Vertical Cab Mounting Interface for Vibration Damping and Alignment
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Solution Overview
Problem
Conventional mounting arrangements for vehicle cabs face challenges in balancing durability and ease of installation, as well as effective vibration damping, particularly in heavy-duty vehicles, due to horizontal interfaces that compromise the longevity and comfort of the cab.
Innovation Solution
A vertical mounting arrangement with a fastening member and a bushing system that allows for easier alignment and secure mounting of the cab to the chassis, incorporating elastomeric materials for damping and separate damping members to control rebound and compression travel, enhancing durability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a horizontal mounting interface is used between the cab and chassis, then the mounting arrangement can be simpler in structure, but the bushing experiences increased wear and vibration propagation occurs
Solution Approach 1:
The patent inverts the conventional horizontal mounting interface to a vertical mounting interface. The mounting unit extends vertically from the chassis bracket to the cab bracket, with the fastening member extending along the vertical axis. This inversion changes the load path and bushing orientation, reducing wear and improving durability while maintaining structural simplicity.
2Ease of operation
If a horizontal mounting interface is used, then the mounting arrangement can be easier to implement, but the alignment process becomes complex and time consuming
Solution Approach 1:
The patent transitions from a horizontal two-dimensional alignment problem to a vertical one-dimensional alignment problem. The vertical mounting interface with the fastening member extending along the vertical axis provides a natural alignment path, reducing the complexity of alignment procedures and the time required for proper installation.
3Volume of moving object
If a horizontal mounting interface is used, then the mounting arrangement can be more compact, but space for damping elements is limited
Solution Approach 1:
The patent incorporates damping elements such as bushings and elastomeric materials in advance within the vertical mounting interface structure. The mounting unit includes provisions for these damping elements before final assembly, ensuring adequate space is allocated for vibration mitigation without compromising the compact design of the overall mounting arrangement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The vertical interface facilitates easier and more durable mounting, provides improved vibration damping, and ensures a smoother ride by controlling cab movements relative to the chassis, addressing the limitations of horizontal interfaces.
Implementation Method 1
a mounting arrangement for mounting a cab to a chassis of a vehicle... include an elastic bushing interface for preventing vibrations from the chassis propagating to the cab
Implementation Method 2
the mounting unit may comprise a bushing... The bushing may be in a flexible material such as an elastomeric material
Implementation Method 3
the cab is easily aligned and mounted to the chassis due to fastening member and mounting unit providing a guide since the cab and mounting unit may rest on the chassis during mounting and alignment
Implementation Method 4
the vertical interface between the chassis and cab enables space for damping elements for example for mitigating vertical rebound travel
Data Source
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AI summary
A mounting arrangement (100) for mounting a cab (200) to a chassis (300) of a vehicle, the mounting arrangement (100) comprising: - a chassis bracket (50) adapted to be mounted to the chassis (300), - a cab bracket (60) adapted to be mounted to the cab (200), and - a mounting unit (10) adapted to connect the chassis bracket (50) and the cab bracket (60), wherein the mounting unit (10) comprises a core member (45), the core member (45) comprising an aperture (11) being arranged to extend along a mounting axis (MA) extending at least partially in a vertical direction, whereby the mounting arrangement (100) further comprises a fastening member (20) adapted to be mounted to the mounting unit (10) and one of the cab bracket (60) and the chassis bracket (50), the fastening member (20) being arranged to extend along the mounting axis (MA) inside the aperture (11).