Screening Arrangement Rack End Piece for Easier Assembly
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Solution Overview
Problem
Existing screening arrangements face challenges in assembly and mounting procedures, which are cumbersome and require suspension elements that complicate the installation process.
Innovation Solution
The screening arrangement incorporates end pieces with integrated rack segments that form a continuous rack path for cogwheels, eliminating the need for suspension elements and simplifying assembly by ensuring cogwheels are correctly positioned during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If suspension elements are used in prior art screening arrangements, then the structural connection between components is achieved, but the assembly and mounting procedures become cumbersome and complex
Solution Approach 1:
The rack segment is integrated directly into the end piece, merging two previously separate components (end piece and suspension element) into a single unified structure. This eliminates the need for separate suspension elements and simplifies the assembly process, as the rack path is now continuously formed without requiring additional connection components.
Solution Approach 2:
The invention extracts and eliminates the suspension elements from the system by providing the rack segment integrally on the end piece. This removal of unnecessary components directly addresses the complexity issue while maintaining the structural connection function through the integrated rack segment design.
2Ease of manufacture
If suspension elements are required for connection, then component mounting is achieved, but the factory assembly process becomes more difficult due to positioning requirements
Solution Approach 1:
By combining the rack segment with the end piece into a single integrated component, the invention eliminates the need for precise positioning of separate suspension elements during factory assembly. The rack segment is inherently positioned correctly as part of the end piece structure, removing the precision positioning requirement entirely.
3Reliability
If the rack path is not continuous, then the transmission means cannot engage properly, but adding suspension elements increases device complexity
Solution Approach 1:
The integration of the rack segment into the end piece creates a continuous rack path without requiring additional suspension elements. This unified structure ensures proper engagement of the transmission means while avoiding the complexity of separate connection components.
Data Source
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AI summary
In the screening arrangement (10), a top casing (11) is configured to be connected to the frame at a top member thereof and to an upper end of respective side rails (12, 13) in the mounted condition of the screening arrangement (10). The top casing (11) is composed by at least one longitudinal profile (11a, 11b) extending in a direction parallel to the width direction (W) in the mounted condition, and two end pieces (25) connected to respective longitudinal ends of the top casing (11). A bottom element (14) connected to a bottom portion of a screening body is configured to be longitudinally positionable in a longitudinal direction (L) between a non-screening position of the screening body and a screening position by means of drive means (22) operably connecting the bottom element (14) and the side rails (12, 13), said drive means (22) comprising operating means including first transmission means including a cogwheel (144) at each longitudinal end portion of the bottom element (14) and second transmission means including a rack (124) arranged in each of the side rails (12, 13). Each end piece (25) of the top casing (11) is provided with a rack segment (254) configured to be adjoined with the rack (124) of the respective side rail (12, 13) in the mounted condition of the screening arrangement (10) so as to form a continuous rack path for the cogwheel (144) of the first transmission means.