Toggle Switch Lever Guide Surface for Power Tool Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing electric power tools with toggle switches face inefficiencies in installation due to the need to bias the lever to the OFF position during attachment, causing interference with engagement portions and reducing installation efficiency.
Innovation Solution
The electric power tool design includes a slanted guide surface and projection at the engagement portion of the switch lever, allowing the toggle switch to be attached without requiring the lever to be adjusted to the OFF position, ensuring it can be inserted between engagement portions regardless of its position, and enhancing installation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the switch lever is biased toward OFF position by a coil spring, then the toggle switch can be securely attached, but the lever interferes with the engagement portion on the ON position side, requiring manual adjustment to OFF position for attachment
Solution Approach 1:
The slanted guide surface is pre-formed on the engagement portion to automatically guide and tilt the lever to the OFF position during the attachment process itself, eliminating the need for separate manual adjustment steps while ensuring reliable engagement
2Ease of operation
If the lever is kept at ON position during attachment, then the attachment process can be simplified, but the lever interferes with the engagement portion making attachment impossible
Solution Approach 1:
The slanted guide surface acts as an intermediary element between the lever and the engagement portion, facilitating the automatic transition of the lever to the OFF position during attachment, thus enabling successful attachment without manual intervention while maintaining process simplicity
Data Source
AI summary
A reciprocating tool includes a toggle switch that is turned on or off by tilting a lever, and a switch lever in a motor housing. The switch lever includes an engagement frame into which the lever is inserted, and can slide in a tilting direction. The switch lever is slid to tilt the lever to an ON position or an OFF position through a sliding operation of the switch lever from the outside. An engagement portion of the switch lever on a side closer to the ON position of the lever is provided with a slanted guide surface that guides the lever in the ON position to the OFF position when the toggle switch is attached into an upper housing having the switch lever attached thereto.