Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
  • D03D47/02—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein loops of continuous weft thread are inserted, i.e. double picks
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D1/00—Woven fabrics designed to make specified articles
  • D03D1/0005—Woven fabrics for safety belts
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
  • D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
  • D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D35/00—Smallware looms, i.e. looms for weaving ribbons or other narrow fabrics
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2401/00—Physical properties
  • D10B2401/04—Heat-responsive characteristics
  • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2505/00—Industrial
  • D10B2505/12—Vehicles
  • D10B2505/122—Safety belts

Definitions

• the present invention relates to a method of weaving a ribbon with a right weft thread (SFR) and a left weft thread (SFL) and a needle ribbon loom.
• the known straps and methods for producing the same are too expensive by today's standards and can no longer satisfy the meantime increased demands of vehicle manufacturers.
• the requirements for straps with comfortable soft edge areas have increased, while the interior area should have the highest lateral stiffness.
• the known devices for the production of straps are very complicated and difficult to control in operation.
• the object of the present invention is therefore to propose a webbing, a method and a needle-loom of the type mentioned, wherein the disadvantages known from the prior art are avoided or at least greatly minimized.
• a method for weaving a tape with a right weft thread and a left weft thread which is characterized in that the two weft threads from both sides of the tape registered simultaneously in the same subject, in Schussumlicatesch Surprise order Shot retainer laid around, are essentially held to the stop by the reed at the stop of weft retainers and that only then a subject change is made.
• both weft threads enter from the right or left weft insertion side simultaneously and almost symmetrically across the tape, where they are respectively held on the opposite side by a weft retainer arranged there, after which the weft needles pull back to her side, and take the weft yarn and keep it taut until the reed strikes the freshly inserted weft threads on the already woven strip material, which struck up to this time by the weft retainers weft threads are fixed and fixed by the previous change of subject.
• the tape is advantageously made entirely without the use of catch or crochet hooks, reed or calliper needles. There is also no meshing or crocheting of the weft thread.
• An advantageous development of the method according to the invention for weaving a webbing with an inner region, a preferably soft right edge region and a preferably soft left edge region is characterized by the following repetitive first step sequence: ar) entering the right weft thread from the right side of the band into the right
• the method is advantageously characterized in that two weft needles guiding the weft threads, each coming from the right or left weft insertion side, simultaneously and almost symmetrically enter the weft threads across the band, which in each case on the opposite side in the transition region between inner region and edge region of a shot retainer arranged there is held, after which the Retract weft needles back to their side, and then take the weft yarn and keep it taut until the reed strikes the freshly inserted weft threads on the already woven webbing, the weft yarns held up to this point by the weft retainers are struck and fixed by the following tray change.
• a further advantageous development of the method according to the invention for weaving a webbing, whose right and left weft yarns are hybrid threads, is characterized by the following step carried out after the weaving process: thermosetting of the webbing.
• hybrid threads are used as weft threads, which are converted by a post-weaving thermofixing process into monofilament-like thread structures and give the webbing according to the invention an increased monofilament qualities approaching transverse stiffness without actually using monofilament.
• Hybrid threads are threads consisting of materials of different melting temperatures. These are known from the prior art.
• the advantage here is that after interweaving such hybrid threads as weft threads, as claimed here, a solidification of hybrid threads is made possible in a monofilament-like state, if they are subjected to a heat setting process after weaving.
• the components of the lower melting point hybrid filaments melt and flow, embedding the higher melting point components into monofilament-like structures with the benefits of monofilament-like structures, namely, increased flexural elasticity, transverse stiffness and, as webbings call it, cross-belt return force ,
• a further advantageous embodiment of the method according to the invention is to use in addition to the left weft needle a left additional weft needle for the entry of a monofilament weft, which is now supplied in the transition region between the left edge region and the inner region, wherein the monofilament weft thread on both sides in addition to the above-mentioned weft threads also from the weft retainers is held, so that the result is the additional Monof ⁇ l weft is woven only indoors.
• the method is characterized by the following further steps: az) entering one, preferably in the transition region from the inner region to the left
• step ar Additional weft needle simultaneously to step ar), bz) holding the monofilament weft thread in the transition region from the inner region to the right edge region by means of the right weft retainer simultaneously to step br), cz) catching the monofilament weft with the right weft retainer and retracting the right weft retainer until to sheet stop simultaneously to step he), dz) retracting the left auxiliary weft needle simultaneously to step dr).
• Grasping, loosening and striking the monofilament weft thread is analogous to the processes relating to the weft threads just described. For this purpose, as will be explained later in the description, an additional weft needle is used.
• the additional weft thread of monofilament additionally used according to the invention indoors advantageously leads to providing the inner webbing with increased transverse rigidity, while at the same time the edge regions are soft as desired.
• a further advantageous development of the method according to the invention for weaving a band is characterized by the following, optionally with the first step sequence according to claim 2, alternating second step sequence for the optional formation of picots on the outer edges of the band: apr) registering the right weft thread from the right side of the band over the entire
• Shot loops simultaneous to step bpr), dr) retracting the right weft needle to the right side of the tape, d) returning the left weft needle to the left side simultaneously to step dr), ep) releasing the weft loops formed in steps bpr) and bpl) from the two second weft retainers, f) striking the two Weft threads with a reed.
• multifilament yarns that guarantee a soft edge.
• multifilament threads are also used as warp threads of straps for safety belts. This results in the edge regions advantageously the desired soft edge.
• a needle-loom according to claim 8 which is equipped with right and left weft needle, which are simultaneously controllable to each other, and a right and left shot retainer, which for holding and releasing the left or Serve right weft and also coordinated to each other, in particular, are formed simultaneously working together, and having a reed.
• the needle-loom is characterized in that the weft retainers are mounted fixed to the machine, and that on the reed, preferably slightly towards the sheet stop-oriented stripping and holding wires are arranged elastically, which are suitable due to the Sheet movement of the weft needles on the hooks of the weft retainer slipped weft loops before the tray change and before the sheet stop of the weft retainers strip and hold by pressing against the sheet stop until it strikes the reed itself.
• the needle-loom according to the invention may additionally be characterized in that the weft retainers are formed vertically resilient so that they can be easily lifted by the taut weft threads and facilitate the sliding down the weft threads.
• the inventive method for producing a webbing according to the invention can be produced in a much simpler and more wear-resistant manner, as is known from the prior art.
• For the production of soft edges no fishing threads and no locking threads are required.
• the entire equipment required for this purpose is also eliminated.
• a heat-setting operation is performed after the weaving process.
• Fig. 1 shows schematically a greatly enlarged webbing and essential parts of a needle-loom during a first stage of the process, in which the weft needles have reached about one-third in the shed.
• Fig. 2 shows schematically a greatly enlarged webbing and the parts of the needle-loom during a second stage of the process, wherein the weft needles are in maximum extended end position.
• Fig. 3 shows schematically a greatly enlarged webbing and the parts of the needle ribbon loom during a third stage of the process, wherein the reed is located just before the stop.
• the weft needles are here (again) reduced maximum.
• Fig. 4 shows a representation similar to the representation of Fig. 1, but with additionally inserted monofilament weft needle for the entry of a Monof ⁇ l thread.
• FIG. 5 shows a representation corresponding to FIG. 2 with the use of an additional monofilament weft needle.
• FIG. 6 shows a representation analogous to FIG. 3 with an additionally inserted monofilament weft needle.
• Fig. 7 shows very strongly schematized a variant of a machine-mounted weft retainer and a thereto to be moved reed in the situation in which between reed and weft retainer still the weft needles are, shown schematically from the side, for a band edge.
• Fig. 8 also shows schematically as shown in Fig. 7, the configuration just described at a later date, in which already comes a stripping and holding wire with the weft loop in contact to push them to the sheet stop.
• FIG. 9 shows a very greatly enlarged view of the situation according to FIG. 8, seen in the direction of the arrow DS from FIG. 8.
• FIG. 10 shows the reed, exemplified in FIGS. 7 and 8, with the exemplary arrangement of a stripping and retaining wire.
• Fig. 11 shows schematically a top view of a band with picots at the edges.
• Fig. 12 shows schematically a plan view of a highly exploded detail of the tape of Fig. 11 to illustrate the production of picots at the edges.
• FIG. 13 shows schematically a side view of the weft retention positions used in the manufacture of a band according to FIGS. 11 and 12.
• Fig. 14 shows schematically partially in section a further embodiment of an inventive device with a weft needle for two weft, with eyelet and safety gear.
• Fig. 15 shows schematically in partial section an enlargement of the detail X of Fig. 14 from the side and from above.
• Figures 16a to 16c show schematically, partially in section, an enlargement of the detail X of Figure 14 from the side in three different stages X 1 to X 3 .
• Fig. 1 shows a webbing 2, wherein the right and left side of the webbing to correspond to the right and left side of the drawing, corresponding to the capital letters R and L, which are taken below the Fig. 1 in circles. This reading should apply to all figures discussed here.
• the webbing 2 is schematically divided into three areas, a left edge area RL, an inside area M and a right edge area RR.
• weft retention SRHR right
• SRHL left
• auxiliary retention points which, due to their function, lead to the shot reversal points opposite the weft insertion side, which lie within the material of the webbing according to the invention and thus "disappear". Outside these shot reversal points is only the soft edge, which is shown only by a weft.
• Fig. 1 shows the weft needles SNL and SNR about a third retracted into the shed
• Fig. 2 already shows the end position of the weft needles in the maximum entry state
• 3 again shows the opposite, maximally retracted situation of the weft needles SNL and SNR and also the weft reversal points formed on the outer edge of the inner region due to the weft retention function. It can be seen in Fig. 3, the already moved closer to the entry zone reed WB, which moves in the next step according to the adjacent arrow on the freshly inserted weft threads and this strikes the, already hatched below shown woven, material.
• Fig. 1 shows, on the right-hand side, a weft retainer SRHR which has the form of a sawtooth.
• Fig. 1 shows, on the right-hand side, a weft retainer SRHR which has the form of a sawtooth.
• the two weft yarns SFR and SFL are shown as dots in cross section just before they are pushed onto the weft retainer SRHR due to the movement of the weft needles so as to be in the position shown in Fig. 2 (right side) , Arrive.
• Fig. 3 (right side) already shows the state of the weft retainer SRHR, in which the weft threads are removed therefrom and struck by the action of the reed on the material.
• the inventive method for producing a belt having an inner region (M), a soft right edge region RR and a soft left edge region RL, with a right weft SFR and a left weft SFL, runs after the following repetitive step sequence:
• FIGS. 4 to 6 now show a sequence of steps analogous to FIGS. 1 to 3 with the additional circumstance that in the method and apparatus shown here a monofilament weft needle SNZ is additionally shown, which is shown hatched for particular distinction.
• Fig. 6 reference is made in particular to the two shot reversal points SUL on the left side and SUR on the right side, which result from actuation of the weft retainers SRHR and SRHL.
• 5 shows, in the region of the transition from the inner region to the left edge region at the edge of the already completely woven material, a point ZZ, which is intended to be exemplary for the feeding of the additional thread SFZ.
• the Zufiih- tion can be a heald or similar device. Tracing the steps of the second exemplary embodiment of a weaving method according to the invention using an auxiliary weft needle for an additional weft thread with reference to FIGS. 4 to 6, it can be seen in Fig.
• Fig. 5 already shows the position of the weft needles after complete penetration of the shed in maximum extension / end position.
• Fig. 6 again shows the opposite maximum return position of the weft needles from the shed, the reed WB is already in motion in accordance with the adjacent arrow on the already finished fabric or the weft yarn located in front of it, which are posted on the already finished material on the way , As the next step, the reed is again moved away from the stop, and the weft insertion begins again from the front, so that the situation is shortly as shown in Fig. 4, etc.
• edge areas RL and RR only 4 to 8 warp "wide ", just so wide that the additional thread from the outside, so from the outer edge of the webbing is not noticeable.
• the embodiment of the inventive device and the associated method described here with the left additional weft needle SNZ is instead or simultaneously possible analogously with right additional weft needle. It then results in a mirror image or symmetrical situation.
• With a sufficiently large space in the compartment can advantageously also a variant with two additional weft needles - a right and a left - are used.
• weft retainers SRHL, SRHR move slightly arcuately back and forth. As the weft retainers move forward - away from the sheet stop - the weft yarns presented by the weft needles slide past the oblique, upwardly directed hook tips down into the gussets of the hooks (See Figures).
• FIG. 7 shows, by way of example, highly schematically and only qualitatively illustrated, a webbing 2 which opens on the sheet stop BA into a compartment A-C formed by warp threads KF.
• a machine-fixed arranged hook-shaped curved needle here a weft retainer SRH, is located near the area BA.
• the reed WB is about to move in the direction of the arrow ZBA to bring the weft threads SF with the stripping and holding wire FSDr in the position shown in Fig. 8 just before the sheet stop BA, wherein the stripping and holding wire FSDr In the position of the reed WB shown in FIG. 8, the weft SF touches and elastically bends on the further path of the reed moving in FIG.
• Fig. 9 shows the last-described situation greatly enlarged, in which case only one edge of the inventive belt is shown in connection with the inventive development of the present invention.
• the already finished woven webbing 2 can be seen in the lower part of FIG. A selvedge should be represented by the right edge RR.
• a stripping and retaining wire FSDr attached and shown here partially cut which presses the laid around the hook H of the weft retainer SRH weft loop SFS of the weft SF to the sheet stop BA.
• the newly traveled movement of the reed is indicated by the arrow ZBA.
• FIGS. 9 and 10 Shown only schematically is the reed WB in Fig. 10 seen from the front, the viewing direction corresponds to the view of the representation of FIG. 7, there from left to right. Good to see the arrangement of the stripping and retaining wire FSDr. It should be noted that FIGS. 9 and 10 only cutouts for the right edge region of the webbing again stressing that the scales of FIG. 9 and FIG. 10 do not correlate with each other.
• Fig. 11 shows very highly schematic of the top view of a band 4, which is provided on both sides at the edges with picots or loop tufts 6.
• a region P extending in the warp direction according to the arrow K is marked, which is intended to help describe the weft thread guide of a right-hand weft needle in this region in detail, greatly expanded in FIG.
• the weft retainers, as described in detail above in function and arrangement, are arranged in the example described in FIGS. 11 and 12 in the positions A and B arranged transversely to the strip width.
• the weft retainer in position A works like a weft retainer in the examples described above, namely within the two edges of the tape and serves to retain the weft thread SFR which has been introduced to the left by the right-hand weft needle (not shown), which thereby forms a weft thread loop in position A. which lies within the band.
• a second weft retainer SRHL2 is arranged in position B, which holds the (right) weft SFR, registered by the (right) weft needle (not shown), until the Weft needle from the tray back to the right is moved to the starting position and moves the reed, not shown here WB shortly before close to the sheet stop and thus the weft loop PS for the Picot in position B, so overhanging over the left edge of the tape. 4 fixed.
• FIG. 12 does not represent the left-hand weft thread SFL, which is simultaneously entered from the left, to simplify the overview.
• the configuration of the weft yarn SFR which is only shown qualitatively, is understood to be compressed in the warp direction, so that it occupies schematically only the warp thread length region P, as shown in FIG. 11. It then results from the accumulation of a plurality of successively or adjacent weft loops Picots 6 and the Picotkante. 8
• FIG. 13 shows schematically the two weft retainers used in the exemplary embodiments according to FIGS. 11 and 12, namely in the positions A: weft retainer SRHL and Position B: weft retainer SRHL2, which lies outside the band 4 to be woven.
• the shot retractors move according to the arrows VZ away from the sheet stop BA and there.
• the weft retainer SRHL2 is also operated in two positions Y (raised when no picots are made) and Z (lowered when picots are made).
• FIG. 14 shows a device according to the invention for carrying out a Varianta of the method according to the invention, in which the two weft threads SFL and SFR are introduced by only one weft needle 28 (details see FIG. 15).
• the weft needle 28 has an eyelet 36 in the region of its needle tip 34, by means of which the first weft thread SFL is guided and inserted into the shed.
• a second (right) weft SFR is when retracting or retracting the weft needle 28 from the shed by means of a arranged in the needle tip 34 safety gear 42 with a hook 40, which can be placed in different rotational locking positions, captured and retracted into the shed.
• FIG. 14 shows the position of the weft needle 28, which is disproportionately enlarged here for reasons of simpler representation, in which it has inserted the left weft thread SFL into the shed.
• the hook 40 has already passed the right weft SFR.
• a pusher 30 is provided to now press the weft SFR in the path, which takes the hook 40 on the way back of the weft needle 28 according to arrow RW (Fig. 16a and 16b).
• the right-hand weft SFR is taken along by the hook 40 (FIG. 16a) and guided from the weft needle 28 to beyond the left weft retainer SRHL until the hook 40 is reached by touching and "running over" a machine-fixed stop 32 (FIGS.
• the invention eliminates the previously constantly required catching threads and locking threads, and the equipment required for it.
• the invention results in a comparison with the prior art advantageously thinner band, which represents a very special progress especially with softer edge for comfort in the vehicle.
• the band according to the invention can be carried out more favorably than the prior art by eliminating process steps and components at the corresponding devices, as is possible in the prior art.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Looms (AREA)
• Woven Fabrics (AREA)
• Automotive Seat Belt Assembly (AREA)
• Package Frames And Binding Bands (AREA)
• Finger-Pressure Massage (AREA)
• Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

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