Drawer Guide Damping with One Middle-Rail End-Position Unit
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Solution Overview
Problem
Existing pull-out guides for furniture require multiple end-position damping units to achieve damping in both closing and opening movements, leading to material wastage, high costs, and a non-compact design.
Innovation Solution
A pull-out guide with a single end-position damping unit featuring a driver fork with mutually engaged activators on the body and running rails, allowing for damping in both directions, along with optional self-closing or self-extracting mechanisms, and a compact design facilitated by the damping unit's placement on the middle rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two end-position damping units are used to achieve damping in both closing and opening movements, then damping performance is improved, but material consumption and cost increase
Solution Approach 1:
The single end-position damping unit is designed with a driver fork that can interact with both the body rail and running rail activators, enabling one damping unit to perform the function of two separate damping units by damping both closing and opening movements in both end positions
Solution Approach 2:
The patent combines the functions of two separate end-position damping units into a single integrated damping unit with a driver fork that engages with activators on both rails, merging multiple damping functions into one component to reduce material consumption
2Reliability
If two end-position damping units are used to achieve damping in both closing and opening movements, then damping performance is improved, but device complexity increases
Solution Approach 1:
The driver fork is designed as a universal component that can engage with activators on both the body rail and running rail, allowing a single damping unit to handle both closing and opening movements, thereby reducing device complexity while maintaining damping performance
Solution Approach 2:
The patent merges two separate damping units into one integrated unit with a driver fork that performs multiple damping functions, simplifying the overall device structure while achieving the required damping performance in both end positions
3Reliability
If two end-position damping units are used to achieve damping in both closing and opening movements, then damping performance is improved, but the design becomes less compact
Solution Approach 1:
The patent combines two separate damping units into a single compact damping unit with a driver fork that engages with activators on both rails, reducing the overall space occupation while maintaining the ability to dampen both closing and opening movements
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 solution reduces material and cost requirements while enabling effective damping in both end positions, allowing for a more compact and efficient design by utilizing a single damping unit.
Implementation Method 1
an end position damping unit (200) with a driver fork (204), with the first and the second activator (12, 32) being mutually engaged with the driver fork (204) in such a way that the driver fork (204) is in engagement with the first activator (12) in a first end position and with the second activator (32) in a second end position
Implementation Method 2
it is known to provide pull-out guides with a closing damper. Such closing dampers are often combined with a retraction mechanism through which a piece of furniture, for example a drawer, retracts into the closed position
Data Source
AI summary
The invention relates to a drawer guide for a movable furniture part, in particular a drawer, having a body rail (10), a center rail (20) and a runner rail (30) and an end position dampening unit (200). The drawer guide is characterized in that the end position dampening unit (200) is arranged on the center rail (20), wherein a first activator (12) directly or indirectly on the body rail (10) and a second activator (32) directly or indirectly on the runner rail (30) are arranged such that the first activator (120 engages with the end position dampening unit (200) in an end position and the second activator (32) engages therewith in an additional end position of the drawer guide.