| 摘要 |
<p>A mechanical pencil (100) includes a pencil head (1); a barrel (2), one end of which is connected with the pencil head (1); an outer lead-core delivering device (5) which is mounted in the barrel (2) and used for controlling a lead-core (200) to protrude out of or retract into the pencil head (1); an inner lead-core delivering device (4) which is mounted in the outer lead-core delivering device (5) and used for continuously delivering and clamping the lead-core (200); a pencil cap (3) having a first pushed portion and a second pushed portion, wherein the first pushed portion is connected with the inner lead-core delivering device (4) so as to actuate it and the second pushed portion is connected with the outer lead-core delivering device (5) so as to actuate it. In addition, the mechanical pencil (100) according to the invention may also include a lead-core sharpening device (14) on the pencil head (1) for sharpening the lead-core (200) as required. The mechanical pencil (100) according to the invention can prevent the lead-core (200) from being broken.</p> |
