Angled Wrench Drivers for Uneven Surface Operation
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Solution Overview
Problem
Conventional wrenches face difficulties in operating workpieces with uneven surfaces due to restricted operating angles and ranges, leading to discomfort and potential injury from improper handling.
Innovation Solution
A wrench design featuring a handle with integrally connected drivers at angled positions, including a hollow tube-shaped second driver with teeth, allowing for comfortable grip and adaptable operation on uneven surfaces through strategically positioned angles and embossed prevention of hand slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional wrench has a main body with two drive portions extending horizontally from two ends, then the structure is simple and easy to manufacture, but the operating angle and applicable range are confined when working on devices with uneven surfaces
Solution Approach 1:
The patent applies asymmetry by setting the driving axes of the first and second drivers at different angles relative to the central axis of the handle. Specifically, the angle between the driving axis of the first driver and the central axis is different from the angle between the driving axis of the second driver and the central axis. This asymmetric angular configuration allows the wrench to adapt to workpieces at various orientations and on uneven surfaces, thereby improving operating angle and applicable range without requiring multiple separate tools.
2Ease of operation
If a conventional wrench has horizontal drive portions, then the structure is straightforward, but the user cannot hold the wrench comfortably and may be injured due to improper holding gesture
Solution Approach 1:
The patent applies local quality by providing embossed portions at specific locations on the handle, namely at the two ends and at the middle of the handle. These embossed portions create localized grip-enhancing features that allow the user to hold the wrench comfortably and securely in multiple positions. The embossed portions increase friction and prevent slippage, thereby improving ease of operation and reducing the risk of injury from improper holding gestures.
Data Source
AI summary
A wrench includes a handle, a first driver, and a second driver. The first driver and the second driver are integrally connected to two ends of the handle respectively. An angle between a driving axis of the first driver and a central axis of the handle is α, an angle between one opening end of the first driver and the handle is φ, an angle between a driving axis of the second driver and the central axis of the handle is β, and an angle between one opening end of the second driver and the handle is θ. The angle α and the angle β are located at two sides of the central axis of the handle respectively. The other opening end of the first driver and the other opening end of the second driver are horizontally connected to the handle respectively.