Fiber-Reinforced Plastic Chassis with Integral Bearing Receivers

The patent employs fiber-reinforced thermoset plastic composite materials to achieve load-bearing capacity comparable to metal while significantly reducing weight. The continuous fiber reinforcement (glass or carbon fibers) embedded in the thermoset matrix provides high strength-to-weight ratio, enabling the plastic component to bear loads previously requiring metal while being approximately 50% lighter.

The patent implements local fiber orientation and density variations within the plastic component to optimize load-bearing capacity in specific regions. By adjusting fiber placement and concentration in areas of high stress while maintaining lower fiber content in less critical areas, the component achieves metal-level strength where needed without uniformly increasing weight throughout the entire structure.

The patent uses a homogeneous thermoset plastic matrix material that provides uniform corrosion resistance throughout the entire component. Unlike hybrid metal-plastic constructions that create interfaces susceptible to galvanic corrosion, the homogeneous plastic composite structure eliminates dissimilar material contacts, providing consistent protection against corrosion in all regions of the component.

The fiber-reinforced thermoset plastic composite combines corrosion-resistant plastic matrix with inert fiber reinforcement (glass or carbon fibers) to create a material that resists corrosion from salt, moisture, and chemicals. This composite structure provides load-bearing capacity without the corrosion issues inherent in metal or metal-plastic hybrid constructions.

The patent integrates multiple component functions into a single molded plastic part with embedded fiber reinforcement structures. The continuous fibers are incorporated directly into the mold during the thermoset curing process, combining what would traditionally require separate manufacturing steps (molding, fiber placement, assembly) into one integral production operation, thereby simplifying the overall manufacturing process.

The patent pre-positions fiber reinforcement materials in the mold cavity before injecting or curing the thermoset matrix material. This preliminary placement of fibers in their final orientations allows the mold to directly form the finished component with built-in reinforcement, eliminating subsequent assembly operations and reducing manufacturing complexity despite the advanced material processing required.

The patent varies fiber orientation, density, and distribution locally throughout the plastic component to match the specific load requirements of different regions. Areas requiring high strength receive concentrated continuous fiber reinforcement in optimized orientations, while areas with lower load demands have reduced fiber content or different orientations, enabling complex three-dimensional shapes and designs without compromising overall mechanical strength.

The patent employs three-dimensional fiber placement and orientation within the molded plastic part, transitioning from traditional two-dimensional surface reinforcement to volumetric fiber distribution. This allows fibers to be positioned in multiple directions and depths throughout the component thickness, providing strength in all required directions while accommodating complex geometries and design features that would be impossible with conventional planar reinforcement methods.