Wall Mounting Hook Carriage with Pivoting Lock

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Solution Overview

Problem

Existing devices for attaching objects to walls require precise alignment and complex mechanisms, making it difficult to easily fix and remove objects like guitars or screens, especially when using multiple hook-shaped elements, which can be cumbersome and prone to accidental re-engagement.

Innovation Solution

The device incorporates a pivoting and sliding carriage mechanism that allows the second hook-shaped element to be locked in a detached position, enabling easy engagement and disengagement without the need for precise alignment, and includes a pulling element to facilitate removal, along with an elongated edge for flexible positioning and a tension spring for defined displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the second hook-shaped element is made slidable to allow easy detachment, then the ease of operation is improved, but the risk of accidental re-engagement increases

Engineering Contradiction:
Improveease of detachmentVSAvoidaccidental re-engagement risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The locking means (spring element and cam surface) proactively prevents accidental re-engagement by maintaining a disengagement state. The spring element biases the second hook-shaped element away from the wall element, creating a preliminary counter-action that stops unintended connection before it can occur.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The carriage acts as an intermediary mechanism between the second hook-shaped element and the wall element. It controls the engagement and disengagement process through its interaction with the cam surface, mediating the connection state and preventing direct accidental re-engagement of the hook with the wall.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If multiple hook-shaped elements are used to secure heavy objects, then the strength is improved, but the device complexity increases

Engineering Contradiction:
Improveholding capacityVSAvoidnumber of components
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The carriage merges multiple functions into a single component: it guides the second hook-shaped element, provides the locking mechanism through interaction with the cam surface, and controls the engagement sequence. This consolidation reduces the number of separate parts while maintaining the strength provided by multiple hook elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The carriage serves multiple purposes: it acts as a guide for the second hook-shaped element, provides locking functionality through the cam surface interaction, and enables controlled disengagement. This multi-functionality reduces overall device complexity while supporting the use of multiple hook elements for enhanced strength.

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

3Manufacturing precision

If precise alignment is required for hook engagement, then the manufacturing precision is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improvealignment toleranceVSAvoidinstallation difficulty
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The carriage is designed to move dynamically during engagement, transitioning from a retracted position to an extended position as the second hook-shaped element engages with the wall element. This dynamic movement compensates for alignment variations, allowing engagement without precise initial positioning while maintaining manufacturing precision standards.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The engagement process utilizes parameter changes in the carriage position and orientation. As the carriage moves along the cam surface, its position parameters change to accommodate slight misalignments, enabling successful engagement without requiring high precision in the initial positioning of the hook elements.

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

This solution simplifies the attachment and detachment process, allowing for easy handling of heavy or large objects with reduced risk of accidental re-engagement, and enables flexible positioning of objects on the wall without requiring precise alignment, resulting in a more user-friendly and straightforward design.

Implementation Method 1

a tension spring (23) which extends between the pivot axis (21) and the sliding axis (22) and which exerts a restoring force on the carriage (14)

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2083208B1Device, for securing an object to a wall, as well as a wall element and a support element that are suitable for such a device
Publication Date: 2011.06.15 VOGELS HLDG BV
  • EP2083208B1 patent drawingFigure 1
  • EP2083208B1 patent drawingFigure 2A
  • EP2083208B1 patent drawingFigure 2B

AI summary

The device (1) has a wall element (2) for mounting at a wall and a supporting element (8) for mounting an object. The supporting element is provided at a side with a hook-shaped element (13), which is mounted at a receiving element (4) in a drive. The receiving is provided in the wall element. The device is provided with a blocking element for blocking another hook-shaped element in a blocking position, which is detached from the wall element.