Telescoping Extension Tool for Railroad Brake Actuators
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Solution Overview
Problem
Current tools for rotating railroad car brake actuators require frequent ladder climbing, making the process time-consuming and dangerous, as they lack a mechanism for extending and retracting with minimal resistance and without jamming.
Innovation Solution
An extension tool with a first pole and a second pole that can be slidably displaced, featuring a platform and retainer mechanism for adjusting length, reducing the need for ladder climbing by allowing the tool to be extended and retracted with minimal force and preventing jamming through bushing engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the tool length is extended to reach brake actuators on railroad cars, then the operator can avoid ladder climbing and improve safety, but the tool becomes heavier and harder to maneuver
Solution Approach 1:
The tool is divided into two separate poles (first pole and second pole) that can be used independently or combined. This segmentation allows the operator to use only the necessary length for each task, reducing unnecessary weight while maintaining the capability to reach high brake actuators when needed.
Solution Approach 2:
The telescoping mechanism allows the tool length to be dynamically adjusted between a retracted configuration (lighter, easier to maneuver) and an extended configuration (reaching higher positions). The spring-loaded retainer system enables quick length changes without manual disassembly.
2Adaptability or versatility
If the tool uses a telescoping mechanism to adjust length, then the tool can adapt to different working positions, but the mechanism may jam or require excessive force to operate
Solution Approach 1:
The spring-loaded retainer mechanism automatically engages with the apertures in the second pole to lock the telescoping sections in place. The spring force provides automatic retention without requiring manual locking actions, and the operator can simply push or pull to extend or retract the tool.
Solution Approach 2:
The retainer acts as an intermediary between the operator's force and the telescoping poles. It translates the operator's simple pushing or pulling motion into secure locking at desired positions, eliminating the need for complex manual locking mechanisms.
3Adaptability or versatility
If the tool uses a telescoping mechanism, then the tool length can be adjusted, but the mechanism increases device complexity
Solution Approach 1:
The telescoping mechanism is implemented only at the specific location where length adjustment is needed (between the first and second poles), while the rest of the tool maintains simple, robust construction. The retainer mechanism is localized to the connection point between poles.
Solution Approach 2:
The tool's primary variable parameter is its length, which is adjusted by telescoping the poles. The invention focuses the complexity only on this one parameter while keeping other aspects of the tool (handle, brake actuator engagement components) simple and straightforward.
Data Source
AI summary
An extension tool extends a device. The extension tool includes a first pole slidably receiving a second pole. A collar is secured to the first pole having a pin aperture. A platform is pivotably coupled to the collar. A pin is coupled to the platform. A retainer is coupled to the collar and engages with the platform for maintaining the platform in the closed position and disengaging with the platform for positioning the platform in the open position. The closed position positions the pin in one of the plurality of apertures for fixing the position of the second pole relative to the first pole. The open position disengages the pin from one of the plurality of apertures of the second pole for permitting displacement of the second pole relative to the first pole.