Strapping Device Spacer Maintains Tension
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Solution Overview
Problem
Existing strapping devices lose tension in the strap when the device is removed, leading to unreliable strapping of articles.
Innovation Solution
A strapping device with a spacer that remains between the articles and the strap after the device is removed, maintaining tension through upper and lower support surfaces and allowing the device to be easily detached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the strapping device is removed after tensioning and joining the strap, then the device can be reused and the strapping process can continue, but the strap loses tension leading to unreliable strapping
Solution Approach 1:
The joining base is divided into a base body and a separable spacer. The spacer remains with the strap after device removal while the base body is reused, maintaining tension through the spacer's support surface
Solution Approach 2:
The spacer acts as an intermediary element between the strapping device and the strap. It transfers the tension-maintaining function from the removable device to a permanent component that stays with the strap
2Reliability
If a spacer is added to maintain tension after device removal, then strapping reliability is improved, but the device complexity increases
Solution Approach 1:
The joining base is segmented into two functional parts: the base body (device component) and the spacer (permanent component). This segmentation allows the device to remain simple while the spacer provides the tension-maintaining function
Solution Approach 2:
The spacer is designed as a simple, inexpensive component that remains with the strap, while the complex base body is reused. The spacer's simplicity reduces overall device complexity
Data Source
AI summary
A strapping device for strapping one or more articles with a strap includes a joining apparatus for joining two overlapping portions of the strap, the joining apparatus including a joining jaw and a joining base arranged to receive the two overlapping portions of the strap therebetween, wherein the joining base includes a base body and a spacer releasably connectable with the base body, the spacer including at least one lower support surface for the one or more articles and at least one upper support surface for the strap, wherein the spacer is configured to be releasable from the base body when the two overlapping portions of the strap are joined.