Concealed Door Hinge With Clamping Jaws For Height Adjustment
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Solution Overview
Problem
Conventional door and window hinges designed for concealed construction are complex, error-prone, and costly due to numerous components and complicated adjustment processes, particularly in achieving precise height and lateral adjustments.
Innovation Solution
A hinge design featuring clamping jaws with inclined control surfaces and adjusting wedges for simultaneous height and fixation, along with a lateral adjustment element, allows for precise adjustments in all spatial directions using only two adjusting screws, simplifying the assembly and reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional concealed hinges use separate adjustment devices with multiple screws and components for height and lateral adjustment, then adjustment precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines height adjustment and fixation functions into a single clamping device with two clamping jaws and adjusting wedges, eliminating the need for separate adjustment devices. The clamping jaws can be displaced vertically to adjust height while simultaneously securing the hinge flap, reducing the number of components and simplifying the adjustment process.
Solution Approach 2:
The clamping device serves multiple functions: it adjusts the vertical position of the hinge flap, secures the flap in place, and provides lateral adjustment through the projection-recess mechanism. This multi-functional design eliminates the need for separate adjustment mechanisms for each degree of freedom.
2Adaptability or versatility
If conventional hinges use multiple adjusting screws and separate adjustment mechanisms for height and lateral positioning, then adjustment versatility is improved, but ease of operation deteriorates
Solution Approach 1:
The patent merges height adjustment and lateral adjustment into a unified clamping device system. The two clamping jaws with adjusting wedges handle vertical positioning, while the projection in the hinge flap interacts with the clamping jaws for lateral adjustment, all controlled through the same mechanical system rather than separate mechanisms.
Solution Approach 2:
The clamping device automatically maintains kinematic coupling between the clamping jaws and adjusting wedges through undercuts that engage mutually. This self-guiding mechanism ensures proper alignment and functionality without requiring complex external adjustment mechanisms for each degree of freedom.
3Reliability
If conventional hinges use multiple retaining screws and separate fixation mechanisms, then fixation reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent combines fixation and adjustment functions into the same clamping device. The two clamping jaws with adjusting wedges both position and secure the hinge flap simultaneously, eliminating the need for separate retaining screws and fixation mechanisms, thereby reducing component count and manufacturing complexity.
Solution Approach 2:
The undercuts on the clamping jaws and adjusting wedges create automatic kinematic coupling that guides the components relative to each other in both directions of movement. This self-guiding feature ensures reliable fixation without requiring additional retaining screws or complex assembly procedures.
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 enables a cost-effective, simple, and precise adjustment of door or window hinges in all spatial directions, reducing manufacturing complexity and handling difficulties, while ensuring secure fixation and easy assembly.
Implementation Method 1
the horizontal movement is translated into a vertical movement by means of adjusting screws via inclined surfaces
Implementation Method 2
two clamping jaws which are arranged above and below the inserted strap flap and can be displaced normal to the direction of insertion of the strap flap
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The invention relates to a hinge for a door or window, comprising a frame hinge (1) and a sash hinge (2), which can be concealed within the frame (3) and sash (4) of the door or window, respectively. The frame hinge (1) has a fastening section (5) which is connected to a hinge leaf (6) via a hinge (7). The sash hinge (2) has a fastening section (8) with a receptacle (9) for the hinge leaf (6) and a clamping device for fixing the hinge leaf (6). The clamping device comprises two clamping jaws (10) arranged above and below the inserted strip flap (6) and displaceable perpendicular to the insertion direction of the strip flap (6), wherein the clamping jaws (10) each have inclined control surfaces (11) which can be kinematically coupled to inclined control surfaces (12) of adjusting wedges (14) which are displaceable parallel to the insertion direction of the strip flap (6) by means of adjusting screws (13).The receptacle (9) for the band flap (6) in the fastening section (8) of the wing band (2) is designed to be larger in the direction of movement of the clamping jaws (10) than the corresponding width of the band flap (6), so that the clamping device of the wing band (2) serves simultaneously to fix and to adjust the height of the wing band (2) in relation to the frame band (1).