Folding Table Stand with Sliding-Rotating Axle for Compact Packaging

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Solution Overview

Problem

Conventional electric height adjustable tables are bulky and inconvenient for users to assemble after being disassembled for packaging and shipment, with existing foldable designs still having issues with overlap and thickness that hinder efficient packaging and shipment.

Innovation Solution

An electric height adjustable folding table with a crossbeam featuring a positioning elongated slot and a positioning axle that allows for rotative and sliding movements, reducing the overlap between folded uprights and facilitating assembly and packaging by allowing the uprights to be folded to the utmost extent, thereby minimizing the overall thickness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the electric height adjustable uprights are articulated with the crossbeam to enable folding, then the ease of packaging and shipment is improved, but the overall folded length becomes greater than the crossbeam length, causing overlap and increased thickness

Engineering Contradiction:

Improveease of packaging and shipmentVSAvoidoverall thickness of folded uprights

Core Design Contradiction:

Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent introduces a dynamic positioning mechanism where the positioning axle can slide along the positioning elongated slot and rotate within it. This dynamic adjustment allows the folded uprights to be repositioned from an initial folded state to a compact final state, minimizing the overall thickness and resolving the volume contradiction.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The positioning axle changes its positional parameters by sliding along the elongated slot and rotating within it. This parameter change transforms the spatial arrangement of the folded uprights, reducing their overall thickness and enabling more efficient packaging while maintaining the folding capability.

Inventive Principle:

Principle #35Parameter changes

2Ease of manufacture

If the uprights are disassembled from the crossbeam for packaging, then the ease of packaging and shipment is improved, but the difficulty of user assembly increases

Engineering Contradiction:

Improveease of packaging and shipmentVSAvoidease of user assembly

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The patent implements preliminary action by pre-assembling the positioning axle into the positioning elongated slot before packaging. This preliminary assembly maintains the connection between uprights and crossbeam, allowing users to simply unfold and lock the structure without complex assembly steps, thus resolving the contradiction between packaging ease and assembly ease.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The positioning axle is nested within the positioning elongated slot, creating a compact pre-assembled unit. This nesting maintains the functional connection between components while enabling compact packaging, and the simple unfold-and-lock mechanism preserves ease of user assembly.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Stability of the object's composition

If the positioning axle is fixed at the proximal end of the positioning elongated slot, then the stability of the upright position is improved, but the ability to achieve compact folded reception deteriorates

Engineering Contradiction:

Improvestability of upright positionVSAvoidfolded thickness

Core Design Contradiction:

Stability of the object's compositionVSVolume of moving object

Solution Approach 1:

The positioning axle transitions from a fixed position to a dynamic system that can slide along the elongated slot and rotate within it. This dynamic capability allows the axle to move from the proximal end (stable position) to the distal end (compact folded position), resolving the contradiction between stability and compactness.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The positioning axle changes its positional parameters by sliding to the distal end of the elongated slot and rotating within the slot. This parameter change enables compact folded reception while maintaining stability through the constrained movement path provided by the elongated slot geometry.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11490726B1Folding table stand, folding table, and method for assembling the same

Publication Date: 2022.11.08 ZHEJIANG JIECHANG LINEAR MOTION TECH

AI summary

Disclosed is an electric height adjustable folding table, including: a table stand, the table stand including a crossbeam, two ends of the crossbeam being respectively mounted with an electric height adjustable upright; wherein a positioning elongated slot is provided on the crossbeam, and the electric height adjustable upright includes a positioning axle via which the electric height adjustable upright performs rotative and sliding movements in the positioning elongated slot; and when the electric height adjustable upright is at a first position, the positioning axle is at a proximal end of the positioning elongated slot and maintains a spread-out angle with respect to the crossbeam; and when the electric height adjustable upright is at a second position, the positioning axle slides to a distal end of the positioning elongated slot, and meanwhile the positioning axle rotates in the positioning elongated slot towards the center of the crossbeam, thereby implementing folded reception.