Roller Shutter Box Removable Access Hatch Design
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Solution Overview
Problem
Conventional roller shutter boxes with access from below have limited width due to the thickness of the frame assembly and fixing mechanisms, making maintenance operations cumbersome and space-intensive.
Innovation Solution
A roller shutter box design featuring a lower board with a fixed portion and a removable access hatch secured by a connecting member, allowing for easy access and maintenance without encroaching on internal space, utilizing a pivot connection and elastic deformable cylinder for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the access panel is secured by clipping or screwing it along each of its longitudinal edges, then the access panel is robust and prevents falling, but the mounting components encroach upon the width of access and make installation complex
Solution Approach 1:
The patent extracts the mounting function from the access panel itself and relocates it to the lower board. The connecting element is fixed to the lower board, and the access panel attaches to this connecting element, separating the structural support function from the access panel and eliminating the need for edge-mounted fasteners that would reduce access width.
Solution Approach 2:
The connecting element acts as an intermediary component between the lower board and the access panel. This mediator provides the attachment function without requiring modifications to the access panel edges, thus maintaining full access width while ensuring secure mounting through the connecting element's design.
2Reliability
If the access panel is secured by clipping or screwing it along each of its longitudinal edges, then the access panel is robust, but modifications to the CO compartment are necessary for installation
Solution Approach 1:
The mounting function is extracted from the access panel and transferred to the connecting element fixed on the lower board. This eliminates the need to modify the CO compartment for installing edge-mounted fasteners, as the connecting element provides all necessary attachment points.
Solution Approach 2:
The connecting element is pre-fixed to the lower board before the access panel is installed. This preliminary action prepares the mounting structure in advance, allowing the access panel to be simply attached to the connecting element without requiring any modifications to the CO compartment or complex installation procedures.
3Length of stationary object
If the access panel width is limited by the thickness of the frame assembly, then the structure remains compact, but maintenance operations become cumbersome
Solution Approach 1:
The patent resolves the space constraint by changing the attachment dimension. Instead of mounting the access panel along the longitudinal edges (which would consume width), the connecting element is fixed to the lower board, allowing the access panel to utilize the full width of the opening without encroachment from mounting components.
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 provides a wider opening for maintenance, ensuring easy access and secure operation without obstructing the internal space, enhancing usability and installation efficiency.
Implementation Method 1
said access hatch being secured to said connecting member by means of a pivot joint about a pivot axis parallel to said internal edge of said front longitudinal edge of said fixed portion
Implementation Method 2
said connecting member comprising at least one first rim extending from said front face of its vertical wing in the same direction as its horizontal wing, said first rim receiving along its free end a portion of elastically deformable cylinder, the longitudinal axis of the latter determining said pivot axis
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a box (1) for a roller shutter or similar having access from below and comprising at least a rear board (3), a top board (4), a front board (5) and a bottom board (6), the latter being remarkable in that said bottom board (6) comprises at least: - a fixed portion (8) arranged to be fixed on top of a frame (2), - an opening between said fixed portion (8) and front board (5), - a removable access hatch (14), and - a connecting member (15) fixed in a removable manner on said front longitudinal edge, and on which said access hatch (14) is removably attached.