Angled Battery Interface for Bush Cutter Grip Stability
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Solution Overview
Problem
Conventional bush cutters require users to grip the operating rod during battery pack attachment and detachment, leading to slipping issues due to dust and moisture, making the process cumbersome, especially since the battery pack slides parallel to the central axis of the operating rod.
Innovation Solution
The bush cutter design angles the battery pack interface's sliding direction relative to the operating rod's central axis, preventing hand slippage by positioning the battery pack interface at an angle of 45 degrees or more, and arranging the operating rod and battery pack interface on opposite sides to stabilize the tool during attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the battery pack slides parallel to the central axis of the operating rod, then the structure is simple and compact, but the user's hand is likely to slip on the operating rod during attachment and detachment
Solution Approach 1:
The battery pack interface is positioned at an angle (45 degrees or more) relative to the central axis of the operating rod, creating an asymmetric configuration. This angular arrangement ensures that when the user grips the operating rod and applies force during battery pack attachment or detachment, the force vector does not align with the gripping hand's contact point, thereby preventing hand slippage while maintaining structural simplicity
2Reliability
If the battery pack interface is positioned at an angle of 45 degrees or more relative to the operating rod axis, then hand slippage is prevented, but the device complexity increases
Solution Approach 1:
The battery pack interface is positioned at an angle (45 degrees or more) relative to the central axis of the operating rod, creating an asymmetric configuration. This angular arrangement ensures that when the user grips the operating rod and applies force during battery pack attachment or detachment, the force vector does not align with the gripping hand's contact point, thereby preventing hand slippage while maintaining structural simplicity
3Stability of the object's composition
If the operating rod and battery pack interface are arranged on opposite sides, then the bush cutter stability is improved, but the device complexity increases
Solution Approach 1:
The battery pack interface is positioned at an angle (45 degrees or more) relative to the central axis of the operating rod, creating an asymmetric configuration. This angular arrangement ensures that when the user grips the operating rod and applies force during battery pack attachment or detachment, the force vector does not align with the gripping hand's contact point, thereby preventing hand slippage while maintaining structural simplicity
Data Source
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AI summary
A bush cutter comprises an operating rod, a cutting unit disposed at a front end of the operating rod, a main unit disposed at a rear end of the operating rod and a transfer shaft disposed within the operating rod. The cutting unit rotatably supports a cutting blade. The main unit houses a motor that drives the cutting blade. The main unit is provided with a battery pack interface configured to slidably receive a battery pack for supplying electric power to the motor. A direction in which the battery pack slides in the battery pack interface is angled with respect to an central axis of the operating rod. According to this configuration, a user can easily attach and detached the battery pack.