Bag, method for the production of a bag and machine system for the production of a bag

Patent metadata

Field	Value
Publication number	US-10131469-B2
Application number	US-201414893535-A
Country	US
Kind code	B2
Filing date	Feb 26, 2014
Priority date	May 24, 2013
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

The invention relates to a bag ( 10 ) comprising a front wall ( 11 ) and a back wall ( 12 ) arranged parallel to the front wall ( 11 ), a bottom ( 13 ) that can be folded into the plane of the walls ( 11, 12 ), such that a filling chamber ( 14 ) results that is open on one side, and a pair of carrying handles ( 31 ) that is attached on the front wall ( 11 ) and the back wall ( 12 ). According to the invention, the pair of carrying handles ( 31 ) comprises a folding line ( 15 ) in the filling space ( 14 ), such that the pair of carrying handles ( 31 ) can be brought into a usage position ( 1 ) and in a rest position ( 2 ), wherein in the rest position ( 2 ) the pair of carrying handles ( 31 ) is entirely folded back inside the filling chamber ( 14 ) and in the usage position ( 1 ) the pair of carrying handles ( 31 ) protrudes at least in certain areas from the filling space ( 14 ).

First claim

What is claimed is:

1. Method for the production a bag, with a front wall and a back wall arranged parallelly to the front wall, a bottom that can be folded into the plane of the walls so that a filling chamber results that is open to one side and a pair of carrying handles that is attached on the front wall and the back wall, wherein:
a) Assembly of two carrying elements spaced apart from one another at a translationally moving material web, wherein at the carrying element at least one foldable handle is integrated,
b) Tube configuration of the material web so that the material web configures a tube and the carrying elements are lying on top of one another,
c) Separation of the material web so that single tube sections result with at least two carrying elements lying on top of one another entirely within the tube,
d) Folding of the tube so that at least one bottom results;
wherein step d) occurs previous to step c).

2. Method according to claim 1 , wherein previous to step b) an opening aid is assembled at the edge of one of both carrying elements.

3. Method according to claim 1 , wherein the carrying element comprises two foldable handles which are assembled one behind the other in step a) in the direction of the material web movement.

4. Method according to claim 3 , wherein previous to step b) an opening aid is assembled in the centre of one of both carrying elements.

5. Method according to claim 1 , wherein the carrying elements which are lying on top of one another according to step b) are aligned and assembled towards one another perpendicular to the material web movement direction during the application on the material web subsequently to step a).

6. Method according to claim 1 , wherein that subsequently to step a) or previous to step a) a perforation line is applied to the material web perpendicular to the material web movement direction.

7. Method according to claim 1 , wherein that in step d) two bottoms are folded which are opposing one another and subsequently the the configured tube with bottoms and carrying elements is separated in the centre so that two bags result.

8. Method according to claim 1 , wherein previous to step a) the carrying element is punched or perforated or lasered in a way that at least one handle results which is foldable from the carrying element.

9. Bag which is produced with a method according to claim 1 .

Assignees

• Windmoeller & Hoelscher

Inventors

• Thies Jörg Christian

Classifications

• B31B50/86

  Forming integral handles; Attaching separate handles · CPC title

• B31B2150/00

  Flexible containers made from sheets or blanks, e.g. from flattened tubes · CPC title

• B65D33/04

  Windows or other apertures, e.g. for viewing contents {(ventilation apertures B65D33/01; windows for level indication B65D33/004)} · CPC title

• B65D33/007

  for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open · CPC title

• B65D33/004

  Information or decoration elements, e.g. level indicators, detachable tabs or coupons · CPC title