Frictional damping strut

F - Mech Eng,Light,Heat,Weapons – 16 – F

Patent

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Details

F16F 7/08 (2006.01)

Patent

CA 2504780

An inner damping member (20) is axially engaged with an outer housing. The outer housing (10) is connectable to a tensioner arm (11). A wegde member (30) connected to an immoveable mounting member (40) is axially engaged with an inner portion of the inner damping member. The outer housing is axially moveable relative to the wedge member. A spring (50) bears upon and urges the outer housing away from an end cap (60). The end cap comprises a rod (70), which extends axially within the wedge member and has an end connected to the inner damping member. The rod transmits a spring load force from the end cap to the inner damping member such that the inner damping member radially expands against the outer housing in response to the spring load force, thereby creating a frictional force between the inner damping member and the outer housing which damps an outer housing movement in proportion to the spring force.

La présente invention a trait à un organe d'amortissement interne (20) en engagement axial avec un logement externe. Le logement externe (10) est apte à être relié à un bras tendeur (11). Un organe de blocage (30) relié à un organe de montage inamovible (40) est en engagement axial avec une portion intérieure de l'organe d'amortissement interne. Le logement externe est axialement mobile par rapport à l'organe de blocage Un ressort (50) exerce une influence et une contrainte sur le logement en éloignement d'une plaque de blocage (60). La plaque de blocage comporte une tige (70), qui s'étend axialement au sein de l'organe de blocage et comprend une extrémité reliée à l'organe d'amortissement interne. La tige transmet une force de contrainte de rappel depuis la plaque de blocage vers l'organe d'amortissement interne de sorte que l'organe d'amortissement interne se dilate radialement contre le logement externe sous l'action de la force de contrainte de rappel ressort, produisant ainsi une force de friction entre l'organe d'amortissement interne et le logement externe qui amortit un mouvement du logement externe proportionnelle à la tension de rappel.

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