| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, because a cushion stroke of a conventional mechanical pencil having a cushioning function is restricted from a preliminarily compressed state to a state under the largest compression, or the adhesion length of a coil spring, the cushion spring is compressed to the adhesion length every time when receiving an input of writing pressure, leading to impossibility of cushioning due to breakage or distortion of the cushion spring and resultant impairment of an expected writing feeling.SOLUTION: A writing implement having a cushioning mechanism comprises an outer cylinder, a writing body arranged inside the outer cylinder and having a cushion sleeve and an elastic member urging the cushion sleeve forward. The cushion sleeve has a flange part. When the writing body receives writing pressure, the elastic part deforms, and the writing body retreats under the elastic repulsion force of the elastic member. The retreating movement continues until the flange part of the cushion sleeve comes in contact with the outer cylinder. |
