Container Door Link Member Rattle Prevention
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Solution Overview
Problem
Containers in the prior art suffer from door rattling issues when link members move, leading to inconvenience and reduced merchantability, and it is difficult to detect freight capture attempts as traces are not easily recognizable.
Innovation Solution
A container design incorporating a slide rotation portion with a movement limit member, including a support pipe with an elastic body to limit the movement of a link member, preventing door rattling and allowing for secure, traceable opening and closing of doors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If link members are made movable to enable door opening/closing operation, then ease of operation is improved, but door rattling occurs and merchantability deteriorates
Solution Approach 1:
The link member is designed to be dynamically adjustable between two states: movable during door opening/closing operations to maintain ease of operation, and fixed in position during normal door operation to prevent rattling. This dynamic transformation resolves the contradiction by allowing the system to switch between operational modes.
Solution Approach 2:
The movable limit member changes the positional parameter of the link member from a fixed state to a movable state during door operation, and then returns it to a fixed state. This parameter change enables the link member to provide both movement capability and stability at different operational phases.
2Measurement precision
If seal is attached only to right door to enable traceable opening, then detection precision is improved, but ease of operation deteriorates as left door cannot be opened freely
Solution Approach 1:
The door system is segmented into right door and left door with different functional assignments. The right door carries the seal for detection purposes, while the left door is equipped with the movable link member mechanism for operational flexibility. This segmentation allows each door to have specialized functions that resolve the contradiction between detection and operation ease.
Solution Approach 2:
The movable link member acts as an intermediary mechanism that enables the left door to be opened freely for operational convenience, while the seal on the right door independently provides detection capability. The link member mediates between the need for easy operation and the need for secure sealing.
3Ease of operation
If plate is made foldable to enable left door opening, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The plate function is extracted and replaced by the movable link member mechanism. Instead of making the plate foldable (which would add complexity), the invention removes the plate's door-blocking function and replaces it with a dedicated link member that provides the same operational capability through a simpler mechanical linkage.
Solution Approach 2:
The link member dynamically changes its configuration from a blocking position to an retracted position during door opening, providing the necessary clearance without requiring complex foldable plate mechanisms. This dynamic movement achieves the same result with simpler structure.
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
The solution effectively prevents door rattling and enhances user convenience by limiting link member movement, allowing for secure operation and improved merchantability without the need for separate locking devices, while making freight capture attempts more detectable.
Implementation Method 1
a movement limit member connected between the movement member and one side of the link member to limit the movement of the link member
Data Source
AI summary
A container is provided, which includes a container main body having a loading space formed therein to load freight therein; a door opening/closing a freight doorway formed on one side of the container main body and including a first door of which one side is hinge-engaged with the container main body by a first hinge portion, and a second door of which one side is hinge-engaged with the other side of the first door by a second hinge portion; a slide rotation portion including a slide rail provided on the container main body, a movement member connected to the second door to slidably move along the slide rail, a link member connected to the movement member and an inner side surface of the second door to make the door rotate at 0 to 270 degrees around the first hinge portion, and a movement limit member connected between the movement member and one side of the link member to limit the movement of the link member; and a locking portion locking/unlocking the door with respect to the container main body. The capturing of freight can be originally prevented by a finished product itself without any separate locking device, and the merchantability and convenience in use can be improved through limiting of movement of a link member using the movement limit member to prevent the rattling of doors.