Replaceable Pliers Die With Interlocking Halves

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Solution Overview

Problem

Existing pliers solutions for pressing work pieces, such as crimping pliers, face challenges in efficiently adapting to different types and sizes of connector elements due to limitations in force transmission, complex replacement processes, and storage issues that lead to mixing of die halves and increased weight or poor crimping results.

Innovation Solution

A die system comprising two interlocking halves with guide and connecting elements for secure attachment to pliers and storage, allowing for easy and quick replacement without additional tools, ensuring secure holding during operation and storage, and enabling flexible combination of different die halves for various tasks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If replaceable jaws with pins are used in pliers, then adaptability to different work pieces is improved, but force transmission capability deteriorates

Engineering Contradiction:

Improveadaptability to different work piecesVSAvoidforce transmission capability

Core Design Contradiction:

Adaptability or versatilityVSForce

Solution Approach 1:

The die is divided into two separate halves that can be joined together to form a complete pressing tool. Each die half can be independently manufactured and then connected through connecting elements, allowing the system to maintain structural integrity while enabling adaptability through different die half combinations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The pliers are designed with a universal interface that can accommodate multiple types of die halves through standardized connecting elements. This allows a single pliers body to perform multiple pressing operations by simply changing the die halves, achieving versatility without compromising the force transmission capability of the main body.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple pressing profile inserts are stored in the handles of pliers, then adaptability is improved, but device weight increases

Engineering Contradiction:

Improvenumber of pressing profile insertsVSAvoidweight of pliers

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The pressing profile inserts are extracted from the handle storage and integrated directly into the die structure. The die halves themselves serve as the storage and delivery mechanism, eliminating the need for separate handle-mounted storage compartments and reducing overall device weight while maintaining adaptability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The storage function and the pressing function are merged into a single integrated structure. The die halves both store the pressing profiles and deliver the pressing action, eliminating redundant components and reducing weight compared to having separate handle-mounted storage for multiple inserts.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If individual pressing profile inserts are detachably held by locking connection, then ease of replacement is improved, but device complexity increases

Engineering Contradiction:

Improveease of replacementVSAvoidlocking connection mechanism

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The connecting elements incorporate a dynamic locking mechanism that automatically engages and disengages based on the insertion and removal actions. The locking connection is designed to be self-actuating, requiring minimal user intervention while maintaining secure attachment during operation, thus simplifying the overall replacement process.

Inventive Principle:

Principle #15Dynamics

4Stability of the object's composition

If die halves are stored separately in storage fixture, then organization is improved, but mixing of die halves may occur

Engineering Contradiction:

Improveorganization of die halvesVSAvoidprevention of mixing

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The die halves are designed with asymmetric connecting elements that have specific geometric features preventing incorrect pairing. The connecting elements include shaped interfaces that only fit together in the correct orientation and combination, making it physically impossible to mix incompatible die halves while maintaining organized storage.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS9403264B2Replaceable die for pliers, pliers having such a die, and storage fixture

Publication Date: 2016.08.02 RENNSTEIG WERKZEUGE GMBH

AI summary

The invention relates to a replaceable die for pliers to press workpieces, such as for crimping pliers for pressing electrical connector elements. By replacing the die, the pliers can be adapted to the press operation to be performed, such as adapting a crimping pliers to different types and sizes of the connector elements to be pressed. The die according to the invention comprises a first and a second die half that can be inserted into the pliers together and removed from the pliers together. The two die halves each have a guide for this purpose. Both die halves each further have a first connecting element for releasably attaching the die to the pliers. Both die halves finally each have a second connecting element for releasably attaching the die to a storage fixture. This ensures that the die formed by the two die halves is held in the storage fixture during or after removal from the pliers, and remains therein for storage.