Front-Door Trash Bin Assembly for Lift-Free Bag Removal

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Solution Overview

Problem

Existing trash bins require users to lift heavy or full garbage bags, which can be difficult for disabled individuals or adults handling bulky contents, and moisture can cause bags to stick to the can, making removal cumbersome.

Innovation Solution

A trash bin design with a front door and a lid assembly that allows for secure bag placement without lifting, featuring a bag holder and door mount that clamp the bag in place, enabling removal by opening the door and displacing the lid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users manually lift and remove garbage bags from traditional trash bins, then the bag can be removed, but it requires significant physical effort especially when bags are full or heavy

Engineering Contradiction:
Improveease of bag removalVSAvoidweight of garbage bag
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The patent introduces a mechanical intermediary system consisting of a door-mounted bag holder and a lid-mounted bag holder that work together to support and guide the garbage bag. The door holder initially supports the bag opening, then the lid holder engages to transfer and guide the bag outward, eliminating the need for users to directly lift heavy bags.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The bag removal function is segmented into two distinct phases handled by separate components: the door bag holder manages the initial bag support and detachment from the bin, while the lid bag holder manages the bag transfer and guidance during removal. This segmentation allows each component to be optimized for its specific function and reduces the physical effort required.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If garbage bags are secured tightly in the bin to prevent slippage, then bag stability is improved, but bag removal becomes more difficult

Engineering Contradiction:
Improvebag stabilityVSAvoidease of bag removal
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent employs dynamic engagement and disengagement mechanisms. The door holder and lid holder can be positioned to securely clamp the bag during storage, then dynamically transition to a release position that facilitates easy removal. The holders move between engaged and disengaged states, adapting to the operational requirements of either securing or removing the bag.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary action by having the door holder initially secure the bag opening in place before removal begins. This preliminary securing action stabilizes the bag during the transition phase, and then the lid holder engages to prepare the bag for guided removal, making the overall process smoother and easier.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If a front door is added to the trash bin to enable bag removal without lifting, then ease of operation improves, but device complexity increases

Engineering Contradiction:
Improveease of bag removalVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The door serves multiple functions: it acts as a structural closure for the bin, provides a mounting surface for the door bag holder, and serves as a leverage point for the mechanical advantage system. The lid similarly serves as both a closure and a mounting surface for the lid bag holder, reducing the need for separate dedicated components.

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

Solution Approach 2:

The patent creates an equipotential mechanical system where the door holder and lid holder work together at similar height levels, allowing the bag to be transferred horizontally rather than vertically. This reduces the effective lifting distance and equalizes the mechanical advantage required at each stage, simplifying the overall mechanism.

Inventive Principle:
Principle #12Equipotentiality

Data Source

PatentUS12534290B2Trash bin
Publication Date: 2026.01.27 KETER HOME & GARDEN PROD LTD
  • US12534290B2 patent drawing
  • US12534290B2 patent drawing
  • US12534290B2 patent drawing

AI summary

A trash bin comprising a body having side walls, a top lid, a front door, and a garbage bag holding arrangement extending over a top portion of the front door and over a top portion of the side walls, wherein a garbage bag can be removed through the front door.