Wall Processing Attachment With Compensation for Stable Contact Pressure
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Solution Overview
Problem
Conventional machines designed for floor processing are not suitable for walls and ceilings due to the inability to maintain consistent contact pressure, leading to fluctuations and impaired processing quality, and existing attachments for walls and ceilings lack efficient control and universal application capabilities.
Innovation Solution
An attachment for mobile handling devices featuring a mounting unit, a processing head with a compensation arrangement that provides defined contact pressure, allowing for easy operation and self-sufficiency, with the ability to maintain constant pressure despite fluctuations and operate on various handling devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional floor processing machines are used for wall and ceiling processing, then the machine structure is simple and easy to operate, but the contact pressure fluctuates and processing quality deteriorates
Solution Approach 1:
The patent applies dynamics by making the attachment device movable relative to the handling device through a telescopic device with multiple extendable segments. This allows the processing head to dynamically adjust its position and maintain constant contact pressure on vertical surfaces while the handling device moves, resolving the contradiction between ease of operation and processing quality.
Solution Approach 2:
The attachment device acts as an intermediary between the handling device and the processing head. It includes a telescopic device with compensation arrangements that mediate the connection, allowing independent control of contact pressure while the handling device provides overall positioning, thus maintaining processing quality without complicating operation.
2Force
If the processing head is made heavy to provide sufficient contact pressure on walls and ceilings, then the contact pressure is sufficient, but the handling device requires higher lifting capacity and overall complexity increases
Solution Approach 1:
The patent applies anti-weight by using a spring element that provides a counteracting force to balance the weight of the processing head. The spring element is pre-loaded to compensate for the gravitational force on the processing head, allowing it to maintain contact pressure on vertical surfaces without requiring the entire assembly to be excessively heavy, thus avoiding increased device complexity.
Solution Approach 2:
The attachment device is segmented into multiple independent components: a mounting unit, a telescopic device with multiple extendable segments, and a processing head. This segmentation allows each component to be optimized independently - the processing head can be lightweight while the telescopic device provides the necessary force transmission and positioning capabilities.
3Manufacturing precision
If a telescopic device with multiple segments is used to maintain constant contact pressure, then processing quality is improved, but the device structure becomes more complex
Solution Approach 1:
The telescopic device with multiple extendable segments serves multiple functions: it provides constant contact pressure through controlled extension, enables positioning at various distances from the handling device, and accommodates different processing head weights. This multi-functionality justifies the increased structural complexity by delivering superior processing quality across diverse application scenarios.
4Ease of operation
If the attachment device is made lightweight for easy handling, then ease of operation is improved, but insufficient contact pressure is provided on vertical surfaces
Solution Approach 1:
The patent applies pneumatics and hydraulics by using a pneumatic or hydraulic cylinder within the telescopic device to generate the force needed for maintaining contact pressure. This allows the attachment device itself to remain lightweight and easy to handle, while the powered cylinder provides the necessary force transmission to ensure sufficient contact pressure on vertical surfaces.
Data Source
AI summary
An attachment for a mobile handling device is configured for processing walls or ceilings. The attachment comprises a mounting unit that is arranged to be supported at a mounting interface of the handling device, a processing head that is arranged to be equipped with at least one tool for material-removing processing or smoothing processing, and a compensation arrangement that is arranged between the mounting unit and the processing head and that defines a longitudinal axis. The mounting unit provides at least two pivot positions for the attachment that are offset from one another. The processing head is movable relative to the mounting unit in a longitudinal direction along the longitudinal axis. The compensation arrangement is configured to provide a defined contact pressure force for the processing head in a defined operating range along the longitudinal axis towards the surface to be processed.