Impact Tool Adjustable Elastic Member Striking Force
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Solution Overview
Problem
Existing impact tools lack the ability to adjust striking force effectively for various tasks, as they rely solely on motor rotational speed and do not provide a mechanism to dynamically adjust the elastic force applied to the hammer, limiting their versatility.
Innovation Solution
The impact tool incorporates a motor-driven hammer with an adjustable elastic member, supported by a positioner that can change the support position and initial length of the elastic member, allowing for multiple operational modes with different rotational speeds and elastic forces, enabling the tool to strike the anvil with a force appropriate for specific tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the impact tool uses a fixed elastic member configuration, then the structure is simple, but the striking force cannot be adjusted for various tasks
Solution Approach 1:
The elastic member's support position is made adjustable through the positioner mechanism, allowing the initial length and elastic force to be dynamically changed. The positioner can move the support position between multiple positions in the front-rear direction, enabling the tool to adapt to different task requirements by changing the elastic force applied to the hammer.
Solution Approach 2:
The invention changes the physical parameters of the elastic member system by adjusting its initial length through positioner movement. By changing the support position of the elastic member, the initial length is modified, which directly changes the elastic force characteristics. This parameter adjustment allows the same elastic member to provide different striking forces for various tasks.
2Adaptability or versatility
If the impact tool relies solely on motor rotational speed for operation, then the control is simple, but the versatility for different tasks is limited
Solution Approach 1:
The impact tool achieves multi-functionality by combining motor rotational speed control with elastic force adjustment. The positioner mechanism enables the same tool to perform different tasks by adjusting the elastic force parameter, making the tool universally applicable to various screwing operations requiring different striking forces, without needing multiple specialized tools.
3Adaptability or versatility
If the elastic member initial length is fixed, then the manufacturing is simple, but the striking force cannot be optimized for different applications
Solution Approach 1:
The positioner mechanism divides the support position adjustment into discrete positions in the front-rear direction. This segmentation allows the elastic member's support position to be changed between multiple predetermined positions, providing optimized striking forces for different applications while maintaining a relatively simple manufacturing approach compared to continuous adjustment mechanisms.
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
This solution allows the impact tool to operate in multiple modes, adjusting the striking force and rotational speed to suit various tasks, enhancing its versatility and effectiveness in applications such as screwing operations by dynamically changing the elastic force applied to the hammer.
Implementation Method 1
an elastic member extendable and contractable in a front-rear direction to apply an elastic force to the hammer toward the anvil
Data Source
AI summary
An impact tool has a mechanical structure to strike an anvil with a striking force appropriate for a task. An impact tool includes a motor, a hammer rotatable by the motor, an anvil that receives a tip tool and is strikable by the hammer in a rotation direction, an elastic member having a front end supporting the hammer and being extendable and contractable in a front-rear direction to apply an elastic force to the hammer toward the anvil, and a positioner supporting a rear end of the elastic member. The positioner changes a support position of the positioner supporting the rear end of the elastic member in the front-rear direction.