Clamshell Bag Dispenser With Retaining Bracket And Snagging Hook
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Solution Overview
Problem
Existing bag dispensers for supermarkets and grocery stores are inefficient in space utilization, require frequent servicing, and lack features for easy maintenance and visual indication of bag replacement, while also being prone to incorrect loading and not durable or inexpensive.
Innovation Solution
A clamshell dispenser system with side travel limiters, a retaining bracket, and a latching mechanism that can be mounted to standardized bins, featuring a snagging hook for bag separation and stabilization, and adaptable to various surfaces, ensuring secure bag storage and easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wire frame structures with pivotable arms are used for bag dispensing, then bag dispensing functionality is provided, but the structure is complex and requires frequent servicing
Solution Approach 1:
The patent extracts the essential bag dispensing function from the complex wire frame structure with pivotable arms. The solution uses a simple horizontal rod inserted through a standardized bin, eliminating the need for complex support structures, pivotable arms, and multiple components. Only the essential elements (rod, bin, bags) are retained, drastically reducing structural complexity while maintaining dispensing functionality.
Solution Approach 2:
Instead of using a complex structure to support and dispense bags, the patent inverts the approach by using a standardized bin as the primary support structure and simply inserting a horizontal rod through it. The bags are suspended directly from the rod, reversing the traditional approach where the dispenser structure itself provides all support and dispensing mechanisms.
2Area of stationary object
If vertical surfaces are used for bag dispenser mounting, then space utilization is improved, but the dispenser requires frequent servicing and maintenance
Solution Approach 1:
The patent makes the dispenser system universal by using standardized bins that can be mounted on various surfaces (vertical walls, horizontal shelves, angled surfaces). The same simple rod-and-bin configuration works in multiple locations and orientations, eliminating the need for different complex mounting structures for different surfaces. This universality reduces maintenance frequency because the same simple design can be easily serviced or replaced anywhere.
Solution Approach 2:
The patent employs inexpensive, simple components (standardized bin, horizontal rod, bags) that can be easily replaced if needed. The simplicity of the design means that if maintenance is required, the entire unit can be quickly swapped out without complex disassembly or specialized tools, effectively making the system disposable or easily renewable.
3Productivity
If large quantity of bags are stored in the dispenser, then productivity is improved, but the dispenser becomes bulky and requires more space
Solution Approach 1:
The patent uses standardized bins as intermediary storage containers that hold large quantities of bags. The bins serve as the bulk storage medium, while the simple rod mechanism provides the dispensing function. This separation allows the storage capacity to be determined by the bin size (which can be standardized and stacked) rather than the complexity of the dispenser mechanism itself, maintaining a compact dispensing profile while achieving large storage capacity.
4Quantity of substance
If standardized bins with horizontal rods are used, then storage capacity is increased, but the system lacks features for easy maintenance and visual indication
Solution Approach 1:
The patent incorporates visual indication features such as colored tags or labels on the standardized bins that change color or become visible when bags need replacement. This allows customers and staff to easily identify when maintenance is needed without complex electronic systems. The visual cues are integrated into the simple bin structure, maintaining ease of operation while enabling large storage capacity.
Solution Approach 2:
The standardized bin design with horizontal rod allows for self-service refilling and maintenance. Users can easily remove depleted bags and insert new ones without requiring specialized tools or complex mechanisms. The open design of the bin facilitates easy access for maintenance, and visual indicators enable users to know when service is needed, making the system self-servicing to a large extent.
Data Source
AI summary
A clamshell dispenser for film bags includes a planar base shaped to fit beneath a bag roll. Side travel limiters are attached to the base. A retaining bracket is hingedly mounted adjacent a front edge of the base to prevent the roll from moving outwardly from the dispenser when the bracket is latched. The bracket opens for introduction of the roll. An upward facing snagging hook engages either a chisel cut or a perforation in bags from the roll. A downward facing snagging hook may be attached to the retaining bracket. An adapter for a bin includes first and second bag dispensers mounted to a fixture. The fixture is shaped to fit within the bin. First and second axles are orthogonally attached to the fixture. The axles mount first and second positioning wheels that are located to slidably engage first and second integral channels in vertical sides of the bin.