Hinge With Segmented Screw Mechanism For Door Height Stability
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Solution Overview
Problem
Conventional door hinges cause unintended shifts in the door's height when opening and closing due to the supporting shaft rotating with the holder part, leading to potential interference and disturbance.
Innovation Solution
A hinge design featuring a holder part, a supporting part with an outer screw, a rotation part with an inner screw, a first regulation part to prevent rotation of the supporting part, and a second regulation part to restrict up-and-down movement, allowing the supporting part to move up-and-down without rotating with the holder part, thus preventing height shifts during door rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the supporting shaft is screwed into the female screw cylinder and protrudes downwardly for height adjustment, then the door height can be adjusted by rotating the flange part, but the supporting shaft rotates together with the holder part causing unintended height shifts during door opening and closing
Solution Approach 1:
The hinge is divided into functionally independent segments: the holder part for mounting, the supporting part with outer screw for height adjustment, and the rotation part with inner screw for connecting to the door. This segmentation allows the supporting part to adjust height independently without rotating with the holder part during door operation, resolving the contradiction between ease of height adjustment and height stability during door opening/closing
Solution Approach 2:
The rotation part acts as an intermediary component between the supporting part and the door. It connects to the door via the inner screw while the supporting part connects to the holder via the outer screw. This intermediary structure allows the supporting part to remain stationary relative to the holder during door rotation, preventing unintended height shifts while still enabling height adjustment through rotation of the rotation part
2Ease of operation
If the supporting shaft rotates together with the holder part during door rotation, then the door can open and close, but the height of the door shifts unintendedly in the up-and-down direction
Solution Approach 1:
The hinge structure is segmented into independent rotational and height-adjustment functions. The holder part and supporting part are separated such that the supporting part does not rotate with the holder part during door operation. This segmentation maintains door height stability while allowing door opening and closing through rotation of the rotation part only
Solution Approach 2:
Instead of having the supporting shaft rotate with the holder part during door operation, the invention inverts the relationship by making the supporting part stationary relative to the holder while allowing the rotation part to rotate independently. This inverted configuration prevents unintended height shifts while maintaining door functionality
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 hinge effectively prevents unintentional height shifts of the door during rotation, ensuring stable operation and easy height adjustment without interfering with the door's movement, even for large and heavy doors.
Implementation Method 1
a supporting part having a screw on an outer circumference and for supporting rotatably the holder part from below; a rotation part having a screw on an inner circumference and for rotatably connecting to the screw of the supporting part
Data Source
AI summary
An object is to provide a hinge capable of preventing an unintentional shift in height to an up-and-down direction with respect to rotation of a door.A hinge comprises a holder part supporting rotatably a door and for holding the door, a supporting part and for rotatably supporting the holder part from below, a rotation part having a screw on an inner circumference for rotatably connecting to the screw thread of the rotation part, a first regulation part disposed to the holder part and for regulating rotation of the rotation shaft with respect to the supporting part, and a second regulating part disposed to the holder part and for regulating up-and-down movement of the adjustment ring with respect to the holding part along an upper-and-lower direction.