Trackless Pusher Mechanism With Self-Adjusting Shelf Dividers
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Solution Overview
Problem
Existing merchandising systems face issues with product visibility and accessibility due to obstruction by debris or sticky substances on inclined shelves and pusher mechanisms, which hinder the proper movement of products to the front, leading to tipping or binding problems.
Innovation Solution
A trackless pusher mechanism with a pusher paddle and a flat coiled spring or biasing element that extends across the floor or divider, 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
1Productivity
If a track-mounted pusher system is used to push product forward, then product movement is achieved, but the track becomes obstructed with dirt or sticky materials hindering proper operation
Solution Approach 1:
The patent removes the track component from the pusher system entirely. The trackless pusher mechanism operates without a guiding track, eliminating the surface that accumulates dirt and sticky materials. This extraction of the problematic track element resolves the contradiction by maintaining product movement capability while eliminating the source of operational hindrance.
Solution Approach 2:
The pusher mechanism is divided into separate functional components: the pusher paddle for product contact, the spring mechanism for force generation, and the floor for structural support. This segmentation allows each component to be optimized independently, with the paddle designed to function effectively without track guidance, thereby eliminating track-related obstructions while maintaining pushing functionality.
2Productivity
If a known pusher paddle is used, then product is pushed forward, but the paddle may tip or bend backwards causing binding of the mechanism
Solution Approach 1:
The patent incorporates a floor that extends forward of the pusher paddle, creating a preliminary structural support before the paddle makes contact with product. This preliminary action prevents the paddle from tipping or bending backwards by providing a stable base and proper mounting structure, ensuring the paddle maintains its forward-facing orientation during operation.
Solution Approach 2:
The spring mechanism is designed with proper mounting to the floor structure, providing beforehand cushioning and support to prevent excessive backward movement or tipping of the paddle. The spring force is controlled to push forward without causing the paddle to bind or tip, maintaining stable operation throughout the product pushing cycle.
3Ease of operation
If an inclined shelf with low friction material is used, then product slides easily to the front, but debris or sticky substances obstruct the surface inhibiting proper sliding
Solution Approach 1:
The patent eliminates the inclined shelf surface that is prone to obstruction by debris and sticky substances. By removing the track and using a trackless pusher mechanism, the system no longer relies on a continuous inclined surface for product movement, thereby eliminating the surface that accumulates harmful substances and loses functionality.
Solution Approach 2:
The pusher paddle acts as an intermediary between the spring mechanism and the product, transferring the pushing force directly to the product without requiring a clear inclined surface. This intermediary approach allows product movement even when the shelf surface is obstructed, as the pusher provides direct contact force rather than relying on surface friction or gravity alone.
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 product movement to the front of the shelf without obstruction, maintaining product visibility and accessibility while preventing tipping and binding, even with varying product sizes and shapes.
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
the pusher paddle is prevented from tipping or bending backwards during operation
Implementation Method 3
it is known that retail and wholesale stores... require a large amount of shelving both to store product and to display the product to consumers
Data Source
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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.