Pivoting Anchor Snap Mechanism to Prevent Turnover Under Load

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Solution Overview

Problem

Anchor devices with a connecting part that pivots about a swivel axis are prone to turning over under load, especially when loaded transversely, leading to potential damage from load peaks.

Innovation Solution

A snap mechanism is introduced that generates a braking force opposing the pivoting movement before a snap position and reduces it behind the snap position, preventing the connecting part from assuming a dangerous position by rejecting it from the snap position, and incorporating a spring arrangement to enhance the braking and restoring forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the connecting part is allowed to pivot freely about the swivel axis, then the device has good adaptability and ease of operation, but the connecting part may turn over under load causing damage

Engineering Contradiction:
Improvepivoting capabilityVSAvoidstability under load
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The snap mechanism applies preliminary counter-action by generating a braking force that opposes the pivoting movement before the connecting part can reach the dangerous snap position. This preventive braking force acts in advance to stop the connecting part from turning over, thus resolving the contradiction between allowing free pivoting for adaptability and preventing turnover for reliability.

Inventive Principle:
Principle #9Preliminary anti-action

2Reliability

If a snap mechanism with braking force is introduced to prevent turnover, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improveprevention of turnoverVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The snap mechanism merges the braking function with the existing pivoting connection structure. The braking force is generated through the interaction between the connecting part and the base part at the snap position, combining the pivoting capability and the preventive braking function into a single integrated mechanism rather than adding a separate complex braking system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The snap mechanism utilizes the existing structural elements of the anchor device (base part and connecting part) to generate the braking force. The braking action arises from the geometric relationship and interaction between existing components during pivoting, rather than requiring external braking components, thus maintaining simplicity while improving reliability.

Inventive Principle:
Principle #25Self-service

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 snap mechanism effectively prevents the connecting part from turning over, reducing the risk of damage by increasing the required drive force to reach the snap position and providing a holding force to fix the part in place, thus ensuring stability and safety.

Implementation Method 1

a spring arrangement (42) which, in particular in the case of an arrangement on the base part side, at least partially encompasses the base part (2) or, in particular in the case of an arrangement on the connecting part side, at least partially encompasses the connecting part (6)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the braking force can have a friction force as a component, whereby the friction force is generated by friction

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12031571B2Anchor device with snap mechanism
Publication Date: 2024.07.09 RUD KETTENFABRIK RIEGER & DIETZ GMBH & CO
  • US12031571B2 patent drawing
  • US12031571B2 patent drawing
  • US12031571B2 patent drawing

AI summary

An anchor device (1) with a base part (2) for attachment to an object (10), such as a load or a loading surface. The anchor device (1) has a connecting part (6) which is held on the base part (2) and can be pivoted relative to the base part about a swivel axis (4). The base part (2) has a bearing surface (8) for contact with the object. A snap mechanism (29), which has at least one snap position (30) along a pivoting movement (28) of the connecting part about the swivel axis, is provided. The snap mechanism generates a braking force (32) in the direction of the pivoting movement in front of the snap position which is reduced in the direction of the pivoting movement behind the snap position.