Chassis Lifting Support at Common Connection Points
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Solution Overview
Problem
Existing chassis and lifting support technologies face challenges in securely supporting vehicles with lightweight, thin-walled chassis parts that are not designed for vertical loads, and they often require disruptive and less effective mounting methods that compromise structural integrity and accessibility.
Innovation Solution
The proposed solution involves a chassis with a lifting support arrangement that utilizes jacks mounted at common connection points between chassis parts, using screw connections and deformed connecting elements to stabilize force application, and features flexible mounting options such as web openings and clamping devices, allowing for optimized support and height adjustment while minimizing disruption and enhancing load absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If jacks are mounted on lightweight, thin-walled chassis parts, then the chassis weight is reduced, but the structural integrity and load-bearing capacity deteriorate
Solution Approach 1:
The patent combines multiple chassis components (longitudinal beams, cross members, and reinforcement elements) into integrated connection points that collectively bear the jack loads. This merging approach distributes stress across multiple structural elements rather than relying on a single thin-walled component, thereby maintaining strength while preserving lightweight design.
Solution Approach 2:
The patent applies localized reinforcement at specific connection points where jacks are mounted, rather than reinforcing the entire chassis. These reinforcement elements are strategically positioned to concentrate structural strength exactly where the vertical loads are applied, allowing the rest of the chassis to remain lightweight and thin-walled.
2Ease of manufacture
If jacks are mounted at common connection points of chassis parts, then the number of mounting holes and structural disruption is reduced, but the complexity of force distribution increases
Solution Approach 1:
The patent designs common connection points that serve multiple functions: they connect chassis components together and simultaneously provide mounting surfaces for jacks. This multi-functionality eliminates the need for separate mounting holes and simplifies the manufacturing process while the internal structure of these connection points is engineered to naturally distribute forces across all connected components.
3Force
If lifting supports are positioned at the entry point to driver's cab, then the load on front axle is relieved, but the accessibility and disruption at entry point increases
Solution Approach 1:
The patent positions the lifting supports at the entry point but extends them in the vertical dimension to clear the entry path horizontally. The supports are designed with sufficient height and positioning that their load-bearing function is achieved while their physical presence does not obstruct the horizontal movement of personnel entering or exiting the cab.
4Reliability
If jacks are arranged near the rear axle, then the center of gravity is close to the support point, but the space for suspension components is reduced
Solution Approach 1:
The patent nests the jack mounting structure within or alongside the existing suspension component layout near the rear axle. The connection points are integrated with the axle assembly and suspension mounting locations, allowing jacks to be positioned close to the center of gravity for optimal load absorption while sharing the same spatial envelope with suspension components, thereby minimizing the reduction of available space.
Data Source
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AI summary
The invention relates to a chassis (2) for motorized road vehicles (1), wherein the chassis (2) has a lifting support arrangement (3) with one or more lifting supports (6, 7, 8) which is/are mounted at a common connection point (32) of several chassis parts (20, 22, 28), in particular at a common connection point (32) of a longitudinal beam (22) and a rear extension (20).