Retractable writing utensil

A retractable writing utensil comprising:

• a barrel having an outer peripheral surface;
• a writing body;
• a knocking member that causes a portion of the writing body to protrude from or retract into a front end of the barrel with a knocking operation of pushing the knocking member forward,
• the knocking member including a clip part capable of sandwiching an object to be clamped between the clip part and the outer peripheral surface of the barrel;
• and
• an interlocking member that interlocks with the knocking member,
• the interlocking member moving forward together with the knocking member and the clip part when the knocking member is pushed forward,
• wherein the knocking member and the interlocking member are engaged with each other in a state allowing a restricted relative rotation of the knocking member and the interlocking member relative to each other,
• wherein the writing utensil includes a pressing member between the interlocking member and the writing body, and
• wherein the interlocking member is configured to be detached from the pressing member,
• wherein the pressing member includes a pressing side engagement portion configured to engage with the barrel to retain a state where the writing body protrudes from the barrel,
• wherein the knocking member is configured to be difficult to detach from the interlocking member,
• wherein the interlocking member is configured to be difficult to detach from the pressing member,
• wherein the pressing member is configured to engage with the barrel to make it difficult for the pressing member to detach from the barrel,
• wherein when the knocking member is attempted to be pulled out from the barrel with an excessive force, the interlocking member is detached from the pressing member.