Furniture Fitting With Linear Guide Device
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Solution Overview
Problem
Existing furniture fittings with complex joint mechanisms are prone to increased material and production costs, susceptibility to contamination and defects, and compromise the smooth surface appearance when a swivel element covers a side wall.
Innovation Solution
A guide device with a linearly movable management element connected via a third joint axis, which reduces the complexity of the joint mechanism to three joint axes, allowing the swivel element to cover the side wall seamlessly and providing stabilization and vertical load allowance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex joint mechanism with at least five joint axes is used, then the pivoting element can be mounted movably relative to the stationary support, but the material requirements and manufacturing effort increase, leading to higher costs
Solution Approach 1:
The patent extracts and eliminates unnecessary joint axes from the mounting mechanism. By reducing from five joint axes to three joint axes, the invention removes redundant components while maintaining the essential mounting functionality, thereby reducing material requirements and manufacturing complexity
Solution Approach 2:
The mounting mechanism is segmented into essential functional components only. The three joint axes are strategically positioned to provide all necessary degrees of freedom for the pivoting element, eliminating the need for additional segmented components that would increase complexity
2Reliability
If a complex joint mechanism with at least five joint axes is used, then the pivoting element can be mounted movably relative to the stationary support, but the susceptibility to contamination and defects increases
Solution Approach 1:
By extracting and removing two joint axes from the mechanism, the patent reduces the number of moving parts and potential contamination points. The simplified three-axis mechanism has fewer seals, bearings, and articulation points that could be affected by contamination
Solution Approach 2:
Instead of adding more joint axes to ensure reliability, the invention inverts the approach by reducing the number of joint axes to three, demonstrating that fewer components can achieve the same or better reliability by minimizing failure points
3Shape
If the pivoting element covers the end face of the side wall, then a smooth surface is achieved when viewed from the front, but the fitting complexity increases
Solution Approach 1:
The patent removes unnecessary joint axes and intermediate components from the fitting mechanism, reducing it to three essential joint axes. This simplification maintains the ability to achieve smooth surface coverage while eliminating redundant complexity
Solution Approach 2:
The three joint axes are designed to perform multiple functions simultaneously: enabling the pivoting element to cover the end face for smooth appearance, providing stable mounting, and allowing necessary movements. This multi-functionality eliminates the need for additional specialized components
Data Source
Figure 1a~1b
Figure 2
Figure 3a~3b
AI summary
Fitting (1) for movably mounting a pivoting element (101), in particular a furniture part, a door or a window, relative to a stationary carrier (102), comprising: - a first fitting part (2), which is arranged or can be arranged on a stationary carrier (102), - a second fitting part (3), which is arranged or can be arranged on a pivoting element (101), wherein the first fitting part (2) and the second fitting part (3) are designed to be movable, preferably pivotable, relative to each other, - at least one articulated lever (4), which is connected in an articulated manner to the first fitting part (2) via a first hinge pin (2a) and is connected in an articulated manner to the second fitting part (3) via a second hinge pin (3c), - wherein a guide device (5) is provided, wherein the guide device (5) is mounted linearly displaceably on or in one of the two fitting parts (2, 3) and is connected in an articulated manner to the other of the two fitting parts (2, 3) via a third hinge pin (5a), wherein the third hinge pin (5a) is designed separately and at a distance from the first hinge pin (2a) and/or the second hinge pin (3c), wherein at least two, preferably exactly two, articulated levers (4) are provided, wherein the at least two articulated levers (4) are in each case connected in an articulated manner to the first fitting part (2) via the first hinge pin (2a) and are connected in an articulated manner to the second fitting part (3) via the second hinge pin (3c).