Bonded Pull-Out Guide Profile for Higher Rigidity

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Solution Overview

Problem

Strip-shaped profiles for pull-out guides face challenges in achieving high stability while maintaining compact geometry and minimizing material usage, especially in lateral direction, which affects their ability to absorb loads and resist deformation.

Innovation Solution

The solution involves fixing at least one edge section of a metal strip to an adjacent section using a non-detachable connection, such as gluing, welding, or reshaping, to increase rigidity and allow for reduced material thickness, thereby enhancing the profile's ability to absorb loads and resist torsional loads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the material thickness of the strip-shaped profile is increased to ensure adequate lateral stability, then the lateral stability is improved, but the mass and material costs increase

Engineering Contradiction:
Improvelateral stabilityVSAvoidmass
Core Design Contradiction:
Stability of the object's compositionVSWeight of stationary object

Solution Approach 1:

The strip-shaped profile is segmented into multiple sections (edge sections and adjacent sections) that are materially bonded together. This segmentation allows each section to contribute to the overall lateral stability while using thinner individual sections, reducing total material usage and mass compared to a single thick-section profile.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The profile uses a composite structure where multiple metal strip sections are materially bonded together to form a composite profile. This composite construction achieves high lateral stability through the combined effect of multiple bonded sections rather than relying on increased thickness of a single section, thereby reducing mass and material costs.

Inventive Principle:
Principle #40Composite materials

2Strength

If the material thickness of the strip-shaped profile is increased to prevent deformation under load, then the rigidity is improved, but the material costs and mass increase

Engineering Contradiction:
ImproverigidityVSAvoidmaterial usage
Core Design Contradiction:
StrengthVSQuantity of substance

Solution Approach 1:

The profile is divided into multiple sections that are materially bonded together. This segmentation creates a composite structure where the combined rigidity of bonded sections exceeds that of a single section of equivalent total material, achieving high rigidity with reduced material usage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple metal strip sections are materially bonded to form a composite profile structure. This composite construction achieves superior rigidity through the synergistic effect of bonded sections, allowing the use of thinner individual sections and reducing overall material consumption while maintaining or enhancing rigidity.

Inventive Principle:
Principle #40Composite materials

3Strength

If a non-detachable connection is used to fix edge sections to adjacent sections, then the rigidity and load-absorbing capacity are improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveload-absorbing capacityVSAvoidmanufacturing complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The manufacturing process merges the bending and fixing operations into an integrated continuous flow process. The metal strip is bent into the desired cross-section and immediately materially bonded in the same production line, combining multiple operations without requiring separate assembly steps, thereby managing manufacturing complexity while achieving high load-absorbing capacity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention replaces traditional mechanical fastening methods (such as screws or clips) with material bonding processes (such as welding, adhesive bonding, or diffusion bonding). This substitution eliminates the need for additional mechanical fastening components and assembly steps, reducing manufacturing complexity while achieving superior rigid connections with high load-absorbing capacity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Stability of the object's composition

If the profile geometry is modified to increase lateral stability, then the stability is improved, but the installation space increases

Engineering Contradiction:
Improvelateral stabilityVSAvoidinstallation space
Core Design Contradiction:
Stability of the object's compositionVSArea of stationary object

Solution Approach 1:

The profile uses a composite structure of materially bonded sections that achieves high lateral stability through the bonding mechanism rather than through increased geometric dimensions. This allows the profile to maintain a compact cross-sectional area and minimal installation space while attaining the required lateral stability through the combined effect of bonded sections.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The invention changes the structural parameters of the profile by introducing material bonding between sections rather than relying solely on geometric parameters (such as increased thickness or larger cross-section). This parameter change enables the achievement of high lateral stability with a compact geometry that requires minimal installation space.

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 approach results in a more stable and rigid strip-shaped profile that can absorb higher loads with reduced material usage, maintaining stability while minimizing mass and installation space, and can be effectively manufactured using existing systems with minimal increase in cycle time.

Implementation Method 1

the at least one edge section is partially glued to the adjacent section

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Implementation Method 2

the sections can also be welded to one another in certain areas

Methodology Applied
Scientific EffectWelding: Welding

Implementation Method 3

the at least one edge section and the adjacent section are fixed at least in regions by reshaping

Methodology Applied
Scientific EffectPlastic deformation: Plasticity

Data Source

PatentEP2303067B1Pull-out guide
Publication Date: 2013.10.23 PAUL HETTICH GMBH & CO KG
  • EP2303067B1 patent drawingFigure 1A~1B
  • EP2303067B1 patent drawingFigure 2A~2B
  • EP2303067B1 patent drawingFigure 3~4

AI summary

A strip-like profile (1,1', 1", 1' ", 1" ") for a pull-out guide is formed from a bent metal strip, wherein bent portions (2, 4, 5, 6, 8, 9, 10, 14, 15) are provided in a central region of the metal strip in order to form at least one running path (25) for rolling bodies which are arranged between edge portions (6, 10) of the metal strip. According to the invention, at least one edge portion (6, 10) of the metal strip is fixed to an adjacent portion (2) of the metal strip. As a result, the rigidity of the profile can be improved in an effective manner. The invention also relates to a pull-out guide with a profile of this type and to a method for producing said profile.