35results about How to "Short driving stroke" patented technology

The application provides a pen. The pen comprises a shell part, a driving part, a transmission part and a pen core part. The shell part comprises a wall body and an outlet end and a terminal end arranged oppositely along the length direction; the wall body surrounds to form a containing cavity of the shell part; the containing cavity is communicated with the outside at the outlet end and the terminal end. The driving part is arranged in the containing cavity, and part of the driving part is exposed from the terminal end. The transmission part is arranged in the containing cavity; the transmission part comprises a rotating member and a translating member connected; one end of the rotating member away from the translating member is in abutment with the driving part; the rotating member can rotate to drive the translating member to move towards or away from the outlet end. The pen core part is arranged in the containing cavity, and one end of the pen core part is connected with the translating member; the driving part can drive the rotating member to rotate to drive the pen core part to move towards the outlet end and be exposed or move away from the outlet end and be hidden in the containing cavity through the transmission part; wherein the moving distance of the driving part along the length direction is less than the moving distance of the translating member along the length direction.