Novel ruler and compasses assembly
A ruler, a new type of technology, applied in the field of drawing tools, can solve the problems of not being able to find tools to carry, inconvenient, etc., and achieve the effects of large market promotion, low cost, and wide application fields.
Inactive Publication Date: 2016-01-27
ZHONGYUAN ENGINEERING COLLEGE
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Problems solved by technology
Nowadays, there are many drawing tools, and all of them can only be used separately. In the process of drawing more complex drawings or teaching, different types of drawing tools are needed. People often worry about not being able to find the tools and being inconvenient to carry.
Method used
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Embodiment
[0017] Example: such as Figure 1-2 As shown, a new type of ruler includes a centering needle device 1, a variable radius device 2, a protractor device 3, a pen holder device 4 and a roller device 5. The pen holding device 4 is arranged on the rotating leg 2 - 1 of the radius changing device 2 . The centering pin device 1 and the roller device 5 are all installed on the center leg 2-2 of the variable radius device 2, the centering pin device 1 is located between the rollers of the roller device 5; one end of the protractor device 3 is fixed on the variable radius device On the rotating leg 2-1 of 2, the other end of protractor device 3 is hinged on the central leg 2-2 of variable radius device 2.
[0018] The radius changing device 2 includes a rotating leg 2-1 and a central leg 2-2, and the top end of the rotating leg 2-1 is hinged to the top end of the central leg 2-2 through a fixing member 2-3. The angle formed between the rotating leg 2-1 and the central leg 2-2 makes t...
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The invention discloses a novel ruler and compasses assembly. The novel ruler and compasses assembly comprises a centering pin device, a variable-radius device, a protractor device, a pen clamping device and an idler wheel device. The pen clamping device is arranged on a rotary leg of the variable-radius device. The centering pin device and the idler wheel device are both installed on a center leg of the variable-radius device. The centering pin device is located between idler wheels of the idler wheel device. One end of the protractor device is fixed to the rotary leg of the variable-radius device, and the other end of the protractor device is hinged to the center leg of the variable-radius device. By the adoption of the novel ruler and compasses assembly, circles with different diameters and any lines can be drawn, the angle measurement function is achieved, three purposes are achieved through one ruler, and the trouble of searching for tools during drawing is saved. According to the novel ruler and compasses assembly, limitation to a specific pen is avoided, all required pens can be placed in a pen container to be used through a locking piece, and then required lines and circles can be drawn. Meanwhile, the novel ruler and compasses assembly can also serve as a protractor to be used for angle measurement, using is convenient, implementation is easy, and the novel ruler and compasses assembly can be used easily and rapidly.
Description
technical field [0001] The invention belongs to the technical field of drawing tools, and in particular relates to a novel ruler. Background technique [0002] In the process of drawing, drawing tools such as rulers, compasses, and protractors are often widely used and are also indispensable, and the market prospect is very broad. There are many drawing tools now, and all of them can only be used separately. When drawing more complex drawings or in the teaching process, different types of drawing tools are needed. People often worry about not being able to find the tools and being inconvenient to carry. Moreover, many one-armed people often worry about not being able to easily draw straight lines and measure angles in their study and life. Contents of the invention [0003] Aiming at the deficiencies described in the above-mentioned prior art, the object of the present invention is to provide a new ruler gauge that can well combine drawing straight lines, drawing circles ...
Claims
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IPC IPC(8): B43L13/00
Inventor 杨树峰张伟杰车江宁付晓莉梅有恩刘旭东唐浩亭
Owner ZHONGYUAN ENGINEERING COLLEGE