Hydraulic Attachment Coupler with Automated Locking Pin
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Solution Overview
Problem
Existing couplers for heavy-equipment machines require manual operation to connect and disconnect attachments, which is time-consuming and forces operators to leave the cab, disrupting workflow.
Innovation Solution
A hydraulically operated coupler with a locking pin and actuator that allows secure coupling and decoupling of attachments from within the cab, using a frame with connection elements and a locking element that can be controlled to shift between locked and unlocked positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual manipulation of pins and locks is used to connect attachments, then the coupler structure remains simple, but the operation time increases and the operator must leave the cab
Solution Approach 1:
The patent replaces the manual mechanical manipulation system with an automated hydraulic actuation system. The actuator applies mechanical force to automatically manipulate the locking pins and latches, eliminating the need for manual intervention and reducing operation time while keeping the operator inside the cab.
Solution Approach 2:
The patent employs a hydraulic actuator to provide automated control of the locking mechanism. The actuator uses hydraulic pressure to move the locking pins and latches into engaged or disengaged positions, enabling remote operation from the cab and significantly reducing the time required for attachment connections.
2Productivity
If automated hydraulic actuation is used to control locking elements, then operation time is reduced and operator convenience is improved, but the device complexity increases
Solution Approach 1:
The hydraulic actuator serves multiple functions: it simultaneously controls the movement of locking pins, latches, and other coupling components. This multi-functionality reduces the need for separate actuators for each component, thereby limiting the increase in overall device complexity while achieving automated operation.
Solution Approach 2:
The patent combines multiple locking mechanisms (pins, latches, locks) into a single integrated coupling assembly that is controlled by one hydraulic actuator. This merging of functions into a unified system achieves automated operation without proportionally increasing complexity, as the actuator manipulates multiple components through a single control mechanism.
Data Source
AI summary
A coupler for releasably coupling an attachment to a heavy-equipment machine. The coupler comprises a frame, and a plurality of connection elements extending from the frame, with the connection elements configured to engage with the attachment. The coupler additionally comprises a locking pin configured to extend simultaneously through the frame and the attachment. The coupler further comprises a locking element configured to selectively engage with the locking pin to securely couple the coupler to the attachment. The coupler further comprises an actuator configured to shift the locking element between an unlocked position and a locked position.