B - Operations – Transporting – 60 – G
Patent
B - Operations, Transporting
60
G
B60G 11/04 (2006.01) F16F 1/18 (2006.01)
Patent
CA 2152378
The invention relates to a leaf spring (1) for suspension of a rigid axle (2) in a vehicle. The spring is joined at a first end (4) to the frame (6) of the vehicle by juncture means which permit pivotal movement about a pivot axis essentially parallel to the axle (2), and being joined at the other second end (7) to the frame by juncture means which permit pivotal movement about a pivot axis essentially parallel to the axle (2) and displacement in the longitudinal direction of the spring, said spring (1) being rigidly joined intermediate its ends to the axle (2) and also being made with cross-sectional moments of inertia which vary in the longitudinal direction of the spring. The invention is characterized in that the spring (1) in a first portion (19), extending between the first end (4) and the juncture with the axle (2), has a thickness which from a starting value at the first end (4) increases along a parabolic curve to a maximum value at the junction with the axle (2), and in a second portion (20), extending between the the junction with the axle (2) and the second end (7), has a thickness which from a starting value at the second end (7) increases along a parabolic curve to a maximum value at the juncture with the axle (2), the maximum value in the first portion (19) being greater than or essentially equal to the corresponding value in the second portion (20).
Ingvarsson Henrik
Raattamaa Jan-Erik
Ab Volvo
Smart & Biggar
LandOfFree
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