Knitted ribbon and its use
A ribbon which is knitted for reinforcing a hollow element has at least two knitted ribbon parts which are connected to one another by at least one continuous weft thread which is laid in repeated loops, wherein the weft thread is tied up firmly into the respective ribbon part in fastening sections which change from ribbon part to ribbon part. In dividing sections between said fastening sections, the weft thread is guided to and fro in weft thread loops between the ribbon parts, wherein the loop heads of the weft thread loops are arranged releasably and stretchably on the ribbon parts. As a result, it is possible to produce the ribbon in a relatively small width and to widen it substantially for later use by releasing and stretching the loop heads.
This application claims priority of PCT application PCT/CH2007/000515 having a priority date of Oct. 19, 2006, the disclosure of which is incorporated herein by reference.
TECHNICAL FIELDThe invention relates to a knitted ribbon and to its use for the reinforcement of hollow bodies.
BACKGROUND OF THE INVENTIONKnitted ribbons of the type initially mentioned are known, for example, from DE 102 60 694 A. The knitted ribbon has at least two ribbon parts which are connected to one another by means of at least one weft thread laid in repeated loops. In the tie region, a releasable separating thread is arranged, after the removal of which the knitted ribbon is thinned out between the ribbon parts, and the ribbon parts are then connected to one another only via the weft threads. The spacing between the ribbon parts has remained virtually unchanged. Thinning out serves for improving the load-bearing properties and the breathing activity of the ribbon serving as bandage material.
U.S. Pat. No. 3,570,482 likewise describes knitted ribbon for medical purposes, which has in regions weft threads which go back and forth between stitch wales and which can be separated mechanically or by means of solvents and can be pulled out in order to subdivide the ribbon into separate ribbon parts.
FR-A-2 244 853 shows a ribbon of the type specified, but the loop heads of the weft thread loops are not arranged on the ribbon parts so as to be capable of being released and of being stretched out.
In the case of hollow bodies, such as, for example, bags consisting of flexible material, such as, for example, paper or textile material, there is the problem that, especially when they are filled with loose material, they do not assume a stable shape, but, instead, bulge out. Filled bags are correspondingly difficult to store and require a relatively large amount of space for this purpose.
SUMMARY OF THE INVENTIONThe object of the invention is to specify a knitted ribbon which, after production, can be brought to a greater width and is suitable for solving the problems mentioned.
This object is achieved:
- a) by means of a knitted ribbon; and
- b) by the use of the knitted ribbon for the reinforcement of hollow bodies consisting of flexible material.
Since the knitted ribbon has at least two knitted ribbon parts which are connected to one another by means of at least one continuous weft thread laid in repeated loops, the weft thread being tied firmly into the respective ribbon part in fastening portions alternating from ribbon part to ribbon part and being led back and forth in loops between the ribbon parts in separating portions between these fastening portions, the loop heads being arranged on the ribbon parts so as to be capable of being released and of being stretched out, a knitted ribbon is made available which can be produced so as to be relatively compact, that is to say, in particular, with small width, on a ribbon knitting machine. For further use, for example as a stabilizing ribbon, this ribbon can be pulled out to a greater width, only the releasable and stretch-out loop heads on the ribbon parts being freed and stretched. The stretched weft thread parts allow stabilization in their longitudinal direction.
The pulled-out knitted ribbon, that is to say with the stretched-out loop heads of the weft thread loops, serves preferably for the stabilization of hollow bodies consisting of flexible material. For this purpose, the ribbon parts are introduced, parallel to a corner fold, into a hollow body and are fastened to the side walls of the latter. The corner shape of the hollow body is consequently stabilized, so that the hollow body can maintain essentially its intended shape even when it is filled, for example, with loose material. The reinforcement of the hollow body by the ribbon prevents the side walls from bulging out. Such a hollow body, even in the filled state, is relatively stable and can therefore be stored in a space-saving way. This design even makes it possible for such hollow bodies to also be stacked one above the other in the filled state.
Exemplary embodiments of the invention are described in more detail below with reference to the drawings in which:
The knitted ribbon 2 shown in
According to the exemplary embodiments of
The ribbon depicted in
The ribbon can thus be produced in relatively narrow form, for example in a width of 9 cm, and then, as may be gathered from the upper part of
The knitted ribbon thus produced can then be arranged as a reinforcement 28 in a hollow body 30, as may be gathered from
The knitted ribbon 2 shown in
- 2 Knitted ribbon
- 4 Ribbon part
- 6 Ribbon part
- 8 Weft thread
- 10 Fastening portion
- 12 Weft thread loops
- 14 Stitch row
- 16 Stitch row
- 18 Separating portion
- 20 Weft thread loop
- 22 Loop head
- 22a Loop head
- 24 Stitch
- 26a Stitch wale
- 26b Stitch wale
- 27 Knock-over protector
- 28 Reinforcement
- 30 Hollow body
- 32 Corner fold
- 34 Side wall
- 36 Side wall
Claims
1. A knitted ribbon with at least two knitted ribbon parts which are connected to one another by means of at least one continuous weft thread laid in repeated loops, the weft thread being tied firmly into the respective ribbon part in fastening portions alternating from ribbon part to ribbon part, and, in separating portions lying between them, being led back and forth between the ribbon parts in weft thread loops, characterized in that the loop heads of the weft thread loops are arranged on the ribbon parts so as to be capable of being released and of being stretched out.
2. The knitted ribbon as claimed in claim 1, characterized in that the weft thread loops run over the entire width of the respective ribbon part in the fastening portions.
3. The knitted ribbon as claimed in claim 1, characterized in that the stretch-out loop heads of the weft thread loops are held, in the separating portions, by means of at least one stitch wale consisting of a warp thread, the lay of which can be pulled open.
4. The knitted ribbon as claimed in claim 3, characterized in that the pull-open stitch wale lies in each case on the inside of the ribbon part.
5. The knitted ribbon as claimed in claim 3, characterized in that the pull-open stitch wale lies in each case on the outside of the ribbon part.
6. The knitted ribbon as claimed in claim 1, characterized in that the stretch-out loop heads are arranged so as to extend beyond the width of the respective ribbon part.
7. The use of the ribbon as claimed in claim 1 for the reinforcement of hollow bodies consisting of flexible material, the ribbon.
8. The knitted ribbon as claimed in claim 2, characterized in that the stretch-out loop heads of the weft thread loops are held, in the separating portions, by means of at least one stitch wale consisting of a warp thread, the lay of which can be pulled open.
9. The knitted ribbon as claimed in claim 2, characterized in that the stretch-out loop heads are arranged so as to extend beyond the width of the respective ribbon part.
10. The use of the ribbon as claimed in claim 2 for the reinforcement of hollow bodies consisting of flexible material, the ribbon.
11. The use of the ribbon as claimed in claim 3 for the reinforcement of hollow bodies consisting of flexible material, the ribbon.
12. The use of the ribbon as claimed in claim 4 for the reinforcement of hollow bodies consisting of flexible material, the ribbon.
13. The use of the ribbon as claimed in claim 5 for the reinforcement of hollow bodies consisting of flexible material, the ribbon.
14. The use of the ribbon as claimed in claim 6 for the reinforcement of hollow bodies consisting of flexible material, the ribbon.
Type: Application
Filed: Oct 19, 2007
Publication Date: Feb 11, 2010
Inventors: Boyd Higgins (Gipf-Oberfrick), Mario Widmer (Herznach), Konstantin Antropow (Lorrach)
Application Number: 12/311,443
International Classification: D04B 1/22 (20060101); D04B 21/00 (20060101);