Heatstake

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 65/60 (2006.01) F16B 19/10 (2006.01)

Patent

CA 2468817

A heatstake for fastening a workpiece includes a base portion (12) having at least one shaft portion (22). A central passage (30) extends though the shaft portion from its leading end (28) to the base portion. A plurality of slots (22) are disposed about an outer surface (34) of the shaft portion (22). The plurality of slots (32) have a predefined angular separation. Preferably, the plurality of slots (32) disposed about the outer surface of the shaft portion form a heatstake having multiple fastening portions. The multiple fastening portions are adapted to form a geometric flower shape for increasing the fastening strength of a heatstake when staked.

L'invention concerne une cheville thermique conçue pour fixer une pièce à usiner, laquelle cheville comprend une base (12) présentant au moins une partie tige (22). Un passage central (30) s'étend à travers la partie tige depuis son extrémité avant (28) vers la base. Plusieurs encoches (22) sont ménagées autour d'une surface extérieure (34) de la partie tige (22). Ces encoches (32) présentent une distance angulaire prédéfinie. De préférence, les encoches (32) placées autour de la surface de la partie tige forment une cheville thermique présentant plusieurs portions d'attache. Les multiples portions d'attache sont conçues pour définir une forme de fleur géométrique qui permet d'améliorer la force d'attache d'une cheville thermique lorsqu'elle est fixée.

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