Shock-absorbing woven tape of threshold actuation

FIELD: textile industry.

SUBSTANCE: tape includes two parallel background layers arranged one over the other with fixed edges made by linen weave of warp and filling threads. Background layers are connected to each other by means of filling threads, which, being woven with warp threads of each background layer in alternating order, form adjacent discrete woven sections in them so that rectilinear sections of filling threads, which are arranged as inclined in the areas of their transition from one background layer to the other one and back, serve as ruptured energy-absorbing elements.

EFFECT: formation of shock-absorbing woven tape of threshold actuation, having higher uniformity of energy-absorbing threads rupture in it.

5 dwg, 1 tbl

 

The invention relates to the textile industry and can be used in shock absorbing devices of the transport belts, safety belts installers and any energy-absorbing devices, mainly in catching the units to absorb the kinetic energy of the moving mass.

The main attribute of a design woven tapes threshold trigger is the presence in their composition of two parallel relative to each other woven strips interconnected system threads, employees at the same time energy-absorbing elements being torn apart under the action of a predetermined threshold load. On one of the end sections of the ribbons threshold alarms interconnected woven strips method of incision share with the formation of the reeds of a given length, which are fixed on two different planes cushioning device. In the case of moving one or both planes attached to them reeds woven strips connecting threads are broken, thus there is a transformation of the kinetic energy of moving bodies in the work gap energy-absorbing connecting threads.

Known design shock absorbing site car safety harness containing two parallel spaced relation to each other layer TC is Noah tape, interconnected sewing thread, employees of the energy-absorbing elements. For a given load threshold sewing threads are destroyed, resulting in a depreciation shock [the United Kingdom Patent No. 1260397, CL AV 35/00, 1972 and the United Kingdom Patent No. 1458119, CL AV 35/00, 1976].

The disadvantage of this design is the necessity of using special sewing thread. In addition, the lines of firmware must be strictly perpendicular to the main thread woven tapes and direction of load application, as even minor distortions, which is extremely difficult to avoid, reduce the possibility of simultaneous rupture sewing thread along the length of the lines, causing uneven breaking load and therefore reduce the reliability of the cushioning device.

Closest to the invention to the technical essence and the achieved result is a shock-absorbing torn woven ribbon threshold triggering containing two parallel spaced relation to each other, the background layer is made basic weave and weft threads and interconnected system of depreciable torn depreciable threads, forming with each of the background layers of cells triangular in shape. [USSR author's certificate No. 1172954, MKI D03D 1/00, A62B 35/00, F6F 7/12, publ. 15.08.1985, bull. No. 30].

The disadvantage of this shock-absorbing woven ribbon threshold trigger is the high irregularity of the gap energy absorbing filaments constituting 50-60% threshold load, caused by the presence of the additional system energy-absorbing torn warp.

The technical task of the present invention is to provide a shock-absorbing woven ribbon threshold trigger, not containing in the structure an additional system torn warp and with greater uniformity of the gap in her energy absorbing yarns, not exceeding 40% threshold load.

This problem is solved due to the fact that the proposed shock-absorbing woven ribbon threshold trigger includes two parallel spaced one above the other background layer with fixed edges, made plain weaves main and weft threads. Background layers are interconnected weft threads, which, in an alternating interlacing with the warp threads of each of the background layers that form in them adjacent to each discrete woven plots weave. Torn shock-absorbing elements in the tape are nepetalactone based on the straight sections weft threads, inclined located in areas of transition from one is on the background layer to another and back. Minimum rapport on the basis of which is repeated in the film an odd number of times equal to 8, and full rapport at duck equal to

Ry=2m+2,

where m is an odd number of fixing the weft loops formed in each background layer after the transition duck from layer to layer.

For more durable fastening of the weft threads in the background layers of tape with the purpose of further improving the uniformity of the gap by removing internal stresses in the threads and fixing their relative location in the background layers, shock-absorbing woven ribbon threshold operation is performed from a homogeneous commodity composition of synthetic thermoplastic yarns in the warp and weft, and optionally subjected to heat treatment at a temperature equal to 70-80% of the softening temperature of the original thread, lasting at least 15 minutes. The specified temperature range due to the fact that at temperatures below the minimum value of the properties of the original threads remain virtually unchanged, and therefore does not relieve internal stresses in the threads and fixing their relative location in the background layers of tape, and at temperatures above the maximum value occurs irreversible destruction of the structure of the original thread, which leads to unpredictable changes in their properties and makes the tape unusable by a direct purpose

Figure 1 shows the drawing of the minimum rapport weave offer shock-absorbing woven ribbon threshold actuation combined with him arrangement of filaments in cross-sections of tape along the warp and weft threads. Minimal rapport weave on the basis of the tape has a pair of weft threads passing from one background layer to another layer.

In figure 1 we have adopted the following legend threads: O1...About8- warp with sequence numbers from 1 to 8; Y1...Y8- weft threads with sequence numbers from 1 to 8.

2 shows the arrangement of warp and weft threads cross-section of the ribbon threshold operation with one pair of connecting weft threads passing from layer to layer on the grounds of one of rapport on a duck.

Figure 3 shows a diagram of the location of the warp and weft threads cross-section of the ribbon threshold operation with three pairs of connecting weft threads passing from layer to layer on the grounds of one of rapport on a duck.

Figure 2 and figure 3 we have adopted the following legend threads: O1- warp top of the background layer tape, O2- the warp threads of the bottom background layer tape, weft threads, Inl- the width of the tape.

Figure 4 shows a diagram of the divide offer belts threshold actuation scheme and schedule changes razran the second load absorbing parts weft threads. Figure 4 adopted the following conventions: R - attached to the branches tape threshold load; a - amplitude (differential) breaking load; 1, 2, the first and second background layers of tape; 3 - nepetalactone based on the straight sections filling threads serving torn depreciable items offered tapes threshold trigger.

We offer shock-absorbing tape threshold alarms are produced on a Shuttle loom or ribbon-weaving machines of all types of textile yarns, mostly from chemical twisted filament yarn.

To confirm the technical result of the invention were produced experimental tape threshold actuation of the proposed design. Heat treatment of samples tapes threshold operation was carried out in a thermostat at a temperature of 1755C for 15 minutes.

Specifications made tapes of the proposed structure are shown in table 1.

The data in table 1 show that the inventive tape has a greater degree of uniformity of the gap energy absorbing filaments comprising from 17 to 35% load threshold, at 50-60% of its analogs, i.e. its main properties, it is clearly superior to known analogs.

On a shock-absorbing woven ribbon threshold triggering brands LTPS-12/100, TPSB-12/150 LTPS-12/80, LTPS-32/120, LTPS-32/140, LTPS-32/80, LTPS-52/140, LTPS-52/150, LTPS-52/110 made technical conditions TU 8378-058-00302379-2008 "Woven ribbon threshold triggering a series of "Barrier", and the process of their production - technological regulations.

Shock-absorbing woven ribbon threshold triggering containing two parallel spaced one above the other background layer with fixed edges, made plain weaves main and weft threads, wherein the background layers are interconnected weft threads, which, in an alternating interlacing with the warp threads of each of the background layers that form in them adjacent to each discrete woven plots, so that nepetalactone based on the straight sections weft threads, inclined located in areas of transition from one background layer to another and back are torn shock-absorbing elements, the minimum rapport on the basis of which is repeated in the film an odd number of times equal to 8, and full rapport at duck equal to Ry=2m+2, where m is an odd number of fixing the weft loops formed in each background layer after the transition duck from layer to layer.



 

Same patents:

FIELD: textile industry.

SUBSTANCE: tape includes film base and woven cloth that is arranged as a layer on one side of this film base and sticky layer arranged as a layer on the other side of this film base, besides total fill coefficient (CFtotal) calculated from fill ratios of both weft and warp that compose woven cloth makes from 500 to 1400, and one of warp fill ratios and weft fill ratios is in the range from 200 to 800. Also textile product is described, in which part of sewn part is treated with application of specified sealing tape. At the same time textile product is produced by means of sewing or fusing of laminated product from cloth.

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23 cl, 9 dwg, 4 tbl, 25 ex

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FIELD: textile, paper.

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FIELD: textiles; paper.

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FIELD: textiles; paper.

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FIELD: textiles; paper.

SUBSTANCE: invention refers to heat-resisting fabrics used mainly for heat insulation. Fabric includes woven core and filling threads. Filling threads are subject to destructive impact and capable of partial separation and felting of separate fibres from thread surface at transport, erection and operation impacts on fabric. Core threads are equipped with separated fibre parts formed during thread production. Increase in mechanical strength of fabric is reached at maintaining decreased aerotransparency of fabric without increase in its thickness and density of interweaving.

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16 cl, 12 dwg

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3 cl, 4 dwg, 1 tbl

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10 cl, 1 dwg

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10 cl, 1 dwg

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62 cl, 5 dwg

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FIELD: textile industry.

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29 cl, 5 dwg

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