Asymmetric Rib Corner Protector for Cargo
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Solution Overview
Problem
Existing corner protectors for cargo edges are prone to deformation and belt slipping during transport, leading to increased risk of cargo damage, especially for paper columns, due to inadequate rib construction and belt positioning.
Innovation Solution
The corner protector features non-symmetrical trapezoidal bulging reinforcing ribs with inclined sides and additional transverse stiffening ribs to enhance stiffness, along with a lowered field for belt mounting to prevent slipping, all made of plastic with a specific rib arrangement to minimize deformation and ensure secure cargo fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional straight stiffening ribs are used in the corner protector, then the structure is simple to manufacture, but the corner protector deforms under stress during transport
Solution Approach 1:
The patent applies asymmetry by changing the stiffening ribs from straight to oblong shapes with varying cross-sections. The ribs have different dimensions along their length, creating an asymmetric structure that provides enhanced stiffness and resistance to deformation while maintaining manufacturability through integral molding.
Solution Approach 2:
The patent changes the geometric parameters of the stiffening ribs by making them oblong with varying cross-sectional dimensions. This parameter change increases the moment of inertia of the ribs, thereby enhancing their stiffness and the overall resistance to deformation of the corner protector under transport stresses.
2Reliability
If the belt is placed on the smooth surface field at the same height as reinforcing ribs, then the structure is simple, but the belt tends to slip sideways during transport
Solution Approach 1:
The patent applies local quality by creating a localized recessed area or seat for belt mounting that is differentiated from the surrounding smooth surface. This local structural modification provides enhanced friction and mechanical interlocking for the belt while maintaining the overall simplicity of the corner protector design.
3Strength
If the corner protector is made with simple rib structure, then manufacturing is easy, but deformation occurs in the area between top and bulging reinforcing ribs
Solution Approach 1:
The asymmetric oblong configuration of stiffening ribs with varying cross-sections can be efficiently manufactured through integral molding processes. The asymmetric shape is directly formed during molding without requiring complex assembly operations, thus maintaining ease of manufacture while achieving enhanced structural stiffness.
Solution Approach 2:
The patent merges the stiffening ribs with the main body of the corner protector through integral molding, creating a single-piece construction. This combining of elements eliminates the need for separate assembly operations while achieving the desired structural stiffness through the optimized oblong rib geometry.
Data Source
AI summary
A corner protector, according to the invention, having the shape of one element in a shape of an angle which consists of two arms situated towards each other in an unbiased state at an angle larger than an angle of 90 degrees, moreover on the outer surface of the corner protector there are bulging reinforcing ribs, situated along longer sides of the arms, and among bulging reinforcing ribs there are stiffening ribs, which are situated along each arm from the top of the corner protector towards shorter side of the arm and these stiffening ribs are parallel to one another and to bulging reinforcing ribs, whereas on each arm there is a field with smooth surface and this field is situated among ribs and bulging reinforcing ribs, characterised in that, the stiffening ribs ( 6 ) coming out of the top ( 2 ) are joined by transversely situated partitions ( 12 ) which make transverse stiffening ribs, and the field ( 10 ), which is among ribs ( 6 , 8 ) and bulging reinforcing ribs( 3 ) is situated below upper surface of bulging reinforcing ribs ( 3 ). Bulging reinforcing ribs ( 3 ), in crosswise section, have a shape of a non-symmetrical trapezoid, in which a side (13), situated from the side of the stiffening ribs ( 6 ), is inclined towards the surface of arms ( 1 ) at smaller angle than angle of inclination of the side ( 14 ) situated from the side of the rim.