Spring-Loaded Paper Roll Holder for Easy Cleaning and Roll Change
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Solution Overview
Problem
Existing paper roll holders, such as toilet paper and paper towel holders, are inefficient in allowing easy replacement of rolls and often accumulate particle matter, requiring complex mechanisms and visible support structures, which complicates cleaning and aesthetics.
Innovation Solution
A paper roll holder design featuring spring-loaded pivotal pegs with machined tapered open cavities/channel grooves in side plates, allowing easy roll exchange and cleaning, eliminating the need for compressible support tubes and visible hinges, with a base plate for mounting and side plates that pivot upwardly to facilitate roll replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional pivotal arms with closed cavities are used, then the mechanism is enclosed and protected, but particle matter accumulates in the basins and cleaning becomes difficult
Solution Approach 1:
The patent removes the closed basin structure from the pivotal arm mechanism, extracting the harmful enclosed space where particle matter accumulates. The open pivotal cavity design eliminates the basin that traps debris, allowing particles to be easily washed away while the pivotal arm remains functional.
Solution Approach 2:
The pivotal arm is designed with an open cavity structure rather than a solid enclosed form. This porous-like open architecture allows fluid (water) to pass through and clean the mechanism, preventing particle accumulation while maintaining structural integrity.
2Reliability
If complex mechanisms with visible hinges and support structures are used, then the holder is structurally sound, but aesthetics are compromised and cleaning is complicated
Solution Approach 1:
The patent merges the hinge mechanism and support structure into a single integrated pivotal arm assembly. The torsion spring is embedded within the pivotal arm itself, eliminating the need for separate visible hinges and external support structures, achieving both aesthetic simplicity and structural reliability.
Solution Approach 2:
The torsion spring is nested within the pivotal arm structure, with the spring housed inside the arm's body. This nesting conceals the mechanical components, providing structural support and hinge functionality while maintaining a clean, aesthetic appearance.
3Ease of operation
If compressible support tubes are used, then paper rolls can be supported, but the mechanism becomes complex and requires visible support structures
Solution Approach 1:
The patent removes the compressible support tube entirely, extracting this complex mechanical element from the design. The pivotal arm with torsion spring provides roll support through a simpler mechanism that eliminates the need for compressible tubes and their associated complexity.
Solution Approach 2:
The patent replaces the compressible support tube mechanism with a torsion spring-based pivotal arm system. This substitution simplifies the mechanics by using elastic deformation of the spring rather than compressible tube expansion, reducing overall mechanism complexity.
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 quick and sanitary one-handed roll replacement, enhances aesthetics, and prevents particle buildup, making the holder easy to use and maintain, suitable for various materials and user demographics.
Implementation Method 1
each comprising a slot for mounting a pivoting peg therein... the pivoting peg further comprising a sloped, elongated groove formed in a top surface of the peg to allow the mounting of a torsion spring therein
Data Source
AI summary
A paper roll holder formed of a base plate for mounting to a vertical or horizontal surface; two-spaced apart side plates mounted perpendicularly to the base plate; each comprising a slot for mounting a pivoting peg therein and two mounting holes penetrating by a dowel pin; the pivoting peg further comprising a sloped, elongated groove formed in a top surface of the peg to allow the mounting of a torsion spring therein, and a mounting hole in the end with the deep groove, and a dowel pin penetration the two mounting holes in the side plate, the mounting in the pivoting peg and an aperture through a center of the torsion spring.