Multi-part Cut Guard with Pivot Latch for Rotary Tools
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Solution Overview
Problem
Existing cut guards for rotary tools are difficult to handle, as they require awkward manipulation to insert and remove tools and can unintentionally release, leading to instability and potential damage.
Innovation Solution
A multi-part cut guard with pivot joints formed by latch receptacles and stubs allows for easy and safe insertion and removal of rotary tools, featuring identical parts for simplified handling and a flexible design to accommodate various tool geometries, with material cutouts for weight reduction and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hinge and hook are used to connect the two-part transporting device, then the parts can be connected together, but the hook can release by itself and the device becomes awkward to handle
Solution Approach 1:
The transporting device is divided into two separate part elements that can be independently manipulated. Each part element has specific connection features (recess and protrusion) that enable reliable joining while maintaining ease of handling. The segmentation allows the user to work with one stable part element at a time rather than struggling with a connected unstable structure.
Solution Approach 2:
The connection feature (protrusion) is extracted as a separate element that can be easily inserted into the recess. This separation allows the connection to be made by simply inserting the protrusion into the recess without requiring complex hooking or latching mechanisms that can accidentally release.
2Reliability
If the two part elements are always connected together by a hinge, then they remain connected when used as intended, but the user cannot separate them from one another
Solution Approach 1:
The connection between part elements transitions from static (permanently connected by hinge) to dynamic (conditionally connected). The protrusion-recess connection allows the structure to be connected when needed for stability and separated when needed for adaptability. The connection state can change based on operational requirements.
Solution Approach 2:
The protrusion of one part element nests into the recess of the other part element, creating a secure connection when joined. This nesting mechanism allows the parts to be firmly connected during use while still permitting separation when the protrusion is removed from the recess.
3Reliability
If a closed circumference is formed by connecting part elements, then the rotary tool can be accommodated securely, but the device becomes complex to open and close
Solution Approach 1:
The closed circumference is segmented into discrete part elements with standardized connection interfaces. This segmentation allows the structure to maintain its closed, tool-retaining configuration while enabling easy opening by simply separating the modular parts through their protrusion-recess interfaces.
Data Source
AI summary
The invention relates to a multi-part cut guard for a tool that is rotatable in a cutting plane. The cut guard includes a first part element and at least one further part element. The part elements are connected together at their ends and form a closed circumference. Opposing first ends of the part elements are connected together, forming a pivot joint. The second ends of the part elements are fixed releasably together. The pivot joint is formed from a latching receptacle and a latching stub which form the pivot joint in the latched state and are intended to be separated in order to release the latching.