SU919907A1

SU919907A1 - Appliance for drawing curves

Info

Publication number: SU919907A1
Application number: SU802895215A
Authority: SU
Inventors: Вячеслав Петрович Табацков; Валерий Павлович Братанов; Игорь Васильевич Балицкий; Татьяна Михайловна Шерстобитова
Original assignee: Уфимский Нефтяной Институт; Николаевский Филиал Одесского Инженерно-Строительного Института
Priority date: 1980-03-13
Filing date: 1980-03-13
Publication date: 1982-04-15

Description

(5) ПРИБОР ДЛЯ ВЫЧЕРЧИВАНИЯ КРИВЫХ(5) DEVICE FOR DRAWING CURVES

1one

Изобретение относитс к оргтехни ке, а именно к графическим приборам дл вычерчивани математических кри вых второго пор дка и может найти применение в учебном процессе.The invention relates to office equipment, namely, graphic devices for drawing second-order mathematical curves, and can be used in the educational process.

Известен кулисно-рычажный параболограф Артоболевского, содержащий установленные в корпусе две направл ющие , с одной из Которых посредством ползунов св заны кулиса и траверса , а с другой - втора кулиса, св занна с траверсой посредством двух шарнирно соединенных ползунов и с первой кулисой посредством ползуна , соедин ющего первую кулису со второй направл ющей. Кроме того, прибор имеет устройство, установленное на двух шарнирно соединенных ползунах П.The Artobolevskiy-lever parabolaograph is known, containing two guides installed in the housing, one of which is connected by means of sliders to the slide and traverse, and on the other is the second linkage connected to the crosshead by means of two hingedly connected sliders and to the first slide of the slider, connecting the first link with the second guide. In addition, the device has a device mounted on two articulated sliders P.

Однако этот прибор имеет ут желённую конструкцию и не позвол ет воспроизводить одновременно параболу и эллипс.However, this device has an improved design and does not allow reproducing simultaneously a parabola and an ellipse.

Цель изобретени - упрощение кон- ; струкции, расширение диапазона вычерчивани кривых и одновременное их воспроизведение. . Указанна цель достигаетс тем, что прибор, содержащий установленные в корпусе направл ющую, шарнирно .св занные с ней посредством ползуна кулису и траверсу, вторую кулису,св занную с траверсой посредством двух The purpose of the invention is to simplify the con; Structures, expanding the range of tracing curves and their simultaneous reproduction. . This goal is achieved by the fact that the device containing a guide mounted in the housing is hinged to it by means of a slide and to a cross bar, with a second slide connected to the cross arm by means of two

10 шарнирно соединенных ползунов и с первой кулисой посредством дополнительного ползуна, и пишущее устройстг во, установленное на двух шарнирно10 pivotally connected sliders and with the first slide through an additional slide, and a writing device mounted on two pivots

Claims

, j connected by grids, has an additional writing device mounted on an additional slider, the free ends of the first and second wings are hinged in the housing on one single line corresponding to one of the coordinate axes, while the free end of the second link is fixed on the axis of the guide, and the additional The slider is made crosswise. 39 The drawing shows the kinematic diagram of the device. The device consists of a guide 2 installed in the housing 1 (on the drawing board), in the slot of which the slider 3 is moved. It carries the yoke C connected by means of two hingedly connected sliders 5 and 6 and the end of which 7 is hinged at the axis of the guide 2, and the shoulder of the link 7 passes through an additional, cross-shaped slider 8, which connects it with the link 9, one end of which is pivotally attached in the housing 1 and which passes through the slider 10 pivotally connected to the slider 3. The cross-shaped slider 8 and the hinge United Sliders 5 and 6 equipped with writing devices (not shown in the drawing). The curves, with the help of this device, are drawn as follows. The vertical direction 2 is set along the axis of the op-amp, the point O is at the origin of coordinates, and the point A is at a distance a from the origin of coordinates along the axis OX. When moving the sliders 10 and 3 along the slot with guideline 2, the writing pin at point M draws a parabola using the equation U ax, and the writing pin set at exactly Kb T on the additional slider 8 produces an ellipse using the equation. The proposed device is useful for mechanizing graphic operations in solving problems of applied geometry for building, where it is required to draw multiple ellipses and parabolas with constant or variable parameters, which reduces the unproductive time spent compared to drawing curves with the usual set of drawing tools and increases the accuracy of the drawn curves. Claims An apparatus for drawing curves, comprising a guide installed in the housing, hinged to it by means of a slide and a crosshead, a second slide, connected to a crosspiece by means of two hingedly connected sliders and the first slide by means of an additional slide, and a writing device mounted on two pivotally connected sliders, characterized in that, in order to simplify the construction and expand the drawing range of the curves, it has an additional writing device fixed on the additional slider, the free ends of the first and second wings are hinged in the housing in one line corresponding to one of the coordinate axes, while the free end of the second slide is fixed on the guide axis, and the additional slider is cross-shaped. Sources of information taken into account in the examination 1. Artobolevsky And, And, Mechanisms in modern technology. M., Mashinostpcfenie, 1971, t, 2, s, 138, № 1100.