Retractable electronic pen comprising actuator button decoupled from force sensor

An electronic pen comprising:

• a retractable cartridge having a nib at a first end for contacting a surface, said cartridge being configurable in an extended position, wherein said nib protrudes from a body of said pen, and a retracted position wherein said nib is retracted in said body;
• a force-actuable device, said device being actuated by a nib force transmitted axially through said cartridge from said nib;
• a retraction mechanism comprising a barrel for receiving an opposite second end of said cartridge, said barrel being adapted for seating said cartridge in either an extended position or a retracted position, said barrel being engaged with said force-actuable device;
• a button for actuating said retraction mechanism;
• and
• a decoupling mechanism for biasing said button away from coupled engagement with said retraction mechanism and thereby said force-actuable device.