Low-Profile Drawer Slide Self-Closing With Damped Latch Engagement
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Solution Overview
Problem
Conventional self-closing drawer slides face issues such as misalignment due to varying mounting spaces, which affects the engagement mechanism's reliability, and can result in damage from excessive slamming, and have a high profile that limits sliding length.
Innovation Solution
A self-closing mechanism featuring a slider, latch, and stationary housing with a damping mechanism, where the latch rotates and locks to ensure reliable engagement and smooth closure, and a low profile design allowing for increased sliding length and reduced damage from impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the drawer slide is designed to accommodate varying mounting spaces by expanding its width, then the adaptability to different cabinet configurations is improved, but the distance between the engagement component and slide component increases causing unreliable engagement
Solution Approach 1:
The engagement component is designed with dynamic adjustability, allowing it to change its position or configuration based on the mounting space width. This enables the component to maintain proper engagement distance regardless of whether the drawer slide is at minimum or maximum expanded width, thereby preserving engagement reliability across varying adaptability conditions.
Solution Approach 2:
The system allows for parameter changes in the engagement mechanism, such as adjustable engagement force, engagement distance, or geometric parameters of the engagement surfaces. By dynamically adjusting these parameters based on the actual mounting space, the system maintains reliable engagement while accommodating different cabinet configurations.
2Extent of automation
If the self closing mechanism is designed with conventional components, then the self-closing function is achieved, but the mechanism allows excessive slamming that can cause damage and malfunction
Solution Approach 1:
The engagement component incorporates a cushioning mechanism that activates before the drawer slide fully closes. This cushioning action gradually reduces the closing speed and absorbs impact energy, preventing excessive slamming while maintaining the automated self-closing function. The cushioning may be implemented through spring elements, dampers, or progressive engagement surfaces.
3Reliability
If the self closing mechanism has a high profile design, then the engagement components can be adequately sized, but the sliding length of the drawer and intermediate members is decreased
Solution Approach 1:
The engagement component design transitions from a conventional high-profile configuration to a low-profile configuration by utilizing alternative spatial arrangements. This may involve changing the orientation of engagement surfaces, using planar engagement geometries, or redistributing the engagement mechanism's volume across different dimensions. The result is adequate engagement capability maintained while significantly reducing the profile height that would otherwise limit sliding length.
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 mechanism ensures reliable self-closing functionality across varying mounting widths, reduces damage from slamming, and allows for longer sliding lengths by incorporating a damping system and a low profile design.
Implementation Method 1
a slide component slidably mounted on the cabinet member of the drawer slide and spring biased in the closing direction of the drawer slide
Implementation Method 2
A self-closing mechanism featuring a slider, latch, and stationary housing with a damping mechanism
Data Source
AI summary
A self-closing mechanism for drawer slides includes a stationary housing, a slider, and a latch. The slider is configured to slide relative to the housing, and the latch is configured to translate along with the slider and to rotate within the slider to lock and unlock the slider at predetermined locations. The housing may be coupled to a cabinet member, with a drawer member adapted to engage the latch as the drawer is opened and/or closed. In embodiments of the invention, the self-closing mechanism may include a damper mechanism, such as, e.g., a cylindrical damper or a rotary gear damper.