Cutting Tool Movable Support for Reconstituted Plate
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Solution Overview
Problem
Existing cutting tools for reconstituted materials face challenges with high cutting force requirements, risk of blade twisting, and complexity in handling and storage, particularly on construction sites, where tools are prone to loss or damage due to adjustable mechanisms being cumbersome and unreliable.
Innovation Solution
A cutting tool with a blade pivotally mounted on a fixed support featuring a slot with a width greater than the blade, and a movable support with adjustable slots to maintain blade distance from slot edges, reducing the risk of twisting and allowing for precise cutting with less force, while being compact and easy to handle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the slot width is increased to reduce cutting force and blade twisting risk, then the tool becomes larger and more difficult to handle and store
Solution Approach 1:
The slot width is made adjustable through a movable support that can shift between multiple positions, allowing the tool to adapt its slot width dynamically. This enables the tool to have a wider slot for reducing cutting force when needed, while maintaining compactness for handling and storage by adjusting to a narrower slot configuration when not in use.
Solution Approach 2:
The physical parameter of slot width is changed from fixed to variable. By modifying the slot width parameter according to different cutting conditions and plate thicknesses, the tool optimizes cutting force requirements while maintaining portability through selective parameter adjustment rather than permanent structural changes.
2Reliability
If the slot width is increased to reduce blade twisting, then the cutting precision on thick plates may be compromised
Solution Approach 1:
The movable support allows dynamic adjustment of slot width based on plate thickness. For thick plates, the support is positioned to provide appropriate clearance that prevents blade twisting while maintaining cutting precision. For thinner plates, the slot width is reduced to enhance cutting accuracy, thus adapting to different precision requirements while preventing blade twisting in all conditions.
Solution Approach 2:
Different regions of the slot width are optimized for different functions: sufficient width is provided where needed to prevent blade twisting, while maintaining tighter tolerances in the cutting zone to ensure precision. The movable support enables local optimization of slot dimensions according to the specific cutting requirements.
3Adaptability or versatility
If adjustable mechanisms are added to modify slot width, then the device complexity increases and reliability decreases due to more parts that can fail
Solution Approach 1:
The adjustable mechanism uses a simple movable support with multiple predetermined positions rather than continuous adjustment. This discrete positioning system reduces mechanical complexity compared to fine-adjustment mechanisms, while still providing adaptability for different plate thicknesses and cutting conditions.
Solution Approach 2:
The adjustment mechanism is segmented into discrete, simple positions rather than continuous adjustment. The movable support can be positioned at several fixed locations along the slot, each optimized for specific plate thickness ranges. This segmentation simplifies the mechanism by eliminating complex continuous adjustment components while maintaining versatility.
4Force
If the slot width is increased to reduce cutting force, then the tool structure must be reinforced increasing its weight and size
Solution Approach 1:
Instead of permanently reinforcing the tool structure for maximum slot width, the support is made movable allowing the slot width to be adjusted dynamically. This enables the tool to achieve reduced cutting force when needed with a wider slot, while maintaining a compact, lightweight structure when operating with a narrower slot, thus avoiding permanent structural reinforcement and associated weight increase.
Data Source
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AI summary
The invention provides a cutting tool (100) for a plate made of reconstituted material comprising: • a fixed support (10), on which a blade (20) is pivotally mounted by a pivot (21), and comprising a slot (3) intended to receive at least a part of the blade (20) during the cutting; • a movable support (30) movablely mounted about the axis of rotation (21), between an engagement position in which the movable support (30) is arranged along the longitudinal edges (3a) of the slot (3) of the fixed support (10), and a retraction position in which the movable support (30) is arranged away from the longitudinal edges of the slot of the fixed support, said movable support (30) comprising a slot (33) of a width less than the width of the slot (3) of the fixed support (10) and greater than the width (Lt) of the blade (20).