Trackless Shelf Pusher Mechanism With Self-Adjusting Dividers
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Solution Overview
Problem
Existing merchandising systems face issues with debris and sticky substances obstructing inclined trays and pusher systems, causing products to tip over or fail to move forward effectively, and pusher paddles may bend or tip, hindering the merchandising process.
Innovation Solution
A trackless pusher mechanism with a pusher paddle and a flat coiled spring or biasing element that extends across the floor or dividers, preventing the paddle from tipping and ensuring proper product movement, combined with self-adjusting dividers that allow close product orientation and easy movement along the tray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a track-mounted pusher system is used, then the pusher mechanism can guide and push product forward, but the track becomes obstructed with dirt or sticky materials over time, hindering proper operation
Solution Approach 1:
The patent removes the track component from the pusher system entirely. The pusher mechanism is designed to operate without a track, eliminating the surface that accumulates dirt and sticky materials. This extraction of the problematic track element resolves the obstruction issue while maintaining the pusher's ability to guide and move products forward.
Solution Approach 2:
The patent introduces a floor extension that acts as an intermediary between the pusher paddle and the tray bottom. This floor extension provides a clean, debris-resistant surface for the pusher to operate on, mediating the interaction between the pusher mechanism and the tray while preventing direct contact with obstructing materials.
2Productivity
If a traditional pusher paddle is used, then it can push product forward, but the paddle may tip or bend backwards causing binding in the track
Solution Approach 1:
The patent extends the pusher mechanism in the vertical dimension by adding a floor extension that reaches down toward the tray bottom. This dimensional extension provides additional support underneath the pusher paddle, preventing it from tipping or bending backwards during operation, thereby eliminating binding issues while maintaining pushing effectiveness.
Solution Approach 2:
The floor extension acts as a preemptive support structure that prevents the pusher paddle from tipping or bending before such failures can occur. By providing this underlying support in advance, the system cushions against potential mechanical failures and ensures reliable operation.
3Ease of operation
If inclined trays with low friction surfaces are used, then product can easily slide to the front, but debris or sticky substances obstruct the surface causing products to tip over
Solution Approach 1:
The patent removes the problematic low-friction surface from the tray and replaces it with a pusher-based mechanism. By extracting the inclined sliding surface that accumulates debris, the system eliminates the obstruction problem while maintaining product movement through active pushing rather than passive sliding.
Solution Approach 2:
The patent replaces the passive mechanical sliding system with an active pusher-based mechanical system. Instead of relying on gravity and low-friction surfaces that get obstructed, the system uses a controlled pusher mechanism that actively moves products forward, substituting one mechanical approach for another that is less susceptible to debris obstruction.
4Manufacturing precision
If dividers are used to separate product rows, then product orientation is improved, but the dividers may bind or get stuck preventing close product orientation
Solution Approach 1:
The patent designs the divider system to be dynamic rather than completely rigid. The dividers can adjust their position slightly to accommodate product movement and variations in product size, allowing them to maintain precise orientation while avoiding binding or getting stuck during operation.
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
The trackless pusher mechanism ensures continuous and efficient product movement to the front of the shelf, reducing obstruction issues and maintaining product alignment, while the self-adjusting dividers maximize horizontal product placement without binding or getting stuck.
Implementation Method 1
A flat coiled spring or other biasing element can be operatively connected behind the pusher paddle and extend across the floor of the pusher mechanism
Implementation Method 2
inclined trays or floors that through gravity will cause the product to move toward the front of the shelf
Data Source
AI summary
A product management display system for merchandising product on a shelf includes using a trackless pusher mechanism that travels along a surface on which product is placed. A plurality of thin dividers separate the product into rows. The dividers may be formed separately and attached and secured by being inserted into a plurality of grooves arranged along the lower surface and the forward and rear support posts of the product dispensing tray. The dividers are configured to self-adjust by laterally shifting within the grooves when the product is moved forward by the pusher to being loaded by an operator to allow the product to be positioned in a tight fitting manner to maximize the amount of product that can be accommodated horizontally across the tray. In addition, the dividers may have a bottom wall spaced from the surface with a support column that is inserted into an elongated pocket to provide the structural support for the divider.