Multipurpose Tool Carabiner Nesting for Compact Storage

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Solution Overview

Problem

Multipurpose tools with carabiners face challenges in achieving a compact form while maintaining ruggedness and lightweight design, as the carabiner often limits the tool's compactness and increases size.

Innovation Solution

A multipurpose tool design where a tool, such as a bit driver, is at least partially disposed within the carabiner between its sidewalls when the handles are in the closed position, allowing the tool to be securely stored and reducing the overall size, and a handle with an integral carabiner that can be formed by stamping and bending a workpiece to define a carabiner with an engagement aperture and a pocket for storing extra bits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a carabiner is added to a multipurpose tool for secure attachment, then the tool can be securely clipped to a belt loop, but the tool size increases and compactness is reduced

Engineering Contradiction:
Improvesecure attachment capabilityVSAvoidtool size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The bit driver is nested within the carabiner structure, with the bit driver body positioned inside the carabiner's opening when the tool is in the closed position. This nesting arrangement allows the carabiner to provide secure attachment functionality while accommodating the bit driver without significantly increasing overall tool volume.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The carabiner and bit driver are merged into a single integrated structure where the carabiner serves dual purposes: providing secure attachment capability and housing the bit driver. This merging eliminates the need for separate components and reduces overall tool size while maintaining both functionalities.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If extra bits are stored with the multipurpose tool for increased functionality, then bit availability is improved, but the tool size increases

Engineering Contradiction:
Improvebit functionalityVSAvoidtool size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

Extra bits are stored within the carabiner structure or handle cavity, nesting them inside the existing tool volume. This allows multiple bits to be carried without proportionally increasing tool size, as the bits occupy space already allocated for the bit driver and carabiner mechanisms.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Volume of moving object

If the multipurpose tool is made foldable for compactness, then the closed position size is reduced, but the complexity of the tool structure increases

Engineering Contradiction:
Improveclosed position sizeVSAvoidtool structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The tool is divided into separable components (handles, bit driver, carabiner) that can move relative to each other through defined pivot points. This segmentation allows the tool to fold into a compact closed position while maintaining structural integrity through standardized connection points and movement paths.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP1944133B1Multipurpose tool
Publication Date: 2013.06.26 LEATHERMAN TOOL GROUP INC
  • EP1944133B1 patent drawingFigure 1
  • EP1944133B1 patent drawingFigure 2
  • EP1944133B1 patent drawingFigure 3

AI summary

A multipurpose tool (10) is provided that includes a carabiner (24) and that is designed to fold into a closed position that is relatively compact. As such, the carabiner (24) of the multipurpose tool (10) can be utilized to secure the multipurpose tool (10) to a user, such as to a belt loop or the like, while permitting the multipurpose tool (10) to be folded into a compact form. A handle (12) that includes a carabiner (24) and that can be utilized by such a multipurpose tool (10) as well as a method of forming the handle (12) are also provided. Still further, a multipurpose tool (10) is provided that includes a handle (12) defining a pocket (56) for storing at least one bit (64) in instances in which the bit (64) is not engaged by the bit driver (22), thereby reducing the likelihood that the bit (64) will be lost or otherwise separated from the multipurpose tool (10).