Molded End Piece Integrating Deflection Roller for Sectional Door
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Solution Overview
Problem
Existing sectional door systems face challenges in achieving a stable and space-saving design, particularly when mounting components like bearing brackets are constrained by ceiling height, leading to increased assembly complexity and inefficiency.
Innovation Solution
A molded end piece with an integrated deflection roller and guide sections that optimizes the introduction of tensile forces vertically, incorporating a clamping device for traction mechanisms, and featuring a design that prevents upward movement of the top panel, ensuring secure closure and simplified assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If bearing brackets are mounted close to the ceiling due to space constraints, then the sectional door can be installed in limited spaces, but the assembly complexity increases and installation efficiency decreases
Solution Approach 1:
The patent combines the bearing bracket with the molded end piece into a single integrated component. The bearing bracket is formed as an integral part of the molded end piece, eliminating the need for separate mounting of bearing brackets and reducing the number of assembly steps. This merging resolves the contradiction by maintaining space-efficient installation while simplifying the assembly process.
Solution Approach 2:
The molded end piece serves multiple functions: it provides the end structure of the top rail, incorporates the bearing bracket for roller support, and integrates the deflection roller for cable guidance. This multi-functionality reduces the number of separate components needed, thereby simplifying assembly while maintaining compact installation space.
2Reliability
If multiple separate components are used for weight compensation, then the functions are well-defined, but the number of assembly steps increases and installation efficiency decreases
Solution Approach 1:
The patent merges the deflection roller with the molded end piece by forming it as an integral component. The deflection roller is directly incorporated into the molded end piece structure, eliminating separate assembly steps while maintaining its cable-deflecting function. This resolves the contradiction by reducing assembly complexity without compromising functional reliability.
3Ease of operation
If the top panel can be pushed open easily, then the door operation is simple, but the closure security is compromised
Solution Approach 1:
The patent employs asymmetric geometry in the guide section of the molded end piece. The guide section features a specific angular configuration that allows downward movement (closing) while preventing upward movement (opening). This asymmetric design ensures that the top panel can be closed easily but cannot be pushed open, resolving the contradiction between ease of operation and closure security.
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 solution enables a stable, space-efficient sectional door system with reduced assembly complexity, ensuring secure closure and efficient operation by optimizing force distribution and integrating components like deflection rollers and clamping devices.
Implementation Method 1
this also ensures that the tensile forces exerted by the weight compensation device are always introduced in an optimized manner in the vertical direction with a tensile point close to the plane of the closed door leaf
Implementation Method 2
The roller of the uppermost panel in the closed position is guided in the top rail
Implementation Method 3
spring mechanisms are particularly suitable for this purpose, which exert a decreasing tensile force during the opening process. Torsion spring mechanisms and tension spring mechanisms, for example
Data Source
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AI summary
The invention relates to a molded end piece for a sectional door with a connection for an upper rail (6) of the sectional door (1). According to the invention, the molded end piece has a roller receptacle (9) molded in one piece with a deflecting roller (10) of a weight compensation device rotatably mounted therein.