Drawer Slide Assembly With Roller Support for Stable Low-Noise Motion
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Solution Overview
Problem
Existing slide assemblies for drawers, such as undermount slides, face issues with stability and noise due to lack of effective support mechanisms and rigidity, leading to unbalanced weight distribution and shaking during use.
Innovation Solution
A slide assembly comprising a bracket with horizontal and vertical portions, rail members with corresponding roller and ball bearings, and auxiliary sliding members to provide stable rolling contact and support, enhancing stability and reducing noise through strategically placed roller and ball bearings and bearing raceways.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple support mechanism is used between the outer rail and inner rail, then the device complexity is reduced, but the stability and noise reduction deteriorate due to lack of effective rolling support
Solution Approach 1:
The support mechanism is segmented into multiple independent roller bearings (first roller bearing, second roller bearing, third roller bearing, fourth roller bearing) positioned at different locations between the outer rail and inner rail. Each roller bearing independently provides rolling support at its specific position, collectively ensuring stable drawer operation while maintaining structural simplicity through modular components.
Solution Approach 2:
Roller bearings are introduced as intermediary elements between the outer rail and inner rail to provide rolling contact support. These intermediary rollers mediate the interaction between the rails, enabling smooth relative movement while reducing direct friction and improving drawer stability without requiring a complex support structure.
2Stability of the object's composition
If roller bearings are added to provide rolling contact support, then the stability improves, but the device complexity increases
Solution Approach 1:
The roller bearings serve multiple functions simultaneously: they provide rolling contact support to reduce friction, enable smooth drawer movement, reduce operational noise, and distribute mechanical loads. By using a single component type (roller bearings) that performs multiple functions, the design achieves improved stability without proportionally increasing device complexity.
3Force
If the cabinet rail is provided with a horizontal offset flange to support weight, then the load bearing capacity improves, but the rigidity deteriorates causing drawer shaking and noise
Solution Approach 1:
The rigid mechanical support function of the horizontal offset flange is replaced by roller bearings that provide support through rolling contact. This substitution transforms the support mechanism from a rigid structural element to a dynamic rolling interface, maintaining weight bearing capacity while eliminating the rigidity issues that cause drawer shaking and noise.
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 enhanced stability and reduces noise by ensuring proper rolling contact and support between the bracket and rail members, addressing the issues of weight distribution and rigidity in drawer slides.
Implementation Method 1
The first roller bearing being disposed between the first vertical portion of the bracket and the second vertical portion of the first rail member for providing a rolling contact
Implementation Method 2
providing a rolling contact
Implementation Method 3
the first ball bearing being disposed between the first vertical portion of the first rail member and the first vertical portion of the second rail member for providing a free rolling direction contact
Data Source
AI summary
A slide assembly includes a bracket, having a first horizontal portion and a first vertical portion; a first rail member slidably disposed on the bracket, having a first horizontal portion, a first vertical portion, a second horizontal portion, and a second vertical portion; a second rail member slidably disposed on the first rail member, having a first vertical portion, a first horizontal portion and a second vertical portion; a first auxiliary sliding member disposed between the bracket and the first rail member; a second auxiliary sliding member disposed between the first rail member and the second rail member; and a plurality of ball bearings including at least one first ball bearing and at least one second roller bearing.