Adjustable Pointing Tool With Rotating Multi-Curved Working Surfaces
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Solution Overview
Problem
Existing pointing tools have fixed shapes and surfaces, requiring multiple tools for different gap sizes and shapes, leading to inconvenience and inefficiency in construction.
Innovation Solution
A pointing tool with a rotatable working member and adjustable surfaces, featuring a stop mechanism to maintain position and allow easy switching between different curved surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pointing tool has a fixed shape and surface, then the structure is simple and easy to manufacture, but it can only fill gaps of determined cross-sectional shapes requiring multiple tools
Solution Approach 1:
The pointing tool is divided into a handle and a separate working member (pointing element). The working member can be detached and replaced, allowing different shapes and surfaces to be used for different gap types. This segmentation enables versatility without requiring the entire tool to be complex.
Solution Approach 2:
The handle is designed as a universal component that can accommodate multiple types of working members. By keeping the handle standardized and interchangeable working members, a single handle can serve multiple functions with different gap-filling requirements, reducing the need for multiple complete tools.
2Adaptability or versatility
If a pointing tool has two different surfaces in an integral structure, then it provides multiple working surfaces, but the working members do not allow angular adjustment causing inconvenient gripping
Solution Approach 1:
The working member is made rotatable relative to the handle, transforming the static integral structure into a dynamic adjustable system. This allows the user to rotate the working member to different angular positions to achieve comfortable gripping angles and adapt to different working conditions, while still providing multiple surfaces.
3Productivity
If a pointing tool allows easy surface shape adjustments, then it improves construction efficiency, but filling material may enter the inside of the pointing tool
Solution Approach 1:
The working member is designed to be detachable from the handle. When not in use or when changing working surfaces, the working member can be completely removed from the handle. This extraction approach prevents filling material from entering the connection interface, as the working member can be taken out rather than adjusted in place, maintaining both ease of adjustment and sealing reliability.
Data Source
AI summary
The present invention discloses a pointing tool comprising a working member and a gripping member. The working member is coupled to the gripping member. The working member is adjustable. A surface of the working member is a polygonal prismatic outer surface including a plurality of circular cylindrical surfaces with different radii of curvature. A first connecting member and a second connecting member each extend from one end of the gripping member. The working member includes a first working member and a second working member. The first working member and the second working member are rotatably disposed over the connecting members. A stop mechanism is further included and configured to stop and release the working members. A sealing member is further included and disposed in a terminal portion of the first working member in order to prevent particulate matter from entering the inside of the working member. The present invention has the advantages of a simple structure, convenient adjustability, high operating efficiency and low cost.