Can Handle Strap Locking to Prevent Slippage and Crushing

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Solution Overview

Problem

Existing handle solutions for large metal cans, such as coffee cans, are cumbersome, prone to slippage, and can cause the can to be crushed or split, especially for individuals with smaller hands or those who are young or elderly, and often lack efficient storage options.

Innovation Solution

A handle with a grasping member and a strap featuring a tension buffer segment and band lock, made from durable materials like stainless steel, which securely attaches to the can without protruding rivets, allowing easy installation and secure handling, and includes internal protuberances for gripping smooth surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional handle with multiple components and protruding rivets is used, then the handle can provide grasping functionality, but the protruding rivets can tear the skin and the strap is difficult to secure

Engineering Contradiction:
Improveease of securing strapVSAvoidskin tearing from rivets
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The invention removes the harmful protruding rivets from the strap assembly, extracting only the necessary fastening function while eliminating the skin-tearing hazard. The strap uses alternative attachment methods that do not require external rivets protruding from the user-accessible surfaces.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using protruding external rivets to secure the strap, the invention inverts the approach by using recessed or internally-contained fastening mechanisms, turning the harmful external protrusion into an internal or flush-mounted solution.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If a traditional handle design is used, then it can grasp the can, but slippage occurs and the can may be crushed or split open

Engineering Contradiction:
Improvesecure holding of canVSAvoidcan crushing or splitting
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The invention modifies the physical parameters of the strap and its interaction with the can, such as adjusting strap tension distribution, contact surface area, and material properties, to achieve secure holding without excessive localized pressure that could crush or split the can.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The strap design incorporates cushioning or pressure-distributing features that prevent excessive force concentration before damage can occur, ensuring the can is held securely without risking structural damage to the container.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If the strap is made secure to prevent slippage, then handling is improved, but the installation becomes difficult for homemakers and elderly persons

Engineering Contradiction:
Improvesecure embrace of objectVSAvoidease of installation
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The strap assembly is designed to be self-installing or self-securing, allowing users to attach and secure the handle without requiring specialized tools or complex procedures. The mechanism automatically locks or secures itself upon simple user action, making installation accessible to homemakers and elderly persons.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The handle assembly is divided into modular segments including the strap, fastening mechanism, and mounting components, allowing for simple step-by-step installation where each segment can be attached independently without requiring complex assembly procedures.

Inventive Principle:
Principle #1Segmentation

4Reliability

If the handle is designed for secure handling, then spilling is prevented, but storage flexibility is reduced

Engineering Contradiction:
Improveprevention of spillingVSAvoidstorage flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The handle design incorporates dynamic or adjustable features that allow the strap tension and positioning to be modified, enabling the same handle to provide secure holding when in use while allowing for compact or flexible storage configurations when not in use.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS7581770B2Can handle
Publication Date: 2009.09.01 JONES HENRY JAMES
  • US7581770B2 patent drawing
  • US7581770B2 patent drawing
  • US7581770B2 patent drawing

AI summary

Handle for an object includes a member for grasping with the hand, and a strap attachable to the member for embracing and securing the object. The strap includes a band portion having a tension buffer segment, and a band lock. The handle can be found in combination with the object, which, for example, may be a large metal coffee can.