Two-part Spindle Load-Strapping Device for Quick Engagement
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Solution Overview
Problem
Existing load-strapping devices require tedious manipulation, especially in outdoor conditions with gloves or on slippery surfaces, due to the need to manually pull the strap end through a slot or manipulate spindle parts for engaging and releasing straps, which is time-consuming and inefficient.
Innovation Solution
A two-part spindle design where the first part is pivotably suspended at a right angle to the second part, allowing the strap to be laid on the exposed side and tightened without needing to pull it through a slot, with a magnetic bias to keep the spindle closed and a stop to arrest its rotation, enabling easy release without manual manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the spindle is designed as a two-part structure with lateral movement for strap engagement, then the strap can be positioned without pulling through a slot, but the device complexity increases
Solution Approach 1:
The spindle is divided into two separate parts: a fixed part and a movable part. The movable part can be shifted laterally relative to the fixed part to open and close the strap receiving space. This segmentation allows the strap to be easily positioned without manual manipulation, resolving the contradiction by enabling simple operation while accepting increased structural complexity.
Solution Approach 2:
The movable part of the spindle is designed to be dynamically positionable - it can be shifted laterally to an open position for strap engagement, then returned to a closed position for tightening. This dynamic capability allows the device to adapt between two operational states, improving ease of operation while maintaining a relatively simple overall structure through controlled movement.
2Ease of operation
If manual manipulation of spindle parts is required for strap release, then the strap can be disengaged, but the operation becomes tedious and time-consuming
Solution Approach 1:
The movable part of the spindle is designed to be dynamically positionable - it can be shifted laterally to an open position for strap engagement, then returned to a closed position for tightening. This dynamic capability allows the device to adapt between two operational states, improving ease of operation while maintaining a relatively simple overall structure through controlled movement.
3Adaptability or versatility
If the spindle parts are manipulated in outdoor conditions with gloves or on slippery surfaces, then the strap can be engaged and released, but the operation is impeded and becomes more difficult
Solution Approach 1:
The movable part of the spindle is designed to be dynamically positionable - it can be shifted laterally to an open position for strap engagement, then returned to a closed position for tightening. This dynamic capability allows the device to adapt between two operational states, improving ease of operation while maintaining a relatively simple overall structure through controlled movement.
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
Facilitates quick and efficient strap engagement and disengagement, saving operator time and improving usability, especially in challenging outdoor conditions.
Implementation Method 1
magnetic bias to keep the spindle closed
Data Source
Figure 1
Figure 2~5
Figure 6
AI summary
A load-strapping device for straps used for securing a load on a vehicle comprises mutually pivotable frame parts (1, 2) which by their movement can rotate a two part spindle (3) in one direction (19) provided by pawls (10, 11) and a ratchet wheel (9). The spindle (3) is composed by a base part (12) and a pivotable part (13) that may pivot between a closed position while abutting on a stop (18) and an open position where the pivotable part (13) extends at an angle relative to the closed position. Easy mounting of the strap on the spindle is possible as the small member (13) is pivoted to the open position, avoiding threading the end of the strap in the spindle. Also, more easy and time-saving release of the strap is possible as the unwinding rotation of the spindle (3) provides that the small member (13) automatically moves to the open position by the action of the strap.