Silo Bag Loop Connection for Safe Disassembly

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing silos with rigid frames and flexible canvas bags face challenges in disassembly, leading to risks of falling crossbeams and tedious manual handling during maintenance, which can cause physical harm and inefficiency.

Innovation Solution

The silo design incorporates flexible fabric panels with staggered notches and alternating engagement of bars through loops, secured by anti-slip rings, allowing for secure attachment and easy assembly/disassembly without heavy lifting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If crossbeams are individually engaged in loops of canvas panels during assembly, then the bag can be attached to the rigid frame, but the disassembly process becomes tedious and increases the risk of falling crossbeams

Engineering Contradiction:
Improvesafety during assembly and disassemblyVSAvoidease of disassembly
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connection system is segmented into modular components: canvas panels with loops, removable bars, and retaining elements. Each crossbeam connection is divided into discrete elements that can be independently assembled and disassembled, transforming a complex manual operation into a simple modular connection system where bars are merely inserted into pre-positioned loops and secured with retaining elements

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Retaining elements act as intermediary components between the bars and loops, serving as the active locking mechanism. These retaining elements engage with the bars to prevent accidental disengagement during operation, yet can be easily removed when disassembly is needed, thus mediating between the need for secure attachment and easy disassembly

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If crossbeams are individually engaged in loops one by one, then the attachment is secure, but heavy loads must be manually handled increasing physical risk

Engineering Contradiction:
Improveattachment strengthVSAvoidphysical harm to operators
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The heavy crossbeam structure is functionally segmented by introducing removable bars as intermediate connection elements. The bars are lightweight compared to crossbeams and can be easily handled, while the crossbeams themselves remain fixed to the frame structure. This segmentation allows operators to handle only the lightweight bars and retaining elements rather than the heavy crossbeams, eliminating manual lifting risks while maintaining attachment strength

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bars serve as intermediary elements that transfer the connection function from direct crossbeam-to-loop engagement to bar-to-loop engagement. Since bars are lightweight and easy to handle compared to crossbeams, they eliminate the need for manual handling of heavy loads while maintaining the structural connection integrity through the bar-loop-retaining element system

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If the silo structure uses traditional crossbeam attachment methods, then the frame provides rigid support, but assembly and disassembly time is excessive

Engineering Contradiction:
Improveframe structural strengthVSAvoidassembly and disassembly time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The connection process is segmented into two distinct phases: structural attachment (crossbeams to frame) and functional connection (bars to loops with retaining elements). The crossbeams remain permanently fixed to the frame providing structural strength, while the bars and retaining elements form a quick-connect/disconnect system. This segmentation allows the structural framework to be assembled once for long-term use, while maintenance operations only require quick removal and reinstallation of lightweight bar components

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The loops are pre-attached to the canvas panels during manufacturing, and crossbeams are pre-fixed to the frame structure. This preliminary preparation eliminates the need for complex field assembly operations. During maintenance, operators simply need to insert bars into the pre-positioned loops and secure them with retaining elements, reducing assembly time from hours to minutes while maintaining full structural strength

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4389639B1Silo with rigid reinforcement and bag made of flexible fabric for storing bulk material
Publication Date: 2026.03.25 SYVRAC
  • EP4389639B1 patent drawingFigure 1~2
  • EP4389639B1 patent drawingFigure 3A~3B
  • EP4389639B1 patent drawingFigure 4~5

AI summary

The invention relates to a silo (1) for storing a bulk material, which comprises a frame (2), as well as a flexible fabric storage bag (3) for said material, said frame (2) comprising at least four vertical corner posts (20), as well as a plurality of horizontal crossbars (22) which are fixed to two adjacent posts (20), said bag (3) comprising panels of flexible fabric (33, 34), each shaped to cooperate with said crossbars (22), so as to allow the attachment of said bag (3) to said frame (2), characterized in that said fabric (3) comprises a pair of panels (33, 34) of flexible fabric, the free end of which is shaped into a closed loop which forms a "loop", each panel partially encircling a crossbar (22), the loops of said panels (33, 34) having cutouts forming notches arranged alternately in a staggered pattern,a bar (4) being alternately engaged in the loop of one panel (33) and in the loop of the other panel (34), and so on, thus retaining said panels (33, 34).