Floating Battery Holder for Gas Combustion Driving Tool
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Solution Overview
Problem
Gas combustion type driving tools with detachable battery packs face issues of vibration-induced electrical contact failures and potential battery pack falling during striking movements, which existing technologies have not adequately addressed.
Innovation Solution
A battery pack is attached to a floating battery holder supported by elastic materials, reducing vibration and impact transmission, and positioned to slide in a cross direction relative to the striking direction, ensuring stable electrical contact and preventing unintended falling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery pack is rigidly attached to the tool main body, then the electrical connection is stable, but the vibration and impact during striking movements cause electrical contact failures and potential battery pack detachment
Solution Approach 1:
The patent applies beforehand cushioning by introducing an elastic member between the battery holder and the tool main body before vibration or impact occurs. This elastic member pre-positioned in the attachment structure absorbs the shock and vibration generated during striking movements, preventing electrical contact failures and battery pack detachment while maintaining reliable electrical connection.
2Device complexity
If the battery pack is attached in the striking direction, then the structure is simple, but the vibration and impact forces directly affect the battery pack attachment
Solution Approach 1:
The patent applies another dimension by changing the battery pack attachment direction from the striking direction to a direction perpendicular to the striking direction. This dimensional change positions the battery holder such that vibration and impact forces during striking movements do not directly affect the battery pack attachment, thereby maintaining attachment stability while keeping the structure relatively simple.
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
This configuration effectively absorbs vibrations and impacts, maintaining reliable electrical contact and preventing battery pack falling, thus enhancing the durability and operational stability of the driving tool.
Implementation Method 1
the vibration or the impact as a force of reaction caused by a striking movement at the tool main body side is absorbed by the elastic material
Implementation Method 2
the vibration or the impact as a force of reaction caused by a striking movement at the tool main body side is absorbed by the elastic material
Implementation Method 3
a battery holder supported in a floating state with regard to the tool main body via an elastic material
Data Source
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AI summary
A gas combustion type driving tool is provided with a battery pack for supplying power to an electric motor for rotating a gas combustion stirring fan and to an ignition plug etc. Previously, a large vibration or impact caused by a striking movement might generate chattering at battery contacts or induce the battery pack to fall off unintentionally. The present invention provides a driving tool that does not have such a problem. The vibration or the impact of the tool main body may be blocked by the support of the battery holder (52) via elastic materials (53, 54) in a floating state at the rear end portion side in a feed direction of the driven-members-housing magazine (40) and by the attachment of the battery pack (51) to this battery holder (52).