Knife Cover With Movable Front Wall For Blade Protection
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Solution Overview
Problem
Existing knife covers are impractical for continuous use when the knife is not in use, as they need to be removed during washing or storage, potentially exposing the blade to damage or user injury.
Innovation Solution
A knife cover with a closed-loop frame design that allows the blade to be fully enclosed while maintaining accessibility from both sides, featuring a lock mechanism and side supports to secure the handle and prevent accidental contact with the cutting edge, enabling the knife to be kept covered during non-use scenarios like washing and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the knife cover is designed as a closed pocket enclosing the blade, then the blade is protected from accidental contact, but the knife cover needs to be removed during washing or storage, exposing the blade to damage or injury
Solution Approach 1:
The knife cover transitions from a static enclosed structure to a dynamic structure with a movable front wall that can open and close. This allows the cover to adapt between fully enclosed (protective) mode and open (accessible) mode, enabling continuous use during washing and storage without compromising blade protection when closed.
Solution Approach 2:
The front wall is designed as a separate movable segment rather than a fixed continuous structure. This segmentation allows the front wall to be independently displaced relative to the rest of the cover body, enabling the blade to be partially exposed or fully enclosed as needed, resolving the contradiction between protection and accessibility.
2Reliability
If the blade is fully enclosed in the knife cover, then the cutting edge is protected, but the blade surface area becomes inaccessible for cleaning or handling
Solution Approach 1:
The movable front wall creates a dynamic barrier that can be selectively opened. When opened, it allows full access to the blade surface for cleaning and handling while the rest of the cover remains in place. When closed, it provides complete protection. This dynamic mechanism resolves the contradiction between enclosure and accessibility.
Solution Approach 2:
The front wall can be opened beforehand to allow cleaning or handling of the blade, then closed again to restore protection. This preliminary action of opening the front wall enables blade accessibility without requiring complete removal of the cover, maintaining protection during non-use periods.
3Ease of operation
If the knife cover is removed during washing or storage, then the blade is accessible, but the blade may come into contact with metallic objects causing dulling or injury
Solution Approach 1:
The dynamic front wall allows the cover to maintain its protective function during washing and storage by being closed, while still enabling accessibility when needed. This eliminates the need to completely remove the cover, thereby preventing contact with metallic objects that could cause dulling or injury.
Solution Approach 2:
The movable front wall acts as an intermediary mechanism that mediates between the need for accessibility and the need for protection. It allows controlled exposure of the blade when necessary while maintaining the protective enclosure during storage and washing, preventing harmful contact with metallic objects.
Data Source
AI summary
The invention relates to a knife cover (1) comprising a frame (3) shaped as a closed loop, which defines on an inside a hole (4) for receiving a blade (5) of a knife (2) in a position where edges of the blade (5) are directed towards the frame (3) surrounding the blade. The knife cover (1) is provided with a lock (8) for receiving a handle (10) and with side supports (13, 14) protruding from the frame (3) for supporting opposite side surfaces of the blade (5) of the knife that can be received in the knife cover. The knife cover (1) is substantially free of obstacles preventing access to the hole (4) such that substantially the entire surface of the blade (5) of a knife that can be received in the knife cover (1) is accessible from both a side of the first side surface (6) and of the second side surface (7) of the knife cover.