Chainsaw Battery Mount Layout for Easier Battery Removal
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Solution Overview
Problem
Conventional electric chain saws face difficulties in easily removing the battery from the battery attachment part during charging, which can lead to increased effort and potential strain on the device.
Innovation Solution
The electric power work device incorporates a mechanism where the rear part of the top handle is pushed down, causing the body case to move downward relative to the battery, allowing the battery to be easily removed from the attachment part, and includes a battery attachment part behind the top handle, reducing the load on the body case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the battery is made larger to increase power capacity, then the power capacity is improved, but the ease of removing the battery from the attachment part deteriorates
Solution Approach 1:
The device is divided into separable components: the battery attachment part and the battery itself. The attachment part includes a guide member with a groove that guides battery removal, allowing the battery to be easily detached despite its large size. This segmentation enables independent optimization of battery capacity and removal mechanism.
Solution Approach 2:
A guide member acts as an intermediary between the battery attachment part and the battery. The guide member includes a groove that provides a physical pathway and mechanical assistance for removing the battery, mediating the interaction between the user and the large battery to facilitate easy removal.
2Duration of action of moving object
If the battery is pushed up during charging, then the charging process is improved, but the ease of removing the battery deteriorates
Solution Approach 1:
The guide member and groove provide a dynamic removal mechanism that adapts to the battery's position. When charging, the battery is pushed up into the attachment part. When removal is needed, the guide member allows smooth extraction by providing a controlled pathway, enabling the system to transition between charged and removed states easily.
3Power
If the battery attachment part is positioned behind the top handle, then the power distribution is improved, but the load on the body case increases
Solution Approach 1:
The battery attachment part is extracted from the main body case and positioned separately behind the top handle. This separation allows the attachment part to bear its own load independently, reducing the burden on the body case while maintaining optimal power distribution to the cutting unit.
Data Source
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AI summary
An electric power work device (1) simplifies a mechanism of a battery attachment part (12) and easily removes a battery (90) from the battery attachment part. A chain saw includes a body case (10), a cutting part (a work tool) (20), and the battery. A battery removal mechanism for removing the battery is provided on a rear part of the body case. The battery removal mechanism (15) includes a lower end of the battery and a bottom surface of the body case. The lower end of the battery protrudes downward from the bottom surface of the body case, and a frontmost end of a lower part of the battery is disposed in front of a rear end of a lower part of a top handle. Another battery removal mechanism includes a protrusion on the bottom surface of the body case and in front of the lower end of the battery.