Detachable Cuff Extension for Remote Hand Tool Actuation

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Solution Overview

Problem

Existing hand tools lack the capability for remote operation, particularly in hard-to-reach areas, and existing remote-controlled tools often require complex setups or tools for attachment and operation.

Innovation Solution

A detachable attachment part with a handling extension that allows for remote control of hand tools, enabling operation via a radio interface and actuation of the tool's actuation button, with an ergonomic design for user convenience and tool-free assembly/disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a remote control system is added to hand tools, then operational flexibility and accessibility to hard-to-reach areas is improved, but device complexity increases

Engineering Contradiction:
Improveremote operation capabilityVSAvoidsystem structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The remote control system is segmented into separate modular components: a cuff attachment part that interfaces with the hand tool, a handling extension with radio transmitter, and the hand tool itself with radio receiver. This modular segmentation allows the remote control functionality to be added without redesigning the entire system, thus improving adaptability while managing complexity through component separation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cuff attachment part serves multiple functions: it mechanically attaches the handling extension to the hand tool, provides structural support for the radio components, and acts as a mounting platform for the remote control interface. This multi-functionality reduces the need for separate dedicated components, thereby adding remote operation capability without proportionally increasing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If a detachable attachment part is used for remote control, then ease of assembly and disassembly is improved, but connection reliability may worsen

Engineering Contradiction:
Improveassembly and disassemblyVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The attachment system transitions from a static permanent connection to a dynamic detachable connection. The cuff is designed with movable clamping elements that can be easily opened and closed to attach or detach the handling extension. This dynamic design maintains ease of assembly while ensuring reliable connection during operation through secure mechanical engagement features such as locking mechanisms and precise fitting surfaces.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cuff attachment part acts as an intermediary component between the handling extension and the hand tool. It provides a standardized interface with complementary mating features that ensure reliable mechanical and electrical connections. The intermediary cuff absorbs the complexity of the connection mechanism, allowing simple attachment and disassembly while maintaining connection reliability through its engineered interface design.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the actuation button is permanently displaced into actuation position by the cuff, then remote actuation is enabled, but manual operation capability is lost

Engineering Contradiction:
Improveremote control functionalityVSAvoidmanual operation flexibility
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The actuation button mechanism is designed to be dynamic rather than fixed. The cuff displaces the button into the actuation position when attached, enabling remote control functionality. However, the button can still be manually pressed by the user when needed, providing operational flexibility. This dynamic design allows the system to adapt between remote and manual operation modes as required.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system provides self-service capability by allowing the user to switch between remote and manual operation modes as needed. The actuation button remains accessible and functional for manual operation even when the cuff is attached and displacing it into the actuation position. This self-service feature ensures that the tool can operate autonomously in either mode without requiring external assistance or complex switching mechanisms.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3691834B1Hand-held tool
Publication Date: 2021.09.01 GUSTAV KLAUKE GMBH
  • EP3691834B1 patent drawingFigure 1
  • EP3691834B1 patent drawingFigure 2
  • EP3691834B1 patent drawingFigure 3~4

AI summary

The invention relates to a hand-held tool (1) that is prepared for remote control, having a handle region (11) and an actuating button (12). In order to further improve a hand-held tool of the type in question with regard to enabling a remote control which is favorable in terms of handling technology, it is proposed that a removable attachment part (13) held in the handle region (11) has a handling extension (23).