Battery Holder Opening Layout for Easy Tool Battery Removal

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Solution Overview

Problem

Existing electric working machines require complex mechanisms, such as switches and spring members, to facilitate easy battery removal, which complicates the design and functionality.

Innovation Solution

A simple configuration featuring a battery holding portion with a first opening for insertion and a second opening positioned away from the battery's front end, allowing easy removal by applying a force through the second opening, thereby eliminating the need for additional mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a special mechanism such as a switch and a spring member is used to facilitate removal of the battery, then the battery can be easily removed, but the device complexity increases

Engineering Contradiction:
Improvebattery removalVSAvoidmechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts the battery removal function from a complex mechanical mechanism and implements it through a simple opening structure. The second opening provides direct access to the battery, allowing users to remove it by simply pushing through the opening without requiring switches, spring members, or other complex components.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The battery holding portion is segmented into multiple openings: a first opening for battery insertion and a second opening for battery removal. This segmentation allows independent access paths for different operations, enabling simple battery removal through the second opening while maintaining secure holding through the first opening's structure.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If a simple configuration is used for battery holding, then the device complexity is reduced, but the ease of battery removal deteriorates

Engineering Contradiction:
Improveconfiguration simplicityVSAvoidbattery removal
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The battery holding portion is divided into multiple functional openings: the first opening maintains secure battery holding with minimal structure, while the second opening provides dedicated access for removal. This segmentation achieves both simple configuration and easy removal functionality simultaneously.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second opening acts as an intermediary structure that facilitates battery removal without requiring complex mechanisms. It provides a direct access path that mediates between the user's removal action and the battery, enabling easy removal while keeping the overall configuration simple.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4215314A1Electric working machine
Publication Date: 2023.07.26 YAMABIKO CORP
  • EP4215314A1 patent drawingFigure 1
  • EP4215314A1 patent drawingFigure 2
  • EP4215314A1 patent drawingFigure 3

AI summary

The present invention provides a simple configuration to facilitate removal of the battery. According to an aspect of the present invention, an electric working machine is provided. The electric working machine comprises an electric working portion and a main body portion. The electric working portion is configured to operate by electric power supplied from a battery. The main body portion includes a battery holding portion having a holding space for inserting the battery in an insertion direction and holding the battery. The battery holding portion includes a plurality of openings including a first opening through which the battery passes when inserted and a second opening provided at a position that is separated from a front end of the battery held in the holding space in the insertion direction.