Slide Assembly Retractable Mechanism for Stable Drawer Motion
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Solution Overview
Problem
Conventional slide assemblies with automatic retractable devices are not cost-effective and durable, leading to a shorter lifespan and instability in the sliding motion.
Innovation Solution
A slide assembly with an automatic retractable device featuring a stationary rail, a sliding rail with a guiding member and protuberance, a resilient member, and an engaging plate that engages with the protuberance to retract the sliding rail into the stationary rail, utilizing first and second inclined planes and resilient members for a reliable and durable sliding mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional automatic retractable devices are used, then the drawer can retract automatically, but the device is not cost-effective and has a shorter lifespan
Solution Approach 1:
The retractable device is segmented into multiple independent components: a first resilient member (spring) for providing retraction force, a second resilient member for engaging with the sliding rail, a retainer with a recess and inclined plane, and an engaging plate with an engaging rod. This segmentation allows each component to be manufactured separately using simple, cost-effective processes while maintaining high reliability through their coordinated interaction.
Solution Approach 2:
The device utilizes the sliding rail's own movement to trigger the retraction mechanism. When the sliding rail is pushed inward, its movement automatically engages the engaging rod with the second resilient member, which then activates the retraction force from the first resilient member. This self-service mechanism eliminates the need for external actuators or complex control systems, reducing manufacturing costs while ensuring reliable automatic retraction.
2Stability of the object's composition
If conventional automatic retractable devices are used, then the drawer can retract automatically, but the sliding motion is unstable
Solution Approach 1:
The engaging rod acts as an intermediary element between the sliding rail and the resilient members. It transfers and controls the forces between these components, ensuring smooth and stable engagement. The inclined plane of the retainer serves as another intermediary that guides the engaging rod's movement, providing controlled interaction that stabilizes the sliding motion while protecting the components from shock and wear.
Solution Approach 2:
The device utilizes changes in the physical state and position of components during operation. The resilient members change their compression state to provide varying retraction forces, the engaging rod changes its position along the inclined plane, and the sliding rail changes its position relative to the stationary rail. These parameter changes enable smooth, controlled, and stable sliding motion throughout the retraction cycle.
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 provides a cost-effective, reliable, and durable sliding mechanism with a longer lifespan, ensuring steady and automatic retraction of the sliding rail into the stationary rail, enhancing the overall performance and longevity of the slide assembly.
Implementation Method 1
a first resilient member connected between said sliding member and said fixing base
Implementation Method 2
a second resilient member; wherein said engaging rod of the engaging plate is urged by the second resilient member
Data Source
AI summary
A slide assembly having an automatic retractable device includes a sliding member, a fixing base, a retainer, a guiding member provided on a sliding rail, and a stationary rail. The sliding rail is free to move with respect to the stationary rail. The sliding member is slidably disposed in the stationary rail. The fixing base is secured at the end of the stationary rail. The retainer is disposed in the stationary rail. The sliding member is linked to a first resilient member, which urges the sliding member back to the fixing base. An engaging plate is provided on the sliding member. The engaging plate has a first end and a second end. The first end of the engaging plate is pivotally connected to the sliding member. An engaging rod is provided on the second end of the engaging plate.