Repositionable Oscillating Tool Accessory with Adjustable Roller
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Solution Overview
Problem
Power hand tools lack a flexible and secure mechanism to position accessories at varying distances from the workpiece, limiting user control over operations such as cutting and sanding.
Innovation Solution
A repositionable tool accessory with a tool accessory housing, a depth stop rod, a roller, and a locking knob, which can be slidably and securely positioned relative to the power tool's output member, allowing the roller to be positioned at different locations and orientations to control accessory placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed accessory mounting mechanism is used, then the structure is simple and reliable, but the user cannot adjust the accessory position to maintain optimal distance from the workpiece
Solution Approach 1:
The mounting mechanism transitions from a fixed static structure to a dynamic adjustable system. The rod can slide along the rod opening to reposition the accessory, and the locking knob enables the user to lock the rod at desired positions. This dynamic capability allows the accessory to maintain optimal distance from the workpiece while controlled by a relatively simple mechanism.
2Measurement precision
If the accessory is made repositionable with sliding and locking mechanisms, then positioning precision is improved, but the device complexity increases
Solution Approach 1:
The positioning mechanism is segmented into distinct functional components: the rod for position adjustment, the rod opening as a guide, and the locking knob for securing the position. This segmentation allows each component to perform its specific function efficiently, achieving precise positioning without requiring a complex integrated system.
Solution Approach 2:
The rod acts as an intermediary element between the user's adjustment action and the accessory position. By sliding the rod along the rod opening, the user can precisely control the accessory's position. The locking knob then mediates to secure this position, providing precise and stable positioning through simple mechanical interaction.
3Adaptability or versatility
If multiple mounting structures are provided for different positions, then versatility is improved, but the device complexity and number of parts increases
Solution Approach 1:
The rod and rod opening combination serves as a universal positioning system that can accommodate multiple positions along its length. Instead of providing separate mounting structures for each position, this single universal mechanism allows the accessory to be positioned at any location along the rod's travel path, achieving versatility without increasing the number of components.
Data Source
AI summary
A power tool constructed in accordance to one example of the present disclosure can include a repositionable tool accessory. The repositionable tool accessory can be selectively coupled to a first mounting structure on the tool. The repositionable tool accessory can include a tool accessory housing, a rod, a roller, and a locking knob. The tool accessory housing can define a first rod opening and include engaging structure that is configured to cooperatively mate with the first mounting structure. The rod can slidably translate along the first rod opening. The roller can be rotatably coupled to a distal portion of the rod. The locking knob can be movable between an unlocked position wherein the rod is freely translatable along the first rod opening to locate the roller at different locations relative to the output member, and a lock position wherein the rod is fixed relative to the tool accessory housing.