Robot Cable Routing Structure Preventing Interference
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Solution Overview
Problem
Existing linear-object management structures for robots face challenges in efficiently routing and fixing linear objects, such as cables, between rotating components, leading to potential interference and increased load during operation, which can result in reduced durability and increased risk of peripheral object interference.
Innovation Solution
A robot linear-object management structure that includes a base, a revolving drum, a rotatable first arm, and upper-side movable portions, with basic cables routed through a hollow portion and fixed using multiple fixing members along the arm's path, allowing for a certain length margin for operation and guiding the linear object via the same cable path to prevent expansion and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If linear objects are routed through the interior of a pipe material along the rotation axis, then the routing path is simplified and structured, but the linear objects may expand or interfere with peripheral objects during operation
Solution Approach 1:
The patent introduces guide members as intermediary components that mediate between the linear objects and the surrounding structure. These guide members constrain the linear objects along the rotation axis while preventing radial expansion and interference with peripheral objects, thus resolving the contradiction between simplified routing and operational reliability
Solution Approach 2:
The patent applies different structural characteristics to different regions: the guide members provide localized constraint in the radial direction while allowing freedom of movement along the rotation axis. This local differentiation enables the linear objects to be routed simply along the axis without risking expansion-induced interference in other regions
2Reliability
If linear objects are fixed at multiple positions along the arm, then stability and durability are improved, but the device complexity and number of components increase
Solution Approach 1:
The patent divides the fixing function into multiple discrete fixing members positioned at different locations along the arm. Each fixing member independently secures the linear object at a specific position, providing distributed support that enhances durability while keeping each individual fixing component simple and modular
Solution Approach 2:
The linear objects are led out through the hollow portion of the base before being routed along the arm and fixed at multiple positions. This preliminary routing through the base structure simplifies the overall installation process and reduces the complexity of managing multiple separate fixed points
Data Source
AI summary
A linear-object management structure for a robot, where a post-attached linear object is guided via the same path as a basic cable from inside a base and fixed at the position of a first fixing member, is subsequently extended forward beyond the basic cable, through a path closer to a first axis than the basic cable is, is curved in a direction along a first arm, is fixed to a side surface of the first arm, at the position of a second fixing member, such that a certain length margin required for the operation of the first arm is provided between the position of the first fixing member and the position of the second fixing member, and is guided to an upper-side movable portion along the first arm.