Slide Rail Assembly with Buffer Member for Impact Force Absorption

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Solution Overview

Problem

Existing slide rail systems face challenges in effectively reducing impact force on engaging members when fully extended, as they often rely solely on deformable components that can be damaged by the impact.

Innovation Solution

A slide rail assembly design incorporating a buffer member mounted on a first rail within a front bracket's opening, which absorbs impact force by hitting the bracket's wall when the engaging member is pushed against a stop, thereby reducing stress on the engaging member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a deformable engaging member is used to absorb impact force, then the impact force and sound are reduced, but the engaging member is subject to damage

Engineering Contradiction:
Improveimpact forceVSAvoidengaging member durability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The impact absorption function is segmented from the engaging member and assigned to a separate buffer member. The buffer member is specifically designed to absorb impact force by deforming or compressing, while the engaging member maintains its structural integrity for reliable engagement and disengagement operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A buffer member is introduced as an intermediary component between the engaging member and the stop. When the engaging member contacts the stop, the buffer member absorbs the impact force, protecting the engaging member from damage while still allowing the stopping function to operate effectively.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the engaging member is the only component designed to absorb impact force, then the stopping function is achieved, but the engaging member is subject to damage

Engineering Contradiction:
Improvestopping functionVSAvoidengaging member strength
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The functions of stopping and impact absorption are segmented into separate components. The stop provides the stopping function, while the buffer member provides impact absorption, allowing the engaging member to maintain its strength for reliable operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The buffer member is positioned in advance between the engaging member and the stop to provide cushioning before impact occurs. This beforehand cushioning protects the engaging member from impact damage while ensuring the stopping function is achieved.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If a buffer member is added to absorb impact force, then the engaging member is protected from damage, but the device complexity increases

Engineering Contradiction:
Improveengaging member protectionVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The buffer member is nested within the structural space between the engaging member and the stop, utilizing existing spaces in the assembly. This nesting approach adds the buffer member without significantly increasing overall device complexity or requiring additional mounting structures.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 buffer member effectively absorbs impact forces, preventing damage to the engaging member and ensuring smooth operation of the slide rail system by distributing the force across the assembly.

Implementation Method 1

the buffer member absorbs the impact force by hitting a wall of the opening of the front bracket

Methodology Applied
Scientific EffectImpact force absorption: Damping

Data Source

PatentUS9675175B1Slide rail assembly
Publication Date: 2017.06.13 KING SLIDE WORKS CO LTD
  • US9675175B1 patent drawing
  • US9675175B1 patent drawing
  • US9675175B1 patent drawing

AI summary

A slide rail assembly includes a front bracket with an opening, a first rail movably connected to the front bracket and having a stop, a buffer member fixed on the first rail and located in the opening, a second rail displaceable with respect to the first rail, and an engaging member provided on the second rail and corresponding to the stop. When the second rail is displaced from a first to a second extended position with respect to the first rail, the engaging member is pushed against the stop, generating an impact force and displacing the first rail from a first to a second position with respect to the front bracket. The buffer member absorbs the impact force by hitting a wall of the opening.