Roller Shutter Box Connection via Fitting Strip Displacement
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Solution Overview
Problem
Existing connections between roller shutter boxes and frames, such as window or door frames, lack a reliable and adjustable mechanism for secure fixation in the longitudinal direction, relying on stabilizing bars and screw connections which are not versatile or stepless.
Innovation Solution
A composite solution involving a fitting strip with a cutting edge or interlocking formation that allows for material displacement and positive locking, enabling the roller shutter box to be fixed in various positions relative to the frame by inserting the strip into a recess at an angled pivot position, creating a secure and adjustable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stabilizing bar is used to fix the roller shutter box to the frame, then the roller shutter box can be fixed in position, but the fixation is not adjustable or versatile in the longitudinal direction
Solution Approach 1:
The fitting strip is designed to be insertable and removable, allowing the roller shutter box to be dynamically adjusted to different positions along the frame's longitudinal axis. The receiving formation accommodates the fitting strip at variable positions, enabling stepless adjustment rather than fixed positioning.
Solution Approach 2:
The connection mechanism is divided into separate components: the fitting strip with cutting edge, the receiving formation in the head piece, and the stabilizing bar. This segmentation allows each component to perform its specific function while maintaining overall adjustability and simplicity.
2Reliability
If a cutting edge or interlocking formation is used on the fitting strip to achieve material displacement, then secure positive connection is achieved, but the insertion process requires angled pivot positioning
Solution Approach 1:
The fitting strip is pre-formed with a cutting edge or interlocking formation that will engage the head piece material during insertion. The angled pivot position is predetermined in the design, guiding the insertion process and ensuring proper engagement without requiring complex alignment procedures.
Solution Approach 2:
The cutting edge's ability to displace and potentially damage the head piece material is converted into a benefit by creating a positive locking mechanism. The material displacement creates friction and mechanical interlocking that secures the fitting strip in place, transforming what could be seen as destructive into a reliable connection method.
3Ease of manufacture
If the receiving formation is made as an integral part of the head piece, then manufacturing is simplified, but the fitting strip must be precisely accommodated in different positions
Solution Approach 1:
The receiving formation is designed as an integral part of the head piece that can dynamically accommodate the fitting strip at various positions along the longitudinal axis. The geometry of the receiving formation allows for stepless adjustment while maintaining precise engagement through the cutting edge mechanism.
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
This solution allows for stepless and variable fixation of the roller shutter box in the longitudinal direction, ensuring secure positioning and orientation relative to the frame, with the fitting strip providing a positive connection through material displacement, enhancing the stability and adjustability of the assembly.
Implementation Method 1
The material displacement is achieved by a cutting edge, tip or an interlocking formation formed on the fitting strip. In the course of inserting the fitting strip, the tip or the cutting edge or the hooking formation is introduced into the material in the area of the head piece.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a connection of a roller shutter box (1, 2) with a frame such as a window (3) or door frame (4), wherein the roller shutter box (1, 2) has a width and a length and has a head piece (6) extending in a width direction (r), wherein the roller shutter box (1, 2) is further attached to the frame (3, 4), wherein a receiving form (7) for the variable fixing of the roller shutter box (1, 2) relative to the frame (3, 4) is formed on the head piece (6), in which a part (8) of a fitting strip (9) extending from the frame (3, 4) is received, wherein the receiving form (7) enables a different arrangement of the part (8) in the width direction (r).In order to provide an improved connection of the type in question, it is proposed that the receiving form (7) allows stepless displacement of the roller shutter box (1, 2) in the width direction (r) by means of an adaptation to the part (8) of the fitting strip (9) to be received, by means of a corresponding displacement of the part (8) of the fitting strip (9) in the receiving form (7), wherein the fixing is achieved by a displacement of material at the head piece (6) during the insertion of the part (8) of the fitting strip (9) into the receiving form (7).