Furniture Damper Spring Compression for Compact Sealing
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Solution Overview
Problem
Conventional furniture fittings with dampers face space constraints due to the nature of springs and projections, limiting their use in smaller furniture applications, as they occupy significant space and restrict the range of movement of the seal.
Innovation Solution
A furniture hinge with a damper that utilizes a spring compressed to its cross-sectional thickness, allowing for increased damping travel and volume compensation, eliminating the need for space-consuming projections by using a conical spring and sealing device to facilitate smoother damping and reduced overall height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a spring with projections is used to guide the seal, then the seal can be guided stably, but the device occupies significant space and the seal's range of movement is limited
Solution Approach 1:
The invention removes the projections from the base plate and seal, extracting the space-consuming elements while maintaining seal guidance through an alternative mechanism. The spring alone guides the seal without requiring additional projection structures, thereby reducing the overall damper volume while preserving guidance stability.
Solution Approach 2:
The invention changes the dimensional arrangement by allowing the spring to extend beyond the base plate in a vertical dimension, eliminating the need for horizontal projection structures. This dimensional reorganization reduces the footprint and overall volume of the damper while maintaining the guidance function.
2Length of moving object
If the spring is compressed to its cross-sectional thickness, then more damping travel is achieved with the same size, but the spring must be designed as a conical spring with specific compression characteristics
Solution Approach 1:
The invention employs a conical spring with asymmetric geometry, where the coil diameter varies along the length of the spring. This asymmetric design allows the spring to compress to its cross-sectional thickness while maintaining structural integrity and providing the necessary damping travel, transforming a complex requirement into a geometric solution.
Solution Approach 2:
The invention changes the physical parameters of the spring by using a conical shape with varying coil diameter rather than a uniform cylinder. This parameter change enables the spring to achieve maximum compression ratio while maintaining guidance stability and providing sufficient damping travel within the constrained space.
3Reliability
If projections are used on the base plate and seal, then the spring can be held securely, but the overall height of the sealing device increases
Solution Approach 1:
The invention extracts the projections from both the base plate and seal, eliminating the vertical elements that increase overall height. The spring is retained and secured through alternative means that do not require projection structures, thereby reducing the sealing device height while maintaining spring retention reliability.
Solution Approach 2:
Instead of using projections to hold the spring, the invention inverts the approach by having the spring itself provide the retention function through its anchoring arrangement, eliminating the need for additional projection structures that would increase the overall height of the sealing device.
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
The solution provides enhanced damping performance with increased damping travel and reduced size, making it suitable for smaller furniture applications without compromising on spring loading advantages, ensuring efficient operation within limited spaces.
Implementation Method 1
a spring (26) arranged between the first and the second stop element, by which the relative position of the piston (22) relative to the fluid chamber (21) can be adjusted in a ready position remote from the end position
Implementation Method 2
as a result of a relative movement of the stop elements, the spring is compressed or expanded and the stop elements, which are movably mounted relative to one another, are returned to their starting position
Implementation Method 3
The damping effect is created by the resistance that opposes the fluid movement through the through-openings, as in a conventional fluid damper
Data Source
AI summary
The invention relates to a furniture damper (9) for damping a movement of a movably mounted part (3) of a piece of furniture or a movably mounted component of a furniture fitting, comprising a piston (22) arranged in a fluid chamber (21), a damping action being carried out by a relative movement between the fluid chamber (21) and the piston (22), in addition to a sealing device for sealing the fluid chamber (21), said sealing device comprising a first abutment element (27) and a second abutment element (28) that is movably mounted in relation to the first abutment element (27) and designed to seal the fluid chamber (21). A spring (26) is arranged between the first abutment element (27) and the second abutment element (28), said spring (26) being compressible by the relative movement of the first abutment element (27) and the second abutment element (28) essentially up to the thickness of the cross-section of the spring.