Two-Part Wall Fastener for Pre-Attached Panel Assembly
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Solution Overview
Problem
Existing fastening methods for attaching wall elements to base plates in prefabricated construction, such as in prefabricated houses, are inefficient as angle brackets cannot be pre-attached due to protrusion issues during transport, complicating assembly.
Innovation Solution
A two-part fastening device comprising a tension plate and a base plate, where the tension plate is pre-attached to the wall element during manufacturing, allowing for a positive connection through a two-part movement sequence involving horizontal and vertical components, enabling secure attachment without protrusions during transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If angle brackets are attached to wall elements during pre-assembly, then fastening can be performed earlier in the process, but the angle brackets protrude from the wooden components during transport, potentially causing damage
Solution Approach 1:
The fastening device is divided into two separate parts: a tension plate that can be pre-attached to the wall element, and a base plate that remains separate during transport. This segmentation allows the tension plate to be attached during manufacturing without causing protrusion issues, while the base plate is only connected during the final assembly operation at the construction site.
Solution Approach 2:
The tension plate is attached to the wall element during the manufacturing process at the factory, before transport. This preliminary action enables early preparation of the wall element while avoiding the protrusion problem by using a flat plate design that can be securely mounted without extending beyond the wall element boundaries.
2Device complexity
If a single-part fastening device is used, then the structure is simpler, but it cannot be pre-attached during manufacturing without causing protrusion issues
Solution Approach 1:
The fastening device is divided into two separate parts: a tension plate that can be pre-attached to the wall element, and a base plate that remains separate during transport. This segmentation allows the tension plate to be attached during manufacturing without causing protrusion issues, while the base plate is only connected during the final assembly operation at the construction site.
3Strength
If angle brackets are used for fastening, then the connection is secure, but they cannot be attached during pre-assembly, making subsequent assembly more difficult
Solution Approach 1:
The tension plate is attached to the wall element during the manufacturing process at the factory, before transport. This preliminary action enables early preparation of the wall element while avoiding the protrusion problem by using a flat plate design that can be securely mounted without extending beyond the wall element boundaries.
Solution Approach 2:
The tension plate acts as an intermediary element that facilitates the connection between the wall element and the base plate. It provides a pre-prepared mounting surface that simplifies the final assembly operation, allowing workers to easily attach the base plate without dealing with complex alignment requirements.
Data Source
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AI summary
The invention relates to a fastening device (1) for attaching a wall element (2) to a base plate (3), wherein: - the fastening device (1) has a pull plate (4) which can be attached to the wall element (2) and a base plate (5) separate from the pull plate (4) which can be attached to the base plate (3), - the base plate (5) has several coupling elements (10), - the pull plate (4) has several counter-coupling elements (11) corresponding to the coupling elements (10), and - each of the coupling elements (10) can be coupled to a respective counter-coupling element (11) by a movement with a linear second component (13), whereby the pull plate (4) can be positively connected to the base plate (5), and - the base plate (5) has a connecting element (8) with which the base plate (5) can be attached to the base plate (3) in the direction of the linear second component (13).Furthermore, the invention relates to an arrangement (6) and a method for attaching a wall element (2) to a base plate (3).