Writing utensil with retract piece

A writing utensil with a retract piece, the retract piece provided on one end side of a shaft tube of a writing utensil body, the retract piece moves forward and assumes a projected state due to its own weight when oriented downwardly, and moves backward and assumes a retracted state due to its own weight when oriented upwardly, the writing utensil comprising:

• an advancing and retreating member including the retract piece on a front end side thereof and supported to advance/retreat relative to the writing utensil body;
• a rolling element supported to rotate without advancing/retreating relative to the writing utensil body,
• a recessed part which is provide at the side face of the advancing and retreating member at a position close to a rear end thereof and into which the rolling element is fitable;
• a catching and releasing member supported to advance/retreat relative to the writing utensil body on a rear side of the rolling element;
• and
• a holder supporting, at the writing utensil body, the advancing and retreating member such that the advancing and retreating member advances/retreats,
• wherein a circumferential face of the rolling element contacts a side face of the advancing and retreating member
• wherein when moving forward, the catching and releasing member contacts the rolling element at a position further toward an outer side than a center part of the rolling element in a radial direction of the shaft tube, and when moving backward, the catching and releasing member moves away from the rolling element toward the rear side,
• wherein the holder is provided with:
• a side wall covering and supporting a periphery of the advancing and retreating member such that the advancing and retreating member advances/retreats in order to retract/project the retract piece back and forth;
• and a through-hole penetrating the side wall in a thickness direction thereof,
• wherein the holder supports the rolling element such that the rolling element rotates without advancing/retreating relative to the writing utensil body in the through-hole,
• wherein the rolling element comprise a plurality of rolling elements, the plurality of rolling elements being provided to pinch the advancing and retreating member to an inner side, in the radial direction of the shaft tube,
• wherein the catching and releasing member has a tubular shape, the holder positioned at a center of the catching and releasing member, and
• wherein an inner circumferential face of the catching and releasing member, on a front end side thereof, is provided with an inclined face touching, from the rear side, a part of the rolling element at a position close to an outer side, in the radial direction of the shaft tube.