Keyboard Instrument Stand Structure for Wall-Force Resistance
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Solution Overview
Problem
Existing stands require increased rigidity to prevent deformation when legs are forced against a wall, often compromising design aesthetics.
Innovation Solution
A stand design featuring a horizontal spanning member, polygonal connectors, and leg members with angled rectangular cross sections fixed to the connectors, enhancing rigidity while maintaining design aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the legs are made with higher rigidity to prevent deformation when forced against a wall, then the structural stability is improved, but the design aesthetics are compromised
Solution Approach 1:
The patent applies different cross-sectional shapes to different parts of the leg members. The upper portion has a circular cross-section for aesthetic purposes, while the lower portion has a rectangular cross-section optimized for structural stability when forced against a wall. This local differentiation allows each portion to fulfill its specific function without compromising overall design aesthetics.
Solution Approach 2:
The patent transitions from a uniform one-dimensional leg design to a two-dimensional cross-sectional variation along the leg length. By changing the cross-sectional shape from circular to rectangular in the lower portion, the design achieves enhanced structural performance in the critical force-bearing region while maintaining aesthetic circular forms in visible upper portions.
2Strength
If the legs are made with higher rigidity to resist deformation, then the force resistance is improved, but the manufacturing complexity increases
Solution Approach 1:
The leg members are divided into distinct segments: an upper portion with circular cross-section and a lower portion with rectangular cross-section. This segmentation allows each portion to be manufactured using optimized processes appropriate to its functional requirements, reducing overall manufacturing complexity compared to creating a single complex uniform structure.
Solution Approach 2:
By applying different cross-sectional geometries to different portions of the leg, the patent enables localized optimization of manufacturing processes. The upper aesthetic portion can be manufactured with focus on surface quality, while the lower structural portion can be manufactured with focus on strength, using appropriate techniques for each region.
Data Source
AI summary
A stand includes a horizontal spanning member, a connector including a polygonal portion and to which the horizontal spanning member is fixed, and a first leg member including a first leg main body having a rectangular horizontal cross section and configured to be fixed to a first surface of the polygonal portion.