Museum Showcase Articulated Quadrilateral Hinge With Closure Hook
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Articulated quadrilateral hinges in museum showcases struggle to maintain large and heavy doors in a closed position, leading to potential contamination and structural issues due to the door moving away from the container body under its own weight or external forces, compromising the showcase's integrity and security.
Innovation Solution
Incorporating a hook mechanism associated with the hinge's fixed and mobile elements that cooperates with engagement means, such as a roller, to prevent the door from moving away from the container body, ensuring stable closure and preventing contaminants and unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a large and heavy door is used to close the container body, then the door can effectively seal the showcase, but the door tends to move away from the container body under its own weight or external forces
Solution Approach 1:
The patent introduces a hook mechanism that engages with the container body to provide a counteracting force against the door's weight and external forces. The hook, when engaged, creates a mechanical counterbalance that prevents the door from moving away from the container body, directly addressing the instability caused by the door's substantial weight.
Solution Approach 2:
The hook acts as an intermediary element between the door and the container body. Rather than relying solely on the hinge to maintain closure, the hook provides an additional mechanical connection that mediates the force distribution and prevents door displacement, solving the stability issue without requiring changes to the door's fundamental structure.
2Ease of operation
If the door moves away from the container body in closed position, then the showcase can be forced open more easily, but this creates security vulnerabilities and allows contaminant entry
Solution Approach 1:
The hook mechanism provides a mechanical counterforce that maintains the door's engagement with the container body, preventing the slight separations that could be exploited for forced entry. This counterbalancing action ensures the door remains firmly sealed while still allowing legitimate operation.
Solution Approach 2:
The hook mechanism proactively counteracts forces that would tend to separate the door from the container body before such separation can occur. By continuously engaging and providing preemptive mechanical support, the system prevents the conditions that would lead to security vulnerabilities or contaminant entry.
3Adaptability or versatility
If an articulated quadrilateral hinge is used to allow roto-translation movement, then the door can open and close effectively, but the door cannot maintain a stable closed position
Solution Approach 1:
The patent combines the articulated quadrilateral hinge mechanism with an additional hook engagement system. The hinge provides the necessary roto-translation movement capability, while the hook mechanism is integrated to provide stable positioning in the closed state, merging the benefits of both mechanisms into a unified system.
Solution Approach 2:
The hook serves as an intermediary element that supplements the hinge's functionality. While the hinge enables movement, the hook mediates the force distribution in the closed position, providing the additional stability needed to maintain secure closure without restricting the hinge's movement capabilities.
Data Source
AI summary
The showcase has a hinge comprising a fixed element, associated with the container body, a mobile element, intended to be associated with the door, and a first connecting rod and a second connecting rod hinged between the fixed element and the mobile element, so as to obtain an articulated quadrilateral adapted for causing a roto-translation of the fixed element with respect to the mobile element between an open position and a closed position of the hinge. The hinge also comprises a hook, associated with one from the fixed element and the mobile element and adapted for cooperating in a releasable manner with engagement means associated with the other from the fixed element and the mobile element, so as to counteract the movement of the mobile element away from the fixed element when the hinge is in closed position.