Tip Tool Clamp Retention for Hands-Free Bit Release
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Solution Overview
Problem
The existing electric tools with mountable and removable tip tools require manual user intervention to maintain the engaging member at the releasing position, leading to manageability issues during tip tool mounting and removal.
Innovation Solution
An electric tool design featuring a clamp that switches between mounting and releasing states, utilizing a clamp moving portion, urging portion, retaining portion, and operation portions to automatically retain the clamp in the releasing state, allowing easy attachment and detachment of the tip tool without continuous user operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the engaging member is not retained at the releasing position, then the structure is simpler, but the manageability during tip tool mounting deteriorates
Solution Approach 1:
The retaining portion automatically retains the clamp moving portion at the releasing position without requiring continuous user operation. The system serves itself by using the mounting operation portion to trigger automatic retention, eliminating the need for manual intervention to maintain the releasing position.
Solution Approach 2:
The retaining portion is designed to automatically engage and retain the clamp moving portion at the releasing position before the actual mounting operation begins. This preliminary retention action prepares the system for easy tip tool mounting without requiring continuous user effort.
2Device complexity
If the user must keep pressing down the knob to retain the engaging member at the releasing position, then the retaining mechanism is simpler, but the operational efficiency deteriorates
Solution Approach 1:
The retaining portion automatically maintains the clamp moving portion at the releasing position without requiring continuous user operation. The system self-regulates the retention state, freeing the user to perform other tasks while preparing for tip tool mounting.
Solution Approach 2:
The manual continuous pressing action is replaced by an automatic mechanical retention mechanism. The retaining portion uses mechanical engagement (such as a detent or latch mechanism) to automatically hold the clamp moving portion, substituting the need for continuous manual force application.
3Ease of operation
If the clamp moving portion is automatically retained at the releasing position, then the manageability improves, but the device complexity increases
Solution Approach 1:
The retaining portion is merged with the existing case structure rather than being a separate independent component. The mounting operation portion is integrated into the clamp assembly, combining multiple functions into unified structures to minimize overall device complexity while achieving automatic retention.
Solution Approach 2:
The case structure serves multiple functions: it provides structural housing, contains the clamp mechanism, and incorporates the retaining portion. The mounting operation portion also serves dual purposes by both mounting the tip tool and triggering the retention mechanism, reducing the need for separate dedicated components.
Data Source
AI summary
Included are: a clamp configured to switch between a mounting state in which a tip tool is mounted and a releasing state in which the tip tool is removed; a clamp moving portion configured to move between a first position at which the clamp is in the mounting state and a second position at which the clamp is in the releasing state; a clamp urging portion configured to urge the clamp moving portion to the first position; a case accommodating at least a part of each of the clamp, the clamp moving portion, and the clamp urging portion; a retaining portion configured to retain the clamp moving portion at the second position; and a mounting operation portion configured to receive mounting operation for switching the clamp from the releasing state to the mounting state. When the mounting operation portion receives the mounting operation, the retaining portion cancels retaining of the clamp moving portion at the second position.