Oscillating Tool Clamp Assembly with Lever-Locked Open Position
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Solution Overview
Problem
Existing oscillating tools lack an efficient mechanism for easily switching between closed and open positions of the clamp assembly, making it difficult to insert or remove accessories without manual effort and without secure holding in the closed position.
Innovation Solution
An oscillating tool design featuring a clamp assembly with a sliding and fixed clamp configuration, an actuating lever, and a locking lever, where the actuating lever moves the clamp assembly between closed and open positions, and the locking lever maintains the open position, allowing for easy accessory insertion and secure holding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual clamp assembly is used without an actuating mechanism, then the device complexity is reduced, but the ease of operation deteriorates as users must manually effort to switch between closed and open positions
Solution Approach 1:
The clamp assembly incorporates an actuating lever that transforms the static manual clamping mechanism into a dynamic system. The lever enables easy transition between closed and open positions through leveraged mechanical motion, while the locking lever provides dynamic locking/unlocking functionality. This dynamic mechanism resolves the contradiction by providing effortless operation through leveraged motion while maintaining manageable device complexity through straightforward mechanical linkages.
2Reliability
If a simple clamp assembly is used without a locking mechanism, then the device complexity is reduced, but the reliability deteriorates as the clamp cannot securely hold the accessory in the closed position
Solution Approach 1:
The locking lever is designed to engage automatically when the clamp assembly is in the closed position, providing preliminary locking action without requiring additional user steps. This preliminary automatic engagement ensures reliable accessory holding while minimizing the added complexity by using a simple lever that integrates with the existing clamp mechanism rather than requiring a separate complex locking system.
3Ease of operation
If the actuating lever is positioned remote from the clamp lever, then the ease of operation is improved as the user can easily access the actuator, but the device complexity increases due to the connection mechanism required
Solution Approach 1:
A connector strip serves as an intermediary element between the remotely positioned actuating lever and the clamp lever. This simple flat connector transmits the actuating force effectively across the distance, enabling easy user access to the actuator while maintaining manageable device complexity through the use of a straightforward connecting element rather than a complex linkage system.
Data Source
AI summary
An oscillating tool includes a housing, a motor housed in the housing and a clamp assembly operatively driven by the motor in an oscillating motion. The clamp assembly can hold an accessory such as a blade or sanding attachment, and the clamp assembly includes a first clamp and a second clamp. The oscillating tool also includes a clamp lever and an actuating lever. The clamp lever is operatively coupled to the first clamp to move the first clamp such that clamp assembly is moved from a closed position to an open position. The actuating lever is operatively coupled to the clamp lever to effect movement of the clamp lever, movement of the clamp lever causing the clamp assembly to move from the closed position to the open position.