U-Shaped Fastening Device With Elastic Region

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Solution Overview

Problem

Existing fastening devices for recording tools lack flexibility in attachment options, limiting their usability on various surfaces such as clothing, furniture, and walls.

Innovation Solution

A fastening device with a U-shaped fastening part that includes a first investment surface and a second investment area, featuring a stitch-like stiff or bending lake that can be solved between the surfaces, allowing for flexible attachment to different wearing devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional fastening device with fixed structure is used, then the attachment method is simple, but the adaptability to different surfaces (clothing, furniture, walls) is limited

Engineering Contradiction:
Improveadaptability to different surfacesVSAvoidfastening device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The fastening device is divided into separate functional components: a support part (for different surfaces), a fastening part (U-shaped structure), and a closure part. This segmentation allows each component to be optimized for its specific function while maintaining overall adaptability across different attachment surfaces.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support part can be configured for different surfaces (clothing, furniture, walls), and the U-shaped fastening part with elastic region provides a universal attachment mechanism that works across multiple surface types. The closure part with hinge joint enables both latching and spreading motions to accommodate various fastening scenarios.

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

2Strength

If the fastening part is made rigid for secure attachment, then the attachment strength is improved, but the ability to position the support part between bearing surfaces is reduced

Engineering Contradiction:
Improveattachment strengthVSAvoidpositioning ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The fastening part incorporates an elastic region that allows dynamic deformation. The U-shaped structure can be elastically deformed to spread the legs apart for positioning the support part, then returns to its original shape to provide secure attachment. This dynamic behavior resolves the contradiction between rigidity for strength and flexibility for positioning.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The elastic region changes the physical state of the fastening part from rigid to flexible during the positioning phase, then maintains a rigid locked state during attachment. The elastic prestress in the legs provides the necessary force to maintain secure attachment after positioning is complete.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the closure part is always locked to prevent detachment, then the security of attachment is improved, but the flexibility to attach and detach the support part is reduced

Engineering Contradiction:
Improveattachment securityVSAvoidattach/detach flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The closure part is designed with a hinge joint that allows it to dynamically switch between locked and unlocked states. When locked, it provides secure attachment preventing detachment. When unlocked, it allows easy attachment and detachment of the support part. This dynamic state change enables both security and flexibility.

Inventive Principle:
Principle #15Dynamics

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

Enables secure and flexible attachment of recording devices to various surfaces, ensuring the tool is always ready for use and safely stored, preventing unauthorized access.

Implementation Method 1

The first leg and the second leg of the U-shaped fastening part are connected to each other, for example, by means of an elastic region. To arrange the support part between the legs, a free end region of the second leg can be spread apart from the first leg, deforming the elastic region.

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The second leg can be provided with an elastic prestress. In this way, the fastening device, and thus the receiving device, can be prevented from moving relative to the support part and from becoming detached from the support part.

Methodology Applied
Scientific EffectElastic prestress: Elasticity

Data Source

PatentEP4544953A1Fastening device for a holder for a tool and fastening device with a support and support
Publication Date: 2025.04.30 MARTOR
  • EP4544953A1 patent drawingFigure 1a~1b
  • EP4544953A1 patent drawingFigure 2
  • EP4544953A1 patent drawingFigure 3

AI summary

Fastening device for attaching a portable tool holder to a garment or piece of furniture, wherein the holder is provided with a receiving space for receiving the tool and with a holding device for storing the tool holder on the fastening device, with second holding means associated with the fastening device which cooperate with first holding means of the fastening device, wherein the fastening device has a first contact surface and a second contact surface which face each other, wherein a web-like support element can be detachably positioned between the first contact surface and the second contact surface.