Electrically-lifted computer desk and office desk thereof
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current electrically-lifted desks suffer from instability, limited load-bearing capacity, and noise issues due to their structural design, and are often limited to specific uses without the ability to function independently.
Innovation Solution
The design incorporates a motor-driven mechanism with optical sensors for safe and stable operation, featuring a frame-shaped driving mechanism, lift-assist springs, and a safety-enhancing system that uses light curtains to prevent accidents, allowing the desk to be used as a standalone or integrated unit with enhanced bearing power and reduced noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a motor-driven mechanism is used to lift the desk, then the desk can be adjusted in height, but the structure becomes complex and unstable
Solution Approach 1:
The lifting mechanism is divided into multiple independent support members (first support member and second support member) that can be independently controlled. Each support member has its own motor-driven screw rod and nut assembly, allowing the desk surface to be adjusted in height independently on each side, thereby reducing the complexity of a single complex mechanism while maintaining height adjustment capability.
Solution Approach 2:
The support members are designed to be movable between extended and retracted positions, allowing dynamic adjustment of the desk height. The screw rods can rotate to extend or retract the support members, providing dynamic height control while maintaining structural stability through the rigid connection between the motor assembly and desk surface.
2Ease of operation
If multiple pivot joint points are used in the lifting mechanism, then the desk can move freely, but the structure becomes unstable and generates noise
Solution Approach 1:
The patent removes the problematic pivot joint points from the support members and replaces them with a direct motor-driven screw rod mechanism. The motor assembly with screw rod and nut provides controlled movement without requiring multiple pivot joints, thereby eliminating the source of noise and instability while maintaining the ability to move the desk surface freely between extended and retracted positions.
3Ease of manufacture
If the desk structure is simplified to reduce complexity, then manufacturing becomes easier, but load-bearing capacity is limited
Solution Approach 1:
The patent employs spring assemblies that act as counterweights to offset the weight of the desk surface and any objects placed on it. The springs are connected to the support members and provide upward force to balance the downward gravitational force, thereby enhancing the load-bearing capacity without requiring a complex reinforced structure. This allows the desk to support heavy loads while maintaining a relatively simple and easy-to-manufacture design.
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 solution provides a stable, noise-reduced, and multi-purpose electrically-lifted desk with improved load-bearing capacity and safety features, enabling flexible use as a computer or office desk while preventing accidents through the use of optical sensors.
Implementation Method 1
transmitting an optical signal between one or more first optical sensors aligned along an edge of the face plate, and one or more second optical sensors located on the bottom plate
Implementation Method 2
a lift-assist spring coupled to the one or more support members, wherein the lift-assist spring is compressed when the face plate is in the lowered position, and the lift-assist spring is extended when the face plate is in the raised position
Data Source
AI summary
A desk having a bottom plate, a face plate movably coupled to the bottom plate by one or more support members, a motor configured to selectively move the face plate upward and downward with respect to the bottom plate, and a control mechanism. The control mechanism can have a first sensor device coupled to an upper surface of the bottom plate, the first sensor device having one or more first optical sensors, and a second sensor device aligned parallel to the first sensor device and coupled to a lower surface of the face plate, the second sensor device having one or more second optical sensors in communication with the one or more first optical sensors. The control mechanism can be configured to stop the motor from moving the face plate in response to an object between the first sensor device and the second sensor device.