Receptacle Latching Mechanism Controlled Gate Opening Under Load
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Solution Overview
Problem
Current waste receptacle designs face difficulties in releasing latches when full, leading to uncontrollable opening of the waste storage wall under load, posing safety risks and operational challenges.
Innovation Solution
A latching mechanism is introduced that includes a latch and locking arm system, where the latch rotates to a latched orientation to prevent rearward and upward movement of the locking arm, allowing controlled opening and closing of the gate, even under load, by sliding along a surface and disengaging from the locking arm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional latches are used to hold the gate closed, then the gate can be secured against the forces exerted by waste contents, but the latches become difficult to release under load and may cause sudden uncontrollable opening
Solution Approach 1:
The latch mechanism is designed to dynamically change its engagement characteristics based on operational phase: during normal closure it provides strong static holding force through the locking arm engaging the latch body, while during opening it transitions to allow controlled movement as the locking arm disengages from the latch body and follows the cam surface, enabling easy release under load
Solution Approach 2:
The cam surface is pre-configured to guide the locking arm through a specific trajectory that prepares the system for controlled opening: as the gate begins to move, the cam surface redirects the locking arm upward and away from the latch body before full disengagement, preventing sudden release and enabling gradual, controlled opening even under waste load
2Reliability
If the latch engages the locking arm to prevent gate movement, then secure closure is achieved, but sudden release causes the gate to swing open rapidly and uncontrollably under load
Solution Approach 1:
The cam surface acts as an intermediary element between the locking arm and the gate movement: it mediates the transition from engaged to disengaged state by providing a controlled path for the locking arm to follow during opening, transforming the sudden release into a gradual, controlled motion that prevents harmful uncontrolled swinging
Solution Approach 2:
The cam surface geometry is designed to cushion the release process in advance: as the locking arm begins to disengage, the cam surface redirects it along a controlled trajectory that gradually reduces engagement force before complete release, preventing sudden shock and uncontrolled gate movement even when the gate is full of waste
Data Source
AI summary
A receptacle is provided for holding a quantity of solid material. The receptacle includes a container having an open end, and a gate operably connected to the container so as to be rotatable to a closed position structured to prevent solid material from exiting the container through the open end. The gate includes a locking arm mounted thereon. A latching mechanism is operably connected to the container and includes a latch rotatable to a latched orientation structured to contact the locking arm to prevent the gate from being rotated out of the closed position. The locking arm is structured to move rearwardly and upwardly during rotation of the gate out of the closed position. The latch is structured so that contact between the latch and the locking arm when the latch is in the latched orientation prevents rearward and upward movement of the locking arm.