Curved Trussed C-Frame Tool Holder for Lightweight Stiffness
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Solution Overview
Problem
C-frame designs used in joining or forming applications face challenges with high weight, leading to increased bending-up angles and lateral force strains, which are undesirable, and there is a need for a more mobile and stiff C-shaped tool holder that can handle varying loads effectively.
Innovation Solution
A C-shaped tool holder with an integral frame structure composed of multiple-vertex frame bodies, such as triangles, quadrilaterals, and pentagons, connected by continuously curving surfaces, which optimally distributes mechanical stress and reduces peaks, allowing for weight reduction and increased stiffness through the use of materials like steel, aluminum, or hybrid fiber-reinforced plastics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a trussed frame structure is used to reduce weight, then weight characteristics are improved, but stiffness against bending-up deteriorates
Solution Approach 1:
The patent applies curvature by rounding the bar elements in the junction points of the trussed frame. This spherical/curved transition area distributes mechanical stress more effectively, reducing stress peaks while maintaining structural integrity. The curved design allows the lightweight trussed structure to better resist bending forces without requiring additional material, thus improving stiffness while maintaining weight reduction.
Solution Approach 2:
The patent employs composite material structures by combining multiple bar elements in a trussed configuration with rounded junctions. This composite approach creates a structure that leverages the geometric arrangement of triangular elements for weight efficiency while the integrated rounded connections provide enhanced stiffness and stress distribution, resolving the contradiction between lightweight design and bending resistance.
2Ease of operation
If the C-frame size is reduced to improve mobility, then ease of operation is improved, but load-bearing capacity deteriorates
Solution Approach 1:
By implementing rounded bar elements at junction points, the patent enhances the stress distribution in smaller C-frame structures. This curvature allows compact designs to maintain higher load-bearing capacity relative to their size, enabling reduced dimensions without proportionally reducing strength, thus improving mobility while preserving load capacity.
Solution Approach 2:
The patent changes the geometric parameters of the frame structure by introducing curved transitions and optimizing the arrangement of truss elements. These parameter changes allow the C-frame to achieve better strength-to-size ratios, enabling compact dimensions that maintain sufficient load-bearing capacity for improved mobility.
3Strength
If conventional C-frame designs are used to ensure load-bearing capacity, then strength is improved, but weight increases
Solution Approach 1:
The patent segments the solid C-frame structure into a trussed configuration with multiple bar elements arranged in triangular patterns. This segmentation reduces material usage and weight while the rounded junction points ensure that load-bearing capacity is maintained by distributing stresses effectively across the segmented structure.
Solution Approach 2:
The curved transition areas at junction points enable the segmented trussed structure to achieve weight reduction while maintaining strength. The spherical/curved geometry optimizes stress flow through the segmented elements, allowing the lightweight design to carry loads comparable to conventional solid frames.
Data Source
AI summary
A C-shaped tool holder consisting of an integral frame structure that is delimited by an inner and an outer edge, each C-shaped, in which the C-shaped edges are made from and are connected to each other by at least five multiple-vertex frame bodies that are integrated into the frame structure, in particular triangles, quadrilaterals and pentagons, wherein in each case an inner side of the individual multiple-vertex frame bodies is a connecting surface, continuously curving along a circumferential direction, along the sides of the respective multiple-vertex frame body, and the inner and the outer C-shaped edge is each delimited to the outside by a continuously curving lateral surface.