Trackless Shelf Pusher Mechanism for Debris-Resistant Product Flow
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Solution Overview
Problem
Existing merchandising systems face issues with debris and sticky substances obstructing the movement of products on inclined trays and pusher systems, leading to product tipping and binding, which hinders effective display and accessibility.
Innovation Solution
A trackless pusher mechanism that uses a coiled spring and pusher paddle to gently push products forward, eliminating the need for tracks and guides, and features a surface with apertures and ribs to allow liquids and dirt to pass through, preventing obstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a track and guide system is used for the pusher mechanism, then the pusher can be guided along the shelf, but the track becomes obstructed with dirt or sticky materials that hinder proper operation
Solution Approach 1:
The patent removes the track and guide system from the pusher mechanism, extracting the source of obstruction problems. The pusher operates without contacting any track or guide structure, eliminating the accumulation zone for dirt and sticky materials that previously hindered operation.
Solution Approach 2:
The pusher floor is designed with a porous structure containing numerous apertures that allow liquids and debris to pass through rather than accumulate on the surface. This prevents the buildup of obstructive materials while maintaining the pusher's structural integrity and pushing function.
2Productivity
If a plastic surface with low coefficient of friction is used on inclined trays, then product can easily slide forward, but the surface becomes obstructed with debris or sticky substances that inhibit sliding
Solution Approach 1:
The pusher floor incorporates a porous structure with numerous apertures distributed across its surface. This allows liquids and debris to pass through the material rather than accumulating on top, maintaining sliding efficiency while preventing obstruction by harmful substances.
Solution Approach 2:
The pusher floor surface is segmented into multiple apertures rather than a solid continuous surface. This segmentation allows different regions of the surface to serve different functions - solid areas for pushing and aperture areas for debris drainage - resolving the contradiction between sliding efficiency and debris resistance.
3Productivity
If known pusher paddles are used, then product can be pushed forward, but the paddles may tip or bend backwards causing binding of the pusher mechanism
Solution Approach 1:
The pusher mechanism incorporates a spring-loaded design that allows dynamic adjustment of the pusher's position and angle. The spring enables the pusher to flex and adapt to varying product weights and positions, preventing binding while maintaining reliable pushing function across different operating conditions.
Solution Approach 2:
The pusher mechanism uses spring force to dynamically adjust parameters such as pusher angle and contact force based on the load. This parameter adjustment prevents the paddle from tipping or bending backwards by maintaining optimal geometric relationships between the pusher, product, and shelf throughout operation.
4Object-affected harmful factors
If a trackless pusher system is used, then debris accumulation is prevented, but the pusher mechanism needs to maintain stability and alignment without track guidance
Solution Approach 1:
The pusher mechanism uses the weight and position of the product itself to maintain alignment and stability. The spring-loaded design allows the pusher to self-adjust its position based on the product it is pushing, eliminating the need for external track guidance while maintaining proper alignment through product-interaction-based feedback.
Solution Approach 2:
The spring mechanism dynamically adjusts the pusher's geometric parameters (angle, position, contact force) based on operating conditions. This parameter adaptation maintains stability and alignment without requiring fixed track guidance, resolving the contradiction between trackless operation and alignment control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures products are displayed efficiently and remain accessible by preventing tipping and binding, maintaining product flow and visibility without the issues of debris accumulation.
Implementation Method 1
The pusher mechanism includes a coiled spring and a pusher paddle. The coiled spring is configured to bias the pusher paddle in a forward direction.
Implementation Method 2
features a surface with apertures and ribs to allow liquids and dirt to pass through, preventing obstruction
Data Source
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AI summary
A product management display system for merchandising product on a shelf includes at least one tray having a front rounded portion and defining a plurality of apertures and having two sides. A lip may extend upward from the front rounded portion of the at least one tray. A front shelf may extend forward from the lip. The at least one tray may include one divider extending upwardly from each of the two sides and a front wall. The front wall may include a top wall, a bottom wall, and two side legs. The front wall, bottom wall, and two side legs may form a wall aperture and the front wall may include a plurality of projections configured to engage with the plurality of apertures on the tray.