Fitting device for joining members
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Solution Overview
Problem
The existing coupling mechanism between crosspieces and uprights in cabinets is awkward, especially in confined spaces, and results in increased weight due to the need for large sections to ensure structural stability, making it difficult for operators to access and tighten screws from inside the cabinet.
Innovation Solution
A fitting device with a dihedron-shaped structure featuring perpendicular walls, retaining blocks, and lock screws that allow for external access and tightening, providing a semi-closed profile for members with a double J-shape, reducing the section size and weight while maintaining structural rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If member section is increased to ensure structural stability, then structural rigidity is improved, but weight increases significantly
Solution Approach 1:
The patent segments the structural function into two parts: the members themselves and the fitting device. By introducing the fitting device with dihedron structure and retaining blocks, the members can have reduced section sizes while the fitting device provides the necessary structural stability and rigidity through its geometric configuration and locking mechanism.
Solution Approach 2:
The patent creates a composite system combining members with semi-closed profiles and a separate fitting device structure. This composite approach allows optimization of each component - members can be lighter with semi-closed sections while the fitting device provides the structural reinforcement needed for stability.
2Weight of moving object
If members have semi-closed shape with reduced section, then weight is reduced, but access for tool operation becomes more difficult
Solution Approach 1:
The patent introduces the fitting device as an intermediary element between the members and the locking mechanism. The fitting device with its dihedron structure and retaining blocks provides external access points for tool operation, mediating between the semi-closed member shape and the need for easy tool access from outside the cabinet.
Data Source
Figure 1~2
AI summary
A fitting device (100) for joining members, comprising a plurality of walls (110, 120, 130) respectively perpendicular to one another and identifying a rear zone; each wall (110, 120, 130) comprising a first surface (111, 121, 131) facing said rear zone and a second surface (112, 122, 132) opposite said first surface, configured to enable retention of members (300, 400) having a semi-closed shape; said device (100) comprising retaining means (170) insertable between terminal lateral portions of said members having a semi-closed shape so as to be retained in an area substantially delimited by said semi-closed shape, said terminal lateral portions of the members defining respective edges (600) associated to each second surface (112, 122, 132) of said plurality of walls.