Grass-mower Manual Collector-door Lock Release Mechanism
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Solution Overview
Problem
Conventional grass-mowers pose a challenge as workers cannot easily exit the collector main-body when the collector-door is closed and locked, hindering their ability to access the outer part.
Innovation Solution
A grass-mower design incorporating a manual collector-door lock releasing mechanism utilizing a stick-like member that allows workers to release the lock from within, ensuring easy exit even when the collector-door is closed and locked, without interrupting automatic dump operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the collector-door lock mechanism is engaged to secure the collector-door, then the security and containment of the collector main-body is improved, but the ease of exit for workers inside the collector main-body deteriorates
Solution Approach 1:
A stick-like member is introduced as an intermediary tool that workers can manipulate from inside the collector main-body to actuate the lock releasing mechanism. This mediator enables workers to release the lock without direct access to external controls, resolving the contradiction between secure locking and easy exit.
Solution Approach 2:
The lock control function is segmented into two independent mechanisms: an automatic lock releasing mechanism for normal dump operations and a manual lock releasing mechanism for worker emergency exit. This segmentation allows both security during operation and safety for workers to be maintained simultaneously.
2Ease of operation
If a manual collector-door lock releasing mechanism is added to enable worker exit, then the ease of operation for workers is improved, but the device complexity increases
Solution Approach 1:
The stick-like member serves multiple functions: it acts as both a manual operating tool for workers and integrates with the existing automatic lock releasing mechanism. This multi-functionality reduces the need for entirely separate systems, thereby limiting the increase in device complexity while maintaining ease of operation.
3Productivity
If the automatic lock releasing mechanism operates during dump, then the productivity of grass dumping is improved, but the reliability of lock release may be compromised if grass interferes with the mechanism
Solution Approach 1:
The manual lock releasing mechanism provides an alternative activation method that does not depend on the mechanical parameters (such as door opening angle or dump position) that may be affected by grass interference. Workers can manually trigger the lock release regardless of the dump mechanism's state, ensuring reliable operation while maintaining productivity.
Data Source
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AI summary
A grass-mower, comprising: a collector (700) which possesses a collector main-body (710) which accommodates mowed grass to an inner part; and a collector-door lock mechanism (1000) which performs a lock of a collector-door (711) of the collector main-body (710), characterized in that the grass-mower comprises a manual collector-door lock releasing mechanism (3000) which releases the lock of the collector-door (711) based on a manual operation which is performed in the inner part of the collector main-body (710).