Sheet Metal Holding Devices for Sliding Door Guide Stability
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Solution Overview
Problem
Existing guide assemblies for sliding doors or folding sliding doors are unstable due to the design of holding devices, which are supported only by a single contact area on the guide rail, leading to detachment issues when forces are applied, and the use of casting methods results in high material usage and low stability.
Innovation Solution
The guide assembly incorporates sheet metal bent parts for the holding devices, allowing for adaptable design, easy production, and multiple contact points with the guide rail to prevent detachment, along with a catch mechanism for secure fastening, enabling stable positioning and easy installation/deinstallation of the screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If holding devices are produced by injection-molding or die-casting methods, then manufacturing is simplified, but the holding devices have large material usage and low stability of load-bearing structures
Solution Approach 1:
The holding device transitions from a cast plastic component to a sheet metal component, changing the material parameter from plastic to metal. This enables thinner walls and less material usage while maintaining or improving strength and stability of the load-bearing structure.
2Ease of manufacture
If holding devices are produced by injection-molding or die-casting methods, then manufacturing is simplified, but the load-bearing structure stability is low
Solution Approach 1:
Changing the material from cast plastic to sheet metal fundamentally alters the mechanical properties, providing higher strength-to-weight ratio and better load-bearing capacity while maintaining structural stability.
Solution Approach 2:
The sheet metal bent part introduces a new dimensional approach by forming three-dimensional structural shapes through bending, creating load-bearing structures that are both stable and material-efficient.
3Ease of operation
If holding devices have single contact area with guide rail, then installation is simple, but the screen can detach when sliding door is moved or loaded
Solution Approach 1:
The holding device is segmented into multiple contact points along the guide rail, distributing the load across several locations. This segmentation prevents detachment by ensuring that failure at one contact point does not compromise the entire attachment.
Solution Approach 2:
The sheet metal bent part creates a three-dimensional contact interface with the guide rail, establishing multiple contact points in different spatial locations rather than a single planar contact area, thereby improving attachment reliability.
Data Source
AI summary
A guide assembly is provided for guiding a sliding door or folding sliding door relative to a stationary furniture part. The guide assembly includes a guide rail to be secured on the stationary furniture part; a guide device having a running mechanism to be moveably mounted on the guide rail and having a fastening device for securing the guide device on the sliding door or folding sliding door; and at least two holding devices, each having an installing section for allowing mounting of the holding devices on a frame and a catch mechanism. The holding devices can be secured on the guide rail by the catch mechanism, and at least one, preferably both, of the at least two holding devices has a sheet metal bent part, preferably formed of the sheet metal bent part.