Surfaces machining apparatus
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Solution Overview
Problem
Existing surface treatment devices face challenges in handling and accessing difficult-to-reach areas due to limited mobility and unwanted forces or moments applied during manual control, leading to inefficient processing and controllability.
Innovation Solution
A surface treatment device with a sheet guide and carriage body that allows for linear movement and pivoting over a wide angular range, supported by multiple radial points, enabling improved mobility and force introduction, reducing unwanted moments and enhancing manual controllability through a cardan joint-like mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the guide part is rigidly fixed to the base arrangement, then structural stability is improved, but mobility and ease of operation deteriorate
Solution Approach 1:
The guide part is made dynamically movable relative to the base arrangement through a carriage body that can slide along a curved guide. This allows the system to transition between stable (fixed position) and mobile (adjustable position) states, resolving the contradiction between structural stability and ease of operation.
Solution Approach 2:
The guide part is segmented into a carriage body and a handle, connected through a movable joint. The carriage body moves along the curved guide while the handle remains relatively fixed, allowing independent optimization of stability and mobility for different components.
2Ease of operation
If the guide part is made movable to improve handling, then ease of operation is improved, but unwanted forces and moments are introduced to the base arrangement
Solution Approach 1:
The curved guide acts as an intermediary element between the movable carriage body and the fixed base arrangement. It channels and directs the forces and moments generated during operation, converting unwanted lateral forces into controlled radial forces that are beneficial for the machining process.
Solution Approach 2:
The forces and moments that would normally be harmful due to the movable guide part are converted into beneficial radial forces through the curved guide geometry. The lateral movements are transformed into effective downward and radial forces on the workpiece, improving machining quality.
3Adaptability or versatility
If a curved guide is used to enable wide angular pivoting, then adaptability is improved, but device complexity increases
Solution Approach 1:
A curved (arc-shaped) guide is used instead of a straight guide, enabling the carriage body to pivot through a wide angular range while maintaining a relatively simple structural design. The curvature naturally provides the desired motion paths without requiring complex mechanisms.
Data Source
Figure 1
Figure 2
Figure 2a~2b
AI summary
2.1 Such a surface cultivation device with a base assembly that can be moved in a functional position on a surface to be cultivated, and with a guide element articulated to the base assembly for manual control of the base assembly, is known. 2.2 According to the invention, an arc guide is provided on the base assembly, on which a slide body connected to the guide element can be moved linearly and is supported on the arc guide at least radially by means of at least two support points spaced apart from each other along the arc guide. 2.3 Use as a floor care device