Strapping Device Fastening Loop Retention Mechanism
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Solution Overview
Problem
Existing strapping devices face challenges in efficiently retaining and tensioning strap ends during the strapping process, often requiring additional clamps or complex mechanisms.
Innovation Solution
A method and device that utilize a fastening loop formed around a joining base within the strapping device, allowing the strap end to be retained and tensioned without additional clamps, by joining overlapping strap segments using a joining apparatus with a jaw and base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional clamps or complex mechanisms are used to retain strap ends during tensioning, then the strap end retention is improved, but the device complexity increases
Solution Approach 1:
The joining base serves dual functions: it acts as both the joining surface for welding strap segments and as a retention mechanism for the strap end during tensioning. By combining these two functions into a single component, the patent eliminates the need for separate clamps or retention mechanisms, thereby reducing device complexity while maintaining reliable strap end retention.
Solution Approach 2:
The joining base is designed as a multi-functional element that provides both joining capability (through its joining surface) and retention capability (through the fastening loop formation). This universal component handles multiple tasks in the strapping process, reducing the overall number of components needed and simplifying the device structure.
2Device complexity
If a fastening loop is formed around the joining base, then the need for additional clamps is eliminated, but the joining apparatus complexity increases
Solution Approach 1:
The method involves forming the fastening loop around the joining base as a preliminary step before tensioning. This preliminary action of looping the strap around the joining base creates a self-retaining structure that simplifies subsequent operations, as the strap end is automatically retained without requiring additional clamps or complex retention mechanisms during the tensioning phase.
3Ease of operation
If the joining base is removed from the fastening loop after tensioning, then the strapping device can be separated from the strap, but the joining base design becomes more complex
Solution Approach 1:
The joining base is designed with dynamic characteristics that allow it to transition between different functional states: during the joining and tensioning phases, it serves as a fixed joining surface and retention structure; after tensioning, it can be easily removed from the fastening loop. This dynamic design enables the joining base to adapt to different operational requirements without requiring overly complex structural features.
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 solution simplifies the strapping process by eliminating the need for additional clamps and enhancing the retention and tensioning of strap ends, thereby improving the efficiency and reliability of the strapping operation.
Implementation Method 1
joining overlapping first and second strap segments of the fastening loop by the joining apparatus to form a strap joint
Implementation Method 2
tensioning the strap around the one or more articles
Data Source
AI summary
A method of strapping one or more articles with a strap includes the steps of: providing a strapping device including a joining apparatus with a joining jaw and a joining base; placing an end portion of the strap around the joining base such that a fastening loop around the base is formed; joining overlapping first and second strap segments of the fastening loop by the joining apparatus to form a strap joint; placing the strap around one or more articles such that a third strap segment overlaps a segment of the fastening loop; tensioning the strap around the one or more articles; joining the third segment of the strap with the segment of the fastening loop by the joining apparatus; shearing the tensioned strap off from an untensioned bulk portion of the strap; separating the strapping device from the tensioned strap by removing the joining base from the fastening loop.