Roller Capsule Locking Element for Winding Shaft Assembly
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Solution Overview
Problem
The assembly and disassembly of a winding shaft in a roller shutter box are difficult due to limited space and the time-consuming threading and fixing of the bearing body on the stationary bearing, with existing locking mechanisms being inconvenient and prone to misalignment, leading to insecure engagement.
Innovation Solution
A roller capsule with a locking element integrated into the bearing section, allowing axial displacement and automatic locking and unlocking through a spring-loaded mechanism with diametrically opposed blocking sections, ensuring secure engagement and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking clip is used to secure the bearing section, then the bearing section can be locked to the base body, but the locking mechanism becomes complex and the clip can be lost or misaligned during installation
Solution Approach 1:
The locking element is integrated directly into the bearing section, merging two previously separate components (locking element and bearing section) into one unified structure. This eliminates the risk of the locking element being lost and simplifies the overall structure while maintaining reliable locking functionality through the integrated design.
Solution Approach 2:
The locking element is extracted from being a separate attachable component and becomes an intrinsic part of the bearing section. This extraction of the locking function from a separate clip and integration into the bearing section itself resolves the complexity and reliability issues associated with separate locking clips.
2Adaptability or versatility
If the locking element is separate from the bearing section, then assembly is flexible, but the locking element can be lost and misalignment occurs during installation
Solution Approach 1:
By merging the locking element with the bearing section into a single integrated component, the patent eliminates the risk of the locking element being lost while maintaining assembly flexibility. The integrated design ensures that the locking function is always present with the bearing section, preventing misalignment issues during installation.
3Ease of operation
If the locking section is pressed down manually, then the bearing section can be inserted axially, but the operation requires precise positioning and force application
Solution Approach 1:
The spring-loaded locking element automatically returns to its blocking position after being pressed down, without requiring manual repositioning or complex actuation mechanisms. The spring mechanism provides self-service by automatically resetting the locking element, simplifying the operation while maintaining ease of axial insertion.
4Ease of operation
If only one locking section is actuated, then the operation is simplified, but the other locking section may remain engaged causing incomplete release
Solution Approach 1:
The two locking sections are merged into a single integrated locking element structure, ensuring that actuating one locking section automatically actuates the other through the shared spring mechanism. This unified design guarantees complete release of the bearing section while maintaining simplified user operation.
Solution Approach 2:
The spring-loaded mechanism provides dynamic coupling between the two locking sections, where the spring force automatically transmits the actuation motion from one locking section to the other. This dynamic connection ensures that pressing one locking section results in both sections being released, maintaining reliability while simplifying operation.
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
Facilitates easy assembly and disassembly of the winding shaft while maintaining secure engagement with the stationary bearing, reducing the risk of misalignment and detachment, and enhancing functional reliability with synchronized movement of blocking sections.
Implementation Method 1
locking section is recessed into the bearing section against a spring force. Upon release, the locking section is automatically returned to the locked position under the action of the spring force.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a roller housing for connecting a winding shaft (3) to a stationary bearing (8) in a roller shutter box (1). A bearing section (12) is held in a base body (14) of the roller housing (10). The bearing section is designed as a slide (20) that is axially movable within the base body (14). The slide (20) is provided with a locking element (30) which, in a release position, allows axial displacement of the bearing section (12) and, in a locking position, immobilizes the bearing section (12). To ensure easy assembly and disassembly of the winding shaft (3), the locking element (30) is arranged in the bearing section (12) and can be moved relative to the base body (14) together with the bearing section (12). In the locking position, the locking element (30) projects with a locking section (31, 32) beyond the outer circumference (24) of the bearing section (12).In the release position, the locking section (31, 32) is lowered into the storage section (12).