Truckle Assembly Limiting Unit for Simultaneous Motion Control
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Solution Overview
Problem
Conventional truckle assemblies fail to effectively limit both movement and rotation simultaneously, as the arresting mechanism only restricts movement while allowing free rotation direction changes.
Innovation Solution
A truckle assembly design incorporating a housing with a sleeve and slope portion, a rotating unit with a gear ring, and a limiting unit with a pedal and arresting portion that interacts with the rotating unit and wheels to restrict both movement and rotation by meshing with the gear ring and toothed portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple arresting member is used to press the wheel, then the structure is simple, but both movement and rotation cannot be limited simultaneously
Solution Approach 1:
The patent combines the movement limitation function and rotation limitation function into a single integrated limiting unit. The pedal mechanism simultaneously engages with both the wheel (to limit movement) and the gear ring (to limit rotation), merging two separate limitation functions into one unified structure that achieves both objectives together.
Solution Approach 2:
The limiting unit is designed as a multi-functional component that performs both movement arrestment and rotation direction control. By incorporating the pedal, interferential portion, and arresting portion into a single assembly that interacts with both the wheel and rotating unit, the structure achieves universal limitation capability for both translational and rotational movements.
Data Source
AI summary
A truckle assembly has a housing, a rotating unit movably mounted on the housing, a limiting unit and a wheel assembly. The housing includes a body and a sleeve. A slope portion is formed inside the body and neighboring the sleeve. The rotating unit includes a central shaft, and a gear ring mounted on the central shaft for corresponding to a first side of the slope portion. The limiting unit includes a pedal, an interferential portion linking an end of the pedal, and an arresting portion linking an end of the interferential portion. The pedal has a first portion extending into the housing, and a second portion extending out of the housing. The interferential portion corresponds to a second side of the slope portion. The wheel assembly includes at least a wheel assembled on sides of the housing, and a shaft pole extending through the wheels and the pedal.