Transport Bag Latching Strips for Conveyor Unloading
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Solution Overview
Problem
Existing transport bags for conveyor systems are difficult to open and close efficiently, particularly at the lower end, which complicates the unloading process and may lead to unintentional opening.
Innovation Solution
A transport bag design featuring parallel latching strips that can be reversibly coupled and uncoupled by moving them relative to each other in a longitudinal direction, with locking elements held in recesses for secure closure and easy release, and a conveyor system with pressure means for automatic unlocking and locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lower ends of the bag walls are connected by a clutch operable by an actuating mechanism, then the transport bag can be closed securely, but the opening and closing process becomes complex and difficult to operate
Solution Approach 1:
The closing mechanism is divided into two independent latching strips (first and second latching strips) that can be operated separately. Each strip has its own latching elements that engage with corresponding elements on the opposite strip, allowing the complex closure function to be broken down into simpler, more manageable operations that are easier to control and maintain.
Solution Approach 2:
Instead of using a complex actuating mechanism to actively engage the clutch, the invention uses passive latching elements that automatically engage when the latching strips are brought together. The securing function is achieved by the natural engagement of latching elements rather than active actuation, simplifying the operation while maintaining reliability.
2Reliability
If the latching strips are designed with multiple locking elements spaced apart, then the transport bag is more reliable and prevents unintentional opening, but the structure becomes more complex
Solution Approach 1:
Multiple locking elements are distributed along the length of the latching strips at spaced intervals. This segmentation of the latching function into multiple discrete points provides redundant security - if one latching element fails or is inadvertently disengaged, other elements maintain the secure closure. The complex reliability requirement is met through simple repetition of basic latching units.
Solution Approach 2:
The latching elements are designed with uniform structure and spacing along the strips. Each latching element consists of similar components (latching protrusions and corresponding recesses) arranged at regular intervals. This homogeneous repetition simplifies manufacturing and maintenance while providing consistent reliability throughout the entire length of the closure mechanism.
3Ease of operation
If the latching strips are moved relative to each other in the longitudinal direction for unlatching, then the opening process becomes simpler, but the risk of unintentional opening increases
Solution Approach 1:
The latching elements are designed with asymmetric geometry where the engagement direction (for closing) requires significant force to compress the elastic element, while the disengagement direction (for opening) allows easy movement. This asymmetric design enables simple unlatching by moving the strips relative to each other, while the same asymmetric geometry prevents unintentional opening during normal transport conditions.
Solution Approach 2:
The elastic element is pre-compressed during the latching process, storing energy that actively maintains the engaged state. This preliminary action creates a force that opposes any unintended separation, preventing accidental opening while allowing controlled opening when deliberate force is applied in the longitudinal direction.
Data Source
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AI summary
The invention relates to a transport bag (1) for a conveying device, comprising a first bag wall (2), a second bag wall (3) and a hanging device (7) arranged at an upper end of one of the bag walls (2, 3), wherein respective closing elements are arranged at a lower end of the bag walls (2, 3) at a distance from the hanging device (7), which can be reversibly coupled to one another, and with which the lower ends of the bag walls (2, 3) can be connected to one another to form a bag base, wherein the closing elements are designed as engaging strips (8, 9) that are oriented in parallel to one another and can be engaged with one another, wherein the engaging strips (8, 9) are designed in such a way that they can be pressed against one another transverse to the longitudinal axis (I) of the engaging strips (8, 9) in order to adopt an engaged transport position closing the transport bag (1) at the lower end, wherein the engaging strips (8, 9) are designed in such a way that they can be moved from the engaged transport position closing the transport bag (1) at the lower end into a disengaged position by moving the engaging strips in relation to one another in the direction of the longitudinal axis (I) of the engaging strips (8, 9), in which disengaged position the engaging strips (8, 9) can be detached from one another in order to open the transport bag (1) at the lower end.