Front Loader Lock Lever Latching for Tool Detachment Alignment
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Solution Overview
Problem
The existing front loader locking mechanism fails to maintain the lock lever in the unlocked state when the working tool is detached from the attachment body, leading to potential misalignment and operational issues.
Innovation Solution
A front loader design incorporating a lock pin, a lock lever, a latching portion, and a working tool detection lever that moves the lock pin between attaching and releasing positions, ensuring the lock lever remains in the unlocked state when the working tool is detached, utilizing a holding mechanism to secure the lock lever in the correct position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is used to attach the working tool to the attachment body, then the working tool can be securely fixed, but the lock lever cannot be maintained in the unlocked state when the working tool is detached
Solution Approach 1:
The lock lever is designed to dynamically transition between locked and unlocked states based on the presence or absence of the working tool. When the working tool is detached, the lock lever automatically moves to the unlocked state through the detection lever mechanism, eliminating the need for manual intervention to maintain the unlocked state.
Solution Approach 2:
The detection lever provides feedback about the working tool's attachment status to the lock lever system. When the working tool is detached, the detection lever detects this state and triggers the lock lever to move to the unlocked state, creating a closed-loop feedback system that automatically maintains the correct lock lever state.
2Device complexity
If the lock lever is manually moved to switch between locked and unlocked states, then the mechanism is simple, but there is no structure to keep the lock lever in the unlocked state position when the working tool is detached
Solution Approach 1:
The detection lever acts as an intermediary between the working tool attachment status and the lock lever position. It translates the physical presence or absence of the working tool into mechanical motion that automatically positions the lock lever in the correct state, adding minimal complexity while significantly improving reliability.
Solution Approach 2:
The locking mechanism is designed to self-regulate the lock lever position based on the working tool's attachment status. The detection lever automatically triggers the lock lever to move to the appropriate state without requiring external intervention, making the system self-servicing and more reliable.
3Reliability
If a holding mechanism is added to maintain the lock lever in the unlocked state, then the lock lever can be securely held in the correct position, but the device complexity increases
Solution Approach 1:
The holding mechanism for the unlocked state is merged with the existing locking mechanism components. The detection lever serves dual functions: detecting the working tool's attachment status and simultaneously acting as the holding mechanism to maintain the lock lever in the unlocked state, thereby avoiding additional separate mechanisms and reducing overall complexity.
Data Source
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AI summary
A front loader includes a working tool and an attachment body to which the working tool is attached, and includes a lock pin configured to attach and fix the working tool, a lock lever configured to move the lock pin between a releasing position and an attaching position, and a latching portion having a holding mechanism configured to hold the lock lever at the releasing position and another mechanism configured to move the lock lever to the attaching position.