CN1321207A

CN1321207A - Webbing and method for producing same

Info

Publication number: CN1321207A
Application number: CN 99811704
Authority: CN
Inventors: 约翰·堡格; E·雷特尔; J·梅尔茨
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-02
Filing date: 1999-10-04
Publication date: 2001-11-07
Also published as: EP1115929A1; DE19947585A1; AU6333199A; BR9914204A; JP2002526683A; WO2000020672A1

Abstract

The invention relates to a method for producing an alternating single layered (flat tissue) and double-layered (hollow tissue) webbing having a face warp and a ground warp with weaker (connecting) warp threads (E) in the center of the webbing and four weft yarns controlled by shanks on a needle webbing loom with two open (right and left) alternating weft needles working in opposite directions.

Description

Webbing and weaving method thereof

The present invention relates to a kind of method of weaving the webbing that individual layer (flat fabric) and double-deck (tubing) replace, above-mentioned webbing has a table warp and a back of the body warp, (connection) warp that weakens is arranged in the centre of above-mentioned webbing, and the parallel that four heddle (heald) controls are arranged on the webbing knitting machine has the reverse reciprocating knitting needle of two open types (left side and right) on this knitting machine.

This kind fabric is applied to hold the airbag of automatic seat belt device.Under case of collision, the airbag that is contained in the double-deck part of above-mentioned webbing expands suddenly from part tubular holder seat belt is inner, is deployed in, and for example, the place ahead of Vehicular occupant chest protects his health to preserve from.This needs the airbag in the webbing to launch within the specific limits, so that the airbag of inflation can be in the front of Vehicular occupant on certain accurate position.As a result, leave the passenger in the vehicle during airbag inflation forward, just protrude and go, and the outburst seam not only is located at the side of webbing, also be located at the central authorities of webbing, deviate from webbing on the side of Vehicular occupant along this direction from webbing.The failure part of this device is the degree of reliability deficiency owing to safety, and a part is because woven cost height.

The objective of the invention is to propose weaving method and a kind of webbing that a kind of individual layer and two-layer fabric replace, this webbing has been avoided above-mentioned shortcoming at least, and, adopt this method to weave out the safe and reliable webbing that is provided with the structure explosion line with cheap cost.

Above-mentioned purpose is to be reached by the method described in the claim 1.The webbing that this method weaves out in a single weaving process have one on the bilayer part, be positioned at the woven structure explosion line of above-mentioned webbing central authorities, in particular, this involves a root architecture explosion line, the upper strata of webbing is along this root line explosion, allows airbag expansion in the webbing.More weak warp in the upper strata of these steps assurance webbing central authorities in this method can work, and these warps are worn in above-mentioned tubing with left and right-hand two shuttle pins in third and fourth time is throwed a spear.Be exactly that these two halves through bundle of lines tubing upper strata are tied mutually, so can be made into continuous upper layer of fabric.Each step according to method of the present invention makes the warp of these connections can inweave flat fabric portions, thus webbing outwardly less than these warps.In this structure, the intensity of the warp of connection is selected especially, so along with the unexpected increase of tubing internal pressure, just when above said collision situation takes place, during airbag igniting expansion, these warps are fracture just.Aspect another of this method described in the claim 2, at least two, more specifically is the central authorities that four more weak connection warps inweave webbing according to the present invention, can form extraordinary structure explosion line.

Describe embodiments of the invention with reference to the accompanying drawings in detail.In the accompanying drawing:

Fig. 1 is the schematic isometric of the webbing made according to method of the present invention through a section of extremely having simplified;

Fig. 2 is the sectional drawing along the A-A line of the webbing among Fig. 1;

Fig. 3 is the sectional drawing along the B-B line of the webbing among Fig. 1;

Fig. 4 be one of explanation use two open types work in opposite directions the webbing knitting machine of reciprocating knitting needle simplification schematic diagram;

Fig. 5 is the schematic diagram according to the wefting insertion order of the tubular fiber part of webbing of the present invention.

See also Fig. 1, represent one among the figure on the webbing knitting machine, with two open type reciprocating motion in opposite directions (left sides, one right side) webbing 2 that wefting insertion pin 16 and 18 is made into, this piece webbing 2 has second section double-deck webbing 6 of being made up of lower fibre layer 8 and top fibrous layer 10 of first section individual layer webbing 4 and back.Lower fibre layer 8 and top fibrous layer 10 have formed a flat pipe.The lines SBL that dots in top fibrous layer 10 has formed one and has knitted at the webbing mid portion with the following method that will describe along top fibrous layer 10, so-called structure explosion line SBL.The effect of this structure explosion line SBL is, for example, in a seat harness (not shown) made from the webbing 2 that is made into according to method of the present invention, can allow and be arranged in that airbag (not shown) between

fibrage

8 and 10 is quick-fried to expand, this airbag has been full of owing to light the gas that a gunpowder device (not shown) discharges, and is carved into for thirty years of age to be balloon.

See also Fig. 2, the single-layer portions of the webbing 2 of expression in Fig. 1 among the figure is promptly along the cross section of the A-A line of first section webbing 4.This partial design of webbing becomes can be contained in the retractor device (not shown) of seat harness module (not shown).

See also Fig. 3, the double-deck part of the webbing of expression in Fig. 1 among the figure is promptly along the cross section of the B-B line of second section webbing 6.This part of webbing is intended to be used for the airbag of between

fibrage

8 and 10 containing seat seat belt, and renting of seat harness illustrated in the above.

Be made into according to General Principle according to webbing of the present invention 2, so the first section webbing 4 that is made into earlier is individual layer (flat fabrics), then when forming second section webbing 6, be made into double-deck (tubing), top tissue layer 10 and bottom tissue layer 8 are wherein arranged, throw a spear thereby finish one replication, after this, be made into first section webbing 4 of one section individual layer again, so circulation braiding.This order in this method can be enough extremely simple and low cost equipment weave out the sort of webbing above-mentioned or seat harness.

In order to make structure explosion line SBL above-mentioned, above-described just now basic knit operation will be carried out especially accurately according to the following steps.But, at first want to be used for the braiding machine of above-mentioned purpose shown in the following Fig. 4 of Short Description.

See also Fig. 4, explanation is for the member of the crucial knitting banded fabric weaving machine 20 of the present invention earlier, they comprise a left knitting needle 16 and a right-hand knitting needle 18, in detail drawing 16v and 18v, amplify the structure of having represented they heads, and in illustrative Fig. 4, parallel S works out with corresponding knitting needle 16 and 18 respectively, shown in the dotted line among the figure.In the known circus movement of those skilled in the art, knitting needle 16 and 18 moves along arrow 17 and 19, and parallel is knitted between table warp and back of the body warp.Be noted that the general two knitting needle webbing braiding machines that only relate to illustrated in fig. 4.To see Fig. 5 and about the explanation of Fig. 5 about the details of throwing a spear (involving four different parallels this moment) according to knitting needle of the present invention.Among Fig. 4, clearly, knitting needle 23 and supporting member thereof on the left of each selvedge of webbing is provided with, and right side knitting needle 24 and supporting member thereof, parallel is woven together with these two knitting needles and seam pleat line.

Braiding is to carry out on the webbing knitting machine (Fig. 4) with two reverse reciprocating motion knitting needles 16 of open type and 18.Sending to by four parallel A, B, C and D with heddle (heald) control of throwing a spear formed.The arrangement of parallel is as follows: parallel B sends into from the left of fabric, and parallel A sends into from the right-hand of fabric, and two parallel C and D then send into from the centre of fabric.Heddle (heald) control is finished by a lifter (not shown).Webbing is by a controlled closable adjuster tractive.

See also Fig. 5, the style of the parallel that each step in this method that will describe below schematically having represented among the figure has been specialized.For purposes of simplicity of explanation, except joint E, all warps have been omitted.Known as those skilled in the art, the seam pleat line of webbing both sides and their clamping ring have omitted too, so that see clearlyer.

Throw a spear each time and all use the lowercase among Fig. 5 to determine according to following order:

Double layered tubular fabric 6 weaves according to following steps:

D) throw a spear for the first time

Da) with right-hand shuttle pin 18 whole width of crossing webbing from right-hand first parallel of sending to (A), up to the left selvedge, but only the back of the body through in;

Db) at the left selvedge first parallel (A) and first is stitched pleat line clasp joint together;

E) throw a spear for the second time

Ea) half width of the 3rd parallel of roughly sending to (C) being passed webbing in the middle of webbing with the shuttle pin 16 of left, up to right-hand selvedge, but only table through in;

Eb) at right-hand selvedge the 3rd parallel (C) and second is stitched pleat line clasp joint together;

F) throw a spear for the third time (stopping the tractive webbing)

Fa) half width of the 4th parallel of roughly sending to (D) being passed webbing in the middle of webbing with right-hand shuttle pin 18, up to the selvedge of left, but only in the table warp;

Fb) at the left selvedge the 4th parallel (D) and second is stitched pleat line clasp joint together;

G) throw a spear for the 4th time

Ga) second parallels of sending to from left with shuttle pin 16 handles of left (B) are crossed whole width of webbing, up to right-hand selvedge, but only in back of the body warp;

Gb) second parallel (B) and the first pleat line clasp joint together at right-hand selvedge;

H) throw a spear for the 5th time

Ha) half width of the 4th parallel of roughly sending to (D) being passed webbing in the middle of webbing with right-hand shuttle pin 18, up to the selvedge of left, but only in the table warp;

Hb) at the left selvedge the 4th parallel (D) and second is stitched pleat line clasp joint together;

I) throw a spear for the 6th time (stopping the tractive webbing)

Ia) half width of the 3rd parallel of roughly sending to (C) being passed webbing in the middle of webbing with the shuttle pin 16 of left, up to right-hand selvedge, but only up in the warp;

Ib) the 3rd parallel (C) and the second pleat line clasp joint together at right-hand selvedge;

K) throw a spear for the 7th time: with throw a spear for the first time identically, the rest may be inferred by analogy.

As shown in Figure 5, throw a spear each time and all enter woven webbing left side and right side and indicate during one of F is listed as, for those skilled in the art, clearly, represented among Fig. 5 only is the section of this signal of throwing a spear several times, that is, from the top to the bottom (as shown in Figure 5) weave certainly just their part of action, and this throw a spear at every turn all will be from d) repeat to i).

Said structure explosion line SBL realizes by the more weak warp E that inweaves in the middle of the webbing, as shown in Figure 5, this warp by left shuttle pin 16 and right-hand shuttle pin 18 at f) and g) inweave in throwing a spear for this twice.These warps E is bound up on the both sides of top fabric, forms a continuous top fabric.The flat fabric of mentioning has in the above partly inweaved above-mentioned warp E, so be invisible on the surface of webbing.

The tractive of webbing stops in the above-mentioned steps order of the inventive method, in this case, known to technical staff in the art, and, usually carry out nonproductive adding when throwing a spear and use at needs, that is, in the method for the invention, one when weaving on the whole width at webbing, just recovers the tractive of webbing.

In said method, be used to weave the step of the flat fabric of individual layer, be arranged in according to the step a) in the method for claim 1 to c) in carry out, throwing a spear a) and b of unclamping) between, when weaving flat fabric portions, do not need parallel C and D.

Claims

1. method of weaving the webbing that individual layer (flat fabric) and double-deck (tubing) replace, above-mentioned webbing has a table warp and a back of the body warp, (connection) warp (E) that weakens is arranged in the centre of above-mentioned webbing, and the parallel that four heddle (heald) controls are arranged on the webbing knitting machine, the reverse reciprocating shuttle pin of two open types (left side and right) is arranged on this knitting machine, and this method comprises the following steps: when weaving above-mentioned (individual layer) flat fabric

A) throw a spear for the first time

Aa) with right-hand shuttle pin the whole width that pass webbing from right-hand first parallel of sending to (A), up to the left selvedge;

Ab) first parallel (A) and the first pleat line clasp joint together at the left selvedge;

B) throw a spear for the second time

Ba) make second parallel of sending to from left (B) cross whole width of webbing with the shuttle pin of left, up to right-hand selvedge;

Bb) at right-hand selvedge second parallel (B) is stitched pleat line clasp joints together with E two;

C) throw a spear for the third time with a) throw a spear for the first time identical, and the like;

And, also comprise the following step that is used to weave adjacent (bilayer) tubing:

D) throw a spear for the first time

Da) make whole width of crossing webbing from right-hand first parallel of sending to (A) with right-hand shuttle pin, up to the left selvedge, but only in back of the body warp;

Db) first parallel (A) and the first pleat line clasp joint together at the left selvedge;

E) throw a spear for the second time

Ea) the shuttle pin with left makes a half width of roughly passing webbing at middle the 3rd parallel of sending to (C) of webbing, up to right-hand selvedge, but only in the table warp;

F) throw a spear for the third time (stopping the tractive webbing)

Fa) make a half width of roughly crossing webbing with right-hand shuttle pin at middle the 4th parallel of sending to (D) of webbing, up to the selvedge of left, but only in the table warp;

G) throw a spear for the 4th time

Ga) make second parallel of sending to from left (B) cross whole width of webbing with the shuttle pin of left, up to right-hand selvedge, but only the back of the body through in;

Gb) at right-hand selvedge second parallel (B) and first is stitched pleat line clasp joint together;

H) throw a spear for the 5th time

Ha) make a half width of roughly passing webbing with right-hand shuttle pin at middle the 4th parallel of sending to (D) of webbing, up to the selvedge of left, but only in the table warp;

I) throw a spear for the 6th time (stopping the tractive webbing)

K) throw a spear for the 7th time: with d) throw a spear for the first time identically, the rest may be inferred by analogy.

2. the method for claim 1 is characterized in that, at least two more specifically is the centre that four more weak (connection) warps (E) inweave above-mentioned webbing.