Work Vehicle Cabin Mounting Articulated Guide Device
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Solution Overview
Problem
Existing cab mountings for working machines, such as those disclosed in DE 10 2005 030 746 A1 and DE 10 2009 026 503 A1, suppress all cabin movements relative to the chassis, which limits the ability to dampen and partially transmit these movements to the driver, and are complex in design and costly.
Innovation Solution
A cab mounting system with a guide device featuring articulated guide elements on both the chassis and cabin sides, connected by a joint arrangement allowing specific degrees of freedom for movements like vertical tilting and rolling, while preventing undesirable yaw movements, and an independent damping system with coaxially arranged spring elements to reduce load and simplify design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a scissor pantograph guide device is used to suppress all cabin movements, then stability and control are improved, but comfort deteriorates because desirable dampened movements cannot occur
Solution Approach 1:
The guide device is segmented into multiple independent articulated guide elements (at least two) instead of a single rigid scissor pantograph structure. Each guide element can independently articulate to allow specific cabin movements while preventing others, enabling selective control of movement types to balance stability and comfort.
Solution Approach 2:
The guide elements are designed with articulation capabilities that allow dynamic adjustment of cabin movement restrictions. The articulated connections enable the guide device to adaptively control different degrees of freedom, permitting desirable dampened movements while suppressing harmful ones, rather than rigidly fixing all movements.
2Manufacturing precision
If a scissor pantograph and multiple control arms are used to guide cabin movement, then guidance precision is improved, but device complexity increases
Solution Approach 1:
Each articulated guide element is designed to perform multiple functions simultaneously: guiding cabin movement in specific directions, providing structural support, and enabling articulation for desired movements. This multi-functionality reduces the need for separate components for each function, thereby simplifying the overall structure while maintaining guidance precision.
Solution Approach 2:
The guide device merges the functions of multiple control arms and the scissor pantograph into a unified system of articulated guide elements. By combining guidance and support functions into integrated articulated structures, the design reduces component count and simplifies the mounting structure while preserving precise cabin guidance capability.
3Adaptability or versatility
If a complex guide device with multiple components is used, then guidance functionality is improved, but manufacturing cost increases
Solution Approach 1:
The guide device is divided into modular articulated guide elements that can be manufactured independently and then assembled. This segmentation enables standardized production of individual components, reducing tooling costs and facilitating economies of scale, while the modular assembly maintains the sophisticated movement control capability.
Solution Approach 2:
The articulated guide elements are designed as universal components that can control multiple types of cabin movements through their articulation mechanisms. This multi-functionality reduces the total number of specialized components needed, lowering manufacturing complexity and cost while preserving comprehensive movement control capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances comfort by allowing desired cabin movements while reducing vibrations and acoustic oscillations, simplifies the construction by reducing the number of components, and decreases installation space, thereby lowering costs and improving integration into the working machine architecture.
Implementation Method 1
At least two spring elements arranged coaxially to the pivot axis are assigned to the chassis-side and cabin-side guide elements
Implementation Method 2
The guide elements can be pivotally connected around the respective pivot axis by means of a bearing bushing
Data Source
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AI summary
The present invention relates to a cabin mounting (1) for the resilient and damping suspension of a cabin (3) of a working machine relative to a chassis (2) of the working machine, wherein the cabin mounting (1) comprises a damping system and at least one guide device for guiding the movement (16, 17, 18) of the cabin (3), wherein the guide device comprises at least one chassis-side, mounted, in particular articulated, guide element (10) and one cabin-side, mounted, in particular articulated, guide element (11), which are articulated to each other by a joint arrangement (9) with at least one degree of freedom.