Angled Delimiting Elements in Support Profile Stiffness
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Solution Overview
Problem
Support profiles for support arm systems face challenges in achieving high stiffness while allowing simple cable installation, especially under varying load directions and torsional forces.
Innovation Solution
The support profile design incorporates delimiting elements that extend at an angle from a connecting element to the side walls, providing additional stiffening against bending and torsion, and includes corner pieces with integrated screw channels and a connector system for secure cable access and mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a horizontal web is integrally moulded to the vertical side walls to increase profile stiffness, then the profile stiffness is improved, but the device complexity increases
Solution Approach 1:
The support profile is divided into modular components: vertical side walls, horizontal webs, and corner pieces that can be separately manufactured and then assembled. This segmentation allows each component to be optimized independently while simplifying the overall manufacturing process and reducing mold complexity.
Solution Approach 2:
Multiple functional elements are combined into integrated components such as corner pieces that simultaneously serve as structural connectors and mounting points with integrated screw channels, reducing the total number of separate parts while maintaining structural integrity.
2Strength
If closed support profiles are used to achieve high load capacity, then the strength is improved, but the ease of operation deteriorates due to difficult cable installation
Solution Approach 1:
The support profile is designed with pre-planned cable access features including insert openings positioned at optimal locations and integrated cable management paths within the profile structure, allowing cables to be routed during initial installation without requiring later modifications or disassembly.
Solution Approach 2:
Insert openings and transition pieces serve as intermediary elements that provide controlled access to the enclosed profile interior, enabling cable insertion while maintaining the closed-profile structure's structural integrity and load-bearing capacity.
3Strength
If delimiting elements are arranged horizontally to resist bending moments, then the profile stiffness is improved, but the adaptability deteriorates for different load directions
Solution Approach 1:
The support profile employs delimiting elements with varying orientations and dimensions at different locations: horizontal webs for primary bending resistance, angled webs for torsional resistance, and vertically extended corner pieces for multi-directional load handling, allowing each local region to be optimized for its specific stress conditions.
Solution Approach 2:
The profile structure incorporates asymmetric features including corner pieces with different extension lengths in vertical and transverse directions, and delimiting elements positioned at non-uniform intervals, enabling the structure to handle varying load directions and moments more effectively than a symmetric design.
Data Source
AI summary
The invention relates to a support arm profile for a support arm system, comprising a receiving space for cables or the like which is open toward the surroundings, wherein a connecting element is molded inside the support arm cross-section and is connected indirectly or directly to two opposite side walls of the profiled support element. In such a support profile, high profile stiffness, which meets all the requirements of a support arm system, can be achieved in that two delimiting elements are connected, spaced apart, to the connecting element, and that the delimiting elements extend from the connecting element at an angle to the side walls.