Electric Shelf with Column-Mounted Linear Drive for Vertical Mobility

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Solution Overview

Problem

Existing shelves, particularly ceiling types, face instability and difficulty in installation, leading to insecurity and increased costs, while also occupying valuable space due to fixed positions and hanging mechanisms.

Innovation Solution

An electric shelf design featuring a column-mounted slidable component with a linear driving device, allowing the shelf board to move vertically along a fixed column, reducing friction and enhancing stability, and simplifying installation with a motorized system that saves space and labor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a ceiling type shelf is mounted at a higher height to save space, then the occupied home space is reduced, but the difficulty in accessing placed items increases

Engineering Contradiction:
Improveoccupied home spaceVSAvoidaccessibility to items
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The shelf board component is designed to be movable rather than fixed, allowing it to be lowered to an accessible height and then raised back to the ceiling-mounted position. The linear driving device enables the shelf board to slide along the column between a raised position (close to the ceiling) and a lowered position (within easy reach), dynamically adjusting the shelf height based on user needs.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a pulley and motor are employed to achieve rising and declining of a ceiling type shelf, then the shelf can be raised and lowered, but the structure complexity increases

Engineering Contradiction:
Improverising and declining capabilityVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention extracts and eliminates the complex pulley system from the design. Instead of using ropes and pulleys fixed at multiple positions, the shelf board is directly connected to a linear driving device that moves it along a column, simplifying the overall structure while maintaining the rising and declining functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The traditional mechanical pulley system is replaced with a linear driving device that uses a motor to drive a screw rod, which in turn moves the shelf board component along the column through a nut mechanism. This substitution simplifies the mechanical structure by eliminating multiple pulleys and ropes.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If ropes are used to fix three or four positions on the shelf for hanging, then the shelf can be raised and lowered, but instability during rising or declining causes the shelf to waggle and results in insecurity

Engineering Contradiction:
Improverising and lowering functionVSAvoidstability during movement
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The rope-based hanging mechanism is replaced with a linear driving device that provides controlled, stable movement. The screw rod and nut mechanism ensures smooth, wiggle-free motion of the shelf board along the column, eliminating the instability and insecurity associated with rope-based systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Adaptability or versatility

If a ceiling type shelf is installed with multiple fixing positions, then the shelf can be adjusted to different heights, but the installation difficulty increases and costs increase

Engineering Contradiction:
Improveheight adjustment capabilityVSAvoidinstallation difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The shelf system uses a movable shelf board component that can be positioned at different heights along the column through the linear driving device, eliminating the need for multiple fixed mounting positions. This dynamic adjustment capability simplifies installation while maintaining height adaptability.

Inventive Principle:
Principle #15Dynamics

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 electric shelf provides a stable, space-efficient, and user-friendly solution by allowing the shelf board to move vertically, reducing friction and installation complexity, while maintaining safety and reducing the need for additional space.

Implementation Method 1

reducing friction and enhancing stability

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS10729238B2Electric shelf
Publication Date: 2020.08.04 LOCTEK INC
  • US10729238B2 patent drawing
  • US10729238B2 patent drawing
  • US10729238B2 patent drawing

AI summary

An electric shelf includes at least one column to be installed on a wall, a slidable component arranged on the column to slide along the column vertically, at least one layer of shelf board component connected to the slidable component to move simultaneously with the slidable component, and a linear driving device connected to the slidable component and the column to actuate the slidable component to move relative to the column. Advantages of the present disclosure compared to prior arts include a simpler structure and less space occupied by the shelf board component.