F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
F16F 1/18 (2006.01) C21D 7/10 (2006.01) C21D 8/00 (2006.01) F16F 1/02 (2006.01) C21D 9/02 (2006.01)
Patent
CA 2071432
A vehicle suspension member such as a spring leaf or plate (50) is provided with at least one discontinuity therein that extends generally parallel to a longitudinal axis ("L/A") extending therealong between opposite ends thereof andis effective to divert crack propagation in a direction generally parallel thereto. The discontinuity(s) are provided by methods that include compressing an elongate member (10,12) having an enclosed void (12,16) extending along its central region in one embodiment or by compressing an elongate member (26) having a plurality of enclosed voids (28) extending along its length in another embodiment or by compressing an elongate member (41) in yet another embodiment, having opposite sides (43,43') that, in cross -section, have a concave shape.
Cette invention concerne un élément de suspension de véhicule, un ressort à lames (50) par exemple comportant au moins une discontinuité généralement parallèle à son axe longitudinal ("L/A") et destinée à orienter la propagation des fissures dans une direction généralement parallèle à sa propre orientation. La (les) discontinuité(s) est (sont) produite(s) selon un procédé qui comprend la compression, selon une variante, d'un élément oblong (10, 12) présentant un vide longitudinal (12, 16) centré dans sa masse dans une variante ou, selon une autre variante, d'un élément oblong (26) présentant plusieurs vides (28) le long de sa grande dimension ou, selon une troisième variante, d'un élément oblong (41) dont les grands côtés opposés (43, 43') sont concaves.
Borden Ladner Gervais Llp
Corporation Eaton
Oxford Suspension Inc.
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