Universal Screw-Driving Support for Plate-Lifting Tools
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Solution Overview
Problem
Existing plate-lifts are manual and slow, and when equipped with a screw-driving machine, they can cause wrist twisting due to the need to hold the machine firmly, making them bulky and costly, and not easily adaptable to different screw-driving machines.
Innovation Solution
A universal screw-driving machine support that allows the use of various commercially available screw-driving machines, featuring a telescopic mast with a geared mechanism, a reversible fixing system, and adjustable stops to secure the machine, preventing rotation and reducing user strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw-driving machine is fixed to the mast to prevent wrist twisting, then user safety is improved, but the tool becomes bulky and heavy
Solution Approach 1:
The support structure is divided into separate modular components: a fixing member that attaches to the mast, an adjustment member with sliding bracket, and stopping members. This segmentation allows each component to be optimized independently and facilitates easy assembly and disassembly, reducing the need for excessive structural reinforcement that would increase weight.
Solution Approach 2:
The support structure incorporates adjustable and movable elements, including the sliding bracket that can move along the mast, adjustable stopping members, and configurable fixing mechanisms. This dynamic design allows the structure to adapt to different screw-driving machine configurations without requiring a heavy, rigid framework, thereby reducing overall weight while maintaining safety.
2Reliability
If a screw-driving machine is fixed to the mast, then wrist twisting is prevented, but the design costs increase due to specialized motor requirements
Solution Approach 1:
The support structure is designed as a universal system that can accommodate various models and sizes of screw-driving machines through adjustable stopping members and configurable fixing mechanisms. This universality eliminates the need for specialized, machine-specific designs, thereby reducing development and manufacturing costs while maintaining wrist twisting prevention.
Solution Approach 2:
The support structure acts as an intermediary between the mast and the screw-driving machine, providing a standardized interface that simplifies integration. Rather than designing custom mounting solutions for each machine model, the universal support structure mediates the connection, reducing design complexity and manufacturing costs.
3Power
If the screw-driving machine is held firmly in position, then torque transmission is improved, but user comfort deteriorates due to wrist strain
Solution Approach 1:
The support structure extracts the function of torque transmission from the user's hand and wrist by providing a rigid mounting system that directly couples the screw-driving machine to the mast. This extraction eliminates the need for the user to grip and stabilize the machine, thereby maintaining full torque transmission while significantly improving user comfort and reducing wrist strain.
4Adaptability or versatility
If a universal support structure is designed to accommodate different screw-driving machines, then adaptability is improved, but device complexity increases
Solution Approach 1:
The support structure achieves universality through parameter adjustments rather than structural complexity. The sliding bracket can be positioned at different heights, the stopping members can be adjusted to accommodate different machine dimensions, and the fixing mechanisms can be configured for various mounting scenarios. These parameter changes enable adaptability to different screw-driving machines without requiring a complex, multi-configuration 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
Enables safe and efficient actuation of the lifting mechanism with reduced user fatigue and adaptability to different screw-driving machines, enhancing handling safety and reducing tool bulkiness and costs.
Implementation Method 1
a geared mechanism for lifting the first sliding segment relative to the fixed segment, the lifting mechanism comprising a driving shaft with a rotation axis
Implementation Method 2
a rack of specific width, furnished with teeth and fixed along the first telescopic segment; a pinion in direct engagement with the rack
Data Source
AI summary
A screw-driving machine support for a plate-lifting tool comprises a telescopic mast comprising a fixed segment and a first telescopic segment mounted so as to slide inside the fixed segment and a lifting mechanism using a gear or winch for the first sliding segment relative to the fixed segment. The lifting mechanism comprises a driving shaft with a rotation axis and a reversible fastening means with a shaft for screwing and unscrewing a screw-driving machine, which comprises, in the position of use a member for fastening to the mast, a lateral stop which is vertical, parallel and laterally offset to the axis of rotation of the driving shaft by a given center distance and is designed to lock a screw-driving machine handle laterally in the position of use and a member for adjusting the position of the vertical stop (420) relative to the axis of rotation of the driving shaft.