Door Hinge Insert Play Reduction via Segmented Holding Body
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Solution Overview
Problem
Existing door hinges face challenges in stability and wear, especially under high weight loads, due to play and misalignment in adjustment mechanisms, which affect their rigidity and longevity.
Innovation Solution
The inserts are held in a form-fitting manner on a common holding body between a horizontal wall and a counter bearing, reducing mobility and play, and are connected via a rigid holding body that absorbs vertical forces, preventing tilting and allowing for precise adjustment mechanisms to maintain stability and reduce wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the inserts are held rigidly on a base body to form a rigid unit, then the door hinge can absorb vertical loads, but considerable play occurs leading to misalignment and wear
Solution Approach 1:
The door hinge is divided into separate components: a base body, a holding body, and inserts. The inserts are held on the holding body by a door belt, creating a segmented structure that allows each component to perform its specific function - the base body absorbs vertical loads while the door belt prevents play between inserts and holding body.
Solution Approach 2:
The door belt acts as an intermediary element between the inserts and the holding body. It connects these components while preventing relative movement and play, thereby maintaining alignment stability while still allowing the rigid structure to absorb vertical loads.
2Adaptability or versatility
If adjustment mechanisms are provided for height and lateral adjustment, then the door leaf can be adjusted in three directions, but play in the adjustment mechanism causes misalignment
Solution Approach 1:
The door belt serves as a mediator that connects adjustment components while eliminating play. It ensures that adjustment forces are transmitted without slack, maintaining precision during height and lateral adjustments while preserving the full adjustment capability.
Solution Approach 2:
Instead of trying to eliminate play through complex adjustment mechanism design, the invention inverts the approach by using the door belt to pre-establish a play-free connection between components, allowing simple adjustment mechanisms to achieve high precision.
3Adaptability or versatility
If elongated holes are used for height adjustment, then the door leaf height can be adjusted vertically, but the cut-out must have oversize making adjustment difficult
Solution Approach 1:
The door belt acts as an intermediary that enables height adjustment through a different mechanism. Instead of relying on oversized elongated holes, the door belt allows vertical adjustment while maintaining precise positioning and avoiding the manufacturing difficulties associated with large cut-outs.
Data Source
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AI summary
The invention relates to a door hinge for a concealed arrangement between the door leaf and the door frame, comprising a first receiving body (1) and a second receiving body (2) which can be inserted into recesses in the door frame and a narrow side of the door leaf, and a hinge bracket arrangement connecting the receiving bodies (1, 2), which has at least two hinge brackets (4a, ab) connected about a vertical axis (5), wherein the hinge bracket arrangement is rotatably held on the first receiving body (1) by two spaced-apart, separate inserts (7), wherein the inserts (7) are jointly attached to a retaining body (8) extending over the height of the hinge bracket arrangement, and wherein the retaining body (8) with the inserts (7) arranged thereon and the hinge bracket arrangement is adjustable relative to the first receiving body (1) in the vertical direction (z).According to the invention, the inserts (7) are held in a form-fitting manner on the common holding body (8) in the vertical direction (z) between a substantially horizontal wall (9) and a counter bearing (10) of the holding body.