Dual Cylinder Coupler Locking Mechanism for Multi-Type Attachments
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Solution Overview
Problem
Current multi pick-up couplers for loader machines lack an effective lock system to securely capture attachments with different receiver structures, limiting their versatility and efficiency.
Innovation Solution
A coupler design with a dual actuator lock system that includes first and second actuators to move lock plungers between locked and unlocked positions, allowing it to securely engage both first and second types of attachment receiver structures, utilizing inner and outer rib mounts and channels for secure mating and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single actuator lock system is used in multi pick-up couplers, then the device complexity is reduced, but the reliability of capturing different attachment receiver structures is insufficient
Solution Approach 1:
The lock system is segmented into two independent actuator assemblies (first and second actuators), each responsible for a specific receiver structure type. This segmentation allows each actuator to be optimized for its specific function while maintaining overall system reliability through redundancy and specialization.
Solution Approach 2:
The coupler body is designed with universal adaptability to accommodate both first and second types of attachment receiver structures through dual actuator assemblies. Each actuator can independently capture its corresponding receiver structure, providing multi-functional capability within a single coupler system.
2Adaptability or versatility
If dual actuator lock system is implemented, then the adaptability to different receiver structures is improved, but the device complexity increases
Solution Approach 1:
The lock system divides functionality into two separate actuator assemblies, each dedicated to a specific receiver structure type. This segmentation enhances adaptability by providing specialized capture mechanisms for different attachments while organizing complexity into manageable, independent modules.
Solution Approach 2:
The dual actuator assemblies serve as intermediary mechanisms between the coupler body and different attachment receiver structures. Each actuator acts as a specialized mediator that facilitates reliable connection between the coupler and its corresponding attachment type through dedicated lock plungers and channels.
3Reliability
If lock plungers are positioned to capture attachments, then the reliability of attachment capture is improved, but the locking channels may be obstructed
Solution Approach 1:
The lock plungers are designed with localized functional zones where specific portions engage with corresponding features on the attachment receiver structures. This local quality optimization ensures reliable capture at the plunger-receiver interface while maintaining clear locking channels for actuator operation.
Solution Approach 2:
The lock plungers engage attachments through vertical movement in the locking channels, creating a dimensional separation between the capture function (vertical engagement) and the channel function (horizontal fluid flow). This dimensional arrangement allows reliable attachment capture without obstructing the locking channels.
Data Source
AI summary
A loader coupler includes a body with spaced-apart inner rib mounts for mating respectively with ribs of a first type of attachment. The body also includes inner locking regions that are aligned with the inner rib mounts. Spaced-apart outer rib mounts are also provided on the body and are adapted to mate respectively with a second type of attachment. Outer locking regions are aligned with the outer rib mounts. A lock system is connected to the body and includes: (i) a first actuator operatively connected to left and right first lock plungers and adapted to move the left and right first lock plungers between locked and unlocked positions; and, (ii) a second actuator operatively connected to left and right second lock plungers and adapted to move the left and right second lock plungers between locked and unlocked positions.