Caster Directional Mechanism Locking Stability
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Solution Overview
Problem
Existing caster devices with directional mechanisms suffer from poor directional stability and ease of turning from directional to universal states, compromising the balance between stability and maneuverability.
Innovation Solution
A caster device design featuring a directional mechanism with a movable directional component intersecting the pivoting axis of the wheel module, which is detachably engaged with a column, allowing for rapid and secure orientation by utilizing a supporting shaft, sheath, and resilient components to facilitate locking and orientation operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a directional mechanism with a directional pin and spring is used to lock the caster bracket, then the caster can be fixed in a directional state, but the directional pin cannot be inserted into the hole pit rapidly and the directional effect is poor
Solution Approach 1:
The directional component is designed to move dynamically between a first position (engaged with the column for directional locking) and a second position (disengaged for universal movement). This dynamic positioning system allows rapid transition between locked and unlocked states, solving the contradiction between reliable directional locking and ease of operation.
Solution Approach 2:
A resilient component acts as an intermediary between the directional component and the column. This resilient intermediary facilitates rapid engagement and disengagement by providing elastic force that assists the directional component in moving into and out of the locking position, thereby improving both the speed of locking and the reliability of the directional effect.
2Adaptability or versatility
If a directional mechanism is disposed on the universal wheel device, then the universal wheel device can act as a directional wheel device, but the directional pin cannot be inserted rapidly for locking
Solution Approach 1:
The directional component is preliminarily positioned within the wheel module such that it can rapidly move into the engaged position with the column when needed. This preliminary positioning arrangement eliminates the need for complex adjustment mechanisms, allowing quick transition from universal to directional state without time loss.
Solution Approach 2:
The resilient component provides self-service by automatically assisting the directional component in engaging with the column through elastic force. This self-service mechanism reduces the time required for orientation operations as the resilient component naturally propels the directional component into the locked position without requiring additional actuation force or time.
3Device complexity
If the directional pin is disposed on the directional mechanism near the protecting cover, then the structure is compact, but the caster is easily turned from directional to universal state
Solution Approach 1:
The directional mechanism is segmented into distinct functional components: the directional component that engages with the column, the resilient component that provides locking force, and the wheel module that houses the mechanism. This segmentation allows each component to be optimized for its specific function while maintaining overall structural compactness, ensuring reliable directional locking without increasing overall device complexity.
Solution Approach 2:
The directional component features a curved engagement surface that interfaces with the column. This curved geometry provides a larger contact area and more favorable force distribution compared to a linear pin design, enhancing the directional locking strength while maintaining compact dimensions. The curved surface also facilitates smoother engagement and disengagement operations.
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 enhances directional stability and efficiency while maintaining maneuverability, allowing for easy transition between universal and directional states, thus improving the overall performance of the caster device.
Implementation Method 1
a resilient component... to facilitate locking and orientation operations
Data Source
AI summary
The present invention discloses a caster device comprising a column, a wheel module and a directional mechanism. The wheel module is pivoted on the column. The directional mechanism includes a directional component movably disposed inside the wheel module and detachably engaged with the column. A moving direction of the directional component is intersected with a pivoting axis of the wheel module. Because the moving direction of the directional component of the present invention is intersected with the pivoting axis of the wheel module, the column is locked well, so as to result in a better orientation effect by using the directional mechanism. The directional component is movably disposed inside the wheel module, so that the directional component is intersected with the pivoting axis of the wheel module rapidly, so as to increase an operating efficiency for orientation.