Power Tool Torque Transfer Socket With Anti-Wobble Guide Pin
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Solution Overview
Problem
Torque transferring devices for power tools, such as sockets and extensions, face issues with wobbling during rotation, which complicates proper positioning and can be problematic in automated operations, and existing solutions either provide insufficient guiding or increase the device's height.
Innovation Solution
A torque transferring device with a pin extending into a hole in the power tool output shaft, providing a compact guiding mechanism that reduces wobbling and circular run-out, and includes magnetic biasing and protective features like a freely rotatable outer sleeve and inner insulating elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If additional guiding structures are added to the tool output or socket base, then the rotation stability and positioning accuracy are improved, but the device height increases
Solution Approach 1:
The pin is nested within the open cavity of the socket body, with its head portion extending into the center hole of the output shaft. This nesting arrangement allows the guiding function to be integrated within the existing device volume without increasing the overall height of the socket.
Solution Approach 2:
Instead of adding guiding structures in the radial direction (which would increase width), the solution utilizes the axial dimension by extending the pin into the center hole of the output shaft. This dimensional approach provides guiding functionality while maintaining a compact profile.
2Adaptability or versatility
If longer torque transferring devices are used, then the reach and versatility are improved, but the wobbling and positioning accuracy deteriorate
Solution Approach 1:
The pin acts as an intermediary element between the socket and the output shaft, providing a precise rotational reference. This mediator ensures that even longer devices maintain accurate positioning by establishing a reliable center point for rotation through the pin's engagement with the center hole.
3Stability of the object's composition
If a pin extending into the output shaft is added, then the guiding and rotation stability are improved, but the device complexity increases
Solution Approach 1:
The pin serves multiple functions simultaneously: it provides guiding, ensures proper rotation about the center, and acts as a positioning reference. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity despite the added stability functionality.
Data Source
AI summary
The present specification relates to a torque transferring device for power tools, comprising a first portion comprising a first engaging structure arranged at a front end of the first portion and adapted to engage a corresponding mating structure to transfer torque thereto, and a second portion comprising a second engaging structure for connection to the output shaft of a power tool arranged at a rear end portion of the second portion, wherein the second engaging portion comprises an open cavity adapted to receive the output shaft of a power tool. The device further comprising a pin arranged at least partly in the open cavity, wherein the pin is arranged to extend in an axial direction and further arranged to, in use, engage a hole formed in the power tool output shaft.