Facade Panel Spacer Insert for Centered Fastening and Thermal Movement
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Solution Overview
Problem
Existing facade panel mounting systems face issues such as panel breakage due to improper screw centering, movement of panels relative to screws, ingress of pollutants, and complexity in mounting, particularly with temperature and humidity-induced expansions and contractions, and the need for quick and efficient installation.
Innovation Solution
A resilient spacer insert with radially extending vanes that centers screws in oversized holes, allowing panel movement relative to the screws, while being symmetrical for easy orientation and minimizing installation time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If oversized holes are used to compensate for panel expansion and contraction, then panel breakage is prevented, but panel stability decreases and pollutants can enter through the holes
Solution Approach 1:
A mounting element acts as an intermediary component between the screw and the panel hole. This element includes a spacer portion that fits into the oversized hole and a centering portion that holds the screw, allowing the hole to remain oversized for expansion/contraction accommodation while the mounting element provides stable screw positioning and prevents pollutant ingress through its sealing lip.
2Manufacturing precision
If inserts are provided in oversized holes to center screws, then screw centering is improved, but panel movement relative to screw is restricted creating tension
Solution Approach 1:
The mounting element incorporates a resilient spacer portion that can deform elastically. This allows the mounting element to maintain precise screw centering while dynamically adapting to panel expansion and contraction movements. The resilient nature enables the spacer to compress or expand, accommodating relative movement between panel and screw without creating excessive tension.
3Object-affected harmful factors
If a sealing lip extends to the rim of the hole to seal against moisture, then sealing is improved, but panel movement relative to hole is hampered
Solution Approach 1:
The sealing function is localized to a specific region rather than extending to the hole rim. The sealing lip is positioned at the front surface of the mounting element, sealing only the immediate screw penetration area. This localized sealing approach prevents moisture ingress at the critical fastening point while leaving the rest of the oversized hole open to accommodate panel movement.
4Stability of the object's composition
If complex multi-piece inserts are used to allow panel movement, then panel-screw movement is enabled, but device complexity and manufacturing cost increase
Solution Approach 1:
Multiple functional components are merged into a single integrated mounting element. The spacer portion, centering portion, and sealing lip are all formed as one piece, eliminating the need for separate components. This monolithic structure reduces manufacturing complexity while maintaining the ability to accommodate panel movement through the resilient spacer portion.
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 spacer insert effectively prevents panel breakage, seals against pollutants, and simplifies the mounting process by ensuring proper screw centering and allowing for panel movement, thus enhancing stability and durability.
Implementation Method 1
The resilient spacer insert comprises a circular ring configured for abutting an inner rim of the fixation hole in the panel, and flexible vanes extending from the ring inwards towards a central region of the ring but not to the center of the ring so as to leave open a central guiding passage for the screw
Data Source
AI summary
A panel, for example facade panel. is mounted to a support structure, for example a wall, by using spacer inserts (1) in fixation holes (3) of a facade panel (2). The spacer insert (1) comprises an outer circular ring (4) for abutting an inner rim (3A) of the fixation hole (3) and comprises vanes (5) extending from the ring (4) inwards towards a central region (7) of the ring (4) but not to the center (6) of the ring (4) so as to leave open a central guiding passage (8) for a screw (17) or nail for fastening the panel (2) against a support structure by the screw (17) or nail. The vanes (3) are resilient for allowing lateral movement of the ring (4) and the panel (2) relatively to the fastened screw (17) or nail extending through the guiding passage (8).