Adjustable Clamp Fitting for Glass Pane Thickness Adaptation

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Solution Overview

Problem

Existing clamp fittings for glass panes face challenges in adaptability to different thicknesses, with limited adjustability and requiring multiple spacer sets or low-force clamping screws, which restrict their usability across various pane thicknesses.

Innovation Solution

A clamp fitting design featuring adjustable coupling legs with interlocking tooth profiles and an angled bore web for enhanced stability and adjustability, allowing for secure attachment to panes of varying thicknesses using a central retaining screw and clamping screws with fine threads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a clamping screw is used to brace meshing teeth, then the connection can be assembled, but the screw can only withstand low forces and cannot support the weight of a disc

Engineering Contradiction:
Improveclamping forceVSAvoidclamping screw structure
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The clamping mechanism is divided into two functional parts: coupling legs for positioning and clamping plates for force transmission. The coupling legs with interlocking teeth provide the primary structural support and positioning, while the clamping plates transmit the clamping force directly to the pane edge, eliminating the need for a weak clamping screw to bear the disc weight.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The coupling legs feature asymmetric interlocking teeth with different engagement directions. The teeth are designed to engage in a specific orientation that provides both positioning and load-bearing capacity, allowing the structure to withstand forces much greater than a standard clamping screw could support.

Inventive Principle:
Principle #4Asymmetry

2Adaptability or versatility

If spacers are used to adjust the distance between clamping plates, then different pane thicknesses can be accommodated, but multiple spacer sets must be kept ready for every possible pane thickness

Engineering Contradiction:
Improvepane thickness adjustmentVSAvoidmultiple spacer sets
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The coupling legs are designed with movable and adjustable positioning capabilities. The distance between the clamping plates can be dynamically adjusted by repositioning the coupling legs along the pane edge, allowing a single clamp fitting to adapt to various pane thicknesses without requiring multiple fixed spacer sets.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The coupling legs serve multiple functions: they provide structural support, enable positioning adjustment for different thicknesses, and facilitate the interlocking mechanism. This multi-functionality eliminates the need for separate spacer components for each thickness variation.

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

3Ease of manufacture

If an access hole is provided in the outer profile for the clamping screw, then the screw can be installed, but the same outer profile cannot be used for different pane thicknesses

Engineering Contradiction:
Improveprofile standardizationVSAvoidpane thickness compatibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The access hole requirement is extracted from the outer profile design. Instead of incorporating an access hole in the standardized profile, the assembly method allows the coupling legs to be positioned and interlocked first, with the clamping plates then securing the pane edge. This eliminates the need for profile modifications while maintaining adaptability.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP2080862B1Clamp fitting
Publication Date: 2017.11.15 GEZE GMBH
  • EP2080862B1 patent drawingFigure 1~2a
  • EP2080862B1 patent drawingFigure 2b~2c
  • EP2080862B1 patent drawingFigure 3~4

AI summary

The clamp fitting (1) comprises two opposite clamping plates (3,8) with a border area of a disk (2), and are held in a clamped manner. The clamping plates have a coupled leg (4,9) in each case, where the clamping plates are extended, so that the coupled legs are connected by overlapping in multiple positions.