Dynamic Storage System with Independently Moveable Shelves
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Solution Overview
Problem
Existing automated dynamic storage systems face inefficiencies in accessing and storing loads due to the need for moving other storage bins to access bins in vertical stacks, and they often require complex suspension systems for crane operation, which can be cumbersome and space-intensive.
Innovation Solution
A storage system with dynamically moveable shelves and a crane that can move horizontally and vertically, supported directly by the frame structure, allowing for simultaneous movement of multiple shelves and direct access to storage cells without the need for complex suspension, thereby reducing empty space requirements and improving access efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If storage bins are arranged in vertical stacks with bins at the top directly accessible, then access efficiency is improved, but other bins in the stack cannot be accessed without moving the top bin
Solution Approach 1:
The storage system divides the vertical stack into individually accessible segments. Each storage bin is equipped with its own drive mechanism, allowing any bin to be moved independently to the access position without requiring other bins to be moved first. This segmentation eliminates the sequential access limitation of traditional vertical stacks.
Solution Approach 2:
The storage bins are designed with dynamic movement capabilities through integrated drive mechanisms. Each bin can dynamically reposition itself horizontally to the access corridor and vertically within the stack, transforming the static vertical stack into a dynamic system where any bin can be quickly brought to the access position.
2Ease of operation
If a crane is suspended from carriers and raised/lowered to retrieve bins, then load transfer is enabled, but the system becomes complex and space-intensive
Solution Approach 1:
The patent removes the complex suspension system from the design. Instead of suspending the crane from carriers that need to be raised and lowered, the crane is mounted directly on the access corridor level and interacts with storage bins through horizontal movement and direct engagement, eliminating the vertical suspension mechanism entirely.
Solution Approach 2:
The system introduces an intermediary transfer mechanism where the crane on the access corridor works in conjunction with the drive mechanisms on the storage bins themselves. The bins act as intermediaries that move themselves to the crane's position, eliminating the need for complex suspended carrier systems.
3Productivity
If multiple shelves are moved simultaneously, then time efficiency is improved, but the drive mechanism complexity increases
Solution Approach 1:
The drive mechanism is designed as a universal, modular unit that can be applied to multiple storage bins simultaneously. Each bin has its own identical drive mechanism, allowing any number of bins to be moved at the same time without increasing the complexity of the individual drive units. The system leverages the universality of the modular drive design to achieve parallel movement of multiple shelves.
4Ease of operation
If empty space is reserved for corridors in traditional systems, then access is enabled, but space utilization is reduced
Solution Approach 1:
The system transitions from a two-dimensional planar corridor access model to a three-dimensional volumetric access model. Storage bins can move not only horizontally along the access corridor but also vertically within the stack and diagonally through the storage volume, allowing access to any bin without requiring large empty corridor spaces. This multi-dimensional movement dramatically improves space utilization while maintaining full access capability.
Data Source
AI summary
Systems and methods are provided relating to a storage and retrieval system for selectively storing and accessing loads. The storage system having a dynamic structure of storage cells located in one or more of shelves. Shelves in the system are independently moveably attached to a structure of the system. The system also includes a crane arranged to move horizontally with an integrated transfer device, arranged to convey a stored load in a horizontal direction and then lift in a vertical direction. Methods of accessing a load in the system and storing a load in the system are also provided.