Plastering Trough with Slanted Edges for Scraping
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Solution Overview
Problem
Existing plastering tools require multiple steps and result in plaster material loss when transferring excess plaster from one trowel to another.
Innovation Solution
A tool with an elongated trough and slanted edges for efficient scraping and collection of excess plaster, allowing for easy transfer back to a trowel or scraper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a second trowel is used to scrape off excess plaster from the first trowel, then the plastering process can continue, but plaster material is lost due to dropping off the secondary trowel
Solution Approach 1:
The patent combines the functions of two separate trowels into a single integrated tool. The first trowel blade and the second trowel blade are merged into one tool body, allowing the user to scrape excess plaster from the first blade onto the second blade without losing material. The merged structure eliminates the gap between tools and prevents plaster from dropping off during the transfer process.
Solution Approach 2:
The patent implements a nested configuration where the second trowel blade is positioned within or adjacent to the first trowel blade on the same tool body. This nesting arrangement allows the excess plaster to be transferred from the first blade directly onto the second blade, which is positioned to receive and hold the plaster, preventing material loss.
2Adaptability or versatility
If multiple tools are used for plastering, then different functions can be performed, but the complexity of the tool system increases
Solution Approach 1:
The patent merges multiple trowel functions into a single tool body with multiple blades. The first trowel blade for applying plaster and the second trowel blade for scraping excess plaster are combined in one tool, reducing the number of separate tools needed while maintaining all necessary functions for efficient plastering work.
Solution Approach 2:
The patent creates a multi-functional tool that can perform both plaster application and excess plaster removal operations. The tool body incorporates multiple blades with different characteristics, allowing a single tool to replace what would traditionally require multiple separate tools, thereby simplifying the overall tool system.
Data Source
AI summary
A tool (1) for keeping a working amount of plaster and which allows the easy shaving-off excess plaster off a trowel and also picking up plaster with the trowel from the tool. The tool comprises an elongated compartment referred to as a trough (2), with longitudinal inner walls (4,4′) that extend from respective longitudinal straight edges (3,3′) to a V-shaped bottom, a grip portion (5) underneath the trough, and at least two feet (6,6′) on which the tool can rest with the trough facing upwardly such that the user can fit his hand under the grip to grip and lift the tool from its resting position. Preferably one or both of the edges (3,3′) are slanted from horizontal. The edges can be slanted in the same or opposite direction, to form a suitable angle of the edges (3,3′) for either or both a right-handed and left-handed user.