Variable Speed Hollow Tube Insertion for Cartridge Apparatus Noise Reduction

The patent applies dynamics by transitioning from constant speed motion to variable speed motion. The driving source controller adjusts the driving speed according to the movement phase: using a first driving speed during approach, a second driving speed (faster) during contact and release of blocking members, and a third driving speed during final positioning. This dynamic speed adjustment ensures reliable blocking member release while minimizing operation sound during low-resistance phases.

The patent changes the parameter of driving speed from constant to variable. By controlling the driving source to operate at different speeds (first, second, and third driving speeds) corresponding to different movement phases of the hollow tube, the system optimizes both reliability of blocking member release and reduction of operation sound. The speed parameter is modified based on real-time feedback about the hollow tube's position and contact status with blocking members.

The patent segments the hollow tube's movement into distinct phases, each with appropriate speed characteristics. The movement is divided into: approach phase (first driving speed), contact and release phase (second driving speed - faster), and final positioning phase (third driving speed). This segmentation allows the system to use higher speeds only when necessary for productivity during the contact phase, while using lower speeds during approach and positioning to minimize operation sound.

The patent implements periodic action by alternating between different driving speeds during the movement cycle. The driving source controller periodically adjusts the speed based on the hollow tube's position: slower speeds during approach and positioning, faster speeds during the brief contact and release phase. This periodic variation in speed maintains productivity while reducing overall operation sound.