The spool of a ballpoint pen

Abstract

1. Name of the product in this design: The shaft of a ballpoint pen. 2. Purpose of this design: This design is intended to be used as a ballpoint pen as a whole, and the part for which protection is sought is intended to be used as the shaft of the ballpoint pen. 3. The key design features of this product are the shape of the parts other than the red portion. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: The part of the product for which protection is sought is shown in red in the design drawings, while the part for which protection is not sought is shown in red.

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