Centrifugal Coupling Integrating Spring Securing Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing centrifugally actuated coupling devices face challenges in minimizing weight and size, particularly in hand-held tools, where the risk of spring breakage and subsequent damage to neighboring components is a concern, and require additional components for secure assembly which complicate the structure and increase weight.
Innovation Solution
A centrifugally actuated coupling device with a one-piece securing element integrated with the centrifugal weight, featuring wedge-shaped retaining lugs and radial securing elements, which secures the spring in place without increasing axial size, preventing lateral deflection and eliminating the need for separate securing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate disk is used to cover the entire clutch for securing springs, then spring security is improved, but device complexity and weight increase
Solution Approach 1:
The securing element is merged with the centrifugal weight to form a single integrated component. The securing element is formed as an extension of the centrifugal weight body, eliminating the need for separate securing disks or additional components. This integration maintains spring security while reducing device complexity and weight.
2Reliability
If a separate disk is used to cover the entire clutch for securing springs, then spring security is improved, but weight increases
Solution Approach 1:
The securing element is merged with the centrifugal weight to form a single integrated component. The securing element is formed as an extension of the centrifugal weight body, eliminating the need for separate securing disks or additional components. This integration maintains spring security while reducing device complexity and weight.
3Ease of operation
If separate securing components are used, then assembly flexibility is improved, but assembly complexity increases
Solution Approach 1:
The securing element is merged with the centrifugal weight to form a single integrated component. The securing element is formed as an extension of the centrifugal weight body, eliminating the need for separate securing disks or additional components. This integration maintains spring security while reducing device complexity and weight.
4Ease of manufacture
If the securing element is designed separately, then installation correction is possible, but incorrect installation risk increases
Solution Approach 1:
The securing element is merged with the centrifugal weight to form a single integrated component. The securing element is formed as an extension of the centrifugal weight body, eliminating the need for separate securing disks or additional components. This integration maintains spring security while reducing device complexity and weight.
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 results in a lightweight, compact design with reduced overall weight and simplified assembly, effectively preventing spring fragments from escaping and ensuring secure positioning of centrifugal weights, thus enhancing safety and reducing the risk of damage to adjacent components.
Implementation Method 1
a centrifugal clutch (1), in which a holder (3) has guide sockets (4) for guiding centrifugal weights (5) in the radial direction, wherein the centrifugal weights (5) have friction surfaces (18) for frictional connection to a clutch drum (2)
Implementation Method 2
adjacent centrifugal weights are connected to one another via tension coil springs (6)
Data Source
Figure 1~3
Figure 4~7
Figure 8~14
AI summary
A centrifugal coupling device has at least one centrifugal weight (5) mounted radially movable on a holder (3). The centrifugal weight (5) is movable between a radially inner and a radially outer position. The coupling device has at least one spring (6) that biases the centrifugal weight (5) towards the radially inner position. The coupling device has at least one locking element that secures at least one component of the coupling device in the direction of the axis of rotation (21) of the coupling device. A low weight and simple design of the coupling device are achieved if at least one locking element is formed integrally with the centrifugal weight (5).