Safety Workbench Front Pane Cleaning Position for Contamination Control
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Solution Overview
Problem
Existing safety workbenches with adjustable front panes are difficult to clean completely without compromising the protective functions and exposing operators to contamination risks, as the front pane cannot be fully cleaned from above and may require an unsafe overhead working position.
Innovation Solution
The safety workbench incorporates an additional cleaning position for the front pane, allowing it to be partially lowered below its closed final position, creating a cleaning opening between the pane top edge and the housing, enabling cleaning from above and below while maintaining the work opening's protective functions, with mechanisms to prevent excessive lowering and ensure safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the front pane is mounted to be pushed up and down parallel to the housing front side, then the work opening can be adjusted, but the complete interior of the front pane cannot be cleaned
Solution Approach 1:
The front pane is designed with dynamic positioning capability, allowing it to move not only up and down but also rotate about a horizontal axis. This dynamic movement enables the pane to assume a cleaning position where the interior surface becomes accessible for cleaning, resolving the contradiction between maintainability and operational functionality.
2Ease of manufacture
If the front pane is opened upward for cleaning, then the interior can be cleaned, but the working chamber is completely exposed to contamination and the operator is exposed to contaminants
Solution Approach 1:
The cleaning operation is prepared in advance by positioning the front pane in a specific cleaning position that exposes only the necessary cleaning surface while maintaining the protective enclosure. This preliminary positioning allows cleaning to be performed without compromising the protective function, as the working chamber remains enclosed and protected from contamination.
Solution Approach 2:
The cleaning function is extracted as a separate operational mode. Instead of opening the entire working chamber for cleaning, only the necessary portion (the front pane interior) is made accessible through specific movement, while the rest of the protective enclosure remains intact and functional.
3Ease of manufacture
If the operator stands below the front pane to clean it, then cleaning can be performed, but the operator risks contamination from falling dirt or dripping cleaning liquid
Solution Approach 1:
The cleaning operation is inverted from the conventional approach. Instead of the operator standing below and looking up, the front pane is positioned and oriented so that cleaning can be performed from a safe position, with the cleaning surface properly oriented to prevent contamination from falling on the operator.
Data Source
AI summary
The present invention relates to a safety workbench having a working chamber enclosed by a housing and a housing front side, which has a work opening, which is closable by an adjustable front pane, the front pane having at least one additional cleaning position, in which it is situated at least partially below a closed final position, in which the work opening is completely covered, in such a way that a cleaning opening is formed between pane top edge and housing. The front pane is easier and safer to clean than the previously known safety workbenches due to this additionally provided cleaning position.