Lateral Load Transfer Mechanism for Narrow Aisle Storage
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Solution Overview
Problem
Conventional lift trucks require wide aisles to transfer loads to racking systems at 90 degrees, limiting storage density due to the need for counterweights and increasing the risk of toppling when loads are moved laterally, which reduces load handling capacity.
Innovation Solution
A load transfer mechanism with telescopic rails and a secondary lift mechanism that allows lateral movement of loads into racking systems without applying a moment to the lift truck, enabling narrower aisle widths and improved load handling performance by supporting loads at both ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the load is moved laterally away from the lift mast to transfer it sideways onto the racking, then the storage density can be increased by reducing aisle width, but the moment applied to the lift truck causing it to topple sideways increases, thus reducing the load handling capability
Solution Approach 1:
The patent introduces an intermediary load transfer mechanism consisting of a pair of laterally extendable rails and a carriage that moves along these rails. The rails are supported at their free ends by the racking system, creating a bridging structure between the lift truck and the racking. This intermediary mechanism allows the load to be transferred laterally without directly applying a toppling moment to the lift truck, as the load is supported by both the lift mechanism and the racking system simultaneously during the transfer process.
2Stability of the object's composition
If conventional lift trucks use counterweights mounted remote from the lift mechanism to balance the load, then the load can be balanced during transfer, but the aisle width must be wide enough to allow 90-degree approach to the racking, significantly reducing storage density
Solution Approach 1:
The patent segments the load transfer function into distinct components: the lift mechanism for vertical movement, the laterally extendable rails for lateral positioning, and the carriage with secondary lift mechanism for precise load placement. This segmentation allows each component to perform its specific function efficiently, enabling lateral transfer without requiring the entire lift truck to approach the racking at 90 degrees, thus reducing aisle width requirements while maintaining load balance.
Solution Approach 2:
The load transfer mechanism incorporates dynamic elements including laterally extendable rails that can adjust their length, a carriage that moves along the rails, and a secondary lift mechanism that can raise and lower the load independently. These dynamic components allow the system to adapt to different transfer positions and maintain balance during the transfer process, eliminating the need for wide aisles and fixed 90-degree approach angles.
Data Source
AI summary
A mechanism for transferring loads characterized by a frame adapted to be mounted on a lift mechanism of a lift truck, having a pair of telescopic rails mounted at one end to the frame. The telescopic rails extending parallel to one another, extendable laterally of the lift mechanism of the lift truck, between retracted and extended positions by an actuator that moves the telescopic rails. A carriage is mounted on the telescopic rails for movement there along when the telescopic rails are in their extended positions and the free ends of the telescopic rails are supported. The carriage having a secondary lift mechanism mounted thereon by which a load may be raised and lowered relative to the carriage.