Wall Anchor Slide Tool for Fastening and Release

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Solution Overview

Problem

Existing tools for fastening and releasing wall anchors often require multiple tools, risk surface damage due to improper tool usage, and struggle with difficult removal of abandoned anchors.

Innovation Solution

A single tool with a slide housing, handle, and levers that pivotally connect to a slide, allowing for both fastening and releasing operations by displacing the slide between positions to grip and push the wall anchor's centre screw and collar, facilitated by springs for idle reversion and sharp edges for easy insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single tool is used for both fastening and releasing wall anchors, then device complexity is reduced and productivity is improved, but the tool must perform multiple functions which increases design complexity

Engineering Contradiction:
Improveoperation efficiencyVSAvoidtool structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The tool is designed with a single body that performs both fastening and releasing functions through a movable slide mechanism. The slide can be positioned to either grip and pull the center screw (fastening mode) or grip and push the center screw (releasing mode), allowing one tool to replace multiple specialized tools.

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

Solution Approach 2:

The tool incorporates a movable slide that can be repositioned along the tool body using levers. This dynamic reconfiguration allows the same tool structure to adapt between fastening and releasing operations, enabling multi-functionality without requiring separate fixed tools for each operation.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If improper tool usage or rotation of the centre screw occurs, then surface damage may occur, but using a single integrated tool reduces the risk of improper usage

Engineering Contradiction:
Improvesurface damageVSAvoidoperation safety
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The tool introduces an intermediary mechanism (the movable slide with gripping elements) between the operator and the wall anchor. This intermediary controls the force application and prevents direct manual manipulation that could cause surface damage or screw rotation, thereby protecting the wall surface while maintaining operational reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The tool design incorporates features that prevent harmful actions before they occur. The slide mechanism is designed to grip the center screw securely, preventing unintended rotation. The tool body structure guides force application to avoid surface damage, implementing preventive measures built into the tool's operation.

Inventive Principle:
Principle #9Preliminary anti-action

3Adaptability or versatility

If the slide is displaceable between multiple positions, then the tool can perform both fastening and releasing operations, but the mechanism becomes more complex

Engineering Contradiction:
Improveoperation versatilityVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tool is segmented into distinct functional components: a fixed tool body, a movable slide, and levers for actuation. The slide itself is segmented with different gripping ends for fastening and releasing operations. This segmentation allows each component to have a specific function while working together to achieve versatility without excessive overall complexity.

Inventive Principle:
Principle #1Segmentation

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

Enables efficient, single-tool operation for both fastening and releasing wall anchors, minimizing surface damage and simplifying the process, while ensuring firm grip and easy insertion.

Implementation Method 1

said means being a spring arranged to exert a restoring force on the slide to return the slide to its initial position

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a first lever pivotally connected to the handle and arranged to displace the slide in the slide housing between a first position and a second position

Methodology Applied
Scientific EffectLever: Lever

Data Source

PatentEP4351837B1Tool for fastening and releasing a wall anchor
Publication Date: 2026.01.28 KORSHAMN TOR
  • EP4351837B1 patent drawingFigure 1
  • EP4351837B1 patent drawingFigure 2
  • EP4351837B1 patent drawingFigure 3

AI summary

A wall anchor fastening and releasing tool comprising a tool body forming a slide housing, a handle rigidly projecting from the slide housing, a slide arranged inside the slide housing, and a first lever pivotally connected to the handle and arranged to displace the slide in the slide housing between a first position and a second position, wherein, when the first lever is in the first position, a screw gripping end of the slide is adjacent a first housing end, and wherein, when in the second position, the screw gripping end of the slide is retracted in the slide housing and a screw pushing end of the slide is adjacent a second housing end, the screw gripping end of the slide being arranged to grip underneath a head of a wall anchor centre screw, and the second housing end being arranged to grip underneath a wall anchor collar.