Fastener Driver Weight Balance for Ergonomic Alignment
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Solution Overview
Problem
Existing power-assisted fastener drivers suffer from weight imbalance and ergonomic issues, leading to user fatigue and difficulty in aligning the tool with the workpiece due to offset centers of gravity and cantilevered loads.
Innovation Solution
The fastener driver tool design optimizes the center of gravity within the grip portion of the housing, incorporating the drive mechanism and battery pack, and includes an ergonomic grip and shoulder strap to reduce moments and cantilevered loads, enhancing user comfort and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the magazine holding a sufficient number of fasteners is used, then productivity is improved, but weight of the tool increases
Solution Approach 1:
The tool is divided into modular components including a removable magazine, battery pack, and main body. The magazine can be detached and replaced, allowing users to carry multiple magazines rather than requiring one large heavy magazine to hold all fasteners for extended operation.
2Stability of the object's composition
If the center of gravity is offset from the grip portion, then structural stability is improved, but ease of operation deteriorates
Solution Approach 1:
The battery pack serves a dual function: providing electrical power to the motor and acting as a counterweight to balance the tool. By positioning the battery pack in the power supply portion, the center of gravity is adjusted to be within the grip portion, creating a counterbalancing effect that offsets the weight of the magazine and drive mechanism, thereby reducing cantilevered loads and improving ease of operation.
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
The optimized design reduces user fatigue and improves alignment accuracy by balancing the tool's weight distribution, allowing for more comfortable and efficient operation.
Implementation Method 1
a motor, a gearbox operably connected to the motor, and a striking mechanism operably connected to the gearbox
Implementation Method 2
a gearbox operably connected to the motor
Implementation Method 3
The striking mechanism is configured to strike a corresponding fastener of the plurality of fasteners using rotation from the gearbox as rotated by the motor
Data Source
AI summary
A fastener driver tool includes a housing, a drive mechanism, a battery pack, and a fastener magazine. The housing has a grip portion located between a power supply portion and a drive portion. The drive mechanism includes (i) a motor, (ii) a gearbox operably connected to the motor, and (iii) a striking mechanism operably connected to the gearbox. The battery pack is received by the power supply portion and is configured to supply the motor with electrical energy. The fastener magazine is configured to hold a plurality of fasteners. The fastener magazine is mounted on the housing and operably connected to the striking mechanism. The motor and the gearbox are located in the grip portion of the housing. The striking mechanism is located in the drive portion of the housing. A center of gravity of the fastener driver tool is located within the grip portion.