Sliding Rail Auto-Close Damping to Prevent Shock and Rebound
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Solution Overview
Problem
Existing automatic closing apparatuses for sliding containers often cause deformation or damage to the container or its contents due to shock during closure, and may rebound open if excessive force is applied.
Innovation Solution
An automatic closing apparatus with a damping unit that absorbs shock when the container is closed, featuring a damper with a shock absorption part and a damper rod, which is activated when the outer surface of the damper's rear end contacts the housing's inner surface, allowing the container to be slowly closed and preventing rebound when forces exceed the critical load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If an automatic closing apparatus uses elastic force to automatically close the container, then the container can be closed automatically, but the container or objects stored in the container may be deformed or damaged by shock generated during closing
Solution Approach 1:
The patent introduces a damping unit with a damper that is activated before the container fully closes to cushion the closing process. The damper absorbs shock energy during the closing motion, preventing damage to the container and its contents while maintaining the automatic closing function. This is achieved by positioning the damper to engage during the closing stroke and dissipate kinetic energy through damping mechanisms.
2Speed
If excessive force is applied to close the container, then the container closes quickly, but the container may rebound open due to repulsive force generated by collision between sliding apparatus parts
Solution Approach 1:
The patent employs feedback mechanisms where the damping unit provides real-time resistance during the closing process. As the container approaches closure, the damper adjusts its damping force based on the closing speed and position, preventing excessive force application. This feedback control ensures smooth deceleration and prevents rebound by counteracting collision forces between sliding apparatus parts.
3Object-affected harmful factors
If a damping unit is added to absorb shock during closing, then the container can be slowly moved in the close direction without damage, but the device complexity increases
Solution Approach 1:
The patent merges the damping unit with the existing housing structure of the automatic closing apparatus. The damper is integrated into the housing rather than being a separate external component, and the damping function is combined with the automatic closing mechanism. This integration reduces overall device complexity while maintaining effective shock absorption during the closing operation.
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 apparatus effectively prevents deformation and damage to the container or its contents during closure and ensures the container remains closed even under forces greater than the critical load by gradually moving the container through the absorption of shock, thus maintaining the closed position.
Implementation Method 1
the damping unit begins to absorb shock so that the container can be slowly moved in the close direction
Implementation Method 2
when an outer surface of a rear end of a damper comes into contact with an inner surface of a rear end of the housing
Data Source
AI summary
Disclosed herein is an automatic closing apparatus for a sliding apparatus. The sliding apparatus comprises a fixed rail, a movable rail, and the automatic closing apparatus. The automatic closing apparatus includes a body, a slider, a housing, a damping unit, and an elastic body. The body is provided on the fixed rail and has an actuating space therein. The body includes: a guide wall that is provided in the actuating space and includes a curved guide part and a linear guide part; and a receiving space formed adjacent to the curved guide part. The slider is locked to or unlocked from a locking member of the movable rail and slides in an open or close direction under guide of the guide wall. The housing is coupled to the body. The damping unit is installed in the housing. The elastic body is fastened to the housing and the slider.