Clip of caps adapted to remove shaft
AssigneeJ.S. Staedtler GmbH & Co. KG
InventorGerald Groetsch
Life of this patent
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Abstract
To screw the writing tip in and out of the instrument shaft of a writing or drawing instrument, the cap has been used as a screwing tool. The cap is usually fabricated with a many-sided receiving bore for this purpose as an extension of its bore, which can be placed onto the writing tip after the cap has been turned around. As a result, the cap is relatively long. The writing or drawing instrument of the present invention in contrast, has a cap of standard length. A many-sided receiving bore which is to be placed on the writing tip, in order to be able to screw it in or out, is formed, in part, by the clip of the cap, and in part by the wall of cap in the region where the clip is connected to the cap.
Claims13
A writing or drawing instrument having a writing insert which can be screwed in and out of the instrument shaft and a cap which can be placed over the writing insert and which has a clip and a receiving bore which can be placed onto the writing insert, the writing insert being removable from or inserted into the instrument shaft by means of the cap having the mounting insert disposed within the receiving bore, the receiving bore being many sided and being formed in part by the clip and in part by the outer wall of the cap, a part of the clip forming one part of the receiving bore being shiftable with respect to the part of the outer wall of the cap forming the other part of the receiving bore to limit the torque which acts on the writing insert by expanding the receiving bore.
Dependencies are inferred from the claim text.