Pressing Jaw Tool Layout for One-Handed Switch Access
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Solution Overview
Problem
Existing pressing tools face challenges in ergonomics and handling, particularly in preventing the hand from slipping off during operation and ensuring easy, single-handed activation of the actuating switch.
Innovation Solution
The design incorporates a pin-like holding projection with an actuating switch protruding from the housing, allowing ergonomic single-handed operation by enabling the finger to slide from the pressing jaw to the actuating switch without slipping, and the pressing jaws are pivotable independently for easy opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the actuating switch is arranged on the housing in the hand region, then it is accessible for operation, but the hand may slip off during use
Solution Approach 1:
The housing is segmented by adding a holding projection that protrudes from the housing surface, creating distinct functional zones: the hand region for gripping and the actuating switch region for operation. This segmentation prevents hand slippage by providing a dedicated gripping surface while maintaining switch accessibility.
Solution Approach 2:
The holding projection acts as an intermediary element between the hand and the housing. It provides an additional contact surface for the hand to grip, mediating the interaction between the user's hand and the tool, thereby preventing slippage while allowing the actuating switch to remain accessible.
2Ease of operation
If the pressing jaws are held in open position for part attachment, then the part can be positioned in the pressing mouth, but the operation requires two hands
Solution Approach 1:
The pressing jaw is designed with self-service functionality through an integrated opening mechanism. The second pressing jaw can be manually opened by acting upon its end, allowing the first pressing jaw to remain in position for part attachment. This self-opening capability eliminates the need for two-handed operation while maintaining the ability to position parts in the pressing mouth.
Data Source
AI summary
A pressing tool includes a housing and pressing jaws arranged outside the housing. One or both pressing jaws can be pivoted into the open position by a user's hand acting upon the respective pressing jaw that faces the housing. An actuating switch is formed on a pin-like holding projection having a longitudinal extent with a free end which protrudes from the housing at an acute or right angle. A dimension of the holding projection transverse to the longitudinal extent is smaller than a smallest diameter of the hand region.