MECHANICAL PENCIL

To provide a retractable mechanical pencil in which an improper operation when retracting a cap from a barrel can be avoided, and a cap retraction operation can be performed by a light force.SOLUTION: A mechanical pencil 100 comprises a barrel 10, an operation body 40 which is exposed from the barre...

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1. Verfasser: ONISHI TOMOHARU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a retractable mechanical pencil in which an improper operation when retracting a cap from a barrel can be avoided, and a cap retraction operation can be performed by a light force.SOLUTION: A mechanical pencil 100 comprises a barrel 10, an operation body 40 which is exposed from the barrel 10, a pressing operation part 18 which is held on the operation body 40, and a core delivery unit 20 which is supported in the barrel 10 and holds a writing core 21. When the operation body 40 is pushed to a prescribed position X forward with respect to the barrel 10, the core delivery unit 20 is held by the barrel 10 in a relatively forward writing state and in a relatively backward non-writing state alternately. When the pressing operation part 18 is pushed forward with respect to the barrel 10, the writing core 21 is delivered forward from the core delivery unit 20. When pressing the pressing operation part 18 forward in the non-writing state, relative movement of the operation body 40 forward with respect to the barrel 10 is regulated at a position behind the prescribed position X.SELECTED DRAWING: Figure 1 【課題】口金を軸筒から出没させる際の誤操作を回避でき、且つ、軽い力で口金の出没操作を行うことができる出没式のシャープペンシルを提供すること。【解決手段】シャープペンシル100は、軸筒10と、軸筒10から露出した操作体40と、操作体40に保持された押圧操作部18と、軸筒10内に支持され、筆記芯21を保持する芯繰出ユニット20と、を備えている。操作体40を軸筒10に対し前方に所定位置Xまで押し込むと、芯繰出ユニット20が軸筒10によって相対的に前方の筆記状態と相対的に後方の非筆記状態とに交互に保持される。押圧操作部18を軸筒10に対し前方に押し込むと、芯繰出ユニット20から筆記芯21が前方に送り出される。非筆記状態において押圧操作部18を前方に押圧した際、操作体40は、所定位置Xより後方の位置にて、軸筒10に対する前方への相対移動が規制される。【選択図】図1