Adjustable Handle Position Marking for Portable Working Machines

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Solution Overview

Problem

Existing portable working machines face difficulties in returning the handle to its original position and angle after changes during storage or transport.

Innovation Solution

A working machine with a handle that includes a fixing mechanism and markers to indicate position and angle, allowing for precise repositioning and angle adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the handle position is adjusted during storage or transport, then the handle can be repositioned for different operational needs, but the handle cannot be returned to the original position accurately

Engineering Contradiction:
Improvehandle repositioning capabilityVSAvoidposition reproduction accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by providing reference marks on both the handle and the connecting portion before the handle is repositioned. These marks indicate the original position and angle, enabling the operator to return the handle to its initial state accurately after adjustment during storage or transport.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses visual markers (reference marks) on the handle and connecting portion to indicate position and angle. These marks provide visual feedback to the operator, enabling precise reproduction of the original handle configuration after repositioning.

Inventive Principle:
Principle #32Color changes

2Stability of the object's composition

If the handle is fixed tightly to the connecting portion, then the handle position is stable during operation, but the handle cannot be adjusted or repositioned easily

Engineering Contradiction:
Improvehandle position stabilityVSAvoidhandle adjustability
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent applies dynamics by designing the fixing mechanism to be adjustable rather than permanently fixed. The handle can be loosened for repositioning and tightened for stable operation, allowing the system to transition between adjustable and fixed states based on operational requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The fixing mechanism serves multiple functions: it allows the handle to be adjusted during operation, enables repositioning during storage and transport, and provides stable fixation during use. The reference marks system simultaneously supports both adjustment and position reproduction functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4681526A1Working machine
Publication Date: 2026.01.21 YAMABIKO CORP
  • EP4681526A1 patent drawingFigure 1
  • EP4681526A1 patent drawingFigure 2
  • EP4681526A1 patent drawingFigure 3

AI summary

According to an aspect of the present disclosure, there is provided a working machine including: a working portion; a main body portion; a connecting portion; and an operation portion, the working portion being connected to the main body portion via the connecting portion, the operation portion including a handle, and a fixing mechanism that fixes the handle to the connecting portion, and the handle including a marker that indicates a position and an angle relative to the connecting portion.