Pin Assembly Float Lock Switching for Work Implement Coupling
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Solution Overview
Problem
Current coupling assemblies are cumbersome and time-consuming to switch between float and locked configurations, requiring substantial disassembly and reassembly, which discourages operators from adjusting the work implement's position according to changing working conditions.
Innovation Solution
A coupling assembly with a pin assembly that can be easily switched between float and lock positions using a retainer with different orientations, featuring a float cam and lock plate, allowing the work implement to move relative to the machine in float mode and be fixed in lock mode, with a retainer plate that can be quickly flipped between configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate float and lock brackets are used on the work implement, then the coupling assembly can support the work implement in either float or locked configuration, but the coupling assembly becomes cumbersome and time-consuming to switch between configurations requiring substantial disassembly and reassembly
Solution Approach 1:
The patent combines the float bracket and lock bracket into a single integrated bracket assembly. The bracket includes a slot for float configuration and an aperture for lock configuration, both built into one piece rather than requiring separate brackets. This merging eliminates the need to detach and reattach separate brackets when switching between float and lock modes, directly resolving the technical contradiction by maintaining adaptability while dramatically improving ease of operation.
2Reliability
If the coupling assembly requires substantial disassembly and reassembly to switch between float and lock configurations, then the work implement can be securely locked or floated, but the time, effort, and cost associated with switching increases significantly
Solution Approach 1:
The pin is pre-configured with a tapered end that facilitates insertion into either the slot or aperture of the integrated bracket. The bracket is designed beforehand with both the slot and aperture in predetermined positions, allowing the operator to simply move the pin between pre-prepared receptacles rather than performing complex disassembly and reassembly operations. This preliminary preparation of the bracket structure maintains reliable securing while minimizing switching time.
3Adaptability or versatility
If conventional coupling assemblies use separate float and lock brackets requiring detachment and reattachment, then the work implement can be positioned in different configurations, but the complexity of the coupling assembly increases
Solution Approach 1:
The patent integrates the float bracket and lock bracket functionalities into a single unified bracket structure. The integrated bracket contains both a slot for float mode and an aperture for lock mode as built-in features of one piece. This merging reduces the total number of components from multiple separate brackets to a single bracket assembly, thereby maintaining adaptability while reducing device complexity.
Data Source
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AI summary
A coupling assembly (14) for a machine (2) includes a work implement (10) having a float mode, in which the work implement (10) moves relative to the machine (2), and a lock mode, in which the work implement (10) has a fixed position relative to the machine (2). A pin assembly (50) connects the work implement (10) to the machine (2) and itself is movable between a float position, in which the pin assembly (50) supports the work implement (10) in the float mode, and a lock position, in which the pin assembly (50) supports the work implement (10) in a lock mode. A retainer (100) has a float assembly configuration, in which the retainer (100) holds the pin assembly (50) in the float position, and a lock assembly configuration, in which the retainer (100) holds the pin assembly (50) in the lock position, thereby facilitating adjustment of the work implement (10) between float and lock mode.