Cabinet Hinge Structure With 3-Axis Eccentric Adjustment
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Solution Overview
Problem
Conventional hinges lack adjustability, soft-closing, and swing retention, and are often bulky and unsightly when installed on cabinets.
Innovation Solution
A hinge with fore-aft, lateral, and vertical adjustment brackets and eccentric fasteners that allow for precise positioning and adjustment, featuring a fore-aft adjustment bracket, lateral adjustment bracket, and vertical adjustment bracket, along with eccentric fasteners to adjust the hinge's position on a cabinet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hinge is installed on a cabinet to enable opening and closing, then the cabinet can be opened and closed, but the hinge may detach from the cabinet body during use
Solution Approach 1:
The hinge is divided into multiple functional components: a body portion, an arm portion, and a fastening mechanism. This segmentation allows each component to perform its specific function independently, improving reliability without requiring overall structural complexity
Solution Approach 2:
The fastening mechanism employs a nested structure where the fastening portion fits into a corresponding recess in the cabinet body, creating a secure attachment. The resilient portion is nested within the fastening portion, providing automatic engagement and retention forces
2Device complexity
If a simple hinge structure is used, then the device complexity is low, but the hinge may detach from the cabinet body during use
Solution Approach 1:
The resilient portion automatically engages with the fastening portion through elastic deformation, creating a self-locking mechanism that secures the hinge to the cabinet body without requiring additional fasteners or complex assembly procedures
Solution Approach 2:
The resilient portion is formed with a curved or bent geometry that allows it to flex and engage with the fastening portion. This curved structure provides mechanical advantage and ensures reliable retention through elastic recovery forces
3Ease of operation
If the hinge arm is positioned far from the cabinet body, then the opening and closing function is improved, but the hinge may detach more easily
Solution Approach 1:
The fastening mechanism extends in a direction substantially perpendicular to the opening and closing motion of the cabinet. This dimensional orientation provides lateral retention forces that prevent detachment while allowing full range of motion in the primary operating direction
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
A hinge includes a fore-aft adjustment bracket, a lateral adjustment bracket, and a vertical adjustment bracket including a fore-aft adjustment opening, a lateral adjustment opening, and a vertical adjustment opening, respectively. The hinge also includes an upper housing member coupled to the fore-aft adjustment bracket, and a lower housing member coupled to the lateral adjustment bracket and the vertical adjustment bracket. The hinge further includes a hinge pin accommodated in a hinge pin opening defined by the upper and lower housing members, a pair of guide pins accommodated in a pair of arcuate channels in the lower housing, and a fore-aft adjustment eccentric fastener, a lateral adjustment eccentric fastener, and a vertical adjustment eccentric fastener configured to extend into the fore-aft adjustment opening, the lateral adjustment opening, and the vertical adjustment opening, respectively.