Inspection Cover Lock with Pivotable Profile for Roller Shutter Box
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Solution Overview
Problem
Existing roller shutter box inspection covers require complex and careful procedures for installation and removal, involving unlocking and unscrewing of additional profiles and adapters, which complicates maintenance and replacement.
Innovation Solution
A pivotable additional profile with a hinge extension and undercut recess allows easy installation and removal by locking and unlocking, with a captive device to prevent loss, and a resilient locking mechanism for secure attachment to the roller shutter box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws and additional profiles are used to secure the inspection cover, then the cover is firmly fixed to the roller shutter box, but the installation and removal process becomes complex and time-consuming
Solution Approach 1:
The additional profile is divided into a first additional profile with locking elements and a second additional profile that can be easily detached. This segmentation allows the inspection cover to be quickly removed by detaching only the second profile, while the first profile remains securely locked to maintain reliability during operation.
Solution Approach 2:
The locking elements are designed to be dynamically adjustable between a locked state (protruding into recesses for secure attachment) and an unlocked state (retracted for easy removal). This dynamic capability allows the system to provide firm fixation during use while enabling rapid installation and removal when needed.
2Device complexity
If the additional profile is integrated into the inspection cover, then the structure is simplified, but the profile cannot be easily replaced if destroyed
Solution Approach 1:
The additional profile is designed as a separate, detachable component rather than being permanently integrated into the inspection cover. This segmentation maintains structural simplicity while enabling easy replacement of the profile if damaged, as it can be independently removed and replaced without affecting the inspection cover itself.
Solution Approach 2:
The additional profile is extracted as a separate replaceable component from the inspection cover assembly. This allows the profile to be independently replaced when destroyed or damaged, while the main inspection cover structure remains intact and can continue to be used with a new profile.
3Reliability
If a resilient locking mechanism is used, then secure locking is achieved, but the mechanism becomes more complex
Solution Approach 1:
The resilient locking mechanism is designed to automatically engage and lock when the additional profile is attached to the roller shutter box. The spring elements automatically protrude into the recesses to secure the connection without requiring manual intervention, providing reliable locking while keeping the mechanism simple and self-actuating.
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
Enables quick and easy installation and removal of the inspection cover without damage, ensuring secure locking and preventing accidental loss of components during use.
Implementation Method 1
a locking connection between the additional profile or the inspection cover and the roller shutter box, a locking projection consisting of two resilient locking rails
Implementation Method 2
individual locking pins, which in turn consist of several locking pin sections that are preferably spring-movable transversely to the locking direction
Data Source
Figure 1
Figure 2
AI summary
The revision covering (2) comprises a supplementary profile (3) adapted to its cover layer on the building's inner side and via which the revision covering is connected to a shutter case (1). The supplementary profile is turnably connected to the revision covering. The supplementary profile may be a separate building part from the revision covering. The end of the revision covering may have a rear-cut recess (4), whilst the supplementary profile may have a hinge extension (5, 6) such that a rear cutting (7) on the recess and the hinge extension form a hinge (5, 6, 7). There may be a secure fixture (7, 8, 9) provided for the supplementary profile which may be connected to the revision covering via a film hinge.