Hinge Mounting Element With Elastic Clamping For Spindle Stability
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Solution Overview
Problem
Existing door hinge receiving elements experience unintentional adjustment of threaded spindles under load, leading to frequent re-adjustment needs, especially with heavy door leaves, due to inherent bearing clearance.
Innovation Solution
A hinge receiving element design where the front element is connected to the holder via a clamping screw, allowing the threaded spindles to be clamped and fixed between the two, eliminating bearing clearance by elastic deformation, enabling precise and smooth adjustments with low turning resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bearing clearance is provided for easy adjustment of threaded spindles, then ease of operation is improved, but reliability deteriorates due to unintentional adjustment under load
Solution Approach 1:
The clamping device transitions from a static fixed state to a dynamic adjustable state through the elastic deformation of the front element. When adjustment force is applied, the front element deforms elastically to allow spindle movement; when clamping force is applied, the elastic deformation restricts movement, creating a dynamic system that adapts to different operational states
Solution Approach 2:
The system changes the physical state of the front element from undeformed to elastically deformed through application of adjustment force. This parameter change (deformation state) directly controls whether the threaded spindles can move freely or are constrained, enabling transition between adjustment mode and stable operation mode
2Reliability
If screws are tightened to eliminate bearing clearance, then reliability is improved, but ease of operation deteriorates as adjustment becomes difficult
Solution Approach 1:
The front element's deformation state serves as a controllable parameter that switches between two regimes: when deformed by adjustment force, bearing clearance is maintained for easy spindle rotation; when undeformed under clamping force, bearing clearance is eliminated for high stability. This parameter change enables both conditions to be achieved at different times
Solution Approach 2:
The system dynamically transitions between a loose state (during adjustment) and a tight state (during operation) through elastic deformation of the front element. The deformation acts as a mechanical switch that controls the bearing clearance, allowing the system to be easy to adjust when needed and stable when in use
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
Prevents unintentional spindle adjustment when the door is in use, allowing precise and smooth adjustments even with heavy door leaves, ensuring the hinge receiving element remains stable.
Implementation Method 1
the threaded spindles being clamped and fixed between the front element and the holder by elastic deformation
Data Source
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AI summary
The invention relates to a hinge receiving element for door hinges, comprising a holder (1), two threaded spindles (2) arranged between the holder (1) and a front element (3) and rotatably mounted on the holder (1), and a clamping device (4) comprising a clamping plate (5) and a pressure plate (6) adjustably attached to the clamping plate (5), wherein the threaded spindles (2) engage in threaded bores of the clamping plate (5) and bear against surfaces of the holder (1) and the front element (3) at their ends, wherein the front element (3) is connected to the holder (1) by at least one clamping screw (11) which extends through an installation space (12) for the threaded spindles (2) bounded by the surfaces of the front element (3) and the holder (1).According to the invention, the front element (3) forms a cover that rests against mounting surfaces of the holder (1), which is designed as a casting, forging or stamping/bent part, and conceals the clamping device (4) on the front of the band receiving element.