Portable Work Bench with Spring-Assisted Leg Mechanism
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Solution Overview
Problem
Existing portable work benches lack stability and ease of setup, requiring users to lift power tools for operation or to set up the bench, and are difficult to move around construction sites.
Innovation Solution
A portable work bench with pivotally connected legs and a spring mechanism that allows the bench to be easily elevated and locked into position, featuring a structural body that supports power tools and includes wheels for mobility, enabling ergonomic height adjustment and compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a portable work bench is designed to be lightweight and foldable for easy transport, then mobility is improved, but stability and strength are worsened
Solution Approach 1:
The work bench is divided into separate components including a foldable bench top, adjustable legs with casters, and a tool holder assembly. This segmentation allows each component to be optimized independently - the bench top can be lightweight aluminum while the leg structure provides stability through telescopic design and locking mechanisms.
Solution Approach 2:
The work bench incorporates dynamic elements such as adjustable leg heights, foldable bench top, and movable tool holder. The legs can be extended or retracted to adjust stability, and the bench top can be folded for transport. This dynamic design allows the structure to adapt between stable working configuration and compact transport configuration.
2Ease of operation
If the work bench height is adjusted to ergonomic levels, then comfort is improved, but device complexity is worsened
Solution Approach 1:
The leg assemblies are designed as telescopic structures with multiple lockable positions at different heights. Each leg can be independently adjusted to achieve ergonomic working height, and the adjustment mechanism uses simple pin-and-hole or cam-based locking that requires minimal complexity while providing multiple height options for comfort.
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 and ergonomic work surface that can be easily transported and set up, allowing for efficient operation of power tools at various heights while maintaining a compact form factor for easy movement and storage.
Implementation Method 1
a spring connecting the first and second legs so that the spring provides at least a portion of the force necessary to move the first and second legs from the first position to the second position
Data Source
AI summary
A work bench may include a body for supporting a power tool, a first leg connected to a first end of the body, a second leg connected to a second end of the body, the first and second legs being pivotally connected, the first and second legs being movable between a first position where the body is in a lowered position and a second position where the body is in an elevated position, and a spring connecting the first and second legs. The spring provides at least a portion of the force necessary to move the first and second legs from the first position to the second position.