Mounting bracket for wall mounted items
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Solution Overview
Problem
Existing methods for mounting wall signs and picture frames, such as using screws, nails, hooks, or adhesives, face issues like damage to the wall, residue left behind, and security concerns due to easy removal.
Innovation Solution
A unique mounting bracket system utilizing releasable adhesive wafers, similar to 3M's COMMAND fasteners, which are secured with a shear force to attach and detach from the wall without damaging it, and a slot for applying this force to ensure secure and residue-free removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws or nails are used to affix the sign to the wall, then the sign is securely mounted, but the wall is damaged with holes remaining after removal
Solution Approach 1:
The patent replaces the mechanical fastening system (screws or nails penetrating the wall) with an adhesive bonding system. The adhesive wafer creates a chemical bond between the bracket and wall surface, achieving secure mounting without mechanical penetration, thereby eliminating wall damage while maintaining mounting reliability
Solution Approach 2:
The patent introduces an adhesive wafer as an intermediary element between the bracket and the wall. This adhesive layer transfers and distributes the mounting forces across a broader area of the wall surface, reducing stress concentration and preventing the localized damage associated with screw or nail holes
2Object-affected harmful factors
If adhesive is used to mount the sign, then no wall damage occurs upon proper removal, but the sign may be too easily removed or permanently affixed depending on adhesive strength
Solution Approach 1:
The patent modifies the adhesive properties by selecting specific adhesive materials and formulations with controlled bond strengths. The adhesive is engineered to provide optimal bonding under normal conditions while allowing controlled removal through application of shear force, achieving a balance between mounting security and removable-ness without wall damage
3Ease of operation
If hooks are used to hang the sign, then easy removal is possible, but security is compromised allowing unauthorized removal
Solution Approach 1:
The patent replaces the simple mechanical hook system with an adhesive-bonded bracket system. The adhesive connection provides significantly higher resistance to unauthorized removal attempts while still allowing controlled removal through proper technique, thereby enhancing security without permanently compromising the wall surface
4Reliability
If strong adhesive is used to permanently affix the sign, then mounting security is maximized, but removal requires damaging the wall surface
Solution Approach 1:
The patent carefully selects adhesive parameters including bond strength, viscosity, and curing characteristics to achieve optimal performance. The adhesive provides strong bonding equivalent to permanent methods while maintaining the capability for clean removal through proper technique, eliminating the need to damage the wall surface for removal
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 easy, secure, and damage-free mounting and removal of signs, picture frames, and other items on walls, addressing the issues of wall damage and security concerns while allowing for quick replacement of items.
Implementation Method 1
The adhesive wafer is of the type commonly known in the industry and various configurations of products using this adhesive are sold by 3M Company under the trademark 'COMMAND'
Implementation Method 2
These adhesive fasteners are removed by applying a shear force to the adhesive fastener by means of pulling vertically on the adhesive fastener when the fastener is secured to a wall. This stretches the adhesive fastener until the shear force is sufficient to release the fastener from the wall
Data Source
AI summary
A mounting bracket for releasably mounting an article such as a sign or picture frame to a substantially flat surface such as a wall. The bracket has an adhesive disc securely attached to one side of the bracket and the opposite side of the adhesive disc has a releasable adhesive face for attaching to the wall. A tool inserted into the mounting bracket applies a rotative force to the mounting bracket for applying a shear force to the releasable adhesive face which causes the adhesive face to release from the wall. The mounting bracket is releasably mounted to a sign, which allows easy installation and removal of the sign from the wall.