Perforated Band Tensioning Bracket for Secure Wind Brace Loads
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Solution Overview
Problem
Existing tensioning brackets and systems require on-site adaptation and connection, leading to potential worker errors and increased risk of faults under extraordinary loads, and are not cost-effective.
Innovation Solution
A tensioning bracket with a first and second body section connected via a common section, featuring projecting pins and holes for direct force transfer, allowing easy installation and secure connection to a perforated band, with a tensioning nut for force distribution and a flange for torque-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If on-site adaptation and connection of straps and brackets is performed, then the tensioning system can be customized to fit specific requirements, but the risk of worker errors and faults increases under extraordinary loads
Solution Approach 1:
The bracket is pre-assembled with pins and holes in specific patterns before delivery to the site. This preliminary preparation ensures proper alignment and connection geometry is achieved without requiring complex on-site adaptation, thereby reducing worker errors while maintaining customization capability through selection of different pre-assembled bracket configurations.
2Adaptability or versatility
If on-site connection between strap and bracket is performed by workers, then the system can be adapted to different lengths and configurations, but the complexity and time of installation increases
Solution Approach 1:
The bracket elements are pre-configured with pins and holes in predetermined patterns during manufacturing. This allows the bracket to be delivered ready-for-use, eliminating time-consuming on-site assembly operations while still providing configuration flexibility through the design of the pre-established pin and hole patterns that accommodate various strap lengths and arrangements.
3Reliability
If the bracket is designed to handle extraordinary loads with high strength materials, then the reliability under wind and snow loads improves, but the manufacturing cost increases
Solution Approach 1:
The bracket is divided into multiple body sections connected by a common section, with pins and holes distributed throughout the structure. This segmentation allows the load to be distributed across multiple connection points rather than concentrated in one area, enabling the use of thinner, more cost-effective materials while maintaining high strength and reliability under extraordinary wind and snow loads.
Solution Approach 2:
The bracket utilizes a composite structure combining multiple body sections, pins, and holes in a integrated design. This composite approach optimizes material usage by placing material only where structurally necessary, achieving high strength-to-cost ratio for handling extraordinary loads while maintaining manufacturability.
4Strength
If the bracket uses a complex connection system with multiple pins and holes, then the force distribution and structural integrity improves, but the device complexity increases
Solution Approach 1:
Multiple body sections are merged into a single integrated bracket element with pins and holes formed as part of the unified structure. This merging eliminates the need for separate fasteners and connection components, achieving excellent force distribution across multiple connection points while simplifying the overall device by reducing the number of discrete parts and assembly steps.
Data Source
AI summary
The present invention relates to a tensioning bracket for tensioning at least one perforated band defining a longitudinal band axis, the bracket comprising at least one bracket element having a thickness and comprising a first body section defining a first longitudinal body axis, a first body width, and the first body section comprising a number of projecting pins arranged to receive the perforations of the band, the projecting pins identifying a pin side and an opposing non-pin side of the bracket element, and a second body section defining a second longitudinal body axis, a second body width comprising a number of holes arranged in the same pattern as the projecting pins of the first body section, and the bracket element further comprising an attachment section for attaching means for pulling and thereby tensioning the perforated band, wherein the first and second body sections are connected to each other via a common section made of the same piece of material as the first and second body section and wherein the bracket element is configured so that when bending the element along a bending line in the common section the pins of the first section are received in holes of the second body section.