Trash Can Cover Rotating Device With Impact Cushioning

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Solution Overview

Problem

Trash can covers are prone to damage due to unexpected external forces when they are suddenly closed or lodged, leading to direct collisions and potential damage to the cover and the trash can.

Innovation Solution

A rotating device for the trash can cover that includes an external force applying part and a mediating part, which prevents the transmission of external forces to the cover when it is limited by a second external force, and a movement speed decreasing mechanism to reduce the impact of sudden movements, thereby minimizing damage and noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the cover is suddenly closed by weight of the cover, then the cover automatically closes to block smell, but the cover or trash can is damaged due to direct collision

Engineering Contradiction:

Improveautomatic closing functionVSAvoidcover and trash can durability

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent introduces a cushioning member positioned between the cover and the trash can body that absorbs impact energy during sudden closing. This cushioning element is pre-installed to prevent direct collision, thereby protecting both the cover and trash can from damage while maintaining the automatic closing function.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

A mediating structure is introduced between the cover and the trash can body to prevent direct contact during sudden closing. This intermediary element acts as a buffer that reduces the impact force, allowing the cover to close automatically without causing damage to the trash can or cover itself.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If external force is applied to open the cover, then the cover can be opened, but the cover or member standing the cover is damaged when standing is limited by unexpected external force

Engineering Contradiction:

Improvecover opening functionVSAvoidcover and support member durability

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The patent introduces a mediating structure between the cover and the trash can body that prevents direct transmission of external force when the cover's standing is limited. This intermediary element absorbs and distributes the applied force, protecting both the cover and support members from damage while maintaining the ability to open the cover normally.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If the cover stands quickly, then the cover opens rapidly for convenience, but noise is generated and damage occurs due to sudden movement

Engineering Contradiction:

Improvecover opening speedVSAvoidnoise and damage from sudden movement

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent incorporates cushioning elements that are pre-positioned to absorb impact energy during rapid cover movement. These cushioning members reduce the noise generated by sudden cover standing while preventing damage to the cover and trash can, thus maintaining operational convenience without the harmful effects of sudden movement.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent converts the harmful impact energy from sudden cover movement into beneficial cushioning force. By introducing energy-absorbing materials or structures, the sudden movement that causes noise and damage is transformed into a controlled deceleration process, where the impact energy is dissipated harmlessly through the cushioning mechanism.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Data Source

PatentEP3275807B1Trash can with device for rotating the cover of the trash can

Publication Date: 2019.11.27 JANIBELL INC

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Figure 3(a)~3(b)

AI summary

Disclosed is a device for rotating a cover (C) of a trash can (T), which is mounted to a trash can formed with a predetermined space by a frame (P) and a cover (C), and makes the cover be stood based on the frame so that the predetermined space is exposed to the outside, or makes the cover (C) be lodged based on the frame (P) so that the predetermined space is disconnected with the outside, the device including: an external force applying part (10) rotated by first external force based on a first fixed rotating shaft (S1) fixed to the frame (P); and a mediating part (20), which mediates the external force applying part (10) and the cover (C), and is interconnected to a rotation of the external force applying part (10) by the first external force to make the cover (C) be stood based on the frame, and makes the cover be lodged based on the frame by weight of the cover when the first external force is released, in which when the standing of the cover (C) is limited by second external force, the mediating part (20) is transformed by the rotation of the external force applying part (10) by the first external force and prevents the first external force from being transmitted to the cover (C).