QUADRATIC CURVE PLOTTER

• Main Author: OTA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 21.03.2024
• Subjects: ACCESSORIES FOR WRITING OR DRAWING; ARTICLES FOR WRITING OR DRAWING UPON; BEARINGS; BLASTING; BUREAU ACCESSORIES; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WRITING OR DRAWING IMPLEMENTS

To provide a quadratic curve plotter capable of freely plotting graphs of quadratic functions (quadratic curves) with different rates of change by changing fixed positions of members constituting a device with simple operations.SOLUTION: A quadratic curve plotter comprises a frame, a guide member, a cross-shaped rotating member and a quasi-line moving member. The frame consists of a first frame and a second frame, graduated at predetermined intervals and arranged in parallel, the guide member consists of a central guide section, a focal point guide section and a quasi-line guide section, and the cross-shaped rotating member is configured to maintain verticality by a quadratic curve following section and an arm section.SELECTED DRAWING: Figure 1 【課題】装置を構成する部材の固定位置を簡単な操作で変更することによって、変化の割合が異なる二次関数のグラフ（二次曲線）を自在に作図することができる二次曲線作図器を提供することを目的とする。【解決手段】上記課題を解決するために、本発明の二次曲線作図器は、枠体と、ガイド部材と、十字状回転部材と、準線移動部材とから構成された二次曲線作図器であって、枠体が、第一枠体及び第二枠体で構成され、所定の間隔に目盛を付され平行に配置されて、ガイド部材が、中央ガイド部、焦点ガイド部及び準線ガイド部で構成されて、十字状回転部材が、二次曲線追従部及び腕部によって垂直を保持した状態で構成されていることを特徴とする。【選択図】 図１