Telescopic Extension Mechanism With Roller Support Against Swing
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Solution Overview
Problem
The existing extension/contraction mechanism can cause the extension/contraction part to swing with respect to the base part when extended or contracted, leading to instability.
Innovation Solution
Incorporating a support part that contacts the inner or outer peripheral surface of the extension/contraction part to prevent wobble, including roller units aligned to oppose each other and biased towards the extension/contraction part, which are arranged to avoid engagement pins and maintain contact along the extending/contracting direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the extension/contraction part is extended or contracted using a telescopic mechanism with belts and engagement pins, then the length of the mobile body can be adjusted, but the extension/contraction part may swing with respect to the base part causing instability
Solution Approach 1:
Rollers are introduced as intermediary elements between the extension/contraction part and the base part. These rollers contact the inner peripheral surface of the extension/contraction part and prevent swinging motion while allowing the telescopic extension/contraction function to operate normally
Solution Approach 2:
The support function is segmented into multiple rollers distributed around the extension/contraction part. This segmentation allows the support part to contact the extension/contraction part at multiple points, effectively preventing swing in multiple directions simultaneously
2Stability of the object's composition
If rollers are added to prevent swing of the extension/contraction part, then stability is improved, but the device complexity increases
Solution Approach 1:
The rollers are merged with the existing base part structure. The support part is integrated into the base part such that the rollers are positioned to contact the extension/contraction part while being supported by the base part, combining multiple functions into a unified structure
Solution Approach 2:
The rollers serve multiple functions: they prevent swinging motion of the extension/contraction part, support the telescopic mechanism, and maintain proper alignment during extension and contraction 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
This solution effectively prevents the swing of the extension/contraction part during extension and contraction, ensuring stability and reducing wear by maintaining consistent contact and alignment.
Implementation Method 1
a support part that contacts an inner peripheral surface or an outer peripheral surface of the extension/contraction part in order to prevent a wobble in a root part of the extension/contraction part with respect to the base part
Implementation Method 2
the rollers of the first roller unit or the rollers of the second roller unit may be biased toward the extension/contraction part by a biasing member
Data Source
AI summary
An extension/contraction mechanism capable of preventing a swing of an extension/contraction part when it is extended or contracted is provided. An extension/contraction mechanism according to one aspect of the present disclosure is an extension/contraction mechanism including a telescopic extension/contraction part and a base part that supports the extension/contraction part so that it can be extended/contracted, in which the extension/contraction mechanism includes a support part that contacts an inner peripheral surface or an outer peripheral surface of the extension/contraction part in order to prevent a wobble in a root part of the extension/contraction part with respect to the base part, and the support part is provided on a side surface of the base part that is opposed to the inner peripheral surface or the outer peripheral surface of the extension/contraction part that the support part contacts.