Forklift Clamping Apparatus for Selective Bucket Handling
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Solution Overview
Problem
Current devices are inadequate for lifting closely-spaced layers of buckets, particularly those with frustoconical shapes, as they require vertical sides and cannot selectively lift partial layers, leading to inefficient and labor-intensive manual handling that poses risks to workers due to the weight of the buckets.
Innovation Solution
A clamping apparatus mounted on a forklift capable of grasping and lifting buckets in closely-spaced layers, allowing for selective lifting of individual or multiple buckets, and adjusting the spacing between them, which can be used to align, stack, or rearrange buckets efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling of buckets is used, then flexibility in selecting which buckets to move is maintained, but labor intensity and risk of injury increase significantly
Solution Approach 1:
The clamping apparatus is designed to automatically grasp and release buckets through hydraulic actuation, eliminating the need for manual lifting while maintaining selective capability through precise positioning and control mechanisms
Solution Approach 2:
Manual mechanical lifting is replaced with a hydraulic clamping system that uses fluid pressure to generate clamping force, substituting human physical effort with a mechanical-hydraulic system that can selectively grasp buckets without direct human contact
2Object-affected harmful factors
If layer pickers are used to lift entire layers, then labor intensity is reduced, but the ability to selectively lift partial layers is lost
Solution Approach 1:
The clamping apparatus divides the layer of buckets into individually addressable units by using multiple independently controllable clamping elements that can engage specific buckets while leaving others untouched, enabling partial layer selection
Solution Approach 2:
The clamping apparatus incorporates adjustable and movable clamping elements that can be dynamically positioned to engage different buckets in the layer, allowing the system to adapt to various selection patterns rather than being fixed to lift entire layers
3Force
If devices for lifting 55-gallon barrels are used, then lifting capability is provided, but the ability to access closely-spaced objects is insufficient
Solution Approach 1:
The clamping elements are designed with a nested or telescoping structure that allows them to be compact when not in use and extend into closely-spaced buckets when needed, enabling access to tightly packed arrangements
Solution Approach 2:
The clamping apparatus features localized clamping points with specifically shaped contact surfaces that match the geometry of bucket rims, allowing precise engagement with individual buckets even when closely spaced, rather than using a single large lifting surface
4Device complexity
If layer pickers requiring vertical sides are used, then simple structure is maintained, but compatibility with frustoconical shapes is lost
Solution Approach 1:
The clamping elements are designed with adjustable geometric parameters including angled contact surfaces that can be modified to match the taper angle of frustoconical buckets, allowing the same basic structure to accommodate different bucket geometries without requiring completely different mechanisms
Data Source
AI summary
A clamping apparatus includes a frame adapted for mounting on a forklift so as to be raised and lowered along a mast of the forklift, a carriage supported by the frame for movement with respect to the frame in the widthwise direction of the forklift, two lifting arms supported by the carriage and extending in the widthwise direction of the frame, and a drive mechanism operatively connected to one of the lifting arms for producing relative movement of the lifting arms in the fore-and-aft direction of the frame to enable the lifting arms to grasp and release a load. The clamping apparatus can lift a portion of the objects in a closely-spaced layer and remove them from the layer without disturbing other objects in the layer. The clamping apparatus is particularly suitable for handling buckets.