Timber Prefabrication Device with Adjustable Batten Stop Jig
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing prefabrication devices for timber construction are limited to the prefabrication of roof elements and lack the capability to efficiently produce facade elements, particularly ventilated facades, which are typically constructed on-site with substructures and battens.
Innovation Solution
A prefabrication device with two parallel longitudinal beams supporting rafter shoes and a stop jig with adjustable stops is used to prefabricate facade elements, allowing for precise positioning and alignment of battens, enabling the production of facade elements off-site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If facade elements are constructed on-site using conventional methods, then flexibility in installation is maintained, but manufacturing precision and construction time are reduced
Solution Approach 1:
The prefabrication device is designed to serve multiple functions: it can prefabricate both roof elements (using rafter shoes for beams) and facade elements (using stop jigs for battens). This multi-functionality allows the same basic structure to achieve high precision for different types of timber construction components, resolving the contradiction by enabling precision prefabrication without requiring entirely separate specialized devices.
Solution Approach 2:
The device is segmented into modular components: longitudinal beams, rafter shoes for beam support, and stop jigs with adjustable stops for batten positioning. This segmentation allows the device to be configured for different prefabrication tasks while maintaining precision, and reduces overall complexity by allowing individual modules to be added or removed based on specific project needs.
2Productivity
If facade elements are constructed on-site, then adaptability to different facade designs is maintained, but construction time and labor intensity increase
Solution Approach 1:
The stop jig incorporates adjustable stops that can be repositioned along the longitudinal beams to accommodate different batten spacing requirements. The stops can be moved, added, or removed based on the specific facade design, providing dynamic adaptability. This allows high-speed prefabrication while maintaining versatility for different facade configurations, resolving the contradiction between productivity and adaptability.
Solution Approach 2:
Battens are pre-positioned and pre-assembled into facade elements with precise alignment before being transported to the construction site. This preliminary action of prefabrication with pre-assembled components significantly accelerates on-site installation while the adjustable stop jig ensures adaptability to different designs, thus resolving the contradiction between construction speed and design flexibility.
3Manufacturing precision
If a large number of stops are provided on the stop jig for large-scale facade elements, then positioning accuracy is improved, but device complexity and setup time increase
Solution Approach 1:
Instead of providing individual stops for every possible batten position along the entire length of a large facade element, the stop jig uses longitudinal rails or grooves that allow stops to be continuously positioned at any location. This dimensional approach (allowing continuous positioning along a line rather than discrete fixed positions) maintains high alignment accuracy while significantly reducing the number of physical stops needed, thus resolving the contradiction between precision and device complexity.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A prefabrication device (10) for prefabricating prefabricated components (80) in timber construction has two longitudinal beams (18) spaced parallel to one another, wherein the longitudinal beams (18) each support at least one rafter shoe (30), and the rafter shoes (30) serve to receive beams and/or battens (88) that span the distance between the longitudinal beams (18). In order to be able to prefabricate a facade element, the prefabrication device (10) has a stop jig (50) on which a plurality of stops (58) are arranged and which runs from one of the two longitudinal beams (18) to the other of the two longitudinal beams (18).