Rear wheel suspension device for motorcycles
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsLars Jansson, Leif Gustafsson
Life of this patent
Estimating the term…
Abstract
Several embodiments of rear wheel suspension systems for motorcycles wherein the leaf spring is employed that is contained within the suspension arm so as to be protected and yet facilitate servicing. The spring is loaded so as to provide a progressive rate and various damper arrangements are also disclosed employing either rotary or tubular-type dampers.
Claims16
A vehicle wheel suspension system comprised of a suspension arm having a first pivot for providing a pivotal connection of said suspension arm on a vehicle frame, a wheel suspension for journaling a wheel for rotation upon said suspension arm at a point spaced from the axis of said first pivot, a leaf spring contained at least in substantial part in said suspension arm, a first connection between said leaf spring and said suspension arm for restraining a first portion of said leaf spring relative to said suspension arm, and a second connection between a second portion of said leaf spring and the vehicle frame, said second connection being formed by a roller follower carried by the frame and engaged with said leaf spring for effecting deflection of said leaf spring upon pivotal movement of said suspension arm about said first pivot, said first and said second connections being spaced from said first pivot.
A vehicle wheel suspension system comprised of a suspension arm having a first pivot for providing a pivotal connection of said suspension arm on a vehicle frame, a wheel suspension for journaling a wheel for rotation upon said suspension arm at a point spaced from the axis of said first pivot, a leaf spring contained at least in substantial part in said suspension arm, a first connection between said leaf spring and said suspension arm for restraining a first portion of said leaf spring relative to said suspension arm, and a second connection between a second portion of said leaf spring and the vehicle frame for effecting deflection of said leaf spring upon pivotal movement of said suspension arm about said first pivot, at least one of said connections to said leaf spring being adjustable for adjusting the preload on said leaf spring.
A vehicle wheel suspension system comprised of a suspension arm having a first pivot for providing a pivotal connection of said suspension arm on a vehicle frame, a wheel suspension for journaling a wheel for rotation upon said suspension arm at a point spaced from the axis of said first pivot, a leaf spring contained at least in substantial part in said suspension arm, a first connection between said leaf spring and said suspension arm for restraining a first portion of said leaf spring relative to said suspension arm, a second connection between a second portion of said leaf spring and the vehicle frame for effecting deflection of said leaf spring upon pivotal movement of said suspension arm about said first pivot, and an abutment carried by said suspension arm about which said leaf spring is deformed upon pivotal movement of said suspension arm.
Dependencies are inferred from the claim text.