Supporting Rack Assembly With Fixed-Height Shelf Holder Locking

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Solution Overview

Problem

Conventional rack assemblies face issues with vision errors during assembly due to varying hook heights and susceptibility of hooks to detachment under external forces, leading to improper mounting and stability problems.

Innovation Solution

The supporting rack assembly features a frame module with pairs of frames and shelf holders having specific inserting plates and engagement plates that allow for precise height adjustment and secure mounting, preventing detachment through a pivoting mechanism and clamping force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If hooks are inserted into slits to be mounted on frame modules, then shelf bodies can be mounted and height can be altered, but vision errors affect mounting accuracy causing hooks to be positioned at different heights

Engineering Contradiction:
Improveheight adjustabilityVSAvoidmounting precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The shelf holder is divided into multiple functional components: holder body, first inserting plates, second inserting plates, and engagement plates. Each component serves a specific function in the mounting process, with the inserting plates providing precise positioning features that eliminate vision errors during assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The conventional hook-slit mechanical connection is replaced with a more precise plate-and-hole insertion system. The inserting plates with precise geometric features provide deterministic positioning, replacing the imprecise hook insertion into slits that was affected by vision errors.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If hooks are inserted into slits for mounting, then shelf bodies can be positioned, but hooks may detach when forced by external forces from objects

Engineering Contradiction:
Improveease of mountingVSAvoidmounting reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

Multiple functional features are merged into a single shelf holder component: the holder body provides structural support, the first and second inserting plates provide precise positioning and insertion guidance, and the engagement plates with protrusions provide secure locking. This integration ensures both ease of mounting and high reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The engagement plates with protrusions are designed to preemptively counteract external forces before they can cause detachment. The protrusions engage with corresponding features on the frame, creating a preliminary locking action that prevents the shelf holder from detaching when subjected to external loads from stored objects.

Inventive Principle:
Principle #9Preliminary anti-action

3Manufacturing precision

If multiple shelf holders are mounted on frame pairs with inserting plates, then assembly accuracy is improved and detachment is prevented, but device complexity increases

Engineering Contradiction:
Improveassembly accuracyVSAvoidstructural complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The shelf holder design is universal and can be applied to multiple frame modules throughout the rack assembly. The same holder body with inserting plates and engagement plates can be mounted at different heights and positions, providing multi-functionality that reduces overall system complexity despite the detailed design of individual components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9167896B1Supporting rack assembly
Publication Date: 2015.10.27 SHUTER ENTERPRISE
  • US9167896B1 patent drawing
  • US9167896B1 patent drawing
  • US9167896B1 patent drawing

AI summary

A supporting rack assembly has a frame module, multiple shelf holders and multiple shelf bodies. Each shelf holder has a holder body, a supporting portion, two first inserting plates, two second inserting plates, and two engagement plates. The supporting portion is connected with the holder body. The first inserting plates are connected with an end of the holder body, and the second inserting plates are connected with the other end of the holder body. The first inserting plates and the second inserting plates are inserted into the frame module. The engagement plates are connected with the ends of the holder body. The shelf bodies are mounted on the shelf holders.