Unitized Shelf Assembly With Tab-Slot Bracket Connection
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Solution Overview
Problem
Conventional shelving systems require complex assembly methods, such as welding or structural tapes, which are difficult to execute and result in assemblies with limited serviceability and inefficient material usage, especially in heavy-duty applications.
Innovation Solution
A 3-part shelf assembly design that uses a shelf with a support rail and a shelf bracket with a lip and skirt, featuring a tab slot and anchoring tabs, allowing for easy assembly and disassembly without fasteners or welding, and providing improved stability and loading capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding or spot-welding is used to assemble shelf assemblies, then the connection strength is improved, but the ease of manufacture deteriorates due to requiring proper tools and equipment
Solution Approach 1:
The patent replaces welding (a thermal/mechanical process requiring specialized equipment) with a mechanical tab-slot insertion system. The tab on the shelf bracket inserts into a slot on the support rail, creating a secure connection without requiring welding tools or equipment. This substitution maintains connection strength while dramatically improving ease of manufacture and assembly.
2Strength
If welding or spot-welding is used to assemble shelf assemblies, then the connection strength is improved, but the ease of operation deteriorates due to requiring proper tools and equipment
Solution Approach 1:
The patent replaces welding operations with a simple mechanical insertion operation. The tab on the shelf bracket is inserted into the slot on the support rail, allowing assembly to be performed by hand or with minimal tools. This maintains the strength of the connection while making the operation easy to perform.
3Stability of the object's composition
If shelf assemblies are permanently assembled by welding, then the structural stability is improved, but the ease of repair deteriorates as individual parts are not replaceable
Solution Approach 1:
The patent divides the shelf assembly into separable components (shelf bracket, support rail, shelf) connected by removable tab-slot joints. This segmentation allows individual parts to be replaced independently while maintaining overall structural stability. The modular design enables easy repair by replacing only the defective component rather than the entire assembly.
4Stability of the object's composition
If shelf assemblies are permanently assembled before use, then the structural stability is improved, but the loss of time deteriorates due to difficulties in transporting
Solution Approach 1:
The patent divides the shelf assembly into separate modular components that can be transported independently and assembled on-site. The shelf bracket, support rail, and shelf are separate parts that can be packaged more efficiently and transported separately, reducing transport time and logistics complexity while maintaining structural stability through the tab-slot connection system.
5Ease of manufacture
If double-sided structural tapes are used to assemble shelf assemblies, then the ease of manufacture is improved, but the reliability deteriorates as effectiveness is vulnerable to environmental changes
Solution Approach 1:
The patent replaces chemical bonding (structural tapes vulnerable to temperature and humidity) with a mechanical tab-slot insertion system. The mechanical connection provides reliable attachment that is not affected by environmental conditions such as temperature changes or humidity, while still being easy to assemble without specialized tools.
6Ease of manufacture
If fasteners are used to assemble shelf assemblies, then the ease of manufacture is improved, but the loss of time deteriorates due to requiring proper tools and equipment and extended assembly time
Solution Approach 1:
The patent replaces fastener-based assembly (requiring tools and extended time) with a simple tab-slot insertion system. The tab on the shelf bracket slides into the slot on the support rail, creating a secure connection through simple insertion without requiring fasteners, tools, or extended assembly time. This maintains ease of manufacture while dramatically reducing assembly time.
Data Source
AI summary
The shelf assembly comprises a shelf having top and bottom surfaces. The shelf includes at least one support rail that is secured to the bottom surface of the shelf and runs parallel to one side of said shelf. The support rail also has a tab slot, which is located in a side and adjacent to an end thereof. The shelf assembly also comprises a shelf bracket having a lip and a skirt that extends perpendicular from said lip. The lip and the skirt extend along a length of the shelf bracket, and the shelf bracket has a first tab, which is located in the lip and configured to be removably received in the tab slot. The shelf bracket also has anchoring tabs that are located on an end thereof and configured to be received in a shelving support frame.