Freight Container Pin-Opening Corner Reinforcement
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Solution Overview
Problem
Conventional freight containers are heavy, requiring significant energy for transportation and movement, which is environmentally burdensome.
Innovation Solution
The use of strengthening means comprising an opening and a pin, which automatically engage without play in the closed position, allowing for a thinner construction without additional weight, providing virtual right-angled triangles for enhanced strength and enabling the container to withstand high lateral loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional strengthening means (strengthening plates) are used, then the strength of the freight container is improved, but the weight of the freight container increases
Solution Approach 1:
The invention extracts the essential strengthening function from bulky strengthening plates and concentrates it into a minimal pin element. The pin, when inserted into the opening at the corner of the door part, provides the necessary structural reinforcement without the weight penalty of traditional plate-based strengthening means.
Solution Approach 2:
Instead of distributing strengthening across entire surfaces, the invention applies strengthening locally at the critical corner region where the door part meets the frame beam. The pin positioned at this specific location provides maximum structural benefit with minimum material usage, addressing the local stress concentration point rather than the entire structure.
2Strength
If thicker construction of frame beams and door parts is used, then the strength of the freight container is improved, but the weight of the freight container increases
Solution Approach 1:
The opening is pre-positioned at the corner of the door part during manufacturing, and the pin is pre-formed with complementary geometry. When assembled, the pin automatically engages with the opening to provide strengthening, eliminating the need for post-assembly modifications or additional material addition.
Solution Approach 2:
The invention changes the geometric parameters of the corner region by introducing a pin with specific dimensional relationships to the opening. The pin's diameter, length, and positioning are optimized to provide maximum strengthening effect while minimizing weight, transforming the corner from a simple joint to a reinforced connection point.
Data Source
AI summary
A freight container (1) which, for loading freight therein, comprises a bottom (6), a roof (7), two end walls (2) extending between the bottom and the roof, as well as two longitudinal side walls (9, 11) connected to said bottom and said roof, at least one end wall being provided with a hinged door(4, 5) comprising at least two door parts (4, 5), which are each connected by hinge constructions (21, 23, 25) on one side to a frame beam (3) extending between the bottom and the roof, which door parts can be locked from outside by an operator.