Door Closer Hydraulic System for Multi-Position Mounting
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Solution Overview
Problem
Existing door closers require multiple variants for different installation positions, leading to increased maintenance, production, and storage efforts, as well as space and cost issues due to overlapping hydraulic connections and fastening receptacles.
Innovation Solution
A door closer design with a hydraulic system featuring a first and second channel, each with a regulating valve, arranged in separate planes within the housing, allowing for adjustable closing properties and secure fastening without the need for multiple variants, enabling installation in various positions with reduced space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple variants of door closers are provided for different installation positions, then adaptability to various installation positions is improved, but device complexity and production costs increase
Solution Approach 1:
The door closer is designed with a universal housing structure that can be installed in multiple positions (lintel, door leaf, hinge side, non-hinge side) without requiring different variants. The housing contains integrated fastening receptacles and hydraulic components arranged to function correctly in any installation position, making the door closer adaptable to all positions while maintaining a single design.
Solution Approach 2:
The patent arranges fastening receptacles and hydraulic channels in three-dimensional space within the housing to avoid overlap and interference. By strategically positioning components in different spatial dimensions and orientations, the door closer achieves multi-position adaptability without requiring multiple variants, as the same housing configuration works regardless of installation orientation.
2Ease of operation
If fastening receptacles are arranged in the housing, then ease of installation is improved, but hydraulic connections may overlap with fastening receptacles causing reliability issues
Solution Approach 1:
The housing is designed with fastening receptacles and hydraulic channels positioned in different spatial dimensions and orientations. The fastening receptacles are arranged on the housing surface or in recesses, while hydraulic channels are routed through internal passages, ensuring that the two systems do not overlap or interfere with each other, thus maintaining both ease of installation and fastening reliability.
Solution Approach 2:
The housing structure is segmented into distinct functional zones: fastening receptacles are positioned in specific areas for secure mounting, while hydraulic channels are routed through separate internal passages. This spatial segmentation prevents interference between mechanical fastening and hydraulic connections, ensuring both systems function reliably without overlap.
3Volume of moving object
If hydraulic channels are routed through the housing, then compact design is improved, but fastening receptacles cannot be advantageously positioned
Solution Approach 1:
The housing utilizes three-dimensional spatial arrangement to accommodate both compact hydraulic channels and optimally positioned fastening receptacles. Hydraulic channels are routed through internal passages and recesses, while fastening receptacles are positioned on the external surface or in dedicated mounting areas, allowing both systems to coexist in a compact design without compromising fastening position.
Solution Approach 2:
The hydraulic channels are nested within the housing structure, utilizing internal cavities and passages, while fastening receptacles are positioned on the outer surface or in dedicated mounting zones. This nesting arrangement allows the hydraulic system to be integrated compactly within the housing volume while maintaining advantageous positioning of fastening receptacles for secure installation.
4Reliability
If the housing is made larger to prevent overlap, then reliability is improved, but space requirements and costs increase
Solution Approach 1:
The housing employs three-dimensional spatial arrangement to prevent overlap between fastening receptacles and hydraulic channels without increasing overall housing dimensions. Components are positioned in different spatial zones and orientations, allowing reliable fastening and proper hydraulic function within a compact housing area, thus avoiding the need to enlarge the housing.
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
Enables easy and secure installation in multiple positions with reduced space and cost, as the separate valve and channel planes allow for compact fastening receptacle placement, avoiding the need for larger bodies or additional variants.
Implementation Method 1
a hydraulic connection (40) connecting the hydraulic chambers (34, 36, 37) in fluid communication
Implementation Method 2
Known door closers can have a hydraulic system for hydraulic damping
Data Source
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AI summary
The present invention relates to a door closer (10) for closing a door (100), the door closer (10) comprising a housing (20) and a hydraulic system (30) for adjusting at least one closing feature of the door closer (10) with a first hydraulic chamber (34), at least one second hydraulic chamber (36, 37) and a hydraulic connection (40) fluidly connecting the hydraulic chambers (34, 36, 37). The present invention further relates to a method for mounting and adjusting such a door closer (10).