Why Laminated Leaf Springs Are Used In Automobiles

The flat plates are called leaves of the spring.

Why laminated leaf springs are used in automobiles.

They were originally called carriage or laminated springs. A leaf spring is a simple form of spring commonly used for the suspension in wheeled vehicles originally called a laminated or carriage spring and sometimes referred to as a semi elliptical spring elliptical spring or cart spring it is one of the oldest forms of springing appearing on carriages in england after 1750 and from there migrating to france and germany. Then two pieces marked 2 are put together side by side to form another leaf and placed below the top leaf. As shown in the picture the leaf spring or laminated leaf spring consists of a couple of full length leaf and a number of graduated leaves.

Automotive multi leaf springs used in automotive vehicles normally consists of full length leaves and graduated length leaves. A laminated spring or a leaf spring being one of the overriding components of an automobile suspension system is nowadays considered to be a potential factor for reducing vehicle weight. What an automobile leaf spring looks like. The central strip marked 1 is the master leaf which is placed at the top.

Leaves of a laminated leaf spring do have certain amount of nipping so that there will be gaps between the leaves. Its system has been tried and true primarily used on almost all vehicles up to the 1970 s and still today on trucks and vans that haul heavy loads. First of all in order to have an idea of working principle of a leaf spring let us think of a practical situation diving board in a swimming pool the diving board is a cantilever with a load the diver at its free end. Laminated leaf spring the lozenge shaped plate is cut into several longitudinal strips as indicated above.

Leaf springs were simple in design and cheap to produce in comparison with the early springs and dampers therefore it was the go to setup once cars were being fully mass produced to ensure. The leaf at the top has a maximum length. You can also observe from the picture of the leaf spring that the thickness of the whole spring is maximum at the centre and is gradually decreases towards the ends. It consists of a series of flat plates usually of semi elliptical shape.

The longest leaf at the top is called a. The specimen under this research work consists of nine leaves two eye pins. Multi leaf spring is widely used for the suspension of trucks and railway wagons. In the similar manner other pairs of strips marked 3.