Profiled Rail System Two-Part Pocket Design
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Solution Overview
Problem
Existing profiled rail systems face challenges in achieving sufficient telescopability to accommodate wide expansion joints and cavities in floor coverings made of natural materials, as deep and flat pockets are difficult to produce with the necessary dimensional accuracy, limiting their applicability.
Innovation Solution
The profiled rail system features a two-part pocket configuration with a cover plate and base plate, allowing for unlimited depth without a deep recess, secured by undercut webs or screws, and a driving channel for secure assembly, enabling easy adjustment and removal of foreign objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the web is shaped long and the pocket is made deep to allow wide expansion joints and cavities to be covered, then the telescopability is improved, but the manufacturing precision deteriorates because deep and flat pockets cannot be produced with necessary dimensional accuracy by extrusion
Solution Approach 1:
The profiled rail is divided into a first part containing the cover plate and a second part containing the base plate. The pocket is formed by the combination of these two parts rather than being a single deep recess in one piece, allowing each part to be manufactured with standard extrusion precision while achieving the required overall pocket depth for wide expansion joints.
2Adaptability or versatility
If the pocket depth is increased to accommodate wide expansion joints, then the telescopability is improved, but the device complexity increases due to the need for multiple parts and assembly mechanisms
Solution Approach 1:
The profiled rail is segmented into a first part with the cover plate and a second part with the base plate, allowing the pocket to achieve greater depth through combination of parts rather than requiring a single complex deep recess.
Solution Approach 2:
The base plate is inserted into the first part to form the complete pocket structure. The second part nests within the first part, creating the deep pocket configuration through a simple insertion assembly process rather than complex multi-step assembly.
3Adaptability or versatility
If the pocket depth is increased to allow wide expansion joints to be covered, then the telescopability is improved, but the ease of manufacture deteriorates because deep recesses are difficult to mould
Solution Approach 1:
Instead of manufacturing a single piece with a deep recess, the system uses two separately manufacturable parts (cover plate and base plate) that are assembled to create the deep pocket. Each part can be produced using standard extrusion or molding processes with typical dimensional capabilities.
Solution Approach 2:
The solution transitions from creating depth within a single component to achieving depth through the combination of multiple components in sequence. The pocket depth is realized in the assembly dimension rather than within the mold cavity of a single part.
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
This design enhances telescopability, simplifies assembly, and ensures a secure, cost-effective production method, allowing the system to effectively bridge large expansion joints and cavities, while reducing the risk of tripping and complexity in installation.
Implementation Method 1
the web is of flexurally elastic configuration, in order to allow both parts to be easily clicked one into the other
Data Source
AI summary
The Profiled rail system (1) serves for bridging expansion joints, cavities and as an edging of floor coverings (3). System (1) has at least one web (9) aligned substantially parallel to the floor covering (3), which web (9) engages displaceably in a pocket (10). Pocket (10) is formed by a cover plate (13) overlapping the web (9) and a base plate (14) under the web (9). Pocket (10) is configured in at least two parts (11, 12). The first part (11) forms cover plate (13). The second part (12) forms base plate (14). The first part (11) and the second part (12) are held together. In a first embodiment, a undercut web (20) holds the parts together by a click connection. In a second embodiment, the parts are held together by at least one screw (18).