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HAND-HELD DEVICE, IN PARTICULAR A WRITING INSTRUMENT, HAVING TWO RETRACTABLE HEADS
HAND-HELD DEVICE, IN PARTICULAR A WRITING INSTRUMENT, HAVING TWO RETRACTABLE HEADS
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机译:带有两个可伸缩头的手持式设备,特别是一种书写工具
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摘要
A hand-held device, in particular a writing instrument, comprising a body, a single carriage carrying a first head and a second head, or a first carriage and a second carriage carrying respectively the first head and the second head, and a blocking device including a cavity and a ball, the ball) blocking the single carriage or the first carriage when the first end is below the second end, such that the first head is blocked and projecting while the second head is retracted, and the ball blocking the single carriage or the second carriage when the first end is above the second end, such that the second head is blocked and projecting while the second first head is retracted.
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