Retractable Wall Hanging Device With Integrated Level And Marking Points

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Solution Overview

Problem

Existing methods for hanging multiple items on a wall using multiple hooks often struggle with accurately spacing and leveling the hooks, leading to uneven or angled installations.

Innovation Solution

An adjustable wall hanging device featuring a retractable measuring tape with a built-in level and sliding points for marking precise anchor points, ensuring even spacing and leveling, which can be compactly stored and extended for easy use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple spaced hooks are used to hang items on a wall, then the hanging capacity is increased, but the difficulty of setting accurate spacing and leveling increases

Engineering Contradiction:

Improvehanging capacityVSAvoidspacing and leveling accuracy

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent combines multiple functions into a single device: a measuring tape for spacing, a level for leveling, and marking points for positioning. This integrated tool allows users to simultaneously achieve accurate spacing and leveling when installing multiple hooks, resolving the contradiction between increased hanging capacity and ease of operation.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The device performs preliminary measurement and leveling actions before the actual hook installation. By pre-determining the exact positions and levels of multiple hooks using the integrated tool, users can install hooks accurately in one attempt, eliminating the need for multiple adjustment attempts.

Inventive Principle:

Principle #10Preliminary action

2Volume of moving object

If a retractable measuring tape is used, then the device can be compactly stored, but the tape may bend under its own weight affecting measurement accuracy

Engineering Contradiction:

Improvestorage compactnessVSAvoidmeasurement accuracy

Core Design Contradiction:

Volume of moving objectVSMeasurement precision

Solution Approach 1:

The patent applies different structural qualities to different parts of the measuring tape. The tape is made rigid or reinforced in the measurement section to prevent bending during use, while remaining flexible enough to retract into the compact storage case. This local differentiation resolves the contradiction between compact storage and measurement accuracy.

Inventive Principle:

Principle #3Local quality

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 device provides precise and level markings for hanging anchors, ensuring items are hung straight and level, offering a simple and effective solution for accurate wall installations.

Implementation Method 1

this linear element is a length of common retractable tape measure

Methodology Applied

Scientific EffectElastic memory: Elasticity

Implementation Method 2

The device also has a level slider 14 with a built-in level 16 so that the puncture dimples can be leveled

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentUS8225520B2Expandable leveler

Publication Date: 2012.07.24 RABIN JARED

AI summary

An adjustable hanging device for hanging frames, shelves, mirrors, etc., comprising a linear element having thereon a pair of spaced sliders, each slider having a point thereon to enable a spot to be marked on a wall, and a level mounted on the linear element for facilitating leveling of the device so that the item to be mounted will be level, the linear element being retractable into a storage case.