Snap-Fit Roller Carrier Assembly for Shelf Article Feeders
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Solution Overview
Problem
Existing article feed devices are complex to assemble, require multiple components, and are costly to produce, limiting their ease of configuration and application versatility.
Innovation Solution
The article feed device features a roller carrier with snap-fit sections and profile rails for easy assembly without additional fixation means, using polymer and aluminum materials, allowing for simple configuration and low-cost production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fixation methods (screws, deformation of lugs) are used to secure roller carriers to profile rails, then reliable fixation is achieved, but assembly complexity and production cost increase
Solution Approach 1:
The roller carrier is designed with integrated fixation means that automatically engage with the profile rails during assembly. The fixation means includes engagement elements that self-lock into corresponding features of the profile rails without requiring external screws, adhesives, or deformation operations, thereby achieving reliable fixation while simplifying assembly to a single insertion motion
Solution Approach 2:
The roller carrier integrates multiple functions into a single component: it supports the rollers, provides structural rigidity, and incorporates built-in fixation means for securing to the profile rails. This merging eliminates the need for separate fixation components and operations, reducing assembly complexity while maintaining reliable attachment
2Reliability
If multiple separate components (roller carrier, end caps, fixation means) are used, then reliable fixation is achieved, but the number of components and production cost increase
Solution Approach 1:
The roller carrier integrates multiple functions into a single component: it supports the rollers, provides structural rigidity, and incorporates built-in fixation means for securing to the profile rails. This merging eliminates the need for separate fixation components and operations, reducing assembly complexity while maintaining reliable attachment
Solution Approach 2:
The roller carrier serves multiple purposes simultaneously: it acts as a support structure for the rollers, provides mechanical strength, and functions as a fixation device through its integrated engagement means that interface with the profile rails. This multi-functionality reduces the total component count while ensuring reliable installation
Data Source
AI summary
An article feed device for feeding articles along a feeding direction towards a front edge of a shelf being provided with the article feed device. A least one roller carrier has a longitudinal extension which is parallel to the feeding direction and comprises a number of roller receiving seats for rotationally receiving the rollers. The roller carrier is arranged to be longitudinally inserted in the profile rails for fixation of the rollers. The roller carrier comprises end stops for preventing relative longitudinal displacement between the roller carrier and the first profile rails when mounted. The roller carrier is divided into at least two section arranged one after the other in the longitudinal direction. Each section is arranged to be inserted from a respective longitudinal end of the first profile rails and comprising cooperating snap engagement means for mutual engagement of one section to the other.