Bowden Cable Furniture Hinge Ejection With Hidden Force Transmission
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Solution Overview
Problem
Existing furniture mechanisms with pivotable parts require complex and expensive transmission mechanisms, which take up space and are aesthetically undesirable, for moving furniture parts from a closed to an open position.
Innovation Solution
The use of a Bowden cable for force transmission between the ejection device and the loading device, combined with an adjusting body and contour for smooth loading and unloading of the force storage element, and a locking device like a tilting lever for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex transmission mechanisms are used for force transmission, then reliable force transmission is achieved, but device complexity and space consumption increase
Solution Approach 1:
The patent replaces complex mechanical transmission mechanisms with a Bowden cable system. The Bowden cable uses a flexible outer casing containing a tensile force-transmitting core, allowing force transmission through bends and complex paths without requiring traditional mechanical linkages, direction-changing devices, or intermediate panels.
Solution Approach 2:
The Bowden cable employs a flexible outer casing that is compression-resistant in the tensile direction. This flexible shell allows the cable to bend and follow complex routing paths while maintaining structural integrity and force transmission capability, eliminating the need for rigid mechanical transmission components.
2Reliability
If complex transmission mechanisms are used, then force transmission is achieved, but space consumption increases
Solution Approach 1:
The patent substitutes bulky mechanical transmission mechanisms with a compact Bowden cable system. The cable's flexible construction allows it to transmit forces through tight spaces and complex paths without requiring the volume-consuming direction-changing devices or intermediate panels of traditional mechanisms.
Solution Approach 2:
The Bowden cable transmits force in multiple spatial dimensions by bending in three-dimensional space. The flexible cable can route forces around obstacles and through complex geometries by utilizing vertical, horizontal, and diagonal paths, effectively reducing the projected footprint of the transmission system.
3Reliability
If complex transmission mechanisms are used, then force transmission is achieved, but aesthetic appearance deteriorates
Solution Approach 1:
The patent replaces visible complex mechanical transmission mechanisms with a concealed Bowden cable system. The flexible cable can be routed through grooves, channels, or hidden pathways within the furniture structure, making the force transmission mechanism invisible or minimally visible from the exterior.
Solution Approach 2:
The patent extracts the transmission mechanism from the visible exterior domain and relocates it to hidden interior spaces. The Bowden cable is positioned within grooves or structural elements that conceal it from external view, separating the functional mechanism from the aesthetic surface.
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 space usage, allows for a compact and aesthetically pleasing design, enabling smooth and gentle transitions between loading and non-loading states, and facilitates easy operation of furniture parts without visible components.
Implementation Method 1
a Bowden cable (6) for transmitting force upon loading of the at least one force storage means (4) is arranged between the at least one ejection device (3) and the loading device (5)
Implementation Method 2
at least one force storage means (4), and a loading device (5) for loading the at least one force storage means (4)
Data Source
AI summary
An arrangement for moving a movable furniture part, in particular a furniture part which is mounted pivotably about an axis, includes at least one ejection device for ejecting the movable furniture part from a closed position into an open position, and the at least one ejection device includes at least one force accumulator. The arrangement further includes a loading device for loading the at least one force accumulator by an opening or closing movement of the movable furniture part. At least one Bowden cable for transmitting force during the loading of the at least one force accumulator is arranged between the at least one ejection device and the loading device.