Slide Assembly Adjustment Lever for Compact Drawer Fine-Tuning

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Solution Overview

Problem

Existing slide assembly adjustment mechanisms require significant space and laborious operating forces, making them inefficient for fine-tuning the position of drawers or decks.

Innovation Solution

A compact slide assembly with an outer rail, inner rail, adjusting lever, and guide block, where the guide block's protruding portion moves within a slot of the inner rail, allowing easy adjustment using a hand tool, leveraging the pivoting mechanism and leverage for precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a worm and worm gear mechanism is used for adjustment, then the adjustment function is achieved, but the assembly space required increases

Engineering Contradiction:
Improveadjustment functionVSAvoidassembly space
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent extracts the essential adjustment function from the complex worm and worm gear mechanism, retaining only the necessary components (adjusting lever, guide block, and slot interaction) to achieve position fine-tuning, thereby significantly reducing the assembly space required

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using a gear mechanism to convert rotational motion to linear adjustment, the patent inverts the approach by using a lever that directly translates rotational input into linear displacement through the guide block's interaction with the slot, achieving adjustment with minimal space

Inventive Principle:
Principle #13The other way round (Inversion)

2Manufacturing precision

If a traditional adjustment mechanism is used, then positioning is achieved, but the operating force required increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidoperating force
Core Design Contradiction:
Manufacturing precisionVSForce

Solution Approach 1:

The patent employs a dynamic lever mechanism that pivots about a fixed point, allowing the user to apply small forces that are amplified through the lever arm to achieve precise positioning, rather than requiring large forces as in traditional mechanisms

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The guide block acts as an intermediary between the adjusting lever and the drawer, translating the lever's rotational movement into precise linear positioning while requiring minimal operating force, thus mediating between user input and positioning output

Inventive Principle:
Principle #24Intermediary (Mediator)

3Area of stationary object

If a compact adjustment mechanism is used, then space is reduced, but the ease of operation may be compromised

Engineering Contradiction:
Improveassembly spaceVSAvoidadjustment ease
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The adjusting lever serves multiple functions: it provides the adjustment input, acts as a force amplification mechanism, and directly controls the guide block's position, consolidating multiple functions into a single compact component that maintains ease of operation

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables easy, labor-saving adjustments with a compact design, facilitating precise positioning of drawers or decks without the need for excessive space or force, ensuring accurate and efficient alignment.

Implementation Method 1

The guide block is pivoted to the second hole of the adjusting lever. A protruding portion is disposed at the bottom of the guide block and corresponds to the second slot of the inner rail. Accordingly, the protruding portion is moved against a portion of the second slot by turning the guide block and the adjusting lever

Methodology Applied
Scientific EffectPivoting: Hinge

Implementation Method 2

the first hole of the adjusting lever slides in relation to the first slot

Methodology Applied
Scientific EffectSliding: Friction

Implementation Method 3

the protruding portion of the guide block is eccentrically disposed; a head portion is disposed on the top of the guide block

Methodology Applied
Scientific EffectEccentric mechanism: Eccentric

Data Source

PatentUS8162420B2Slide assembly having an adjustment mechanism
Publication Date: 2012.04.24 KING SLIDE WORKS CO LTD
  • US8162420B2 patent drawing
  • US8162420B2 patent drawing
  • US8162420B2 patent drawing

AI summary

A slide assembly having an adjustment mechanism includes an inner rail, an adjusting lever, and a guide block. The inner rail includes a first slot, a pivoting portion, and a second slot thereon. The adjusting lever includes a first hole, a middle section pivoted to the inner rail, and a second hole. The first hole corresponds in position to the first slot, and the second hole corresponds in position to the second slot. The guide block is pivoted to the second hole of the adjusting lever. A protruding portion is eccentrically disposed on the guide block. The protruding portion is moved to lean against a portion of the second slot by turning the guide block. The adjusting lever deflects and the first hole slides in relation to the first slot. A fastening member penetrates through the first hole to connect a drawer or similar object so that the drawer can be tuned fine for a higher or lower position.