compass point
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 冯文达
- Publication Date
- 2020-08-28
Smart Images
Figure 1
Abstract
Description
technical field
[0001] The invention relates to a drawing compass point in the field of stationery. Background technique
[0002] The tip of the centering pin with a common compass point is sharp or blunt, and CN201165143Y discloses a safety steel needle with an arc-shaped tip. The sharp needle point is easy to pierce multiple pages of paper, and the overall fixed blunt, round needle point directly rubs against the paper, which is not conducive to the use of positioning and is prone to errors. Contents of the invention
[0003] The technical problem to be solved by the invention is to ensure the flexible and accurate positioning of the compass point and the integrity of the paper. The ball seat at the top of the compass tip is used to accommodate the ball clearance fit. The ball is convex and can be rotated without falling off. One end of the compass point is equipped with a ball with a diameter of 0.2mm for the centering of the compass. The other end can be optionally eq...