Slide Guide Frame Joint Structure for Narrower Screen Openings
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Solution Overview
Problem
Existing slide guide frame portions for screen devices face challenges in reducing the width of the slidable screen mounting frame portion while maintaining sufficient strength for connection between rigid units, as reducing the width compromises the strength of the side wall portions and small protrusions.
Innovation Solution
The slide guide frame portion is designed with a new configuration of rigid units, featuring a depressed portion, a through hole, and a shaft with a chamfer, allowing for rotational connection and flexibility, and incorporating a roller pipe with a coil spring for enhanced strength and reduced width, eliminating the need for a long hole and small protrusion, which improves strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the width of the slide guide frame portion is reduced to reduce the width of the slidable screen mounting frame portion, then the opening area is increased and ventilation is improved, but the strength of the side wall portion and small protrusion is insufficient
Solution Approach 1:
The side wall portion is divided into multiple rigid units that are connected through rotatable connections. Each rigid unit contains a small protrusion and a long hole, allowing the side wall to be segmented into manageable sections that can be assembled while maintaining overall structural integrity. This segmentation enables the side wall portion to achieve sufficient strength through the cumulative effect of multiple connection points rather than relying on a single large structure.
Solution Approach 2:
The small protrusion is nested within the long hole of adjacent rigid units, creating a interlocking connection system. The protrusion fits into the crescent-shaped long hole, providing rotational freedom while maintaining structural connection. This nesting mechanism allows for compact design with reduced width while ensuring that the connection between rigid units maintains sufficient strength through the interlocking geometry of the protrusion and hole.
2Area of stationary object
If the width of the slide guide frame portion is reduced to reduce the width of the slidable screen mounting frame portion, then the opening area is increased and ventilation is improved, but the connection strength between rigid units is insufficient
Solution Approach 1:
The connection system is segmented into multiple rigid units with standardized protrusion and long hole features. Each unit can be independently manufactured and then assembled, allowing for consistent connection strength across all joints. The segmentation enables the use of optimized connection geometry (protrusion fitting into crescent-shaped long hole) that provides sufficient rotational freedom while maintaining strong connections.
Solution Approach 2:
The rigid units are formed using composite construction combining the protrusion and long hole features within each unit. The side wall portion uses a composite of multiple rigid units connected through the protrusion-long hole interface, creating a structure that achieves sufficient connection strength through the combination of geometric interlocking and material properties, even with reduced overall width.
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 configuration allows for a reduced width of the slidable screen mounting frame portion while ensuring sufficient connection strength, enabling increased opening area and improved ventilation when the screen is completely opened or closed.
Implementation Method 1
A roller pipe having a built-in coil spring is rotatably stored inside the fixed screen mounting frame portion. One end of the screen is attached to the roller pipe. The roller pipe is rotated by an elastic force generated in the coil spring, and the screen is preferably wound around the outer peripheral of the roller pipe.
Data Source
AI summary
In a side wall portion of a rigid unit which forms a slide guide frame portion, a depressed portion is formed in one approximately half portion, a through hole is formed in the other approximately half portion, and a protrusion is provided adjacent to the through hole inside the substantially center portion. In the depressed portion, a shaft protruding toward the outside is provided in the substantially center portion, and a notch portion cut in a height direction of the rigid unit is formed from the substantially center portion of the depressed portion to one end portion of the side wall portion. Adjacent two rigid units are connected by a shaft which is inserted into the through hole from the inside, and one unit is freely rotated with respect to the other unit within a range in which the protrusion abuts on one end and the other end of the notch portion.