Roof bow

Abstract

A roof bow reduces noise and vibration of a motorized vehicle and includes a body having a length and two ends spaced apart from each other. The body also includes a metal and has thickness from about 0.25 mm to about 2 mm substantially along the length. Moreover, the body defines a base and first and second edges extending from the base. Each of the base and the first and second edges extend substantially along the length between the ends of the body. The first and second edges are each disposed transverse to the base and laterally spaced apart from each other substantially along the length. The roof bow also includes a plurality of ribs. The plurality of ribs have a thickness from about 0.5 mm to about 5 mm and include a polymer. The plurality of ribs is disposed between the first and second edges and coupled to the body.

Description

technical field [0001] The present invention generally relates to roof bows for reducing noise and vibration of motor vehicles. More particularly, the top bow beam includes a body and a plurality of ribs, each rib having a particular thickness. Background technique [0002] Objects used in industrial, commercial and residential applications have a tendency to vibrate and generate unwanted noise. Household appliances such as dishwashers, washing machines and clothes dryers are often made of stainless steel in combination with other metals and plastics. In use, these appliances tend to generate high levels of noise and vibration which reverberate through the metal and are commercially undesirable. [0003] Motor vehicles, like household appliances, are usually made of metal and plastic. As a result, motor vehicles also tend to generate very high noise and vibrations that resound in metal and plastic. For this reason, it is well known in the art to study noise, vibration an...

AI Technical Summary

Problems solved by technology

Many of the above mechanisms for reducing NVH are incompatible with such standards and requirements

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