Disassemblable Hinge With Offset Pivot And Spring-Loaded Carriage
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Solution Overview
Problem
Existing hinge closures used in pressurized cabinets suffer from uneven wear and difficulty in adjusting the axle-to-frame spacing due to asymmetric carriage placement and limited adjustability, leading to potential unintentional door opening and installation challenges.
Innovation Solution
A hinge closure design where the carriage forms part of the seat for the frame assembly axis, with an offset pivot axis and actuating projections to ensure even force distribution and manual adjustment of the carriage, combined with an adjustable frame assembly using screws and nuts for customizable spacing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the carriage is asymmetrically located in the door member to enable venting state, then the hinge assembly can be displaced transversely for pressure relief, but the force is applied unevenly to the hinge assembly resulting in uneven wear
Solution Approach 1:
The patent applies asymmetry in reverse - it positions the carriage symmetrically on the pivot axis, creating a balanced force distribution during venting operation. This symmetric arrangement ensures that when the hinge assembly is in the vented state, the carriage applies force evenly to the pivot axis, preventing uneven wear while still enabling the necessary transverse displacement for pressure relief.
2Ease of operation
If the hinge assembly is designed for easy removal by manual actuation, then the door can be quickly detached for maintenance, but the mechanism becomes more complex with additional actuating components
Solution Approach 1:
The patent implements a self-service mechanism where the carriage automatically engages with the pivot axis through spring bias. The carriage is pre-loaded by a spring to contact the pivot axis, and when manual force is applied to the actuating element, the carriage automatically disengages the hinge assembly from the frame assembly. This self-service design simplifies the overall mechanism by eliminating complex locking or fastening systems while maintaining easy removal capability.
3Stability of the object's composition
If the carriage is designed to form part of the seat for the axis, then the hinge assembly can be rotated about the axis in hinged state, but the carriage must be manually pushed against spring preload to reach removal state
Solution Approach 1:
The patent uses spring preload as a counterforce to the carriage's engagement with the pivot axis. The spring is pre-compressed to apply a constant force that holds the carriage in its engaged position, providing stable hinged state. When removal is needed, manual force overcomes this spring preload to push the carriage against the spring, disengaging the hinge assembly. The spring acts as a counterweight that maintains stability during normal operation while enabling controlled disengagement.
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 design achieves even loading in the vented state, reducing wear and allowing for easy adjustment of the axle-to-frame spacing, enhancing the reliability and installability of the hinge closure.
Implementation Method 1
a spring-loaded carriage is designed and arranged such that when the pivoting part is pivoted out, the hinge assembly can only be displaced transversely to the axis of the frame assembly until the carriage comes into contact with the axis of the frame assembly
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a hinge closure (1) comprising a frame assembly (2), which has a pin (3), for fastening to a door frame and a hinge assembly (4), which can be rotatably mounted on the pin (3), with a door part (5) for fastening the hinge assembly (4) to a door, with a pivoting part (6) which is mounted on the door part (5) so as to be pivotable about a pivot pin (7), and with a slide (8) which is displaceably mounted in the door part (5), wherein, in a hinging state, the hinge assembly (4) is exclusively movable in rotation about the pin (3) of the frame assembly (2) and, in a venting state, is movable translationally transversely with respect to the pin (3) of the frame assembly (2) and is not yet completely removable from the pin (3) of the frame assembly (2), and wherein the hinge assembly (4) can be transferred against a spring preloading from the venting state into a removal state by manually actuating the slide (8), characterized in that the slide (8) is designed and arranged such that, in the hinging state, the slide (8) forms, together with the door part (5), a seat for the pin (3) of the frame assembly (2), and in that the pivoting part (6) is designed and arranged such that the pivot pin (7) of the pivoting part (6) is also offset from the pin (3) of the frame assembly (2) in the hinging state.