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Ballpoint pen chip and writing utensil equipped with the ballpoint pen chip
Ballpoint pen chip and writing utensil equipped with the ballpoint pen chip
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机译:圆珠笔芯片和配备该圆珠笔芯片的书写用具
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摘要
To make it possible to easily change a writing line width.;A ballpoint pen chip that brings a front half part side of a transfer ball into contact with an inward annular protrusion on a front end side in a chip body from a backward side of the inward annular protrusion and receives a rear half part side of the transfer ball with a front end part of a receiving member. The receiving member includes, on a front end side thereof, a reduction part gradually reduced in a cross-sectional area forward. A front-most end part of the reduction part is disposed backward from the transfer ball. A portion of the receiving member further on a rear side than the reduction part is unretreatably fixed to the chip body and configured to elastically contract when a pressing force is received from the transfer ball.
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