Built-in Blind Assembly Side Access Cord Driving Unit
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Solution Overview
Problem
Conventional built-in blind assemblies hinder user access to the cord-driving unit and obstruct vision during assembly, leading to low efficiency and accuracy.
Innovation Solution
A built-in blind assembly design featuring light-transmissive outer panels, a frame unit, a top rail unit with a removably connected top rail seat and cover, and side rail units with interlocking structures that allow for easy installation of the cord-driving and control units without blocking the user's view, eliminating the need for additional fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the top rail seat is coupled to the top frame to define an accommodating cavity with the open side facing upward, then the cord-driving unit can be housed securely, but the user cannot access the cord-driving unit without decoupling the top frame and top rail seat first
Solution Approach 1:
The patent divides the housing structure into separate components: the top rail seat, top frame, and side rail units are distinct segments that can be independently accessed. The open side of the accommodating cavity is positioned to allow access through the side rail unit area, enabling users to reach the cord-driving unit without decoupling the entire top frame and top rail seat assembly.
2Productivity
If the top rail seat is positioned to define the accommodating cavity, then the cord-driving unit can be housed, but the user's vision is blocked during assembly, resulting in low assembling efficiency
Solution Approach 1:
The patent repositions the open side of the accommodating cavity to face a different direction (toward the side rail unit area rather than upward), creating a new access dimension. This dimensional change allows users to approach and work on the cord-driving unit from the side, improving visibility and assembly efficiency while maintaining secure housing of the component.
3Reliability
If additional fasteners are used to secure the cord-driving unit, then the housing structure is more secure, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The patent designs the coupling structures between components (top rail seat, top frame, side rail units) to be self-securing through their interlocking geometries. The removable coupling mechanisms are designed to inherently hold components in place without requiring additional fasteners, allowing the structure to secure itself through the design of the coupling interfaces alone.
Data Source
AI summary
A built-in blind assembly includes light-transmissive first and second outer panels, a blind unit, a frame unit, a top rail unit, and a cord-driving unit. The first and second outer panels face each other. The blind unit is disposed between the first and second outer panels. The frame unit includes a top frame disposed above the blind unit. The top rail unit includes a top rail seat that is connected to the top frame and that defines a top accommodating cavity having an open side adjacent to the second outer panel, and a top cover that is removably connected to the top rail seat. The cord-driving unit is disposed in the top accommodating cavity, is coupled to the blind unit, and is operable to control operation of the blind unit.