Cordless Fastening Tool Battery Layout for Better Standing Stability
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Solution Overview
Problem
Existing cordless fastening tools, such as nail guns, suffer from poor stability when standing due to the battery pack's support center being closer to the rear and the center of gravity of the gas structure being closer to the front, leading to instability.
Innovation Solution
The cordless fastening tool is designed with a battery pack mounting portion that allows the battery pack to be mounted along a second direction perpendicular to the firing direction, thereby reducing the battery pack's dimension along the firing direction and improving stability. Additionally, the grip extends along a third direction, forming a plane with the firing direction, and the battery pack is configured to have a larger support length in the left and right direction, enhancing stability in the standing state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery pack is mounted along the firing direction (first direction), then the battery pack can be easily installed and removed, but the support center of the battery pack is closer to the rear while the center of gravity of the gas structure is closer to the front, resulting in poor stability when standing
Solution Approach 1:
The battery pack mounting direction is changed from the first direction (firing direction) to the second direction, which is perpendicular to the first direction. This dimensional change repositions the battery pack along the left-right axis rather than the front-rear axis, moving the support center forward to align with the center of gravity, thereby improving standing stability while maintaining ease of installation and removal.
2Use of energy by moving object
If the battery pack dimension along the firing direction is large, then the battery pack can accommodate sufficient power components, but the support center is closer to the rear causing instability
Solution Approach 1:
The battery pack's dimensional distribution is redistributed by mounting it perpendicular to the firing direction. Instead of extending along the first direction, the battery pack now extends primarily along the second direction (left-right axis), with its support surface positioned to align with the center of gravity. This maintains adequate power capacity while achieving optimal stability.
3Stability of the object's composition
If the battery pack is positioned with larger support length in the left and right direction, then stability when standing is improved, but the battery pack mounting structure becomes more complex
Solution Approach 1:
The battery pack mounting portion is designed to provide multiple functions: it secures the battery pack in the perpendicular orientation, positions the support surface at the correct location to align with the center of gravity, and facilitates easy installation and removal. This integrated design achieves improved stability without significantly increasing structural complexity.
Data Source
AI summary
A cordless fastening tool includes a housing; a magazine configured to accommodate fasteners; a firing device configured to guide the fasteners along a first direction; a battery pack; and a battery pack mounting portion connected to the housing and configured to detachably support the battery pack. The battery pack is configured to be mounted to the battery pack mounting portion along a second direction perpendicular to the first direction.