Handle the Bounce with Toyota Leaf Spring by aihaozhe2

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									One of the good things about driving a Toyota is the smoothness it offers to your ride.
And the main factor that contributes to the smoothness of your ride is your car's
suspension. It is the suspension system of your car that keeps your car smooth and
manageable, especially in rough roads that have bumps and cracks. And one of the
components that make up the suspension system of your Toyota is the Toyota Leaf
Spring.

Located in the underbelly of your car, the Toyota Leaf Spring is a simple form of
spring that is used is most suspension system systems of motor vehicles. Also called
as a semi-elliptical spring or cart spring, the Toyota Leaf Spring takes the appearance
of a lean arc-shaped length of a steel spring with a rectangular cross-section. The
center of the arc in the spring gives a location for the axle, wherein tie holes are
provided at either end in order to connect to the vehicle body. For heavy vehicles such
as SUVs, the leaf spring can be constructed of several leaves stacked on top of each
other in multiple layers, often with systematically shorter leaves. In addition, Leaf
springs can provide locating and to some extent damping as well as springing
functions. There are a variety of leaf springs available in the market, and they
regularly use the word elliptical. Elliptical or full elliptical leaf springs to two circular
arcs linked at their tips. This type of spring is connected to the frame at the top center
of the upper arc and with the bottom center joined to the live suspension components
like the solid front axle. Additional suspension components, such as trailing arms, are
often needed for this design, except for semi-elliptical leaf springs that used in the
Hotchkiss drive. Such type of spring engaged the lower arc, hence its name.
Quarter-elliptic springs usually had the thickest part of the stack of leaves fixed into
the rear end of the side pieces of a short ladder frame, with the free end attached to the
differential, such as in car made during the 1920s.

Leaf springs were very common on automobiles right up to the 1970s, wherein cars
used a front wheel drive, and more sophisticated suspension designs forced
automobile manufacturers to use more advanced coil springs instead. U.S. passenger
cars used leaf springs until 1989 where the last production vehicle with a leaf spring
suspension was marketed. However, Toyota Leaf Springs are still used today in
heavier passenger models such as vans and SUVs, and even in railway carriages. For
heavy automobiles, leaf springs have the advantage of spreading the load more widely
over the vehicle chassis, whereas coil springs just shift it to a single point. A more
modern implementation for the leaf spring is the parabolic leaf spring. The parabolic
leaf spring is characterized by fewer leaves and whose thickness varies from centre to
ends following a parabolic curve. In such a design, inter-leaf friction is reduced, and
therefore there is only contact between the springs at the ends and at the centre where
the axle is attached. Parabolic leaf springs use spacers to prevent contact at other
points. Aside from weight reduction, another main advantage of parabolic springs is
their greater flexibility, which translates into vehicle ride quality that approaches that
of coil springs.

								
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