Cab Chassis Assembly with Pre-Installed Mounting Brackets
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Solution Overview
Problem
The conventional method of assembling cab chassis vehicles requires significant modification, disassembly, and reassembly by body builders, leading to potential quality and reliability issues, as well as increased downtime and costs, due to the need for custom modifications and integration of truck bodies onto the chassis.
Innovation Solution
The OEM assembles the cab and chassis separately, with pre-formed frame rails and mounting brackets, and installs split wiring and pneumatic harnesses, allowing for a more standardized and efficient integration of truck bodies, maintaining frame integrity and reducing the need for extensive modifications by body builders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If body builders perform significant modification, disassembly, and reassembly of the cab chassis to mount truck bodies, then the truck body can be integrated onto the chassis, but the frame integrity is compromised and the assembly time and costs increase
Solution Approach 1:
The patent applies preliminary action by pre-assembling mounting brackets to the frame rails at the OEM facility before delivering the cab chassis to the body builder. This advance preparation eliminates the need for body builders to perform disassembly and reassembly operations, thereby maintaining frame integrity while enabling truck body integration. The brackets are positioned and secured in advance, so that when the truck body is mounted, no structural modifications or dismantling of the frame is required.
2Adaptability or versatility
If body builders perform significant modification, disassembly, and reassembly of the cab chassis to mount truck bodies, then the truck body can be integrated onto the chassis, but the assembly time and costs increase
Solution Approach 1:
The patent applies preliminary action by pre-assembling mounting brackets to the frame rails at the OEM facility before delivering the cab chassis to the body builder. This advance preparation eliminates the need for body builders to perform disassembly and reassembly operations, thereby maintaining frame integrity while enabling truck body integration. The brackets are positioned and secured in advance, so that when the truck body is mounted, no structural modifications or dismantling of the frame is required.
3Adaptability or versatility
If body builders perform significant modification, disassembly, and reassembly of the cab chassis to mount truck bodies, then the truck body can be integrated onto the chassis, but quality and reliability issues arise
Solution Approach 1:
The patent applies preliminary action by pre-assembling mounting brackets to the frame rails at the OEM facility before delivering the cab chassis to the body builder. This advance preparation eliminates the need for body builders to perform disassembly and reassembly operations, thereby maintaining frame integrity while enabling truck body integration. The brackets are positioned and secured in advance, so that when the truck body is mounted, no structural modifications or dismantling of the frame is required.
4Reliability
If the cab and chassis are assembled separately with pre-formed frame rails and mounting brackets, then the frame integrity is maintained and assembly is standardized, but the complexity of pre-assembly operations increases
Solution Approach 1:
The patent applies segmentation by dividing the assembly process into distinct modules: the cab chassis is assembled separately with pre-formed frame rails and mounting brackets at the OEM facility, and the truck body is mounted separately at the body builder facility. This modular approach allows each subsystem to be optimized independently, with the mounting brackets serving as standardized interface components that simplify the overall integration process while maintaining frame integrity.
Data Source
AI summary
A cab chassis vehicle and a method of assembling a cab-chassis vehicle are provided. A chassis is sub-assembled by connecting a mounting bracket for a truck body to a frame rail via a fastener, installing a chassis-side vehicle harness, and installing a chassis-side body wiring harness. A cab is sub-assembled by installing a connector plate to cover an aperture on an outer panel of the cab, installing a cab-side body wiring harness, connecting the cab-side body wiring harness to the connector plate, and installing a cab-side vehicle harness. The cab is assembled to the chassis to provide a cab-chassis vehicle by connecting the chassis-side body wiring harness to the connector plate, connecting the chassis-side vehicle harness to the cab-side vehicle harness.