Working Machine Cabin Side Panel Grille and Lock Mechanism
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Solution Overview
Problem
The manufacturing process of working machine cabins faces limitations in precision and strength due to separate assembly of grille plates and frame bodies, and the conventional air intake ducts require multiple components and complex manufacturing processes, while the lock mechanism can hit internal components during operation.
Innovation Solution
The cabin design integrates cross and transverse members forming a grille with a frame member for enhanced stiffness, incorporates a duct formed from the side panel's outer peripheral portions to reduce components and processes, and modifies the lock mechanism to prevent hitting internal components by reversing the pressing direction of the lock member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If grille plates and frame bodies are assembled separately, then manufacturing flexibility is improved, but manufacturing precision and strength deteriorate
Solution Approach 1:
The patent integrates the grille plate and frame body into a single monolithic structure formed by press processing. This merging eliminates the separate assembly process, thereby resolving the contradiction by achieving both manufacturing precision (through single-step forming) and manufacturing flexibility (through versatile press processing capabilities).
2Adaptability or versatility
If conventional air intake ducts with multiple components are used, then adaptability is improved, but device complexity and manufacturing processes worsen
Solution Approach 1:
The air intake duct is integrated into the side panel as a built-in feature rather than a separate component. This merging reduces the number of components and simplifies manufacturing while maintaining adaptability through design flexibility in the press processing stage.
Solution Approach 2:
The side panel serves multiple functions: it provides structural support, forms the cabin enclosure, and incorporates the air intake duct functionality. This multi-functionality reduces overall device complexity while maintaining adaptability for different air intake configurations.
3Ease of operation
If lock mechanism operates without pressing direction control, then ease of operation is improved, but reliability deteriorates due to component collisions
Solution Approach 1:
The pressing member applies force to the lock member in advance to control its movement direction, preventing the lock member from hitting internal components. This preliminary control action ensures reliable operation while maintaining ease of use through automatic direction control.
Solution Approach 2:
The pressing member acts as an intermediary between the lock member and the cabin interior, controlling the lock member's path and preventing harmful collisions. This intermediary mechanism maintains operational simplicity while ensuring reliability through controlled movement.
Data Source
AI summary
A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.