One-Piece Guide Slider for Lifting Sliding Door

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Solution Overview

Problem

Existing lifting/sliding door systems face complex assembly and insecure fastening issues due to the two-part guide slider design, where the guide part attached to the vertical pillar can only screw into plastic material, leading to potential screw tear-out under high loads.

Innovation Solution

A one-piece guide slider with a cylindrical base and upwardly projecting guide pin that attaches to the upper horizontal bar of the door, allowing screws to protrude into metal reinforcement for secure attachment, and can be designed with various shapes to facilitate assembly and lateral support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a two-part guide slider design is used, then the guide can be assembled from separate components, but the assembly becomes very complex and the fastening becomes insecure

Engineering Contradiction:

Improveguide slider assemblyVSAvoidguide slider assembly

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines the guide part and the attachment base into a single integrated guide slider component. This merging eliminates the complexity of assembling multiple parts while maintaining the functional advantages of both the guide portion and the attachment portion, directly resolving the contradiction between ease of manufacture and device complexity.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If the guide part is attached to the vertical pillar using screw connection in plastic material, then the assembly is simple, but the screws can tear out under high loads

Engineering Contradiction:

Improveattachment methodVSAvoidfastening security

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The guide slider is designed as a composite structure combining a plastic attachment base optimized for screw fastening with a metal guide portion for mechanical strength. This composite design allows the plastic base to provide simple attachment while the metal guide ensures reliability under load, resolving the contradiction between ease of manufacture and fastening security.

Inventive Principle:

Principle #40Composite materials

3Reliability

If a one-piece guide slider is used, then the attachment is secure and rigid, but the manufacturing may be more difficult

Engineering Contradiction:

Improveattachment securityVSAvoidguide slider production

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The one-piece guide slider is manufactured as a composite component combining plastic and metal materials in a single molding process. This approach achieves secure and rigid attachment through the integrated design while managing manufacturing complexity through advanced composite molding techniques, resolving the contradiction between attachment security and ease of manufacture.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentEP1916374B1Lifting and sliding door with sliding guide

Publication Date: 2012.01.18 PROFINE GMBH

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AI summary

The door (1) has a frame case (2) provided with a horizontal running guidance profile (3), where the guidance profile has a guiding groove (4) for guiding a guiding glider (5). A base of the guiding glider is rigidly fastened to an upper-horizontal bar, and a guide pin (12) of the guiding glider intervenes horizontally and vertically and swivelable in the guiding groove of the guidance profile. The upper horizontal bar is provided with a reinforcing profile i.e. metal reinforcement, and the guiding glider is bolted with the reinforcing profile.