Adjustable Sander Handle for Ergonomic Positioning
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Solution Overview
Problem
Existing sanders have limited usability due to restrictive movement of their movable handles, which hinders user convenience and efficiency, especially in accommodating left- and right-handed users.
Innovation Solution
The sander design incorporates a side handle that can be adjusted steplessly in a 360-degree range and positioned arbitrarily, featuring a mounting band and grip part connected through a threaded structure, allowing secure attachment and detachment, thereby enhancing user posture and working efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the side handle is fixed in position, then the structure is simple and reliable, but the usability is limited and cannot accommodate different user preferences
Solution Approach 1:
The side handle is designed to be movable rather than fixed, allowing it to rotate around the barrel and be positioned at different angles. This dynamic capability enables left-handed and right-handed users to adjust the handle to their preferred position, significantly improving usability without requiring a completely different tool for each user type.
Solution Approach 2:
The side handle is divided into separable components including a handle holder that can be detached from the barrel and a grip that can be adjusted relative to the holder. This segmentation allows the handle to be reconfigured for different users and even completely removed if not needed, providing flexibility while maintaining structural simplicity when the handle is not being adjusted.
2Adaptability or versatility
If the side handle allows only linear movement, then the structure remains relatively simple, but the versatility is insufficient for accommodating different user preferences
Solution Approach 1:
The side handle mechanism transitions from linear movement only to include rotational movement around the barrel. The handle holder can rotate 360 degrees around the barrel's central axis, allowing the grip to be positioned at any angle. This dynamic rotational capability provides full adaptability for different user preferences while maintaining a relatively simple cylindrical rotation mechanism rather than complex multi-axis adjustment systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The adjustable side handle improves user convenience and working efficiency by allowing customizable positioning, accommodating both left- and right-handed users and reducing the number of components, while maintaining secure attachment and ease of use.
Implementation Method 1
featuring a mounting band and grip part connected through a threaded structure
Data Source
AI summary
It is an object of the invention to improve usability of a sander. The sander includes a rotary working surface (105), a driving mechanism that is disposed above the rotary working surface (105) in a direction of the rotation axis of the rotary working surface (105) and rotationally drives the rotary working surface (105), a cylindrical housing (103) that houses the driving mechanism, and a movable handle (117) that is mounted on a surface of a cylindrical part of the cylindrical housing (103). The movable handle (117) can be turned around the central axis of the cylindrical housing (103) and can be fixed at an arbitrary position in a circumferential direction of the cylindrical housing (103).