Retail device

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Solution Overview

Problem

Current retail hook devices fail to effectively display multiple items of the same product by not providing a consistent force to push items forward, leading to bunching at the front of the rail, making it difficult to mount and remove items without applying excessive force.

Innovation Solution

A retail display device with a carriage system comprising hingedly attached arms and a gathering device, such as a flexible cord or spring mechanism, that adjusts to maintain a consistent force to push items forward, ensuring the frontmost item is always displayed at the end of the rail, allowing easy loading and unloading.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If spring devices are used to urge product forward, then items are pushed toward the front of the rail, but the force is either too small to be effective or too great causing product to bunch at the front

Engineering Contradiction:
Improveforce to push product forwardVSAvoidease of mounting and removing items
Core Design Contradiction:
ForceVSEase of operation

Solution Approach 1:

The spring mechanism is designed to be compressible, allowing it to dynamically adjust its force output. When items are loaded onto the rail, the spring compresses and maintains a consistent pushing force without causing bunching. The dynamic compression capability allows the spring to adapt to varying loads while maintaining effective but controlled force application.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring's force parameter is optimized to provide consistent pressure across different operating conditions. By selecting appropriate spring constants and pre-loads, the system maintains a stable pushing force that is sufficient to move items forward but not so great as to cause bunching, resolving the force magnitude problem.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If constant spring force is applied to urge product forward, then items are continuously pushed, but mounting and removing items requires excessive force

Engineering Contradiction:
Improvecontinuous item presentationVSAvoidforce required to load/unload items
Core Design Contradiction:
ProductivityVSForce

Solution Approach 1:

The carriage system with movable arms provides dynamic positioning capability. When items need to be loaded or removed, the arms can move independently to create space and reduce resistance, allowing easy item manipulation despite the constant spring force acting on the rail.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The carriage acts as an intermediary mechanism between the spring force and the items. It translates the constant spring force into controlled item movement while providing a mechanical interface that facilitates easy loading and unloading through its movable arm structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If spring force is increased to effectively push items forward, then item presentation is improved, but item bunching occurs at the front of the rail

Engineering Contradiction:
Improveitem presentation qualityVSAvoiditem distribution along the rail
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The compressible spring provides a self-regulating mechanism that prevents item bunching. As items accumulate at the front, the spring compresses further, naturally reducing its force output to maintain a consistent but controlled pushing action, thereby preserving stable item distribution.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring's compression parameter changes in response to item accumulation, automatically adjusting the force application to prevent bunching while maintaining effective item presentation at the rail front.

Inventive Principle:
Principle #35Parameter changes

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 device ensures a consistent and efficient display of items by maintaining a constant force to push items forward, preventing bunching and simplifying the loading and unloading process, thereby improving product presentation and reducing operational effort.

Implementation Method 1

the arms are adapted to be drawn together towards a respectively parallel orientation by a gathering device extending between the respective arms

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the pair of arms biased to pivot apart

Methodology Applied
Scientific EffectSpring mechanism: Spring

Data Source

PatentUS11178980B2Retail device
Publication Date: 2021.11.23 PONGRAC IVAN
  • US11178980B2 patent drawing
  • US11178980B2 patent drawing
  • US11178980B2 patent drawing

AI summary

A retail display device (10) comprises a carriage (40) mounted to a retail hook rail (20) adapted to be cantileveredly supported by a support structure (2). The carriage (40) comprises a pair of hingedly attached arms (41, 42), including a first arm (41) adapted to slide along the hook rail (20) and a second arm 42 adapted to reciprocate along the hook rail (20). The pair of arms (41, 42) are biased to pivot apart, such that the first arm (41) tends to assume an inclined position relative to the hook rail (20) and the first arm (41) is adapted to be drawn towards an upper portion (47) of the second arm by a gathering device (60) extending between the respective first and second arms (41, 42). The gathering device is flexible and extends forward beyond the second arm (42) to a lever (88) mounted to the front of the hook (20).