Motorized Pliers Motor Below Actuator Axis
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Solution Overview
Problem
Existing motor-driven pliers designs lack a favorable handling configuration, leading to inefficiencies in torque transmission and compactness, particularly in crimping applications where precise movement and high forces are required.
Innovation Solution
A design where the electric motor's longitudinal axis is aligned below the activating part, allowing for a compact arrangement with a worm wheel drive, enabling precise movement and high force application without significant torque transmission through a joint, and featuring a U- or L-shaped configuration for enhanced handling and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the motor is positioned above the activating part, then the grip portion can be provided independently, but the design becomes less compact and motor extension beyond the joint increases
Solution Approach 1:
The motor is repositioned from a vertical arrangement (above the activating part) to a horizontal arrangement (below the activating part), changing the spatial dimension of motor placement. This dimensional shift enables a more compact overall design while maintaining proper handling configuration and grip portion independence.
2Volume of moving object
If the movable pliers limb transmits torque through the joint, then the joint connection is maintained, but the design becomes less compact and motor extension beyond the joint increases
Solution Approach 1:
The motor is extracted from the traditional position where it would extend beyond the joint, and repositioned below the activating part. This extraction eliminates the need for the movable pliers limb to transmit significant torque through the joint, enabling a more compact design while maintaining sufficient joint connection strength for the application.
3Force
If the handle area extends beyond the joint, then the activating part can be positioned for torque transmission, but the overall device length increases
Solution Approach 1:
Instead of extending the handle area beyond the joint to achieve torque transmission, the motor positioning is inverted to below the activating part. This inversion allows torque transmission to be achieved through a different mechanical arrangement that maintains a shorter overall device length.
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
This configuration results in a compact, stable, and safe pliers design that facilitates precise crimping operations with reduced motor extension beyond the joint, enabling efficient handling and adaptable crimping processes across various applications.
Implementation Method 1
an electric motor (9), which acts on the activating part (15)
Implementation Method 2
a worm wheel drive, enabling precise movement and high force application
Data Source
Figure 1
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AI summary
The invention relates to pliers (1), such as crimping pliers, comprising an acting part (31), for moving a movable plier leg (7) relative to a stationary plier leg (6) for example, wherein furthermore the acting part (31) can be moved in a motorized manner. In order to specify such pliers in an advantageous embodiment, a longitudinal axis (L) of an electric motor (9) provided in order to drive the acting part (31) extends below the acting part (31) when the motor is horizontally oriented.