Web material dispenser, back wall for a web material dispenser and method for securing a web material dispenser to a supporting surface
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Solution Overview
Problem
Existing paper roll dispensers face issues with alignment and dispensing efficiency when mounted on uneven surfaces, leading to unsatisfactory paper delivery due to compromised alignment of support arms.
Innovation Solution
A back wall for web material dispensers featuring first and second support arms with a fastening portion and an isolating recess that allows the support arms to be tilted and isolated from the fastening constraints, ensuring alignment and stability even on uneven surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the back wall is rigidly mounted to the supporting surface, then the mounting is stable and secure, but the support arms cannot adjust to uneven surfaces resulting in misalignment
Solution Approach 1:
The back wall is divided into separate functional portions: a fastening portion for mounting to the supporting surface and support arm portions for holding the web material support arms. This segmentation allows each portion to perform its specific function independently, with the fastening portion providing stable mounting and the support arm portions maintaining proper alignment even on uneven surfaces.
Solution Approach 2:
The isolating recess extracts or separates the support arm portion from the fastening portion, creating physical and functional isolation. This allows the support arm portion to be positioned and aligned independently from the mounting portion, enabling the support arms to maintain precise alignment regardless of surface irregularities at the mounting location.
2Strength
If the support arms are rigidly connected to the fastening portion, then the structure is strong and stable, but the support arms cannot tilt to accommodate uneven mounting surfaces
Solution Approach 1:
The back wall is segmented into a fastening portion and a support arm portion that are spatially separated by the isolating recess. This segmentation allows the support arm portion to tilt and adjust independently to accommodate uneven mounting surfaces while the fastening portion remains securely mounted, maintaining overall structural strength.
Solution Approach 2:
The support arm portion is designed with the capability to tilt relative to the fastening portion, introducing dynamic adjustability to an otherwise rigid structure. This allows the support arms to adapt to uneven surfaces by tilting to the appropriate angle while maintaining structural integrity through the isolated connection.
3Strength
If the back wall structure is continuous and rigid, then the overall strength is high, but the support arms cannot be independently aligned on uneven surfaces
Solution Approach 1:
The continuous back wall structure is segmented by introducing an isolating recess that separates the fastening portion from the support arm portion. This segmentation allows the support arm portion to be independently aligned and tilted to achieve precise alignment on uneven surfaces while the fastening portion maintains secure attachment to the wall.
Solution Approach 2:
The isolating recess extracts or removes material to create a separation between the fastening portion and support arm portion. This extraction creates the necessary space for the support arm portion to tilt and align independently, achieving precise alignment on uneven surfaces without compromising the overall structural strength of the back wall.
Data Source
AI summary
The back wall for a web material dispenser having first and second web material support arms configured to support a web material supply. The back wall includes a fastening portion configured to mount the back wall to a supporting surface; a first support arm portion for the first web material support arm to be mounted thereto; and a weakness-providing junction at least partially circumscribing the first support arm portion from the fastening portion for the first support arm portion to be tiltable with respect to the fastening portion. Also, a web material dispenser including such a back wall and a method for securing a web material dispenser to a supporting surface.