Caster Cable Deflector Layout to Prevent Roller Trapping
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Solution Overview
Problem
Existing chassis designs fail to prevent movable objects, such as cables, from being trapped by the roller assemblies, leading to abrupt stops and potential damage.
Innovation Solution
A chassis design featuring at least three roller units with a deflector positioned next to the roller assembly to guide movable objects away from the roller assembly, ensuring they are not trapped, using a deflector with specific dimensions and materials to effectively manage cable movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a roller assembly is used to enable movement of the chassis, then the chassis can move smoothly over surfaces, but movable objects such as cables may be trapped by the roller assembly causing abrupt stops and potential damage
Solution Approach 1:
A deflector element is introduced as an intermediary component between the roller assembly and the path of movable objects. The deflector has a first portion positioned to contact and guide objects away from the roller assembly, and a second portion that may contact the roller assembly. This intermediary structure prevents direct interaction between the roller assembly and cables or other movable objects, eliminating the trapping hazard while preserving smooth movement.
2Object-affected harmful factors
If the deflector is positioned close to the roller assembly to effectively guide objects away, then cable protection is improved, but the risk of the deflector itself interfering with roller rotation increases
Solution Approach 1:
The deflector is designed with dynamic characteristics where the second portion can contact the roller assembly during operation. The geometry and positioning allow the deflector to adapt its position relative to the roller assembly during movement, enabling it to effectively guide objects away while accommodating the rotational motion of the roller without causing interference or binding.
3Object-affected harmful factors
If the deflector width is increased to better guide wide objects, then object guidance effectiveness is improved, but the device complexity and material usage increase
Solution Approach 1:
The deflector is segmented into distinct portions: a first portion positioned to contact and guide movable objects away from the roller assembly, and a second portion that may contact the roller assembly. This segmentation allows each portion to be optimized for its specific function - the first portion can be wide enough to effectively guide various objects while the second portion maintains a smaller profile to minimize interference with roller rotation, thereby reducing overall material usage and structural complexity.
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a chassis, in particular for a device with a cable, with at least three roller units arranged underneath it, wherein at least one of the roller units comprises a roller holder arranged on the chassis, a roller assembly rotatably mounted on the roller holder about an axis of rotation and a deflector, wherein the deflector is connected to the roller holder and is arranged next to the roller assembly in a side view of the roller assembly seen along the axis of rotation.