Sliding Lock Mechanism for Tiltable Operator Cab
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Solution Overview
Problem
Existing lock mechanisms for tiltable operator cabs in machines are complex, require significant effort to operate, and are susceptible to bending, making them inefficient and difficult to use effectively.
Innovation Solution
A lock mechanism featuring a sliding member with first and second locking pins that pivotably couples the operator cab to the machine, allowing for easy locking and unlocking of the tilt motion by sliding between positions, reducing the complexity and effort required for operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex locking mechanism with a single transverse shaft is used to secure the operator cab, then the cab can be locked in position, but the mechanism becomes susceptible to bending and requires significant effort and time to operate
Solution Approach 1:
The single transverse shaft is segmented into two separate brackets (first bracket and second bracket), each receiving an engagement member. This segmentation eliminates the bending susceptibility of a long single shaft while maintaining locking reliability through distributed engagement points.
Solution Approach 2:
The locking mechanism transitions from a single-point transverse shaft to a multi-point distributed bracket system with offset spacing. This dimensional change from one-dimensional shaft to two-dimensional bracket arrangement reduces mechanical stress concentration and improves operational ease.
2Reliability
If a complex mechanism with high part-count is used to tilt the cab, then the cab can be secured and tilted, but the mechanism requires a lot of time and effort to be operated
Solution Approach 1:
The two brackets and their respective engagement members are merged into a single integrated locking action through the pivotable coupling. The operator performs one tilting motion that simultaneously engages both brackets, reducing operation time while maintaining securing reliability.
Solution Approach 2:
The pivotable coupling mechanism serves multiple functions: it tilts the cab, locks both brackets simultaneously, and provides dynamic safety during non-rest states. This multi-functionality reduces the number of separate operations needed, minimizing time loss.
3Ease of operation
If a simple locking mechanism is used to allow easy operation, then the operator can easily tilt the cab, but the mechanism may lack sufficient reliability to secure the cab during vehicle operation
Solution Approach 1:
The engagement members are extracted as separate components received by the brackets, allowing independent optimization of each locking point. This extraction enables a simple operational interface while maintaining high reliability through distributed engagement.
Solution Approach 2:
The offset spacing parameter between the two brackets creates a geometric locking configuration that provides both ease of operation (through pivotable motion) and high reliability (through distributed engagement points that prevent accidental disengagement).
Data Source
AI summary
A lock mechanism for a tiltable operator cab of a machine is provided. The lock mechanism includes a first bracket which receives a first engagement member of the operator cab. The operator cab is pivotably coupled to an end of the machine. A second bracket receives a second engagement member of the operator cab. The second bracket is located at an offset spaced apart from the first bracket. The lock mechanism includes a sliding member having a first locking pin and a second locking pin. The sliding member slides between a first position and a second position. When the sliding member is in the first position, the first locking pin locks the first bracket with the first engagement member, and the second locking pin locks the second bracket with the second engagement member such that the sliding member locks a tilt motion of the operator cab.