Furniture Rail Guide Damping Structure for Wear and Precise Closure
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Solution Overview
Problem
Existing guide devices for movable furniture parts, such as drawers, suffer from wear issues due to frequent impact against end stops, leading to the need for frequent replacement of components like roller carriages with dampers.
Innovation Solution
The guide device features a rail guide with two guide sections connected by a damping section equipped with a flexible damper, positioned between the sections rather than at the front, and a locking mechanism that engages with the damping section to block flexibility, reducing wear and ensuring a defined closed position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a damper is installed on the front side of the roller carriage to dampen impact against the end stop, then the impact is damped, but the damper and roller carriage suffer wear from frequent impact
Solution Approach 1:
The patent introduces a rail guide with guide sections connected by a damping section as an intermediary element between the roller carriage and the end stop. This rail guide absorbs and distributes the impact forces through its damping section, preventing direct transmission of impact to the roller carriage and end stop, thereby reducing wear on all components while maintaining impact protection
Solution Approach 2:
The rail guide is segmented into multiple guide sections connected by a damping section. This segmentation allows the impact force to be distributed across multiple points and the damping section to flexibly absorb energy, reducing the concentration of stress and wear on any single component including the roller carriage
2Object-affected harmful factors
If a damper is installed to dampen impact, then impact is reduced, but the furniture part cannot adopt a defined closed position due to damper flexibility
Solution Approach 1:
The rail guide incorporates a locking mechanism that can dynamically transition between locked and unlocked states. When locked, it provides a defined closed position by preventing movement of the guide sections relative to each other. When unlocked, it allows the damping section to flex and absorb impact, thus achieving both precise positioning and impact protection
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 design reduces wear and allows for a defined closed position of the furniture part by distributing the impact across the damping section, thereby extending the lifespan of the guide device and maintaining a precise closure.
Implementation Method 1
a spring element which is mounted on the one hand on one guide section and on the other hand on the other guide section of the rail guide
Implementation Method 2
a damper to damp the impact of the rail guide on at least one of the stops
Data Source
AI summary
A guide device for guiding a furniture part movable relative to a furniture body comprises: a guide unit including a body rail fixable to the furniture body; a sliding rail connectable to the movable furniture part and displaceably mounted relative to the body rail via a rail guide movable in a sliding direction, wherein the rail guide is mounted displaceably relative to the body rail and the one sliding rail and, when withdrawn to an open position, abuts against stops on the body rail and sliding rail; and a damper to damp the impact of the rail guide on at least one of the stops. The rail guide comprises at least two guide sections arranged behind one another in the sliding direction. The guide sections are connected to one another by a damping section that is flexible in the sliding direction and equipped with the damper.