| 摘要 |
The invention relates to a chalk holder comprising a shaft (1) and a slide (2) which is formed by a receiving part (4) for a chalk (3), characterized in that an upper arm that is mounted in a sprung manner protrudes from said receiving part, extends through a longitudinal guide slot (11) and is provided with a button (10). According to the invention, a lower rigid arm (5) protrudes from the receiving part (4), said arm being mounted in the shaft (1) on at least one guide rail (7), wherein the upper arm (6) carries on the upper side at least one tooth (9) which engages in grooves (13) that are oriented perpendicularly to the direction of the feed and are formed on the lower side of an upper wall (12) of the shaft (1).
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