Roller Suspension Mount for Low-Friction Dynamic Load Hooking
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Solution Overview
Problem
Current suspension systems for dynamic loads, such as swings, face issues with material fatigue due to bending stress, low kinetic energy conservation, and difficulty in quick hooking and unhooking without tools, along with high internal friction reducing oscillation duration.
Innovation Solution
A suspension device featuring a roller with a circumferential groove for frictional mounting and a manual safety device that can be moved between locking and release positions, allowing secure and convenient attachment and detachment of dynamic loads, with a design that maximizes kinetic energy conservation and load-bearing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a classical hook or ring is used for suspending dynamic loads, then the oscillating properties are satisfactory, but the hook/ring is subject to strong bending stress that may lead to material fatigue and breaking
Solution Approach 1:
The suspension device is divided into separate functional components: a carrier for mounting, an axial member, a roller for frictional engagement, and a safety device. This segmentation allows each component to perform its specific function optimally - the roller handles frictional contact while the carrier provides structural support, reducing stress concentration and improving reliability
Solution Approach 2:
The roller acts as an intermediary element between the connecting component and the axial member. It provides a frictional contact surface that allows oscillating movement while distributing loads, preventing direct bending stress on the carrier and improving both oscillating properties and material fatigue resistance
2Reliability
If suspension devices with integrated mobile joints are used, then the load-carrying capacity and security are high, but quick hooking-in and hooking-off without tools is not possible and internal friction is high reducing oscillation duration
Solution Approach 1:
The safety device is designed to be movable between a locking position (providing high security) and a release position (enabling quick hooking/unhooking). This dynamic design allows the system to adapt its characteristics based on operational needs - secure during use, convenient during attachment/detachment
Solution Approach 2:
The safety device can be operated manually without tools by the user. The connecting component can be hooked onto the roller when the safety device is in the release position, and the system automatically provides security when in the locking position, eliminating the need for additional tools or complex operations
3Reliability
If suspension devices with integrated mobile joints are used, then the load-carrying capacity is high, but the internal friction is high which reduces the maximum duration of oscillating movement
Solution Approach 1:
The roller provides a frictional contact surface that reduces sliding friction compared to traditional joint mechanisms. By allowing the connecting component to rotate on the roller rather than through complex mechanical joints, the system minimizes internal friction and energy loss, conserving kinetic energy during oscillation while maintaining high load-carrying capacity
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 a reliable and long-lasting suspension system that conserves kinetic energy, ensures secure attachment and easy operation, and prevents unintentional detachment, while minimizing material fatigue and internal friction.
Implementation Method 1
a roller rotatably mounted on the axial member and having a circumferential groove into which the connecting component can be hooked in frictionally... frictional forces only occur in the mounting of the roller... a high conservation of the kinetic energy can be achieved
Data Source
AI summary
A suspension device for a connecting component (5) to which a dynamic load is mountable and which forms at least one eye, the suspension device comprising an axial member (2) fixed to a carrier (1), a roller (3) rotatably mounted on the axial member (2) and having a circumferential groove into which the connecting component (5) can be hooked in frictionally, and at least one safety device (4) adapted to be moved manually from a locking position, in which it prevents a hooking-in or hooking-off of the connecting component (5), into a release position permitting a hooking-in or hooking-off of the connecting component (5).