Foldable Saw Handle Joint With Resilient Vibration Suppression
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Solution Overview
Problem
Existing vibration reduction solutions for early entry concrete saw handles are complex and not cost-efficient, failing to provide optimal vibration suppression for operator comfort and machine durability.
Innovation Solution
A vibration suppressing handle arm with a joint separating into two elongated parts, featuring a resilient element that generates a transverse force to resist pivoting, minimizing metal contact and using a shaft through-hole hinge mechanism for reduced vibration transmission, along with a locking pin for safety and easy folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If known vibration dampening handles are used, then vibration reduction is achieved, but device complexity increases and cost efficiency decreases
Solution Approach 1:
The handle arm is divided into two separate elongated parts that are arranged pivotable with respect to each other about a joint. This segmentation allows the resilient element to be positioned between the parts, creating vibration suppression while maintaining structural simplicity and cost-effectiveness.
Solution Approach 2:
A resilient element is introduced as an intermediary component between the first and second elongated parts. This resilient element absorbs and dampens vibration forces transmitted through the handle arm, reducing the harmful vibrations reaching the operator while keeping the overall structure simple.
2Object-affected harmful factors
If resilient element is arranged to exert transverse force, then vibration suppression is achieved, but manufacturing complexity increases
Solution Approach 1:
The resilient element is arranged to allow controlled pivoting motion between the first and second elongated parts while exerting a restoring force. This dynamic arrangement enables the handle to adapt to operational forces while maintaining vibration suppression, and the simple pivot joint makes the assembly straightforward to manufacture.
3Ease of operation
If handle arm is made foldable, then storage convenience is improved, but structural reliability may decrease
Solution Approach 1:
The handle arm is segmented into two elongated parts connected by a joint, enabling the handle to be folded into different positions. This segmentation provides folding convenience for storage and transport while maintaining structural integrity during operation through the resilient element and joint design.
Solution Approach 2:
The resilient element automatically maintains the handle arm in its operational position through its restoring force, providing self-locking functionality without additional locking mechanisms. This self-service feature ensures reliability while keeping the folding mechanism simple and robust.
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 solution provides effective, cost-efficient, and durable vibration suppression, enhancing operator comfort and machine durability while allowing easy folding and storage of the handle arm.
Implementation Method 1
a resilient element arranged to resist but not prevent pivoting by the first elongated part and the second elongated part about the joint by exerting a force directed transversal to the elongation direction of the handle arm, thereby reducing vibration in the handle arm
Data Source
AI summary
A vibration suppressing handle arm (600) for an early entry concrete saw, the handle comprising a joint separating the handle into a first elongated part (120) and a second elongated part (140), wherein the first and second elongated parts are arranged pivotable with respect to each other about the joint, wherein the first part (120) has an elongation direction configured to align with an elongation direction of the second part (140) to form an elongation direction of the handle when the handle is in an unfolded position, the handle further comprising a resilient element arranged to resist but not prevent pivoting by the first elongated part (120) and the second elongated part (140) about the joint.