Motorized Shutter Assembly with Sliding Guide Mechanism
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Solution Overview
Problem
Existing motorized shutter systems are heavy, expensive, and difficult to install due to offset anchoring points that require reinforcement, increasing manufacturing costs.
Innovation Solution
A motorization assembly with a first electromechanical module comprising a motor and electronic control unit, featuring a slide mechanism for guiding and securing the module to a chassis, and a transmission shaft with assembly elements distributed around the axis, allowing for easier installation and force distribution during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the motor assembly is mounted with an offset anchor point from the arm's axis of rotation, then the motorization module can be positioned for operation, but the parts must be reinforced to withstand forces, increasing weight and manufacturing cost
Solution Approach 1:
The invention uses an asymmetric bracket design where the mounting plate is offset from the transmission shaft axis, but compensates with a specifically designed attachment plate geometry that creates a balanced force distribution. The attachment plate extends in a direction opposite to the offset, creating a lever arm that balances the moments generated by the offset mounting position, thereby eliminating the need for reinforcement while maintaining operational positioning.
Solution Approach 2:
The invention resolves the force distribution problem by introducing a third dimension - the vertical extent of the attachment plate. Instead of merely lateral positioning in the mounting plane, the attachment plate extends vertically to create a distributed attachment zone. This dimensional extension allows forces to be distributed across multiple attachment points at different heights, reducing stress concentration and eliminating the need for heavy reinforcement.
2Ease of operation
If the bracket is designed to accommodate offset mounting, then the motor assembly can be installed, but the bracket becomes costly to manufacture due to reinforcement requirements
Solution Approach 1:
The bracket employs asymmetric geometry where the mounting plate and attachment plate are positioned at different locations relative to the transmission shaft axis. This asymmetric design allows the bracket to function with standard, unreinforced materials by using the geometric arrangement itself to balance forces, rather than relying on material reinforcement that would increase manufacturing cost and complexity.
Solution Approach 2:
The invention changes the geometric parameters of the bracket - specifically the offset distances and angles of the mounting and attachment plates. By optimizing these parameters, the bracket achieves force balance with standard materials, avoiding the need for expensive reinforcement while maintaining installation capability. The parameter optimization allows use of conventional manufacturing processes and materials.
3Device complexity
If assembly elements are concentrated at a single point, then the attachment is simple, but the forces received during operation are not properly distributed
Solution Approach 1:
The invention segments the attachment function into two distinct components: a mounting plate for securing the bracket to the support structure, and an attachment plate for connecting the transmission shaft assembly. This segmentation allows each plate to be optimized for its specific function while working together to achieve proper force distribution. The separation enables forces to be distributed across multiple points on both plates rather than concentrated at a single location.
Solution Approach 2:
The bracket itself acts as an intermediary element between the fixed support structure and the moving transmission shaft assembly. By positioning the mounting plate away from the axis and the attachment plate in a compensating configuration, the bracket mediates the force transmission, distributing loads through its geometric design rather than requiring direct concentrated attachment. This intermediary role allows force distribution without increasing overall structural complexity.
Data Source
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AI summary
The motorization assembly (1) of a hinged shutter (5) includes a first electromechanical module (M1), the first electromechanical module (M1) comprising a first electric motor (MA) and an electronic control unit (20), the motorization assembly comprising a frame (40) intended to be fixed to an architectural element (4) of an opening (2) in a building (3), the frame (40) comprising fixing holes (51, 52) so as to fix the frame (40) to the architectural element (4). The motorization assembly (1) also includes at least one slide (45, 46, 47) extending along a longitudinal axis (X) of the chassis (40) and assembly elements (64), the assembly elements (64) being arranged to cooperate with the slide (45, 46, 47), so as to guide the electromechanical module (M1) in translation relative to the chassis (40) and then to secure the electromechanical module (M1) to the chassis (40), during the assembly of the electromechanical module (M1) to the chassis (40).The invention also relates to the method of installing such a motorization assembly (1).