Box for dispensing pre-cut wiping material which can be unwound in a strip, and use of such a dispensing box
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Solution Overview
Problem
Existing dispensing devices for wiping materials, such as hand towels and toilet paper, are complex and costly to manufacture, and struggle to efficiently cut resistant materials like non-woven fabrics.
Innovation Solution
A dispensing box with a simple design comprising a body, a hinged cover, and a roller with sections of different diameters that create a speed differential to tear pre-cut strips at a designated line, allowing for efficient cutting of various materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional dispensing devices are used, then wiping material can be dispensed, but the device complexity and manufacturing cost increase
Solution Approach 1:
The roller integrates multiple functions: it guides the strip, creates the cutting action through speed differential, and eliminates the need for separate cutting mechanisms. The cover serves both as a closure and as a pressing element that applies force to the strip against the roller surface, enabling the cutting function without additional components.
Solution Approach 2:
The roller with varying diameter serves multiple purposes: it guides the strip through the device, creates the speed differential necessary for cutting, and works in conjunction with the cover to apply pressing force. This multi-functional design eliminates the need for separate guiding, pressing, and cutting components.
2Productivity
If conventional cutting mechanisms are used, then material can be cut, but resistant materials like non-woven fabrics cannot be efficiently cut
Solution Approach 1:
The roller's diameter varies along its length, creating different linear speeds at different positions when the roller rotates. This speed differential parameter change enables the cutting action by creating relative motion between the strip and the roller surface, allowing efficient cutting of resistant materials without complex mechanical cutters.
3Ease of manufacture
If a simple device design is used, then manufacturing cost is reduced, but the ability to cut all types of pre-cut materials is compromised
Solution Approach 1:
The roller has non-uniform diameter with different sections (first diameter and second diameter) that create localized speed differentials. This local variation in geometry creates the necessary cutting action at specific positions along the roller, enabling reliable cutting of resistant materials while maintaining overall device simplicity.
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 solution results in a cost-effective, reliable, and versatile device capable of cutting all types of pre-cut materials, including resistant non-woven fabrics, with a reduced number of parts and lower manufacturing costs.
Implementation Method 1
The sections of different diameters are configured to drive the strip with a speed differential, so as to tear the strip at a pre-cut line
Data Source
AI summary
A box for dispensing pre-cut wiping material. The box includes: a body delimiting a space for receiving the wiping material, which can be unwound in a strip on a front side of the body; a lid hinged on a rear side of the body; and a roller which is pivotably mounted on the front side of the body, which includes at least two sections of different diameters, including a first diameter and a second diameter smaller than the first diameter, and which is provided to support the strip with the lid mounted thereon. The sections of different diameters are configured to pull the strip with a speed differential, so as to tear the strip at a pre-cut line, when a user pulls on the strip from the front side of the body.