Bundle of tubular and/or rod-shaped glass articles, method for its fabrication as well as for unpacking said bundle

Patent metadata

Field	Value
Publication number	US-12246908-B2
Application number	US-202318338535-A
Country	US
Kind code	B2
Filing date	Jun 21, 2023
Priority date	Mar 2, 2020
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

A bundle of tubular and/or rod-shaped glass articles is provided that includes a longest dimension, a plurality of layers (N L ) of the glass articles, and a thread-like element. The longest dimension extends in a first direction. The glass articles in each layer are arranged side by side in a second direction. The plurality of layers are arranged side by side in a third direction. The first, second, and third directions being perpendicular to one another. The thread-like element is around two of the glass articles in at least one layer so that the two glass articles are spaced apart.

First claim

What is claimed is:

1. A method for unpacking a bundle of tubular and/or rod-shaped glass articles, comprising:
holding the bundle in a locked position; and
pulling a thread-like element that is wrapped around at least two of the glass articles so that the thread-like element is withdrawn from the bundle,
wherein the thread-like element has a minimum cross section (c r ), wherein the thread-like element is wrapped around the glass articles at a plurality of different spaced positions (n t ) along the length of the glass articles, wherein the plurality of different spaced positions and the minimum cross section are selected according to:

C R - value

Less than
6000 . . .
12000 . . .
More than

N L
3000
12000
20000
20000

Less than 8
n t ≥ 2,
n t ≥ 2,
n t ≥ 3,
n t ≥ 4,

c t ≥ 0.5 mm
c t ≥ 0.5 mm
c t ≥ 0.9 mm
c t ≥ 1.0 mm

8 to 12
n t ≥ 2,
n t ≥ 2,
n t ≥ 3,
n t ≥ 4,

c t ≥ 0.6 mm
c t ≥ 0.6 mm
c t ≥ 1.0 mm
c t ≥ 1.1 mm

More than 12
n t ≥ 3,
n t ≥ 3,
n t ≥ 3,
n t ≥ 4,

c t ≥ 0.7 mm
c t ≥ 0.7 mm
c t ≥ 1.1 mm
c t ≥ 1.2 mm

wherein the C R -value corresponds to:

C
R

=

l
2

d
o
2

+

2
⁢

t
w
2

-

2
⁢

d
o

·

t
w

wherein l corresponds to the length of the glass articles in mm,
wherein d o corresponds to an outer diameter of the glass articles in mm,
wherein t w corresponds to a wall thickness of the glass articles in mm, the wall thickness of a rod-shaped article being equal to one half of the outer diameter,
wherein the plurality of different spaced positions and the minimum cross section are selected according to:

C R - value

Less than
6000 . . .
12000 . . .
More than

N L
3000
12000
20000
20000

Less than 8
c t ≥ 0.9 mm
c t ≥ 0.9 mm
c t ≥ 1.2 mm
c t ≥ 1.5 mm

8 to 12
c t ≥ 1.0 mm
c t ≥ 1.0 mm
c t ≥ 1.3 mm
c t ≥ 1.6 mm

More than
c t ≥ 1.1
c t ≥ 1.1 mm
c t ≥ 1.4 mm
c t ≥ 1.7 mm.

12

2. The method of claim 1 , wherein the plurality of different spaced positions and the minimum cross section are selected according to:

C R - value

Less than
6000 . . .
12000 . . .
More than

N L
3000
12000
20000
20000

Less than 8
n t ≥ 2
n t ≥ 3
n t ≥ 4
n t ≥ 5

8 to 12
n t ≥ 2
n t ≥ 3
n t ≥ 4
n t ≥ 5

More than 12
n t ≥ 3
n t ≥ 3
n t ≥ 4
n t ≥ 5.

3. The method of claim 1 , wherein unpacking a bundle of tubular and/or rod-shaped glass articles the step of pulling the thread-like element comprises applying a pulling force or tension in an axial direction that is between 0.1 N and 4 N.

4. The method of claim 1 , wherein the step of holding the bundle comprises applying a supplemental normal force on the bundle that is not greater than 100 N.

5. The method of c

Assignees

• Schott Ag

Inventors

• Sparschuh Georg Helmut

Classifications

• B65D2571/00012

  Bundles surrounded by a film · CPC title

• B65D75/002

  in shrink films (B65D71/08 takes precedence) · CPC title

• B65D71/0092

  provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids · CPC title

• B65D63/10

  Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof · CPC title

• B65B13/02

  Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes · CPC title