Drawer Slide Assembly Buffering for Impact and Noise Reduction

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Solution Overview

Problem

Conventional slide assemblies lack a proper buffering function between the rails, leading to non-smooth operation and noise generation when the drawer is extended.

Innovation Solution

Incorporation of a buffering member between the side portion of the support base and the stop of the first rail, which compresses to reduce impact force and noise during the extension of the second rail.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the movable rail is detachably connected to the fixed rail without a buffering member, then the drawer can be easily removed and installed, but impact force and noise are generated when the drawer is fully extended

Engineering Contradiction:

Improveease of drawer removal and installationVSAvoidimpact force and noise

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A buffering member is introduced as an intermediary element between the support base and the stop of the first rail. This buffering member absorbs impact force and reduces noise when the drawer is fully extended, while not interfering with the detachable connection functionality between the movable rail and fixed rail.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The buffering member is pre-installed in the path of the support base before the drawer reaches the fully extended position. When the support base approaches the stop, the buffering member is compressed in advance to cushion the impact, preventing direct contact between the rigid components and reducing noise.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Strength

If rigid components are used in the slide assembly without buffering, then the structure is simple and strong, but the operation is not smooth and noise is generated

Engineering Contradiction:

Improvestructural strengthVSAvoidnoise and rough operation

Core Design Contradiction:

StrengthVSObject-generated harmful factors

Solution Approach 1:

The buffering member is made of elastic or cushioning material that combines with the rigid rail components to form a composite structure. This allows the assembly to maintain structural strength from the rigid rails while adding noise reduction and smooth operation through the elastic buffering material.

Inventive Principle:

Principle #40Composite materials

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 buffering member effectively reduces impact force and noise by compressing when the support base approaches the stop, ensuring a smoother operation of the slide assembly.

Implementation Method 1

When the side portion of the support base is close to the stop of the first rail, the buffering member is compressed

Methodology Applied

Scientific EffectCompression: Compression

Implementation Method 2

A buffering member is located between the side portion and the stop of the first rail. When the side portion of the support base is close to the stop of the first rail, the buffering member is compressed

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS8485616B2Slide assembly with buffering member for reducing impact and noise

Publication Date: 2013.07.16 KING SLIDE WORKS CO LTD

AI summary

A slide assembly includes a first rail, a second rail movable connected to the first rail, a restriction member on the second rail, and a support base movably connected to an open end of the first rail. The second rail is pulled from the open end. The first rail includes an installation hole and a stop at the open end. The support base includes a buffering member contacting the stop of the first rail. When the second rail is completely pulled from the first rail, the restriction member contacts the support base which is moved and compresses the buffering member to reduce the impact force and the noise.