Hinge With Displaceable Portion For Door Position Adjustment
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Solution Overview
Problem
Existing door hinges fail to accurately and stably adjust the position of a door with respect to a wall or furniture, as solutions using slots are imprecise and those using eccentric parts are unstable due to gravity.
Innovation Solution
A hinge design featuring hingedly displaceable portions connected by a hinge pin parallel to the main hinge axis, allowing for precise adjustment in multiple directions without sagging, using guide slots and adjusting screws or a worm and worm wheel mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If slots with screws are used for adjustment, then the structure is simple, but the adjustment precision is poor
Solution Approach 1:
The adjustment mechanism is divided into two independent directions: one for horizontal adjustment and one for vertical adjustment. Each direction has its own slot and screw system, allowing precise control in each dimension separately while maintaining overall structural simplicity
Solution Approach 2:
A displaceable portion acts as an intermediary element between the fixed portion and the hinge arms. This displaceable portion can be adjusted independently in two directions via slots and screws, enabling precise door positioning without complicating the overall hinge structure
2Measurement precision
If an eccentric part is used for fine adjustment, then the adjustment precision is improved, but the stability deteriorates due to gravity causing sagging
Solution Approach 1:
The eccentric mechanism is replaced with a slot-and-screw adjustment system. The screw threads engage with the slot to provide fine adjustment capability, while the screw head pressing against the slot wall prevents sagging under gravity, combining precision with stability
Solution Approach 2:
Instead of using an eccentric shape that relies on rotational positioning, the invention uses a linear slot that can be positioned precisely along the adjustment direction. The screw mechanism then locks this position, inverting the approach from rotational to linear adjustment with locking
3Stability of the object's composition
If the displaceable portion is rigidly fixed to the fixed portion, then the structure is stable, but the adjustability is lost
Solution Approach 1:
The connection between the displaceable portion and fixed portion is made dynamic through the slot-and-screw mechanism. The screw can be loosened to allow movement for adjustment, then tightened to lock the position, providing both adjustability and stability as needed
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a hinge (1) comprising a first fastening member (2), to which a first hinge arm (4) is attached, and a second fastening member (3), to which a second hinge arm (5) is attached which is hingedly connected to the first hinge arm (4), in which the first fastening member (2) comprises a fixed portion (6) and a portion (7) which is hingedly displaceable with respect to the fixed portion (6) and to which the first hinge arm (4) is attached, and adjusting means (8, 9) for adjusting the position of the displaceable portion (7) with respect to the fixed portion (6), so that a stable adjustment of the position of a door to a wall or piece of furniture is possible in a direction virtually at right angles to the hinge axis (A) and virtually at right angles to the plane of the door or the wall or the piece of furniture.