Stackable Height-Adjustable Desk With Detachable Leg Sleeves

Solution Overview

Problem

Existing school desks with height adjustment means are cumbersome to disassemble and stack, visually unappealing due to visible adjustment components, and costly to produce.

Innovation Solution

A desk design featuring removable legs and sleeves with complementary ridge and recess configurations for easy stacking, integrated height adjustment through concealed fasteners, and a tray-shaped book box for efficient storage and shipping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If height adjustment means are added to school desks, then versatility is improved, but device complexity increases

Engineering Contradiction:

Improveheight adjustabilityVSAvoidadjustment mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The leg is divided into multiple telescopic segments that can extend and retract relative to each other. These segmented leg portions are received within corresponding sleeves, allowing independent movement and height adjustment without complex mechanical linkages. The segmentation enables continuous height variation while maintaining structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The telescopic leg portions are nested within each other and within the sleeves, creating a compact structure when retracted. The leg segments fit inside one another like nested dolls, and the entire leg assembly fits within the desk frame when not in use, providing height adjustment functionality without adding external complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If height adjustment means are added to school desks, then versatility is improved, but manufacturing cost increases

Engineering Contradiction:

Improveheight adjustabilityVSAvoidproduction cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The leg is divided into multiple telescopic segments that can extend and retract relative to each other. These segmented leg portions are received within corresponding sleeves, allowing independent movement and height adjustment without complex mechanical linkages. The segmentation enables continuous height variation while maintaining structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The telescopic leg portions are nested within each other and within the sleeves, creating a compact structure when retracted. The leg segments fit inside one another like nested dolls, and the entire leg assembly fits within the desk frame when not in use, providing height adjustment functionality without adding external complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Volume of moving object

If desks are designed for stacking with legs detached, then storage efficiency is improved, but assembly complexity increases

Engineering Contradiction:

Improvestacking space efficiencyVSAvoidassembly process complexity

Core Design Contradiction:

Volume of moving objectVSDevice complexity

Solution Approach 1:

The leg is divided into multiple telescopic segments that can extend and retract relative to each other. These segmented leg portions are received within corresponding sleeves, allowing independent movement and height adjustment without complex mechanical linkages. The segmentation enables continuous height variation while maintaining structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The telescopic leg portions are nested within each other and within the sleeves, creating a compact structure when retracted. The leg segments fit inside one another like nested dolls, and the entire leg assembly fits within the desk frame when not in use, providing height adjustment functionality without adding external complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS8118375B2Height adjustable desk configured for stacking with legs detached

Publication Date: 2012.02.21 ALPHA-VICO INC

AI summary

A desk comprising: a writing board, the writing board defining a top surface and a substantially opposed bottom surface; at least three sleeves, each of the at least three sleeves extending substantially away from the bottom surface, each of the at least three sleeves defining a respective free end substantially opposed to the bottom surface; at least three legs, each of the at least three legs being removably insertable into and securable to a respective one of the at least three sleeves; a first one of the at least three sleeves defining a ridge extending substantially longitudinally therefrom at the free end of the first one of the at least three sleeves and a second one of the at least three sleeves defining a recess extending substantially longitudinally thereinto at the free end of the second one of the at least three sleeves, the recess being configured and sized for substantially snugly receiving the ridge. Two of the desks are stackable on top of each other with legs detached therefrom by inserting the ridge of a first one of the two desks into the recess of a second one of the two desks and inserting the ridge of the second one of the two desks into the recess of the first one of the two desks.