Garden Tool Handle with Rotating Connecting Part
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Solution Overview
Problem
Garden tools used for pulling are typically physically straining and lack ergonomic design, making them difficult to use effectively, especially in outdoor conditions and when targeting awkward areas like inner corners, outer angles, or stairs.
Innovation Solution
A garden tool with a handle and tool part attachment system that allows for adjustable angles between the handle and tool part, enabling optimal direction selection and ergonomic use through a rotating connecting mechanism, which can be adjusted up to 360°, facilitating versatile use on various surfaces including roofs and ground levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the handle is fixed at a rigid angle to the tool part, then the structure is simple and strong, but the tool cannot be adapted to different work positions and awkward targets
Solution Approach 1:
The handle attachment structure is made dynamic by allowing the connecting part to rotate around its axial direction within the sleeve. This rotation capability enables the handle to adapt to different work positions and awkward targets while maintaining a relatively simple structural design. The dynamic adjustment allows the tool to reach inner corners, outer angles, and stairs without requiring complex multi-component attachment mechanisms.
2Adaptability or versatility
If the tool part is set far away from the worker's body to reach awkward targets, then the versatility improves, but the work position becomes unergonomic and physically straining
Solution Approach 1:
The dynamic rotation capability of the connecting part allows the handle to be repositioned ergonomically even when the tool part is extended to reach awkward targets. The user can rotate the handle around the axial direction of the connecting part to maintain a comfortable grip position, reducing physical strain while accessing difficult areas.
Solution Approach 2:
The solution adds rotational freedom in another dimension (rotation around the axial direction of the connecting part) to the existing linear extension capability. This allows the handle to be positioned in multiple orientations, enabling ergonomic grip positions even when the tool part is extended far from the worker's body to reach awkward targets.
3Strength
If the handle structure is made rigid and fixed, then the durability and strength are improved, but the ability to adjust to different work stages is reduced
Solution Approach 1:
The connecting part is designed with rotational freedom around its axial direction while maintaining structural strength through the sleeve connection. This dynamic element allows the handle to adjust to different work stages and positions without compromising the overall durability and strength of the tool. The rotation mechanism is integrated into a robust structural framework that withstands outdoor work conditions.
Data Source
AI summary
In the presented solution, a garden tool includes a handle and a tool part, which handle is attached to the tool part to constitute a pulling handle. Then, the garden tool is mainly used by pulling from its handle. The handle includes an operating part which is grabbed when using the garden tool and a connecting part to attach the handle to the tool part. Between the operating part and the connecting part, there is an angle such that the axial direction of the operating part differs from the axial direction of the connecting part. The connecting part is further attached into connection with the tool part such that the connecting part is able to rotate around its axial direction in relation to the tool part.