Hand-Held Setting Tool Positioning Device with Radial Actuation
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Solution Overview
Problem
Existing positioning devices for hand-held setting tools can inadvertently actuate when supported on a floor, leading to unintended operation.
Innovation Solution
A positioning device with an elongate support element and an actuation element arranged radially outward, featuring a pot-shaped base part that prevents actuation when pressed against a floor, and modular design with displaceable switching members to ensure secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the positioning device is supported on a floor with the rod or bar, then the device can be manually pressed against the muzzle piece of the setting tool, but inadvertent actuation of the setting tool occurs
Solution Approach 1:
The holder is segmented into a rod part and a base part that can be connected or separated. The actuation element is arranged radially outwardly of the support element, creating spatial segmentation that prevents floor pressing from transmitting force to the actuation switch while still allowing intentional actuation when the tool is positioned correctly
Solution Approach 2:
The actuation element serves as an intermediary between the operating means and the actuation switch. It is displaceable axially relative to the support element and only transmits actuation force when properly positioned, acting as a mediator that filters out unintended pressing forces from floor support
2Reliability
If the actuation element is arranged radially outwardly of the support element, then inadvertent actuation is prevented, but the connection point becomes less accessible
Solution Approach 1:
The actuation element is arranged within the holder structure, nested within the spatial envelope defined by the support element. The operating means is disposed within the holder and connects to the actuation element through this nested arrangement, providing protected yet functional connectivity
Solution Approach 2:
The actuation element is positioned in a radial dimension outwardly from the support element's axis, creating a three-dimensional arrangement where connection occurs through axial displacement rather than radial access. This dimensional reorganization protects the connection point while maintaining actuation functionality
3Object-affected harmful factors
If the base part extends beyond the axial end of the actuation element, then dirt penetration is prevented, but the device complexity increases
Solution Approach 1:
The base part is formed as a pot-shaped structure that creates a closed or semi-closed environment around the axial end of the actuation element. This shell-like structure prevents dirt and contaminants from penetrating into the space between the base part and actuation element, protecting the actuation mechanism
Solution Approach 2:
The base part combines multiple functions: it serves as the support surface when the device is placed on a floor, extends beyond the actuation element to prevent dirt penetration, and structurally integrates with the holder. This merging of functions reduces the need for separate protective components
Data Source
AI summary
A positioning device for a hand-held setting tool (10) includes a holder (21), a support (22) for the setting tool (10) arranged at an end of the holder and fixedly connected with an elongate support element (23) extending parallel to the longitudinal axis (A) defined by the holder and having, at its end remote from the support, a base part, and a switching device for actuating the actuation switch (13) of the setting tool (10) and including an operating element for actuating the actuation switch (13), and an actuation element (24) arranged radially outwardly of the support element (23) and displaceable axially thereto and connectable with the operating element, with the base part extending beyond the end of the actuation element (24) remote from the support (22).