Bag dispenser
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Solution Overview
Problem
Existing bag dispensers in grocery stores are typically customized for specific brands of bags and require replacement or modification when the brand changes, limiting their adaptability to different manufacturers and types of bags.
Innovation Solution
A bag dispenser designed to accommodate various bag brands and types, featuring a roller for different core diameters, adjustable braking arrangements, an interchangeable tongue structure, and a pivoting dispenser support for flexible bag handling and accessory mounting, allowing use with multiple bag manufacturers and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bag dispensers are customized for a particular brand or manufacturer, then they can provide reliable and consistent bag dispensing performance, but they cannot accommodate different brands or types of bags when the manufacturer changes
Solution Approach 1:
The bag dispenser is designed with universal components including an adjustable roller that accommodates different core diameters, interchangeable tongue structures for different bag types, and adjustable braking arrangements. This allows a single dispenser unit to reliably dispense bags from multiple manufacturers without requiring replacement or major modification.
Solution Approach 2:
The dispenser incorporates adjustable and interchangeable components rather than fixed structures. The roller position can be adjusted, the tongue structure can be replaced, and the braking arrangement can be reconfigured. This dynamic design enables the same dispenser to adapt to different bag brands while maintaining reliable dispensing performance.
2Stability of the object's composition
If bag dispensers are permanently fixed in stores, then they provide stable and consistent operation, but they require replacement or modification when the bag brand changes
Solution Approach 1:
The dispenser is divided into modular components including the frame, roller assembly, tongue structure, and braking arrangement. These segmented components can be independently adjusted or replaced, allowing the dispenser to maintain stable operation while enabling easy reconfiguration when bag brands change.
Solution Approach 2:
The dispenser allows changes in key parameters such as roller position, tongue structure type, and braking force to accommodate different bag brands. These parameter adjustments enable the dispenser to maintain operational stability across different bag types without requiring complete replacement.
3Manufacturing precision
If the roller is designed for a specific core diameter, then it provides precise bag alignment and dispensing, but it cannot accommodate bag rolls with different core diameters
Solution Approach 1:
The roller assembly incorporates adjustable positioning mechanisms that allow the roller to be moved to different positions along the axis. This dynamic adjustment capability enables the roller to maintain precise alignment with bag rolls of different core diameters, preserving bag alignment precision across various bag types.
4Reliability
If the braking arrangement is fixed for a specific bag type, then it provides consistent frictional force for tearing, but it cannot effectively handle different bag materials or thicknesses
Solution Approach 1:
The braking arrangement allows adjustment of the frictional force applied to the bag. By changing the braking parameter (frictional force), the dispenser can reliably facilitate tearing for different bag materials and thicknesses while maintaining consistent tear quality across various bag types.
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
Enables efficient and adaptable use with diverse bag brands and types, preventing freewheeling and ensuring smooth bag dispensing, while maintaining a neat store appearance through self-centering pivoting.
Implementation Method 1
A brake plate is configured to capture the leading bag against the frame for providing frictional force on the leading bag to limit sliding thereof
Implementation Method 2
The roller including a friction surface configured to provide frictional force to a core of the bag roll to prevent freewheeling of the bag roll
Data Source
AI summary
A bag dispenser includes a frame with a roller portion for receiving a bag roll defined by a plurality of bags attached to a leading bag to be dispensed, the roller defining a longitudinal axis. A brake plate is configured to capture the leading bag against the frame for providing frictional force on the leading bag to limit sliding thereof, the brake plate pivotally attached to the frame via a pivot arm, the brake plate pivotable with respect to the frame between a non-pivoted friction-application position and a pivoted bag roll-installment position, the pivot arm configured to pivot with respect to the frame along a pivot plane generally perpendicular to the longitudinal axis.