Telescopic Rollover Limb for Extended Support Height
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Solution Overview
Problem
Conventional rollover protection systems are limited by restricted spacing and limb length, which restricts the maximum achievable support height and pivoting angle, making it difficult to provide adequate protection space for passengers.
Innovation Solution
A telescopically extendable limb is designed to increase the support height and breadth by allowing one limb to be longer than the bearing spacing, with additional telescopic parts and locking mechanisms to secure the extended position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the spacing between bearing points of the limbs is increased, then the support height and protection space are improved, but the installation space requirements and device complexity increase
Solution Approach 1:
The pivoted-out limb is nested within the constructional space between the two bearing points, allowing the limb to be accommodated in a compact configuration during normal operation while still achieving extended support height when activated
Solution Approach 2:
The limb configured to be longer than the bearing spacing is arranged on the inside of the vehicle, utilizing the third dimension (vehicle interior space) to achieve greater support height without increasing the horizontal installation footprint
2Length of moving object
If the limb length is increased beyond bearing spacing, then the support breadth and protection space are improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The limb is divided into multiple telescopic parts that can be locked in the protection position, allowing the limb to achieve extended length through segmented sections rather than a single complex long structure
Solution Approach 2:
The limb transitions from a static fixed-length structure to a dynamic telescopic structure that can extend and retract, allowing the same physical component to serve multiple length requirements
Data Source
AI summary
In the rollover protection system, the rollover body comprises two limbs which, with in each case one end, are pivotable in bearings arranged spaced apart transversely with respect to the vehicle, and which, by means of the other ends thereof which can be pivoted out, can be locked together in the protection position. To increase the support height and support breadth of a system of said type, it is proposed that one of the limbs is designed such that it can be telescopically lengthened. Said limb comprises the telescopic parts which, in the extended state, are locked, so as to be prevented from being retracted again, by means of a spring-loaded bolt in conjunction with a deployable locking element in the pushed-out position.