Remote-Controlled Jobsite Material Stand With Ball-Screw Positioning
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Solution Overview
Problem
Existing sawhorses and support structures are unsafe and difficult to adjust under load, leading to accidents and improper cuts due to load shifting, especially on uneven surfaces, and lack the ability to make precise adjustments without sacrificing ease-of-use and portability.
Innovation Solution
A remote-controlled adjustable support system with telescopic vertical and horizontal movements, equipped with motors and ball screws, allowing for safe and precise adjustments of the top plate's position and angle without manual intervention, using wireless control to prevent load shifting and enhance safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sawhorses are used to support materials for cutting, then portability and ease-of-use are maintained, but safety is compromised due to load shifting and inability to adjust under load
Solution Approach 1:
The patent replaces manual mechanical adjustment mechanisms with an automated motorized system. Motors drive ball screws to adjust the telescopic arms and leg positions, eliminating the need for manual intervention during load-bearing operations. This substitution maintains safety through precise automated control while preserving ease-of-use via remote control operation.
Solution Approach 2:
The system performs self-adjustment through automated motors that respond to remote control signals. The motors automatically position the telescopic arms and legs to maintain proper support geometry, allowing the system to service itself without manual intervention and thereby improving safety while maintaining ease of operation.
2Adaptability or versatility
If manual adjustment of sawhorse legs is performed under load, then adaptability to uneven surfaces is achieved, but safety is reduced due to load shifting and instability
Solution Approach 1:
The patent implements dynamic adjustment capability through motorized telescopic arms and legs that can be adjusted while bearing load. The system transitions from static conventional sawhorses to a dynamic system that actively adapts to uneven surfaces through remote-controlled motorized positioning, achieving both adaptability and safety simultaneously.
Solution Approach 2:
Manual mechanical adjustment is replaced with motorized actuation. The motors provide controlled, stable adjustment movements that prevent load shifting while adapting to uneven surfaces, thereby achieving adaptability without compromising safety.
3Manufacturing precision
If conventional adjustable sawhorses are used, then height adjustment capability is provided, but manufacturing precision is insufficient due to lack of micro adjustment capability
Solution Approach 1:
The patent replaces coarse manual adjustment mechanisms with motorized ball screw drives. The ball screws provide fine, precise control over the telescopic arm and leg positions, enabling micro-adjustments for precise material alignment and cutting height control, thereby achieving high manufacturing precision without proportionally increasing device complexity.
Solution Approach 2:
While not explicitly using pneumatic or hydraulic systems, the patent employs a similar principle through motorized ball screw mechanisms that provide smooth, controlled, precise movement. The ball screws convert rotational motor motion into precise linear displacement, achieving fine adjustment capability comparable to pneumatic/hydraulic systems.
4Adaptability or versatility
If miter saw stands with extended support arms are used, then adaptability to long materials is improved, but stability deteriorates due to increased deflection under load
Solution Approach 1:
The system uses dynamic motorized adjustment of telescopic arms to optimize support geometry for different material lengths. The motors can actively compensate for deflection by adjusting arm positions and angles in real-time, maintaining stability while accommodating long materials, thereby achieving both adaptability and stability.
Solution Approach 2:
The motors pre-position the telescopic arms and legs to optimal configurations before material placement. This preliminary adjustment ensures proper support geometry is established in advance, preventing excessive deflection and maintaining stability for long materials while preserving adaptability.
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
Enables safe and accurate cutting by allowing adjustments to be made remotely, reducing the risk of accidents and improving cut precision while maintaining portability and ease-of-use.
Implementation Method 1
A remote-controlled adjustable support system with telescopic vertical and horizontal movements, equipped with motors and ball screws
Data Source
AI summary
One aspect of the disclosure is for a remote-controlled apparatus (110) used to support, lift, lower, and move side to side lumber and other materials in a variety of applications including but not limited to cutting, assembling, or installing. The apparatus (110) can include four folding adjustable legs, a telescopic vertical main shaft, and a horizontal top rail (see FIG. 2A, for example). Inside the main shaft is an electronic actuator to provide vertical linear movement. The top rail is equipped with a motor and ball screw to provide horizontal linear movement.