Front-to-Frame Fastening Structure for Stable High Front Mounting

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Solution Overview

Problem

Existing devices for connecting fronts to frames, particularly those with high overall heights, face stability issues and are often limited to specific frame types, making them unreliable and difficult to mount securely.

Innovation Solution

A fastening device with at least two vertically arranged fastening units that connect the front and frame at multiple interfaces, featuring operative connection means such as coupling members and adjustable elements, allowing for secure attachment and easy detachment, regardless of frame type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single central hanging element is used to connect the front to the frame, then the device is simple in structure, but stability problems arise when connecting high fronts to the frame

Engineering Contradiction:
Improvestructure simplicityVSAvoidconnection stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The fastening device is divided into multiple fastening units (at least two) arranged vertically along the front height. Each fastening unit independently connects the front to the frame at different vertical positions, distributing the mechanical load and significantly improving connection stability for high fronts while maintaining reasonable structural complexity through modular design

Inventive Principle:
Principle #1Segmentation

2Reliability

If fastening units are arranged at multiple vertical positions, then connection stability is improved, but the number of fastening operations increases

Engineering Contradiction:
Improveconnection stabilityVSAvoidfastening time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

Multiple fastening units are mechanically coupled through coupling members (such as coupling rods) that connect the fastening elements across different vertical positions. This allows a single fastening operation to simultaneously engage multiple fastening units, achieving stable multi-point connection while minimizing the time and effort required for installation

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If the fastening device is designed for specific frame types, then the fastening mechanism can be optimized, but adaptability to different frame types is reduced

Engineering Contradiction:
Improvefastening mechanism optimizationVSAvoidframe type compatibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The fastening device incorporates adjustable fastening units with coupling members that can accommodate various frame geometries and mounting positions. The modular design with standardized interfaces allows the same fastening mechanism to be adapted to different frame types (hollow chamber frames, solid frames, etc.) while maintaining optimized fastening performance through adjustable positioning and universal coupling principles

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

Data Source

PatentEP2747599B1Device for connecting a front to a frame
Publication Date: 2016.06.29 GRASS GMBH
  • EP2747599B1 patent drawingFigure 1~2
  • EP2747599B1 patent drawingFigure 3~4
  • EP2747599B1 patent drawingFigure 5

AI summary

In a device for connecting a front (12) to a frame (13), having a fastening device (14) via which the front (12) and the frame (13) can be fastened to each other, the fastening device (14) has two fastening units (15a, 15b) located one above the other in the vertical direction of the front (12), via which the front (12) and frame (13) can be fastened to each other at two fastening interfaces (17a, 17b) spaced apart from each other in the vertical direction.