CN86202941U

CN86202941U - Multipurpose ellipsograph

Info

Publication number: CN86202941U
Application number: CN 86202941
Authority: CN
Inventors: 杨光黉
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-05-06
Filing date: 1986-05-06
Publication date: 1987-02-04

Abstract

The utility model discloses a multipurpose ellipsograph which is suitable for various occasions which relate to ellipses. The multipurpose ellipsograph comprises slots which are cross and communicated, each slot is provided with a slide block and a long ruler, and a through slot is arranged above the long ruler. The two slide blocks are connected with the long ruler by the through slot, and the surface of the long ruler is provided with an element which can be slid and is provided with a pencil, a knife, etc. For drawing ellipses. A complete ellipse figure can be obtained by rotating the long ruler for 360 DEG on a plane for drawing an ellipse.

Description

Multipurpose ellipsograph

The utility model relates to a kind of improved multipurpose elliptic instrument, both has been fit to all drawing personnel and has drawn ellipse, also is fit to engineers and technicians and cuts oval plastic plate, the glass plate etc. decorated.

Existing ellipsograph, simple person mainly is a slice plastic plate, row has several from childhood to big above, the little ellipse of the solid shape that goes out by the plastic cement die casting, this has a kind of shape to represent in the time of can only being limited to the little figure of picture, fail to follow one's inclinations like that by own the ellipse long and short shaft required size is drawn, this just causes inconvenience to some drawing personnel.

Other has a kind of double rail type ellipsograph, is to be contained in above the flat metallic rod with same direction by a pin, metal minor axis pin, metal major axis pin, and two T font guide rails have a draw runner in each guide rail, be combined into ellipsograph.To get other one during work chi made measurer, mix up major axis pin and minor axis pin and a pin distance, after aiming at elliptical center and major axis with guide rail then, the major axis pin is inserted draw runner top aperture, minor axis is close to guide rail major axis limit, and the ellipse that draws from left to right half is adjacent to previous guide rail with another guide rail, previous guide rail is removed with drawing a picture second half oval guide rail in the location, utilizes a back guide rail to finish a full ellipse from right to left.It is oval to utilize the method to draw, can only be limited on the paper, method extremely bothers, and the draftsman is when using the method to draw, if there is not exercise through after a while, draw a figure, with ten paper, the metal minor axis spur that eight, nine quilts of possibility touch the slip of guide rail edge is cut, or fail to control the minor axis pin because of the control of hand is bad and walk about at the edge of guide rail, the ellipse general who draws is shapeless or ellipse is not closed.

Sale person just has the ellipsograph of above-mentioned several style in the market, and this all has many inconveniences to the user.

The utility model provides a kind of improved multipurpose elliptic instrument, can solve the many disadvantages of above-mentioned existence, can a thing one usefulness expand one-object-many-purposes to again.

The following mode of task of the present utility model is finished: two grooves that cross one another separately or protrude and be fixed on the plate face, this two groove interconnects, there is a slide block every groove the inside, the shape of groove can stop slide block to be deviate from slip, groove and slide block loose fit are to guarantee the required precision of drawn ellipse.One small sircle hole that is used for fixing is arranged in the middle of the slide block, available screw is with one long chi being connected to each other above two slide blocks, the shape of long chi can be according to circumstances fixed with requiring collapsible, built-in or interconnection system, or form such as single lever-type, but and size in the top as required mint-mark, can have the groove of certain-length in the middle of the long chi on demand, preferably there is a guide face recessed around the groove, this long chi can change 360 ° around two grooves, long chi is connected two tie points with slide block in the crossed grooves respectively by groove can be regulated, and preferably indicates size on long chi and the groove on it.

On described long chi, the sliding part that can slide is in its surface arranged, this sliding part is used at first determining an axle (major axis or minor axis) of required ellipse, this sliding part can utilize the screw fixed part, be fixed on any needed position on long chi surface, this sliding part can be according to condition of work, and specialized designs is as for the needs of imparting knowledge to students, can have the chalk jack on the sliding part, to make things convenient for teacher on blackboard, draw standard, beautiful elliptical shape.For the convenience that the master worker needs to cut oval sheet material or glass etc. at work, on sliding part, can assemble the spy and join blade, so promptly save time, can guarantee the quality of drawn ellipse again.In addition, crossed grooves can be fixed to by the hole on it on surface of drawn ellipse with fixture, always the above, multipurpose elliptic instrument of the present utility model comprises following operating procedure:

As the case may be, determine the direction of required long axis of ellipse and minor axis and their intersection point, the fixing then frid that intersects;

According to the length of major axis or minor axis, determine the position of sliding part on the long chi, select suitable sliding part that it is fixed on the chi;

Making long chi serves as the 360 ° of scope rotations in basis with two slide blocks in the crossed grooves, the ellipse figure of complete and the standard of once just can drawing.

Advantage of the present utility model is that structure is very simple, and is easily manufactured, simple to operate, and is applied in the various occasions that need ellipse figure, oval size, and the ratio of major and minor axis can choose at random, and volume is little, and is in light weight, easy to carry.

Below in conjunction with accompanying drawing, desirable enforcement of the present utility model is described in detail as follows.Wherein

Fig. 1 is a kind of concrete structure principle of the utility model front view.

Fig. 2 is two slot cross-section figure that cross one another and communicate in the utility model.

Fig. 3 is the slide block front view that slides in groove.

Fig. 4 is an example according to sliding part of the present utility model, has represented multipurpose pencil point jack sliding part perspective view.

Fig. 5 is another example according to sliding part of the present utility model, has represented slotting chalk and glass-cutting power siphunculus sliding part perspective view.

Fig. 6 is the further example according to sliding part of the present utility model, has represented the special blade assembly structure sliding part perspective view of cutting decoration with plastic plate.

With reference to Fig. 1, article two, the groove (1) that crosses one another and lead to, every the groove outside has two apertures (2) to use through the illustrated painting nail, so that fix this crossed grooves on the paper or plate face of needs, Fig. 2 is the cross section structure figure of crossed grooves, Fig. 3 is a sliding shoe between every groove, there is a circular hole centre, a long chi (3), the dead slot (4) that the centre has top and bottom to communicate, can allow has small sircle hole to penetrate with screw in the middle of two slide blocks between following crossed grooves, advance dead slot, add nut check again and be connected together, make this chi change 360 ° around crossed grooves with blade, also adjustable screw changes slide position between groove and can change the different size that draws between ellipse long and short shaft, screw can engrave a scale with sandwiching pad (5) between nut on the pad, but so that relative with the size in the mint-mark above the long blade, and can be by required size, transfer distance between screw and the distance between sliding part and the required big or small ellipse that draws.Need by drawing, Fig. 4 nib jack sliding part is assembled on the blade, move desired location or scale to, tighten the screws (6), make fixed-site, transfer required hole size (7) again, again tighten the screws (8), fixedly aperture (2) is on paper with picture nail at crossed grooves (1), and promptly available penholder is gone into the nib aperture and driven 360 ° of required ellipses that then can draw of chi commentaries on classics.The teacher will be used in and make the teaching picture on the classroom with then installing to the chalk jack sliding part of Fig. 5 on the long blade, move the desired location size to, tighten sliding part side screw, make fixed-site, if wooden blackboard, available picture nail inserts the aperture (2) of Fig. 1, can be attached to the crossed grooves back with Double-face gummed paper and be pressed onto blackboard again and then be fixed as belonging to the cement blackboard, and available chalk inserts siphunculus (9) and drives chi and change 360 ° and the required ellipse that draws.Engineering staff's glass-cutting is pressed onto above the sheet glass after then crossed grooves being pasted with Double-face gummed paper, is fixed in the siphunculus (9) with cutter, firmly depresses, and drives the blade commentaries on classics simultaneously and promptly cuts out oval glass for 360 °.The engineering staff is as cutting the fire prevention offset plate, only need on the special blade assembly parts of Fig. 6, to load onto special blade in the other tighten the screws of circular hole (10), again this sliding part is assembled to blade desired location size, tighten the screws (1) is firmly depressed blade on plastic plate gently, slowly changes 360 ° of ellipses that can cut out the flat difference of circle that varies in size.

For the personnel that are familiar with the industry, by top description the utility model is become apparent, any improvement on the utility model basis can not exceed the scope of the utility model claim.

Claims

1, a kind of multipurpose elliptic instrument, comprise crossed grooves, slide block, long chi and sliding part, it is characterized in that: hold in two cross one another grooves slide block and with the slide block loose fit, the permission slide block slides in groove and the shape of groove can stop slide block to be deviate from slip, long chi is fixed by two slide blocks, and sliding part is contained on the long chi and can slides on the length direction of long chi and fix.

2, according to the multipurpose elliptic instrument of claim 1, it is characterized in that: above-mentioned long chi is prolate shape and has groove, and flute length can be decided as required, and long chi is connected with slide block in the crossed grooves respectively by this groove.

3, according to the multipurpose elliptic instrument of claim 1 or 2, it is characterized in that: can indicate scale respectively on the long chi and on the groove of long chi.

4, according to the multipurpose elliptic instrument of claim 1 or 2, it is characterized in that: the slide block in the groove is connected with long chi can pass through screw, and the distance of two tie points in groove can change.

5, according to the multipurpose elliptic instrument of claim 1, it is characterized in that: the above-mentioned sliding part that is contained on the long chi can assemble the pen of drawing usefulness.

6, according to the multipurpose elliptic instrument of claim 1, it is characterized in that: the chalk that can assemble teaching usefulness on the above-mentioned sliding part.

7, according to the multipurpose elliptic instrument of claim 1, it is characterized in that: but the cutting tool of using on the assembly project on the above-mentioned sliding part.

8, according to the multipurpose elliptic instrument of claim 1, it is characterized in that: long chi is collapsible, built-in, the form of interconnection system or single pole etc.

9, according to the multipurpose elliptic instrument of claim 1, it is characterized in that: described crossed grooves can be fixed on by the hole on it on drawn plane.