Rollable Screen Mounting Assembly With Rotational Spring Locking
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Solution Overview
Problem
Existing rollable screen assemblies require dedicated attachment devices and tools for mounting and dismounting, which complicates the process and increases the space needed for installation and removal.
Innovation Solution
A rollable screen assembly with a mounting part featuring projecting locking elements that rotate between two positions, utilizing a spring for both winding the screen and maintaining a locked engagement with the stationary mounting assembly, eliminating the need for additional locking means and allowing for easy installation and removal without requiring longitudinal movement of the winding tube.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stationary shaft is used for mounting the winding tube, then the mounting structure is stable, but dedicated attachment devices and tools are required for mounting and dismounting
Solution Approach 1:
The patent combines the mounting part with locking elements that integrate the shaft and locking functionality into a single component. The locking elements are directly formed as part of the mounting part, eliminating the need for separate attachment devices and tools while maintaining secure mounting stability.
Solution Approach 2:
The mounting part with integrated locking elements enables self-service mounting and dismounting operations. The locking elements automatically engage with the stationary mounting assembly when the mounting part is inserted, and can be released by rotating the mounting part, allowing users to perform mounting and dismounting without specialized tools or complex procedures.
2Device complexity
If a stationary shaft is used for mounting, then the structure is simple, but the space required for installation and removal is increased
Solution Approach 1:
The patent transitions from longitudinal insertion/removal (one-dimensional movement) to rotational engagement (angular movement). The locking elements engage through rotation of the mounting part around the stationary shaft, enabling mounting and dismounting operations within a compact radial space rather than requiring extended longitudinal access.
3Reliability
If additional locking means are used to secure the mounting part, then the locking is more reliable, but the device complexity increases
Solution Approach 1:
The locking functionality is merged into the mounting part itself through integrated locking elements. These elements are formed as part of the mounting part structure and work in conjunction with corresponding features on the stationary mounting assembly, eliminating the need for separate locking mechanisms while ensuring reliable engagement.
Solution Approach 2:
The locking elements automatically engage with the stationary mounting assembly when the mounting part is inserted and rotated into position. The spring-loaded mounting part self-secures through the interaction between the locking elements and the stationary assembly features, providing reliable locking without additional manual intervention or complex mechanisms.
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 solution simplifies the mounting and dismounting process by using a spring-loaded locking mechanism that automatically secures the screen in place during operation and facilitates easy detachment for servicing, minimizing space requirements and eliminating the need for complex tools.
Implementation Method 1
a spring (4) for loading said winding tube (3) in a direction for winding the screen (1) onto the winding tube (3)
Implementation Method 2
wherein said spring (4) loads the mounting part (6) towards the second rotational position
Data Source
AI summary
A rollable screen comprises a rotatable winding tube for a screen mounted for rotation in a stationary mounting assembly and a spring for loading said winding tube in a direction for winding the screen onto the winding tube. A first end of said spring is connected to the winding tube and a second end is connected to a mounting part positioned within the winding tube and connected to the stationary mounting assembly. Said mounting part comprises projecting locking elements for cooperation with corresponding locking members of the mounting assembly and for a rotation relative thereto between a first rotational position in which the mounting part can be inserted in or removed from the mounting assembly, and a second rotational position in which the locking elements and locking members prevent any translational movement of the rollable screen relative to the stationary mounting assembly.