Three-way spring clamp

B - Operations – Transporting – 25 – B

Patent

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Details

B25B 1/00 (2006.01) B25B 5/00 (2006.01) B25B 5/06 (2006.01) B25B 7/00 (2006.01)

Patent

CA 2263471

A three-way spring clamp (102) is provided that is useable as an edge clamp for applying clamping forces to workpieces in three directions. The clamp includes two lever arms (32), each having a jaw end (38) and a handle end (36). The lever arms (32) are pivotally connected to each other at a pivot point (34) located between the jaw ends (38) and the handle ends (36). A coil spring (44) is provided for biasing the lever arms (32) toward a closed gripping position. A spring engagement member (102) is mounted between the lever arms and is engageable with a surface of an article to be clamped. The engagement member (102) provides spring pressure in a direction generally perpendicular to the direction of clamping forces applied by the jaws of the clamp, making the clamp useful as a three-way edge clamp.

L'invention concerne un dispositif de serrage (102) à trois points d'action utilisable comme un étau pour bord permettant d'appliquer des forces de serrage à une pièce à travailler dans trois directions. Le dispositif de serrage comporte deux bras de levier (32) ayant chacun une extrémité de serrage (38) et une extrémité servant de poignée (36). Les bras de levier (32) reliés pivotants l'un à l'autre en un point de pivotement (34) situé entre les extrémités de serrage (38) et les extrémités servant de poignées (36). Un ressort hélicoïdal (44) sollicite les bras de levier (32) pour les mettre en position de serrage fermée. Un élément de contact élastique (102) est monté entre les bras de levier et peut venir en appui contre une surface d'un article à serrer. Cet élément (102) fournit une pression élastique dans une direction sensiblement perpendiculaire à la direction des forces de serrage appliquées par les mâchoires du dispositif de serrage, ce qui permet d'utiliser le dispositif de serrage comme un étau pour bord, à trois points d'action.

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