CN2272374Y - Ellipse compasses - Google Patents

Ellipse compasses Download PDF

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Publication number
CN2272374Y
CN2272374Y CN 96212929 CN96212929U CN2272374Y CN 2272374 Y CN2272374 Y CN 2272374Y CN 96212929 CN96212929 CN 96212929 CN 96212929 U CN96212929 U CN 96212929U CN 2272374 Y CN2272374 Y CN 2272374Y
Authority
CN
China
Prior art keywords
ellipse
cross
arm
frame
long
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 96212929
Other languages
Chinese (zh)
Inventor
王世胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 96212929 priority Critical patent/CN2272374Y/en
Application granted granted Critical
Publication of CN2272374Y publication Critical patent/CN2272374Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to ellipse compasses which are a special tool for conveniently and accurately drawing ellipses. The plotting of the ellipse is realized by controlling the motion trajectory of the 1/2 point of long and short shafts of the required ellipse by a 'cross-shaped guide rail'. The utility model is characterized in that a cross-shaped flat plate (drawing frame) having a cross-shaped hole is supported and hung. Two screw bolts respectively penetrate through sliding blocks arranged in longitudinal and transversal holes of the cross-shaped hole of the drawing frame. The upper end is connected with an operation hand lever, the lower end is connected and tightly locked (the locking points are respectively 1/2 of the long and short shafts of the required ellipse) with a long shape flat plate (drawing arm) having a long strip hole, and the drawing arm is suspended below the drawing frame in parallel. The drawing arm can be freely rotated in the controlled range of the cross-shaped hole of the drawing frame, and the operation trajectory of the drawing pen driven by the drawing arm is the ellipse.

Description

Ellipsograph
The utility model relates to a kind of oval specific purpose tool of drawing.
At present, the known method of drawing ellipse of people has: four hearts circle practice of the oval concentric circles practice, ellipse etc. all exist and draw inconvenient or coarse shortcoming.(not knowing whether to have other to draw oval specific purpose tool in person)
The utility model provides a kind of ellipsograph, is exclusively used in to draw ellipse, and it is not only drawn conveniently, and accurately.
The purpose of this utility model be achieved in that utilize supporting leg cross bore to be arranged with one (cross bore is required oval long as drawing, the motion guide rail that minor axis is 1/2) cross flat board (as painting frame) supports unsettled, utilize two bolts respectively by painting the vertical of frame cross bore, slide block in the transverse holes, the upper end is connected with operating grip, lower end and one has the strip flat board (as painting arm) of elongated hole to be connected locking, and (it is required oval long that locking point is respectively, minor axis 1/2 point), make and paint parallel being suspended in of arm and paint frame below, and the rotation that can in the scope of the cross bore control of painting arm, freely swing.The geometrical principle of its institute's foundation is: oval and oval long and short axis is the Changing Pattern between vertical " cross hairs " that constitutes mutually, its Changing Pattern is embodied in: being more arbitrarily the center of circle on the ellipse, with ellipse short shaft 1/2 is that radius is made an arc, make it to intersect with transverse, connect and prolongation at 2, extended line and ellipse short shaft are intersected, and the distance between the point of joining to the ellipse must be 1/2 of a transverse.Changing Pattern as can be known thus: control the long and short axle of required ellipse 1/2 point, it is moved on ellipse weak point, long axis respectively, can find out oval all points of.
Owing to adopted such scheme, overcome inconvenience, inaccuracy when drawing ellipse.Only adopted the cross guide rail to control the running orbit of 1/2 on the long and short axle of required ellipse in this programme, simple in structure.
Below in conjunction with drawings and Examples the utility model is further specified.Among the figure 1, paint frame 2 and paint arm (paint arm bottom surface have scale invisible in the drawings) 3, cruciform vent guide rail 4, supporting leg 5, paint pen card 6, handle 7, slide block 8, handle 9, slide block
In the accompanying drawings, supporting leg (4) will be painted frame (1) and support unsettled, two bolts (invisible in the accompanying drawings) are passed through slide block (7) respectively, (9), upper end and handle (6), (8) connect, the lower end with paint arm (2) and be connected locking, (it is required oval long that this locking point is respectively, minor axis 1/2 point) makes and paint the parallel below of painting frame (1) that is suspended in of arm (2), when driving handle (6), (8) drive slide block (7), (9) and when painting arm (2), make slide block (7), (9) respectively at the horizontal stroke of the cross bore slideway (3) of painting frame (1), when vertically sliding in the hole, the running orbit of painting pen card (5) (below card have paint pen) of painting arm (2) one ends promptly is an ellipse.Regulating handle (6), (8) and paint pen card (5) at the locked position of painting on the arm (2) can be drawn required ellipse and will be painted pen card (5) and transfer between handle (6), (8), can draw small ellipse.

Claims (1)

1, a kind of ellipsograph, it is characterized in that: have the cross flat board (painting frame) of cruciform vent guide rail to support unsettled one, utilize two bolts respectively by the slide block in the vertical, horizontal hole of painting the frame cross bore, the upper end is connected with operating grip, lower end and one has the strip flat board (painting arm) in strip hole to be connected locking, make and paint parallel being suspended in of arm and paint frame below, and the rotation that can in the scope of painting the control of frame cross bore guide rail, freely swing.
CN 96212929 1996-05-18 1996-05-18 Ellipse compasses Expired - Fee Related CN2272374Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96212929 CN2272374Y (en) 1996-05-18 1996-05-18 Ellipse compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96212929 CN2272374Y (en) 1996-05-18 1996-05-18 Ellipse compasses

Publications (1)

Publication Number Publication Date
CN2272374Y true CN2272374Y (en) 1998-01-14

Family

ID=33895448

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96212929 Expired - Fee Related CN2272374Y (en) 1996-05-18 1996-05-18 Ellipse compasses

Country Status (1)

Country Link
CN (1) CN2272374Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105034654A (en) * 2015-07-11 2015-11-11 陈有添 Elliptic trammels
CN109333494A (en) * 2016-08-24 2019-02-15 黄哲敏 A kind of ellipsograph
CN109738359A (en) * 2018-12-29 2019-05-10 大连益盛达智能科技有限公司 Detection device aligns camera testing agency
CN112606594A (en) * 2020-12-24 2021-04-06 北华航天工业学院 Function generating mechanism for drawing circles and ellipses

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105034654A (en) * 2015-07-11 2015-11-11 陈有添 Elliptic trammels
CN109333494A (en) * 2016-08-24 2019-02-15 黄哲敏 A kind of ellipsograph
CN109333494B (en) * 2016-08-24 2021-11-26 西宁共进新材料科技有限公司 Ellipsograph
CN109738359A (en) * 2018-12-29 2019-05-10 大连益盛达智能科技有限公司 Detection device aligns camera testing agency
CN112606594A (en) * 2020-12-24 2021-04-06 北华航天工业学院 Function generating mechanism for drawing circles and ellipses

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee