Elastic Hook Fall Arrest Shutter for Logistics Modules

The patent applies the dynamics principle by replacing rigid fixing mechanisms with an elastic band that can dynamically adapt its length and tension. The elastic band stretches and contracts based on the distance between uprights and the force applied during attachment, enabling easy removable attachment while maintaining secure holding when attached. This dynamic flexibility resolves the contradiction between strong attachment and ease of removal.

The patent utilizes parameter changes by employing an elastic band whose physical parameters (length, tension, elasticity) can change based on operational needs. The band's elastic properties allow it to accommodate varying distances between uprights on different logistics module configurations while maintaining sufficient attachment strength. This parameter adaptability enables both reliable attachment and ease of operation across different scenarios.

The patent applies preliminary action by pre-configuring the elastic band with appropriate elastic coefficients and pre-tension characteristics before use. The band is designed with specific elastic properties that ensure sufficient attachment strength is maintained even when stretched across varying distances. This preliminary design of the elastic band's mechanical properties ensures that adaptability does not compromise reliability.

The patent employs composite materials by combining the elastic band with a hook device and stopper element. The elastic band provides flexibility and adaptability, while the rigid hook and stopper components provide reliable mechanical engagement and prevent detachment. This composite approach combines the advantages of elastic materials with rigid fastening elements to achieve both adaptability and reliable attachment strength.

The patent introduces a stopper element as an intermediary component between the elastic band and the upright. The stopper prevents the elastic band from extending beyond a certain length, thereby maintaining sufficient tension even when the band is relatively long. This intermediary element ensures that the band's length does not compromise its ability to provide effective fall prevention, while still allowing adequate flexibility for different configurations.

The patent applies preliminary anti-action by designing the elastic band with inherent elastic resistance that counteracts excessive extension. The band's elastic properties create a restoring force that prevents over-stretching, ensuring that sufficient tension is maintained to prevent falls. This built-in anti-action mechanism allows the band to be longer and more flexible without compromising fall prevention effectiveness.