Grapple Mount Pin Alignment Device for Loader Buckets
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Solution Overview
Problem
Attachable grapples for front-end loaders lack a reliable mechanism for aligning mount pin holes, often requiring brute force and heavy tools for attachment, and existing adjustments introduce slop and increase assembly time due to multiple adjustment points and added clearances.
Innovation Solution
A mounting system with a singular, centrally located adjustment device for each mount pin, featuring a grapple attachment structure with a hook pin and adjustable abutment surface to align pin apertures, minimizing lateral clearance and facilitating easy insertion of mount pins during attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mounting methods are used without alignment devices, then the grapple can be attached to the loader bucket, but the mount pin holes cannot be aligned reliably and require brute force and heavy tools
Solution Approach 1:
The patent introduces a mounting system with alignment devices that act as intermediaries between the grapple attachment structure and the loader bucket. These alignment devices include adjustable abutment surfaces and alignment pins that facilitate precise alignment of mount pin holes without requiring brute force, thereby resolving the contradiction between ease of operation and alignment precision.
Solution Approach 2:
The patent employs adjustable abutment surfaces that can be positioned at different locations to change the geometric parameters of the mounting interface. This adjustability allows the alignment devices to compensate for manufacturing tolerances and achieve precise alignment of mount pin holes, improving both ease of mounting and alignment precision.
2Adaptability or versatility
If existing adjustment mechanisms are used, then multiple adjustment points are provided, but this introduces slop and increases assembly time due to added clearances
Solution Approach 1:
The patent extracts the essential alignment function from complex multi-point adjustment mechanisms and concentrates it into a singular, centrally located adjustment device. This simplified alignment device eliminates unnecessary adjustment points and associated clearances that cause slop, thereby reducing assembly time while maintaining sufficient adaptability through the central adjustment mechanism.
Solution Approach 2:
The patent merges multiple adjustment functions into a single integrated alignment device with a central adjustment point. This consolidation eliminates the need for multiple separate adjustment mechanisms, reducing the number of clearance interfaces and minimizing slop, thus decreasing assembly time while preserving adaptability through the unified adjustment system.
3Adaptability or versatility
If multiple adjustment points are provided for aligning mount pin holes, then adjustment flexibility is increased, but device complexity increases with multiple adjustment points
Solution Approach 1:
The patent extracts the core alignment functionality from a complex multi-point adjustment system and implements it through a singular, centrally located adjustment device. This extraction eliminates unnecessary adjustment points and reduces device complexity while maintaining adequate adjustment flexibility through the simplified central mechanism.
4Strength
If brute force and heavy tools are used for attachment, then the grapple can be mounted, but the process becomes difficult and time-consuming
Solution Approach 1:
The patent introduces alignment devices as intermediaries that facilitate the mounting process by providing mechanical guidance and alignment for the mount pins. These devices enable attachment using normal operational forces rather than brute force, making the process easier and more controlled while maintaining sufficient mounting strength.
Data Source
AI summary
A system for mounting a grapple on a loader attachment having a grapple mount structure, and may comprise a grapple attachment structure removably mountable to the mount structure. A mount pin alignment device may have an abutment surface configured to contact a support surface of the grapple mount structure in the mounted condition, with a position of the alignment device being adjustable to facilitate alignment of a second pin aperture of the attachment structure with a first pin aperture on the mount structure. The system may also include a lateral mount alignment element to laterally position the attachment structure with respect to the mount structure.