发明授权
US08142091B2 Writing implement 失效
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Writing implement
摘要:
A writing implement capable of eliminating troubles associated with the adoption of a grip member having an end surface inclined from a vertical surface perpendicular to a central axis of a shaft tube. The inclination angle α of a step-facing surface 5A of the grip member 5 is made smaller than the inclination angle β of an inclined step surface 12 of the shaft tube 10. A gap G is partially formed between the step-facing surface 5A and the inclined step surface 12 when a compressive force is not applied to the grip member 5. When the grip member 5 is compressed, the whole of the step-facing surface 5A is further inclined and comes into contact with the inclined step surface 12. Accordingly, even when the step-facing surface 5A of the grip member 5 is inclined for imparting excellent design to the writing implement, an acute-angled tip-end portion of the grip member 5 is prevented from moving along the inclined step surface 12 and rising from the surface of the shaft tube 10, thereby preventing the occurrence of the troubles.
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