rotation exterior deckle board to see conveniently, and the angle measuring calibration on rotating circular disk and the exterior deckle board all is sub-divided into 1 °.

Be drilled with respectively on rotating circular disk 2 and the exterior deckle board 1 from the rotating circular disk distance of center circle from the pen plughole 5,3,4 that does not wait, these pen plugholes are by following regularly arranged: it is on ten bisectors at center that all pen plugholes all are distributed in the rotating circular disk center of circle, and the excentric distance of adjacent two pen plugholes differs 1cm on same the bisector, and differs 1mm at a distance of nearest two pen plugholes to the distance at center on adjacent two bisectors.For example: pen plughole is followed successively by 1.0cm, 2.0cm, 3.0cm, 4.0cm, 5.0cm, 6.0cm to the distance at center on line such as VI grade, and pen plughole 3 on the VI bar bisector and the pen plughole 3 on the VII bar bisector ' be respectively 5.0cm, 5.1cm to centre distance, differ 1mm between them, pen plughole takes this method to arrange, it is more convenient to search corresponding pen plughole on the one hand, it can be as accurate as millimeter and comes picture circle in addition, can adapt to the needs of most applications.Also must illustrate be that intersection at rotating circular disk and exterior deckle board can not punch, it all is anti-also having the pen plughole institute indexing on exterior deckle board, use in the time of can making things convenient for the picture great circle like this, for as far as possible accurately being made again, the definite position of picture bowlder nib inserts pen conveniently, special Cross section Design with pen plughole becomes taper type, pen plughole on the exterior deckle board is opposite with pen plughole on the rotating circular disk, and the shape of pen plughole also can be circular certainly.

Draw bowlder, at first the center of circle of rotating circular disk is aimed at the center of circle of picture circle, found suitable pen plughole according to drawn radius of a circle then, if selected pen plughole is on rotating circular disk, directly with penholder at this pen plughole place, when radius is big, can the driven rotary disk rotate and circle drawn with pen, when radius than hour, the auxiliary rotating circular disk of available hand rotates, if selected pen plughole on exterior deckle board, need use Angle gauge ruler drawing board conversely, the exterior deckle board rotation can be more flexible like this.

Can directly utilize rotating circular disk to come angulation during angulation, also can be with the zero graduation line alignment of rotating circular disk and exterior deckle board, and make the summit of the center of circle alignment angle of rotating circular disk, make a limit of zero graduation line alignment angle, pin exterior deckle board, rotate rotating circular disk and make another limit of its zero graduation alignment angle, this moment exterior deckle board the zero graduation line the scale on the right rotating circular disk be the number of degrees at this angle.

When making central angle, find the center of circle and the center of circle of rotating circular disk is overlapped with it, exterior deckle board is alignd with the zero graduation line of rotating circular disk, penholder is gone in the pen plughole corresponding with radius, pin exterior deckle board,, rotate rotating circular disk according to the required number of degrees, make this scale on its zero graduation line aligning exterior deckle board, promptly obtain the central angle of the required number of degrees of required radius.

With reference to Fig. 4.Because of rotating circular disk separates with exterior deckle board, carry for convenience, also design has connection strap 8, there are a lot of rubber to transplant a cutting 9,10 on the connection strap 8, when Angle gauge ruler drawing board time spent not, the rubber strip on the connection strap 8 is inserted in the pen plughole on the same straight line, they can be linked together.

Claims

1, a kind of Angle gauge ruler drawing board is carved with the ruler scale on the straight line of its exterior deckle board (1), it is characterized in that: there is a bigger circular hole in the central authorities of exterior deckle board (1), and a rotating circular disk (2) identical with its radius and that cooperate is with it arranged in this circular hole; The circumference of rotating circular disk (2) is carved with 0 °-360 ° angle measuring calibration, exterior deckle board (1) central circular hole a week also be carved with angle measuring calibration; Be drilled with respectively from the rotating circular disk distance of center circle from the pen plughole that does not wait (5), (3), (4) on rotating circular disk (2) and the exterior deckle board (1).

2, Angle gauge ruler drawing board according to claim 1, it is characterized in that: it is the platform (6) of 1/2nd exterior deckle board thickness that a circle thickness is arranged on the inner periphery of exterior deckle board (1) central circular hole, the convex edge (7) that has a circle to match with platform (6) on the circumference of rotating circular disk (2).

3, Angle gauge ruler drawing board according to claim 1, it is characterized in that: it is on ten bisectors at center that all pen plugholes all are distributed in the rotating circular disk center of circle, and the excentric distance of adjacent two pen plugholes differs 1cm on same the bisector, differs 1mm at a distance of nearest two pen plugholes to the distance at center on two adjacent two bisectors.

4, according to claim 1,2 or 3 described Angle gauge ruler drawing boards, it is characterized in that: the cross section of pen plughole is taper or circle.

5, according to claim 1,2 or 3 described Angle gauge ruler drawing boards, it is characterized in that: exterior deckle board (1) can be triangle, quadrangle, pentagon, hexagon.