Torsion damping device with springs and tilting seats
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United States of America Patent
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Nov 1, 2016
Grant Date -
Sep 3, 2015
app pub date -
Sep 23, 2013
filing date -
Oct 4, 2012
priority date (Note) -
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Abstract
This device comprises two coaxial elements mounted rotatably with respect to a spring, and two seats for positioning the spring. Each seat comprises a dorsal pivot projection configured in two coaxial elements. The pivot projection is delimited by a cylinder portion whose section is a first circular arc whose tangent forms an angle α with the axis of the spring. The section of each receptacle is formed by a second circular arc, having the same center and radius of curvature as the first circular arc, the tangent of which forms with the axis of the spring an angle γ greater than α. The pivot axes are parallel to one another at a distance L, and are included in a plane located at a distance R from the rotation axis. The maximum deflection angle of the device is δ. γ is within the range [arctg(L/2R)−δ/8 to arctg(L/2R+δ].
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