Warehouse Access Shutter Structure for Safe Selective Openings
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Solution Overview
Problem
Existing selective access devices in automated warehouses are prone to tampering, have high operational complexity, and increased costs due to numerous components and additional safety barriers, which slow down picking and depositing operations and require photoelectric sensors for safety.
Innovation Solution
A selective access device with a tiltable frame and motor-driven roller shutters and doors that allow ergonomic access, providing adjustable openings and enhanced safety without additional electronic or physical barriers, reducing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If roller shutters or shutters are used to increase flexibility in opening areas, then adaptability is improved, but reliability deteriorates due to flimsy construction and higher risk of forcing
Solution Approach 1:
The shutter is constructed as a composite structure combining a rigid frame with infill panels (glass, metal mesh, or solid panels). This composite construction provides both the flexibility needed for selective opening areas and the structural strength required for security and resistance to forcing attempts.
Solution Approach 2:
The shutter is divided into multiple independent segments or panels that can be individually opened, closed, or reinforced. This segmentation allows flexible configuration of opening areas while maintaining structural integrity through the connecting frame structure.
2Adaptability or versatility
If two shutters slide parallel to the long side of the tray, then access flexibility is improved, but speed deteriorates due to high opening and closing times
Solution Approach 1:
The shutter system incorporates motorized actuation with variable speed control, allowing rapid opening and closing operations. The dynamic control system can adjust the speed and timing of different shutter segments to optimize both access flexibility and operational speed for high material flow requirements.
3Reliability
If additional electronic or physical barriers are provided to guarantee safety, then reliability is improved, but device complexity increases
Solution Approach 1:
The shutter structure serves multiple functions simultaneously: it provides selective access control, ensures user safety through its robust construction, and eliminates the need for separate electronic or physical barriers. The frame and panel assembly acts as both the access mechanism and the safety barrier.
4Adaptability or versatility
If a large number of components are used for guiding and operating shutters, then adaptability is improved, but ease of manufacture deteriorates due to high costs and more probability of faults
Solution Approach 1:
The guiding mechanism is integrated directly into the shutter frame structure rather than being separate components. The frame itself provides the guiding tracks and support structures, reducing the total number of parts while maintaining the selective access capability through coordinated movement of integrated elements.
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
The solution enhances safety and flexibility while reducing operational complexity and costs, allowing for efficient and ergonomic access to compartments, eliminating the need for photoelectric sensors and minimizing waiting times during picking and depositing operations.
Implementation Method 1
roller shutters... guided so as to slide
Implementation Method 2
roller shutters... guided so as to slide along guides
Implementation Method 3
motor-driven roller shutters and doors
Implementation Method 4
tiltable frame
Implementation Method 5
motor-driven roller shutters and doors
Data Source
AI summary
A selective access device for a picking/depositing station in warehouse defines an access area engaged by a first cover that is defined by a pair of movable plane surfaces parallel or coplanar to one another; these plane surfaces are slidable along a first rectilinear axis under the action of a movement system so as to open/close a first opening; in the access area, there is provided a second cover above the first cover, to define a second opening aligned with the first opening; the second cover consists of a plurality of doors, each rotating about a relative rotation axis in respect to the first cover; the doors are arranged side-by-side along a second rectilinear axis, orthogonal to the first axis and are closed by respective locks, while the rotation axes are parallel to this second axis.