Duo-Mode Tool Connecting Mechanism for Versatile Space Adaptation

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Solution Overview

Problem

Existing tool kits with handles and bits face limitations as universal joints are ineffective in deep and narrow spaces, while extensive rods are not useful in crooked spaces, requiring users to purchase both components and switch between them, which is costly and inconvenient.

Innovation Solution

A duo-mode device comprising a rod, a polygonal sphere, and a socket that allows pivoting or axial movement, enabling the tool kit to function as both a universal joint and an extensive rod depending on the position of the rod within the socket, using a retaining element to secure the sphere in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If users buy both a universal joint and an extensive rod to cover all space requirements, then both crooked and deep/narrow space usability is improved, but the cost increases

Engineering Contradiction:

Improveoverall space adaptabilityVSAvoidnumber of components

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent merges the functions of a universal joint and an extensive rod into a single integrated device. The extensive device includes a rod, a polygonal sphere with polygonal cavity (providing universal joint functionality), and a socket, combining both functionalities into one component rather than requiring separate purchases

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If users switch between universal joint and extensive rod depending on space requirements, then optimal performance is achieved, but the operation becomes troublesome

Engineering Contradiction:

Improveoptimal performance in different spacesVSAvoidconvenience of switching components

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The extensive device is designed as a universal tool that maintains functionality in both crooked and deep/narrow spaces without requiring component switching. The integrated design allows the user to employ the same device for all drilling tasks regardless of space constraints

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS7966915B2Extensive device for tool

Publication Date: 2011.06.28 CHEN HUI CHIEN

AI summary

An extensive device is disclosed to connect a bit to a handle of a tool. The extensive device includes a rod, a polygonal sphere, a socket and a retaining element. The polygonal sphere is connected to the rod near an end. The socket includes a polygonal cavity, a tunnel and a groove. The polygonal cavity receives the polygonal sphere so that the surface of the polygonal sphere is in contact with the wall of the polygonal cavity. The rod and the socket are coaxial when the end of the rod is disposed in the tunnel. The rod can be pivoted relative to the socket when the end of the rod is located outside the tunnel. The groove is defined in the wall of the polygonal cavity. The restraining element is fit in the groove of the socket to keep the polygonal sphere in the polygonal cavity of the socket.