Resin Bracket with Vertical Frame for Torsional Rigidity
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Solution Overview
Problem
Conventional bracket structures face challenges in securing sufficient rigidity when transitioning from metal materials like iron to resin materials, particularly under torsional stresses.
Innovation Solution
A bracket structure featuring a resin casing with a mounting part and a frame-shaped part erected from its peripheral edge, incorporating lattice-like distortion reinforcing parts and ribs to enhance rigidity and distribute stress effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a resin material is used for the bracket instead of metal, then weight is reduced and ease of manufacture is improved, but rigidity and resistance to deformation deteriorate
Solution Approach 1:
The patent introduces a frame-shaped part that extends in the vertical dimension from the mounting part. This three-dimensional structure distributes torsional stresses along the vertical direction and prevents planar deformation, thereby enhancing rigidity while maintaining the lightweight resin material
Solution Approach 2:
The bracket is divided into functionally distinct parts: a mounting part for securing the engaged part and a frame-shaped part for providing structural support. This segmentation allows the mounting part to be optimized for attachment while the frame-shaped part specifically addresses rigidity requirements
2Ease of manufacture
If a resin material is used for the bracket instead of metal, then ease of manufacture is improved, but rigidity and resistance to deformation deteriorate
Solution Approach 1:
The frame-shaped part extending vertically from the mounting part creates a three-dimensional structure that can be efficiently formed through resin molding. This design allows the molding process to produce a structurally sound bracket with adequate rigidity while maintaining manufacturing simplicity
Solution Approach 2:
The bracket utilizes a resin material with integrated structural features (frame-shaped part) that combine the ease of resin molding with enhanced mechanical properties. The design leverages the material's formability while compensating for inherent rigidity limitations through geometric configuration
3Ease of manufacture
If the bracket structure is simplified for resin molding, then ease of manufacture is improved, but resistance to torsional stress deteriorates
Solution Approach 1:
The vertical extension of the frame-shaped part adds a dimensional element that effectively resists torsional stresses without complicating the molding process. The structure uses vertical height to create torsional stiffness while maintaining compatibility with standard resin molding techniques
Data Source
AI summary
A bracket structure is provided with a casing formed of a resin material, and the casing includes a mounting part formed so as to allow an engaged part to be mounted thereon, the engaged part being operated by engagement with an engaging part, and a frame-shaped part that is erected from a peripheral edge of the mounting part to be continuously formed in a peripheral direction thereof.