The present invention relates to a tip protector device for an instrument such as an endoscope or a borescope. A tip protector device for an instrument includes a projecting surface that is engageable with a tip of the instrument, the protruding portion being arranged to contact the tip and partially extend distally to the end face of the tip； and A guard part configured to prevent contact between the guard part and the center part of the end surface, a gripping member arranged to grip a part of the shaft of the instrument, a first connection member and a second connection member, Relative to each other between a first disengaged position where the tip can be inserted into and removed from the tip protector device and a second gripping position where the gripping member contacts and grips the shaft of the instrument A first connecting member and a second connecting member that are movable, wherein the first connecting member and the second connecting member are deformed at the first position or the second position. Chip protector device. [Selection] Figure 11
