Adjustable Profile Screed for Pavement Construction
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Solution Overview
Problem
Existing screeds for pavement construction require complex conversion work and are uneconomical due to the need for complete replacement when different profiles are needed, leading to significant time and resource inefficiencies.
Innovation Solution
A screed design featuring angularly adjustable profile parts with a joint and angle adjustment mechanism, allowing for various profile configurations without replacing the entire screed, enabling efficient processing of different profiles and profiles with positive or negative angles without additional tools or conversion work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If standard screed boards are used for substrates with different profiles, then complete replacement of the screed board is necessary, but this leads to enormous time consumption and economic inefficiency
Solution Approach 1:
The screed board is divided into multiple profile parts that can be independently adjusted. Instead of replacing the entire screed board for different profiles, individual profile parts can be reconfigured by adjusting their angular positions relative to each other, enabling quick adaptation to different substrate profiles without complete replacement.
Solution Approach 2:
The profile parts are designed with adjustable angular positions relative to each other, transforming the static screed board into a dynamic system. This allows the screed board to adapt its shape and profile according to the specific substrate requirements, enabling versatile profile processing with a single system.
2Manufacturing precision
If complete replacement of screed boards is performed for different profiles, then the correct profile is achieved, but tool inventory and storage requirements increase enormously
Solution Approach 1:
The screed board is designed as a universal system where a single board can produce multiple different profiles through angular adjustment of its profile parts. This multi-functionality eliminates the need to maintain separate screed boards for different profiles, reducing tool inventory while maintaining profile accuracy.
Solution Approach 2:
The dynamic adjustability of profile parts allows one screed board to perform the functions of multiple specialized boards. By changing the angular positions of profile parts, the same physical board can be configured for different profiles, thereby reducing the total number of tools needed.
3Adaptability or versatility
If different profiles are stored and transported separately, then profile-specific screeding is enabled, but transportation and storage costs increase
Solution Approach 1:
Instead of storing multiple separate profile-specific screed boards, the invention provides a universal screed board that can be configured for different profiles through angular adjustment. This reduces the quantity of physical tools that need to be stored and transported while maintaining the ability to process various profiles.
Solution Approach 2:
The modular structure with adjustable profile parts allows the screed board to be reconfigured for different profiles without requiring separate complete boards. This segmentation enables profile variety to be achieved through configuration rather than through possessing multiple complete tools.
Data Source
Figure 1
Figure 2a~2b
AI summary
The present invention relates to a screed (1) for a screeding structure of a sidewalk, small-scale and surface paver (2), which is formed from at least one plank-, shield-, rod- and/or flat-shaped profile body (10) designed to compact, screed and/or level material applied to a substrate. The screed (1) according to the invention is characterized in that the profile body (10) is formed from at least one first profile part (100') and at least one second profile part (100"), which are adjustable (W) relative to each other at their adjacent inner end faces (1000).