Screwdriver Handle Bit Magazine Axial Dispersion Mechanism
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Solution Overview
Problem
Existing screwdriver handles with bit magazines make it difficult to easily remove and insert bits due to their close angular spacing, which complicates access and handling.
Innovation Solution
A screwdriver handle design featuring an inner cylindrical cavity with a bit holder that can be moved axially to spread the bits outward in a removal position, allowing for easier access and handling, utilizing a mechanical guide and spring tension to pivot the bits outward, and a cap that locks in the storage position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the bits are arranged circumferentially with a small angular distance to maximize storage capacity, then the storage capacity is improved, but the ease of removing and inserting bits deteriorates
Solution Approach 1:
The bit holder is designed to be axially displaceable relative to the bits, transitioning between a storage position (where bits are closely spaced) and a removal position (where bits are spread apart). This dynamic reconfiguration allows the system to optimize for both storage capacity and ease of bit handling at different operational stages.
Solution Approach 2:
The solution moves the bits from a two-dimensional circumferential arrangement to a three-dimensional configuration by axially displacing the bit holder. This creates radial space between the bits when in removal position, making them easier to access while maintaining high storage density when in storage position.
2Productivity
If the bits are arranged with minimal angular separation to optimize cavity utilization, then the storage efficiency is improved, but the accessibility of bits for removal and insertion deteriorates
Solution Approach 1:
The bit holder's axial displacement mechanism dynamically changes the spatial arrangement of bits between storage and removal states, allowing the system to achieve both high storage efficiency and bit accessibility as needed.
Solution Approach 2:
The axially displaceable bit holder acts as an intermediary mechanism that mediates between the cavity wall and the bits. By moving this intermediary component, the system can control the spacing between bits without permanently altering the storage configuration.
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 efficient storage and easy access to bits by increasing the radial and angular distance between them, simplifying the process of removing and inserting bits while maintaining optimal storage capacity.
Implementation Method 1
Preferably, the guidance is achieved by an elastic preload that holds the bits in the bit holder against the inner wall of the cavity and pivots the bits outwards as soon as they exit the cavity and are no longer radially supported by the inner wall.
Implementation Method 2
The bit holder has pockets distributed around the circumference of the sleeve into which the bits can be inserted axially. These pockets are pivotally mounted on the sleeve and are spring-loaded to swing outwards.
Data Source
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AI summary
The handle has a magazine, and a body (10) comprising a leading end and a posterior end. A tool shank (12) is arranged at the body. A cylindrical cavity (20) is arranged at the tool shank. A bit support is arranged in the cavity. The bit support comprises a bit retainer at a front inner end of a case (24), and a set of bits (16) is inserted in the bit retainer. The bit retainer holds the bits in a storage position parallel to an axis of the case, and the bits are splayed with free ends of the case in a removal position.