Adjustable angle tool

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Solution Overview

Problem

Existing scrapers have a fixed angle between the tool head and the handle, making it difficult to operate in special scraping environments or narrow spaces, which affects efficiency and effectiveness.

Innovation Solution

An adjustable angle tool with a handle, a tool head pivotally connected to the handle, and a positioning device that includes a positioning member and biasing members. The positioning member is detachably engaged with positioning portions on the tool head, allowing the relative angle between the tool head and the handle to be adjusted.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the tool head and handle are connected with a fixed structure, then the manufacturing is simple and structure is stable, but the adaptability to different scraping environments is poor

Engineering Contradiction:
Improveadaptability to scraping environmentsVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tool head is pivotally connected to the handle, allowing the angle between them to be dynamically adjusted. The positioning device includes a positioning member with multiple positioning portions that can engage with corresponding portions on the handle at different angles, enabling the tool to adapt to various scraping environments while maintaining structural stability when positioned.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The positioning device is segmented into multiple components including a positioning member, biasing member, and multiple positioning portions. This segmentation allows independent adjustment of the tool head angle while keeping the rest of the tool structure intact, resolving the contradiction between adaptability and structural simplicity.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the angle between tool head and handle is fixed, then the device complexity is low, but the ease of operation in narrow spaces is poor

Engineering Contradiction:
Improveease of operation in narrow spacesVSAvoidpositioning device complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The pivotal connection between tool head and handle enables dynamic angle adjustment, allowing users to easily operate in narrow spaces by adjusting the tool head angle to suit the specific workspace constraints.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The biasing member automatically biases the positioning member to engage with the corresponding positioning portion, providing self-locking functionality without requiring additional complex mechanisms or manual intervention to maintain the adjusted angle.

Inventive Principle:
Principle #25Self-service

3Productivity

If the tool head angle is adjustable, then the productivity in various scraping environments is improved, but the device complexity increases

Engineering Contradiction:
Improvescraping operation efficiencyVSAvoidpositioning device complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The adjustable angle mechanism allows the tool to be quickly reconfigured for different scraping tasks, improving productivity in various environments while using a relatively simple pivotal connection and positioning device.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The tool allows change of the geometric parameter (angle) between tool head and handle to optimize scraping performance for different environments, achieving improved productivity through parameter adjustment rather than requiring multiple different tools.

Inventive Principle:
Principle #35Parameter changes

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

The adjustable angle tool allows for precise adjustment of the tool head's angle relative to the handle, enhancing operational efficiency and effectiveness in various scraping environments.

Implementation Method 1

The positioning member is configured to be biased by the at least one biasing member along the first direction

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS20250196314A1Adjustable angle tool
Publication Date: 2025.06.19 HONG ANN TOOL INDS
  • US20250196314A1 patent drawing
  • US20250196314A1 patent drawing
  • US20250196314A1 patent drawing

AI summary

An adjustable angle tool comprises a handle, a tool head, and a positioning device. The handle extends along a first direction. The tool head is pivotally connected to the handle and is provided with a plurality of first positioning portions. The positioning device includes a positioning member and at least one biasing member. The positioning member is configured to be biased by the at least one biasing member along the first direction and detachably engaged with one of the plurality of first positioning portions to adjust a relative angle between the tool head and the handle.