Bakery Tray Rear Wall Rib Segmentation and Corner Pad Wear Strategy
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Solution Overview
Problem
Existing bakery trays lack sufficient reinforcement and wear protection, leading to reduced durability and efficiency in stacking and handling, particularly when subjected to mechanical stress during orientation changes and conveyor use.
Innovation Solution
The bakery tray design features a rear wall with an increased concentration of ribs for enhanced strength, drag rails with corner pads that extend below the base for improved wear resistance, and a configuration allowing for even force distribution during handling, with corner pads designed to wear before drag rails to extend tray life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the tray structure is simplified for ease of manufacture, then manufacturing cost decreases, but strength and durability deteriorate
Solution Approach 1:
The rear wall is segmented into multiple ribs that extend downward from the uppermost edge to the bottom surface of the base. This segmentation distributes structural stress across multiple elements while maintaining the overall simplicity of the injection-molded tray design, resolving the contradiction between ease of manufacture and strength.
Solution Approach 2:
The tray utilizes the inherent properties of molded plastic material combined with geometric reinforcement through ribs. The composite structure of the molded base and integrated rear wall ribs provides enhanced strength without requiring additional manufacturing steps or complex assembly, maintaining ease of manufacture while improving durability.
2Ease of operation
If drag rails are made prominent for handling, then handling efficiency improves, but wear resistance deteriorates
Solution Approach 1:
Corner pads are positioned at the corners of the base to contact the conveyor surface first during dragging operations. This beforehand cushioning protects the drag rails from direct contact and wear, allowing the drag rails to maintain their prominent handling features while being protected from degradation by the sacrificial corner pads.
3Duration of action of stationary object
If corner pads extend further than drag rails for wear protection, then durability improves, but device complexity increases
Solution Approach 1:
The corner pads and drag rails are merged into a single integrated molded structure. This combining of elements achieves wear protection through the corner pads extending further than the drag rails, while avoiding the complexity of separate components and assembly steps. The unified structure maintains simplicity while providing enhanced durability.
Data Source
AI summary
A bakery tray includes a base. A front wall extends upward from a front edge of the base. Side walls extend upward from side edges of the base. A rear wall extends upward from a rear edge of the base. The rear wall includes an inner panel portion and an outer lip portion that protrudes outward and then downward from an uppermost edge of the inner panel portion. A plurality of ribs connect the inner panel portion to the outer lip portion. In one feature, the plurality of ribs may include an increased concentration of the ribs in the center of the tray.