JPS6258692U

JPS6258692U -

Info

Publication number: JPS6258692U
Application number: JP14982785U
Authority: JP
Priority date: 1985-09-30
Filing date: 1985-09-30
Publication date: 1987-04-11

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す斜視図、第２
図は同実施例の第１図における縦断面図、第３図
、第４図、第５図は同実施例に使用する各部品の
斜視図、第６図は同実施例の楕円軌道の説明図、
第７図は本考案の他の実施例を示す斜視図、第８
図は同実施例の第７図における縦断面図、第９図
は同実施例に使用する部品の斜視図、第１０図は
本考案のさらに他の実施例に使用する部品の部分
斜視図（一部断面）、第１１図は同実施例に使用
する部品の斜視図である。２，６２……第１軸、４……止め針（係止部）
、８，６８……フレーム（第１の支持部材）、１
２，１６，３６，３８，６６，７６，９０，９２
……歯車（回転伝達部材）、１８……第２軸、９
４……ワイヤ（第２軸）、２２，８０……歯車保
持枠、４０……第３軸、４２，５２……ペン保持
部材、４６……ペン部材、５０……製図ペン（ペ
ン部材）。 Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a longitudinal sectional view of the same embodiment in Fig. 1, Figs. 3, 4, and 5 are perspective views of each part used in the same embodiment, and Fig. 6 is an explanation of the elliptical orbit of the same embodiment. figure,
FIG. 7 is a perspective view showing another embodiment of the present invention;
The figure is a vertical sectional view of the same embodiment in FIG. 7, FIG. 9 is a perspective view of parts used in the same embodiment, and FIG. 10 is a partial perspective view of parts used in still another embodiment of the present invention. FIG. 11 is a perspective view of parts used in the same embodiment. 2, 62...First shaft, 4...Stop needle (locking part)
, 8, 68...Frame (first support member), 1
2, 16, 36, 38, 66, 76, 90, 92
... Gear (rotation transmission member), 18 ... Second shaft, 9
4... Wire (second axis), 22, 80... Gear holding frame, 40... Third axis, 42, 52... Pen holding member, 46... Pen member, 50... Drafting pen (pen member) .

Claims

[Claims for Utility Model Registration] 1. A first shaft provided with a locking part at the tip for fixing the position on the object on which an ellipse is to be drawn; a second shaft supported by the first support member; and a second shaft rotatably spaced from the second shaft by a predetermined distance.
a third shaft supported by a support member; a pen holding member attached to the third shaft such that the distance from the third shaft to the tip of the pen member can be adjusted; a first rotation transmission mechanism to which a rotation transmission member is attached and which enables rotation transmission between the two shafts through mutual contact or meshing; and a rotation transmission member on each of the second and third shafts. and a second rotation transmission mechanism to which another rotation transmission member different from the rotation transmission member is attached and which enables rotation transmission between the two shafts by mutual contact or meshing, and the second shaft is connected to the first shaft. An ellipse plotter in which the diameter ratio of each rotation transmission member of the first and second rotation transmission mechanisms is determined so that the third axis rotates once during one revolution around the ellipse. 2. The ellipse drawing device according to claim 1, wherein each rotation transmission member is a gear. 3. The ellipse plotter according to claim 1 or 2, wherein each rotation transmission member is a roller. 4 The second shaft is entirely or partially made of a flexible member, and the first support member has a portion supporting the second shaft end of the second rotation transmission mechanism that is connected between the first shaft and the second shaft. The ellipse plotter according to claim 1 or 3, which is capable of adjusting the distance. 5. The second support member is swingably and fixedly attached to the first support member, and the distance between the third axis and the first axis is adjustable. The ellipse plotter according to any one of ranges 1 to 4.