B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 7/14 (2006.01) B21D 7/022 (2006.01) B21D 53/88 (2006.01)
Patent
CA 2201950
11 Apparatus ( 100) and method are provided for forming an eye at the end of a heated leaf spring blank (2). Apparatus (100) includes a forming plate (16) operative to move angularly downwardly against a cantilevered portion (10) of blank (2) and roll it about a retractable rotary eye pin (5) to form the eye. Apparatus ( 100) includes neutralizing the force created by forming plate (16) against blank(2) during the rolling operation and further preferably includes a scarf blade (14) operative to move angularly to scarf or shape the end of portion (10)prior to the rolling operation.
Cette invention concerne un appareil (100) et une méthode servant à former un oeil à l'extrémité d'un flan de ressort à lames chauffé (2). L'appareil (100) comprend une plaque de façonnage (16) conçue pour s'abaisser obliquement contre une portion en porte-à-faux (10) du flan (2) et l'enrouler autour d'un axe rotatif rétractable (5) pour former l'oeil. L'appareil (100) comprend un dispositif servant à neutraliser l'effort appliqué au flan par la plaque de façonnage au cours de l'opération d'enroulement et comprend aussi, de préférence, une lame à chanfreiner (14) à mobilité angulaire seravnt tailler en biseau l'extrémité de la portion (10) du flan avant l'opération d'enroulement.
Borden Ladner Gervais Llp
Corporation Eaton
Oxford Suspension Inc.
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