Web Material Dispenser With Recessed Track Cutter
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Solution Overview
Problem
Existing dispensers for web materials, such as plastic film, often have exposed serrated edges that can cause accidents and are inconvenient for use, and track-guided cutting assemblies can weaken the container and complicate packing and stacking.
Innovation Solution
A container design with a track positioned on the exterior for web material to lay across, featuring a cutter that slides along the track, and folding sides to create a recess for the track, allowing for compact shipping and easy use without the track or cutter projecting beyond the container's profile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an exposed serrated edge is used for cutting web material, then cutting function is provided, but safety hazards and inconvenience occur
Solution Approach 1:
The cutting function is extracted from an exposed serrated edge and integrated into a track-guided cutter assembly. The cutter is confined within a track structure that guides its movement, eliminating the need for an exposed sharp edge while maintaining the cutting capability through a controlled sliding motion along the track.
Solution Approach 2:
A track structure serves as an intermediary between the user and the cutting function. Instead of directly exposing a serrated edge, the track mediates the cutting action by guiding a cutter along a predetermined path, providing safety while enabling the cutting operation through the track's constrained movement mechanism.
2Reliability
If a track-guided cutting assembly is added to the container, then cutting safety and effectiveness are improved, but container structural integrity is weakened
Solution Approach 1:
The track structure is merged with the container wall itself rather than being a separate attached component. The track is formed as an integral part of the container structure, eliminating the need for additional reinforcing members and maintaining structural integrity while providing the guided cutting function.
Solution Approach 2:
The container wall serves multiple functions: it provides structural support and simultaneously forms the track for guiding the cutter. This multi-functionality eliminates the need for separate track components that would weaken the container, as the wall itself is designed to accommodate both structural and cutting guide roles.
3Ease of operation
If the track and cutter project above the container side, then cutting accessibility is improved, but packing and stacking become complicated
Solution Approach 1:
The track and cutter are positioned within the plane of the container side rather than projecting outward. By utilizing the container's own dimensional space and forming the track within the side wall structure, the design achieves cutting accessibility without adding external projections that would complicate packing and stacking operations.
Solution Approach 2:
The cutter and track assembly is nested within the container's profile. The track is formed within the container side structure, and the cutter operates within this nested configuration, allowing the entire assembly to fit within the container's external dimensions without requiring additional protective enclosures or complicating packaging.
Data Source
AI summary
A container for dispensing selected portions of a web material and a method of making such a container. The container is arranged to contain the web material and has an opening through which the web material can be led out of the container. A track is positioned such that web material led out of the container through the opening can be laid across the track. A cutter is capable of sliding along the track and of cutting web material laid across the track. At least in a packaged configuration for shipping, the track and cutter do not extend beyond an outline of the container.