Gap-Limited Button Assembly for Pinch-Safe Telescopic Hot Sticks
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Solution Overview
Problem
Existing telescopic hot sticks suffer from issues such as pinching of the user's thumb or gloves between the outer and inner tubes, and the formation of permanent joints due to adhesives, which complicates disassembly and assembly.
Innovation Solution
A button assembly for telescopic hot sticks is introduced, comprising a button housing with a cavity and grooves, a button with a spring mechanism, and fasteners positioned to create a gap. When pressed, the button traverses the gap, contacts the fasteners, and is stopped, preventing further movement and thus avoiding pinching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesives are used to join tubes in telescopic hot sticks, then joint strength is improved, but disassembly and assembly become complicated
Solution Approach 1:
The button assembly is divided into separate components: a button body, a spring mechanism, and a fastener system. This segmentation allows the joint to be assembled and disassembled in distinct steps without requiring adhesive removal, resolving the contradiction between joint strength and ease of disassembly.
Solution Approach 2:
The spring acts as an intermediary element between the button body and the fastener. It provides the necessary force to maintain joint strength while allowing controlled movement and release, enabling both strong bonding and easy disassembly through mechanical means rather than adhesives.
2Adaptability or versatility
If tubes are slidingly engaged in telescopic configuration, then adjustability is improved, but pinching of user's thumb or gloves occurs
Solution Approach 1:
The button assembly serves as an intermediary mechanism between the user's finger and the telescopic tubes. Instead of direct contact between the finger and the sliding tubes (which causes pinching), the button transmits the releasing force through the spring mechanism to the fastener, eliminating harmful pinching while maintaining adjustability.
Solution Approach 2:
The spring mechanism provides self-service by automatically generating the force needed to release the fastener when the button is pressed. This eliminates the need for the user to apply excessive force directly to the tubes, preventing pinching while still achieving tube extension or retraction.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The button assembly enhances user safety by preventing pinching and allows for easy assembly and disassembly without permanent joints, improving the handling and maintenance of telescopic hot sticks.
Implementation Method 1
a spring disposed in the cavity, wherein a first end of the spring is coupled to the second end of the button and a second end of the spring is coupled to the bottom cavity surface of the cavity. When the button is pressed, the spring compresses.
Data Source
AI summary
A button assembly for a telescopic hot stick is provided. The button assembly comprises a button housing, a button, and a fastener. The button housing defines a cavity and at least one groove, and the cavity has a bottom cavity surface. The button is disposed in the cavity and the button has a first end and a second end. The second end is configured to face the bottom cavity surface. The fastener is disposed within the at least one groove, and the fastener is positioned adjacent the second end of the button. The fastener is spaced apart from the second end to collectively define a gap between the second end and the fastener.