Up-down Worktable With Elastic Lift Support and Angle Restriction

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Solution Overview

Problem

Conventional up-down worktables have complex structures that can lead to malfunctions and difficulties in stabilizing high loads, requiring manual adjustment of height using pumps or electric motors, which decreases work efficiency due to increased time consumption for frequent height changes.

Innovation Solution

An up-down worktable with a vertically slidable lifting member, an elastic lift support portion, and an angle restriction mechanism that automatically adjusts the work support's height based on the load, allowing the work support to move downward or upward during loading or unloading, maintaining a uniform working height without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a link structure with lateral link bars and perpendicular link bars is used to move the mount frame up or down, then the height can be adjusted, but the structure becomes complicated leading to malfunctions and errors

Engineering Contradiction:
Improveheight adjustment capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts and removes the complex link structure (lateral link bars and perpendicular link bars) from the system, replacing it with a simplified lifting device that directly connects the base frame to the mount frame. This extraction eliminates the source of malfunctions and errors while preserving the essential height adjustment function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using a complex mechanical linkage system to achieve height adjustment, the patent inverts the approach by using a direct lifting mechanism with elastic members that provide both lifting force and structural support, simplifying the overall system architecture.

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

2Adaptability or versatility

If a link structure is used to support the mount frame, then height adjustment is possible, but it becomes difficult to stably support high loads and precisely adjust height

Engineering Contradiction:
Improveheight adjustment capabilityVSAvoidload stability and height precision
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The elastic members are pre-installed between the base frame and the mount frame to provide preliminary support and lifting force. This preliminary action ensures that the mount frame is always supported with appropriate force, enabling stable high load support and precise height adjustment without requiring complex control mechanisms.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes the elastic properties of the elastic members to dynamically adjust the lifting force based on the load conditions. By changing the elastic parameter (force) in response to load variations, the system achieves stable support for high loads while maintaining precise height adjustment capability.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If manual adjustment using a pump or electric motor is used to change the lift height, then height can be adjusted, but the time consumed increases and work efficiency decreases

Engineering Contradiction:
Improveheight adjustment capabilityVSAvoidwork efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The elastic members automatically provide the necessary lifting force and height adjustment based on the load placed on the worktable. The system serves itself by utilizing the elastic deformation and recovery of the members to adjust the mount frame height, eliminating the need for manual operation of pumps or electric motors and thereby improving work efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The elastic members naturally undergo periodic expansion and contraction cycles in response to loading and unloading operations. This periodic action automatically adjusts the height of the mount frame to match the operational requirements, eliminating the need for continuous manual intervention and increasing productivity.

Inventive Principle:
Principle #19Periodic action

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 automatic height adjustment improves work efficiency by allowing workers to maintain a consistent working height, reducing the risk of injury and increasing productivity by eliminating the need for frequent manual adjustments.

Implementation Method 1

a lift support portion installed on the base frame to move the lifting member upward while elastically supporting the lifting member

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS11311999B2Up-down worktable
Publication Date: 2022.04.26 OKO CO LTD
  • US11311999B2 patent drawing
  • US11311999B2 patent drawing
  • US11311999B2 patent drawing

AI summary

Disclosed is an up-down worktable including a base frame, a lifting member installed on the base frame to be vertically slidable, a work support having one side surface provided with a mounting surface to allow an object to be transferred to be mounted thereon and having an end pivotably installed on the lifting member, a lift support portion installed on the base frame to move the lifting member upward while elastically supporting the lifting member to allow the lifting member to move downward according to a load of the object mounted on the mounting surface, and an angle restriction portion configured to restrict a pivoting angle of the work support so that the mounting surface is set in a direction of intersecting with a sliding direction of the lifting member to mount the object on the mounting surface or the work support stands straight with respect to the base frame.