Rotary Power Tool Auxiliary Handle Mounting for Better Control
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Solution Overview
Problem
Existing rotary power tools, such as core drills, lack ergonomic design features that allow for versatile handle positioning, leading to user discomfort and reduced control during operation.
Innovation Solution
A rotary power tool design featuring a housing with multiple mounting points for an auxiliary handle, allowing it to be attached at various positions along the rotational axis and offset from it, along with a handle holder that can be secured in different rotational orientations, enhancing user grip options and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single fixed handle position is used in rotary power tools, then the device structure is simple, but user comfort and control are reduced
Solution Approach 1:
The housing is equipped with multiple mounting points that can accommodate auxiliary handles in different positions and orientations. This universal mounting system allows a single tool to serve multiple ergonomic configurations, enabling one device to adapt to different user preferences and task requirements without requiring multiple specialized tools.
Solution Approach 2:
The handle mounting system transitions from a fixed configuration to a dynamic, adjustable configuration. Users can reposition the auxiliary handle between different mounting points during operation or between tasks, allowing the tool to adapt its ergonomics dynamically based on the specific operational context and user needs.
2Adaptability or versatility
If multiple mounting points are added for auxiliary handles, then user grip options and control are enhanced, but the device complexity increases
Solution Approach 1:
The multiple mounting points create a universal interface system where the same mounting structure serves multiple functions: different positions along the rotational axis, different radial locations, and different rotational orientations. This allows a single mounting system to provide versatile handle positioning without requiring separate mechanisms for each position.
Solution Approach 2:
The mounting system is segmented into discrete mounting points distributed at different locations on the housing. This segmentation allows independent selection of optimal mounting positions while maintaining a unified structural integration within the housing, enabling versatility without proportionally increasing overall complexity.
Data Source
AI summary
A power tool includes a housing, a motor, a spindle, a handle holder and an auxiliary handle. The housing includes a motor housing portion, a drive housing, and a mounting portion between the motor housing portion and the drive housing. The motor is located within the motor housing portion. The spindle is configured to rotate about a rotational axis in response to torque received from the motor. The handle holder is coupled to the drive housing and defines a first mounting point, and the mounting portion defines a second mounting point. The auxiliary handle is selectively attachable to each of the first and second mounting points, and the first mounting point is located at a first position along the rotational axis, and the second mounting point is located at a second position offset from the first position in a direction along the rotational axis.