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Tension-inducing shaft assemblies

A shaft assembly and shaft cover technology, applied in the field of inflatable membranes, can solve the problems of high shipping cost and large volume

Pending Publication Date: 2021-10-15
SEALED AIR SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the volume of the roll and its high volume-to-weight ratio, shipping costs are relatively high
Additionally, the large volume-to-weight ratio means that a relatively large storage area may be required to store stock cushions

Method used

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  • Tension-inducing shaft assemblies
  • Tension-inducing shaft assemblies
  • Tension-inducing shaft assemblies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] This disclosure describes embodiments of a membrane inflation system for inflating and sealing an inflatable membrane. Additionally, this disclosure describes various components of the film inflation system, including nozzles, sealers, idlers, and end caps for film supply rolls.

[0056] The nozzles in the membrane inflation system inflate the inflatable channels in the membrane. Some nozzle designs do not properly inflate the inflatable channels in the membrane. In some cases, inconsistent inflation rates resulted in air bubbles and air pillows being unusable in the package. Embodiments of nozzles that achieve proper inflation are described herein. In one example, the nozzle includes: a proximal end that separates the two sides of the common membrane to open the common channel when the membrane moves along the membrane path; when moving, the distal end permits both sides of the membrane to collapse; and a slot configured to guide gas laterally into the common channe...

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PUM

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Abstract

A tension-inducing shaft system includes a shaft, two shaft caps, and a biasing mechanism. A bore extends through the shaft between two ends of the shaft. The shaft caps are positioned on the two ends of the shaft. Each shaft cap includes a collar having a size that is larger than the bore, a keyed end, and an anchor. The biasing mechanism is arranged inside the bore and is coupled to the anchors of the shaft caps so that the biasing mechanism exerts inward forces on the shaft cap. The keyed ends of the shaft caps can be coupled to a housing so that the shaft caps do not rotate with respect to the housing. The shaft is configured to rotate with respect to the shaft caps such that, when the keyed ends are coupled to the housing, the shaft is capable of rotating with respect to the housing.

Description

technical field [0001] This disclosure is in the technical field of inflatable membranes. More specifically, the present disclosure relates to tension inducing shafts that resist rotation of a roll of film to induce tension in the film as it is retracted from the roll. Background technique [0002] Air cellular cushioning is often used to protect items during shipment. One such product is Bubble Wrap® air honeycomb cushioning sold by SealedAir Corporation. Air cellular cushioning is typically prepared at the production plant and shipped in rolls to distributors and end users. Since the roll is bulky and has a high volume-to-weight ratio, shipping costs are relatively high. Additionally, the large volume-to-weight ratio means that a relatively large storage area may be required to store stock cushions. [0003] To address these problems, inflatable films have been shipped to end users in supply rolls having a relatively low volume-to-weight ratio. The end user is able to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H23/08B31D5/00B65H75/18
CPCB65H2701/1752B65H2301/51432B65H2404/1415B65H2301/41346B65H2301/41306B65H2404/147B65H2404/185B65H2515/40B65H2701/1944B65H2406/10B65H23/08B65H75/185B31D5/0073B65H2301/41369B31D2205/0023B31D2205/0047B65H2301/46115B65H2220/02B65H23/085
Inventor A·T·伍德
Owner SEALED AIR SAS
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