Installation Box Membrane Opening for Clean Tear Removal
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Solution Overview
Problem
Existing installation boxes face challenges in cleanly removing soft plastic membranes from installation openings, often resulting in remnants remaining attached, which complicates the installation process.
Innovation Solution
The installation box design features an opening handle with a root zone off-center to the installation opening, connected by a rib, allowing the membrane to be torn in a defined manner along the opening's contour, facilitated by a U-shaped profile and grip contours for manual or tool-assisted removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a soft plastic membrane seals the installation opening, then airtightness and smoke tightness are maintained, but the membrane cannot be cleanly removed leaving remnants
Solution Approach 1:
The membrane is segmented into two functional zones: a root zone that remains attached to provide sealing, and a removable zone that can be cleanly pulled away. The opening handle is positioned to apply force specifically to the removable zone, enabling clean separation without leaving remnants while the root zone maintains airtightness.
Solution Approach 2:
The opening handle acts as an intermediary tool that applies controlled force to the membrane through the rib structure. This intermediary mechanism enables clean membrane removal by distributing force appropriately, preventing random tearing and allowing complete removal without compromising the root zone's sealing function.
2Stability of the object's composition
If the opening handle is positioned at the center of the installation opening, then symmetric force distribution is achieved, but defined tearing along the opening contour cannot be ensured
Solution Approach 1:
The opening handle is deliberately positioned asymmetrically (off-center) relative to the installation opening. This asymmetric positioning, combined with the rib structure, creates a defined tear path that follows the opening contour precisely. The asymmetry enables controlled tearing in the desired direction while the rib ensures force is applied at the correct location for clean separation.
3Adaptability or versatility
If the membrane is removed before box mounting, then installation flexibility is maintained, but airtightness cannot be verified until after mounting
Solution Approach 1:
The membrane is pre-installed on the box before mounting, maintaining installation flexibility. The root zone design allows the membrane to remain attached during mounting, enabling airtightness verification to occur after the box is installed. The membrane's dual-zone design ensures it can withstand mounting forces while maintaining its sealing function.
Data Source
Figure 1
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AI summary
The invention relates to an installation box for electrical and/or electronic installations with a box body 2, 2.1 serving to accommodate at least one electrical/electronic component, comprising a base 2, a surrounding wall 3 and a mounting opening 5, which box body 2, 2.1 has at least one installation opening located in the wall 3 or, if present, in a transition surface between the wall 3 and the base 4, which is closed by a soft plastic membrane 8, 8.1, wherein an opening handle 9, 9.1 for opening or removing the soft plastic membrane 8, 8.1 closing the installation opening is integrally formed on the outwardly facing side of the plastic membrane 8, 8.1, with an opening tab Ö projecting beyond the installation opening spanned by the soft plastic membrane 8, 8.1 for grasping the opening handle 9, 9.1. A particular feature is that the opening handle 9, 9.1 is connected to the soft plastic membrane 8, 8.1 via an end section opposite the opening flap Ö across its width together with the soft plastic membrane 8, 8.1 arranged off-center to the area of the soft plastic membrane 8, 8.1 spanning the installation opening, and to the root area 14 following the contour of the installation opening on the outside and to at least one web 11, 11.1, 12 with the soft plastic membrane 8, 8.1.