Tool Handle Bit Seat with Reciprocating Resilient Arm
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Solution Overview
Problem
Conventional screwdrivers with fixed bit sizes require users to carry multiple tools, leading to inconvenience in usage and carriage, and existing solutions for bit storage stability are either unstable or require additional springs that can fall off.
Innovation Solution
A tool handle design featuring a compartment with a pivotable base, reciprocating member, coupling seat, and end cap that allows stable movement between storage and extended positions without the need for additional springs, utilizing abutment ribs and resilient arms for secure engagement and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a bit seat is made movable between storage and extended positions to enable bit selection, then bit accessibility is improved, but movement stability deteriorates
Solution Approach 1:
The bit seat is designed to be dynamically movable between storage and extended positions, allowing it to transition from a fixed state to a movable state and back. This enables bit selection while maintaining stability through controlled movement phases.
Solution Approach 2:
A retainer acts as an intermediary component between the bit seat and the handle, providing the constraining function that ensures stable movement. The retainer mediates the interaction between the movable bit seat and the fixed handle structure.
2Reliability
If a separate spring is added to constrain bit seat movement, then movement stability is improved, but device complexity increases
Solution Approach 1:
The retainer and spring are merged into a single integrated component rather than separate parts. This combination reduces the number of components while maintaining the constraining function, eliminating the risk of the spring falling off while simplifying the overall structure.
Solution Approach 2:
The integrated retainer-spring component performs multiple functions: it constrains the bit seat movement, provides the necessary spring force, and remains securely attached to the handle. This multi-functional design eliminates the need for separate components.
3Adaptability or versatility
If multiple screwdrivers with different bit sizes are carried to meet various needs, then bit versatility is improved, but carriage convenience deteriorates
Solution Approach 1:
Multiple screwdriver bits of different sizes are nested within a single handle's bit seat. The bits can be stored one inside another or arranged compactly within the confined space of the bit seat, allowing users to carry multiple bits without needing separate screwdrivers for each bit size.
Solution Approach 2:
A single handle is designed to accommodate multiple bits of different sizes through the bit seat mechanism. This universal handle can perform multiple screwdriver functions by accepting different bits, eliminating the need to carry multiple specialized tools.
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 convenient selection and use of screwdriver bits between storage and extended positions, preventing rotation and disengagement, thus enhancing operational stability without the risk of parts falling off.
Implementation Method 1
The first resilient arm includes a positioning member on a front end thereof. The reciprocating member is movable in the longitudinal direction relative to the pivotal base and not rotatable relative to the pivotal base.
Data Source
AI summary
A tool handle includes a handle receiving a bit seat movable between a storage received in a compartment of the handle and an extended position partially outside of the handle. The bit seat includes a pivotable seat, a reciprocating member, a coupling seat, and an end cap. The reciprocating member includes a resilient arm abutting against an abutment wall of the pivotable base to constrain movement. The end cap includes a tongue extending through and engaged in a central hole of the coupling seat and a receiving hole of the reciprocating member. The end cap covers an opening of the compartment when the bit seat is in the storage position. The coupling seat receives screwdriver bits. The coupling seat is located outside of the compartment when the bit seat is in the extended position.