Vehicle Suspension Arm Triangular Profile Rigidity
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Solution Overview
Problem
Conventional vehicle suspension arm assemblies are heavy due to the need for increased rigidity, which is achieved by enlarging pipe diameters or boss thickness, leading to increased weight and potential interference issues during operation.
Innovation Solution
A suspension arm assembly with a pivot pipe, laterally extending pipes connected to a U-shaped band and a joint member with a plate portion covering the U-shaped band, providing improved connection strength and spatial rigidity without increasing pipe diameters or boss thickness, and featuring a bent plate portion to prevent interference with the knuckle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the diameters of the pipes or the thickness of the boss are increased to secure rigidity, then the rigidity of the suspension arm assembly is improved, but the weight of the suspension arm assembly increases
Solution Approach 1:
The patent introduces a U-shaped band that wraps around the pipes in a spatial configuration, adding a dimensional aspect to the connection structure. This spatial arrangement creates a triangular profile that inherently provides rigidity without requiring increased pipe diameters or boss thickness, thus maintaining lightweight construction while achieving the desired structural stability.
Solution Approach 2:
The U-shaped band features a curved configuration that conforms to the cylindrical surfaces of the pipes. This curvature allows the band to distribute loads more effectively across the pipe surfaces, enhancing the connection strength and overall rigidity without adding excessive material or weight to the assembly.
2Stability of the object's composition
If the suspension arm assembly structure is made firm to minimize vibration transmission, then the rigidity is improved, but the weight increases
Solution Approach 1:
The suspension arm assembly is divided into distinct functional components: pipes, U-shaped band, and boss portion. This segmentation allows each component to be optimized for its specific function - the pipes for structural support, the U-shaped band for connection and rigidity, and the boss for knuckle attachment - achieving overall firmness without uniformly increasing the weight of all components.
Solution Approach 2:
The assembly combines different structural elements (pipes, U-shaped band, boss) into a composite structure where each material and component form is selected for its optimal performance characteristics. This composite approach allows the assembly to achieve high rigidity through the synergistic combination of components rather than relying on any single heavy element.
3Stability of the object's composition
If additional structural elements are added to increase rigidity, then the rigidity is improved, but the device complexity increases
Solution Approach 1:
The U-shaped band serves multiple functions simultaneously: it connects the pipes to each other, provides structural rigidity through its triangular profile configuration, and eliminates the need for separate reinforcement elements. This merging of functions into a single component achieves the desired rigidity without increasing device complexity.
Solution Approach 2:
The U-shaped band is designed as a multi-functional element that performs connection, structural support, and rigidity enhancement all in one component. This universal design approach allows a single element to fulfill multiple structural requirements, avoiding the need for additional specialized components and thereby maintaining simplicity in the overall assembly.
Data Source
AI summary
A suspension arm assembly for a vehicle includes a pivot pipe pivotally attached to a vehicle body frame, a pair of pipes extending in a lateral direction of a vehicle body, a joint member attached to distal end portions of the pipes, and a substantially U-shaped band. Proximal end portions of the pipes are connected to the pivot pipe and spaced apart from each other in a front-rear direction, and distal end portions thereof are arranged close to each other, thereby forming a substantially triangular profile. The joint member includes a plate portion and a boss portion having a knuckle attached thereto. The distal end portions of the pipes are operatively connected to a convex surface of the U-shaped band, and the plate portion of the joint member is attached to the pipes for covering the U-shaped band.