Pressing Jaw Grip Projection for One-Handed Switch Actuation
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Solution Overview
Problem
Existing pressing tools face challenges in ergonomics and handling, particularly in transitioning from a single-handed operation to activate the actuating switch while maintaining grip on the tool, especially when pivoting the pressing jaws into an open position.
Innovation Solution
The design incorporates a pin-like holding projection protruding from the housing at an acute angle to the longitudinal axis, with a transverse dimension smaller than the hand region, providing a complete circumferential clearance and integrating the actuating switch into the housing's front face, allowing a finger to slide from the pressing jaw to the switch during a single-handed operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the actuating switch is arranged on the housing in a conventional manner, then the switch is accessible for activation, but the user's hand slips off during single-handed operation when transitioning from gripping the pressing jaw to activating the switch
Solution Approach 1:
The holding projection serves as an intermediary element between the user's finger and the actuating switch. It provides a stable gripping surface that mediates the transition from holding the pressing jaw to activating the switch, preventing the hand from slipping off during single-handed operation.
Solution Approach 2:
The holding projection extends in a direction that is not parallel to the longitudinal axis of the housing, creating a new spatial dimension for finger placement. This angular extension provides an additional gripping surface that facilitates the transition motion from the pressing jaw to the actuating switch.
2Ease of operation
If the holding projection extends parallel to the longitudinal axis of the housing, then the structure is simple, but the finger cannot smoothly transition from the pressing jaw to the actuating switch
Solution Approach 1:
The holding projection is designed with asymmetric geometry, extending at an angle that is not parallel to the longitudinal axis of the housing. This asymmetric configuration creates a favorable surface orientation for finger placement and transition motion, improving ergonomics while adding minimal geometric complexity.
Data Source
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AI summary
The disclosure pertains to a pressing tool (1) with a housing (3) and with pressing jaws (8, 9) arranged outside the housing (3), wherein one or both pressing jaws (8, 9) furthermore can be pivoted into the open position by a hand (35) of a user by acting upon the respective pressing jaw (8, 9) on an end (25) of the pressing jaw (8, 9) that faces the housing (3), wherein an actuating switch (7) furthermore is provided, and wherein the actuating switch (7) furthermore is formed on a holding projection (28) that incidentally protrudes from the housing (3). In order to advantageously enhance a pressing tool of the type in question with respect to its use, it is proposed that the pin-like holding projection (28), which has a longitudinal extent (c) with a free end (29), incidentally protrudes from the housing (3) at an acute or right angle (α) referred to the longitudinal axis (x) starting from the housing (3), that a dimension (d) of the holding projection (28) transverse to the longitudinal extent (c) is smaller than a smallest diameter (b) of the hand region (4), that a complete circumferential clearance of the holding projection (28) with respect to the housing (3) is realized in a plane (H) that extends through the holding projection (28) perpendicular to the longitudinal extent (c), and that the actuating switch (7) forms a portion of the front face (26).