Open Reel Screwdriver Tips Holder with Winding Band Mechanism
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Solution Overview
Problem
Conventional screwdriver tip holders are prone to dropping the heavy metal tips due to tilting during transportation, and existing solutions either make removal difficult or occupy excessive space, making them cumbersome to carry.
Innovation Solution
An open reel holder design featuring a spiral spring and winding band mechanism that allows easy access and loading/unloading of screwdriver tips through a pushbutton-activated latch system, reducing the holder's size and improving portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screwdriver tips are tightly coupled with cavities to prevent dropping, then safety is improved, but ease of operation deteriorates as removal becomes more difficult
Solution Approach 1:
The patent employs a dynamic retention mechanism where the winding band can be selectively tightened or loosened. The band is normally tensioned to securely hold the screwdriver tips, but can be quickly released by pulling the end of the band through the opening, allowing easy removal when needed. This dynamic adjustment resolves the contradiction between secure retention and easy removal.
Solution Approach 2:
The patent extracts the retention function from the cavity structure and transfers it to a separate winding band mechanism. The winding band is wound around the screwdriver tips and can be independently controlled, allowing the tips to be securely held without being permanently fixed to the cavity structure. This separation enables easy removal by simply loosening the band.
2Quantity of substance
If a rectangular plastic chest is used to hold screwdriver tips, then capacity is improved, but portability deteriorates due to larger space occupation and difficulty in carrying
Solution Approach 1:
The patent transitions from a rectangular chest design to a circular holder design. The circular shape reduces the peripheral area and makes the holder more compact and ergonomic for carrying. The winding band mechanism is arranged concentrically around the circular opening, allowing efficient use of space while maintaining portability. The circular geometry naturally reduces the overall footprint compared to a rectangular chest.
Solution Approach 2:
The patent nests the screwdriver tips within the winding band, which itself is wound around the central axis of the holder. The winding band acts as a container that can be compacted into a small cylindrical form when not in use, significantly reducing the space required for storage and transport. This nested arrangement allows the holder to maintain adequate capacity while being highly portable.
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 rapid and convenient access and storage of screwdriver tips while minimizing space occupation, enhancing safety and usability by preventing accidental drops and facilitating easy handling.
Implementation Method 1
a spiral spring which provides a returning force to retract the winding band into the holder
Data Source
AI summary
An open reel screwdriver tips holder includes a lower cap and a corresponding upper cap. The lower cap has a shaft to couple with a spiral spring coupled with a rotary barrel on the outer side by fastening to a tail end of it. The rotary barrel has an outer wall fastening to a winding band which has a plurality of sleeves located on a surface to hold screwdriver tips and has a drawing head exposed outside an opening of the holder peripheral wall. The rotary barrel has a plurality of latch portions on an inner wall corresponding to a latch tray which has ratchet teeth on the top surface to engage with latch teeth on the bottom of the upper cap which has a pushbutton on the top to push the latch tray downwards so that the winding band can be retracted into the holder.