Removable Workbench Legs with Adjustable Clamping for Varied Diameters
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Solution Overview
Problem
Existing workbenches with removable legs lack efficient mechanisms to accommodate varying leg diameters and provide stable, adjustable attachment solutions for both use and storage positions.
Innovation Solution
A workbench design featuring a clamping mechanism with adjustable clamping surfaces and a spring-loaded adjustment screw to accommodate legs of different diameters, combined with a fastening system using flexible straps and corner brackets for secure attachment in both use and storage positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed clamping mechanism is used to attach legs to the workbench frame, then the structure is simple, but it cannot accommodate legs with varying diameters
Solution Approach 1:
The clamping block is made movable along the bearing shaft instead of being fixed, allowing dynamic adjustment of the clamping position. This enables the clamping mechanism to adapt to different leg diameters while maintaining a relatively simple overall structure.
Solution Approach 2:
The position of the clamping block is adjusted by changing the parameter of its location along the bearing shaft. The adjustment element (screw mechanism) enables continuous variation of the clamping block position, allowing accommodation of legs with different diameters.
2Manufacturing precision
If the movable clamping surface is parallel to the adjustment direction, then the structure is simple, but it cannot compensate for manufacturing tolerances in leg diameters
Solution Approach 1:
The movable clamping surface is designed at an angle of inclination (10°-20°) relative to the adjustment direction, creating an asymmetric geometry in the clamping block. This angular orientation enables the mechanism to compensate for manufacturing tolerances in leg diameters while the adjustment element maintains positioning capability.
3Adaptability or versatility
If the clamping range is fixed, then the structure is simple, but it cannot accommodate both small and large diameter legs effectively
Solution Approach 1:
The clamping range is made variable through the movable clamping block that can be repositioned along the bearing shaft. This dynamic adjustment capability allows the same mechanism to effectively clamp both small and large diameter legs by adapting the clamping position to match the leg size.
4Adaptability or versatility
If the legs are permanently attached to the workbench, then the structure is stable, but the legs cannot be removed for storage or relocation
Solution Approach 1:
The attachment system transitions from a fixed state to a dynamic, reversible state. The clamping mechanism with adjustable clamping block provides stable attachment when engaged, while allowing easy removal when the clamping force is released, enabling both permanent-like stability and removable flexibility.
Solution Approach 2:
The leg attachment is segmented into separate components (leg, mounting base, clamping block, bearing shaft) that can be independently assembled and disassembled. This segmentation enables the legs to be permanently attached during use yet easily removed for storage by simply releasing the clamping mechanism.
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 stable and adjustable attachment of legs to the workbench, accommodating varying diameters and facilitating easy transition between use and storage positions, enhancing usability and stability.
Implementation Method 1
a spring element can be provided which acts on the clamping block in a direction away from the bottom of the storage shaft
Implementation Method 2
The adjustment element is an adjustment screw extending in the adjustment direction. The adjustment screw can be screwed into an internal thread assigned to the base
Implementation Method 3
Two opposing inner walls of an insertion opening of the actuating base are formed by clamping surfaces
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a workbench with removable legs, wherein the legs are inserted into insertion openings (7) of a mounting base (6) attached to the underside of a table frame (1) and can be secured in a storage position on the underside of the table frame (1).