Bow-Form Gate Rotation for Order Picker Reach
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Solution Overview
Problem
Existing order picker trucks face challenges in reaching items deep into storage racks due to the design of the gate, which often limits access and safety when trying to extend reach.
Innovation Solution
The order picker truck features a vertically movable platform with a gate that includes an upper bar with a bow form, allowing it to be rotated from a vertical to a horizontal position, providing increased reach while being safer with dual-end support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gate is made rigid and fixed in a vertical position to ensure safety, then safety is improved, but the driver's reach into the rack is limited
Solution Approach 1:
The gate is designed with dynamic characteristics, allowing it to be tilted from a vertical position to a horizontal position. The upper bar can be rotated between vertical and horizontal positions, enabling the driver to adjust the gate configuration based on whether safety or reach is the priority. This resolves the contradiction by making the gate adaptable rather than fixed.
Solution Approach 2:
The gate is divided into multiple segments including an upper bar, middle bar, and lower bar. The upper bar with bow form can be independently tilted relative to the other components. This segmentation allows the upper bar to extend reach while the lower bars maintain safety function, resolving the contradiction between safety and reach.
2Device complexity
If the upper bar is held at one end only to simplify the structure, then device complexity is reduced, but stability and safety are compromised
Solution Approach 1:
The gate components (upper bar, middle bar, lower bar) are merged into a coordinated system where the upper bar is held at both ends by the middle and lower bars. This combining of support functions from multiple gate components provides enhanced stability and safety without requiring a completely separate support mechanism.
3Ease of operation
If the gate is tilted outward to increase reach, then accessibility is improved, but the risk of falling off the platform increases
Solution Approach 1:
The gate's dynamic tilting capability allows it to adapt to different operational needs. When tilted outward for accessibility, the gate remains connected to the platform through multiple bars and pivots, maintaining safety. The dynamic design ensures that safety and accessibility are not mutually exclusive.
Solution Approach 2:
The upper bar with bow form extends in another dimension (horizontally outward) when tilted, providing increased reach without compromising the vertical safety structure. This dimensional change allows the gate to provide both protection and extended access.
Data Source
Figure 1~2
Figure 3a~5b
Figure 6a~8b
AI summary
Oder picker truck having a vertically moveable platform (2) and a gate that is opened in order to get access to the platform (2). The gate comprises an upper bar (3) having a bow form. Means are arranged allowing the bow of the upper bar (3) to be turned from a vertical position to a horizontal position and vice versa.