Stacking Sleeve Insert for Modular Transport Trolley Stability
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Solution Overview
Problem
Existing transport trolleys, such as CC containers, face issues with stacking stability due to deformation or manufacturing tolerances, leading to potential collapse and safety hazards when stacked, especially during transportation over uneven ground or under stress.
Innovation Solution
A transport trolley system with a stacking safety device featuring a fastening insert and extension piece, anchored in the first sleeve, which engages behind a cross-sectional narrowing and secures into the second sleeve, providing internal stabilization without increasing external dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If support sleeves are designed with simple open structures for easy assembly, then ease of manufacture is improved, but stacking reliability deteriorates due to deformation and manufacturing tolerances causing slippage
Solution Approach 1:
The fastening insert is nested inside the support sleeve, with the insert's outer surface fitting within the sleeve's inner surface. The extension piece is inserted into the upper support sleeve, creating a nested configuration that provides internal stabilization without altering external dimensions. This nested structure ensures reliable stacking while maintaining ease of assembly.
Solution Approach 2:
The fastening insert acts as an intermediary element between the lower support sleeve and the extension piece. It provides a stable anchoring point inside the lower sleeve and connects to the extension piece, which then engages with the upper sleeve. This intermediary structure resolves the contradiction by providing reliable connection without requiring complex external modifications.
2Reliability
If stacking safety devices are added to prevent slippage, then stacking reliability is improved, but device complexity and space requirements increase
Solution Approach 1:
The fastening insert is contained within the support sleeve, and the extension piece fits within the upper sleeve's opening. This nested arrangement ensures that the safety device does not increase the external dimensions of the modular elements, maintaining compatibility with existing stacking configurations while providing enhanced reliability.
Solution Approach 2:
The stacking safety device is segmented into two separate components: the fastening insert (anchored in the lower sleeve) and the extension piece (inserted into the upper sleeve). This segmentation allows each component to be simple in design while collectively providing robust stacking reliability, reducing overall device complexity compared to a single complex device.
3Reliability
If support sleeves are made robust to prevent deformation, then stacking reliability is improved, but manufacturing cost and weight increase
Solution Approach 1:
The reinforcement function is extracted from the support sleeve itself and implemented through separate fastening insert and extension piece components. This allows the support sleeves to remain lightweight while the added components provide the necessary structural reinforcement for reliable stacking, avoiding the need to increase sleeve weight.
Data Source
Figure 1a~2b
Figure 3a~4b
Figure 5a~6b
AI summary
The invention relates to a transport trolley system for a transport trolley composed of modular elements, in particular for transporting plants, with at least one first transport floor (16), at least one further module element and at least one stacking safety device, wherein several support sleeves are arranged on the first transport floor, of which at least one first sleeve (17) has a clear cross-section with a cross-sectional narrowing and the cross-sectional narrowing can be accessed from behind an opening of the first sleeve, wherein the at least one further module element has at least one second sleeve (20), and wherein the stacking safety device interacts with the first sleeve of the first transport floor and the second sleeve of the further module element.The stacking safety device has a fastening insert (1) and an extension piece (4) connected thereto, wherein the stacking safety device is anchored in the first sleeve with the fastening insert, wherein at least a part of the fastening insert engages behind the cross-sectional narrowing, and wherein the extension piece connected to the fastening insert is designed to be inserted into the second sleeve.