Multi-segment sliding eraser

Abstract

This invention provides a multi-segment sliding eraser, comprising a housing, a slider, and an eraser. The housing has a slide rail and a positioning groove; the slider is slidably mounted on the slide rail and includes a button and a spring-loaded locking structure. When the button is pressed, the spring-loaded locking structure separates from the positioning groove, allowing the slider to slide freely; when the button is not pressed, the spring-loaded locking structure automatically returns to its original position and engages with the positioning groove, keeping the relative position of the housing and the slider fixed. Thus, the user can adjust the eraser's extension length with just one hand, and it automatically locks when released, achieving intuitive operation and stable positioning.

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