Cutting Blade Locking Recess Prevents Uncontrolled Detachment
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Solution Overview
Problem
Existing high-performance slicing devices with rotating cutting blades face issues where the cutting blade can detach uncontrolled from the blade mount if the fastening means fail, leading to potential property damage and personal injury.
Innovation Solution
A high-performance slicing device with a rotating cutting knife and a securing recess that accommodates a securing means, preventing uncontrolled detachment by clamping the cutting blade between the contact surface and the blade holder, and allowing for controlled shutdown if the fastening means fail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If only fastening means (screws) are used to attach the cutting blade to the blade holder, then the cutting blade can be easily mounted and removed, but the cutting blade may detach uncontrolled if the fastening means fail, causing property damage and personal injury
Solution Approach 1:
The patent implements a securing recess in the cutting blade that engages with a securing protrusion on the blade holder, creating a passive safety mechanism that prevents uncontrolled detachment. This securing feature works in conjunction with the fastening screws, providing a backup connection that activates if the primary fastening means fail, thereby cushioning against the harmful effects of blade detachment.
Solution Approach 2:
The attachment system is segmented into two distinct functional components: fastening means (screws) for primary attachment and easy removal, and a securing means (recess-protrusion engagement) for preventing uncontrolled detachment. This segmentation allows each component to specialize in its specific function, maintaining ease of operation while improving reliability.
2Reliability
If a securing means is added to prevent uncontrolled detachment, then safety is improved, but the device complexity increases
Solution Approach 1:
The securing recess is integrated directly into the cutting blade structure, and the securing protrusion is incorporated into the blade holder design. This merging of the securing function into existing structural elements minimizes the addition of separate components, thereby limiting the increase in device complexity while still achieving the reliability improvement.
Solution Approach 2:
The securing recess and protrusion design serves multiple functions: it prevents uncontrolled detachment, provides a mounting reference feature, and works in conjunction with the fastening screws to create a comprehensive attachment system. This multi-functionality reduces the need for additional dedicated components.
3Reliability
If the cutting blade is securely fastened with multiple fastening means, then the reliability of attachment is improved, but the ease of removing the cutting blade for maintenance is reduced
Solution Approach 1:
The attachment system is divided into primary fastening means (screws) that can be independently removed for blade removal, and a secondary securing means that provides safety without hindering the removal process. This segmentation allows maintenance personnel to remove the blade by simply loosening the fastening screws without having to deal with additional securing mechanisms.
Solution Approach 2:
The securing recess is designed to automatically engage with the securing protrusion when the cutting blade is mounted, providing immediate safety without requiring additional manual steps. This preliminary engagement action ensures reliability is established automatically during the mounting process, without adding complexity to the removal process.
Data Source
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AI summary
The invention relates to a cutting blade for a heavy-duty slicing device, comprising a center of rotation and at least one fastening cavity for mounting the cutting blade on the heavy-duty slicing device. The invention further relates to a heavy-duty slicing device and a method for mounting a cutting blade on a heavy-duty slicing device.