Bearing structure for shelving
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Solution Overview
Problem
Existing shelving bearing structures face challenges in distributing the longitudinal and transverse components of load effectively, leading to instability and reduced maximum load capacity due to the use of single-shaped recesses and attachment systems that do not adequately manage load distribution.
Innovation Solution
The proposed bearing structure features a vertical upright with multiple longitudinal sides and an angular bracket with complementary attachment and clamping mechanisms, including expanded and restricted portions, and interlocking protrusions, to securely attach the angular bracket to the upright and cross-piece, ensuring balanced load distribution through multiple attachment points and a cold riveting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-shaped recesses and attachment portions are used to attach the angular bracket to the upright, then the device complexity is reduced, but the load distribution between longitudinal and transverse components deteriorates
Solution Approach 1:
The attachment system is segmented into two distinct types of recesses (first recesses and second recesses) with different shapes and functions. The first recesses handle longitudinal load components while the second recesses handle transverse load components, allowing independent optimization of each attachment interface for its specific loading condition.
Solution Approach 2:
Different regions of the upright are given different local qualities through the use of differently shaped recesses. The first longitudinal side has first recesses optimized for longitudinal attachment, while the second longitudinal side has second recesses optimized for transverse attachment, making each local region specialized for its specific loading direction.
2Ease of manufacture
If a single attachment plane is used to attach the angular bracket to the upright, then the ease of manufacture is improved, but the load distribution capability deteriorates
Solution Approach 1:
The attachment system transitions from a single-plane attachment to a multi-dimensional attachment configuration. By utilizing recesses on two different longitudinal sides of the upright, the attachment extends into additional spatial dimensions, creating a three-dimensional load distribution network that significantly enhances load-bearing capacity while remaining manufacturable.
3Device complexity
If the angular bracket is attached along a single attachment plane, then the device complexity is reduced, but the stability of the bearing structure deteriorates
Solution Approach 1:
The attachment configuration employs asymmetric placement of recesses on different longitudinal sides of the upright. This asymmetric arrangement creates an inherently stable geometric configuration that resists rotational and lateral forces, enhancing the overall stability of the bearing structure while maintaining relatively simple device complexity.
Data Source
AI summary
The bearing structure for shelving comprises: —a vertical upright comprising a first metal section provided with at least a first longitudinal side and with at least a second longitudinal side, the first longitudinal side and the second longitudinal side being flat, continuous and transverse to each other; —a longitudinal cross-piece; —an angular bracket to be interposed between the vertical upright and the longitudinal cross-piece and comprising a first longitudinal face and a second longitudinal face, the first longitudinal face and the second longitudinal face being flat, contiguous and transverse to each other; wherein it comprises first connecting means arranged on the first longitudinal side and the first longitudinal face, and second connecting means, arranged on the second longitudinal side and the second longitudinal face, the first connecting means and the second connecting means coupling the angular bracket to the vertical upright.