Turning Extension Mechanism Using Dual-Speed Drive Coordination
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Solution Overview
Problem
Existing extension/contraction mechanisms cannot turn in addition to extending or contracting, limiting their functionality.
Innovation Solution
Incorporating a gear group with a first drive source and a second drive source connected to a turning part, allowing the extension/contraction part to turn when rotational speeds from both sources are equal, and extend or contract when speeds differ, using a first belt and second belt with engagement pins and holes to achieve the desired motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single drive source is used for extension/contraction, then the structure is simple, but the extension/contraction part cannot turn
Solution Approach 1:
The patent combines two drive sources into a single integrated system where the first drive source (motor 211) controls extension/contraction through the sending/pulling part (screw shaft 24), and the second drive source (motor 212) controls turning through the turning part (main shaft 22). Both drive sources share a common base part (5) and coordinate their operations to achieve combined extension/contraction and turning motions, resolving the contradiction between motion versatility and structural simplicity.
Solution Approach 2:
The base part (5) serves multiple functions: it supports the extension/contraction part (4), mounts both drive sources (211, 212), and provides the structural framework for the turning mechanism. This multi-functional design allows the system to achieve both extension/contraction and turning capabilities without requiring separate independent structures for each function.
2Adaptability or versatility
If separate drive sources are used for extension/contraction and turning, then motion versatility is improved, but device complexity increases
Solution Approach 1:
Both drive sources (211, 212) are mounted on the same base part (5) and work in coordination. The first drive source (211) drives the sending/pulling part (24) for extension/contraction, while the second drive source (212) drives the turning part (22) for turning. This merged configuration on a common base reduces overall system complexity compared to completely separate drive systems.
3Adaptability or versatility
If multiple drive parts are used, then both extending/contracting and turning motions are achieved, but the size and weight of the mobile body increase
Solution Approach 1:
The patent merges both drive functions onto a common base part (5), allowing the two motors (211, 212) to share mounting space and structural support. This reduces the overall footprint and weight compared to having completely separate drive assemblies, while still providing both extension/contraction and turning capabilities.
Solution Approach 2:
The base part (5) serves as a multi-functional platform that supports both drive sources, the extension/contraction mechanism, and the turning mechanism. This universal structure eliminates the need for additional separate mounting structures, reducing overall system weight and complexity.
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
Enables both extending/contracting and turning motions of the extension/contraction part, reducing the size and weight of the mobile body by combining the outputs of the drive parts, allowing for efficient operation.
Implementation Method 1
the first belt and the second belt are drawn out and wound in a spiral shape, which causes the extension/contraction part to be extended
Implementation Method 2
a second drive source connected to the sending/pulling part and a turning part that rotatably supports the sending/pulling part in such a way that the second drive source is able to transmit a drive force to the sending/pulling part and the turning part via a gear group
Data Source
AI summary
An extension/contraction mechanism in which an extension/contraction part is able to turn is provided. An extension/contraction mechanism according to one aspect of the present disclosure includes a first drive source connected to a sending/pulling part so as to be able to transmit a drive force, and a second drive source connected to the sending/pulling part and a turning part that rotatably supports the sending/pulling part so as to be able to transmit a drive force via a gear group. When a rotational speed transmitted to the sending/pulling part to rotate the sending/pulling part by the first drive source is equal to a rotational speed transmitted to the sending/pulling part to rotate the sending/pulling part by the second drive source, an extension/contraction part turns via the turning part. When the above rotational speeds are different from each other, the extension/contraction part is extended or contracted.