Writing instrument

Details Writing instrument Writing instrument

B - Operations, Transporting

43

K

B43K 23/12 (2006.01)

Patent

CA 2421930

The writing instrument (100) includes a cap (102) and a barrel (10 ). The cap (102) includes threads (120) which engage the threads (122) on the barrel (104). In addition, the cap includes protrusions (130) which engage protrusions (132) on the barrel. The threads are designed so that the cap (102) will engage the stop surface (196) in approximately one third of a revolution. When the protrusions (130), (132) move past each other, the user perceives a tactile and/or audible indication. This indication advises the user that the cap has been fully attached to the barrel. In addition, the cap includes ribs (154) on the exterior surface (156) to assist the use in grasping the cap and in rotating the cap.

L'invention concerne un instrument d'écriture (100) comprenant un capuchon (102) et un corps cylindrique (104). Le capuchon (102) présente des filetages (120) coopérant avec les filetages (122) situés sur le corps cylindrique (104). De plus, le capuchon présente des protubérances (130) coopérant avec celles situées sur le corps cylindrique. Les filetages sont conçus de manière que le capuchon (102) coopère avec la surface de butée (196) environ en un tiers de tour. Quand les protubérances (130, 132), passent les unes à côté des autres, l'utilisateur perçoit une indication tactile et/ou audible que le capuchon est totalement fixé au tube. En outre, le capuchon comprend des nervures (154) sur la surface extérieure (156) permettant à l'utilisateur de saisir plus facilement le capuchon et de tourner celui-ci.

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